plugins/af_redditimgur/init.php

   1 <?php
   2 class Af_RedditImgur extends Plugin {
   3
   4         private $link;
   5         private $host;
   6
   7         function about() {
   8                 return array(1.0,
   9                         "Inline image links in Reddit RSS feeds",
  10                         "fox");
  11         }
  12
  13         function init($host) {
  14                 $this->link = $host->get_link();
  15                 $this->host = $host;
  16
  17                 $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
  18         }
  19
  20         function hook_article_filter($article) {
  21                 $owner_uid = $article["owner_uid"];
  22
  23                 $force = false;
  24
  25                 if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
  26                         if (strpos($article["plugin_data"], "redditimgur,$owner_uid:") === FALSE || $force) {
  27                                 $doc = new DOMDocument();
  28                                 @$doc->loadHTML($article["content"]);
  29
  30                                 if ($doc) {
  31                                         $xpath = new DOMXPath($doc);
  32                                         $entries = $xpath->query('(//a[@href]|//img[@src])');
  33
  34                                         $found = false;
  35
  36                                         foreach ($entries as $entry) {
  37                                                 if ($entry->hasAttribute("href")) {
  38                                                         if (preg_match("/\.(jpg|jpeg|gif|png)$/i", $entry->getAttribute("href"))) {
  39
  40                                                                 $img = $doc->createElement('img');
  41                                                                 $img->setAttribute("src", $entry->getAttribute("href"));
  42
  43                                                                 $entry->parentNode->replaceChild($img, $entry);
  44
  45                                                                 $found = true;
  46                                                         }
  47
  48                                                         // links to imgur pages
  49                                                         $matches = array();
  50                                                         if (preg_match("/^http:\/\/imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
  51
  52                                                                 $token = $matches[1];
  53
  54                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
  55                                                                         false, false, false, false, 10);
  56
  57                                                                 if ($album_content && $token) {
  58                                                                         $adoc = new DOMDocument();
  59                                                                         @$adoc->loadHTML($album_content);
  60
  61                                                                         if ($adoc) {
  62                                                                                 $axpath = new DOMXPath($adoc);
  63                                                                                 $aentries = $axpath->query('(//img[@src])');
  64
  65                                                                                 foreach ($aentries as $aentry) {
  66                                                                                         if (preg_match("/^http:\/\/i.imgur.com\/$token\./", $aentry->getAttribute("src"))) {
  67                                                                                                 $img = $doc->createElement('img');
  68                                                                                                 $img->setAttribute("src", $aentry->getAttribute("src"));
  69                                                                                                 $entry->parentNode->insertBefore($img, $entry);
  70                                                                                                 $found = true;
  71
  72                                                                                                 break;
  73                                                                                         }
  74                                                                                 }
  75                                                                         }
  76                                                                 }
  77                                                         }
  78
  79                                                         // linked albums, ffs
  80                                                         if (preg_match("/^http:\/\/imgur.com\/a\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
  81
  82                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
  83                                                                         false, false, false, false, 10);
  84
  85                                                                 if ($album_content) {
  86                                                                         $adoc = new DOMDocument();
  87                                                                         @$adoc->loadHTML($album_content);
  88
  89                                                                         if ($adoc) {
  90                                                                                 $axpath = new DOMXPath($adoc);
  91                                                                                 $aentries = $axpath->query("//div[@class='image']//a[@href and @class='zoom']");
  92
  93                                                                                 foreach ($aentries as $aentry) {
  94                                                                                         $img = $doc->createElement('img');
  95                                                                                         $img->setAttribute("src", $aentry->getAttribute("href"));
  96                                                                                         $entry->parentNode->insertBefore($doc->createElement('br'), $entry);
  97                                                                                         $entry->parentNode->insertBefore($img, $entry);
  98                                                                                         $found = true;
  99                                                                                 }
 100                                                                         }
 101                                                                 }
 102                                                         }
 103                                                 }
 104
 105                                                 // remove tiny thumbnails
 106                                                 if ($entry->hasAttribute("src")) {
 107                                                         if ($entry->parentNode && $entry->parentNode->parentNode) {
 108                                                                 $entry->parentNode->parentNode->removeChild($entry->parentNode);
 109                                                         }
 110                                                 }
 111                                         }
 112
 113                                         $node = $doc->getElementsByTagName('body')->item(0);
 114
 115                                         if ($node && $found) {
 116                                                 $article["content"] = $doc->saveXML($node);
 117                                                 if (!$force) $article["plugin_data"] = "redditimgur,$owner_uid:" . $article["plugin_data"];
 118                                         }
 119                                 }
 120                         } else if (isset($article["stored"]["content"])) {
 121                                 $article["content"] = $article["stored"]["content"];
 122                         }
 123                 }
 124
 125                 return $article;
 126         }
 127 }
 128 ?>