dm-v2.com/ThinkPHP/Library/Behavior/AgentCheckBehavior.class.php

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Behavior;

/**
 * 行为扩展：代理检测
 */
class AgentCheckBehavior
{
    public function run(&$params)
    {
        // 代理访问检测
        $limitProxyVisit = C('LIMIT_PROXY_VISIT', null, true);
        if ($limitProxyVisit && ($_SERVER['HTTP_X_FORWARDED_FOR'] || $_SERVER['HTTP_VIA'] || $_SERVER['HTTP_PROXY_CONNECTION'] || $_SERVER['HTTP_USER_AGENT_VIA'])) {
            // 禁止代理访问
            exit('Access Denied');
        }
    }
}