php 请求拦截

<?php

class RequestInterceptor
{
    public function preFilter($request)
    {
        // 前置过滤器逻辑
        echo "Pre-filtering request...\n";
        // 例如：身份验证
        if (!$this->authenticate($request)) {
            throw new Exception("Authentication failed");
        }
    }

    public function postFilter($response)
    {
        // 后置过滤器逻辑
        echo "Post-filtering response...\n";
        // 例如：日志记录
        $this->logRequest($response);
        return $response;
    }

    private function authenticate($request)
    {
        // 身份验证逻辑
        // 例如：检查会话中的用户信息
        return isset($_SESSION['user']);
    }

    private function logRequest($response)
    {
        // 日志记录逻辑
        // 例如：将请求和响应信息写入日志文件
        file_put_contents('access.log', date('Y-m-d H:i:s') . ' - ' . print_r($response, true) . "\n");
    }
}

// 示例请求处理逻辑
function handleRequest($request)
{
    echo "Handling request...\n";
    return "Response data";
}

// 模拟请求
$request = $_SERVER['REQUEST_URI'];

try {
    $interceptor = new RequestInterceptor();
    $interceptor->preFilter($request);
    $response = handleRequest($request);
    $response = $interceptor->postFilter($response);
    echo $response;
} catch (Exception $e) {
    echo $e->getMessage();
}