Origo OS

#!/usr/bin/perl -w

# mod_auth_tkt sample logout script

# 

# Note that this needs script needs to be available locally on all domains 

#   if using multiple domains (unlike login.cgi, which only needs to exist

#   on one domain).

#

use File::Basename;

#use lib dirname($ENV{SCRIPT_FILENAME});

use lib "./";

use Apache::AuthTkt 0.03;

use AuthTktConfig;

use CGI qw(:standard);

use URI::Escape;

use URI;

use Data::Dumper;

use strict;

# Clear up tainted environment

$ENV{PATH} = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin';

delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};

# ------------------------------------------------------------------------

# Configuration settings in AuthTktConfig.pm

# ------------------------------------------------------------------------

# Main code begins

my $at = Apache::AuthTkt->new(conf => $ENV{MOD_AUTH_TKT_CONF});

my $q = CGI->new;

my ($server_name, $server_port) = split /:/, $ENV{HTTP_HOST};

$server_name ||= $ENV{SERVER_NAME};

$server_port ||= $ENV{SERVER_PORT};

$back = $AuthTktConfig::FIXED_BACK_LOCATION if $AuthTktConfig::FIXED_BACK_LOCATION;

$back ||= $q->cookie($at->back_cookie_name) if $at->back_cookie_name;

$back ||= $q->param($at->back_arg_name) if $at->back_arg_name;

$back = $AuthTktConfig::DEFAULT_BACK_LOCATION if $AuthTktConfig::DEFAULT_BACK_LOCATION;

#$back ||= $ENV{HTTP_REFERER} if $ENV{HTTP_REFERER} && $AuthTktConfig::BACK_REFERER;

if ($back && $back =~ m!^/!) {

  my $hostname = $server_name;

  my $port = $server_port;

  $hostname .= ':' . $port if $port && $port != 80 && $port != 443;

  $back = sprintf "http%s://%s%s", ($port == 443 ? 's' : ''), $hostname, $back;

} elsif ($back && $back !~ m/^http/i) {

  $back = 'http://' . $back;

}

$back = uri_unescape($back) if $back =~ m/^https?%3A%2F%2F/;

my $back_html = escapeHTML($back) if $back;

# Logout by resetting the auth cookie

#my $user = $ENV{'REMOTE_USER'};

#my $account = $q->cookie('steamaccount') if ($q); # User is requesting access to another account

#if ($account ne $user) {

#    $user = $account;

#}

#$user = $1 if $user =~ /(.+)/; #untaint

#`pkill -TERM -f "$user~ui_update.cgi"`; # Kill ui_update which in turn removes tasks from /tmp

my $session = $q->param('s');

`pkill -f ~$session.tasks` if ($session);

my $redirected = 0;

if ( $q->param('js') ) {

  print $q->header(-content_type => "application/javascript", -cookie => \@cookies);

  print qq|document.cookie = '| . $at->cookie_name . qq|=; Domain=$AUTH_DOMAIN; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';\n|;

  exit;

} elsif ($back) {

  my $b = URI->new($back);

  # If $back domain doesn't match $AUTH_DOMAIN, add ticket reset to back

  if (!($b->host =~ /$AUTH_DOMAIN/i) && !($AUTH_DOMAIN !~ /$b->host/i)) {

    $back .= $b->query ? '&' : '?';

    $back .= $at->cookie_name . '=';

  }

  if ($AuthTktConfig::DEBUG) {

    print $q->header(-cookie => \@cookies);

  } else {

    # Set (local) cookie, and redirect to $back

    print $q->header(

      -cookie => \@cookies,

      -location => $back,

    );

    # For some reason, a Location: redirect doesn't seem to then see the cookie,

    #   but a meta refresh one does - weird

    print $q->start_html(

      -head => meta({

        -http_equiv => 'Pragma', -content => "no-cache"

      }),

#      -head => meta({

#        -http_equiv => 'refresh', -content => "0;URL=$back"

#        -http_equiv => 'refresh', -content => "0;URL=login"

#      })

    );

#    $redirected = 1;

  }

}

# If no $back, just set the auth cookie and hope for the best

else {

  print $q->header(-cookie => \@cookies);

}

my @style = ();

@style = ( '-style' => { src => $AuthTktConfig::STYLESHEET } )

  if $AuthTktConfig::STYLESHEET;

my $title = $AuthTktConfig::TITLE || "Logout Page";

unless ($redirected) {

  # If here, either some kind of error or no back ref found

  print $q->start_html(

      -head => meta({

        -http_equiv => 'Pragma', -content => "no-cache"

      }),

      -title => $title,

      @style,

    );

  print <<EOD;

<div align="center">

<!-- h1>$title</h1 -->

EOD

  if ($AuthTktConfig::DEBUG) {

    print <<EOD;

<pre>

back: $back

back_html: $back_html

</pre>

EOD

  }

  print <<EOD;

<p>You are now logged out of $AUTH_DOMAIN.</p>

<!-- script>document.location="login";</script -->

EOD

  print qq(<p><a href="$back_html">Previous Page</a></p>\n) if $back_html;

  print <<EOD;

</div>

</body>

</html>

EOD

}

# vim:sw=2:sm:cin