src/Wallabag/CoreBundle/Helper/ContentProxy.php

   1 <?php
   2
   3 namespace Wallabag\CoreBundle\Helper;
   4
   5 use Graby\Graby;
   6 use Wallabag\CoreBundle\Entity\Entry;
   7 use Wallabag\CoreBundle\Tools\Utils;
   8
   9 /**
  10  * This kind of proxy class take care of getting the content from an url
  11  * and update the entry with what it found.
  12  */
  13 class ContentProxy
  14 {
  15     protected $graby;
  16
  17     public function __construct(Graby $graby)
  18     {
  19         $this->graby = $graby;
  20     }
  21
  22     /**
  23      * Fetch content using graby and hydrate given entry with results information.
  24      * In case we couldn't find content, we'll try to use Open Graph data.
  25      *
  26      * @param Entry  $entry Entry to update
  27      * @param string $url   Url to grab content for
  28      *
  29      * @return Entry
  30      */
  31     public function updateEntry(Entry $entry, $url)
  32     {
  33         $content = $this->graby->fetchContent($url);
  34
  35         $title = $content['title'];
  36         if (!$title && isset($content['open_graph']['og_title'])) {
  37             $title = $content['open_graph']['og_title'];
  38         }
  39
  40         $html = $content['html'];
  41         if (false === $html) {
  42             $html = '<p>Unable to retrieve readable content.</p>';
  43
  44             if (isset($content['open_graph']['og_description'])) {
  45                 $html .= '<p><i>But we found a short description: </i></p>';
  46                 $html .= $content['open_graph']['og_description'];
  47             }
  48         }
  49
  50         $entry->setUrl($content['url'] ?: $url);
  51         $entry->setTitle($title);
  52         $entry->setContent($html);
  53         $entry->setLanguage($content['language']);
  54         $entry->setMimetype($content['content_type']);
  55         $entry->setReadingTime(Utils::getReadingTime($html));
  56         $entry->setDomainName(parse_url($entry->getUrl(), PHP_URL_HOST));
  57
  58         if (isset($content['open_graph']['og_image'])) {
  59             $entry->setPreviewPicture($content['open_graph']['og_image']);
  60         }
  61
  62         return $entry;
  63     }
  64 }