* elements). * * @var string */ protected $_entryElementName = 'entry'; /** * The default namespace for Atom feeds. * * @var string */ protected $_defaultNamespace = 'atom'; /** * 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 feed element and create an alias to it. $element = $this->_element->getElementsByTagName('feed')->item(0); if (! $element) { // Try to find a single instead. $element = $this->_element->getElementsByTagName($this->_entryElementName)->item(0); if (! $element) { /** * @see Zend_Feed_Exception */ require_once 'external/Zend/Feed/Exception.php'; throw new Zend_Feed_Exception('No root or <' . $this->_entryElementName . '> element found, cannot parse feed.'); } $doc = new DOMDocument($this->_element->version, $this->_element->actualEncoding); $feed = $doc->appendChild($doc->createElement('feed')); $feed->appendChild($doc->importNode($element, true)); $element = $feed; } $this->_element = $element; // Find the entries and save a pointer to them for speed and // simplicity. $this->_buildEntryCache(); } /** * Easy access to tags keyed by "rel" attributes. * * If $elt->link() is called with no arguments, we will attempt to * return the value of the tag(s) like all other * method-syntax attribute access. If an argument is passed to * link(), however, then we will return the "href" value of the * first tag that has a "rel" attribute matching $rel: * * $elt->link(): returns the value of the link tag. * $elt->link('self'): returns the href from the first in the entry. * * @param string $rel The "rel" attribute to look for. * @return mixed */ public function link($rel = null) { if ($rel === null) { return parent::__call('link', null); } // index link tags by their "rel" attribute. $links = parent::__get('link'); if (! is_array($links)) { if ($links instanceof Zend_Feed_Element) { $links = array($links); } else { return $links; } } foreach ($links as $link) { if (empty($link['rel'])) { continue; } if ($rel == $link['rel']) { return $link['href']; } } return null; } /** * Make accessing some individual elements of the feed easier. * * Special accessors 'entry' and 'entries' are provided so that if * you wish to iterate over an Atom feed's entries, you can do so * using foreach ($feed->entries as $entry) or foreach * ($feed->entry as $entry). * * @param string $var The property to access. * @return mixed */ public function __get($var) { switch ($var) { case 'entry': // fall through to the next case case 'entries': 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) { $feed = $this->_element->createElement('feed'); $feed->setAttribute('xmlns', 'http://www.w3.org/2005/Atom'); $id = $this->_element->createElement('id', $array->link); $feed->appendChild($id); $title = $this->_element->createElement('title'); $title->appendChild($this->_element->createCDATASection($array->title)); $feed->appendChild($title); if (isset($array->author)) { $author = $this->_element->createElement('author'); $name = $this->_element->createElement('name', $array->author); $author->appendChild($name); if (isset($array->email)) { $email = $this->_element->createElement('email', $array->email); $author->appendChild($email); } $feed->appendChild($author); } $updated = isset($array->lastUpdate) ? $array->lastUpdate : time(); $updated = $this->_element->createElement('updated', date(DATE_ATOM, $updated)); $feed->appendChild($updated); if (isset($array->published)) { $published = $this->_element->createElement('published', date(DATE_ATOM, $array->published)); $feed->appendChild($published); } $link = $this->_element->createElement('link'); $link->setAttribute('rel', 'self'); $link->setAttribute('href', $array->link); if (isset($array->language)) { $link->setAttribute('hreflang', $array->language); } $feed->appendChild($link); if (isset($array->description)) { $subtitle = $this->_element->createElement('subtitle'); $subtitle->appendChild($this->_element->createCDATASection($array->description)); $feed->appendChild($subtitle); } if (isset($array->copyright)) { $copyright = $this->_element->createElement('rights', $array->copyright); $feed->appendChild($copyright); } if (isset($array->image)) { $image = $this->_element->createElement('logo', $array->image); $feed->appendChild($image); } $generator = ! empty($array->generator) ? $array->generator : 'Zend_Feed'; $generator = $this->_element->createElement('generator', $generator); $feed->appendChild($generator); return $feed; } /** * Generate the entries of the feed when working in write mode * * The following nodes are constructed for each feed entry * * url to feed entry * * last update * *

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* long version, can contain html * * * @param array $array the data to use * @param DOMElement $root the root node to use * @return void */ protected function _mapFeedEntries(DOMElement $root, $array) { foreach ($array as $dataentry) { $entry = $this->_element->createElement('entry'); $id = $this->_element->createElement('id', isset($dataentry->guid) ? $dataentry->guid : $dataentry->link); $entry->appendChild($id); $title = $this->_element->createElement('title'); $title->appendChild($this->_element->createCDATASection($dataentry->title)); $entry->appendChild($title); $updated = isset($dataentry->lastUpdate) ? $dataentry->lastUpdate : time(); $updated = $this->_element->createElement('updated', date(DATE_ATOM, $updated)); $entry->appendChild($updated); $link = $this->_element->createElement('link'); $link->setAttribute('rel', 'alternate'); $link->setAttribute('href', $dataentry->link); $entry->appendChild($link); $summary = $this->_element->createElement('summary'); $summary->appendChild($this->_element->createCDATASection($dataentry->description)); $entry->appendChild($summary); if (isset($dataentry->content)) { $content = $this->_element->createElement('content'); $content->setAttribute('type', 'html'); $content->appendChild($this->_element->createCDATASection($dataentry->content)); $entry->appendChild($content); } if (isset($dataentry->category)) { foreach ($dataentry->category as $category) { $node = $this->_element->createElement('category'); $node->setAttribute('term', $category['term']); if (isset($category['scheme'])) { $node->setAttribute('scheme', $category['scheme']); } $entry->appendChild($node); } } if (isset($dataentry->source)) { $source = $this->_element->createElement('source'); $title = $this->_element->createElement('title', $dataentry->source['title']); $source->appendChild($title); $link = $this->_element->createElement('link', $dataentry->source['title']); $link->setAttribute('rel', 'alternate'); $link->setAttribute('href', $dataentry->source['url']); $source->appendChild($link); } if (isset($dataentry->enclosure)) { foreach ($dataentry->enclosure as $enclosure) { $node = $this->_element->createElement('link'); $node->setAttribute('rel', 'enclosure'); $node->setAttribute('href', $enclosure['url']); if (isset($enclosure['type'])) { $node->setAttribute('type', $enclosure['type']); } if (isset($enclosure['length'])) { $node->setAttribute('length', $enclosure['length']); } $entry->appendChild($node); } } if (isset($dataentry->comments)) { $comments = $this->_element->createElementNS('http://wellformedweb.org/CommentAPI/', 'wfw:comment', $dataentry->comments); $entry->appendChild($comments); } if (isset($dataentry->commentRss)) { $comments = $this->_element->createElementNS('http://wellformedweb.org/CommentAPI/', 'wfw:commentRss', $dataentry->commentRss); $entry->appendChild($comments); } $root->appendChild($entry); } } /** * Override Zend_Feed_Element to allow formated feeds * * @return string */ public function saveXml() { // Return a complete document including XML prologue. $doc = new DOMDocument($this->_element->ownerDocument->version, $this->_element->ownerDocument->actualEncoding); $doc->appendChild($doc->importNode($this->_element, true)); $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 ATOM because headers have already been sent.'); } header('Content-type: application/atom+xml; charset: ' . $this->_element->ownerDocument->actualEncoding); echo $this->saveXML(); } }