/library/Zend/Feed/Reader/FeedSet.php
https://bitbucket.org/hamidrezas/melobit · PHP · 148 lines · 74 code · 13 blank · 61 comment · 23 complexity · 655d939ad24a6d311a958280d075fb47 MD5 · raw file
- <?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) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: FeedSet.php 24594 2012-01-05 21:27:01Z matthew $
- */
- /**
- * @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) 2005-2012 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);
- }
- }