ru-se.com

rss.php (22978B)

---

 <?php
 /**
  * MagpieRSS: a simple RSS integration tool
  *
  * A compiled file for RSS syndication
  *
  * @author Kellan Elliott-McCrea <kellan@protest.net>
  * @version 0.51
  * @license GPL
  *
  * @package External
  * @subpackage MagpieRSS
  * @deprecated 3.0.0 Use SimplePie instead.
  */
 
 /**
  * Deprecated. Use SimplePie (class-simplepie.php) instead.
  */
 _deprecated_file( basename( __FILE__ ), '3.0.0', WPINC . '/class-simplepie.php' );
 
 /**
  * Fires before MagpieRSS is loaded, to optionally replace it.
  *
  * @since 2.3.0
  * @deprecated 3.0.0
  */
 do_action( 'load_feed_engine' );
 
 /** RSS feed constant. */
 define('RSS', 'RSS');
 define('ATOM', 'Atom');
 define('MAGPIE_USER_AGENT', 'WordPress/' . $GLOBALS['wp_version']);
 
 class MagpieRSS {
 	var $parser;
 	var $current_item	= array();	// item currently being parsed
 	var $items			= array();	// collection of parsed items
 	var $channel		= array();	// hash of channel fields
 	var $textinput		= array();
 	var $image			= array();
 	var $feed_type;
 	var $feed_version;
 
 	// parser variables
 	var $stack				= array(); // parser stack
 	var $inchannel			= false;
 	var $initem 			= false;
 	var $incontent			= false; // if in Atom <content mode="xml"> field
 	var $intextinput		= false;
 	var $inimage 			= false;
 	var $current_field		= '';
 	var $current_namespace	= false;
 
 	//var $ERROR = "";
 
 	var $_CONTENT_CONSTRUCTS = array('content', 'summary', 'info', 'title', 'tagline', 'copyright');
 
 	/**
 	 * PHP5 constructor.
 	 */
 	function __construct( $source ) {
 
 		# Check if PHP xml isn't compiled
 		#
 		if ( ! function_exists('xml_parser_create') ) {
 			return trigger_error( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." );
 		}
 
 		$parser = xml_parser_create();
 
 		$this->parser = $parser;
 
 		# pass in parser, and a reference to this object
 		# set up handlers
 		#
 		xml_set_object( $this->parser, $this );
 		xml_set_element_handler($this->parser,
 				'feed_start_element', 'feed_end_element' );
 
 		xml_set_character_data_handler( $this->parser, 'feed_cdata' );
 
 		$status = xml_parse( $this->parser, $source );
 
 		if (! $status ) {
 			$errorcode = xml_get_error_code( $this->parser );
 			if ( $errorcode != XML_ERROR_NONE ) {
 				$xml_error = xml_error_string( $errorcode );
 				$error_line = xml_get_current_line_number($this->parser);
 				$error_col = xml_get_current_column_number($this->parser);
 				$errormsg = "$xml_error at line $error_line, column $error_col";
 
 				$this->error( $errormsg );
 			}
 		}
 
 		xml_parser_free( $this->parser );
 		unset( $this->parser );
 
 		$this->normalize();
 	}
 
 	/**
 	 * PHP4 constructor.
 	 */
 	public function MagpieRSS( $source ) {
 		self::__construct( $source );
 	}
 
 	function feed_start_element($p, $element, &$attrs) {
 		$el = $element = strtolower($element);
 		$attrs = array_change_key_case($attrs, CASE_LOWER);
 
 		// check for a namespace, and split if found
 		$ns	= false;
 		if ( strpos( $element, ':' ) ) {
 			list($ns, $el) = explode( ':', $element, 2);
 		}
 		if ( $ns and $ns != 'rdf' ) {
 			$this->current_namespace = $ns;
 		}
 
 		# if feed type isn't set, then this is first element of feed
 		# identify feed from root element
 		#
 		if (!isset($this->feed_type) ) {
 			if ( $el == 'rdf' ) {
 				$this->feed_type = RSS;
 				$this->feed_version = '1.0';
 			}
 			elseif ( $el == 'rss' ) {
 				$this->feed_type = RSS;
 				$this->feed_version = $attrs['version'];
 			}
 			elseif ( $el == 'feed' ) {
 				$this->feed_type = ATOM;
 				$this->feed_version = $attrs['version'];
 				$this->inchannel = true;
 			}
 			return;
 		}
 
 		if ( $el == 'channel' )
 		{
 			$this->inchannel = true;
 		}
 		elseif ($el == 'item' or $el == 'entry' )
 		{
 			$this->initem = true;
 			if ( isset($attrs['rdf:about']) ) {
 				$this->current_item['about'] = $attrs['rdf:about'];
 			}
 		}
 
 		// if we're in the default namespace of an RSS feed,
 		//  record textinput or image fields
 		elseif (
 			$this->feed_type == RSS and
 			$this->current_namespace == '' and
 			$el == 'textinput' )
 		{
 			$this->intextinput = true;
 		}
 
 		elseif (
 			$this->feed_type == RSS and
 			$this->current_namespace == '' and
 			$el == 'image' )
 		{
 			$this->inimage = true;
 		}
 
 		# handle atom content constructs
 		elseif ( $this->feed_type == ATOM and in_array($el, $this->_CONTENT_CONSTRUCTS) )
 		{
 			// avoid clashing w/ RSS mod_content
 			if ($el == 'content' ) {
 				$el = 'atom_content';
 			}
 
 			$this->incontent = $el;
 
 		}
 
 		// if inside an Atom content construct (e.g. content or summary) field treat tags as text
 		elseif ($this->feed_type == ATOM and $this->incontent )
 		{
 			// if tags are inlined, then flatten
 			$attrs_str = join(' ',
 					array_map(array('MagpieRSS', 'map_attrs'),
 					array_keys($attrs),
 					array_values($attrs) ) );
 
 			$this->append_content( "<$element $attrs_str>"  );
 
 			array_unshift( $this->stack, $el );
 		}
 
 		// Atom support many links per containging element.
 		// Magpie treats link elements of type rel='alternate'
 		// as being equivalent to RSS's simple link element.
 		//
 		elseif ($this->feed_type == ATOM and $el == 'link' )
 		{
 			if ( isset($attrs['rel']) and $attrs['rel'] == 'alternate' )
 			{
 				$link_el = 'link';
 			}
 			else {
 				$link_el = 'link_' . $attrs['rel'];
 			}
 
 			$this->append($link_el, $attrs['href']);
 		}
 		// set stack[0] to current element
 		else {
 			array_unshift($this->stack, $el);
 		}
 	}
 
 	function feed_cdata ($p, $text) {
 
 		if ($this->feed_type == ATOM and $this->incontent)
 		{
 			$this->append_content( $text );
 		}
 		else {
 			$current_el = join('_', array_reverse($this->stack));
 			$this->append($current_el, $text);
 		}
 	}
 
 	function feed_end_element ($p, $el) {
 		$el = strtolower($el);
 
 		if ( $el == 'item' or $el == 'entry' )
 		{
 			$this->items[] = $this->current_item;
 			$this->current_item = array();
 			$this->initem = false;
 		}
 		elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'textinput' )
 		{
 			$this->intextinput = false;
 		}
 		elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'image' )
 		{
 			$this->inimage = false;
 		}
 		elseif ($this->feed_type == ATOM and in_array($el, $this->_CONTENT_CONSTRUCTS) )
 		{
 			$this->incontent = false;
 		}
 		elseif ($el == 'channel' or $el == 'feed' )
 		{
 			$this->inchannel = false;
 		}
 		elseif ($this->feed_type == ATOM and $this->incontent  ) {
 			// balance tags properly
 			// note: This may not actually be necessary
 			if ( $this->stack[0] == $el )
 			{
 				$this->append_content("</$el>");
 			}
 			else {
 				$this->append_content("<$el />");
 			}
 
 			array_shift( $this->stack );
 		}
 		else {
 			array_shift( $this->stack );
 		}
 
 		$this->current_namespace = false;
 	}
 
 	function concat (&$str1, $str2="") {
 		if (!isset($str1) ) {
 			$str1="";
 		}
 		$str1 .= $str2;
 	}
 
 	function append_content($text) {
 		if ( $this->initem ) {
 			$this->concat( $this->current_item[ $this->incontent ], $text );
 		}
 		elseif ( $this->inchannel ) {
 			$this->concat( $this->channel[ $this->incontent ], $text );
 		}
 	}
 
 	// smart append - field and namespace aware
 	function append($el, $text) {
 		if (!$el) {
 			return;
 		}
 		if ( $this->current_namespace )
 		{
 			if ( $this->initem ) {
 				$this->concat(
 					$this->current_item[ $this->current_namespace ][ $el ], $text);
 			}
 			elseif ($this->inchannel) {
 				$this->concat(
 					$this->channel[ $this->current_namespace][ $el ], $text );
 			}
 			elseif ($this->intextinput) {
 				$this->concat(
 					$this->textinput[ $this->current_namespace][ $el ], $text );
 			}
 			elseif ($this->inimage) {
 				$this->concat(
 					$this->image[ $this->current_namespace ][ $el ], $text );
 			}
 		}
 		else {
 			if ( $this->initem ) {
 				$this->concat(
 					$this->current_item[ $el ], $text);
 			}
 			elseif ($this->intextinput) {
 				$this->concat(
 					$this->textinput[ $el ], $text );
 			}
 			elseif ($this->inimage) {
 				$this->concat(
 					$this->image[ $el ], $text );
 			}
 			elseif ($this->inchannel) {
 				$this->concat(
 					$this->channel[ $el ], $text );
 			}
 
 		}
 	}
 
 	function normalize () {
 		// if atom populate rss fields
 		if ( $this->is_atom() ) {
 			$this->channel['descripton'] = $this->channel['tagline'];
 			for ( $i = 0; $i < count($this->items); $i++) {
 				$item = $this->items[$i];
 				if ( isset($item['summary']) )
 					$item['description'] = $item['summary'];
 				if ( isset($item['atom_content']))
 					$item['content']['encoded'] = $item['atom_content'];
 
 				$this->items[$i] = $item;
 			}
 		}
 		elseif ( $this->is_rss() ) {
 			$this->channel['tagline'] = $this->channel['description'];
 			for ( $i = 0; $i < count($this->items); $i++) {
 				$item = $this->items[$i];
 				if ( isset($item['description']))
 					$item['summary'] = $item['description'];
 				if ( isset($item['content']['encoded'] ) )
 					$item['atom_content'] = $item['content']['encoded'];
 
 				$this->items[$i] = $item;
 			}
 		}
 	}
 
 	function is_rss () {
 		if ( $this->feed_type == RSS ) {
 			return $this->feed_version;
 		}
 		else {
 			return false;
 		}
 	}
 
 	function is_atom() {
 		if ( $this->feed_type == ATOM ) {
 			return $this->feed_version;
 		}
 		else {
 			return false;
 		}
 	}
 
 	function map_attrs($k, $v) {
 		return "$k=\"$v\"";
 	}
 
 	function error( $errormsg, $lvl = E_USER_WARNING ) {
 		if ( MAGPIE_DEBUG ) {
 			trigger_error( $errormsg, $lvl);
 		} else {
 			error_log( $errormsg, 0);
 		}
 	}
 
 }
 
 if ( !function_exists('fetch_rss') ) :
 /**
  * Build Magpie object based on RSS from URL.
  *
  * @since 1.5.0
  * @package External
  * @subpackage MagpieRSS
  *
  * @param string $url URL to retrieve feed.
  * @return MagpieRSS|false MagpieRSS object on success, false on failure.
  */
 function fetch_rss ($url) {
 	// initialize constants
 	init();
 
 	if ( !isset($url) ) {
 		// error("fetch_rss called without a url");
 		return false;
 	}
 
 	// if cache is disabled
 	if ( !MAGPIE_CACHE_ON ) {
 		// fetch file, and parse it
 		$resp = _fetch_remote_file( $url );
 		if ( is_success( $resp->status ) ) {
 			return _response_to_rss( $resp );
 		}
 		else {
 			// error("Failed to fetch $url and cache is off");
 			return false;
 		}
 	}
 	// else cache is ON
 	else {
 		// Flow
 		// 1. check cache
 		// 2. if there is a hit, make sure it's fresh
 		// 3. if cached obj fails freshness check, fetch remote
 		// 4. if remote fails, return stale object, or error
 
 		$cache = new RSSCache( MAGPIE_CACHE_DIR, MAGPIE_CACHE_AGE );
 
 		if (MAGPIE_DEBUG and $cache->ERROR) {
 			debug($cache->ERROR, E_USER_WARNING);
 		}
 
 		$cache_status 	 = 0;		// response of check_cache
 		$request_headers = array(); // HTTP headers to send with fetch
 		$rss 			 = 0;		// parsed RSS object
 		$errormsg		 = 0;		// errors, if any
 
 		if (!$cache->ERROR) {
 			// return cache HIT, MISS, or STALE
 			$cache_status = $cache->check_cache( $url );
 		}
 
 		// if object cached, and cache is fresh, return cached obj
 		if ( $cache_status == 'HIT' ) {
 			$rss = $cache->get( $url );
 			if ( isset($rss) and $rss ) {
 				$rss->from_cache = 1;
 				if ( MAGPIE_DEBUG > 1) {
 				debug("MagpieRSS: Cache HIT", E_USER_NOTICE);
 			}
 				return $rss;
 			}
 		}
 
 		// else attempt a conditional get
 
 		// set up headers
 		if ( $cache_status == 'STALE' ) {
 			$rss = $cache->get( $url );
 			if ( isset($rss->etag) and $rss->last_modified ) {
 				$request_headers['If-None-Match'] = $rss->etag;
 				$request_headers['If-Last-Modified'] = $rss->last_modified;
 			}
 		}
 
 		$resp = _fetch_remote_file( $url, $request_headers );
 
 		if (isset($resp) and $resp) {
 			if ($resp->status == '304' ) {
 				// we have the most current copy
 				if ( MAGPIE_DEBUG > 1) {
 					debug("Got 304 for $url");
 				}
 				// reset cache on 304 (at minutillo insistent prodding)
 				$cache->set($url, $rss);
 				return $rss;
 			}
 			elseif ( is_success( $resp->status ) ) {
 				$rss = _response_to_rss( $resp );
 				if ( $rss ) {
 					if (MAGPIE_DEBUG > 1) {
 						debug("Fetch successful");
 					}
 					// add object to cache
 					$cache->set( $url, $rss );
 					return $rss;
 				}
 			}
 			else {
 				$errormsg = "Failed to fetch $url. ";
 				if ( $resp->error ) {
 					# compensate for Snoopy's annoying habbit to tacking
 					# on '\n'
 					$http_error = substr($resp->error, 0, -2);
 					$errormsg .= "(HTTP Error: $http_error)";
 				}
 				else {
 					$errormsg .=  "(HTTP Response: " . $resp->response_code .')';
 				}
 			}
 		}
 		else {
 			$errormsg = "Unable to retrieve RSS file for unknown reasons.";
 		}
 
 		// else fetch failed
 
 		// attempt to return cached object
 		if ($rss) {
 			if ( MAGPIE_DEBUG ) {
 				debug("Returning STALE object for $url");
 			}
 			return $rss;
 		}
 
 		// else we totally failed
 		// error( $errormsg );
 
 		return false;
 
 	} // end if ( !MAGPIE_CACHE_ON ) {
 } // end fetch_rss()
 endif;
 
 /**
  * Retrieve URL headers and content using WP HTTP Request API.
  *
  * @since 1.5.0
  * @package External
  * @subpackage MagpieRSS
  *
  * @param string $url URL to retrieve
  * @param array $headers Optional. Headers to send to the URL.
  * @return Snoopy style response
  */
 function _fetch_remote_file($url, $headers = "" ) {
 	$resp = wp_safe_remote_request( $url, array( 'headers' => $headers, 'timeout' => MAGPIE_FETCH_TIME_OUT ) );
 	if ( is_wp_error($resp) ) {
 		$error = array_shift($resp->errors);
 
 		$resp = new stdClass;
 		$resp->status = 500;
 		$resp->response_code = 500;
 		$resp->error = $error[0] . "\n"; //\n = Snoopy compatibility
 		return $resp;
 	}
 
 	// Snoopy returns headers unprocessed.
 	// Also note, WP_HTTP lowercases all keys, Snoopy did not.
 	$return_headers = array();
 	foreach ( wp_remote_retrieve_headers( $resp ) as $key => $value ) {
 		if ( !is_array($value) ) {
 			$return_headers[] = "$key: $value";
 		} else {
 			foreach ( $value as $v )
 				$return_headers[] = "$key: $v";
 		}
 	}
 
 	$response = new stdClass;
 	$response->status = wp_remote_retrieve_response_code( $resp );
 	$response->response_code = wp_remote_retrieve_response_code( $resp );
 	$response->headers = $return_headers;
 	$response->results = wp_remote_retrieve_body( $resp );
 
 	return $response;
 }
 
 /**
  * Retrieve
  *
  * @since 1.5.0
  * @package External
  * @subpackage MagpieRSS
  *
  * @param array $resp
  * @return MagpieRSS|bool
  */
 function _response_to_rss ($resp) {
 	$rss = new MagpieRSS( $resp->results );
 
 	// if RSS parsed successfully
 	if ( $rss && (!isset($rss->ERROR) || !$rss->ERROR) ) {
 
 		// find Etag, and Last-Modified
 		foreach ( (array) $resp->headers as $h) {
 			// 2003-03-02 - Nicola Asuni (www.tecnick.com) - fixed bug "Undefined offset: 1"
 			if (strpos($h, ": ")) {
 				list($field, $val) = explode(": ", $h, 2);
 			}
 			else {
 				$field = $h;
 				$val = "";
 			}
 
 			if ( $field == 'etag' ) {
 				$rss->etag = $val;
 			}
 
 			if ( $field == 'last-modified' ) {
 				$rss->last_modified = $val;
 			}
 		}
 
 		return $rss;
 	} // else construct error message
 	else {
 		$errormsg = "Failed to parse RSS file.";
 
 		if ($rss) {
 			$errormsg .= " (" . $rss->ERROR . ")";
 		}
 		// error($errormsg);
 
 		return false;
 	} // end if ($rss and !$rss->error)
 }
 
 /**
  * Set up constants with default values, unless user overrides.
  *
  * @since 1.5.0
  * @package External
  * @subpackage MagpieRSS
  */
 function init () {
 	if ( defined('MAGPIE_INITALIZED') ) {
 		return;
 	}
 	else {
 		define('MAGPIE_INITALIZED', 1);
 	}
 
 	if ( !defined('MAGPIE_CACHE_ON') ) {
 		define('MAGPIE_CACHE_ON', 1);
 	}
 
 	if ( !defined('MAGPIE_CACHE_DIR') ) {
 		define('MAGPIE_CACHE_DIR', './cache');
 	}
 
 	if ( !defined('MAGPIE_CACHE_AGE') ) {
 		define('MAGPIE_CACHE_AGE', 60*60); // one hour
 	}
 
 	if ( !defined('MAGPIE_CACHE_FRESH_ONLY') ) {
 		define('MAGPIE_CACHE_FRESH_ONLY', 0);
 	}
 
 		if ( !defined('MAGPIE_DEBUG') ) {
 		define('MAGPIE_DEBUG', 0);
 	}
 
 	if ( !defined('MAGPIE_USER_AGENT') ) {
 		$ua = 'WordPress/' . $GLOBALS['wp_version'];
 
 		if ( MAGPIE_CACHE_ON ) {
 			$ua = $ua . ')';
 		}
 		else {
 			$ua = $ua . '; No cache)';
 		}
 
 		define('MAGPIE_USER_AGENT', $ua);
 	}
 
 	if ( !defined('MAGPIE_FETCH_TIME_OUT') ) {
 		define('MAGPIE_FETCH_TIME_OUT', 2);	// 2 second timeout
 	}
 
 	// use gzip encoding to fetch rss files if supported?
 	if ( !defined('MAGPIE_USE_GZIP') ) {
 		define('MAGPIE_USE_GZIP', true);
 	}
 }
 
 function is_info ($sc) {
 	return $sc >= 100 && $sc < 200;
 }
 
 function is_success ($sc) {
 	return $sc >= 200 && $sc < 300;
 }
 
 function is_redirect ($sc) {
 	return $sc >= 300 && $sc < 400;
 }
 
 function is_error ($sc) {
 	return $sc >= 400 && $sc < 600;
 }
 
 function is_client_error ($sc) {
 	return $sc >= 400 && $sc < 500;
 }
 
 function is_server_error ($sc) {
 	return $sc >= 500 && $sc < 600;
 }
 
 class RSSCache {
 	var $BASE_CACHE;	// where the cache files are stored
 	var $MAX_AGE	= 43200;  		// when are files stale, default twelve hours
 	var $ERROR 		= '';			// accumulate error messages
 
 	/**
 	 * PHP5 constructor.
 	 */
 	function __construct( $base = '', $age = '' ) {
 		$this->BASE_CACHE = WP_CONTENT_DIR . '/cache';
 		if ( $base ) {
 			$this->BASE_CACHE = $base;
 		}
 		if ( $age ) {
 			$this->MAX_AGE = $age;
 		}
 
 	}
 
 	/**
 	 * PHP4 constructor.
 	 */
 	public function RSSCache( $base = '', $age = '' ) {
 		self::__construct( $base, $age );
 	}
 
 /*=======================================================================*\
 	Function:	set
 	Purpose:	add an item to the cache, keyed on url
 	Input:		url from which the rss file was fetched
 	Output:		true on success
 \*=======================================================================*/
 	function set ($url, $rss) {
 		$cache_option = 'rss_' . $this->file_name( $url );
 
 		set_transient($cache_option, $rss, $this->MAX_AGE);
 
 		return $cache_option;
 	}
 
 /*=======================================================================*\
 	Function:	get
 	Purpose:	fetch an item from the cache
 	Input:		url from which the rss file was fetched
 	Output:		cached object on HIT, false on MISS
 \*=======================================================================*/
 	function get ($url) {
 		$this->ERROR = "";
 		$cache_option = 'rss_' . $this->file_name( $url );
 
 		if ( ! $rss = get_transient( $cache_option ) ) {
 			$this->debug(
 				"Cache doesn't contain: $url (cache option: $cache_option)"
 			);
 			return 0;
 		}
 
 		return $rss;
 	}
 
 /*=======================================================================*\
 	Function:	check_cache
 	Purpose:	check a url for membership in the cache
 				and whether the object is older then MAX_AGE (ie. STALE)
 	Input:		url from which the rss file was fetched
 	Output:		cached object on HIT, false on MISS
 \*=======================================================================*/
 	function check_cache ( $url ) {
 		$this->ERROR = "";
 		$cache_option = 'rss_' . $this->file_name( $url );
 
 		if ( get_transient($cache_option) ) {
 			// object exists and is current
 				return 'HIT';
 		} else {
 			// object does not exist
 			return 'MISS';
 		}
 	}
 
 /*=======================================================================*\
 	Function:	serialize
 \*=======================================================================*/
 	function serialize ( $rss ) {
 		return serialize( $rss );
 	}
 
 /*=======================================================================*\
 	Function:	unserialize
 \*=======================================================================*/
 	function unserialize ( $data ) {
 		return unserialize( $data );
 	}
 
 /*=======================================================================*\
 	Function:	file_name
 	Purpose:	map url to location in cache
 	Input:		url from which the rss file was fetched
 	Output:		a file name
 \*=======================================================================*/
 	function file_name ($url) {
 		return md5( $url );
 	}
 
 /*=======================================================================*\
 	Function:	error
 	Purpose:	register error
 \*=======================================================================*/
 	function error ($errormsg, $lvl=E_USER_WARNING) {
 		$this->ERROR = $errormsg;
 		if ( MAGPIE_DEBUG ) {
 			trigger_error( $errormsg, $lvl);
 		}
 		else {
 			error_log( $errormsg, 0);
 		}
 	}
 			function debug ($debugmsg, $lvl=E_USER_NOTICE) {
 		if ( MAGPIE_DEBUG ) {
 			$this->error("MagpieRSS [debug] $debugmsg", $lvl);
 		}
 	}
 }
 
 if ( !function_exists('parse_w3cdtf') ) :
 function parse_w3cdtf ( $date_str ) {
 
 	# regex to match wc3dtf
 	$pat = "/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/";
 
 	if ( preg_match( $pat, $date_str, $match ) ) {
 		list( $year, $month, $day, $hours, $minutes, $seconds) =
 			array( $match[1], $match[2], $match[3], $match[4], $match[5], $match[7]);
 
 		# calc epoch for current date assuming GMT
 		$epoch = gmmktime( $hours, $minutes, $seconds, $month, $day, $year);
 
 		$offset = 0;
 		if ( $match[11] == 'Z' ) {
 			# zulu time, aka GMT
 		}
 		else {
 			list( $tz_mod, $tz_hour, $tz_min ) =
 				array( $match[8], $match[9], $match[10]);
 
 			# zero out the variables
 			if ( ! $tz_hour ) { $tz_hour = 0; }
 			if ( ! $tz_min ) { $tz_min = 0; }
 
 			$offset_secs = (($tz_hour*60)+$tz_min)*60;
 
 			# is timezone ahead of GMT?  then subtract offset
 			#
 			if ( $tz_mod == '+' ) {
 				$offset_secs = $offset_secs * -1;
 			}
 
 			$offset = $offset_secs;
 		}
 		$epoch = $epoch + $offset;
 		return $epoch;
 	}
 	else {
 		return -1;
 	}
 }
 endif;
 
 if ( !function_exists('wp_rss') ) :
 /**
  * Display all RSS items in a HTML ordered list.
  *
  * @since 1.5.0
  * @package External
  * @subpackage MagpieRSS
  *
  * @param string $url URL of feed to display. Will not auto sense feed URL.
  * @param int $num_items Optional. Number of items to display, default is all.
  */
 function wp_rss( $url, $num_items = -1 ) {
 	if ( $rss = fetch_rss( $url ) ) {
 		echo '<ul>';
 
 		if ( $num_items !== -1 ) {
 			$rss->items = array_slice( $rss->items, 0, $num_items );
 		}
 
 		foreach ( (array) $rss->items as $item ) {
 			printf(
 				'<li><a href="%1$s" title="%2$s">%3$s</a></li>',
 				esc_url( $item['link'] ),
 				esc_attr( strip_tags( $item['description'] ) ),
 				esc_html( $item['title'] )
 			);
 		}
 
 		echo '</ul>';
 	} else {
 		_e( 'An error has occurred, which probably means the feed is down. Try again later.' );
 	}
 }
 endif;
 
 if ( !function_exists('get_rss') ) :
 /**
  * Display RSS items in HTML list items.
  *
  * You have to specify which HTML list you want, either ordered or unordered
  * before using the function. You also have to specify how many items you wish
  * to display. You can't display all of them like you can with wp_rss()
  * function.
  *
  * @since 1.5.0
  * @package External
  * @subpackage MagpieRSS
  *
  * @param string $url URL of feed to display. Will not auto sense feed URL.
  * @param int $num_items Optional. Number of items to display, default is all.
  * @return bool False on failure.
  */
 function get_rss ($url, $num_items = 5) { // Like get posts, but for RSS
 	$rss = fetch_rss($url);
 	if ( $rss ) {
 		$rss->items = array_slice($rss->items, 0, $num_items);
 		foreach ( (array) $rss->items as $item ) {
 			echo "<li>\n";
 			echo "<a href='$item[link]' title='$item[description]'>";
 			echo esc_html($item['title']);
 			echo "</a><br />\n";
 			echo "</li>\n";
 		}
 	} else {
 		return false;
 	}
 }
 endif;