private function _xss_check() {
        static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');
        if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
                        system_error('request_tainting');
        }
        if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
                        $temp = $_SERVER['REQUEST_URI'];
        } elseif(empty ($_GET['formhash'])) {
                        $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
        } else {
                        $temp = '';
        }
        if(!empty($temp)) {
                $temp = strtoupper(urldecode(urldecode($temp)));
                foreach ($check as $str) {
                                if(strpos($temp, $str) !== false) {
                                                system_error('request_tainting');
                                }
                }
        }
        return true;
}
復(fù)制代碼

private function _xss_check() {
        $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
        if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
                        system_error('request_tainting');
        }
        return true;
}
復(fù)制代碼