#!/usr/bin/perl -w
use strict;
use warnings;

use Data::Dumper;
use Digest::HMAC_MD5 qw(hmac_md5_hex);
use English qw/ -no_match_vars /;
use File::Path;
use Scalar::Util qw( openhandle );
use Test::More qw(no_plan);

use lib 't';
use lib 'lib';
use Qpsmtpd::Constants;
use_ok('Test::Qpsmtpd');
use_ok('Qpsmtpd::Auth');

my ($smtpd, $conn) = Test::Qpsmtpd->new_conn();

ok($smtpd, "get new connection ($smtpd)");
isa_ok($conn, 'Qpsmtpd::Connection', "get new connection");

my $r;
my $user      = 'good@example.com';
my $pass      = 'good_pass';
my $enc_plain = Qpsmtpd::Auth::e64(join("\0", '', $user, $pass));

# get_auth_details_plain: plain auth method handles credentials properly
my ($loginas, $ruser, $passClear) =
  Qpsmtpd::Auth::get_auth_details_plain($smtpd, $enc_plain);
cmp_ok($user,      'eq', $user, "get_auth_details_plain, user");
cmp_ok($passClear, 'eq', $pass, "get_auth_details_plain, password");

my $bad_auth = Qpsmtpd::Auth::e64(join("\0", 'loginas', 'user@foo', 'passer'));
($loginas, $ruser, $passClear) =
  Qpsmtpd::Auth::get_auth_details_plain($smtpd, $bad_auth);
ok(!$loginas,   "get_auth_details_plain, loginas -");
ok(!$ruser,     "get_auth_details_plain, user -");
ok(!$passClear, "get_auth_details_plain, pass -");

# these plugins test against whicever loaded plugin provides their selected
# auth type. Right now, they end up testing against auth_flat_file.

# PLAIN
$r = Qpsmtpd::Auth::SASL($smtpd, 'plain', $enc_plain);
is( return_code($r), 'OK', 'plain auth' );

if ($ENV{QPSMTPD_DEVELOPER} && is_interactive()) {

    # same thing, but must be entered interactively
    print "answer: $enc_plain\n";
    $r = Qpsmtpd::Auth::SASL($smtpd, 'plain', '');
    is( return_code($r), 'OK', 'SASL, plain' );
}

# LOGIN

if ($ENV{QPSMTPD_DEVELOPER} && is_interactive()) {

    my $enc_user = Qpsmtpd::Auth::e64($user);
    my $enc_pass = Qpsmtpd::Auth::e64($pass);

    # get_base64_response
    print "answer: $enc_user\n";
    $r = Qpsmtpd::Auth::get_base64_response($smtpd, 'Username');
    cmp_ok($r, 'eq', $user, "get_base64_response +");

    # get_auth_details_login
    print "answer: $enc_pass\n";
    ($ruser, $passClear) =
      Qpsmtpd::Auth::get_auth_details_login($smtpd, $enc_user);
    cmp_ok($ruser,     'eq', $user, "get_auth_details_login, user +");
    cmp_ok($passClear, 'eq', $pass, "get_auth_details_login, pass +");

    print "encoded pass: $enc_pass\n";
    $r = Qpsmtpd::Auth::SASL($smtpd, 'login', $enc_user);
    is( return_code($r), 'OK', 'SASL, login' );
}

# CRAM-MD5

if ($ENV{QPSMTPD_DEVELOPER} && is_interactive()) {
    print "starting SASL\n";

  # since we don't have bidirection communication here, we pre-generate a ticket
    my $ticket =
      sprintf('<%x.%x@%s>', rand(1000000), time(), $smtpd->config('me'));
    my $hash_pass = hmac_md5_hex($ticket, $pass);
    my $enc_answer = Qpsmtpd::Auth::e64(join(' ', $user, $hash_pass));
    print "answer: $enc_answer\n";
    my (@r) = Qpsmtpd::Auth::get_auth_details_cram_md5($smtpd, $ticket);
    cmp_ok($r[0], 'eq', $ticket,    "get_auth_details_cram_md5, ticket");
    cmp_ok($r[1], 'eq', $user,      "get_auth_details_cram_md5, user");
    cmp_ok($r[2], 'eq', $hash_pass, "get_auth_details_cram_md5, passHash");

    #warn Data::Dumper::Dumper(\@r);

  # this isn't going to work without bidirection communication to get the ticket
  #$r = Qpsmtpd::Auth::SASL($smtpd, 'cram-md5' );
  #is( return_code($r), 'OK', 'login auth' );
}

sub is_interactive {

## no critic
    # borrowed from IO::Interactive
    my ($out_handle) = (@_, select);    # Default to default output handle

    # Not interactive if output is not to terminal...
    return if not -t $out_handle;

    # If *ARGV is opened, we're interactive if...
    if (openhandle * ARGV) {

        # ...it's currently opened to the magic '-' file
        return -t *STDIN if defined $ARGV && $ARGV eq '-';

        # ...it's at end-of-file and the next file is the magic '-' file
        return @ARGV > 0 && $ARGV[0] eq '-' && -t *STDIN if eof *ARGV;

        # ...it's directly attached to the terminal
        return -t *ARGV;
    }

    # If *ARGV isn't opened, it will be interactive if *STDIN is attached
    # to a terminal and either there are no files specified on the command line
    # or if there are files and the first is the magic '-' file
    return -t *STDIN && (@ARGV == 0 || $ARGV[0] eq '-');
}

__END__

if ( ref $r ) {
} else {
    warn $r;
}
#print Data::Dumper::Dumper($conn);
#print Data::Dumper::Dumper($smtpd);