Rss.php in Zircon Profile 8

Namespace

Zend\Feed\Reader\Entry

File

vendor/zendframework/zend-feed/src/Reader/Entry/Rss.php

<?php

/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */
namespace Zend\Feed\Reader\Entry;

use DateTime;
use DOMElement;
use DOMXPath;
use Zend\Feed\Reader;
use Zend\Feed\Reader\Exception;
class Rss extends AbstractEntry implements EntryInterface {

  /**
   * XPath query for RDF
   *
   * @var string
   */
  protected $xpathQueryRdf = '';

  /**
   * XPath query for RSS
   *
   * @var string
   */
  protected $xpathQueryRss = '';

  /**
   * Constructor
   *
   * @param  DOMElement $entry
   * @param  string $entryKey
   * @param  string $type
   */
  public function __construct(DOMElement $entry, $entryKey, $type = null) {
    parent::__construct($entry, $entryKey, $type);
    $this->xpathQueryRss = '//item[' . ($this->entryKey + 1) . ']';
    $this->xpathQueryRdf = '//rss:item[' . ($this->entryKey + 1) . ']';
    $manager = Reader\Reader::getExtensionManager();
    $extensions = [
      'DublinCore\\Entry',
      'Content\\Entry',
      'Atom\\Entry',
      'WellFormedWeb\\Entry',
      'Slash\\Entry',
      'Thread\\Entry',
    ];
    foreach ($extensions as $name) {
      $extension = $manager
        ->get($name);
      $extension
        ->setEntryElement($entry);
      $extension
        ->setEntryKey($entryKey);
      $extension
        ->setType($type);
      $this->extensions[$name] = $extension;
    }
  }

  /**
   * Get an author entry
   *
   * @param int $index
   * @return string
   */
  public function getAuthor($index = 0) {
    $authors = $this
      ->getAuthors();
    if (isset($authors[$index])) {
      return $authors[$index];
    }
    return;
  }

  /**
   * Get an array with feed authors
   *
   * @return array
   */
  public function getAuthors() {
    if (array_key_exists('authors', $this->data)) {
      return $this->data['authors'];
    }
    $authors = [];
    $authorsDc = $this
      ->getExtension('DublinCore')
      ->getAuthors();
    if (!empty($authorsDc)) {
      foreach ($authorsDc as $author) {
        $authors[] = [
          'name' => $author['name'],
        ];
      }
    }
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $list = $this->xpath
        ->query($this->xpathQueryRss . '//author');
    }
    else {
      $list = $this->xpath
        ->query($this->xpathQueryRdf . '//rss:author');
    }
    if ($list->length) {
      foreach ($list as $author) {
        $string = trim($author->nodeValue);
        $data = [];

        // Pretty rough parsing - but it's a catchall
        if (preg_match("/^.*@[^ ]*/", $string, $matches)) {
          $data['email'] = trim($matches[0]);
          if (preg_match("/\\((.*)\\)\$/", $string, $matches)) {
            $data['name'] = $matches[1];
          }
          $authors[] = $data;
        }
      }
    }
    if (count($authors) == 0) {
      $authors = $this
        ->getExtension('Atom')
        ->getAuthors();
    }
    else {
      $authors = new Reader\Collection\Author(Reader\Reader::arrayUnique($authors));
    }
    if (count($authors) == 0) {
      $authors = null;
    }
    $this->data['authors'] = $authors;
    return $this->data['authors'];
  }

  /**
   * Get the entry content
   *
   * @return string
   */
  public function getContent() {
    if (array_key_exists('content', $this->data)) {
      return $this->data['content'];
    }
    $content = $this
      ->getExtension('Content')
      ->getContent();
    if (!$content) {
      $content = $this
        ->getDescription();
    }
    if (empty($content)) {
      $content = $this
        ->getExtension('Atom')
        ->getContent();
    }
    $this->data['content'] = $content;
    return $this->data['content'];
  }

  /**
   * Get the entry's date of creation
   *
   * @return string
   */
  public function getDateCreated() {
    return $this
      ->getDateModified();
  }

  /**
   * Get the entry's date of modification
   *
   * @throws Exception\RuntimeException
   * @return string
   */
  public function getDateModified() {
    if (array_key_exists('datemodified', $this->data)) {
      return $this->data['datemodified'];
    }
    $date = null;
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $dateModified = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRss . '/pubDate)');
      if ($dateModified) {
        $dateModifiedParsed = strtotime($dateModified);
        if ($dateModifiedParsed) {
          $date = new DateTime('@' . $dateModifiedParsed);
        }
        else {
          $dateStandards = [
            DateTime::RSS,
            DateTime::RFC822,
            DateTime::RFC2822,
            null,
          ];
          foreach ($dateStandards as $standard) {
            try {
              $date = date_create_from_format($standard, $dateModified);
              break;
            } catch (\Exception $e) {
              if ($standard === null) {
                throw new Exception\RuntimeException('Could not load date due to unrecognised' . ' format (should follow RFC 822 or 2822):' . $e
                  ->getMessage(), 0, $e);
              }
            }
          }
        }
      }
    }
    if (!$date) {
      $date = $this
        ->getExtension('DublinCore')
        ->getDate();
    }
    if (!$date) {
      $date = $this
        ->getExtension('Atom')
        ->getDateModified();
    }
    if (!$date) {
      $date = null;
    }
    $this->data['datemodified'] = $date;
    return $this->data['datemodified'];
  }

  /**
   * Get the entry description
   *
   * @return string
   */
  public function getDescription() {
    if (array_key_exists('description', $this->data)) {
      return $this->data['description'];
    }
    $description = null;
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $description = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRss . '/description)');
    }
    else {
      $description = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRdf . '/rss:description)');
    }
    if (!$description) {
      $description = $this
        ->getExtension('DublinCore')
        ->getDescription();
    }
    if (empty($description)) {
      $description = $this
        ->getExtension('Atom')
        ->getDescription();
    }
    if (!$description) {
      $description = null;
    }
    $this->data['description'] = $description;
    return $this->data['description'];
  }

  /**
   * Get the entry enclosure
   * @return string
   */
  public function getEnclosure() {
    if (array_key_exists('enclosure', $this->data)) {
      return $this->data['enclosure'];
    }
    $enclosure = null;
    if ($this
      ->getType() == Reader\Reader::TYPE_RSS_20) {
      $nodeList = $this->xpath
        ->query($this->xpathQueryRss . '/enclosure');
      if ($nodeList->length > 0) {
        $enclosure = new \stdClass();
        $enclosure->url = $nodeList
          ->item(0)
          ->getAttribute('url');
        $enclosure->length = $nodeList
          ->item(0)
          ->getAttribute('length');
        $enclosure->type = $nodeList
          ->item(0)
          ->getAttribute('type');
      }
    }
    if (!$enclosure) {
      $enclosure = $this
        ->getExtension('Atom')
        ->getEnclosure();
    }
    $this->data['enclosure'] = $enclosure;
    return $this->data['enclosure'];
  }

  /**
   * Get the entry ID
   *
   * @return string
   */
  public function getId() {
    if (array_key_exists('id', $this->data)) {
      return $this->data['id'];
    }
    $id = null;
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $id = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRss . '/guid)');
    }
    if (!$id) {
      $id = $this
        ->getExtension('DublinCore')
        ->getId();
    }
    if (empty($id)) {
      $id = $this
        ->getExtension('Atom')
        ->getId();
    }
    if (!$id) {
      if ($this
        ->getPermalink()) {
        $id = $this
          ->getPermalink();
      }
      elseif ($this
        ->getTitle()) {
        $id = $this
          ->getTitle();
      }
      else {
        $id = null;
      }
    }
    $this->data['id'] = $id;
    return $this->data['id'];
  }

  /**
   * Get a specific link
   *
   * @param  int $index
   * @return string
   */
  public function getLink($index = 0) {
    if (!array_key_exists('links', $this->data)) {
      $this
        ->getLinks();
    }
    if (isset($this->data['links'][$index])) {
      return $this->data['links'][$index];
    }
    return;
  }

  /**
   * Get all links
   *
   * @return array
   */
  public function getLinks() {
    if (array_key_exists('links', $this->data)) {
      return $this->data['links'];
    }
    $links = [];
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $list = $this->xpath
        ->query($this->xpathQueryRss . '//link');
    }
    else {
      $list = $this->xpath
        ->query($this->xpathQueryRdf . '//rss:link');
    }
    if (!$list->length) {
      $links = $this
        ->getExtension('Atom')
        ->getLinks();
    }
    else {
      foreach ($list as $link) {
        $links[] = $link->nodeValue;
      }
    }
    $this->data['links'] = $links;
    return $this->data['links'];
  }

  /**
   * Get all categories
   *
   * @return Reader\Collection\Category
   */
  public function getCategories() {
    if (array_key_exists('categories', $this->data)) {
      return $this->data['categories'];
    }
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $list = $this->xpath
        ->query($this->xpathQueryRss . '//category');
    }
    else {
      $list = $this->xpath
        ->query($this->xpathQueryRdf . '//rss:category');
    }
    if ($list->length) {
      $categoryCollection = new Reader\Collection\Category();
      foreach ($list as $category) {
        $categoryCollection[] = [
          'term' => $category->nodeValue,
          'scheme' => $category
            ->getAttribute('domain'),
          'label' => $category->nodeValue,
        ];
      }
    }
    else {
      $categoryCollection = $this
        ->getExtension('DublinCore')
        ->getCategories();
    }
    if (count($categoryCollection) == 0) {
      $categoryCollection = $this
        ->getExtension('Atom')
        ->getCategories();
    }
    $this->data['categories'] = $categoryCollection;
    return $this->data['categories'];
  }

  /**
   * Get a permalink to the entry
   *
   * @return string
   */
  public function getPermalink() {
    return $this
      ->getLink(0);
  }

  /**
   * Get the entry title
   *
   * @return string
   */
  public function getTitle() {
    if (array_key_exists('title', $this->data)) {
      return $this->data['title'];
    }
    $title = null;
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $title = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRss . '/title)');
    }
    else {
      $title = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRdf . '/rss:title)');
    }
    if (!$title) {
      $title = $this
        ->getExtension('DublinCore')
        ->getTitle();
    }
    if (!$title) {
      $title = $this
        ->getExtension('Atom')
        ->getTitle();
    }
    if (!$title) {
      $title = null;
    }
    $this->data['title'] = $title;
    return $this->data['title'];
  }

  /**
   * Get the number of comments/replies for current entry
   *
   * @return string|null
   */
  public function getCommentCount() {
    if (array_key_exists('commentcount', $this->data)) {
      return $this->data['commentcount'];
    }
    $commentcount = $this
      ->getExtension('Slash')
      ->getCommentCount();
    if (!$commentcount) {
      $commentcount = $this
        ->getExtension('Thread')
        ->getCommentCount();
    }
    if (!$commentcount) {
      $commentcount = $this
        ->getExtension('Atom')
        ->getCommentCount();
    }
    if (!$commentcount) {
      $commentcount = null;
    }
    $this->data['commentcount'] = $commentcount;
    return $this->data['commentcount'];
  }

  /**
   * Returns a URI pointing to the HTML page where comments can be made on this entry
   *
   * @return string
   */
  public function getCommentLink() {
    if (array_key_exists('commentlink', $this->data)) {
      return $this->data['commentlink'];
    }
    $commentlink = null;
    if ($this
      ->getType() !== Reader\Reader::TYPE_RSS_10 && $this
      ->getType() !== Reader\Reader::TYPE_RSS_090) {
      $commentlink = $this->xpath
        ->evaluate('string(' . $this->xpathQueryRss . '/comments)');
    }
    if (!$commentlink) {
      $commentlink = $this
        ->getExtension('Atom')
        ->getCommentLink();
    }
    if (!$commentlink) {
      $commentlink = null;
    }
    $this->data['commentlink'] = $commentlink;
    return $this->data['commentlink'];
  }

  /**
   * Returns a URI pointing to a feed of all comments for this entry
   *
   * @return string
   */
  public function getCommentFeedLink() {
    if (array_key_exists('commentfeedlink', $this->data)) {
      return $this->data['commentfeedlink'];
    }
    $commentfeedlink = $this
      ->getExtension('WellFormedWeb')
      ->getCommentFeedLink();
    if (!$commentfeedlink) {
      $commentfeedlink = $this
        ->getExtension('Atom')
        ->getCommentFeedLink('rss');
    }
    if (!$commentfeedlink) {
      $commentfeedlink = $this
        ->getExtension('Atom')
        ->getCommentFeedLink('rdf');
    }
    if (!$commentfeedlink) {
      $commentfeedlink = null;
    }
    $this->data['commentfeedlink'] = $commentfeedlink;
    return $this->data['commentfeedlink'];
  }

  /**
   * Set the XPath query (incl. on all Extensions)
   *
   * @param DOMXPath $xpath
   * @return void
   */
  public function setXpath(DOMXPath $xpath) {
    parent::setXpath($xpath);
    foreach ($this->extensions as $extension) {
      $extension
        ->setXpath($this->xpath);
    }
  }

}

Classes

Name	Description
Rss