library/HTMLPurifier/URIFilter/HostBlacklist.php

   1 <?php
   2
   3 class HTMLPurifier_URIFilter_HostBlacklist extends HTMLPurifier_URIFilter
   4 {
   5     public $name = 'HostBlacklist';
   6     protected $blacklist = array();
   7     public function prepare($config) {
   8         $this->blacklist = $config->get('URI', 'HostBlacklist');
   9         return true;
  10     }
  11     public function filter(&$uri, $config, $context) {
  12         foreach($this->blacklist as $blacklisted_host_fragment) {
  13             if (strpos($uri->host, $blacklisted_host_fragment) !== false) {
  14                 return false;
  15             }
  16         }
  17         return true;
  18     }
  19 }