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