plugins/af_zz_imgsetsizes/init.php

   1 <?php
   2 class Af_Zz_ImgSetSizes extends Plugin {
   3         private $host;
   4
   5         function about() {
   6                 return array(1.0,
   7                         "Set width/height attributes for images in articles (requires CURL and GD)",
   8                         "fox");
   9         }
  10
  11         function flags() {
  12                 return array("needs_curl" => true);
  13         }
  14
  15         function init($host) {
  16                 $this->host = $host;
  17
  18                 if (function_exists("curl_init") && function_exists("getimagesize")) {
  19                         $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
  20                 }
  21         }
  22
  23         function hook_article_filter($article) {
  24
  25                 if (defined('NO_CURL') || !function_exists("curl_init"))
  26                         return $article;
  27
  28                 $charset_hack = '<head>
  29                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  30                 </head>';
  31
  32                 $doc = new DOMDocument();
  33                 $doc->loadHTML($charset_hack . $article["content"]);
  34
  35                 $found = false;
  36
  37                 if ($doc) {
  38                         $xpath = new DOMXpath($doc);
  39
  40                         $images = $xpath->query('(//img[@src])');
  41
  42                         foreach ($images as $img) {
  43                                 $src = $img->getAttribute("src");
  44
  45                                 $ch = curl_init($src);
  46                                 curl_setopt($ch, CURLOPT_HEADER, 0);
  47                                 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  48                                 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
  49                                 curl_setopt($ch, CURLOPT_RANGE, "0-32768");
  50
  51                                 @$result = curl_exec($ch);
  52                                 $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  53
  54                                 if ($result && ($http_code == 200 || $http_code == 206)) {
  55                                         $filename = tempnam(sys_get_temp_dir(), "ttsizecheck");
  56
  57                                         if ($filename) {
  58                                                 $fh = fopen($filename, "w");
  59                                                 if ($fh) {
  60                                                         fwrite($fh, $result);
  61                                                         fclose($fh);
  62
  63                                                         @$info = getimagesize($filename);
  64
  65                                                         if ($info && $info[0] > 0 && $info[1] > 0) {
  66                                                                 $img->setAttribute("width", $info[0]);
  67                                                                 $img->setAttribute("height", $info[1]);
  68                                                                 $found = true;
  69                                                         }
  70
  71                                                         unlink($filename);
  72                                                 }
  73                                         }
  74                                 }
  75                         }
  76
  77                         if ($found) {
  78                                 $doc->removeChild($doc->firstChild); //remove doctype
  79                                 $article["content"] = $doc->saveHTML();
  80                         }
  81                 }
  82
  83                 return $article;
  84
  85         }
  86
  87
  88         function api_version() {
  89                 return 2;
  90         }
  91
  92 }
  93 ?>