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                 $owner_uid = $article["owner_uid"];
  19
  20                 $force = false;
  21
  22                 if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
  23                         if (strpos($article["plugin_data"], "redditimgur,$owner_uid:") === FALSE || $force) {
  24                                 $doc = new DOMDocument();
  25                                 @$doc->loadHTML($article["content"]);
  26
  27                                 if ($doc) {
  28                                         $xpath = new DOMXPath($doc);
  29                                         $entries = $xpath->query('(//a[@href]|//img[@src])');
  30
  31                                         $found = false;
  32
  33                                         foreach ($entries as $entry) {
  34                                                 if ($entry->hasAttribute("href")) {
  35                                                         if (preg_match("/\.(jpg|jpeg|gif|png)$/i", $entry->getAttribute("href"))) {
  36
  37                                                                 $img = $doc->createElement('img');
  38                                                                 $img->setAttribute("src", $entry->getAttribute("href"));
  39
  40                                                                 $br = $doc->createElement('br');
  41                                                                 $entry->parentNode->insertBefore($img, $entry);
  42                                                                 $entry->parentNode->insertBefore($br, $entry);
  43
  44                                                                 $found = true;
  45                                                         }
  46
  47                                                         // links to imgur pages
  48                                                         $matches = array();
  49                                                         if (preg_match("/^http:\/\/imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
  50
  51                                                                 $token = $matches[1];
  52
  53                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
  54                                                                         false, false, false, false, 10);
  55
  56                                                                 if ($album_content && $token) {
  57                                                                         $adoc = new DOMDocument();
  58                                                                         @$adoc->loadHTML($album_content);
  59
  60                                                                         if ($adoc) {
  61                                                                                 $axpath = new DOMXPath($adoc);
  62                                                                                 $aentries = $axpath->query('(//img[@src])');
  63
  64                                                                                 foreach ($aentries as $aentry) {
  65                                                                                         if (preg_match("/^http:\/\/i.imgur.com\/$token\./", $aentry->getAttribute("src"))) {
  66                                                                                                 $img = $doc->createElement('img');
  67                                                                                                 $img->setAttribute("src", $aentry->getAttribute("src"));
  68
  69                                                                                                 $br = $doc->createElement('br');
  70
  71                                                                                                 $entry->parentNode->insertBefore($img, $entry);
  72                                                                                                 $entry->parentNode->insertBefore($br, $entry);
  73
  74                                                                                                 $found = true;
  75
  76                                                                                                 break;
  77                                                                                         }
  78                                                                                 }
  79                                                                         }
  80                                                                 }
  81                                                         }
  82
  83                                                         // linked albums, ffs
  84                                                         if (preg_match("/^http:\/\/imgur.com\/a\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
  85
  86                                                                 $album_content = fetch_file_contents($entry->getAttribute("href"),
  87                                                                         false, false, false, false, 10);
  88
  89                                                                 if ($album_content) {
  90                                                                         $adoc = new DOMDocument();
  91                                                                         @$adoc->loadHTML($album_content);
  92
  93                                                                         if ($adoc) {
  94                                                                                 $axpath = new DOMXPath($adoc);
  95                                                                                 $aentries = $axpath->query("//div[@class='image']//a[@href and @class='zoom']");
  96
  97                                                                                 foreach ($aentries as $aentry) {
  98                                                                                         $img = $doc->createElement('img');
  99                                                                                         $img->setAttribute("src", $aentry->getAttribute("href"));
 100                                                                                         $entry->parentNode->insertBefore($doc->createElement('br'), $entry);
 101
 102                                                                                         $br = $doc->createElement('br');
 103
 104                                                                                         $entry->parentNode->insertBefore($img, $entry);
 105                                                                                         $entry->parentNode->insertBefore($br, $entry);
 106
 107                                                                                         $found = true;
 108                                                                                 }
 109                                                                         }
 110                                                                 }
 111                                                         }
 112                                                 }
 113
 114                                                 // remove tiny thumbnails
 115                                                 if ($entry->hasAttribute("src")) {
 116                                                         if ($entry->parentNode && $entry->parentNode->parentNode) {
 117                                                                 $entry->parentNode->parentNode->removeChild($entry->parentNode);
 118                                                         }
 119                                                 }
 120                                         }
 121
 122                                         $node = $doc->getElementsByTagName('body')->item(0);
 123
 124                                         if ($node && $found) {
 125                                                 $article["content"] = $doc->saveXML($node);
 126                                                 if (!$force) $article["plugin_data"] = "redditimgur,$owner_uid:" . $article["plugin_data"];
 127                                         }
 128                                 }
 129                         } else if (isset($article["stored"]["content"])) {
 130                                 $article["content"] = $article["stored"]["content"];
 131                         }
 132                 }
 133
 134                 return $article;
 135         }
 136
 137         function api_version() {
 138                 return 2;
 139         }
 140
 141 }
 142 ?>