plugins/af_redditimgur/init.php

   1 <?php
   2 class Af_RedditImgur extends Plugin {
   3         private $host;
   4
   5         function about() {
   6                 return array(1.0,
   7                         "Inline image links in Reddit RSS feeds",
   8                         "fox");
   9         }
  10
  11         function init($host) {
  12                 $this->host = $host;
  13
  14                 $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
  15         }
  16
  17         function hook_article_filter($article) {
  18
  19                 if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
  20                                 $doc = new DOMDocument();
  21                                 @$doc->loadHTML($article["content"]);
  22
  23                                 if ($doc) {
  24                                         $xpath = new DOMXPath($doc);
  25                                         $entries = $xpath->query('(//a[@href]|//img[@src])');
  26
  27                                         $found = false;
  28
  29                                         foreach ($entries as $entry) {
  30                                                 if ($entry->hasAttribute("href")) {
  31
  32                                                         if (preg_match("/\.(gifv)$/i", $entry->getAttribute("href"))) {
  33
  34                                                                 $video = $doc->createElement('video');
  35                                                                 $video->setAttribute("autoplay", "1");
  36                                                                 $video->setAttribute("loop", "1");
  37
  38                                                                 $source = $doc->createElement('source');
  39                                                                 $source->setAttribute("src", str_replace(".gifv", ".mp4", $entry->getAttribute("href")));
  40                                                                 $source->setAttribute("type", "video/mp4");
  41
  42                                                                 $video->appendChild($source);
  43
  44                                                                 $br = $doc->createElement('br');
  45                                                                 $entry->parentNode->insertBefore($video, $entry);
  46                                                                 $entry->parentNode->insertBefore($br, $entry);
  47
  48                                                                 $img = $doc->createElement('img');
  49                                                                 $img->setAttribute("src",
  50                                                                         "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
  51
  52                                                                 $entry->parentNode->insertBefore($img, $entry);
  53
  54                                                                 $found = true;
  55                                                         }
  56
  57                                                         if (preg_match("/\.(jpg|jpeg|gif|png)(\?[0-9])?$/i", $entry->getAttribute("href"))) {
  58
  59                                                                 $img = $doc->createElement('img');
  60                                                                 $img->setAttribute("src", $entry->getAttribute("href"));
  61
  62                                                                 $br = $doc->createElement('br');
  63                                                                 $entry->parentNode->insertBefore($img, $entry);
  64                                                                 $entry->parentNode->insertBefore($br, $entry);
  65
  66                                                                 $found = true;
  67                                                         }
  68
  69                                                         // links to imgur pages
  70                                                         $matches = array();
  71                                                         if (preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
  72
  73                                                                 $token = $matches[2];
  74
  75                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
  76                                                                         false, false, false, false, 10);
  77
  78                                                                 if ($album_content && $token) {
  79                                                                         $adoc = new DOMDocument();
  80                                                                         @$adoc->loadHTML($album_content);
  81
  82                                                                         if ($adoc) {
  83                                                                                 $axpath = new DOMXPath($adoc);
  84                                                                                 $aentries = $axpath->query('(//img[@src])');
  85
  86                                                                                 foreach ($aentries as $aentry) {
  87                                                                                         if (preg_match("/\/\/i.imgur.com\/$token\./", $aentry->getAttribute("src"))) {
  88                                                                                                 $img = $doc->createElement('img');
  89                                                                                                 $img->setAttribute("src", $aentry->getAttribute("src"));
  90
  91                                                                                                 $br = $doc->createElement('br');
  92
  93                                                                                                 $entry->parentNode->insertBefore($img, $entry);
  94                                                                                                 $entry->parentNode->insertBefore($br, $entry);
  95
  96                                                                                                 $found = true;
  97
  98                                                                                                 break;
  99                                                                                         }
 100                                                                                 }
 101                                                                         }
 102                                                                 }
 103                                                         }
 104
 105                                                         // linked albums, ffs
 106                                                         if (preg_match("/^https?:\/\/imgur.com\/(a|album)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
 107
 108                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
 109                                                                         false, false, false, false, 10);
 110
 111                                                                 if ($album_content) {
 112                                                                         $adoc = new DOMDocument();
 113                                                                         @$adoc->loadHTML($album_content);
 114
 115                                                                         if ($adoc) {
 116                                                                                 $axpath = new DOMXPath($adoc);
 117                                                                                 $aentries = $axpath->query("//meta[@property='og:image']");
 118                                                                                 $urls = array();
 119
 120                                                                                 foreach ($aentries as $aentry) {
 121
 122                                                                                         if (!in_array($aentry->getAttribute("content"), $urls)) {
 123                                                                                                 $img = $doc->createElement('img');
 124                                                                                                 $img->setAttribute("src", $aentry->getAttribute("content"));
 125                                                                                                 $entry->parentNode->insertBefore($doc->createElement('br'), $entry);
 126
 127                                                                                                 $br = $doc->createElement('br');
 128
 129                                                                                                 $entry->parentNode->insertBefore($img, $entry);
 130                                                                                                 $entry->parentNode->insertBefore($br, $entry);
 131
 132                                                                                                 array_push($urls, $aentry->getAttribute("content"));
 133
 134                                                                                                 $found = true;
 135                                                                                         }
 136                                                                                 }
 137                                                                         }
 138                                                                 }
 139                                                         }
 140                                                 }
 141
 142                                                 // remove tiny thumbnails
 143                                                 if ($entry->hasAttribute("src")) {
 144                                                         if ($entry->parentNode && $entry->parentNode->parentNode) {
 145                                                                 $entry->parentNode->parentNode->removeChild($entry->parentNode);
 146                                                         }
 147                                                 }
 148                                         }
 149
 150                                         $node = $doc->getElementsByTagName('body')->item(0);
 151
 152                                         if ($node && $found) {
 153                                                 $article["content"] = $doc->saveXML($node);
 154                                         }
 155                                 }
 156                 }
 157
 158                 return $article;
 159         }
 160
 161         function api_version() {
 162                 return 2;
 163         }
 164
 165 }
 166 ?>