btss/php/public/index.php

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

// [ 应用入口文件 ]
namespace think;

empty($_SERVER["HTT_Via"]) or exit("Access denied");
//var_dump($_SERVER["HTT_Via"]);
$seconds = 100;//时间段[秒]

$refresh = 5;//刷新次数

$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) {
//跳转验证
        $url = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $msg = mb_convert_encoding("<title>安全检查</title><h3>检测到CC攻击，正在进行浏览器安全检查！</h3>", "UTF-8", "GBK");
        exit($msg . "<meta http-equiv='refresh' content='5;url={$url}'>");//5是定时跳转的时间，后期可以根据时间段调整跳转时间
    }
} else {
    $_SESSION['refresh_times'] = 0;
    $_SESSION['last_time'] = $cur_time;

}


require __DIR__ . '/../vendor/autoload.php';
define("app_paths", __DIR__ . "/../");
define('APP_PATHS', __DIR__ . '/../app/');
define('Pah', __DIR__ . "/");
// 执行HTTP应用并响应
$http = (new App())->http;

$response = $http->run();

$response->send();

$http->end($response);