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feed.php
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feed.php
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<?php
/**
* @version $Id$
* @package Joomla.Framework
* @subpackage Document
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// No direct access
defined('JPATH_BASE') or die;
/**
* DocumentFeed class, provides an easy interface to parse and display any feed document
*
* @package Joomla.Framework
* @subpackage Document
* @since 1.5
*/
jimport('joomla.document.document');
class JDocumentFeed extends JDocument
{
/**
* Syndication URL feed element
*
* optional
*
* @var string
* @access public
*/
var $syndicationURL = "";
/**
* Image feed element
*
* optional
*
* @var object
* @access public
*/
var $image = null;
/**
* Copyright feed elememnt
*
* optional
*
* @var string
* @access public
*/
var $copyright = "";
/**
* Published date feed element
*
* optional
*
* @var string
* @access public
*/
var $pubDate = "";
/**
* Lastbuild date feed element
*
* optional
*
* @var string
* @access public
*/
var $lastBuildDate = "";
/**
* Editor feed element
*
* optional
*
* @var string
* @access public
*/
var $editor = "";
/**
* Docs feed element
*
* @var string
* @access public
*/
var $docs = "";
/**
* Editor email feed element
*
* optional
*
* @var string
* @access public
*/
var $editorEmail = "";
/**
* Webmaster email feed element
*
* optional
*
* @var string
* @access public
*/
var $webmaster = "";
/**
* Category feed element
*
* optional
*
* @var string
* @access public
*/
var $category = "";
/**
* TTL feed attribute
*
* optional
*
* @var string
* @access public
*/
var $ttl = "";
/**
* Rating feed element
*
* optional
*
* @var string
* @access public
*/
var $rating = "";
/**
* Skiphours feed element
*
* optional
*
* @var string
* @access public
*/
var $skipHours = "";
/**
* Skipdays feed element
*
* optional
*
* @var string
* @access public
*/
var $skipDays = "";
/**
* The feed items collection
*
* @var array
* @access public
*/
var $items = array();
/**
* Class constructor
*
* @access protected
* @param array $options Associative array of options
*/
function __construct($options = array())
{
parent::__construct($options);
//set document type
$this->_type = 'feed';
}
/**
* Render the document
*
* @access public
* @param boolean $cache If true, cache the output
* @param array $params Associative array of attributes
* @return The rendered data
*/
function render($cache = false, $params = array())
{
global $option;
// Get the feed type
$type = JRequest::getCmd('type', 'rss');
/*
* Cache TODO In later release
*/
$cache = 0;
$cache_time = 3600;
$cache_path = JPATH_CACHE;
// set filename for rss feeds
$file = strtolower(str_replace('.', '', $type));
$file = $cache_path.DS.$file.'_'.$option.'.xml';
// Instantiate feed renderer and set the mime encoding
$renderer = $this->loadRenderer(($type) ? $type : 'rss');
if (!is_a($renderer, 'JDocumentRenderer')) {
JError::raiseError(404, JText::_('JGLOBAL_RESOURCE_NOT_FOUND'));
}
$this->setMimeEncoding($renderer->getContentType());
//output
// Generate prolog
$data = "<?xml version=\"1.0\" encoding=\"".$this->_charset."\"?>\n";
$data .= "<!-- generator=\"".$this->getGenerator()."\" -->\n";
// Generate stylesheet links
foreach ($this->_styleSheets as $src => $attr) {
$data .= "<?xml-stylesheet href=\"$src\" type=\"".$attr['mime']."\"?>\n";
}
// Render the feed
$data .= $renderer->render();
parent::render();
return $data;
}
/**
* Adds an JFeedItem to the feed.
*
* @param object JFeedItem $item The feeditem to add to the feed.
* @access public
*/
function addItem(&$item)
{
$item->source = $this->link;
$this->items[] = $item;
}
}
/**
* JFeedItem is an internal class that stores feed item information
*
* @package Joomla.Framework
* @subpackage Document
* @since 1.5
*/
class JFeedItem extends JObject
{
/**
* Title item element
*
* required
*
* @var string
* @access public
*/
var $title;
/**
* Link item element
*
* required
*
* @var string
* @access public
*/
var $link;
/**
* Description item element
*
* required
*
* @var string
* @access public
*/
var $description;
/**
* Author item element
*
* optional
*
* @var string
* @access public
*/
var $author;
/**
* Author email element
*
* optional
*
* @var string
* @access public
*/
var $authorEmail;
/**
* Category element
*
* optional
*
* @var array or string
* @access public
*/
var $category;
/**
* Comments element
*
* optional
*
* @var string
* @access public
*/
var $comments;
/**
* Enclosure element
*
* @var object
* @access public
*/
var $enclosure = null;
/**
* Guid element
*
* optional
*
* @var string
* @access public
*/
var $guid;
/**
* Published date
*
* optional
*
* May be in one of the following formats:
*
* RFC 822:
* "Mon, 20 Jan 03 18:05:41 +0400"
* "20 Jan 03 18:05:41 +0000"
*
* ISO 8601:
* "2003-01-20T18:05:41+04:00"
*
* Unix:
* 1043082341
*
* @var string
* @access public
*/
var $date;
/**
* Source element
*
* optional
*
* @var string
* @access public
*/
var $source;
/**
* Set the JFeedEnclosure for this item
*
* @access public
* @param object $enclosure The JFeedItem to add to the feed.
*/
function setEnclosure($enclosure) {
$this->enclosure = $enclosure;
}
}
/**
* JFeedEnclosure is an internal class that stores feed enclosure information
*
* @package Joomla.Framework
* @subpackage Document
* @since 1.5
*/
class JFeedEnclosure extends JObject
{
/**
* URL enclosure element
*
* required
*
* @var string
* @access public
*/
var $url = "";
/**
* Lenght enclosure element
*
* required
*
* @var string
* @access public
*/
var $length = "";
/**
* Type enclosure element
*
* required
*
* @var string
* @access public
*/
var $type = "";
}
/**
* JFeedImage is an internal class that stores feed image information
*
* @package Joomla.Framework
* @subpackage Document
* @since 1.5
*/
class JFeedImage extends JObject
{
/**
* Title image attribute
*
* required
*
* @var string
* @access public
*/
var $title = "";
/**
* URL image attribute
*
* required
*
* @var string
* @access public
*/
var $url = "";
/**
* Link image attribute
*
* required
*
* @var string
* @access public
*/
var $link = "";
/**
* witdh image attribute
*
* optional
*
* @var string
* @access public
*/
var $width;
/**
* Title feed attribute
*
* optional
*
* @var string
* @access public
*/
var $height;
/**
* Title feed attribute
*
* optional
*
* @var string
* @access public
*/
var $description;
}