php 限制user-agent指定请求

Hello 普通用户

发布于 2025-08-19

45 浏览

由于客户的服务器使用了cdn,被别人恶意刷流量,
限制下,但很容易破解,改个参数就要要对应的修改
```
 //判断user-agent是Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0前缀,并且referer不存在或者为空则停止
 $user_agent = $_SERVER['HTTP_USER_AGENT'];
 if (strpos($user_agent, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0') === 0) {
     if (!isset($_SERVER['HTTP_REFERER']) || empty($_SERVER['HTTP_REFERER'])) {
         exit;
     }
 }
```

由于客户资金有限,暂时先这样吧

附录:
请求日志
```

112.48.116.185 - - [19/Aug/2025:11:40:46 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.17 Safari/537.36" "183.20.56.148"
112.48.116.185 - - [19/Aug/2025:11:40:47 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.67 Safari/537.36" "116.26.82.194"
112.48.116.185 - - [19/Aug/2025:11:40:47 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.91 Safari/537.36" "113.75.50.152"
112.48.116.185 - - [19/Aug/2025:11:40:48 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.03 Safari/537.36" "119.125.168.17"
112.48.116.185 - - [19/Aug/2025:11:40:48 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.63 Safari/537.36" "183.2.61.170"
112.48.116.185 - - [19/Aug/2025:11:40:51 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.92 Safari/537.36" "116.16.218.158"
112.48.116.185 - - [19/Aug/2025:11:40:52 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.13 Safari/537.36" "113.101.181.192"
112.48.116.185 - - [19/Aug/2025:11:40:52 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.97 Safari/537.36" "183.36.140.66"
112.48.116.185 - - [19/Aug/2025:11:40:53 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.23 Safari/537.36" "116.16.16.169"
112.48.116.185 - - [19/Aug/2025:11:40:54 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.77 Safari/537.36" "116.28.217.100"
112.48.116.185 - - [19/Aug/2025:11:40:55 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.39 Safari/537.36" "113.95.203.92"
112.48.116.185 - - [19/Aug/2025:11:41:01 +0800] "GET / HTTP/1.1" 200 7356 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.27 Safari/537.36" "183.21.245.234"
```

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php 限制user-agent指定请求

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