HTMLPurifier 4.4.0
/home/ezyang/Dev/htmlpurifier/library/HTMLPurifier/AttrDef/URI/IPv4.php
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00001 <?php
00002 
00007 class HTMLPurifier_AttrDef_URI_IPv4 extends HTMLPurifier_AttrDef
00008 {
00009 
00013     protected $ip4;
00014 
00015     public function validate($aIP, $config, $context) {
00016 
00017         if (!$this->ip4) $this->_loadRegex();
00018 
00019         if (preg_match('#^' . $this->ip4 . '$#s', $aIP))
00020         {
00021                 return $aIP;
00022         }
00023 
00024         return false;
00025 
00026     }
00027 
00032     protected function _loadRegex() {
00033         $oct = '(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])'; // 0-255
00034         $this->ip4 = "(?:{$oct}\\.{$oct}\\.{$oct}\\.{$oct})";
00035     }
00036 
00037 }
00038 
00039 // vim: et sw=4 sts=4