package ProFTPD::Tests::Config::AuthAliasOnly;

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

use File::Spec;
use IO::Handle;

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

$| = 1;

my $order = 0;

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

  authaliasonly_off_anon_bug2070 => {
    order => ++$order,
    test_class => [qw(bug forking rootprivs)],
  },

  authaliasonly_on_anon_bug3501 => {
    order => ++$order,
    test_class => [qw(bug forking rootprivs)],
  },

  authaliasonly_on_system_bug3501 => {
    order => ++$order,
    test_class => [qw(bug forking rootprivs)],
  },

  authaliasonly_on_anon_bug4255 => {
    order => ++$order,
    test_class => [qw(bug forking rootprivs)],
  },

  authaliasonly_on_anon_bug4314 => {
    order => ++$order,
    test_class => [qw(bug forking rootprivs)],
  },

};

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

sub list_tests {
  return testsuite_get_runnable_tests($TESTS);
}

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

  my $alias = 'ftp';

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},

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

    UserAlias => "$alias $setup->{user}",
    AuthAliasOnly => 'on',

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

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

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

      $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      eval { $client->login($setup->{user}, $setup->{passwd}) };
      unless ($@) {
        die("Login using user '$setup->{user}' succeeded unexpectedly");
      }
    };

    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 authaliasonly_off_anon_bug2070 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = File::Spec->rel2abs('tests.log');

  my $auth_user_file = File::Spec->rel2abs("$tmpdir/config.passwd");
  my $auth_group_file = File::Spec->rel2abs("$tmpdir/config.group");
  
  my $user = 'proftpd';
  my $passwd = 'test';
  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: $!");
    }
  }

  my $alias = 'ftptest';

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

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'auth:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    AuthOrder => 'mod_auth_file.c',

    IfModules => {
      '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;
<Global>
  AuthAliasOnly off
</Global>
<Anonymous $home_dir>
  User $user
  Group ftpd
  UserAlias $alias $user
  RequireValidShell off
  AuthAliasOnly on
  AuthUsingAlias off
</Anonymous>
EOC
    unless (close($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 {
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);

      # Make sure that we are indeed logging in anonymously
      my ($resp_code, $resp_msg) = $client->login($alias, 'ftp@nospam.org');

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

      $expected = 'Anonymous access granted, restrictions apply';
      $self->assert($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 ($ex) {
    die($ex);
  }

  unlink($log_file);
}

sub authaliasonly_on_anon_bug3501 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = File::Spec->rel2abs('tests.log');

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

  my $test_file = File::Spec->rel2abs($config_file);

  my $user = 'proftpd';
  my $passwd = 'test';
  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, 'ftpd', $gid, $user);

  my ($config_user, $config_group) = config_get_identity();

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    User => $config_user,
    Group => $config_group,

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    AuthOrder => 'mod_auth_file.c',

    Anonymous => {
      $home_dir => {
        User => $config_user,
        Group => $config_group,
        RequireValidShell => 'off',
        UserAlias => "anonymous $config_user",
        AuthAliasOnly => 'on',
      },
    },

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

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

  # 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 $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      my ($resp_code, $resp_msg) = $client->user($config_user);

      my $expected = 331;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      # Since AuthAliasOnly is true, it means that that anonymous login can
      # ONLY happen via the alias, NOT via the configured User.
      $expected = "Password required for $config_user";
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      # What about using the alias, though?
      ($resp_code, $resp_msg) = $client->user('anonymous');

      $expected = 331;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Anonymous login ok, send your complete email address as your password";
      $self->assert($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 ($ex) {
    die($ex);
  }

  unlink($log_file);
}

sub authaliasonly_on_system_bug3501 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = File::Spec->rel2abs('tests.log');

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

  my $test_file = File::Spec->rel2abs($config_file);

  my $user = 'proftpd';
  my $passwd = 'test';
  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, 'ftpd', $gid, $user);

  my ($config_user, $config_group) = config_get_identity();

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    User => $config_user,
    Group => $config_group,
    DefaultServer => 'on',
    RequireValidShell => 'on',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,
    AuthOrder => 'mod_auth_file.c',

    Anonymous => {
      $home_dir => {
        User => $config_user,
        Group => $config_group,
        RequireValidShell => 'on',
        UserAlias => "anonymous $config_user",
        AuthAliasOnly => 'on',

        Limit => {
          WRITE => {
            DenyAll => '',
          },
        },
      },
    },

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

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

  # 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 $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port);
      my ($resp_code, $resp_msg) = $client->user($user);

      my $expected = 331;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = "Password required for $user";
      $self->assert($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 ($ex) {
    die($ex);
  }

  unlink($log_file);
}

sub authaliasonly_on_anon_bug4255 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'config');

  my ($config_user, $config_group) = config_get_identity();

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'auth:20',

    User => $config_user,
    Group => $config_group,

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

    AuthAliasOnly => 'on',

    Anonymous => {
      $setup->{home_dir} => {
        User => $config_user,
        Group => $config_group,
        RequireValidShell => 'off',
        UserAlias => "anonymous $config_user",
      },
    },

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

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

  # 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);

      # First, try logging in as user 'anonymous', i.e. the alias.
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      my ($resp_code, $resp_msg) = $client->user("anonymous");

      my $expected = 331;
      $self->assert($expected == $resp_code,
        test_msg("Expected response code $expected, got $resp_code"));

      $expected = 'Anonymous login ok, send your complete email address as your password';
      $self->assert($expected eq $resp_msg,
        test_msg("Expected response message '$expected', got '$resp_msg'"));

      ($resp_code, $resp_msg) = $client->pass('ftp@nospam.org');

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

      $expected = 'Anonymous access granted, restrictions apply';
      $self->assert($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 authaliasonly_on_anon_bug4314 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'config');

  my ($config_user, $config_group) = config_get_identity();

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'auth:20',

    User => $config_user,
    Group => $config_group,

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

    Anonymous => {
      $setup->{home_dir} => {
        User => $setup->{user},
        Group => $setup->{group},
        RequireValidShell => 'off',
        UserAlias => "anonymous $setup->{user}",
        AuthAliasOnly => 'on',
        AnonRequirePassword => 'off',
      },
    },

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

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

  # 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);

      # First, try logging in as user 'anonymous', i.e. the alias.
      my $client = ProFTPD::TestSuite::FTP->new('127.0.0.1', $port, 0, 1);
      my ($resp_code, $resp_msg) = $client->user("anonymous");

      my $expected = 331;
      $self->assert($expected == $resp_code,
        "Expected response code $expected, got $resp_code");

      $expected = 'Anonymous login ok, send your complete email address as your password';
      $self->assert($expected eq $resp_msg,
        "Expected response message '$expected', got '$resp_msg'");

      ($resp_code, $resp_msg) = $client->pass('ftp@nospam.org');

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

      $expected = 'Anonymous access granted, restrictions apply';
      $self->assert($expected eq $resp_msg,
        "Expected response message '$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);
}

1;