lib/htmlpurifier/HTMLPurifier/Filter/YouTube.php

   1 <?php
   2
   3 require_once 'HTMLPurifier/Filter.php';
   4
   5 class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter
   6 {
   7
   8     var $name = 'YouTube preservation';
   9
  10     function preFilter($html, $config, &$context) {
  11         $pre_regex = '#<object[^>]+>.+?'.
  12             'http://www.youtube.com/v/([A-Za-z0-9\-_]+).+?</object>#s';
  13         $pre_replace = '<span class="youtube-embed">\1</span>';
  14         return preg_replace($pre_regex, $pre_replace, $html);
  15     }
  16
  17     function postFilter($html, $config, &$context) {
  18         $post_regex = '#<span class="youtube-embed">([A-Za-z0-9\-_]+)</span>#';
  19         $post_replace = '<object width="425" height="350" '.
  20             'data="http://www.youtube.com/v/\1">'.
  21             '<param name="movie" value="http://www.youtube.com/v/\1"></param>'.
  22             '<param name="wmode" value="transparent"></param>'.
  23             '<!--[if IE]>'.
  24             '<embed src="http://www.youtube.com/v/\1"'.
  25             'type="application/x-shockwave-flash"'.
  26             'wmode="transparent" width="425" height="350" />'.
  27             '<![endif]-->'.
  28             '</object>';
  29         return preg_replace($post_regex, $post_replace, $html);
  30     }
  31
  32 }
  33
  34 ?>