Chris@0: <?php
Chris@0: /**
Chris@0:  * Zend Framework (http://framework.zend.com/)
Chris@0:  *
Chris@0:  * @link      http://github.com/zendframework/zf2 for the canonical source repository
Chris@0:  * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
Chris@0:  * @license   http://framework.zend.com/license/new-bsd New BSD License
Chris@0:  */
Chris@0: 
Chris@0: namespace Zend\Feed\Reader\Feed;
Chris@0: 
Chris@0: use DateTime;
Chris@0: use DOMDocument;
Chris@0: use Zend\Feed\Reader;
Chris@0: use Zend\Feed\Reader\Collection;
Chris@0: use Zend\Feed\Reader\Exception;
Chris@0: 
Chris@0: /**
Chris@0: */
Chris@0: class Rss extends AbstractFeed
Chris@0: {
Chris@0:     /**
Chris@0:      * Constructor
Chris@0:      *
Chris@0:      * @param  DOMDocument $dom
Chris@0:      * @param  string $type
Chris@0:      */
Chris@0:     public function __construct(DOMDocument $dom, $type = null)
Chris@0:     {
Chris@0:         parent::__construct($dom, $type);
Chris@0: 
Chris@0:         $manager = Reader\Reader::getExtensionManager();
Chris@0: 
Chris@0:         $feed = $manager->get('DublinCore\Feed');
Chris@0:         $feed->setDomDocument($dom);
Chris@0:         $feed->setType($this->data['type']);
Chris@0:         $feed->setXpath($this->xpath);
Chris@0:         $this->extensions['DublinCore\Feed'] = $feed;
Chris@0: 
Chris@0:         $feed = $manager->get('Atom\Feed');
Chris@0:         $feed->setDomDocument($dom);
Chris@0:         $feed->setType($this->data['type']);
Chris@0:         $feed->setXpath($this->xpath);
Chris@0:         $this->extensions['Atom\Feed'] = $feed;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10
Chris@0:             && $this->getType() !== Reader\Reader::TYPE_RSS_090
Chris@0:         ) {
Chris@0:             $xpathPrefix = '/rss/channel';
Chris@0:         } else {
Chris@0:             $xpathPrefix = '/rdf:RDF/rss:channel';
Chris@0:         }
Chris@0:         foreach ($this->extensions as $extension) {
Chris@0:             $extension->setXpathPrefix($xpathPrefix);
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get a single author
Chris@0:      *
Chris@0:      * @param  int $index
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getAuthor($index = 0)
Chris@0:     {
Chris@0:         $authors = $this->getAuthors();
Chris@0: 
Chris@0:         if (isset($authors[$index])) {
Chris@0:             return $authors[$index];
Chris@0:         }
Chris@0: 
Chris@0:         return;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get an array with feed authors
Chris@0:      *
Chris@0:      * @return array
Chris@0:      */
Chris@0:     public function getAuthors()
Chris@0:     {
Chris@0:         if (array_key_exists('authors', $this->data)) {
Chris@0:             return $this->data['authors'];
Chris@0:         }
Chris@0: 
Chris@0:         $authors = [];
Chris@0:         $authorsDc = $this->getExtension('DublinCore')->getAuthors();
Chris@12:         if (! empty($authorsDc)) {
Chris@0:             foreach ($authorsDc as $author) {
Chris@0:                 $authors[] = [
Chris@0:                     'name' => $author['name']
Chris@0:                 ];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         /**
Chris@0:          * Technically RSS doesn't specific author element use at the feed level
Chris@0:          * but it's supported on a "just in case" basis.
Chris@0:          */
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10
Chris@0:         && $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $list = $this->xpath->query('//author');
Chris@0:         } else {
Chris@0:             $list = $this->xpath->query('//rss:author');
Chris@0:         }
Chris@0:         if ($list->length) {
Chris@0:             foreach ($list as $author) {
Chris@0:                 $string = trim($author->nodeValue);
Chris@0:                 $data = [];
Chris@0:                 // Pretty rough parsing - but it's a catchall
Chris@0:                 if (preg_match("/^.*@[^ ]*/", $string, $matches)) {
Chris@0:                     $data['email'] = trim($matches[0]);
Chris@0:                     if (preg_match("/\((.*)\)$/", $string, $matches)) {
Chris@0:                         $data['name'] = $matches[1];
Chris@0:                     }
Chris@0:                     $authors[] = $data;
Chris@0:                 }
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         if (count($authors) == 0) {
Chris@0:             $authors = $this->getExtension('Atom')->getAuthors();
Chris@0:         } else {
Chris@0:             $authors = new Reader\Collection\Author(
Chris@0:                 Reader\Reader::arrayUnique($authors)
Chris@0:             );
Chris@0:         }
Chris@0: 
Chris@0:         if (count($authors) == 0) {
Chris@0:             $authors = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['authors'] = $authors;
Chris@0: 
Chris@0:         return $this->data['authors'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the copyright entry
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getCopyright()
Chris@0:     {
Chris@0:         if (array_key_exists('copyright', $this->data)) {
Chris@0:             return $this->data['copyright'];
Chris@0:         }
Chris@0: 
Chris@0:         $copyright = null;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $copyright = $this->xpath->evaluate('string(/rss/channel/copyright)');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $copyright && $this->getExtension('DublinCore') !== null) {
Chris@0:             $copyright = $this->getExtension('DublinCore')->getCopyright();
Chris@0:         }
Chris@0: 
Chris@0:         if (empty($copyright)) {
Chris@0:             $copyright = $this->getExtension('Atom')->getCopyright();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $copyright) {
Chris@0:             $copyright = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['copyright'] = $copyright;
Chris@0: 
Chris@0:         return $this->data['copyright'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed creation date
Chris@0:      *
Chris@12:      * @return DateTime|null
Chris@0:      */
Chris@0:     public function getDateCreated()
Chris@0:     {
Chris@0:         return $this->getDateModified();
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed modification date
Chris@0:      *
Chris@0:      * @return DateTime
Chris@0:      * @throws Exception\RuntimeException
Chris@0:      */
Chris@0:     public function getDateModified()
Chris@0:     {
Chris@0:         if (array_key_exists('datemodified', $this->data)) {
Chris@0:             return $this->data['datemodified'];
Chris@0:         }
Chris@0: 
Chris@0:         $date = null;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $dateModified = $this->xpath->evaluate('string(/rss/channel/pubDate)');
Chris@12:             if (! $dateModified) {
Chris@0:                 $dateModified = $this->xpath->evaluate('string(/rss/channel/lastBuildDate)');
Chris@0:             }
Chris@0:             if ($dateModified) {
Chris@0:                 $dateModifiedParsed = strtotime($dateModified);
Chris@0:                 if ($dateModifiedParsed) {
Chris@0:                     $date = new DateTime('@' . $dateModifiedParsed);
Chris@0:                 } else {
Chris@0:                     $dateStandards = [DateTime::RSS, DateTime::RFC822,
Chris@0:                                            DateTime::RFC2822, null];
Chris@0:                     foreach ($dateStandards as $standard) {
Chris@0:                         try {
Chris@0:                             $date = DateTime::createFromFormat($standard, $dateModified);
Chris@0:                             break;
Chris@0:                         } catch (\Exception $e) {
Chris@0:                             if ($standard === null) {
Chris@0:                                 throw new Exception\RuntimeException(
Chris@0:                                     'Could not load date due to unrecognised'
Chris@0:                                     .' format (should follow RFC 822 or 2822):'
Chris@0:                                     . $e->getMessage(),
Chris@12:                                     0,
Chris@12:                                     $e
Chris@0:                                 );
Chris@0:                             }
Chris@0:                         }
Chris@0:                     }
Chris@0:                 }
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@12:         if (! $date) {
Chris@0:             $date = $this->getExtension('DublinCore')->getDate();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $date) {
Chris@0:             $date = $this->getExtension('Atom')->getDateModified();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $date) {
Chris@0:             $date = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['datemodified'] = $date;
Chris@0: 
Chris@0:         return $this->data['datemodified'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed lastBuild date
Chris@0:      *
Chris@0:      * @throws Exception\RuntimeException
Chris@0:      * @return DateTime
Chris@0:      */
Chris@0:     public function getLastBuildDate()
Chris@0:     {
Chris@0:         if (array_key_exists('lastBuildDate', $this->data)) {
Chris@0:             return $this->data['lastBuildDate'];
Chris@0:         }
Chris@0: 
Chris@0:         $date = null;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $lastBuildDate = $this->xpath->evaluate('string(/rss/channel/lastBuildDate)');
Chris@0:             if ($lastBuildDate) {
Chris@0:                 $lastBuildDateParsed = strtotime($lastBuildDate);
Chris@0:                 if ($lastBuildDateParsed) {
Chris@0:                     $date = new DateTime('@' . $lastBuildDateParsed);
Chris@0:                 } else {
Chris@0:                     $dateStandards = [DateTime::RSS, DateTime::RFC822,
Chris@0:                                            DateTime::RFC2822, null];
Chris@0:                     foreach ($dateStandards as $standard) {
Chris@0:                         try {
Chris@0:                             $date = DateTime::createFromFormat($standard, $lastBuildDateParsed);
Chris@0:                             break;
Chris@0:                         } catch (\Exception $e) {
Chris@0:                             if ($standard === null) {
Chris@0:                                 throw new Exception\RuntimeException(
Chris@0:                                     'Could not load date due to unrecognised'
Chris@0:                                     .' format (should follow RFC 822 or 2822):'
Chris@0:                                     . $e->getMessage(),
Chris@12:                                     0,
Chris@12:                                     $e
Chris@0:                                 );
Chris@0:                             }
Chris@0:                         }
Chris@0:                     }
Chris@0:                 }
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@12:         if (! $date) {
Chris@0:             $date = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['lastBuildDate'] = $date;
Chris@0: 
Chris@0:         return $this->data['lastBuildDate'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed description
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getDescription()
Chris@0:     {
Chris@0:         if (array_key_exists('description', $this->data)) {
Chris@0:             return $this->data['description'];
Chris@0:         }
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $description = $this->xpath->evaluate('string(/rss/channel/description)');
Chris@0:         } else {
Chris@0:             $description = $this->xpath->evaluate('string(/rdf:RDF/rss:channel/rss:description)');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $description && $this->getExtension('DublinCore') !== null) {
Chris@0:             $description = $this->getExtension('DublinCore')->getDescription();
Chris@0:         }
Chris@0: 
Chris@0:         if (empty($description)) {
Chris@0:             $description = $this->getExtension('Atom')->getDescription();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $description) {
Chris@0:             $description = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['description'] = $description;
Chris@0: 
Chris@0:         return $this->data['description'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed ID
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getId()
Chris@0:     {
Chris@0:         if (array_key_exists('id', $this->data)) {
Chris@0:             return $this->data['id'];
Chris@0:         }
Chris@0: 
Chris@0:         $id = null;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $id = $this->xpath->evaluate('string(/rss/channel/guid)');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $id && $this->getExtension('DublinCore') !== null) {
Chris@0:             $id = $this->getExtension('DublinCore')->getId();
Chris@0:         }
Chris@0: 
Chris@0:         if (empty($id)) {
Chris@0:             $id = $this->getExtension('Atom')->getId();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $id) {
Chris@0:             if ($this->getLink()) {
Chris@0:                 $id = $this->getLink();
Chris@0:             } elseif ($this->getTitle()) {
Chris@0:                 $id = $this->getTitle();
Chris@0:             } else {
Chris@0:                 $id = null;
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['id'] = $id;
Chris@0: 
Chris@0:         return $this->data['id'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed image data
Chris@0:      *
Chris@0:      * @return array|null
Chris@0:      */
Chris@0:     public function getImage()
Chris@0:     {
Chris@0:         if (array_key_exists('image', $this->data)) {
Chris@0:             return $this->data['image'];
Chris@0:         }
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $list = $this->xpath->query('/rss/channel/image');
Chris@0:             $prefix = '/rss/channel/image[1]';
Chris@0:         } else {
Chris@0:             $list = $this->xpath->query('/rdf:RDF/rss:channel/rss:image');
Chris@0:             $prefix = '/rdf:RDF/rss:channel/rss:image[1]';
Chris@0:         }
Chris@0:         if ($list->length > 0) {
Chris@0:             $image = [];
Chris@0:             $value = $this->xpath->evaluate('string(' . $prefix . '/url)');
Chris@0:             if ($value) {
Chris@0:                 $image['uri'] = $value;
Chris@0:             }
Chris@0:             $value = $this->xpath->evaluate('string(' . $prefix . '/link)');
Chris@0:             if ($value) {
Chris@0:                 $image['link'] = $value;
Chris@0:             }
Chris@0:             $value = $this->xpath->evaluate('string(' . $prefix . '/title)');
Chris@0:             if ($value) {
Chris@0:                 $image['title'] = $value;
Chris@0:             }
Chris@0:             $value = $this->xpath->evaluate('string(' . $prefix . '/height)');
Chris@0:             if ($value) {
Chris@0:                 $image['height'] = $value;
Chris@0:             }
Chris@0:             $value = $this->xpath->evaluate('string(' . $prefix . '/width)');
Chris@0:             if ($value) {
Chris@0:                 $image['width'] = $value;
Chris@0:             }
Chris@0:             $value = $this->xpath->evaluate('string(' . $prefix . '/description)');
Chris@0:             if ($value) {
Chris@0:                 $image['description'] = $value;
Chris@0:             }
Chris@0:         } else {
Chris@0:             $image = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['image'] = $image;
Chris@0: 
Chris@0:         return $this->data['image'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed language
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getLanguage()
Chris@0:     {
Chris@0:         if (array_key_exists('language', $this->data)) {
Chris@0:             return $this->data['language'];
Chris@0:         }
Chris@0: 
Chris@0:         $language = null;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $language = $this->xpath->evaluate('string(/rss/channel/language)');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $language && $this->getExtension('DublinCore') !== null) {
Chris@0:             $language = $this->getExtension('DublinCore')->getLanguage();
Chris@0:         }
Chris@0: 
Chris@0:         if (empty($language)) {
Chris@0:             $language = $this->getExtension('Atom')->getLanguage();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $language) {
Chris@0:             $language = $this->xpath->evaluate('string(//@xml:lang[1])');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $language) {
Chris@0:             $language = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['language'] = $language;
Chris@0: 
Chris@0:         return $this->data['language'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get a link to the feed
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getLink()
Chris@0:     {
Chris@0:         if (array_key_exists('link', $this->data)) {
Chris@0:             return $this->data['link'];
Chris@0:         }
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $link = $this->xpath->evaluate('string(/rss/channel/link)');
Chris@0:         } else {
Chris@0:             $link = $this->xpath->evaluate('string(/rdf:RDF/rss:channel/rss:link)');
Chris@0:         }
Chris@0: 
Chris@0:         if (empty($link)) {
Chris@0:             $link = $this->getExtension('Atom')->getLink();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $link) {
Chris@0:             $link = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['link'] = $link;
Chris@0: 
Chris@0:         return $this->data['link'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get a link to the feed XML
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getFeedLink()
Chris@0:     {
Chris@0:         if (array_key_exists('feedlink', $this->data)) {
Chris@0:             return $this->data['feedlink'];
Chris@0:         }
Chris@0: 
Chris@0:         $link = $this->getExtension('Atom')->getFeedLink();
Chris@0: 
Chris@0:         if ($link === null || empty($link)) {
Chris@0:             $link = $this->getOriginalSourceUri();
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['feedlink'] = $link;
Chris@0: 
Chris@0:         return $this->data['feedlink'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed generator entry
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getGenerator()
Chris@0:     {
Chris@0:         if (array_key_exists('generator', $this->data)) {
Chris@0:             return $this->data['generator'];
Chris@0:         }
Chris@0: 
Chris@0:         $generator = null;
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $generator = $this->xpath->evaluate('string(/rss/channel/generator)');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $generator) {
Chris@0:             if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:                 $generator = $this->xpath->evaluate('string(/rss/channel/atom:generator)');
Chris@0:             } else {
Chris@0:                 $generator = $this->xpath->evaluate('string(/rdf:RDF/rss:channel/atom:generator)');
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         if (empty($generator)) {
Chris@0:             $generator = $this->getExtension('Atom')->getGenerator();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $generator) {
Chris@0:             $generator = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['generator'] = $generator;
Chris@0: 
Chris@0:         return $this->data['generator'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the feed title
Chris@0:      *
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getTitle()
Chris@0:     {
Chris@0:         if (array_key_exists('title', $this->data)) {
Chris@0:             return $this->data['title'];
Chris@0:         }
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $title = $this->xpath->evaluate('string(/rss/channel/title)');
Chris@0:         } else {
Chris@0:             $title = $this->xpath->evaluate('string(/rdf:RDF/rss:channel/rss:title)');
Chris@0:         }
Chris@0: 
Chris@12:         if (! $title && $this->getExtension('DublinCore') !== null) {
Chris@0:             $title = $this->getExtension('DublinCore')->getTitle();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $title) {
Chris@0:             $title = $this->getExtension('Atom')->getTitle();
Chris@0:         }
Chris@0: 
Chris@12:         if (! $title) {
Chris@0:             $title = null;
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['title'] = $title;
Chris@0: 
Chris@0:         return $this->data['title'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get an array of any supported Pusubhubbub endpoints
Chris@0:      *
Chris@0:      * @return array|null
Chris@0:      */
Chris@0:     public function getHubs()
Chris@0:     {
Chris@0:         if (array_key_exists('hubs', $this->data)) {
Chris@0:             return $this->data['hubs'];
Chris@0:         }
Chris@0: 
Chris@0:         $hubs = $this->getExtension('Atom')->getHubs();
Chris@0: 
Chris@0:         if (empty($hubs)) {
Chris@0:             $hubs = null;
Chris@0:         } else {
Chris@0:             $hubs = array_unique($hubs);
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['hubs'] = $hubs;
Chris@0: 
Chris@0:         return $this->data['hubs'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get all categories
Chris@0:      *
Chris@0:      * @return Reader\Collection\Category
Chris@0:      */
Chris@0:     public function getCategories()
Chris@0:     {
Chris@0:         if (array_key_exists('categories', $this->data)) {
Chris@0:             return $this->data['categories'];
Chris@0:         }
Chris@0: 
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 &&
Chris@0:             $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $list = $this->xpath->query('/rss/channel//category');
Chris@0:         } else {
Chris@0:             $list = $this->xpath->query('/rdf:RDF/rss:channel//rss:category');
Chris@0:         }
Chris@0: 
Chris@0:         if ($list->length) {
Chris@0:             $categoryCollection = new Collection\Category;
Chris@0:             foreach ($list as $category) {
Chris@0:                 $categoryCollection[] = [
Chris@0:                     'term' => $category->nodeValue,
Chris@0:                     'scheme' => $category->getAttribute('domain'),
Chris@0:                     'label' => $category->nodeValue,
Chris@0:                 ];
Chris@0:             }
Chris@0:         } else {
Chris@0:             $categoryCollection = $this->getExtension('DublinCore')->getCategories();
Chris@0:         }
Chris@0: 
Chris@0:         if (count($categoryCollection) == 0) {
Chris@0:             $categoryCollection = $this->getExtension('Atom')->getCategories();
Chris@0:         }
Chris@0: 
Chris@0:         $this->data['categories'] = $categoryCollection;
Chris@0: 
Chris@0:         return $this->data['categories'];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Read all entries to the internal entries array
Chris@0:      *
Chris@0:      */
Chris@0:     protected function indexEntries()
Chris@0:     {
Chris@0:         if ($this->getType() !== Reader\Reader::TYPE_RSS_10 && $this->getType() !== Reader\Reader::TYPE_RSS_090) {
Chris@0:             $entries = $this->xpath->evaluate('//item');
Chris@0:         } else {
Chris@0:             $entries = $this->xpath->evaluate('//rss:item');
Chris@0:         }
Chris@0: 
Chris@0:         foreach ($entries as $index => $entry) {
Chris@0:             $this->entries[$index] = $entry;
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Register the default namespaces for the current feed format
Chris@0:      *
Chris@0:      */
Chris@0:     protected function registerNamespaces()
Chris@0:     {
Chris@0:         switch ($this->data['type']) {
Chris@0:             case Reader\Reader::TYPE_RSS_10:
Chris@0:                 $this->xpath->registerNamespace('rdf', Reader\Reader::NAMESPACE_RDF);
Chris@0:                 $this->xpath->registerNamespace('rss', Reader\Reader::NAMESPACE_RSS_10);
Chris@0:                 break;
Chris@0: 
Chris@0:             case Reader\Reader::TYPE_RSS_090:
Chris@0:                 $this->xpath->registerNamespace('rdf', Reader\Reader::NAMESPACE_RDF);
Chris@0:                 $this->xpath->registerNamespace('rss', Reader\Reader::NAMESPACE_RSS_090);
Chris@0:                 break;
Chris@0:         }
Chris@0:     }
Chris@0: }