PHP防CC攻击代码
- <?php
-
- //代理IP直接退出
-
- emptyempty($_SERVER['HTTP_VIA']) or exit('Access Denied');
-
- //防止快速刷新
-
- session_start();
-
- $seconds = '3'; //时间段[秒]
-
- $refresh = '5'; //刷新次数
-
- //设置监控变量
-
- $cur_time = time();
-
- if(isset($_SESSION['last_time'])){
-
- $_SESSION['refresh_times'] += 1;
-
- }else{
-
- $_SESSION['refresh_times'] = 1;
-
- $_SESSION['last_time'] = $cur_time;
-
- }
-
- //处理监控结果
-
- if($cur_time - $_SESSION['last_time'] < $seconds){
-
- if($_SESSION['refresh_times'] >= $refresh){
-
- //跳转至攻击者服务器地址
-
- header(sprintf('Location:%s', 'http://127.0.0.1'));
-
- exit('Access Denied');
-
- }
-
- }else{
-
- $_SESSION['refresh_times'] = 0;
-
- $_SESSION['last_time'] = $cur_time;
-
- }
-
- ?>
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