<?php

/*

* Nucleus: PHP/MySQL Weblog CMS (http://nucleuscms.org/)

* Copyright (C) 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

* @license http://nucleuscms.org/license.txt GNU General Public License

* @copyright Copyright (C) 2002-2009 The Nucleus Group

* @version $Id$

*/

header('Pragma: no-cache');

$CONF = array();

$CONF['Self'] = 'xml-rss2.php';

include('./config.php');

if (!$CONF['DisableSite']) {

// get feed into $feed

ob_start();

selectSkin('feeds/rss20');

selector();

$feed = ob_get_contents();

ob_end_clean();

// create ETAG (hash of feed)

// (HTTP_IF_NONE_MATCH has quotes around it)

$eTag = '"' . md5($feed) . '"';

header('Etag: ' . $eTag);

// compare Etag to what we got

if ($eTag == serverVar('HTTP_IF_NONE_MATCH') ) {

header('HTTP/1.0 304 Not Modified');

header('Content-Length: 0');

} else {

if ((strtolower(_CHARSET) != 'utf-8') && (function_exists('mb_convert_encoding'))) {

$feed = mb_convert_encoding($feed, "UTF-8", _CHARSET);

}

header("Content-Type: application/xml");

// dump feed

echo $feed;

}

} else {

// output empty RSS file...

// (because site is disabled)

echo '<' . '?xml version="1.0" encoding="' . _CHARSET . '"?' . '>';

?>

<rss version="2.0">

<channel>

<title><?php echo hsc($CONF['SiteName']); ?></title>

<link><?php echo hsc($CONF['IndexURL']); ?></link>

<description></description>

<docs>http://backend.userland.com/rss</docs>

</channel>

</rss>

<?php

}