39 lines
1.9 KiB
PHP
39 lines
1.9 KiB
PHP
<?php
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//php防注入和XSS攻击通用过滤.
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$_GET && SafeFilter($_GET);
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$_POST && SafeFilter($_POST);
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$_COOKIE && SafeFilter($_COOKIE);
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function SafeFilter (&$arr){
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$ra=Array('/([\x00-\x08,\x0b-\x0c,\x0e-\x19])/','/script/','/javascript/','/vbscript/','/expression/','/applet/','/meta/','/xml/','/blink/','/link/','/style/','/embed/','/object/','/frame/','/layer/','/title/','/bgsound/','/base/','/onload/','/onunload/','/onchange/','/onsubmit/','/onreset/','/onselect/','/onblur/','/onfocus/','/onabort/','/onkeydown/','/onkeypress/','/onkeyup/','/onclick/','/ondblclick/','/onmousedown/','/onmousemove/','/onmouseout/','/onmouseover/','/onmouseup/','/onunload/');
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if (is_array($arr)){
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foreach ($arr as $key => $value){
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if(!is_array($value)){
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if (!get_magic_quotes_gpc()){ //不对magic_quotes_gpc转义过的字符使用addslashes(),避免双重转义。
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$value=addslashes($value); //给单引号（'）、双引号（"）、反斜线（\）与 NUL（NULL 字符）加上反斜线转义
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}
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$value=preg_replace($ra,'',$value); //删除非打印字符，粗暴式过滤xss可疑字符串
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$arr[$key] = htmlentities(strip_tags($value)); //去除 HTML 和 PHP 标记并转换为 HTML 实体
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}else{
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SafeFilter($arr[$key]);
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}
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}
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}
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}
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require 'include/global.php';
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$act = isset($_GET['act']) ? purge($_GET['act'],true,false) : null;
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$appid = isset($_GET['app']) ? intval($_GET['app']) : 0;//appid
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$sign = isset($_POST['sign']) ? (purge($_POST['sign'])) : (isset($_GET['sign']) ? purge($_GET['sign']) : '');//数据签名
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$data = isset($_POST['data']) ? (purge($_POST['data'])) : (isset($_GET['data']) ? purge($_GET['data']) : '');//加密数据
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if($act){
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if(file_exists(FCPATH.API_EXTEND_MULU.$act.'.php')){
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if(!empty($appid)){require FCPATH.API_EXTEND_MULU.'app.php';}
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require FCPATH.API_EXTEND_MULU.$act.'.php';
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}else{
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out(400,$act);
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}
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}
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?>
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