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<?php

////////////////////////////////////////////////////////////////////////////////
//                                                                            //
//   Copyright (C) 2006  Phorum Development Team                              //
//   http://www.phorum.org                                                    //
//                                                                            //
//   This program is free software. You can redistribute it and/or modify     //
//   it under the terms of either the current Phorum License (viewable at     //
//   phorum.org) or the Phorum License that was distributed with this file    //
//                                                                            //
//   This program is distributed in the hope that it will be useful,          //
//   but WITHOUT ANY WARRANTY, without even the implied warranty of           //
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     //
//                                                                            //
//   You should have received a copy of the Phorum License                    //
//   along with this program.                                                 //
////////////////////////////////////////////////////////////////////////////////
define('phorum_page','version_iframe');

// Check for new versions of the Phorum software. Only do this once by
// issuing a cookie which remembers whether we need to upgrade or not.
// This file is included within an <iframe> in the admin interface header,
// so downtime of the phorum.org website won't affect the performance of
// the admin interface for Phorum users.

require_once('./common.php');

if (isset($_COOKIE["phorum_upgrade_available"])) {
    $upgrade_available = $_COOKIE["phorum_upgrade_available"];
} else {
    require_once('./include/version_functions.php');
    $releases = phorum_find_upgrades();
    if (isset($releases["stable"]) && $releases["stable"]["upgrade"]) {
        $upgrade_available = $releases["stable"]["version"];
    } elseif (isset($releases["development"]) && $releases["development"]["upgrade"]) {
        $upgrade_available = $releases["development"]["version"];
    } else {
        $upgrade_available = 0;
    }
}
setcookie("phorum_upgrade_available", $upgrade_available, 0, 
          $PHORUM["session_path"], $PHORUM["session_domain"]);

?>
<html>
  <head>
    <title>Phorum upgrade notification</title>
    <style type="text/css">
    body {
        background-color: white;
        margin: 0px;
        padding: 0px;
    }
    .notify_upgrade {
        text-align: center;
        border: 2px solid black;
        background-color: #e00000;
        padding: 3px;
        margin: 0px;
    }
    .notify_upgrade a {
        font-family: Lucida Sans Unicode,Lucida Grand,Verdana,Arial,Helvetica;
        color: white;
        font-weight: bold;
        font-size: 13px;
    }
    .notify_noupgrade {
        text-align: center;
        border: 1px solid black;
        padding: 3px;
        margin: 0px;
        font-family: Lucida Sans Unicode,Lucida Grand,Verdana,Arial,Helvetica;
        font-size: 13px;
    }
    </style>
  </head>
  <body>
  <?php if ($upgrade_available) { ?>
    <div class="notify_upgrade">
      <a target="_top" href="admin.php?module=version">New Phorum version <?php print $upgrade_available ?> available!</a>
    </div>
  <?php } else { ?>
    <div class="notify_noupgrade">
      Your Phorum installation is up to date
    </div>
  <?php } ?>
  </body>
</html>