为网站添加一个简单的CC防御脚本

这是个防 cc 功能，利用的是五秒盾的原理，经过检测得到 cookie 的浏览器才能正常的访问你的网站了，当然了，面对大量的请求还是一样得死，这代码还是无能为力的，所以说做人就要低调，别到处装逼，到时候被打了惨的还是自己，搜索引擎蜘蛛已经过滤，不影响收录，还有未加上的可以自己补充。

首先建个 cc.php 文件代码如下：

 <?php
    define('SYSTEM_ROOT', dirname(preg_replace('@\\(.*\\(.*$@', '', preg_replace('@\\(.*\\(.*$@', '', __FILE__))) . '/');
    session_start();
    date_default_timezone_set('Asia/Shanghai');
    header('Content-Type: text/html; charset=UTF-8');
    function getspider($useragent=''){
        if(CC_Defender==2)return false;
        if(!$useragent){$useragent = $_SERVER['HTTP_USER_AGENT'];}
    $useragent=strtolower($useragent);
        if (strpos($useragent, 'baiduspider') !== false){return 'baiduspider';}
        if (strpos($useragent, 'googlebot') !== false){return 'googlebot';}
        if (strpos($useragent, 'soso') !== false){return 'soso';}
        if (strpos($useragent, 'bing') !== false){return 'bing';}
        if (strpos($useragent, 'yahoo') !== false){return 'yahoo';}
        if (strpos($useragent, 'sohu-search') !== false){return 'Sohubot';}
        if (strpos($useragent, 'sogou') !== false){return 'sogou';}
        if (strpos($useragent, 'youdaobot') !== false){return 'YoudaoBot';}
        if (strpos($useragent, 'yodaobot') !== false){return 'YodaoBot';}
        if (strpos($useragent, 'robozilla') !== false){return 'Robozilla';}
        if (strpos($useragent, 'msnbot') !== false){return 'msnbot';}
        if (strpos($useragent, 'lycos') !== false){return 'Lycos';}
        if (strpos($useragent, 'ia_archiver') !== false || strpos($useragent, 'iaarchiver') !== false){return 'alexa';}
        if (strpos($useragent, 'archive.org_bot') !== false){return 'Archive';}
        if (strpos($useragent, 'robozilla') !== false){return 'Robozilla';}
        if (strpos($useragent, 'sitebot') !== false){return 'SiteBot';}
        if (strpos($useragent, 'mj12bot') !== false){return 'MJ12bot';}
        if (strpos($useragent, 'gosospider') !== false){return 'gosospider';}
        if (strpos($useragent, 'gigabot') !== false){return 'Gigabot';}
        if (strpos($useragent, 'yrspider') !== false){return 'YRSpider';}
        if (strpos($useragent, 'gigabot') !== false){return 'Gigabot';}
        if (strpos($useragent, 'jikespider') !== false){return 'jikespider';}
        if (strpos($useragent, 'addsugarspiderbot') !== false){return 'AddSugarSpiderBot';/*非常少*/}
        if (strpos($useragent, 'testspider') !== false){return 'TestSpider';}
        if (strpos($useragent, 'etaospider') !== false){return 'EtaoSpider';}
        if (strpos($useragent, 'wangidspider') !== false){return 'WangIDSpider';}
        if (strpos($useragent, 'foxspider') !== false){return 'FoxSpider';}
        if (strpos($useragent, 'docomo') !== false){return 'DoCoMo';}
        if (strpos($useragent, 'yandexbot') !== false){return 'YandexBot';}
        if (strpos($useragent, 'ezooms') !== false){return 'Ezooms';/*个人*/}
        if (strpos($useragent, 'sinaweibobot') !== false){return 'SinaWeiboBot';}
        if (strpos($useragent, 'catchbot') !== false){return 'CatchBot';}
        if (strpos($useragent, 'surveybot') !== false){return 'SurveyBot';}
        if (strpos($useragent, 'dotbot') !== false){return 'DotBot';}
        if (strpos($useragent, 'purebot') !== false){return 'Purebot';}
        if (strpos($useragent, 'ccbot') !== false){return 'CCBot';}
        if (strpos($useragent, 'mlbot') !== false){return 'MLBot';}
        if (strpos($useragent, 'adsbot-google') !== false){return 'AdsBot-Google';}
        if (strpos($useragent, 'ahrefsbot') !== false){return 'AhrefsBot';}
        if (strpos($useragent, 'spbot') !== false){return 'spbot';}
        if (strpos($useragent, 'augustbot') !== false){return 'AugustBot';}
        return false;
    }
     
    if($_GET['rand'] && $_SESSION['rand_session']!=$_GET['rand']){
        @header('Content-Type: text/html; charset=UTF-8');
    exit('<b>浏览器不支持 COOKIE 或者不正常访问！</b>');
    }
    if(!$_SESSION['rand_session'] && $nosecu!=true){
        if(!getspider()){
            $rand_session=md5(uniqid().rand(1,1000));
        $_SESSION['rand_session']=$rand_session;
            exit("<!DOCTYPE HTML>
            <html>
            <head>
            <meta charset=\"UTF-8\"/>
            <meta name=\"viewport\" content=\"width=device-width, initial-scale=1, maximum-scale=1\" />
     
            <title>安全检查中...</title>
         <script> var i = 5;
      var intervalid;
      intervalid = setInterval(\"fun()\", 1000);
    function fun() {
    if (i == 0) {
    window.location.href = \"?{$_SERVER['QUERY_STRING']}&rand={$rand_session}\";
    clearInterval(intervalid);
    }
    document.getElementById(\"mes\").innerHTML = i;
    i--;
    }
    </script>
    <style>
        html, body {width: 100%; height: 100%; margin: 0; padding: 0;}
        body {background-color: #ffffff; font-family: Helvetica, Arial, sans-serif; font-size: 100%;}
        h1 {font-size: 1.5em; color: #404040; text-align: center;}
        p {font-size: 1em; color: #404040; text-align: center; margin: 10px 0 0 0;}
        #spinner {margin: 0 auto 30px auto; display: block;}
        .attribution {margin-top: 20px;}
      </style>
      </head>
    <body>
      <table width=\"100%\" height=\"100%\" cellpadding=\"20\">
        <tr>
          <td align=\"center\" valign=\"middle\">
        <noscript><h2>请打开浏览器的 javascript，然后刷新浏览器</h2></noscript>
      <h1><span data-translate=\"checking_browser\">浏览器安全检查中...</span></h1>
        <p data-translate=\"process_is_automatic\"></p>
        <p data-translate=\"allow_5_secs\">还剩 <span id=\"mes\">5</span> 秒</p>
      </div>
    </div>
      </td>
        </tr>
    </table></body></html>");}}

代码传到网站目录

调用代码 PHP 通用调用，在头部或主要文件内文件加入：

<?php include 'cc.php'; ?>