故障描述:
( w% Z* U1 S+ z% C m: A% K9 T退出登录时出现”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。
D6 o! b/ e& i解决方法:
! G+ [8 _( @# W- C* `
打开 sourceclassdiscuzdiscuz_application.php 文件
( Z% ?8 R5 l, {4 K+ b: o找到
6 e+ b. B+ |6 j4 g# s f- A8 Hprivate function _xss_check() {
0 h( Q7 ?8 ~/ R7 M% p+ L8 C
3 y0 m6 r, c- ^- K& Y static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
! `( P% o2 E1 p
3 g9 k% A, j/ o, U' U" p9 i( G if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
3 S1 O4 d: y* P) B system_error('request_tainting');
% Y3 G j( o9 @* g. j
}
. Z5 g+ R' u) Y8 x( }) z
# d# O1 c: t2 z7 r$ @, g { if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
# S+ b2 S$ [ L7 N" p- q $temp = $_SERVER['REQUEST_URI'];
1 i- N* q* _- b( L. q( d } elseif(empty ($_GET['formhash'])) {
) Z, O. j6 z* h/ s. p $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
7 [% h* m* K o2 f$ B9 O
} else {
K# l$ C8 N' @; x# u! N $temp = '';
: h4 @, v; o1 b' k# _: K1 d' P }
' Y: K% k9 a9 [9 F9 a2 V
1 f S# y1 F- C1 I if(!empty($temp)) {
% U" D, r& A2 u4 ?* g1 f/ p# x $temp = strtoupper(urldecode(urldecode($temp)));
$ {+ r" ]' t+ W | foreach ($check as $str) {
& o q4 f$ q! q, a+ J. r5 Y
if(strpos($temp, $str) !== false) {
6 k+ K8 N( k' t system_error('request_tainting');
, C: N/ ^" T8 Q8 h m6 ], z5 } }
' z- t3 \9 ^3 t/ R; q2 ^" G; ? }
: ^/ t0 k1 Z! ?( i0 \9 k( l* {( a }
" g& ^' o% U/ p* y% y" y1 o' P3 o% A) d5 u
return true;
! ^6 {7 M: ?. |1 Y( I3 o
}
' t' m$ Q0 j, F! D4 @修改为
; X5 m& N6 u; ]7 s* N# }private function _xss_check() {
l5 L' \; g0 ] $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
$ T8 E- f- Y" \! |3 J, B% J; t$ L4 }( j4 a if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
/ l6 S8 g! ?+ z4 i a/ N( S
system_error('request_tainting');
( {4 A/ z+ i# I1 X' G3 x. x* k; s
}
* U v" y; F+ B, J- E5 l
return true;
" r& ]- p' M7 K% ]) i( `1 j4 R( N}
* F" m) A G. _