package ProFTPD::Tests::Modules::mod_sftp_sql;

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

use Digest::MD5;
use File::Copy;
use File::Spec;
use IO::Handle;
use IPC::Open3;
use POSIX qw(:fcntl_h);

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

$| = 1;

my $order = 0;

my $TESTS = {
  ssh2_auth_publickey_rsa_sql => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_var_U => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_var_u => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_dsa_sql => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_dsa_sql => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_rfc4716 => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_rfc4716_with_continued_line => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_dsa_sql_rfc4716 => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_dsa_sql_rfc4716 => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_multiple_keys_one_row_bug3942 => {
    order => ++$order,
    test_class => [qw(bug forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_fp_env_vars => {
    order => ++$order,
    test_class => [qw(forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_rfc4716_overlong_comment_bug4155 => {
    order => ++$order,
    test_class => [qw(bug forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_invalid_format_bug4350 => {
    order => ++$order,
    test_class => [qw(bug forking ssh2)],
  },

  ssh2_ext_auth_publickey_openssh_ed25519_sql_bug4221 => {
    order => ++$order,
    test_class => [qw(bug forking ssh2)],
  },

  ssh2_ext_auth_publickey_openssh_ed25519_sql_rfc4716_bug4221 => {
    order => ++$order,
    test_class => [qw(bug forking ssh2)],
  },

  ssh2_auth_publickey_rsa_sql_null_values_issue1246 => {
    order => ++$order,
    test_class => [qw(bug forking ssh2)],
  },

};

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

sub list_tests {
  # Check for the required Perl modules:
  #
  #  Net-SSH2
  #  Net-SSH2-SFTP

  my $required = [qw(
    Net::SSH2
    Net::SSH2::SFTP
  )];

  foreach my $req (@$required) {
    eval "use $req";
    if ($@) {
      print STDERR "\nWARNING:\n + Module '$req' not found, skipping all tests\n";

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "Unable to load $req: $@\n";
      }

      return qw(testsuite_empty_test);
    }
  }

  return testsuite_get_runnable_tests($TESTS);
}

sub set_up {
  my $self = shift;
  $self->SUPER::set_up(@_);
  
  # Make sure that mod_sftp does not complain about permissions on the hostkey
  # files.

  my $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  unless (chmod(0400, $rsa_host_key, $dsa_host_key)) {
    die("Can't set perms on $rsa_host_key, $dsa_host_key: $!");
  }
}

sub ssh2_auth_publickey_rsa_sql {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'sftp_sql');

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_data = 'AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7jGx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00ydqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84uO6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMmef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPkByq2pv4VBo953gK7f1AQ==';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$setup->{user}', '$rsa_data');

CREATE TABLE users (
  userid TEXT NOT NULL PRIMARY KEY,
  passwd TEXT,
  uid INTEGER,
  gid INTEGER,
  homedir TEXT,
  shell TEXT
);

EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;
  unlink($db_script);

  my $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

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

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'users usersetfast',
        SQLConnectInfo => $db_file,
        SQLLogFile => $setup->{log_file},
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $setup->{log_file}",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($setup->{user}, $rsa_pub_key,
          $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };
    if ($@) {
      $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 ssh2_auth_publickey_rsa_sql_var_U {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_data = 'AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7jGx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00ydqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84uO6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMmef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPkByq2pv4VBo953gK7f1AQ==';

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'users usersetfast',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%U\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

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

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_data');
INSERT INTO sftpuserkeys (name, key) VALUES ('$config_user', '$rsa_data');

CREATE TABLE users (
  userid TEXT NOT NULL PRIMARY KEY,
  passwd TEXT,
  uid INTEGER,
  gid INTEGER,
  homedir TEXT,
  shell TEXT
);

EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;
  if (scalar(@output) &&
      $ENV{TEST_VERBOSE}) {
    print STDERR "Output: ", join('', @output), "\n";
  }

  unlink($db_script);

  # 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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_rsa_sql_var_u {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_data = 'AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7jGx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00ydqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84uO6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMmef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPkByq2pv4VBo953gK7f1AQ==';

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%u\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

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

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_data');
INSERT INTO sftpuserkeys (name, key) VALUES ('$config_user', '$rsa_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;
  if (scalar(@output) &&
      $ENV{TEST_VERBOSE}) {
    print STDERR "Output: ", join('', @output), "\n";
  }

  unlink($db_script);

  # 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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      # This should fail, since %u will resolve to '-' (the user has not
      # been authenticated yet).
      if ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        die("RSA publickey authentication succeeded unexpectly");
      }

      my ($err_code, $err_name, $err_str) = $ssh2->error();
      my $expected = 'LIBSSH2_ERROR_PUBLICKEY_UNVERIFIED';
      $self->assert($expected eq $err_name,
        test_msg("Expected error name '$expected', got '$err_name'"));

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_dsa_sql {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $dsa_data = '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';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$dsa_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $dsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key');
  my $dsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $dsa_pub_key, $dsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("DSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_rsa_dsa_sql {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_data = 'AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7jGx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00ydqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84uO6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMmef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPkByq2pv4VBo953gK7f1AQ==';
  my $dsa_data = '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';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_data');
INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$dsa_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $dsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key');
  my $dsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $dsa_pub_key, $dsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("DSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_rsa_sql_rfc4716 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_rfc4716_data = '---- BEGIN SSH2 PUBLIC KEY ----
Comment: "2048-bit RSA, converted from OpenSSH by tj@familiar"
AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7j
Gx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00y
dqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84u
O6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMm
ef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPk
Byq2pv4VBo953gK7f1AQ==
---- END SSH2 PUBLIC KEY ----';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_rfc4716_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_rsa_sql_rfc4716_with_continued_line {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_rfc4716_data = '---- BEGIN SSH2 PUBLIC KEY ----
Subject: at93590
Comment: "2048-bit dsa, at93590@isgswapd4n2, Tue Jun 22 2010 15:00:34 \
-0400"
AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7j
Gx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00y
dqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84u
O6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMm
ef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPk
Byq2pv4VBo953gK7f1AQ==
---- END SSH2 PUBLIC KEY ----';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_rfc4716_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_dsa_sql_rfc4716 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $dsa_rfc4716_data = '
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "1024-bit DSA, converted from OpenSSH by tj@familiar"
AAAAB3NzaC1kc3MAAACBAJWsBFKoQ1HdluDnVacaPm+PDPuXAMxwpplFYafjDCye5Y2FZE
jSA8GlLAsEk3XCw6JK2+ciE0I/XXn3+3cAkrdjDKQDRn8IcAANatgLSSjxS9XN4oNzKtrj
Ss3hOhv5ADhwKMcIhwSSf0cVRH9sGjQF3IiJBVnQjz6i//v+97otAAAAFQDqbZr3aGXlY0
Q3UYS3XRNV8ZdWLwAAAIBVZ00AvPF6Kh9GUvXdUAEtNfe1JIThzC4rSc2Fyz3/mQA+GLUH
tEq1ZLpO5D4PCjxHcR7N1tIarqR1f0GGjDGvaPocPNtMpaVxCsLWTCnua5fhIgZ3H24mSz
d/j2TSDqIeV0DWWiWsFOTF+UzbxSDAinfDjLGV0XQ1jRhgoHS3hAAAAIAfONFEnSPWVLEl
0Hv9yAozdWBmkyDijkk0zWWGh17z/Ef4ZRo5bwjsOQCx3c3XswdjDacoqUjep8EMs8MI4L
pOx8SybGOGu8xyW3ceT+rdP1/S62JxBeL7SaIwCH0O9sPqeh44l8OHIKVh6lmyUr1KQFOn
NJ/pRF0JutY1UDEUMQ==
---- END SSH2 PUBLIC KEY ----
';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$dsa_rfc4716_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $dsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key');
  my $dsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $dsa_pub_key, $dsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("DSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_rsa_dsa_sql_rfc4716 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_rfc4716_data = '---- BEGIN SSH2 PUBLIC KEY ----
Comment: "2048-bit RSA, converted from OpenSSH by tj@familiar"
AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7j
Gx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00y
dqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84u
O6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMm
ef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPk
Byq2pv4VBo953gK7f1AQ==
---- END SSH2 PUBLIC KEY ----';
  my $dsa_rfc4716_data = '
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "1024-bit DSA, converted from OpenSSH by tj@familiar"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---- END SSH2 PUBLIC KEY ----
';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_rfc4716_data');
INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$dsa_rfc4716_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $dsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key');
  my $dsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_dsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $dsa_pub_key, $dsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("DSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_multiple_keys_one_row_bug3942 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_rfc4716_data1 = '---- BEGIN SSH2 PUBLIC KEY ----
Comment: "2048-bit RSA, converted from OpenSSH by tj@familiar"
AAAAB3NzaC1yc2EAAAABIwAAAQEAvEm0Jex6M9GBulB6KsOAUR8uk1CCKjx1o2GV8qkOMP
Im3sL5642FD2ECoA73zcWs5XktcO72lrI8QxhQmz0Ob7PjobjQq209QoivUsQz9UnupDW1
zd9V7tH+ibmslD+LnglfML0WnGLsmvmY3VVJ1dKgXVrxDszhKIWc/QEs2QD9UzmQweBV/7
/tYPfVTUnW2THa66zACPdGTqtncy1MxkauSluHsLJ7eDf3g5Vx9BbxgDlavpEa9uuHjEqx
An+P2JFm2EKeuqg3rtLNzTt/u4XB/zSEfl/ua1zynSnOxghpE/QDGjuj9hrgGp9OXyfuOZ
gG0qd5fdWj6kccmG4PXw==
---- END SSH2 PUBLIC KEY ----
';

  my $rsa_rfc4716_data2 = '---- BEGIN SSH2 PUBLIC KEY ----
Comment: "2048-bit RSA, converted from OpenSSH by tj@familiar"
AAAAB3NzaC1yc2EAAAABIwAAAQEA1MDOdQ8ddQGd0hNPbO14zFAD1/c0Ontkw3egGGuVDm
48VTnDNWGWbH5CirShUhjfLzxZkStyepdKFsYXZOeyBaHdqMfEhXhWZ+M7z9B9rUBM6R7W
G34v7pzd8bOYDbff25PCITNYk9m/2ZGrFgAK5EChZ9jtxmaqhYWl6xKLilXYkmhId66TTq
MgPUrM1sH9QeFV2axQmK1SVEkSzYTaY8WePds5D5cmZLmABAT3UYPQCcrOahISyKazJ9E+
YjoMl9GoniSEiHTPK+XfyND83zIihJO16VxUVUMStR5yHBd133SVar4yKo8fv9wfgOxDcf
GLxgWrkgXv/3qR/8zNaQ==
---- END SSH2 PUBLIC KEY ----
';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_rfc4716_data1$rsa_rfc4716_data2');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;
  if (scalar(@output) &&
      $ENV{TEST_VERBOSE}) {
    print STDERR "Output: ", join('', @output), "\n";
  }

  if ($? != 0) {
    die("'$cmd' failed");
  }

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa2048_key2');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa2048_key2.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(3);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub get_sessions {
  my $db_file = shift;
  my $where = shift;

  my $sql = "SELECT user, key_fingerprint, key_fingerprint_algo FROM sftpsessions";
  if ($where) {
    $sql .= " WHERE $where";
  }

  my $cmd = "sqlite3 $db_file \"$sql\"";

  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my $res = join('', `$cmd`);
  chomp($res);

  # The default sqlite3 delimiter is '|'
  return split(/\|/, $res);
}

sub ssh2_auth_publickey_rsa_sql_fp_env_vars {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_data = 'AAAAB3NzaC1yc2EAAAABIwAAAQEAzJ1CLwnVP9mUa8uyM+XBzxLxsRvGz4cS59aPTgdw7jGx1jCvC9ya400x7ej5Q4ubwlAAPblXzG5GYv2ROmYQ1DIjrhmR/61tDKUvAAZIgtvLZ00ydqqpq5lG4ubVJ4gW6sxbPfq/X12kV1gxGsFLUJCgoYInZGyIONrnvmQjFIfIx+mQXaK84uO6w0CT6KhRWgonajMrlO6P8O7qr80rFmOZsBNIMooyYrGTaMyxVsQK2SY+VKbXWFC+2HMmef62n+02ohAOBKtOsSOn8HE2wi7yMA0g8jRTd8kZcWBIkAhizPvl8pqG1F0DCmLn00rhPkByq2pv4VBo953gK7f1AQ==';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_data');

CREATE TABLE sftpsessions (
  user TEXT NOT NULL PRIMARY KEY,
  key_fingerprint TEXT,
  key_fingerprint_algo TEXT
);
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => [
        'SQLAuthenticate off',
        "SQLConnectInfo $db_file",
        "SQLLogFile $log_file",
        'SQLNamedQuery get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
        'SQLNamedQuery log_user_key FREEFORM "INSERT INTO sftpsessions (user, key_fingerprint, key_fingerprint_algo) VALUES (\'%u\', \'%{env:SFTP_USER_PUBLICKEY_FINGERPRINT}\', \'%{env:SFTP_USER_PUBLICKEY_FINGERPRINT_ALGO}\')"',
        'SQLLog INIT log_user_key',
      ],

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      my $sftp = $ssh2->sftp();
      unless ($sftp) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't use SFTP on SSH2 server: [$err_name] ($err_code) $err_str");
      }

      $sftp = undef;

      $ssh2->disconnect();
    };

    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);
  }

  my ($login, $key_fp, $key_fp_algo) = get_sessions($db_file,
    "user = \'$user\'");

  my $expected;

  $expected = $user;
  $self->assert($expected eq $login,
    test_msg("Expected user '$expected', got '$login'"));

  # The value here depends on the version of OpenSSL we use
  my $expected_md5 = 'b8:ce:c2:e8:e8:9c:f7:93:11:a4:79:c2:48:64:19:45';
  my $expected_sha256 = 'ad:13:cf:f3:07:f4:1f:20:95:44:e5:71:d9:e9:3c:9c:fa:4b:2a:d1:0d:90:fb:1f:a5:0e:77:ea:c1:91:f9:37';
  $self->assert($expected_md5 eq $key_fp || $expected_sha256 eq $key_fp,
    test_msg("Expected key fingerprint '$expected_md5' or '$expected_sha256', got '$key_fp'"));

  $expected_md5 = 'MD5';
  $expected_sha256 = 'SHA256';
  $self->assert($expected_md5 eq $key_fp_algo || $expected_sha256 eq $key_fp_algo,
    test_msg("Expected '$expected_md5' or '$expected_sha256', got '$key_fp_algo'"));

  unlink($log_file, $db_file);
}

sub ssh2_auth_publickey_rsa_sql_rfc4716_overlong_comment_bug4155 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_rfc4716_data = '---- BEGIN SSH2 PUBLIC KEY ----
Comment: "2048-bit RSA, converted from OpenSSH by jbaird@fc-qaftp01.corp.follett.com"
AAAAB3NzaC1yc2EAAAABIwAAAQEA13H33uYHCPKX+any43mlzsjxrZuFpgdACmCuPa90Kh
Xe6hIg6rx5nNLMOuKHfpMEshCQnj9zmtjSGyLZ9ufJv6Wg3SSHTIKQW2HtR9MLM8zzVXDE
pcsWQUbwAs7mBdYKlOJxFP3J4PMVAiJe+GnQ889nXkdixB4SRU6LCfrPwg5c1Ho5FOPYys
eAxMNjgsR1n8NUDg5COxlktnR+Tunlu/S/7TgcLi+ugvIIEB5vlhaHEZoPIpz2fl15l9FY
ueYvzU73ESvUgdNQE16RmKpdmr6WwN9g5mG+tQCMrhWCkk4IAo5gUlx/Go1Osgp2r0ouj1
MSJJkwubawXDDPj/RUjw==
---- END SSH2 PUBLIC KEY ----';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_rfc4716_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key_bug4155');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key_bug4155.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      unless ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("RSA publickey authentication failed: [$err_name] ($err_code) $err_str");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_auth_publickey_rsa_sql_invalid_format_bug4350 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};

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

  my $log_file = test_get_logfile();

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

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

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $rsa_data = 'foobar';
  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$user', '$rsa_data');
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  # 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 $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key_bug4155');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key_bug4155.pub');

  my $config = {
    PidFile => $pid_file,
    ScoreboardFile => $scoreboard_file,
    SystemLog => $log_file,
    TraceLog => $log_file,
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20',

    AuthUserFile => $auth_user_file,
    AuthGroupFile => $auth_group_file,

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'off',
        SQLConnectInfo => $db_file,
        SQLLogFile => $log_file,
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $log_file",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  my ($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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      if ($ssh2->auth_publickey($user, $rsa_pub_key, $rsa_priv_key)) {
        die("RSA publickey authentication succeeded unexpectedly");
      }

      $ssh2->disconnect();
    };

    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, $db_file);
}

sub ssh2_ext_auth_publickey_openssh_ed25519_sql_bug4221 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'sftp_sql');

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $ed25519_data = 'AAAAC3NzaC1lZDI1NTE5AAAAIHwX+6Ly9J2q4YWQaK6BGtXyp7KwMmAsXy8nQ7L6JDtQ';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$setup->{user}', '$ed25519_data');

CREATE TABLE users (
  userid TEXT NOT NULL PRIMARY KEY,
  passwd TEXT,
  uid INTEGER,
  gid INTEGER,
  homedir TEXT,
  shell TEXT
);
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  my $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $openssh_ed25519_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_openssh_ed25519_key');
  my $openssh_ed25519_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_openssh_ed25519_key.pub');

  my $ssh_config = File::Spec->rel2abs("$tmpdir/ssh.conf");
  if (open(my $fh, "> $ssh_config")) {
    print $fh <<EOC;
PubkeyAcceptedKeyTypes ssh-ed25519
EOC
    unless (close($fh)) {
      die("Can't write $ssh_config: $!");
    }

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

  my $batch_file = File::Spec->rel2abs("$tmpdir/sftp-batch.conf");
  if (open(my $fh, "> $batch_file")) {
    print $fh "ls\n";

    unless (close($fh)) {
      die("Can't write $batch_file: $!");
    }

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

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 ssh2:20 sftp:20',

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

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'users usersetfast',
        SQLConnectInfo => $db_file,
        SQLLogFile => $setup->{log_file},
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $setup->{log_file}",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      # libssh2, and thus Net::SSH2, don't support ECC/ECDH yet.  So we
      # use the external sftp(1) client (e.g. OpenSSH-7.9p1) to test.

      my $sftp = '/Users/tj/local/openssh-7.9p1/bin/sftp';

      my @cmd = (
        $sftp,
        '-F',
        $ssh_config,
        '-oBatchMode=yes',
        '-oCheckHostIP=no',
        '-oCompression=yes',
        "-oPort=$port",
        "-oIdentityFile=$openssh_ed25519_priv_key",
        '-oPubkeyAuthentication=yes',
        '-oStrictHostKeyChecking=no',
        '-vvv',
        '-b',
        $batch_file,
        "$setup->{user}\@127.0.0.1",
      );

      my $sftp_rh = IO::Handle->new();
      my $sftp_wh = IO::Handle->new();
      my $sftp_eh = IO::Handle->new();

      $sftp_wh->autoflush(1);

      sleep(1);

      local $SIG{CHLD} = 'DEFAULT';

      # Make sure that the perms on the priv key are what OpenSSH wants
      unless (chmod(0400, $openssh_ed25519_priv_key)) {
        die("Can't set perms on $openssh_ed25519_priv_key to 0400: $!");
      }

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "Executing: ", join(' ', @cmd), "\n";
      }

      my $sftp_pid = open3($sftp_wh, $sftp_rh, $sftp_eh, @cmd);
      waitpid($sftp_pid, 0);
      my $exit_status = $?;

      # Restore the perms on the priv key
      unless (chmod(0644, $openssh_ed25519_priv_key)) {
        die("Can't set perms on $openssh_ed25519_priv_key to 0644: $!");
      }

      my ($res, $errstr);
      if ($exit_status >> 8 == 0) {
        $errstr = join('', <$sftp_eh>);
        $res = 0;

      } else {
        $errstr = join('', <$sftp_eh>);
        if ($ENV{TEST_VERBOSE}) {
          print STDERR "Stderr: $errstr\n";
        }

        $res = 1;
      }

      unless ($res == 0) {
        die("Can't list files on server: $errstr");
      }
    };
    if ($@) {
      $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 ssh2_ext_auth_publickey_openssh_ed25519_sql_rfc4716_bug4221 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'sftp_sql');

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");

  my $ed25519_rfc4716_data = '---- BEGIN SSH2 PUBLIC KEY ----
Comment: "256-bit ED25519, converted by tj@golem.local from OpenSSH"
AAAAC3NzaC1lZDI1NTE5AAAAIHwX+6Ly9J2q4YWQaK6BGtXyp7KwMmAsXy8nQ7L6JDtQ
---- END SSH2 PUBLIC KEY ----';

  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB NOT NULL
);

INSERT INTO sftpuserkeys (name, key) VALUES ('$setup->{user}', '$ed25519_rfc4716_data');

CREATE TABLE users (
  userid TEXT NOT NULL PRIMARY KEY,
  passwd TEXT,
  uid INTEGER,
  gid INTEGER,
  homedir TEXT,
  shell TEXT
);
EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;

  unlink($db_script);

  my $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $openssh_ed25519_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_openssh_ed25519_key');
  my $openssh_ed25519_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_openssh_ed25519_key.pub');

  my $ssh_config = File::Spec->rel2abs("$tmpdir/ssh.conf");
  if (open(my $fh, "> $ssh_config")) {
    print $fh <<EOC;
PubkeyAcceptedKeyTypes ssh-ed25519
EOC
    unless (close($fh)) {
      die("Can't write $ssh_config: $!");
    }

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

  my $batch_file = File::Spec->rel2abs("$tmpdir/sftp-batch.conf");
  if (open(my $fh, "> $batch_file")) {
    print $fh "ls\n";

    unless (close($fh)) {
      die("Can't write $batch_file: $!");
    }

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

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 ssh2:20 sftp:20',

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

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'users usersetfast',
        SQLConnectInfo => $db_file,
        SQLLogFile => $setup->{log_file},
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $setup->{log_file}",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      # libssh2, and thus Net::SSH2, don't support ECC/ECDH yet.  So we
      # use the external sftp(1) client (e.g. OpenSSH-7.9p1) to test.

      my $sftp = '/Users/tj/local/openssh-7.9p1/bin/sftp';

      my @cmd = (
        $sftp,
        '-F',
        $ssh_config,
        '-oBatchMode=yes',
        '-oCheckHostIP=no',
        '-oCompression=yes',
        "-oPort=$port",
        "-oIdentityFile=$openssh_ed25519_priv_key",
        '-oPubkeyAuthentication=yes',
        '-oStrictHostKeyChecking=no',
        '-vvv',
        '-b',
        $batch_file,
        "$setup->{user}\@127.0.0.1",
      );

      my $sftp_rh = IO::Handle->new();
      my $sftp_wh = IO::Handle->new();
      my $sftp_eh = IO::Handle->new();

      $sftp_wh->autoflush(1);

      sleep(1);

      local $SIG{CHLD} = 'DEFAULT';

      # Make sure that the perms on the priv key are what OpenSSH wants
      unless (chmod(0400, $openssh_ed25519_priv_key)) {
        die("Can't set perms on $openssh_ed25519_priv_key to 0400: $!");
      }

      if ($ENV{TEST_VERBOSE}) {
        print STDERR "Executing: ", join(' ', @cmd), "\n";
      }

      my $sftp_pid = open3($sftp_wh, $sftp_rh, $sftp_eh, @cmd);
      waitpid($sftp_pid, 0);
      my $exit_status = $?;

      # Restore the perms on the priv key
      unless (chmod(0644, $openssh_ed25519_priv_key)) {
        die("Can't set perms on $openssh_ed25519_priv_key to 0644: $!");
      }

      my ($res, $errstr);
      if ($exit_status >> 8 == 0) {
        $errstr = join('', <$sftp_eh>);
        $res = 0;

      } else {
        $errstr = join('', <$sftp_eh>);
        if ($ENV{TEST_VERBOSE}) {
          print STDERR "Stderr: $errstr\n";
        }

        $res = 1;
      }

      unless ($res == 0) {
        die("Can't list files on server: $errstr");
      }
    };
    if ($@) {
      $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 ssh2_auth_publickey_rsa_sql_null_values_issue1246 {
  my $self = shift;
  my $tmpdir = $self->{tmpdir};
  my $setup = test_setup($tmpdir, 'sftp_sql');

  my $db_file = File::Spec->rel2abs("$tmpdir/sftp.db");
  my $db_script = File::Spec->rel2abs("$tmpdir/sftp.sql");

  my $fh;
  if (open($fh, "> $db_script")) {
    print $fh <<EOS;
CREATE TABLE sftpuserkeys (
  name TEXT NOT NULL PRIMARY KEY,
  key BLOB
);

INSERT INTO sftpuserkeys (name) VALUES ('$setup->{user}');

CREATE TABLE users (
  userid TEXT NOT NULL PRIMARY KEY,
  passwd TEXT,
  uid INTEGER,
  gid INTEGER,
  homedir TEXT,
  shell TEXT
);

EOS
    unless (close($fh)) {
      die("Can't write $db_script: $!");
    }

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

  my $cmd = "sqlite3 $db_file < $db_script";
  if ($ENV{TEST_VERBOSE}) {
    print STDERR "Executing sqlite3: $cmd\n";
  }

  my @output = `$cmd`;
  unlink($db_script);

  my $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key');
  my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key');

  my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key');
  my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub');

  my $config = {
    PidFile => $setup->{pid_file},
    ScoreboardFile => $setup->{scoreboard_file},
    SystemLog => $setup->{log_file},
    TraceLog => $setup->{log_file},
    Trace => 'DEFAULT:10 ssh2:20 sftp:20 scp:20 sql:20',

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

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

      'mod_sql_sqlite.c' => {
        SQLAuthenticate => 'users usersetfast',
        SQLConnectInfo => $db_file,
        SQLLogFile => $setup->{log_file},
        SQLNamedQuery => 'get-user-authorized-keys SELECT "key FROM sftpuserkeys WHERE name = \'%{0}\'"',
      },

      'mod_sftp.c' => [
        "SFTPEngine on",
        "SFTPLog $setup->{log_file}",
        "SFTPHostKey $rsa_host_key",
        "SFTPHostKey $dsa_host_key",
        "SFTPAuthorizedUserKeys sql:/get-user-authorized-keys",
      ],
    },
  };

  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: $!");
  }

  require Net::SSH2;

  my $ex;

  # Fork child
  $self->handle_sigchld();
  defined(my $pid = fork()) or die("Can't fork: $!");
  if ($pid) {
    eval {
      my $ssh2 = Net::SSH2->new();

      sleep(1);

      unless ($ssh2->connect('127.0.0.1', $port)) {
        my ($err_code, $err_name, $err_str) = $ssh2->error();
        die("Can't connect to SSH2 server: [$err_name] ($err_code) $err_str");
      }

      if ($ssh2->auth_publickey($setup->{user}, $rsa_pub_key,
          $rsa_priv_key)) {
        die("RSA publickey authentication succeeded unexpectedly");
      }

      $ssh2->disconnect();
    };
    if ($@) {
      $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;
