傅令江的光影色彩世界
WordPress – 5秒盾防CC（PHP通用代码）
2022-11-8 傅令江

简介

这是个类似Cloudflare的防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，面对数以万计的肉鸡，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，下面分享给需要的同学。

使用教程新建文件

首先建个PHP文件cc.php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>In inspection...</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>");}}







	WordPress 上传到主题/template/cc.php ;





	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'; ?>










WordPress调用，主题/header.php第一行添加代码：




<?php get_template_part( 'template/cc' ); ?>



	建议




	可以把代码调用至404错误页，对于单IP刷新CC不存在页面有很好的防御效果！




	首次访问网站检测浏览器cookie通过才能正常的访问你的网站，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。平时没攻击的时候建议不要开启，影响网站体验，配合《Nginx lua waf 简单防御CC攻击》效果更佳。




	补充




	使用方法




	2019/07/02 新增脚本运用，根据系统负载来开启/关闭5秒盾，新建check_5.sh：



#!/bin/bash
# author: yunloc
# website: https://yunloc.com
 
if [ ! -f "status.txt" ];then
echo "" > status.txt
else
status=$(cat status.txt)
fi
now=$(date +%s)
time=$(date +%s -r status.txt)
load=$(cat /proc/loadavg | colrm 5)
echo "当前负载:$load"
newtime=`expr $now - $time`
if [[ $load <1.2 ]] && [[ $status -eq 1 ]] && [[ $newtime >600 ]]  
then
cResult=$(/bin/cp /home/wwwroot/yunloc.com/wp-content/themes/begin/header_5_on.php /home/wwwroot/yunloc.com/wp-content/themes/begin/header.php)
echo $cResult
echo "负载低于 1.2，当前已开盾超过 10 分钟($newtime 秒)，尝试关盾"
echo 0 > status.txt
elif [[ $load <1.2 ]]
then
echo "负载低于 1.2，不做任何改变,$newtime 秒"
exit
else
cResult=$(/bin/cp /home/wwwroot/yunloc.com/wp-content/themes/begin/header_5_off.php /home/wwwroot/yunloc.com/wp-content/themes/begin/header.php)
echo $cResult
echo "负载高于 1.2，开启防御规则"
echo 1 > status.txt
fi











	设置定时任务，每1分钟检查一次:





	

*/1 * * * * /root/check_5.sh









	

		

			

				新建两个文件：
			

			

				/home/wwwroot/yunloc.com/wp-content/themes/begin/pheader_5_off.php
			

			

				
				

					（首行加入WordPress调用代码）开启防御后把文件写入header.php
				

				

					/home/wwwroot/yunloc.com/wp-content/themes/begin/header_5_on.php
				

				

					

						原理
					

					

						当系统负载达到1.2后自动开启，小于1.2后600秒关闭。
					

					

						关于负载一般可以简单的设置为你的核心数*1.2 比如你CPU是双核的,可以设置为2.4。
					

				


			

			

				


				

					

						

							

						

					

				


			

			

				


			

		

	





	

		

			

			

		

	









	



        	
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