砍敺 IT_man 2015-7-19 20:51 蝺刻摩 . D, V e1 t, c
, |# l% O+ {+ S( p: Q$ w5 u
' W; w4 j% E ?2 y7 I/ I
* i( y+ P' A) a: e" U% L
- k( H. |2 Z6 [3 U/ D
http://www.alexa.com/ 園Y憒銝憿
; O3 z- E# @0 C) J( x* S, K, `3 Q/ M1 E2 @" F
6 q/ H; B% u! o$ W2 r" j9 m
閫瘙箸寞憒銝:1 j" _- J8 [- X! @) Z5 z
source\class\discuzdiscuz_application.php曉
6 r9 {# C1 T Z' x3 e- private function _xss_check() {
$ l A# Z8 M3 D& y# o6 E - * h2 G/ E3 r# j/ H( ]
- static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');! z1 N, U1 `: g5 W
- 1 B9 Q9 _' v( ^9 O% T
- if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {% C) W$ E! D$ n: n2 J/ Z
- system_error('request_tainting');# z" R D6 w" g7 B$ k) Q
- }' S4 b4 f- s* |5 A! `# r
- % W! C1 f% p p4 _( Z1 E$ S7 r9 A$ I
- if($_SERVER['REQUEST_METHOD'] == 'GET' ) {* Z2 e* M6 W J' f% L" c, L2 u
- $temp = $_SERVER['REQUEST_URI'];
! F! b6 N& Y' S: g - } elseif(empty ($_GET['formhash'])) {
3 K& U% M. d( E# y" p: S' Z - $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
' c% h1 }* b2 X2 D& z4 b1 { - } else {
7 C" X5 {+ S4 d6 [- B/ ` - $temp = '';
% q% X, \7 s. o/ F& ]9 I0 E" z - }
" i- Y, b2 h4 V- m4 h+ x" Z - / J6 J8 X6 ] }, k! O2 Z
- if(!empty($temp)) {
8 ]8 S( j- x6 t5 ]2 Y - $temp = strtoupper(urldecode(urldecode($temp)));
" r9 K7 S3 s8 k2 @4 K, K5 h - foreach ($check as $str) {
+ @7 a. o, ?0 ~* V6 ]5 s - if(strpos($temp, $str) !== false) {
" A: L; d+ h7 o/ i - system_error('request_tainting');
5 w x9 B& p5 x, P# V/ A1 r - }9 \6 x7 D& c* E
- }
/ t* ]9 r+ p% s5 S - }
5 K- Q( U: l* T7 l3 d
/ I( g2 i) r1 O: d" k- m0 q- return true;
銴鋆賭誨蝣 湔挾銴鋆賣:
, f1 P0 c( f- j$ a7 l- private function _xss_check() {
: t. J0 [: a% t) l( M5 e% }! B - $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));% r8 c8 A# [2 k1 t% Q# [3 e9 J2 g
- if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
" k# F) e4 G2 t# k - system_error('request_tainting');; r$ A% u& H; b" r2 x9 t; B) y) `
- }1 K# Z: a' ~) I( x6 T0 q
- return true;. K) S" h1 M/ Q
- }
銴鋆賭誨蝣 9 Q) }1 {0 L2 J) d. L- S5 V$ }! a
/ Z/ a8 Z7 ]5 \% i5 }( v( I0 `% p4 ^ F+ b
1 ~, G+ z$ A! p m |
|