package ProFTPD::Tests::Modules::mod_proxy;

use lib qw(t/lib);
use base qw(ProFTPD::TestSuite::Child);
use strict;

use Carp;
use Cwd;
use File::Copy;
use File::Path qw(mkpath);
use File::Spec;
use IO::Handle;
use IO::Socket::INET;
use Time::HiRes qw(gettimeofday tv_interval usleep);

use ProFTPD::TestSuite::FTP;
use ProFTPD::TestSuite::Utils qw(:auth :config :running :test :testsuite);

$| = 1;

my $order = 0;

my $TESTS = {
  proxy_sighup => {
    order => ++$order,
    test_class => [qw(forking os_linux)],
  },

  proxy_reverse_connect => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_connect_failed_bad_dst_addr => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_connect_failed_non2xx => {
    order => ++$order,
    test_class => [qw(forking mod_wrap2 mod_wrap2_file reverse)],
  },

  proxy_reverse_connect_failed_timeout => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login_roundrobin_after_host => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login_peruser_after_host => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login_extra_user => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login_extra_pass => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login_failed => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_login_chrooted => {
    order => ++$order,
    test_class => [qw(forking reverse rootprivs)],
  },

  proxy_reverse_login_no_backend_proxy_protocol => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_feat => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_abort => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_list_pasv_enoent => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_list_port_enoent => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_epsv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # TODO: proxy_reverse_epsv_all

  proxy_reverse_eprt_ipv4 => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_eprt_ipv6 => {
    order => ++$order,
    test_class => [qw(feature_ipv6 forking reverse)],
  },

  proxy_reverse_retr_pasv_ascii => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_retr_pasv_binary => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # This needs to handle chunks larger than the transfer buffer size;
  # maybe use SocketOptions to tune them differently; handle short writes
  # via outer/inner loops in data_send().

  proxy_reverse_retr_large_file => {
    order => ++$order,
    test_class => [qw(forking reverse slow)],
  },

  proxy_reverse_retr_empty_file => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_retr_abort => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stor_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stor_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stor_large_file => {
    order => ++$order,
    test_class => [qw(forking reverse slow)],
  },

  proxy_reverse_stor_empty_file => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stor_pasv_eperm => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stor_port_eperm => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stor_abort => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_rest_retr => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_rest_stor => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_stat => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_unknown_cmd => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_uri_creds_login => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_uri_creds_login_failed_bad_dst_user => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_uri_creds_login_failed_bad_dst_passwd => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_uri_creds_login_with_reverse_proxy_auth => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_passiveports_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_passiveports_epsv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # MasqueradeAddress only really applies to PASV
  proxy_reverse_config_masqueradeaddress => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_allowforeignaddress_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_allowforeignaddress_eprt => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # Normal TimeoutIdle, honored by mod_proxy (frontend and backend)
  proxy_reverse_config_timeoutidle_frontend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_timeoutidle_backend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_timeoutlogin_frontend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # Normal TimeoutNoTransfer, honored by mod_proxy (frontend and backend)
  proxy_reverse_config_timeoutnoxfer_frontend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_timeoutnoxfer_backend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # Normal TimeoutStalled, honored by mod_proxy (frontend and backend)
  proxy_reverse_config_timeoutstalled_frontend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_timeoutstalled_backend => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # XXX What about TimeoutSession, TimeoutLinger?

  proxy_reverse_config_datatransferpolicy_pasv_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_pasv_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_port_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_port_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_epsv_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_epsv_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_eprt_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_eprt_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_active_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_active_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_active_list_eprt_port_fallback => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_passive_list_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_passive_list_epsv_pasv_fallback => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_passive_list_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_datatransferpolicy_client => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_client => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_list_unix => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_list_unix_use_slink => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_list_unix_wide_dir => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_list_windows => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_list_backend_error => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_directorylistpolicy_list_opts_mlst => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_random => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_shuffle => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_roundrobin => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_roundrobin_issue132 => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_leastconns => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_leastresponsetime => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_per_host => {
    order => ++$order,
    test_class => [qw(forking mod_ifsession reverse)],
  },

  proxy_reverse_config_connect_policy_per_user => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_per_user_by_json => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_per_user_no_fallback_issue148 => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_per_group => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_connect_policy_per_group_by_json => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_reverseservers_json => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_reverseservers_json_per_user => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_transfer_rate_retr => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_reverse_proxy_auth_login => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_reverse_proxy_auth_login_extra_user => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_reverse_proxy_auth_login_extra_pass => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_reverse_proxy_auth_login_failed_bad_passwd => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_direct_data_transfers_port => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_direct_data_transfers_port_failed => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_direct_data_transfers_list_failed => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_config_use_direct_data_transfers_pasv => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_list_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_list_deny_user => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_list_deny_group => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_mlsd_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_retr_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_stor_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_read_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_write_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_limit_dirs_deny_all => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # TransferLog entries (binary/ascii, upload/download, complete/aborted)
  # Note that TransferLog, as supported by mod_proxy, CANNOT have the absolute
  # path of the file transferred; we can only know path as requested by
  # the client.

  proxy_reverse_xferlog_retr_ascii_ok => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_xferlog_retr_ascii_chrooted_ok => {
    order => ++$order,
    test_class => [qw(forking reverse rootprivs)],
  },

  proxy_reverse_xferlog_retr_binary_ok => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_xferlog_stor_ascii_ok => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_xferlog_stor_binary_ok => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # ExtendedLog entries.  The most affected will be %D/%d and %F/%f.
  proxy_reverse_extlog_retr_var_F_f => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_extlog_stor_var_F_f => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  proxy_reverse_extlog_list_var_D_d => {
    order => ++$order,
    test_class => [qw(forking reverse)],
  },

  # LastLog?  WtmpLog?

  # HiddenStore? (should have no effect)
  # TransferPriority?

  proxy_reverse_proxy_protocol_v1_ipv4 => {
    order => ++$order,
    test_class => [qw(forking mod_proxy_protocol reverse)],
  },

  proxy_reverse_proxy_protocol_v1_ipv6 => {
    order => ++$order,
    test_class => [qw(feature_ipv6 forking mod_proxy_protocol reverse)],
  },

  proxy_reverse_proxy_protocol_v2_ipv4 => {
    order => ++$order,
    test_class => [qw(forking mod_proxy_protocol reverse)],
  },

  proxy_reverse_proxy_protocol_v2_ipv6 => {
    order => ++$order,
    test_class => [qw(feature_ipv6 forking mod_proxy_protocol reverse)],
  },

  # proxy_reverse_proxy_protocol_v1_ipv6_useipv6_off
  # proxy_reverse_proxy_protocol_v1_unknown
  # proxy_reverse_proxy_protocol_v2_ipv6_useipv6_off
  # proxy_reverse_proxy_protocol_v2_unknown

  proxy_forward_connect => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_connect_failed_timeout => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_after_host => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_extra_user => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_extra_pass => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_ipv6_dst_addr => {
    order => ++$order,
    test_class => [qw(feature_ipv6 forking forward)],
  },

  proxy_forward_noproxyauth_login_netftp_fw_type_1 => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_failed_bad_dst_addr => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_failed_proxy_dst_addr => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_failed_non2xx => {
    order => ++$order,
    test_class => [qw(forking forward mod_wrap2 mod_wrap2_file)],
  },

  proxy_forward_noproxyauth_login_failed_login_limit => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_failed_bad_sequence => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_noproxyauth_login_failed_bad_dst_passwd => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_login_feat_first => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_list_pasv => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_list_port => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_epsv => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_eprt_ipv4 => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_eprt_ipv6 => {
    order => ++$order,
    test_class => [qw(feature_ipv6 forking forward)],
  },

  proxy_forward_retr_port => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_stor_pasv => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_extra_user => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_extra_pass => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_user_incl_at_symbol => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  # Note: The following test is disabled because Net::FTP has a bug in the
  # handling of a FTP_FIREWALL_TYPE=2.  Specifically, in its login() method,
  # it does not properly construct the $fwuser variable unless there is a
  # ~/.netrc file -- and such a file cannot be used for tests like this.
  #
  # proxy_forward_userwithproxyauth_login_netftp_fw_type_2

  proxy_forward_userwithproxyauth_login_failed_bad_dst_addr => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_failed_non2xx => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_failed_limit_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_failed_bad_sequence => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_failed_bad_proxy_passwd => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_login_failed_bad_dst_passwd => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_userwithproxyauth_bad_sequence_no_dst_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_extra_user => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_extra_pass => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_user_incl_at_symbol => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  # Note: The following test is disabled because Net::FTP has a bug in the
  # handling of a FTP_FIREWALL_TYPE=6.  Specifically, in its login() method,
  # it does not properly construct the $fwuser variable unless there is a
  # ~/.netrc file -- and such a file cannot be used for tests like this.
  #
  # proxy_forward_proxyuserwithproxyauth_login_netftp_fw_type6

  proxy_forward_proxyuserwithproxyauth_login_failed_bad_dst_addr => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_failed_non2xx => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_failed_limit_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_failed_bad_sequence => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_failed_bad_proxy_passwd => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_login_failed_bad_dst_passwd => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_proxyuserwithproxyauth_bad_sequence_no_dst_login => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  # proxy_forward_config_displayconnect

  proxy_forward_config_forward_to => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_config_forward_to_negated => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_config_use_direct_data_transfers_port => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  proxy_forward_config_use_direct_data_transfers_pasv => {
    order => ++$order,
    test_class => [qw(forking forward)],
  },

  # proxy_forward_config_timeoutlogin_frontend
  # proxy_forward_config_timeoutlogin_backend
  # proxy_forward_config_maxloginattempts (frontend or backend?)
  # proxy_forward_xferlog_retr_ascii_ok
  # proxy_forward_xferlog_retr_binary_ok
  # proxy_forward_xferlog_stor_ascii_ok
  # proxy_forward_xferlog_stor_binary_ok
  # proxy_forward_extlog_retr_var_F_f
  # proxy_forward_extlog_stor_var_F_f
  # proxy_forward_extlog_list_var_D_d

  # XXX TODO Issue #21
  # proxy_forward_config_directorylistpolicy_client
  # proxy_forward_config_directorylistpolicy_list_unix
  # proxy_forward_config_directorylistpolicy_list_windows
};

sub new {
  return shift()->SUPER::new(@_);
}

sub list_tests {
  return testsuite_get_runnable_tests($TESTS);
}

sub config_hash2array {
  my $hash = shift;

  my $array = [];

  foreach my $key (keys(%$hash)) {
    push(@$array, "$key $hash->{$key}\n");
  }

  return $array;
}

sub get_reverse_proxy_config {
  my $tmpdir = shift;
  my $log_file = shift;
  my $vhost_port = shift;

  my $table_dir = File::Spec->rel2abs("$tmpdir/var/proxy");

  my $config = {
    ProxyEngine => 'on',
    ProxyLog => $log_file,
    ProxyReverseServers => "ftp://127.0.0.1:$vhost_port",
    ProxyRole => 'reverse',
    ProxyTables => $table_dir,
  };

  return $config;
}

sub get_forward_proxy_config {
  my $tmpdir = shift;
  my $log_file = shift;
  my $vhost_port = shift;

  my $table_dir = File::Spec->rel2abs("$tmpdir/var/proxy");

  my $config = {
    ProxyEngine => 'on',
    ProxyLog => $log_file,
    ProxyRole => 'forward',
    ProxyTables => $table_dir,
    ProxyTimeoutConnect => '1sec',

    Class => {
      'forward-proxy' => {
        From => '127.0.0.1',
        ProxyForwardEnabled => 'on',
      },
    },
  };

  return $config;
}

sub ftp_list {
  my $self = shift;
  my $client = shift;

  my $conn = $client->list_raw();
  unless ($conn) {
    die("Failed to LIST: " . $client->response_code() . ' ' .
      $client->response_msg());
  }

  my $buf;
  $conn->read($buf, 8192, 10);
  eval { $conn->close() };

  my $resp_code = $client->response_code();
  my $resp_msg = $client->response_msg();
  $self->assert_transfer_ok($resp_code, $resp_msg);

  ($resp_code, $resp_msg) = $client->quit();

  my $expected = 221;
  $self->assert($expected == $resp_code,
    test_msg("Expected response code $expected, got $resp_code"));

  $expected = 'Goodbye.';
  $self->assert($expected eq $resp_msg,
    test_msg("Expected response message '$expected', got '$resp_msg'"));

  1;
}

sub get_server_pid {
  my $pid_file = shift;

  my $pid;
  if (open(my $fh, "< $pid_file")) {
    $pid = <$fh>;
    chomp($pid);
    close($fh);

  } else {
    croak("Can't read $pid_file: $!");
  }

  return $pid;
}

sub server_open_fds {
  my $pid_file = shift;

  my $pid = get_server_pid($pid_file);

  my $proc_dir = "/proc/$pid/fd";
  if (opendir(my $dirh, $proc_dir)) {
    my $count = 0;

    # Only count entries whose names are numbers
    while (my $dent = readdir($dirh)) {
      if ($dent =~ /^\d+$/) {
        $count++;
      }
    }

    closedir($dirh);
    return $count;

  } else {
    croak("Can't open directory '$proc_dir': $!");
  }
}

sub proxy_sighup {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:10 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Start the server
  server_start($setup->{config_file});
  sleep(1);

  # Use proc(5) filesystem to count the number of open fds in the daemon
  my $orig_nfds = server_open_fds($setup->{pid_file});
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Found $orig_nfds open fds after server startup\n";
  }

  # Restart the server
  server_restart($setup->{pid_file});
  sleep(1);

  # Count the open fds again, make sure we haven't leaked any
  my $restart_nfds = server_open_fds($setup->{pid_file});
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Found $restart_nfds open fds after server restart #1\n";
  }

  $self->assert($orig_nfds == $restart_nfds,
    test_msg("Expected $orig_nfds open fds, found $restart_nfds"));

  # Restart the server
  server_restart($setup->{pid_file});
  sleep(1);

  # And count the open fds one more time, to make doubly sure we are not
  # leaking fds.
  $restart_nfds = server_open_fds($setup->{pid_file});
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Found $restart_nfds open fds after server restart #2\n";
  }

  $self->assert($orig_nfds == $restart_nfds,
    test_msg("Expected $orig_nfds open fds, found $restart_nfds"));

  # Stop server
  server_stop($setup->{pid_file});
  unlink($setup->{log_file});
}

sub proxy_reverse_connect {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy.reverse:20 proxy.reverse.db:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $client->quit();

      my $expected;

      $expected = 220;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Real Server';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_connect_failed_bad_dst_addr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyReverseServers} = 'ftp://1.2.3.4:5678';
  $proxy_config->{ProxyRetryCount} = 1;
  $proxy_config->{ProxyTimeoutConnect} = '1s';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      eval { ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1) };
      unless ($@) {
        die("Unexpectedly connected successfully");
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_connect_failed_non2xx {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $allow_file = File::Spec->rel2abs("$tmpdir/wrap2.allow");
  if (open(my $fh, "> $allow_file")) {
    unless (close($fh)) {
      die("Can't write $allow_file: $!");
    }

  } else {
    die("Can't open $allow_file: $!");
  }

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <IfModule mod_wrap2_file.c>
    WrapEngine on
    WrapLog $log_file
    WrapTables file:$allow_file builtin:all
    WrapOptions CheckOnConnect
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      eval { ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1) };
      unless ($@) {
        die("Unexpectedly connected successfully");
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_connect_failed_timeout {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $dst_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  my $listening = IO::Socket::INET->new(
    LocalHost => '127.0.0.1',
    LocalPort => $dst_port,
    Proto => 'tcp',
    Type => SOCK_STREAM,
    Listen => 5,
    ReuseAddr => 1,
    ReusePort => 1,
  );

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$dst_port";
  $proxy_config->{ProxyRetryCount} = 1;
  $proxy_config->{ProxyTimeoutConnect} = '1s';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $start = [gettimeofday()];
      eval { ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1) };
      my $elapsed = tv_interval($start);
      unless ($@) {
        die("Connection to 127.0.0.1:$port succeeded unexpectedly");
      }

      $self->assert($elapsed < 4,
        test_msg("ProxyTimeoutConnect 1 not honored (elapsed $elapsed)"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  eval { $listening->close() };

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_login_roundrobin_after_host {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $host = 'localhost';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 binding:20 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    DefaultServer => 'on',
    ServerName => '"Default Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    my $tables_dir = File::Spec->rel2abs("$tmpdir/var/proxy");

    print $fh <<EOC;
<IfModule mod_proxy.c>
  ProxyTables $tables_dir
</IfModule>

<VirtualHost 127.0.0.1>
  Port $port
  ServerAlias $host
  ServerName "Namebased Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  <IfModule mod_delay.c>
    DelayEngine off
  </IfModule>

  <IfModule mod_proxy.c>
    ProxyEngine on
    ProxyLog $log_file
    ProxyReverseServers ftp://127.0.0.1:$vhost_port
    ProxyRole reverse
  </IfModule>
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      my ($resp_code, $resp_msg) = $client->host($host);

      my $expected = 220;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      # The default reverse connect policy is RoundRobin; this means
      # that the backend server is selected at connect time.  By sending HOST,
      # we change that selected backend server, and thus we should get the
      # "real" backend server banner.
      $expected = 'Real Server';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_login_peruser_after_host {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $host = 'localhost';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 binding:20 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    DefaultServer => 'on',
    ServerName => '"Default Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    my $tables_dir = File::Spec->rel2abs("$tmpdir/var/proxy");
    my $vhost_port2 = $vhost_port - 7;

    print $fh <<EOC;
<IfModule mod_proxy.c>
  ProxyTables $tables_dir
</IfModule>

<VirtualHost 127.0.0.1>
  Port $port
  ServerAlias $host
  ServerName "Namebased Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  <IfModule mod_delay.c>
    DelayEngine off
  </IfModule>

  <IfModule mod_proxy.c>
    ProxyEngine on
    ProxyLog $log_file
    ProxyTimeoutConnect 1sec
    ProxyRole reverse
    ProxyReverseConnectPolicy PerUser
    ProxyReverseServers ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port2
  </IfModule>
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      my ($resp_code, $resp_msg) = $client->host($host);

      my $expected = 220;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      # Our reverse connect policy is PerUser; this means that the backend
      # server is selected at USER time.  By sending HOST, we do NOT change
      # the selected backend server, and thus we should get the namebased
      # server banner.
      $expected = 'Namebased';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_login_extra_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});

      # Note that this changed due to Bug#4217
      my ($resp_code, $resp_msg) = $client->user($setup->{user});

      my $expected = 230;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "User $setup->{user} logged in";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got $resp_msg"));

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_login_extra_pass {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      eval { $client->pass($passwd) };
      unless ($@) {
        die("Extra PASS succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 503;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'You are already logged in';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got $resp_msg"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_login_failed {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      eval { $client->login($user, 'foobar') };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_login_chrooted {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    # For dropping privs
    User => 'nobody',
    Group => 'nobody',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_login_no_backend_proxy_protocol {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseProxyProtocol';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(2);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_feat {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      $client->feat();
      my $resp_code = $client->response_code();
      my $resp_msgs = $client->response_msgs();

      my $expected = 211;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Features:';
      $self->assert($expected eq $resp_msgs->[0],
        test_msg("Expected first response message '$expected', got '$resp_msgs->[0]'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_abort {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});

      $client->quote('ABOR');
      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 226;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Abort successful';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_list_pasv_enoent {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $enoent_dir = '/foo/bar/baz';

      eval { $client->list($enoent_dir) };
      unless ($@) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 450;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "$enoent_dir: No such file or directory";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_list_port_enoent {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $enoent_dir = '/foo/bar/baz';
      eval { $client->list($enoent_dir) };
      unless ($@) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 450;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "$enoent_dir: No such file or directory";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_epsv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->epsv();

      my $expected = 229;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = '^Entering Extended Passive Mode \(\|\|\|\d+\|\)';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_eprt_ipv4 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->eprt('|1|127.0.0.1|4856|');

      my $expected;

      $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected $expected, got $resp_code"));

      $expected = "EPRT command successful";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_eprt_ipv6 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->eprt('|2|::ffff:127.0.0.1|4856|');

      my $expected;

      $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected $expected, got $resp_code"));

      $expected = "EPRT command successful";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_retr_pasv_ascii {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('ascii');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      # The length of 'Hello, Proxying World!\n' is 23, but we expect 24
      # here because of the ASCII conversion of the bare LF to a CRLF.
      my $expected = length($test_data) + 1;
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_retr_pasv_binary {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      # The length of 'Hello, Proxying World!\n' is 23, so that is what
      # we expect here; no ASCII conversion to change things.
      my $expected = length($test_data);
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_retr_large_file {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_datalen = (4 * 1024 * 1024);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh 'R' x $test_datalen;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 120;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      while ($conn->read($buf, 32768, 30)) {
        # Delay a little between reads, to try to force mod_proxy to deal
        # with a slow consumer (thus leading to short writes).

        my $sleep_ms = 150;
        my $sleep_usecs = ($sleep_ms * 1000);
        usleep($sleep_usecs);
      }
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      my $expected = $test_datalen;
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_retr_empty_file {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_datalen = 0;
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 120;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      while ($conn->read($buf, 32768, 30)) {
        # Delay a little between reads, to try to force mod_proxy to deal
        # with a slow consumer (thus leading to short writes).

        my $sleep_ms = 150;
        my $sleep_usecs = ($sleep_ms * 1000);
        usleep($sleep_usecs);
      }
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      my $expected = $test_datalen;
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_retr_abort {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $test_datalen = (4 * 1024 * 1024);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh 'R' x $test_datalen;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  my $timeout_idle = 10;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    TimeoutLinger => 1,
    UseIPv6 => 'off',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle
  TimeoutLinger 1

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});
      $client->type('binary');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      eval { $client->quote('ABOR') };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg, 1);

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_stor_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      $self->assert(-f $test_file,
        test_msg("File $test_file does not exist as expected"));

      my $expected = length($test_data);
      my $size = -s $test_file;
      $self->assert($expected == $size,
        test_msg("Expected size $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stor_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      $self->assert(-f $test_file,
        test_msg("File $test_file does not exist as expected"));

      my $expected = length($test_data);
      my $size = -s $test_file;
      $self->assert($expected == $size,
        test_msg("Expected size $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stor_large_file {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_datalen = (4 * 1024 * 1024);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 120;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = 'R' x $test_datalen;
      my $size = $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      my $expected = $test_datalen;
      $self->assert($expected == $size,
        test_msg("Expected sent size $expected, got $size"));

      $self->assert(-f $test_file,
        test_msg("File $test_file does not exist as expected"));

      my $filesize = -s $test_file;
      $self->assert($expected == $filesize,
        test_msg("Expected file size $expected, got $filesize"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stor_empty_file {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_datalen = 0;
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 120;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      $self->assert(-f $test_file,
        test_msg("File $test_file does not exist as expected"));

      my $expected = $test_datalen;
      my $filesize = -s $test_file;
      $self->assert($expected == $filesize,
        test_msg("Expected file size $expected, got $filesize"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stor_pasv_eperm {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_datalen = length($test_data);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      if ($conn) {
        die("STOR succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      $client->quit();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "$test_file: Overwrite permission denied";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stor_port_eperm {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_datalen = length($test_data);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      if ($conn) {
        die("STOR succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      $client->quit();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "$test_file: Overwrite permission denied";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stor_abort {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $test_datalen = (4 * 1024 * 1024);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    TimeoutLinger => 1,
    UseIPv6 => 'off',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle
  TimeoutLinger 1
  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = 'R' x $test_datalen;
      $conn->write($buf, 8192, 30);
      eval { $conn->abort() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg, 1);

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_rest_retr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_datalen = length($test_data);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $rest_len = $test_datalen - 1;
      my ($resp_code, $resp_msg) = $client->rest($rest_len);

      my $expected = 350;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Restarting at $rest_len. Send STORE or RETRIEVE to initiate transfer";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      my $expected = 1;
      $self->assert($expected == $size,
        test_msg("Expected received size $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_rest_stor {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_datalen = length($test_data);
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  AllowOverwrite on
  AllowStoreRestart on
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my $rest_len = $test_datalen;
      my ($resp_code, $resp_msg) = $client->rest($rest_len);

      my $expected = 350;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Restarting at $rest_len. Send STORE or RETRIEVE to initiate transfer";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      my $size = $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      my $expected = 2 * $test_datalen;
      my $size = -s $test_file;
      $self->assert($expected == $size,
        test_msg("Expected file size $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_stat {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  AllowOverwrite on
  AllowStoreRestart on
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->type('binary');

      my ($resp_code, $resp_msg) = $client->stat();

      my $expected = 211;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = ' Connected from 127.0.0.1 (127.0.0.1)';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      ($resp_code, $resp_msg) = $client->stat($config_file);

      $expected = 213;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'proxy\.conf$';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_unknown_cmd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $unknown_cmd = 'FOOBAR';
      eval { $client->quote($unknown_cmd, "BAZ") };
      unless ($@) {
        die("Unknown FTP command '$unknown_cmd' succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 500;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "$unknown_cmd not understood";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_uri_creds_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://$user:$passwd\@127.0.0.1:$vhost_port";

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);

      # Since we have overridden the credentials vi URI, it shouldn't matter
      # what usernames/passwords we use here.
      my $bad_user = 'foo';
      my $bad_pass = 'bar';

      $client->login($bad_user, $bad_pass);

      my $resp_msg = $client->response_msg();
      my $expected = "User $bad_user logged in";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_uri_creds_login_failed_bad_dst_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $bad_user = 'foo';
  my $bad_pass = 'bar';

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://$bad_user:$passwd\@127.0.0.1:$vhost_port";

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      eval { $client->login($bad_user, $bad_pass) };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code(); 
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_uri_creds_login_failed_bad_dst_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $bad_user = 'foo';
  my $bad_pass = 'bar';

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://$user:$bad_pass\@127.0.0.1:$vhost_port";

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      eval { $client->login($bad_user, $bad_pass) };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code(); 
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_uri_creds_login_with_reverse_proxy_auth {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/real.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/real.group");
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $proxy_user = 'proxy';
  my $passwd = 'test';
  my $proxy_passwd = 'proxy';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://$user:$passwd\@127.0.0.1:$vhost_port";
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($proxy_user, $proxy_passwd);

      my $resp_msg = $client->response_msg();
      my $expected = "User $proxy_user logged in";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_passiveports_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $min_port = 49152;
  my $max_port = 49652;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    PassivePorts => "$min_port $max_port",

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->pasv();

      my $expected;
      $expected = 227;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = '^Entering Passive Mode \(\d+,\d+,\d+,\d+,\d+,\d+\)';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Make sure that the chosen port is within our configured PassivePorts
      # range.
      if ($resp_msg =~ /^Entering Passive Mode \(\d+,\d+,\d+,\d+,(\d+),(\d+)\)/) {
        my $p1 = $1;
        my $p2 = $2;

        my $port = ($p1 * 256) + $p2;
        $self->assert($port >= $min_port && $port <= $max_port,
          test_msg("Selected port $port not within PassivePorts $min_port $max_port"));

      } else {
        die("PASV response message '$resp_msg' not matched");
      }

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_passiveports_epsv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $min_port = 49152;
  my $max_port = 49652;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    PassivePorts => "$min_port $max_port",

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->epsv();

      my $expected;
      $expected = 229;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = '^Entering Extended Passive Mode \(\|\|\|\d+\|\)';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Make sure that the chosen port is within our configured PassivePorts
      # range.
      if ($resp_msg =~ /^Entering Extended Passive Mode \(\|\|\|(\d+)\|\)/) {
        my $port = $1;
        $self->assert($port >= $min_port && $port <= $max_port,
          test_msg("Selected port $port not within PassivePorts $min_port $max_port"));

      } else {
        die("EPSV response message '$resp_msg' not matched");
      }

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_masqueradeaddress {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $masq_addr = '1.2.3.4';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    MasqueradeAddress => $masq_addr,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->pasv();

      my $expected;
      $expected = 227;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = '^Entering Passive Mode \(\d+,\d+,\d+,\d+,\d+,\d+\)';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Make sure that the reported address is our MasqueradeAddress.
      if ($resp_msg =~ /^Entering Passive Mode \((\d+,\d+,\d+,\d+),\d+,\d+\)/) {
        my $addr = $1;
        $addr =~ s/,/./g;

        $self->assert($addr eq $masq_addr,
          test_msg("Expected address '$masq_addr', got '$addr'"));

      } else {
        die("PASV response message '$resp_msg' not matched");
      }

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_allowforeignaddress_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    AllowForeignAddress => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->port('1,2,3,4,192,168');

      my $expected;
      $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'PORT command successful';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_allowforeignaddress_eprt {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    AllowForeignAddress => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my ($resp_code, $resp_msg) = $client->eprt('|1|1.2.3.4|49152|');

      my $expected;
      $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'EPRT command successful';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      ($resp_code, $resp_msg) = $client->quit();

      $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutidle_frontend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutidle = 4;
  my $frontend_timeout_delay = $frontend_timeoutidle + 2;
  my $backend_timeoutidle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutIdle => $frontend_timeoutidle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $backend_timeoutidle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      # Wait for more than the frontend TimeoutIdle period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutIdle\n";
      }
      sleep($frontend_timeout_delay);

      eval { $client->noop() };
      unless ($@) {
        die("NOOP succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;
      $expected = 421;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Idle timeout ($frontend_timeoutidle seconds): closing control connection";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $backend_timeoutidle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutidle_backend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutidle = 10;
  my $frontend_timeout_delay = $frontend_timeoutidle - 2;
  my $backend_timeoutidle = 4;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutIdle => $frontend_timeoutidle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $backend_timeoutidle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      # Wait for more than the frontend TimeoutIdle period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutIdle\n";
      }
      sleep($frontend_timeout_delay);

      eval { $client->noop() };
      unless ($@) {
        die("NOOP succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;
      $expected = 421;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Idle timeout ($backend_timeoutidle seconds): closing control connection";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $frontend_timeoutidle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutlogin_frontend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutidle = 10;
  my $frontend_timeoutlogin = 2;
  my $frontend_timeout_delay = $frontend_timeoutlogin + 2;

  my $backend_timeoutidle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutIdle => $frontend_timeoutidle,
    TimeoutLogin => $frontend_timeoutlogin,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $backend_timeoutidle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      # Wait for more than the frontend TimeoutLogin period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutLogin\n";
      }
      sleep($frontend_timeout_delay);

      # Since we've authenticated to the backend, the frontend's TimeoutLogin
      # should not kick in; mod_proxy should have removed it.  Which means
      # that this NOOP should work.
      $client->noop();

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $frontend_timeoutidle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutnoxfer_frontend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutnoxfer = 2;
  my $frontend_timeout_delay = $frontend_timeoutnoxfer + 2;
  my $backend_timeoutnoxfer = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutNoTransfer => $frontend_timeoutnoxfer,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutNoTransfer $backend_timeoutnoxfer

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      # Wait for more than the frontend TimeoutNoTransfer period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutNoTransfer\n";
      }
      sleep($frontend_timeout_delay);

      my $conn = $client->list_raw();
      if ($conn) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;
      $expected = 421;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "No transfer timeout ($frontend_timeoutnoxfer seconds): closing control connection";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $backend_timeoutnoxfer + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutnoxfer_backend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutnoxfer = 10;
  my $frontend_timeout_delay = $frontend_timeoutnoxfer - 2;
  my $backend_timeoutnoxfer = 2;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutNoTransfer => $frontend_timeoutnoxfer,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutNoTransfer $backend_timeoutnoxfer

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      # Wait for more than the frontend TimeoutNoTransfer period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutNoTransfer\n";
      }
      sleep($frontend_timeout_delay);

      my $conn = $client->list_raw();
      if ($conn) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;
      $expected = 421;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "No transfer timeout ($backend_timeoutnoxfer seconds): closing control connection";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $frontend_timeoutnoxfer + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutstalled_frontend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutstalled = 2;
  my $frontend_timeout_delay = $frontend_timeoutstalled + 2;
  my $backend_timeoutstalled = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutStalled => $frontend_timeoutstalled,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutStalled $backend_timeoutstalled

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->stor_raw('test.txt');
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      # Wait for more than the frontend TimeoutStalled period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutStalled\n";
      }
      sleep($frontend_timeout_delay);

      my $buf = "Hello, World!\n";
      $conn->write($buf, length($buf), 25);
      eval { $conn->close() };

      eval { $client->noop() };
      unless ($@) {
        die("NOOP succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      # Perl's Net::Cmd module uses a very non-standard 599 code to indicate
      # that the connection is closed
      $expected = 599;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Connection closed";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $backend_timeoutstalled + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_timeoutstalled_backend {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $frontend_timeoutstalled = 12;
  my $backend_timeoutstalled = 2;
  my $frontend_timeout_delay = $backend_timeoutstalled + 2;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    TimeoutStalled => $frontend_timeoutstalled,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutStalled $backend_timeoutstalled

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->stor_raw('test.txt');
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      # Wait for more than the backend TimeoutStalled period
      if ($ENV{TEST_VERBOSE}) {
        print STDOUT " + sleeping for $frontend_timeout_delay secs for TimeoutStalled\n";
      }
      sleep($frontend_timeout_delay);

      my $buf = "Hello, World!\n";
      $conn->write($buf, length($buf), 25);
      eval { $conn->close() };

      eval { $client->noop() };
      unless ($@) {
        die("NOOP succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      # Perl's Net::Cmd module uses a very non-standard 599 code to indicate
      # that the connection is closed
      $expected = 599;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Connection closed";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $frontend_timeoutstalled + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_pasv_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'PASV';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_pasv_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'PASV';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_port_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'PORT';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_port_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'PORT';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_epsv_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'EPSV';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_epsv_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'EPSV';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy.ftp.xfer:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_eprt_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'EPRT';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_eprt_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'EPRT';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_active_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'active';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_active_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'active';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_active_list_eprt_port_fallback {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'active';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <Limit EPRT>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_passive_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'passive';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_passive_list_epsv_pasv_fallback {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'passive';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <Limit EPSV>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_passive_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'passive';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_datatransferpolicy_client {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyDataTransferPolicy} = 'client';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_directorylistpolicy_client {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyDirectoryListPolicy} = 'client';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <IfModule mod_facts.c>
    FactsAdvertise off
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # We have to be careful of the fact that readdir returns directory
      # entries in an unordered fashion.
      my $res = {};
      my $lines = [split(/(\r)?\n/, $buf)];
      $self->assert(scalar(@$lines) > 1,
        test_msg("Expected several MLSD lines, got " . scalar(@$lines)));

      foreach my $line (@$lines) {
        if ($line =~ /^modify=\S+;perm=\S+;type=\S+;unique=\S+;UNIX\.group=\d+;UNIX\.groupname=\S+;UNIX\.mode=\d+;UNIX\.owner=\d+;UNIX\.ownername=\S+; (.*?)$/) {
          $res->{$1} = 1;
        }
      }

      if (scalar(keys(%$res)) == 0) {
        die("Failed to parse MLSD data");
      }

      my $expected = {
        '.' => 1,
        '..' => 1,
        'var' => 1,
        'proxy.conf' => 1,
        'proxy.group' => 1,
        'proxy.passwd' => 1,
        'proxy.pid' => 1,
        'proxy.scoreboard' => 1,
        'proxy.scoreboard.lck' => 1,
      };

      my $ok = 1;
      my $mismatch;
      foreach my $name (keys(%$res)) {
        unless (defined($expected->{$name})) {
          $mismatch = $name;
          $ok = 0;
          last;
        }
      }

      unless ($ok) {
        die("Unexpected name '$mismatch' appeared in MLSD data")
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_directorylistpolicy_list_unix {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  # Explicitly provide these IDs, so that the generated AuthUserFile,
  # AuthGroupFile entries match our effective IDs, and thus can match up
  # IDs to names.  This means that "LIST -al" provides textual owner names,
  # rather than IDs.
  my $uid = $<;
  my $gid = (split(/\s+/, $)))[0];
  my $setup = test_setup($tmpdir, 'proxy', undef, undef, undef, $uid, $gid);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyDirectoryListPolicy} = 'LIST';

  my $timeout_idle = 10;

  my $test_file = File::Spec->rel2abs("$tmpdir/test.dat");
  if (open(my $fh, "> $test_file")) {
    print $fh "Hello, World!\n";
    unless (close($fh)) {
      die("Can't write $test_file: $!");
    }

  } else {
    die("Can't open $test_file: $!");
  }

  # Make the timestamps on our file older than 6 months, for the year/HH:MM
  # code path.
  my $ts = time() - (9 * 30 * 24 * 60 * 60);
  unless (utime($ts, $ts, $test_file)) {
    die("Can't change times on $test_file: $!");
  }

  my $sub_dir = File::Spec->rel2abs("$tmpdir/sub.d");
  mkpath($sub_dir);

  my $cwd = getcwd();
  unless (chdir($tmpdir)) {
    die("Can't chdir to $tmpdir: $!");
  }

  unless (symlink('./test.dat', 'test.lnk')) {
    die("Can't symlink './test.dat' to 'test.lnk': $!");
  }

  unless (symlink('./sub.d', 'subd.lnk')) {
    die("Can't symlink './sub.d' to 'subd.lnk': $!");
  }

  unless (chdir($cwd)) {
    die("Can't chdir to $cwd: $!");
  }

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:30 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.dirlist:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <IfModule mod_facts.c>
    FactsAdvertise off
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # We have to be careful of the fact that readdir returns directory
      # entries in an unordered fashion.
      my $res = {};
      my $lines = [split(/(\r)?\n/, $buf)];
      $self->assert(scalar(@$lines) > 1,
        test_msg("Expected several MLSD lines, got " . scalar(@$lines)));

      foreach my $line (@$lines) {
        if ($line =~ /^modify=\S+;perm=\S+;type=\S+;UNIX\.groupname=\S+;UNIX\.mode=\d+;UNIX\.ownername=\S+; (.*?)$/) {
          $res->{$1} = 1;
        }
      }

      if (scalar(keys(%$res)) == 0) {
        die("Failed to parse MLSD data");
      }

      my $expected = {
        '.' => 1,
        '..' => 1,
        'sub.d' => 1,
        'subd.lnk' => 1,
        'test.dat' => 1,
        'test.lnk' => 1,
        'var' => 1,
        'proxy.conf' => 1,
        'proxy.group' => 1,
        'proxy.passwd' => 1,
        'proxy.pid' => 1,
        'proxy.scoreboard' => 1,
        'proxy.scoreboard.lck' => 1,
      };

      my $ok = 1;
      my $mismatch;
      foreach my $name (keys(%$res)) {
        unless (defined($expected->{$name})) {
          $mismatch = $name;
          $ok = 0;
          last;
        }
      }

      unless ($ok) {
        die("Unexpected name '$mismatch' appeared in MLSD data")
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_directorylistpolicy_list_unix_use_slink {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  # Explicitly provide these IDs, so that the generated AuthUserFile,
  # AuthGroupFile entries match our effective IDs, and thus can match up
  # IDs to names.  This means that "LIST -al" provides textual owner names,
  # rather than IDs.
  my $uid = $<;
  my $gid = (split(/\s+/, $)))[0];
  my $setup = test_setup($tmpdir, 'proxy', undef, undef, undef, $uid, $gid);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  # Use the UseSlink option as well.
  $proxy_config->{ProxyDirectoryListPolicy} = 'LIST UseSlink';

  my $timeout_idle = 10;

  my $test_file = File::Spec->rel2abs("$tmpdir/test.dat");
  if (open(my $fh, "> $test_file")) {
    print $fh "Hello, World!\n";
    unless (close($fh)) {
      die("Can't write $test_file: $!");
    }

  } else {
    die("Can't open $test_file: $!");
  }

  # Make the timestamps on our file older than 6 months, for the year/HH:MM
  # code path.
  my $ts = time() - (9 * 30 * 24 * 60 * 60);
  unless (utime($ts, $ts, $test_file)) {
    die("Can't change times on $test_file: $!");
  }

  my $sub_dir = File::Spec->rel2abs("$tmpdir/sub.d");
  mkpath($sub_dir);

  my $cwd = getcwd();
  unless (chdir($tmpdir)) {
    die("Can't chdir to $tmpdir: $!");
  }

  unless (symlink('./test.dat', 'test.lnk')) {
    die("Can't symlink './test.dat' to 'test.lnk': $!");
  }

  unless (symlink('./sub.d', 'subd.lnk')) {
    die("Can't symlink './sub.d' to 'subd.lnk': $!");
  }

  unless (chdir($cwd)) {
    die("Can't chdir to $cwd: $!");
  }

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:30 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.dirlist:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <IfModule mod_facts.c>
    FactsAdvertise off
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      my $saw_slink = 0;

      # We have to be careful of the fact that readdir returns directory
      # entries in an unordered fashion.
      my $res = {};
      my $lines = [split(/(\r)?\n/, $buf)];
      $self->assert(scalar(@$lines) > 1,
        test_msg("Expected several MLSD lines, got " . scalar(@$lines)));

      foreach my $line (@$lines) {
        if ($line =~ /^modify=\S+;perm=\S+;type=\S+;UNIX\.groupname=\S+;UNIX\.mode=\d+;UNIX\.ownername=\S+; (.*?)$/) {
          $res->{$1} = 1;
        }

        if ($line =~ /type=OS.unix=slink:/) {
          $saw_slink = 1;
        }
      }

      if (scalar(keys(%$res)) == 0) {
        die("Failed to parse MLSD data");
      }

      $self->assert($saw_slink,
        test_msg("Did not see 'OS.unix=slink' as expected"));

      my $expected = {
        '.' => 1,
        '..' => 1,
        'sub.d' => 1,
        'subd.lnk' => 1,
        'test.dat' => 1,
        'test.lnk' => 1,
        'var' => 1,
        'proxy.conf' => 1,
        'proxy.group' => 1,
        'proxy.passwd' => 1,
        'proxy.pid' => 1,
        'proxy.scoreboard' => 1,
        'proxy.scoreboard.lck' => 1,
      };

      my $ok = 1;
      my $mismatch;
      foreach my $name (keys(%$res)) {
        unless (defined($expected->{$name})) {
          $mismatch = $name;
          $ok = 0;
          last;
        }
      }

      unless ($ok) {
        die("Unexpected name '$mismatch' appeared in MLSD data")
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_directorylistpolicy_list_unix_wide_dir {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  # Explicitly provide these IDs, so that the generated AuthUserFile,
  # AuthGroupFile entries match our effective IDs, and thus can match up
  # IDs to names.  This means that "LIST -al" provides textual owner names,
  # rather than IDs.
  my $uid = $<;
  my $gid = (split(/\s+/, $)))[0];
  my $setup = test_setup($tmpdir, 'proxy', undef, undef, undef, $uid, $gid);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyDirectoryListPolicy} = 'LIST';

  # For this test, we need to create many files to be listed.
  my $test_file_prefix = File::Spec->rel2abs($tmpdir);

  my $count = 1000;
  print STDOUT "# Creating $count files in $tmpdir\n";
  for (my $i = 1; $i <= $count; $i++) {
    my $test_file = 'test_' . sprintf("%07s", $i);
    my $test_path = "$test_file_prefix/$test_file";

    if (open(my $fh, "> $test_path")) {
      close($fh);

    } else {
      die("Can't open $test_path: $!");
    }

    if ($i % 1000 == 0) {
      print STDOUT "# Created file $test_file\n";
    }
  }

  my $timeout_idle = 30;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:30 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:30 proxy.ftp.dirlist:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <IfModule mod_facts.c>
    FactsAdvertise off
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf = '';
      my $tmp;
      while ($conn->read($tmp, 8192, 30)) {
        $buf .= $tmp;
      }
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      my $saw_slink = 0;

      # We have to be careful of the fact that readdir returns directory
      # entries in an unordered fashion.
      my $res = {};
      my $lines = [split(/(\r)?\n/, $buf)];
      $self->assert(scalar(@$lines) > 1,
        test_msg("Expected several MLSD lines, got " . scalar(@$lines)));

      foreach my $line (@$lines) {
        if ($line =~ /^modify=\S+;perm=\S+;type=\S+;UNIX\.groupname=\S+;UNIX\.mode=\d+;UNIX\.ownername=\S+; (.*?)$/) {
          $res->{$1} = 1;
        }

        if ($line =~ /type=OS.unix=slink:/) {
          $saw_slink = 1;
        }
      }

      if (scalar(keys(%$res)) == 0) {
        die("Failed to parse MLSD data");
      }

      my $expected = {
        '.' => 1,
        '..' => 1,
        'sub.d' => 1,
        'subd.lnk' => 1,
        'test.dat' => 1,
        'test.lnk' => 1,
        'var' => 1,
        'proxy.conf' => 1,
        'proxy.group' => 1,
        'proxy.passwd' => 1,
        'proxy.pid' => 1,
        'proxy.scoreboard' => 1,
        'proxy.scoreboard.lck' => 1,
      };

      my $ok = 1;
      my $mismatch;
      foreach my $name (keys(%$res)) {
        next if $name =~ /^test_/;

        unless (defined($expected->{$name})) {
          $mismatch = $name;
          $ok = 0;
          last;
        }
      }

      unless ($ok) {
        die("Unexpected name '$mismatch' appeared in MLSD data")
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_directorylistpolicy_list_windows {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  # Explicitly provide these IDs, so that the generated AuthUserFile,
  # AuthGroupFile entries match our effective IDs, and thus can match up
  # IDs to names.  This means that "LIST -al" provides textual owner names,
  # rather than IDs.
  my $uid = $<;
  my $gid = (split(/\s+/, $)))[0];
  my $setup = test_setup($tmpdir, 'proxy', undef, undef, undef, $uid, $gid);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyDirectoryListPolicy} = 'LIST';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.dirlist:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <IfModule mod_facts.c>
    FactsAdvertise off
  </IfModule>

  # Emit Windows-style directory listing data
  ListStyle Windows
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # We have to be careful of the fact that readdir returns directory
      # entries in an unordered fashion.
      my $res = {};
      my $lines = [split(/(\r)?\n/, $buf)];
      $self->assert(scalar(@$lines) > 1,
        test_msg("Expected several MLSD lines, got " . scalar(@$lines)));

      foreach my $line (@$lines) {
        if ($line =~ /^modify=\S+;(size=\d+;)?type=\S+; (.*?)$/) {
          $res->{$2} = 1;
        }
      }

      if (scalar(keys(%$res)) == 0) {
        die("Failed to parse MLSD data");
      }

      my $expected = {
        '.' => 1,
        '..' => 1,
        'var' => 1,
        'proxy.conf' => 1,
        'proxy.group' => 1,
        'proxy.passwd' => 1,
        'proxy.pid' => 1,
        'proxy.scoreboard' => 1,
        'proxy.scoreboard.lck' => 1,
      };

      my $ok = 1;
      my $mismatch;
      foreach my $name (keys(%$res)) {
        unless (defined($expected->{$name})) {
          $mismatch = $name;
          $ok = 0;
          last;
        }
      }

      unless ($ok) {
        die("Unexpected name '$mismatch' appeared in MLSD data")
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_directorylistpolicy_list_backend_error {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyDirectoryListPolicy} = 'LIST';

  my $timeout_idle = 10;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.dirlist:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off

  <IfModule mod_facts.c>
    FactsAdvertise off
  </IfModule>

  # Block the LIST command, to test mod_proxy error handling
  <Limit DIRS>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $self->assert($buf eq '',
        test_msg("Expected empty directory listing, got '$buf'"));
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_directorylistpolicy_list_opts_mlst {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  # Explicitly provide these IDs, so that the generated AuthUserFile,
  # AuthGroupFile entries match our effective IDs, and thus can match up
  # IDs to names.  This means that "LIST -al" provides textual owner names,
  # rather than IDs.
  my $uid = $<;
  my $gid = (split(/\s+/, $)))[0];
  my $setup = test_setup($tmpdir, 'proxy', undef, undef, undef, $uid, $gid);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyDirectoryListPolicy} = 'LIST';

  my $timeout_idle = 10;

  my $test_file = File::Spec->rel2abs("$tmpdir/test.dat");
  if (open(my $fh, "> $test_file")) {
    print $fh "Hello, World!\n";
    unless (close($fh)) {
      die("Can't write $test_file: $!");
    }

  } else {
    die("Can't open $test_file: $!");
  }

  # Make the timestamps on our file older than 6 months, for the year/HH:MM
  # code path.
  my $ts = time() - (9 * 30 * 24 * 60 * 60);
  unless (utime($ts, $ts, $test_file)) {
    die("Can't change times on $test_file: $!");
  }

  my $sub_dir = File::Spec->rel2abs("$tmpdir/sub.d");
  mkpath($sub_dir);

  my $cwd = getcwd();
  unless (chdir($tmpdir)) {
    die("Can't chdir to $tmpdir: $!");
  }

  unless (symlink('./test.dat', 'test.lnk')) {
    die("Can't symlink './test.dat' to 'test.lnk': $!");
  }

  unless (symlink('./sub.d', 'subd.lnk')) {
    die("Can't symlink './sub.d' to 'subd.lnk': $!");
  }

  unless (chdir($cwd)) {
    die("Can't chdir to $cwd: $!");
  }

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:30 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.dirlist:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $setup->{user},
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $opts_args = 'MLST modify;size;type;';
      my ($resp_code, $resp_msg) = $client->opts($opts_args);

      my $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'MLST OPTS modify;size;type;';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      my $conn = $client->mlsd_raw();
      unless ($conn) {
        die("Failed to MLSD: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "# Response:\n$buf\n";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # We have to be careful of the fact that readdir returns directory
      # entries in an unordered fashion.
      my $res = {};
      my $lines = [split(/(\r)?\n/, $buf)];
      $self->assert(scalar(@$lines) > 1,
        test_msg("Expected several MLSD lines, got " . scalar(@$lines)));

      foreach my $line (@$lines) {
        if ($line =~ /^modify=\S+;size=\d+;type=\S+; (.*?)$/) {
          $res->{$1} = 1;
        }
      }

      if (scalar(keys(%$res)) == 0) {
        die("Failed to parse MLSD data");
      }

      my $expected = {
        '.' => 1,
        '..' => 1,
        'sub.d' => 1,
        'subd.lnk' => 1,
        'test.dat' => 1,
        'test.lnk' => 1,
        'var' => 1,
        'proxy.conf' => 1,
        'proxy.group' => 1,
        'proxy.passwd' => 1,
        'proxy.pid' => 1,
        'proxy.scoreboard' => 1,
        'proxy.scoreboard.lck' => 1,
      };

      my $ok = 1;
      my $mismatch;
      foreach my $name (keys(%$res)) {
        unless (defined($expected->{$name})) {
          $mismatch = $name;
          $ok = 0;
          last;
        }
      }

      unless ($ok) {
        die("Unexpected name '$mismatch' appeared in MLSD data")
      }
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_connect_policy_random {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseConnectPolicy} = 'Random';

  # For now, we cheat and simply repeat the same vhost three times
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port";
  my $nbackends = 3;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_shuffle {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseConnectPolicy} = 'Shuffle';

  # For now, we cheat and simply repeat the same vhost three times
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port";
  my $nbackends = 3;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_roundrobin {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseConnectPolicy} = 'RoundRobin';

  # For now, we cheat and simply repeat the same vhost three times
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port";
  my $nbackends = 3;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_roundrobin_issue132 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseConnectPolicy} = 'RoundRobin';

  # For now, we cheat and simply repeat the same vhost three times.  Only
  # the first connect should succeed; the next two should fail, if we are doing
  # RoundRobin properly (Issue #132).
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:4321 ftp://127.0.0.1:5432";
  my $nbackends = 3;

  # Ensure we only retry once
  $proxy_config->{ProxyRetryCount} = 1;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.reverse.db:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(2);

      # First session should succeed.
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($user, $passwd);
      ftp_list($self, $client);

      # Next session should fail.
      eval { ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1) };
      unless ($@) {
        die("Second connect succeeded unexpectedly");
      }

      my $err = $@;
      my $expected = 'Unable to connect to .*: Timed out';
      $self->assert(qr/$expected/, $err,
        test_msg("Expected error '$expected', got '$err'"));
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);
  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_leastconns {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseConnectPolicy} = 'LeastConns';

  # For now, we cheat and simply repeat the same vhost three times
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port";
  my $nbackends = 3;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_leastresponsetime {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseConnectPolicy} = 'LeastResponseTime';

  # For now, we cheat and simply repeat the same vhost three times
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port";
  my $nbackends = 3;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_per_host {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;
  my $vhost_port2 = $vhost_port - 7;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyTimeoutConnect} = '1sec';
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerHost';
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port2";
  my $nbackends = 2;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 0);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_per_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;
  my $vhost_port2 = $vhost_port - 7;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyTimeoutConnect} = '1sec';
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerUser';
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port2";
  my $nbackends = 2;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 0);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_per_user_by_json {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;
  my $vhost_port2 = $vhost_port - 7;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyTimeoutConnect} = '1sec';
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerUser';
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port";

  my $user_path = File::Spec->rel2abs("$tmpdir/$user-servers.json");
  if (open(my $fh, "> $user_path")) {
    print $fh "[ \"ftp://127.0.0.1:$vhost_port2\" ]\n";
    unless (close($fh)) {
      die("Can't write $user_path: $!");
    }

  } else {
    die("Can't open $user_path: $!");
  }

  my $uservar_path = File::Spec->rel2abs("$tmpdir/%U-servers.json");

  # Since we need multiple ProxyReverseServers directives, convert this
  # hashref into an arrayref.
  $proxy_config = config_hash2array($proxy_config);

  push(@$proxy_config, "ProxyReverseServers file:$uservar_path");
  my $nbackends = 1;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 0);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_per_user_no_fallback_issue148 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;
  my $vhost_port2 = $vhost_port - 7;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyTimeoutConnect} = '1sec';
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerUser';

  # For this issue, we want NO fallback/default servers.
  delete($proxy_config->{ProxyReverseServers});

  my $user_path = File::Spec->rel2abs("$tmpdir/$user-servers.json");
  if (open(my $fh, "> $user_path")) {
    print $fh "[ \"ftp://127.0.0.1:$vhost_port2\" ]\n";
    unless (close($fh)) {
      die("Can't write $user_path: $!");
    }

  } else {
    die("Can't open $user_path: $!");
  }

  my $uservar_path = File::Spec->rel2abs("$tmpdir/%U-servers.json");

  # Since we need multiple ProxyReverseServers directives, convert this
  # hashref into an arrayref.
  $proxy_config = config_hash2array($proxy_config);

  push(@$proxy_config, "ProxyReverseServers file:$uservar_path");
  my $nbackends = 1;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(2);

      # Deliberately use the wrong password; we need to ensure we do not
      # leak information in such cases (Issue #148).
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 0);
      eval { $client->login($user, 'WRONG PASSWORD') };
      unless ($@) {
        die("Login with wrong password succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Deliberately use the wrong username; we need to ensure we do not
      # leak information in such cases.
      eval { $client->user('WrongUser') };
      unless ($@) {
        die("USER with unknown username succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_per_group {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;
  my $vhost_port2 = $vhost_port - 7;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyTimeoutConnect} = '1sec';
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerGroup';
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port ftp://127.0.0.1:$vhost_port2";
  my $nbackends = 2;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 0);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_connect_policy_per_group_by_json {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;
  my $vhost_port2 = $vhost_port - 7;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyTimeoutConnect} = '1sec';
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerGroup';
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';
  $proxy_config->{ProxyReverseServers} = "ftp://127.0.0.1:$vhost_port";

  my $group_path = File::Spec->rel2abs("$tmpdir/$group-servers.json");
  if (open(my $fh, "> $group_path")) {
    print $fh "[ \"ftp://127.0.0.1:$vhost_port2\" ]\n";
    unless (close($fh)) {
      die("Can't write $group_path: $!");
    }

  } else {
    die("Can't open $group_path: $!");
  }

  my $groupvar_path = File::Spec->rel2abs("$tmpdir/%g-servers.json");

  # Since we need multiple ProxyReverseServers directives, convert this
  # hashref into an arrayref.
  $proxy_config = config_hash2array($proxy_config);

  push(@$proxy_config, "ProxyReverseServers file:$groupvar_path");
  my $nbackends = 1;

  my $timeout_idle = 10;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.db:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port2
  ServerName "Other Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>

EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      for (my $i = 0; $i < $nbackends+1; $i++) {
        sleep(2);
        my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 0);
        $client->login($user, $passwd);
        ftp_list($self, $client);
      }
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_transfer_rate_retr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh "ABCDefgh" x 1024, "\n";

    unless (close($fh)) {
      die("Can't write $test_file: $!");
    }

  } else {
    die("Can't open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 30;

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    # 1 KB/sec for downloads
    TransferRate => 'RETR 1',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $conn = $client->retr_raw('test.txt');
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = '';
      my $tmp;

      my $xfer_start = [gettimeofday()];

      while ($conn->read($tmp, 8192, 10)) {
        $buf .= $tmp;
      }
      eval { $conn->close() };

      my $xfer_elapsed = tv_interval($xfer_start);

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # We configured a TransferRate of 1 KB/sec, and retrieved 8 KB;
      # thus make sure that the transfer time is more(-ish) than 8 secs.
      $self->assert($xfer_elapsed > 7.9,
        test_msg("Expected > 8 secs, got $xfer_elapsed"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_use_reverse_proxy_auth_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $resp_code = $client->response_code();
      my $expected = 230;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_use_reverse_proxy_auth_login_extra_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $resp_code = $client->response_code();
      my $expected = 230;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      # Note that this behavior changed due to Bug#4217
      $client->user($setup->{user});
      $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 230;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "User $setup->{user} logged in";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got $resp_msg"));

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_use_reverse_proxy_auth_login_extra_pass {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $resp_code = $client->response_code();
      my $expected = 230;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      eval { $client->pass($passwd) };
      unless ($@) {
        die("Extra PASS succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 503;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'You are already logged in';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got $resp_msg"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_use_reverse_proxy_auth_login_failed_bad_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseReverseProxyAuth';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      eval { $client->login($user, 'foobar') };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_use_direct_data_transfers_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseDirectDataTransfers';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});

  $self->assert_child_ok($pid);

  test_cleanup($self->{log_file}, $ex);
}

sub proxy_reverse_config_use_direct_data_transfers_port_failed {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseDirectDataTransfers';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit PORT>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->list_raw();
      if ($conn) {
        $ex = "LIST succeeded unexpectedly";
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 501;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'PORT: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'")); 

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});

  $self->assert_child_ok($pid);

  test_cleanup($self->{log_file}, $ex);
}

sub proxy_reverse_config_use_direct_data_transfers_list_failed {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseDirectDataTransfers';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit NLST>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login($setup->{user}, $setup->{passwd});

      eval { $client->nlst('.') };
      unless ($@) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 450;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = '.: No such file or directory';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'")); 

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});

  $self->assert_child_ok($pid);

  test_cleanup($self->{log_file}, $ex);
}

sub proxy_reverse_config_use_direct_data_transfers_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseDirectDataTransfers';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);

      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($setup->{user}, $setup->{passwd});

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});

  $self->assert_child_ok($pid);

  test_cleanup($self->{log_file}, $ex);
}

sub proxy_reverse_limit_list_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      LIST => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      eval { $client->list('.') };
      unless ($@) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'LIST: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_list_deny_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      LIST => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      eval { $client->list('.') };
      unless ($@) {
        die("LIST succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'LIST: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_list_deny_group {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      LIST => {
        DenyGroup => $group,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      # Even though we configured a "DenyGroup ftpd" limit, this command
      # should still succeed, because we didn't do proxy auth for this user
      # which means we don't KNOW the groups.
      $client->list('.');

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_mlsd_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      MLSD => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      eval { $client->mlsd('.') };
      unless ($@) {
        die("MLSD succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'MLSD: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_retr_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      RETR => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $conn = $client->retr_raw($config_file);
      if ($conn) {
        die("RETR succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'RETR: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_stor_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      STOR => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $conn = $client->stor_raw('test.dat');
      if ($conn) {
        die("STOR succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'STOR: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_dirs_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      DIRS => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      eval { $client->mlsd('.') };
      unless ($@) {
        die("MLSD succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'MLSD: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_read_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      READ => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $conn = $client->retr_raw($config_file);
      if ($conn) {
        die("RETR succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'RETR: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_limit_write_deny_all {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },

      WRITE => {
        DenyAll => '',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $conn = $client->stor_raw('test.dat');
      if ($conn) {
        die("STOR succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 550;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      my $expected = 'STOR: Operation not permitted';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_xferlog_retr_ascii_ok {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $xfer_log = File::Spec->rel2abs("$tmpdir/xfer.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    TransferLog => $xfer_log,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('ascii');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      # The length of 'Hello, Proxying World!\n' is 23, but we expect 24
      # here because of the ASCII conversion of the bare LF to a CRLF.
      my $expected = length($test_data) + 1;
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $xfer_log")) {
      my $line = <$fh>;
      chomp($line);

      if ($ENV{TEST_VERBOSE}) {
        print STDOUT "$line\n";
      }

      my $expected = '^\S+\s+\S+\s+\d+\s+\d+:\d+:\d+\s+\d+\s+\d+\s+(\S+)\s+(\d+)\s+(\S+)\s+(\S+)\s+_\s+o\s+r\s+(\S+)\s+ftp\s+0\s+\*\s+c$';

      $self->assert(qr/$expected/, $line,
        test_msg("Expected '$expected', got '$line'"));

      if ($line =~ /$expected/) {
        my $remote_host = $1;
        my $filesz = $2;
        my $filename = $3;
        my $xfer_type = $4;
        my $user_name = $5;

        $expected = '127.0.0.1';
        $self->assert($expected eq $remote_host,
          test_msg("Expected host '$expected', got '$remote_host'"));

        # The length of 'Hello, Proxying World!\n' is 23, but we expect 24
        # here because of the ASCII conversion of the bare LF to a CRLF.
        $expected = length($test_data) + 1;
        $self->assert($expected == $filesz,
          test_msg("Expected file size '$expected', got '$filesz'"));

        $expected = $test_file;
        $self->assert($expected eq $filename,
          test_msg("Expected file name '$expected', got '$filename'"));
  
        $expected = 'a';
        $self->assert($expected eq $xfer_type,
          test_msg("Expected transfer type '$expected', got '$xfer_type'"));

        $expected = $user;
        $self->assert($expected eq $user_name,
          test_msg("Expected user '$expected', got '$user_name'"));
      }

      my $next_line = <$fh>;
      close($fh);
      chomp($next_line);

      if (length($next_line) > 0) {
        die("Expected only one TransferLog entry, got more than one");
      }

    } else {
      die("Can't read $xfer_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_xferlog_retr_ascii_chrooted_ok {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $xfer_log = File::Spec->rel2abs("$tmpdir/xfer.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    TransferLog => $xfer_log,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('ascii');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      # The length of 'Hello, Proxying World!\n' is 23, but we expect 24
      # here because of the ASCII conversion of the bare LF to a CRLF.
      my $expected = length($test_data) + 1;
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $xfer_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      my $expected = '^\S+\s+\S+\s+\d+\s+\d+:\d+:\d+\s+\d+\s+\d+\s+(\S+)\s+(\d+)\s+(\S+)\s+(\S+)\s+_\s+o\s+r\s+(\S+)\s+ftp\s+0\s+\*\s+c$';

      $self->assert(qr/$expected/, $line,
        test_msg("Expected '$expected', got '$line'"));

      if ($line =~ /$expected/) {
        my $remote_host = $1;
        my $filesz = $2;
        my $filename = $3;
        my $xfer_type = $4;
        my $user_name = $5;

        $expected = '127.0.0.1';
        $self->assert($expected eq $remote_host,
          test_msg("Expected host '$expected', got '$remote_host'"));

        # The length of 'Hello, Proxying World!\n' is 23, but we expect 24
        # here because of the ASCII conversion of the bare LF to a CRLF.
        $expected = length($test_data) + 1;
        $self->assert($expected == $filesz,
          test_msg("Expected file size '$expected', got '$filesz'"));

        $expected = $test_file;
        $self->assert($expected eq $filename,
          test_msg("Expected file name '$expected', got '$filename'"));
  
        $expected = 'a';
        $self->assert($expected eq $xfer_type,
          test_msg("Expected transfer type '$expected', got '$xfer_type'"));

        $expected = $user;
        $self->assert($expected eq $user_name,
          test_msg("Expected user '$expected', got '$user_name'"));
      }

    } else {
      die("Can't read $xfer_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_xferlog_retr_binary_ok {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $xfer_log = File::Spec->rel2abs("$tmpdir/xfer.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    TransferLog => $xfer_log,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      # The length of 'Hello, Proxying World!\n' is 23, so that is what
      # we expect here; no ASCII conversion to change things.
      my $expected = length($test_data);
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $xfer_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      my $expected = '^\S+\s+\S+\s+\d+\s+\d+:\d+:\d+\s+\d+\s+\d+\s+(\S+)\s+(\d+)\s+(\S+)\s+(\S+)\s+_\s+o\s+r\s+(\S+)\s+ftp\s+0\s+\*\s+c$';

      $self->assert(qr/$expected/, $line,
        test_msg("Expected '$expected', got '$line'"));

      if ($line =~ /$expected/) {
        my $remote_host = $1;
        my $filesz = $2;
        my $filename = $3;
        my $xfer_type = $4;
        my $user_name = $5;

        $expected = '127.0.0.1';
        $self->assert($expected eq $remote_host,
          test_msg("Expected host '$expected', got '$remote_host'"));

        # The length of 'Hello, Proxying World!\n' is 23, so that is what
        # we expect here; no ASCII conversion to change things.
        $expected = length($test_data);
        $self->assert($expected == $filesz,
          test_msg("Expected file size '$expected', got '$filesz'"));

        $expected = $test_file;
        $self->assert($expected eq $filename,
          test_msg("Expected file name '$expected', got '$filename'"));
  
        $expected = 'b';
        $self->assert($expected eq $xfer_type,
          test_msg("Expected transfer type '$expected', got '$xfer_type'"));

        $expected = $user;
        $self->assert($expected eq $user_name,
          test_msg("Expected user '$expected', got '$user_name'"));
      }

    } else {
      die("Can't read $xfer_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_xferlog_stor_ascii_ok {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $xfer_log = File::Spec->rel2abs("$tmpdir/xfer.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    TransferLog => $xfer_log,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('ascii');

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $xfer_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      my $expected = '^\S+\s+\S+\s+\d+\s+\d+:\d+:\d+\s+\d+\s+\d+\s+(\S+)\s+(\d+)\s+(\S+)\s+(\S+)\s+_\s+i\s+r\s+(\S+)\s+ftp\s+0\s+\*\s+c$';

      $self->assert(qr/$expected/, $line,
        test_msg("Expected '$expected', got '$line'"));

      if ($line =~ /$expected/) {
        my $remote_host = $1;
        my $filesz = $2;
        my $filename = $3;
        my $xfer_type = $4;
        my $user_name = $5;

        $expected = '127.0.0.1';
        $self->assert($expected eq $remote_host,
          test_msg("Expected host '$expected', got '$remote_host'"));

        # The length of 'Hello, Proxying World!\n' is 23, but we expect 24
        # here because of the ASCII conversion of the bare LF to a CRLF.
        $expected = length($test_data) + 1;
        $self->assert($expected == $filesz,
          test_msg("Expected file size '$expected', got '$filesz'"));

        $expected = $test_file;
        $self->assert($expected eq $filename,
          test_msg("Expected file name '$expected', got '$filename'"));
  
        $expected = 'a';
        $self->assert($expected eq $xfer_type,
          test_msg("Expected transfer type '$expected', got '$xfer_type'"));

        $expected = $user;
        $self->assert($expected eq $user_name,
          test_msg("Expected user '$expected', got '$user_name'"));
      }

    } else {
      die("Can't read $xfer_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_xferlog_stor_binary_ok {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $xfer_log = File::Spec->rel2abs("$tmpdir/xfer.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    TransferLog => $xfer_log,

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $xfer_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      my $expected = '^\S+\s+\S+\s+\d+\s+\d+:\d+:\d+\s+\d+\s+\d+\s+(\S+)\s+(\d+)\s+(\S+)\s+(\S+)\s+_\s+i\s+r\s+(\S+)\s+ftp\s+0\s+\*\s+c$';

      $self->assert(qr/$expected/, $line,
        test_msg("Expected '$expected', got '$line'"));

      if ($line =~ /$expected/) {
        my $remote_host = $1;
        my $filesz = $2;
        my $filename = $3;
        my $xfer_type = $4;
        my $user_name = $5;

        $expected = '127.0.0.1';
        $self->assert($expected eq $remote_host,
          test_msg("Expected host '$expected', got '$remote_host'"));

        # The length of 'Hello, Proxying World!\n' is 23, so that is what
        # we expect here; no ASCII conversion to change things.
        $expected = length($test_data);
        $self->assert($expected == $filesz,
          test_msg("Expected file size '$expected', got '$filesz'"));

        $expected = $test_file;
        $self->assert($expected eq $filename,
          test_msg("Expected file name '$expected', got '$filename'"));
  
        $expected = 'b';
        $self->assert($expected eq $xfer_type,
          test_msg("Expected transfer type '$expected', got '$xfer_type'"));

        $expected = $user;
        $self->assert($expected eq $user_name,
          test_msg("Expected user '$expected', got '$user_name'"));
      }

    } else {
      die("Can't read $xfer_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_extlog_retr_var_F_f {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
    print $fh $test_data;

    unless (close($fh)) {
      die("Unable to write $test_file: $!");
    }

  } else {
    die("Unable to open $test_file: $!");
  }

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $ext_log = File::Spec->rel2abs("$tmpdir/ext.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    LogFormat => 'custom "%F|%f"',
    ExtendedLog => "$ext_log READ custom",

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      my $size = $conn->bytes_read();
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      # The length of 'Hello, Proxying World!\n' is 23, so that is what
      # we expect here; no ASCII conversion to change things.
      my $expected = length($test_data);
      $self->assert($expected == $size,
        test_msg("Expected $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $ext_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      # Due to the fact that these tests run both the proxy server and the
      # backend server on the same box, it means that the proxy server's
      # mod_log IS in a position to get the full path for %f.  But in other
      # cases, the proxy server won't have that file present (or it might
      # even be the wrong file).  Thus %F/%f are to be distrusted in the
      # ExtendedLog entries generated by mod_proxy.

    } else {
      die("Can't read $ext_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_extlog_stor_var_F_f {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $ext_log = File::Spec->rel2abs("$tmpdir/ext.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    LogFormat => 'custom "%F|%f"',
    ExtendedLog => "$ext_log WRITE custom",

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->type('binary');

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      $conn->write($buf, length($test_data), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $ext_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      # Due to the fact that these tests run both the proxy server and the
      # backend server on the same box, it means that the proxy server's
      # mod_log IS in a position to get the full path for %f.  But in other
      # cases, the proxy server won't have that file present (or it might
      # even be the wrong file).  Thus %F/%f are to be distrusted in the
      # ExtendedLog entries generated by mod_proxy.

    } else {
      die("Can't read $ext_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_extlog_list_var_D_d {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $timeout_idle = 10;
  my $ext_log = File::Spec->rel2abs("$tmpdir/ext.log");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    TimeoutIdle => $timeout_idle,

    LogFormat => 'custom "%D|%d"',
    ExtendedLog => "$ext_log DIRS custom",

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TimeoutIdle $timeout_idle

  TransferLog none
  WtmpLog off
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("LIST failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh, $timeout_idle + 2) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  eval {
    if (open(my $fh, "< $ext_log")) {
      my $line = <$fh>;
      chomp($line);
      close($fh);

      # Due to the fact that these tests run both the proxy server and the
      # backend server on the same box, it means that the proxy server's
      # mod_log IS in a position to get the full path for %d.  But in other
      # cases, the proxy server won't have that file present (or it might
      # even be the wrong file).  Thus %D/%d are to be distrusted in the
      # ExtendedLog entries generated by mod_proxy.

    } else {
      die("Can't read $ext_log: $!");
    }
  };
  if ($@) {
    $ex = $@;
  }

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_proxy_protocol_v1_ipv4 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseProxyProtocol';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:10 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy_protocol:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TransferLog none
  WtmpLog off

  <IfModule mod_proxy_protocol.c>
    ProxyProtocolEngine on
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_proxy_protocol_v1_ipv6 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://[::1]:$vhost_port";
  $proxy_config->{ProxyOptions} = 'UseProxyProtocolV1';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:10 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy_protocol:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost ::1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  TransferLog none
  WtmpLog off

  <IfModule mod_proxy_protocol.c>
    ProxyProtocolEngine on
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_proxy_protocol_v2_ipv4 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyOptions} = 'UseProxyProtocolV2';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:10 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy_protocol:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TransferLog none
  WtmpLog off

  <IfModule mod_proxy_protocol.c>
    ProxyProtocolEngine on
    ProxyProtocolVersion haproxyV2
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($setup->{user}, $setup->{passwd});
      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_proxy_protocol_v2_ipv6 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyReverseServers} = "ftp://[::1]:$vhost_port";
  $proxy_config->{ProxyOptions} = 'UseProxyProtocolV2';
  $proxy_config->{ProxySourceAddress} = '::1';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:10 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy_protocol:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    SocketBindTight => 'on',
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost ::1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  TransferLog none
  WtmpLog off

  <IfModule mod_proxy_protocol.c>
    ProxyProtocolEngine on
    ProxyProtocolVersion haproxyV2
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($setup->{user}, $setup->{passwd});
      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_reverse_config_reverseservers_json {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $proxy_hosts_file = File::Spec->rel2abs("$tmpdir/backends.json");
  if (open(my $fh, "> $proxy_hosts_file")) {
    print $fh "[ \"ftp://127.0.0.1:$vhost_port\" ]\n";

    unless (close($fh)) {
      die("Can't write $proxy_hosts_file: $!");
    }

  } else {
    die("Can't open $proxy_hosts_file: $!");
  }

  # Make sure that mod_proxy correctly handles a list of backend servers
  # read from a file.
  $proxy_config->{ProxyReverseServers} = "file:$proxy_hosts_file";

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_reverse_config_reverseservers_json_per_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 12;

  my $proxy_config = get_reverse_proxy_config($tmpdir, $log_file, $vhost_port);

  my $proxy_hosts_path = File::Spec->rel2abs("$tmpdir/$user.json");
  if (open(my $fh, "> $proxy_hosts_path")) {
    print $fh "[\n \"ftp://127.0.0.1:$vhost_port\"\n]\n";

    unless (close($fh)) {
      die("Can't write $proxy_hosts_path: $!");
    }

  } else {
    die("Can't open $proxy_hosts_path: $!");
  }

  my $proxy_hosts_file = File::Spec->rel2abs("$tmpdir/%U.json");

  # Make sure that mod_proxy correctly handles a list of backend servers
  # read from a file.
  $proxy_config->{ProxyReverseServers} = "file:$proxy_hosts_file";
  $proxy_config->{ProxyReverseConnectPolicy} = 'PerUser';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.reverse:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },

    Limit => {
      LOGIN => {
        DenyUser => $user,
      },
    },

  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_connect {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      $client->quit();

      my $expected;

      $expected = 220;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Forward Proxy Server';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_connect_failed_timeout {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';
  $proxy_config->{ProxyTimeoutConnect} = 1;

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $dst_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
      my $listening = IO::Socket::INET->new(
        LocalHost => '127.0.0.1',
        LocalPort => $dst_port,
        Proto => 'tcp',
        Type => SOCK_STREAM,
        Listen => 5,
        ReuseAddr => 1,
        ReusePort => 1,
      );

      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      my $start = [gettimeofday()];
      eval { $client->login("$setup->{user}\@127.0.0.1:$dst_port", $setup->{passwd}) };
      my $elapsed = tv_interval($start);
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      eval { $listening->close() };

      $self->assert($elapsed < 2,
        test_msg("ProxyTimeoutConnect 1 not honored (elapsed $elapsed)"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_noproxyauth_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_noproxyauth_login_after_host {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $host = 'localhost';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 binding:20 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    DefaultServer => 'on',
    ServerName => '"Default Server"',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    my $tables_dir = File::Spec->rel2abs("$tmpdir/var/proxy");

    print $fh <<EOC;
<IfModule mod_proxy.c>
  ProxyTables $tables_dir

  <Class forward-proxy>
    From 127.0.0.1
    ProxyForwardEnabled on
  </Class>
</IfModule>

<VirtualHost 127.0.0.1>
  Port $port
  ServerAlias $host
  ServerName "Namebased Server"

  <IfModule mod_delay.c>
    DelayEngine off
  </IfModule>

  <IfModule mod_proxy.c>
    ProxyEngine on
    ProxyLog $log_file
    ProxyRole forward
    ProxyForwardMethod user\@host
  </IfModule>
</VirtualHost>

<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      my ($resp_code, $resp_msg) = $client->host($host);

      my $expected = 220;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Namebased';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_noproxyauth_login_extra_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login("$setup->{user}\@127.0.0.1:$vhost_port", $setup->{passwd});

      # Note that this behavior changed due to Bug#4217
      $client->user($setup->{user});
      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 230;
      $self->assert($resp_code == $expected,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "User $setup->{user} logged in";
      $self->assert($resp_msg eq $expected,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_noproxyauth_login_extra_pass {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      eval { $client->pass($passwd) };
      unless ($@) {
        die("Second PASS succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 503;
      $self->assert($resp_code == $expected,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'You are already logged in';
      $self->assert($resp_msg eq $expected,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_noproxyauth_login_ipv6_dst_addr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost ::1 ::ffff:127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@[::ffff:127.0.0.1]:$vhost_port", $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_noproxyauth_login_netftp_fw_type_1 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      # Set the appropriate Net::FTP environment variables for "FTP firewalls".
      $ENV{FTP_FIREWALL} = "127.0.0.1:$vhost_port";
      $ENV{FTP_FIREWALL_TYPE} = 1;

      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_noproxyauth_login_failed_bad_dst_addr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 netio:20 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);

      my $bad_addr = '1.2.3.4:5678';
      eval { $client->user("$setup->{user}\@$bad_addr") };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to $bad_addr: Operation timed out";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_noproxyauth_login_failed_proxy_dst_addr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);

      my $proxy_addr = "127.0.0.1:$port";
      eval { $client->user("$setup->{user}\@$proxy_addr") };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $client->quit();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to $proxy_addr: Operation not permitted";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_noproxyauth_login_failed_non2xx {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $allow_file = File::Spec->rel2abs("$tmpdir/wrap2.allow");
  if (open(my $fh, "> $allow_file")) {
    unless (close($fh)) {
      die("Can't write $allow_file: $!");
    }

  } else {
    die("Can't open $allow_file: $!");
  }

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <IfModule mod_wrap2_file.c>
    WrapEngine on
    WrapLog $log_file
    WrapTables file:$allow_file builtin:all
    WrapOptions CheckOnConnect
  </IfModule>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      eval { $client->login("$user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_noproxyauth_login_failed_login_limit {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit LOGIN>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      eval { $client->user("$setup->{user}\@127.0.0.1:$vhost_port") };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $client->quit();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to 127.0.0.1: Operation not permitted";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_noproxyauth_login_failed_bad_sequence {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->user("$setup->{user}\@127.0.0.1:$vhost_port");
      eval { $client->pwd() };
      unless ($@) {
        die("Out-of-sequence command succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $client->quit();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Please login with USER and PASS';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };
    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});
  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_noproxyauth_login_failed_bad_dst_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      my $bad_passwd = "BadPassword";
      eval { $client->login("$user\@127.0.0.1:$vhost_port", $bad_passwd) };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_login_feat_first {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20 proxy.ftp.sess:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      my ($resp_code, $resp_msg) = $client->feat();

      my $expected;

      $expected = 211;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_list_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_list_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      ($resp_code, $resp_msg) = $client->quit();

      my $expected = 221;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Goodbye.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_epsv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my ($resp_code, $resp_msg) = $client->epsv();

      my $expected = 229;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = '^Entering Extended Passive Mode \(\|\|\|\d+\|\)';
      $self->assert(qr/$expected/, $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_eprt_ipv4 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my ($resp_code, $resp_msg) = $client->eprt('|1|127.0.0.1|4856|');

      my $expected;

      $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected $expected, got $resp_code"));

      $expected = "EPRT command successful";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_eprt_ipv6 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',
    UseIPv6 => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my ($resp_code, $resp_msg) = $client->eprt('|2|::ffff:127.0.0.1|4856|');

      my $expected;

      $expected = 200;
      $self->assert($expected == $resp_code,
        test_msg("Expected $expected, got $resp_code"));

      $expected = "EPRT command successful";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_retr_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");
  if (open(my $fh, "> $test_file")) {
     print $fh $test_data;
     unless (close($fh)) {
       die("Can't write $test_file: $!");
     }

  } else {
    die("Can't open $test_file: $!");
  }

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my $conn = $client->retr_raw($test_file);
      unless ($conn) {
        die("RETR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      my $expected = length($test_data);
      my $size = -s $test_file;
      $self->assert($expected == $size,
        test_msg("Expected size $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_stor_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';

  my $test_data = "Hello, Proxying World!\n";
  my $test_file = File::Spec->rel2abs("$tmpdir/test.txt");

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      my $conn = $client->stor_raw($test_file);
      unless ($conn) {
        die("STOR failed: " . $client->response_code() . " " .
          $client->response_msg());
      }

      my $buf = $test_data;
      $conn->write($buf, length($buf), 30);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();

      $self->assert(-f $test_file,
        test_msg("File $test_file does not exist as expected"));

      my $expected = length($test_data);
      my $size = -s $test_file;
      $self->assert($expected == $size,
        test_msg("Expected size $expected, got $size"));
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_extra_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      eval { $client->user($user) };
      unless ($@) {
        die("Extra USER succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 500;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Bad sequence of commands';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_extra_pass {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);

      eval { $client->pass($passwd) };
      unless ($@) {
        die("Extra PASS succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 503;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'You are already logged in';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_user_incl_at_symbol {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd@proftpd.org';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);
      $client->login("$user\@127.0.0.1:$vhost_port", $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_failed_bad_dst_addr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);

      my $bad_addr = '1.2.3.4:5678';
      eval { $client->login("$user\@$bad_addr", $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to $bad_addr: Operation timed out";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_failed_non2xx {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit LOGIN>
    DenyUser $user
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);

      eval { $client->login("$user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_failed_limit_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit LOGIN>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);

      eval { $client->login("$user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to 127.0.0.1: Operation not permitted";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_failed_bad_sequence {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 netio:20 response:20 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->user($proxy_user);

      eval { $client->pwd() };
      unless ($@) {
        die("PWD after proxy USER succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Please login with USER and PASS';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Finish frontend authentication
      $client->pass($proxy_passwd);

      eval { $client->cwd("/") };
      unless ($@) {
        die("CWD after proxy PASS succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      eval { $client->list() };
      unless ($@) {
        die("LIST after proxy PASS succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      eval { $client->pwd() };
      unless ($@) {
        die("PWD after proxy PASS succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->user("$user\@127.0.0.1:$vhost_port");

      eval { $client->pwd() };
      unless ($@) {
        die("PWD after destination USER succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Please login with USER and PASS';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Finish target authentication
      $client->pass($passwd);

      ($resp_code, $resp_msg) = $client->pwd();

      $expected = 257;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_failed_bad_proxy_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 response:20 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      my $bad_passwd = "BadPassword";
      eval { $client->login($proxy_user, $bad_passwd) };
      unless ($@) {
        die("Proxy login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      eval { $client->login("$user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Second login succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));
      
      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_login_failed_bad_dst_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);

      my $bad_passwd = "BadPassword";
      eval { $client->login("$user\@127.0.0.1:$vhost_port", $bad_passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));
      
      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_userwithproxyauth_bad_sequence_no_dst_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser,user@host';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login($proxy_user, $proxy_passwd);

      my $bad_user = "BadUser";
      eval { $client->login("$bad_user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));
      
      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_extra_user {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);
      $client->login($user, $passwd);

      eval { $client->user($user) };
      unless ($@) {
        die("Extra USER succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 500;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Bad sequence of commands';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_extra_pass {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);
      $client->login($user, $passwd);

      eval { $client->pass($passwd) };
      unless ($@) {
        die("Extra PASS succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 503;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'You are already logged in';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_user_incl_at_symbol {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user@proftpd.org';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);
      $client->login($user, $passwd);
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_failed_bad_dst_addr {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      my $bad_addr = '1.2.3.4:5678';
      $client->login("$proxy_user\@$bad_addr", $proxy_passwd);

      eval { $client->login($user, $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to $bad_addr: Operation timed out";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_failed_non2xx {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit LOGIN>
    DenyUser $user
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);

      eval { $client->login($user, $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_failed_limit_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none

  <Limit LOGIN>
    DenyAll
  </Limit>
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);

      eval { $client->login($user, $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Unable to connect to 127.0.0.1: Operation not permitted";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_failed_bad_sequence {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      $client->user("$proxy_user\@127.0.0.1:$vhost_port");

      eval { $client->pwd() };
      unless ($@) {
        die("PWD after proxy USER succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected;

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Please login with USER and PASS';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Finish frontend authentication
      $client->pass($proxy_passwd);

      eval { $client->cwd("/") };
      unless ($@) {
        die("CWD after proxy PASS succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      eval { $client->list() };
      unless ($@) {
        die("LIST after proxy PASS succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      eval { $client->pwd() };
      unless ($@) {
        die("PWD after proxy PASS succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Access denied';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      $client->user($user);

      eval { $client->pwd() };
      unless ($@) {
        die("PWD after destination USER succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Please login with USER and PASS';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # Finish target authentication
      $client->pass($passwd);

      ($resp_code, $resp_msg) = $client->pwd();

      $expected = 257;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_failed_bad_proxy_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      my $bad_passwd = "BadPassword";
      eval { $client->login("$proxy_user\@127.0.0.1:$vhost_port", $bad_passwd) };
      unless ($@) {
        die("Proxy login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      eval { $client->login($user, $passwd) };
      unless ($@) {
        die("Second login succeeded unexpectedly");
      }

      $resp_code = $client->response_code();
      $resp_msg = $client->response_msg();

      $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));
      
      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_login_failed_bad_dst_passwd {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);

      my $bad_passwd = "BadPassword";
      eval { $client->login($user, $bad_passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));
      
      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_proxyuserwithproxyauth_bad_sequence_no_dst_login {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/vhost.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/vhost.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  # Have separate Auth files for the proxy
  my $proxy_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $proxy_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $proxy_user = 'proxy-user';
  my $proxy_passwd = 'proxy-test';

  auth_user_write($proxy_user_file, $proxy_user, $proxy_passwd, $uid, $gid,
    $home_dir, '/bin/bash');
  auth_group_write($proxy_group_file, $group, $gid, $proxy_user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'proxyuser@host,user';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $proxy_user_file,
    AuthGroupFile => $proxy_group_file,
    AuthOrder => 'mod_auth_file.c',
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      $client->login("$proxy_user\@127.0.0.1:$vhost_port", $proxy_passwd);

      my $bad_user = "BadUser";
      eval { $client->login($bad_user, $passwd) };
      unless ($@) {
        die("Destination login succeeded unexpectedly");
      }

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();

      my $expected = 530;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));
      
      $expected = 'Login incorrect.';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));
      
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_config_forward_to {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';
  $proxy_config->{ProxyForwardTo} = '^google.com [NC]';

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      eval { $client->login("$user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_config_forward_to_negated {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

  my $config_file = "$tmpdir/proxy.conf";
  my $pid_file = File::Spec->rel2abs("$tmpdir/proxy.pid");
  my $scoreboard_file = File::Spec->rel2abs("$tmpdir/proxy.scoreboard");

  my $log_file = test_get_logfile();

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/proxy.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/proxy.group");

  my $user = 'proftpd';
  my $passwd = 'test';
  my $group = 'ftpd';
  my $home_dir = File::Spec->rel2abs($tmpdir);
  my $uid = 500;
  my $gid = 500;

  # Make sure that, if we're running as root, that the home directory has
  # permissions/privs set for the account we create
  if ($< == 0) {
    unless (chmod(0755, $home_dir)) {
      die("Can't set perms on $home_dir to 0755: $!");
    }

    unless (chown($uid, $gid, $home_dir)) {
      die("Can't set owner of $home_dir to $uid/$gid: $!");
    }
  }

  auth_user_write($auth_user_file, $user, $passwd, $uid, $gid, $home_dir,
    '/bin/bash');
  auth_group_write($auth_group_file, $group, $gid, $user);

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $log_file, $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';
  $proxy_config->{ProxyForwardTo} = "!^127\.0\.0\.1 [NC]";

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($config_file, $config);

  if (open(my $fh, ">> $config_file")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $auth_user_file
  AuthGroupFile $auth_group_file
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $config_file: $!");
    }

  } else {
    die("Can't open $config_file: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      eval { $client->login("$user\@127.0.0.1:$vhost_port", $passwd) };
      unless ($@) {
        die("Login succeeded unexpectedly");
      }
      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($config_file, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($pid_file);

  $self->assert_child_ok($pid);

  if ($ex) {
    test_append_logfile($log_file, $ex);
    unlink($log_file);

    die($ex);
  }

  unlink($log_file);
}

sub proxy_forward_config_use_direct_data_transfers_port {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';
  $proxy_config->{ProxyOptions} = 'UseDirectDataTransfers';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 1, 1);
      $client->login("$setup->{user}\@127.0.0.1:$vhost_port", $setup->{passwd});

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});

  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

sub proxy_forward_config_use_direct_data_transfers_pasv {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'proxy');

  my $vhost_port = ProFTPD::TestSuite::Utils::get_high_numbered_port();
  $vhost_port += 17;

  my $proxy_config = get_forward_proxy_config($tmpdir, $setup->{log_file},
    $vhost_port);
  $proxy_config->{ProxyForwardMethod} = 'user@host';
  $proxy_config->{ProxyOptions} = 'UseDirectDataTransfers';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 event:0 lock:0 scoreboard:0 signal:0 proxy:20 proxy.conn:20 proxy.uri:20 proxy.forward:20 proxy.ftp.conn:20 proxy.ftp.ctrl:20 proxy.ftp.data:20 proxy.ftp.msg:20',

    AuthUserFile => $setup->{auth_user_file},
    AuthGroupFile => $setup->{auth_group_file},
    ServerIdent => 'on "Forward Proxy Server"',
    SocketBindTight => 'on',

    IfModules => {
      'mod_proxy.c' => $proxy_config,

      'mod_delay.c' => {
        DelayEngine => 'off',
      },
    },
  };

  my ($port, $config_user, $config_group) = config_write($setup->{config_file},
    $config);

  if (open(my $fh, ">> $setup->{config_file}")) {
    print $fh <<EOC;
<VirtualHost 127.0.0.1>
  Port $vhost_port
  ServerName "Real Server"

  AuthUserFile $setup->{auth_user_file}
  AuthGroupFile $setup->{auth_group_file}
  AuthOrder mod_auth_file.c

  AllowOverride off
  WtmpLog off
  TransferLog none
</VirtualHost>
EOC
    unless (close($fh)) {
      die("Can't write $setup->{config_file}: $!");
    }

  } else {
    die("Can't open $setup->{config_file}: $!");
  }

  # Open pipes, for use between the parent and child processes.  Specifically,
  # the child will indicate when it's done with its test by writing a message
  # to the parent.
  my ($rfh, $wfh);
  unless (pipe($rfh, $wfh)) {
    die("Can't open pipe: $!");
  }

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      sleep(1);
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      $client->login("$setup->{user}\@127.0.0.1:$vhost_port", $setup->{passwd});

      my $conn = $client->list_raw();
      unless ($conn) {
        die("Failed to LIST: " . $client->response_code() . ' ' .
          $client->response_msg());
      }

      my $buf;
      $conn->read($buf, 8192, 10);
      eval { $conn->close() };

      my $resp_code = $client->response_code();
      my $resp_msg = $client->response_msg();
      $self->assert_transfer_ok($resp_code, $resp_msg);

      $client->quit();
    };

    if ($@) {
      $ex = $@;
    }

    $wfh->print("done\n");
    $wfh->flush();

  } else {
    eval { server_wait($setup->{config_file}, $rfh) };
    if ($@) {
      warn($@);
      exit 1;
    }

    exit 0;
  }

  # Stop server
  server_stop($setup->{pid_file});

  $self->assert_child_ok($pid);

  test_cleanup($setup->{log_file}, $ex);
}

1;
