common/oembed.php

   1 <?php
   2
   3 function url_fetch($url)
   4 {
   5         global $services_time;
   6         $ch = curl_init();
   7         curl_setopt($ch, CURLOPT_URL, $url);
   8         curl_setopt($ch, CURLOPT_TIMEOUT, 10);
   9         $user_agent = "Mozilla/5.0 (compatible; dabr; " . BASE_URL . ")";
  10         curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
  11         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  12         $fetch_start = microtime(1);
  13         $response = curl_exec($ch);
  14         curl_close($ch);
  15
  16         $services_time += microtime(1) - $fetch_start;
  17         return $response;
  18 }
  19
  20 function oembed_embed_thumbnails(&$feed)
  21 {
  22         foreach($feed as &$status)
  23         { // Loop through the feed
  24                 if(stripos($status->text, 'NSFW') === FALSE)
  25                 { // Ignore image fetching for tweets containing NSFW
  26                         if ($status->entities)
  27                         { // If there are entities
  28                                 $entities = $status->entities;
  29                                 if($entities->urls)
  30                                 {
  31                                         foreach($entities->urls as $urls)
  32                                         {       // Loop through the URL entities
  33                                                 if($urls->expanded_url != "") { // Use the expanded URL, if it exists, to pass to Oembed provider
  34                                                         $url = $urls->expanded_url;
  35                                                 }
  36                                                 else {
  37                                                         $url = $urls->url;
  38                                                 }
  39                                                 $matched_urls[urlencode($url)][] = $status->id;
  40                                         }
  41                                 } else {
  42                                         //      No URLs, do nothing
  43                                         $matched_urls[] = null;
  44                                 }
  45                         }
  46                 }
  47         }
  48
  49         //      Reduce the array of empty items
  50         foreach ($matched_urls as $key => $value)
  51         {
  52                 if (null == $value)
  53                 {
  54                         unset($matched_urls[$key]);
  55                 }
  56         }
  57
  58         // Make a single API call to Embedkit.
  59         if(defined('EMBEDKIT_KEY') && EMBEDKIT_KEY != "")
  60         {
  61                 //      Only the URLs which we're going to pass to Embedkit
  62                 $justUrls = array_keys($matched_urls);
  63
  64                 $count = count($justUrls);
  65                 if ($count == 0) return;
  66                 // if ($count > 20) {
  67                 //      // Things can slow down with lots of links.
  68                 //      $justUrls = array_chunk ($justUrls, 10);
  69                 //      $justUrls = $justUrls[0];
  70                 // }
  71                 $url = 'https://embedkit.com/api/v1/embed?key='.EMBEDKIT_KEY.'&urls=' . implode(',', $justUrls) . '&format=json';
  72
  73                 $embedly_json = url_fetch($url);
  74                 $oembeds = json_decode($embedly_json);
  75
  76                 if($oembeds->type != 'error')
  77                 {
  78                         //      Single statuses don't come back in an array
  79                         if (!is_array($oembeds))
  80                         {
  81                                 $temp = array(0 => $oembeds);
  82                                 $oembeds = $temp;
  83                         }
  84
  85                         foreach ($justUrls as $index => $url)
  86                         {
  87                                 $thumb = "";
  88                                 $title = "";
  89
  90                                 if ($oembeds[$index]->thumbnail_url) {
  91                                         //      Direct links to files
  92                                         $thumb = $oembeds[$index]->thumbnail_url;
  93                                 }
  94
  95                                 if ($oembeds[$index]->title) {
  96                                         //      Direct links to files
  97                                         $title = $oembeds[$index]->title;
  98                                 }
  99
 100                                 if ($thumb)
 101                                 {       //      Embed the thumbnail
 102                                         $html = theme('external_link', urldecode($url), "<img src=\"" . image_proxy($thumb, "") . "\"" .
 103                                                                                         " title=\"{$title}\" alt=\"{$title}\" class=\"embedded\" />");
 104                                         foreach ($matched_urls[$url] as $statusId)
 105                                         {
 106                                                 $feed[$statusId]->text = $feed[$statusId]->text . '<br />' . '<span class="embed">' . $html . '</span>';
 107                                         }
 108                                 } elseif  ($title)      {       //      Embed a link
 109                                         $html = theme('external_link', urldecode($url), $title);
 110                                         foreach ($matched_urls[$url] as $statusId)
 111                                         {
 112                                                 $feed[$statusId]->text = $feed[$statusId]->text . '<br />' . '<span class="embed">' . $html . '</span>';
 113                                         }
 114                                 }
 115
 116                         }
 117                 }
 118         }
 119 }