wxr.php

<?

/**
  * Nucleus: PHP/MySQL Weblog CMS (http://nucleuscms.org/)
  * Copyright (C) 2002 The Nucleus Group
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
  * of the License, or (at your option) any later version.
  * (see nucleus/documentation/index.html#license for more info)
  *
  * Nucleus RSS syndication channel skin
  */

header("Pragma: no-cache");

// $CONF['Self'] = $PHP_SELF;
$CONF['Self'] = "wxr.php";

include('config.php');

if (!$CONF['DisableSite']) {
        // get feed into $feed
        ob_start();
                selectSkin('wxr');
                selector();
        $feed = ob_get_contents();
        ob_end_clean();

        // create ETAG (hash of feed)
        $eTag = md5($feed);
        header('Etag: "'.$eTag.'"');

        // compare Etag to what we got
        // TODO: serverVar doesn't seem to work :((
        if ($eTag == serverVar('HTTP_IF_NONE_MATCH')) {
                header("HTTP/1.0 304 Not Modified");
                header('Content-Length: 0');
        } else {
                // dump feed
                echo $feed;
        }

} else {
        // output empty RSS file...
        // (because site is disabled)

        echo '<' . '?xml version="1.0" encoding="ISO-8859-1"?' . '>';

        ?>
        <rss version="2.0">
          <channel>
            <title><?=htmlspecialchars($CONF['SiteName'])?></title>
            <link><?=htmlspecialchars($CONF['IndexURL'])?></link>
            <description></description>
            <docs>http://backend.userland.com/rss</docs>
          </channel>
        </rss>
        <?
}

?>