src/Wallabag/CoreBundle/Helper/ContentProxy.php

   1 <?php
   2
   3 namespace Wallabag\CoreBundle\Helper;
   4
   5 use Graby\Graby;
   6 use Psr\Log\LoggerInterface as Logger;
   7 use Wallabag\CoreBundle\Entity\Entry;
   8 use Wallabag\CoreBundle\Tools\Utils;
   9
  10 /**
  11  * This kind of proxy class take care of getting the content from an url
  12  * and update the entry with what it found.
  13  */
  14 class ContentProxy
  15 {
  16     protected $graby;
  17     protected $tagger;
  18     protected $logger;
  19
  20     public function __construct(Graby $graby, RuleBasedTagger $tagger, Logger $logger)
  21     {
  22         $this->graby = $graby;
  23         $this->tagger = $tagger;
  24         $this->logger = $logger;
  25     }
  26
  27     /**
  28      * Fetch content using graby and hydrate given entry with results information.
  29      * In case we couldn't find content, we'll try to use Open Graph data.
  30      *
  31      * @param Entry  $entry Entry to update
  32      * @param string $url   Url to grab content for
  33      *
  34      * @return Entry
  35      */
  36     public function updateEntry(Entry $entry, $url)
  37     {
  38         $content = $this->graby->fetchContent($url);
  39
  40         $title = $content['title'];
  41         if (!$title && isset($content['open_graph']['og_title'])) {
  42             $title = $content['open_graph']['og_title'];
  43         }
  44
  45         $html = $content['html'];
  46         if (false === $html) {
  47             $html = '<p>Unable to retrieve readable content.</p>';
  48
  49             if (isset($content['open_graph']['og_description'])) {
  50                 $html .= '<p><i>But we found a short description: </i></p>';
  51                 $html .= $content['open_graph']['og_description'];
  52             }
  53         }
  54
  55         $entry->setUrl($content['url'] ?: $url);
  56         $entry->setTitle($title);
  57         $entry->setContent($html);
  58         $entry->setLanguage($content['language']);
  59         $entry->setMimetype($content['content_type']);
  60         $entry->setReadingTime(Utils::getReadingTime($html));
  61         $entry->setDomainName(parse_url($entry->getUrl(), PHP_URL_HOST));
  62
  63         if (isset($content['open_graph']['og_image'])) {
  64             $entry->setPreviewPicture($content['open_graph']['og_image']);
  65         }
  66
  67         try {
  68             $this->tagger->tag($entry);
  69         } catch (\Exception $e) {
  70             $this->logger->error('Error while trying to automatically tag an entry.', array(
  71                 'entry_url' => $url,
  72                 'error_msg' => $e->getMessage(),
  73             ));
  74         }
  75
  76         return $entry;
  77     }
  78 }