easyswoole / atomic-limit
An efficient swoole framework
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Requires
- php: >=7.1.0
- easyswoole/component: ^2.0
Requires (Dev)
This package is auto-updated.
Last update: 2024-10-15 22:08:14 UTC
README
Easyswoole提供了一个基于Atomic计数器的限流器。
原理
通过限制某一个时间周期内某个token的总请求数,从而实现基础限流。
安装
composer require easyswoole/atomic-limit
示例代码
以经典的暴力CC攻击防护为例子。我们可以限制一个ip-url的qps访问。
use EasySwoole\AtomicLimit\AtomicLimit; $limit = new AtomicLimit(); $http = new swoole_http_server("127.0.0.1", 9501); /** 为方便测试,限制设置为3 */ $limit->setLimitQps(3); $limit->attachServer($http); $http->on("request", function ($request, $response)use($http,$limit) { $ip = $http->getClientInfo($request->fd)['remote_ip']; $requestUri = $request->server['request_uri']; $token = $ip.$requestUri; /** access函数允许单独对某个token指定qps */ if($limit->access($token)){ $response->write('request accept'); }else{ $response->write('request refuse'); } $response->end(); }); $http->start();