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41 lines
1.5 KiB
PHP
41 lines
1.5 KiB
PHP
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<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace Behavior;
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/**
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* 机器人检测
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* @author liu21st <liu21st@gmail.com>
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*/
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class RobotCheckBehavior {
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public function run(&$params) {
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// 机器人访问检测
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if(C('LIMIT_ROBOT_VISIT',null,true) && self::isRobot()) {
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// 禁止机器人访问
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exit('Access Denied');
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}
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}
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static private function isRobot() {
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static $_robot = null;
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if(is_null($_robot)) {
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$spiders = 'Bot|Crawl|Spider|slurp|sohu-search|lycos|robozilla';
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$browsers = 'MSIE|Netscape|Opera|Konqueror|Mozilla';
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if(preg_match("/($browsers)/", $_SERVER['HTTP_USER_AGENT'])) {
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$_robot = false ;
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} elseif(preg_match("/($spiders)/", $_SERVER['HTTP_USER_AGENT'])) {
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$_robot = true;
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} else {
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$_robot = false;
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}
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}
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return $_robot;
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}
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}
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