File indexing completed on 2025-01-19 05:21:06

 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Feed_Reader
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Feed_Reader
  */
 // require_once 'Zend/Feed/Reader.php';
 
 /**
  * @see Zend_Uri
  */
 // require_once 'Zend/Uri.php';
 
 /**
  * @category   Zend
  * @package    Zend_Feed_Reader
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Feed_Reader_FeedSet extends ArrayObject
 {
 
     public $rss = null;
 
     public $rdf = null;
 
     public $atom = null;
 
     /**
      * Import a DOMNodeList from any document containing a set of links
      * for alternate versions of a document, which will normally refer to
      * RSS/RDF/Atom feeds for the current document.
      *
      * All such links are stored internally, however the first instance of
      * each RSS, RDF or Atom type has its URI stored as a public property
      * as a shortcut where the use case is simply to get a quick feed ref.
      *
      * Note that feeds are not loaded at this point, but will be lazy
      * loaded automatically when each links 'feed' array key is accessed.
      *
      * @param DOMNodeList $links
      * @param string $uri
      * @return void
      */
     public function addLinks(DOMNodeList $links, $uri)
     {
         foreach ($links as $link) {
             if (strtolower($link->getAttribute('rel')) !== 'alternate'
                 || !$link->getAttribute('type') || !$link->getAttribute('href')) {
                 continue;
             }
             if (!isset($this->rss) && $link->getAttribute('type') == 'application/rss+xml') {
                 $this->rss = $this->_absolutiseUri(trim($link->getAttribute('href')), $uri);
             } elseif(!isset($this->atom) && $link->getAttribute('type') == 'application/atom+xml') {
                 $this->atom = $this->_absolutiseUri(trim($link->getAttribute('href')), $uri);
             } elseif(!isset($this->rdf) && $link->getAttribute('type') == 'application/rdf+xml') {
                 $this->rdf = $this->_absolutiseUri(trim($link->getAttribute('href')), $uri);
             }
             $this[] = new self(array(
                 'rel' => 'alternate',
                 'type' => $link->getAttribute('type'),
                 'href' => $this->_absolutiseUri(trim($link->getAttribute('href')), $uri),
             ));
         }
     }
 
     /**
      *  Attempt to turn a relative URI into an absolute URI
      */
     protected function _absolutiseUri($link, $uri = null)
     {
         if (!Zend_Uri::check($link)) {
             if ($uri !== null) {
                 $uri = Zend_Uri::factory($uri);
 
                 if ($link[0] !== '/') {
                     $link = $uri->getPath() . '/' . $link;
                 }
 
                 $link = $uri->getScheme() . '://' . $uri->getHost() . '/' . $this->_canonicalizePath($link);
                 if (!Zend_Uri::check($link)) {
                     $link = null;
                 }
             }
         }
         return $link;
     }
 
     /**
      *  Canonicalize relative path
      */
     protected function _canonicalizePath($path)
     {
         $parts = array_filter(explode('/', $path));
         $absolutes = array();
         foreach ($parts as $part) {
             if ('.' == $part) {
                 continue;
             }
             if ('..' == $part) {
                 array_pop($absolutes);
             } else {
                 $absolutes[] = $part;
             }
         }
         return implode('/', $absolutes);
     }
 
     /**
      * Supports lazy loading of feeds using Zend_Feed_Reader::import() but
      * delegates any other operations to the parent class.
      *
      * @param string $offset
      * @return mixed
      * @uses Zend_Feed_Reader
      */
     public function offsetGet($offset)
     {
         if ($offset == 'feed' && !$this->offsetExists('feed')) {
             if (!$this->offsetExists('href')) {
                 return null;
             }
             $feed = Zend_Feed_Reader::import($this->offsetGet('href'));
             $this->offsetSet('feed', $feed);
             return $feed;
         }
         return parent::offsetGet($offset);
     }
 
 }