public static function getCsrfToken()
{
$token = Star_Config::get('resources.token');
$ip = Star_Http_Request::getIp();
$user_agent = Star_Http_Request::getHttpAgent();
$temp_array = array($token, $ip, $user_agent);
sort($temp_array, SORT_STRING);
return md5(implode('', $temp_array));
}