Discuz! System Error 您当前的访问请求当中含有非法字符,已经被系统拒绝错误解决
Discuz! X3.1 正式版含目前最新版[2014-03-01]在用户退出时偶尔会提示如下错误,特别是数据整合后的站点:
错误代码:
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: 0017]source\function\function_core.php(discuz_error::system_error)
[Line: 0024]source\class\discuz\discuz_error.php(discuz_error::debug_backtrace)
临时解决方法:
修改 \source\class\discuz下的discuz_application.php文件大约第350行的private function _xss_check()方法:
- 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 = $_SERVER['REQUEST_URI'];
- } elseif(emptyempty ($_GET['formhash'])) {
- $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
- } else {
- $temp = '';
- }
- if(!emptyempty($temp)) {
- $temp = strtoupper(urldecode(urldecode($temp)));
- foreach ($check as $str) {
- if(strpos($temp, $str) !== false) {
- system_error('request_tainting');
- }
- }
- }
- return true;
- }
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;
- }
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