首页 > 电脑控 > Discuz搜索报错:”您当前的访问请求当中含有非法字符,已经被系统拒绝” 解决方法
2014
07-06

Discuz搜索报错:”您当前的访问请求当中含有非法字符,已经被系统拒绝” 解决方法

升级了discuz到3.2版本,发现搜索引擎报错。

错误提示:

Discuz! System Error

  • 您当前的访问请求当中含有非法字符,已经被系统拒绝
  • PHP Debug

    • [Line: 0022]search.php(discuz_application->init)
    • [Line: 0071]source/class/discuz/discuz_application.php(discuz_application->_init_misc)
    • [Line: 0552]source/class/discuz/discuz_application.php(discuz_application->_xss_check)
    • [Line: 0355]source/class/discuz/discuz_application.php(system_error)
    • [Line: 0023]source/function/function_core.php(discuz_error::system_error)
    • [Line: 0024]source/class/discuz/discuz_error.php(discuz_error::debug_backtrace)

    Discuz官方给出的解决方法:

    程序目录下载修改discuz_application.php代码。位置:\source\class\discuz的discuz_application.php
    查找

    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;
            }
    

    替换为:

     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;
            }
    

    替换后,discuz后台更新缓存,看看能解决问题么。