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. $rdf = $this->_element->getElementsByTagNameNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'RDF')->item(0); if ($rdf) { $this->_element = $rdf; $channel = $this->_element->getElementsByTagName('channel')->item(0); if ($channel->getElementsByTagName('title')->item(0)) $this->_element->appendChild($channel->getElementsByTagName('title')->item(0)); if ($channel->getElementsByTagName('link')->item(0)) $this->_element->appendChild($channel->getElementsByTagName('link')->item(0)); if ($channel->getElementsByTagName('description')->item(0)) $this->_element->appendChild($channel->getElementsByTagName('description')->item(0)); } else { $this->_element = $this->_element->getElementsByTagName('channel')->item(0); } if (! $this->_element) { /** * @see Zend_Feed_Exception */ require_once 'external/Zend/Feed/Exception.php'; throw new Zend_Feed_Exception('No root 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', gmdate('r', $pubdate)); $channel->appendChild($pubdate); if (isset($array->published)) { $lastBuildDate = $this->_element->createElement('lastBuildDate', gmdate('r', $array->published)); } $editor = ''; if (! empty($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 (! empty($array->image)) { $image = $this->_element->createElement('image'); $url = $this->_element->createElement('url', $array->image); $image->appendChild($url); $imagetitle = $this->_element->createElement('title', $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->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 * * * url to feed entry * url to feed entry * short text * long version, can contain html * * * @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); $link = $this->_element->createElement('link', $dataentry->link); $item->appendChild($link); if (isset($dataentry->guid)) { $guid = $this->_element->createElement('guid', $dataentry->guid); $item->appendChild($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', gmdate('r', $pubdate)); $item->appendChild($pubdate); if (isset($dataentry->category)) { foreach ($dataentry->category as $category) { $node = $this->_element->createElement('category', $category['term']); if (isset($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 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 'external/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(); } }