File indexing completed on 2024-05-12 06:02:31

 <?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
  * @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_Abstract
  */
 // require_once 'Zend/Feed/Abstract.php';
 
 /**
  * @see Zend_Feed_Entry_Rss
  */
 // require_once 'Zend/Feed/Entry/Rss.php';
 
 
 /**
  * RSS channel class
  *
  * The Zend_Feed_Rss class is a concrete subclass of
  * Zend_Feed_Abstract meant for representing RSS channels. It does not
  * add any methods to its parent, just provides a classname to check
  * against with the instanceof operator, and expects to be handling
  * RSS-formatted data instead of Atom.
  *
  * @category   Zend
  * @package    Zend_Feed
  * @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_Rss extends Zend_Feed_Abstract
 {
     /**
      * The classname for individual channel elements.
      *
      * @var string
      */
     protected $_entryClassName = 'Zend_Feed_Entry_Rss';
 
     /**
      * The element name for individual channel elements (RSS <item>s).
      *
      * @var string
      */
     protected $_entryElementName = 'item';
 
     /**
      * The default namespace for RSS channels.
      *
      * @var string
      */
     protected $_defaultNamespace = 'rss';
 
     /**
      * Override Zend_Feed_Abstract to set up the $_element and $_entries aliases.
      *
      * @return void
      * @throws Zend_Feed_Exception
      */
     public function __wakeup()
     {
         parent::__wakeup();
 
         // Find the base channel element and create an alias to it.
         $rdfTags = $this->_element->getElementsByTagNameNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'RDF');
         if ($rdfTags->length != 0) {
             $this->_element = $rdfTags->item(0);
         } else  {
             $this->_element = $this->_element->getElementsByTagName('channel')->item(0);
         }
         if (!$this->_element) {
             /**
              * @see Zend_Feed_Exception
              */
             // require_once 'Zend/Feed/Exception.php';
             throw new Zend_Feed_Exception('No root <channel> element found, cannot parse channel.');
         }
 
         // Find the entries and save a pointer to them for speed and
         // simplicity.
         $this->_buildEntryCache();
     }
 
 
     /**
      * Make accessing some individual elements of the channel easier.
      *
      * Special accessors 'item' and 'items' are provided so that if
      * you wish to iterate over an RSS channel's items, you can do so
      * using foreach ($channel->items as $item) or foreach
      * ($channel->item as $item).
      *
      * @param  string $var The property to access.
      * @return mixed
      */
     public function __get($var)
     {
         switch ($var) {
             case 'item':
                 // fall through to the next case
             case 'items':
                 return $this;
 
             default:
                 return parent::__get($var);
         }
     }
 
     /**
      * Generate the header of the feed when working in write mode
      *
      * @param  array $array the data to use
      * @return DOMElement root node
      */
     protected function _mapFeedHeaders($array)
     {
         $channel = $this->_element->createElement('channel');
 
         $title = $this->_element->createElement('title');
         $title->appendChild($this->_element->createCDATASection($array->title));
         $channel->appendChild($title);
 
         $link = $this->_element->createElement('link', $array->link);
         $channel->appendChild($link);
 
         $desc = isset($array->description) ? $array->description : '';
         $description = $this->_element->createElement('description');
         $description->appendChild($this->_element->createCDATASection($desc));
         $channel->appendChild($description);
 
         $pubdate = isset($array->lastUpdate) ? $array->lastUpdate : time();
         $pubdate = $this->_element->createElement('pubDate', date(DATE_RSS, $pubdate));
         $channel->appendChild($pubdate);
 
         if (isset($array->published)) {
             $lastBuildDate = $this->_element->createElement('lastBuildDate', date(DATE_RSS, $array->published));
             $channel->appendChild($lastBuildDate);
         }
 
         $editor = '';
         if (!empty($array->email)) {
             $editor .= $array->email;
         }
         if (!empty($array->author)) {
             $editor .= ' (' . $array->author . ')';
         }
         if (!empty($editor)) {
             $author = $this->_element->createElement('managingEditor', ltrim($editor));
             $channel->appendChild($author);
         }
         if (isset($array->webmaster)) {
             $channel->appendChild($this->_element->createElement('webMaster', $array->webmaster));
         }
 
         if (!empty($array->copyright)) {
             $copyright = $this->_element->createElement('copyright', $array->copyright);
             $channel->appendChild($copyright);
         }
 
         if (isset($array->category)) {
             $category = $this->_element->createElement('category', $array->category);
             $channel->appendChild($category);
         }
 
         if (!empty($array->image)) {
             $image = $this->_element->createElement('image');
             $url = $this->_element->createElement('url', $array->image);
             $image->appendChild($url);
             $imagetitle = $this->_element->createElement('title');
             $imagetitle->appendChild($this->_element->createCDATASection($array->title));
             $image->appendChild($imagetitle);
             $imagelink = $this->_element->createElement('link', $array->link);
             $image->appendChild($imagelink);
 
             $channel->appendChild($image);
         }
 
         $generator = !empty($array->generator) ? $array->generator : 'Zend_Feed';
         $generator = $this->_element->createElement('generator', $generator);
         $channel->appendChild($generator);
 
         if (!empty($array->language)) {
             $language = $this->_element->createElement('language', $array->language);
             $channel->appendChild($language);
         }
 
         $doc = $this->_element->createElement('docs', 'http://blogs.law.harvard.edu/tech/rss');
         $channel->appendChild($doc);
 
         if (isset($array->cloud)) {
             $cloud = $this->_element->createElement('cloud');
             $cloud->setAttribute('domain', $array->cloud['uri']->getHost());
             $cloud->setAttribute('port', $array->cloud['uri']->getPort());
             $cloud->setAttribute('path', $array->cloud['uri']->getPath());
             $cloud->setAttribute('registerProcedure', $array->cloud['procedure']);
             $cloud->setAttribute('protocol', $array->cloud['protocol']);
             $channel->appendChild($cloud);
         }
 
         if (isset($array->ttl)) {
             $ttl = $this->_element->createElement('ttl', $array->ttl);
             $channel->appendChild($ttl);
         }
 
         if (isset($array->rating)) {
             $rating = $this->_element->createElement('rating', $array->rating);
             $channel->appendChild($rating);
         }
 
         if (isset($array->textInput)) {
             $textinput = $this->_element->createElement('textInput');
             $textinput->appendChild($this->_element->createElement('title', $array->textInput['title']));
             $textinput->appendChild($this->_element->createElement('description', $array->textInput['description']));
             $textinput->appendChild($this->_element->createElement('name', $array->textInput['name']));
             $textinput->appendChild($this->_element->createElement('link', $array->textInput['link']));
             $channel->appendChild($textinput);
         }
 
         if (isset($array->skipHours)) {
             $skipHours = $this->_element->createElement('skipHours');
             foreach ($array->skipHours as $hour) {
                 $skipHours->appendChild($this->_element->createElement('hour', $hour));
             }
             $channel->appendChild($skipHours);
         }
 
         if (isset($array->skipDays)) {
             $skipDays = $this->_element->createElement('skipDays');
             foreach ($array->skipDays as $day) {
                 $skipDays->appendChild($this->_element->createElement('day', $day));
             }
             $channel->appendChild($skipDays);
         }
 
         if (isset($array->itunes)) {
             $this->_buildiTunes($channel, $array);
         }
 
         return $channel;
     }
 
     /**
      * Adds the iTunes extensions to a root node
      *
      * @param  DOMElement $root
      * @param  array $array
      * @return void
      */
     private function _buildiTunes(DOMElement $root, $array)
     {
         /* author node */
         $author = '';
         if (isset($array->itunes->author)) {
             $author = $array->itunes->author;
         } elseif (isset($array->author)) {
             $author = $array->author;
         }
         if (!empty($author)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:author', $author);
             $root->appendChild($node);
         }
 
         /* owner node */
         $author = '';
         $email = '';
         if (isset($array->itunes->owner)) {
             if (isset($array->itunes->owner['name'])) {
                 $author = $array->itunes->owner['name'];
             }
             if (isset($array->itunes->owner['email'])) {
                 $email = $array->itunes->owner['email'];
             }
         }
         if (empty($author) && isset($array->author)) {
             $author = $array->author;
         }
         if (empty($email) && isset($array->email)) {
             $email = $array->email;
         }
         if (!empty($author) || !empty($email)) {
             $owner = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:owner');
             if (!empty($author)) {
                 $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:name', $author);
                 $owner->appendChild($node);
             }
             if (!empty($email)) {
                 $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:email', $email);
                 $owner->appendChild($node);
             }
             $root->appendChild($owner);
         }
         $image = '';
         if (isset($array->itunes->image)) {
             $image = $array->itunes->image;
         } elseif (isset($array->image)) {
             $image = $array->image;
         }
         if (!empty($image)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:image');
             $node->setAttribute('href', $image);
             $root->appendChild($node);
         }
         $subtitle = '';
         if (isset($array->itunes->subtitle)) {
             $subtitle = $array->itunes->subtitle;
         } elseif (isset($array->description)) {
             $subtitle = $array->description;
         }
         if (!empty($subtitle)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:subtitle', $subtitle);
             $root->appendChild($node);
         }
         $summary = '';
         if (isset($array->itunes->summary)) {
             $summary = $array->itunes->summary;
         } elseif (isset($array->description)) {
             $summary = $array->description;
         }
         if (!empty($summary)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:summary', $summary);
             $root->appendChild($node);
         }
         if (isset($array->itunes->block)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:block', $array->itunes->block);
             $root->appendChild($node);
         }
         if (isset($array->itunes->explicit)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:explicit', $array->itunes->explicit);
             $root->appendChild($node);
         }
         if (isset($array->itunes->keywords)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:keywords', $array->itunes->keywords);
             $root->appendChild($node);
         }
         if (isset($array->itunes->new_feed_url)) {
             $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:new-feed-url', $array->itunes->new_feed_url);
             $root->appendChild($node);
         }
         if (isset($array->itunes->category)) {
             foreach ($array->itunes->category as $i => $category) {
                 $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:category');
                 $node->setAttribute('text', $category['main']);
                 $root->appendChild($node);
                 $add_end_category = false;
                 if (!empty($category['sub'])) {
                     $add_end_category = true;
                     $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:category');
                     $node->setAttribute('text', $category['sub']);
                     $root->appendChild($node);
                 }
                 if ($i > 0 || $add_end_category) {
                     $node = $this->_element->createElementNS('http://www.itunes.com/DTDs/Podcast-1.0.dtd', 'itunes:category');
                     $root->appendChild($node);
                 }
             }
         }
     }
 
     /**
      * Generate the entries of the feed when working in write mode
      *
      * The following nodes are constructed for each feed entry
      * <item>
      *    <title>entry title</title>
      *    <link>url to feed entry</link>
      *    <guid>url to feed entry</guid>
      *    <description>short text</description>
      *    <content:encoded>long version, can contain html</content:encoded>
      * </item>
      *
      * @param  DOMElement $root the root node to use
      * @param  array $array the data to use
      * @return void
      */
     protected function _mapFeedEntries(DOMElement $root, $array)
     {
         Zend_Feed::registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/');
 
         foreach ($array as $dataentry) {
             $item = $this->_element->createElement('item');
 
             $title = $this->_element->createElement('title');
             $title->appendChild($this->_element->createCDATASection($dataentry->title));
             $item->appendChild($title);
 
             if (isset($dataentry->author)) {
                 $author = $this->_element->createElement('author', $dataentry->author);
                 $item->appendChild($author);
             }
 
             $link = $this->_element->createElement('link', $dataentry->link);
             $item->appendChild($link);
 
             if (isset($dataentry->guid)) {
                 $guid = $this->_element->createElement('guid', $dataentry->guid);
                 if (!Zend_Uri::check($dataentry->guid)) {
                     $guid->setAttribute('isPermaLink', 'false');
                 }
                 $item->appendChild($guid);
             }
 
             $description = $this->_element->createElement('description');
             $description->appendChild($this->_element->createCDATASection($dataentry->description));
             $item->appendChild($description);
 
             if (isset($dataentry->content)) {
                 $content = $this->_element->createElement('content:encoded');
                 $content->appendChild($this->_element->createCDATASection($dataentry->content));
                 $item->appendChild($content);
             }
 
             $pubdate = isset($dataentry->lastUpdate) ? $dataentry->lastUpdate : time();
             $pubdate = $this->_element->createElement('pubDate', date(DATE_RSS, $pubdate));
             $item->appendChild($pubdate);
 
             if (isset($dataentry->category)) {
                 foreach ($dataentry->category as $category) {
                     $node = $this->_element->createElement('category');
                     $node->appendChild($this->_element->createCDATASection($category['term']));
                     if (isset($category['scheme'])) {
                         $node->setAttribute('domain', $category['scheme']);
                     }
                     $item->appendChild($node);
                 }
             }
 
             if (isset($dataentry->source)) {
                 $source = $this->_element->createElement('source', $dataentry->source['title']);
                 $source->setAttribute('url', $dataentry->source['url']);
                 $item->appendChild($source);
             }
 
             if (isset($dataentry->comments)) {
                 $comments = $this->_element->createElement('comments', $dataentry->comments);
                 $item->appendChild($comments);
             }
             if (isset($dataentry->commentRss)) {
                 $comments = $this->_element->createElementNS('http://wellformedweb.org/CommentAPI/',
                                                              'wfw:commentRss',
                                                              $dataentry->commentRss);
                 $item->appendChild($comments);
             }
 
 
             if (isset($dataentry->enclosure)) {
                 foreach ($dataentry->enclosure as $enclosure) {
                     $node = $this->_element->createElement('enclosure');
                     $node->setAttribute('url', $enclosure['url']);
                     if (isset($enclosure['type'])) {
                         $node->setAttribute('type', $enclosure['type']);
                     }
                     if (isset($enclosure['length'])) {
                         $node->setAttribute('length', $enclosure['length']);
                     }
                     $item->appendChild($node);
                 }
             }
 
             $root->appendChild($item);
         }
     }
 
     /**
      * Override Zend_Feed_Element to include <rss> root node
      *
      * @return string
      */
     public function saveXml()
     {
         // Return a complete document including XML prologue.
         $doc = new DOMDocument($this->_element->ownerDocument->version,
                                $this->_element->ownerDocument->actualEncoding);
         $root = $doc->createElement('rss');
 
         // Use rss version 2.0
         $root->setAttribute('version', '2.0');
 
         // Content namespace
         $root->setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:content', 'http://purl.org/rss/1.0/modules/content/');
         $root->appendChild($doc->importNode($this->_element, true));
 
         // Append root node
         $doc->appendChild($root);
 
         // Format output
         $doc->formatOutput = true;
 
         return $doc->saveXML();
     }
 
     /**
      * Send feed to a http client with the correct header
      *
      * @return void
      * @throws Zend_Feed_Exception if headers have already been sent
      */
     public function send()
     {
         if (headers_sent()) {
             /**
              * @see Zend_Feed_Exception
              */
             // require_once 'Zend/Feed/Exception.php';
             throw new Zend_Feed_Exception('Cannot send RSS because headers have already been sent.');
         }
 
         header('Content-Type: application/rss+xml; charset=' . $this->_element->ownerDocument->actualEncoding);
 
         echo $this->saveXml();
     }
 
 }