wordpress7b2主题添加外链跳转安全检测

本站展示一个，原作品在这里，点击跳转，并查看本站使用案例

https://www.qitabbs.com/15286.html

教程，在网站根目录新建一个“go.php”

代码复制进去

<?php
/* *
*/
if (
 
strlen($_SERVER['REQUEST_URI']) > 384 ||
strpos($_SERVER['REQUEST_URI'], "eval(") ||
strpos($_SERVER['REQUEST_URI'], "base64")
) {
@header("HTTP/1.1 414 Request-URI Too Long");
@header("Status: 414 Request-URI Too Long");
@header("Connection: Close");
@exit;
}
//通过QUERY_STRING取得完整的传入数据，然后取得url=之后的所有值，兼容性更好
 
 
@session_start();
$t_url = !empty($_SESSION['GOLINK']) ? $_SESSION['GOLINK'] : preg_replace('/^url=(.*)$/i', '$1', $_SERVER["QUERY_STRING"]);
//数据处理
if(!empty($t_url)) {
//判断取值是否加密
if ($t_url == base64_encode(base64_decode($t_url))) {
$t_url = base64_decode($t_url);
}
//对取值进行网址校验和判断
preg_match('/^(http|https|thunder|qqdl|ed2k|Flashget|qbrowser):\/\//i',$t_url,$matches);
if($matches){
$url=$t_url;
$title='页面加载中,请稍候...';
} else {
preg_match('/\./i',$t_url,$matche);
if($matche){
$url='http://'.$t_url;
$title='页面加载中,请稍候...';
} else {
$url = 'http://'.$_SERVER['HTTP_HOST'];
$title='参数错误，正在返回首页...';
}
}
} else {
$title = '参数缺失，正在返回首页...';
$url = 'http://'.$_SERVER['HTTP_HOST'];
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="robots" content="noindex, nofollow" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
<noscript><meta http-equiv="refresh" content="1;url='<?php echo $url;?>';"></noscript>
<script>
function link_jump()
{
//禁止其他网站使用我们的跳转页面
var MyHOST = new RegExp("<?php echo $_SERVER['HTTP_HOST']; ?>");
if (!MyHOST.test(document.referrer)) {
location.href="http://" + MyHOST;
}
location.href="<?php echo $url;?>";
}
//延时1S跳转，可自行修改延时时间
setTimeout(link_jump, 2250);
//延时50S关闭跳转页面，用于文件下载后不会关闭跳转页的问题
setTimeout(function(){window.opener=null;window.close();}, 50000);
</script>
<title><?php echo $title;?></title>
 
 
<style type="text/css">
.flex-container{width: 100%;height: 100%;position: relative;display: -webkit-box;display: -ms-flexbox;display: flex;-ms-flex-wrap: wrap;flex-wrap: wrap;-webkit-box-pack: center;-ms-flex-pack: center;justify-content: center;-webkit-box-align: center;-ms-flex-align: center;align-items: center;}body{background:#fff;/*背景*/background-image:url(https://api.66mz8.com/api/rand.acg.php?type=%E7%BE%8E%E5%A5%B3&format=jpg);background-repeat:no-repeat;background-position:center center;}.unit{text-align: center;}.unit p{margin-top: 120px;font-family: 'Lato', sans-serif;text-transform: uppercase;color: #6cc;}.heart{position: relative;font-size: 0;width: 138px;}[class*="heart-piece-"]{position: absolute;top: -5px;width: 10px;height: 10px;border-radius: 5px;}.heart-piece-4{-webkit-animation: piece-4 1.0s infinite;animation: piece-4 1.0s infinite;}.heart-piece-3,.heart-piece-5{-webkit-animation: piece-3 1.0s infinite;animation: piece-3 1.0s infinite;}.heart-piece-2,.heart-piece-6{-webkit-animation: piece-2 1.0s infinite;animation: piece-2 1.0s infinite;}.heart-piece-1,.heart-piece-7{-webkit-animation: piece-1 1.0s infinite;animation: piece-1 1.0s infinite;}.heart-piece-0,.heart-piece-8{-webkit-animation: piece-0 1.0s infinite;animation: piece-0 1.0s infinite;}.heart-piece-0{left: 0px;-webkit-animation-delay: 0s;animation-delay: 0s;background-color: #57f1f1;}.heart-piece-1{left: 16px;-webkit-animation-delay: 0.05s;animation-delay: 0.05s;background-color: #3ed6d6;}.heart-piece-2{left: 32px;-webkit-animation-delay: 0.1s;animation-delay: 0.1s;background-color: #42c3e0;}.heart-piece-3{left: 48px;-webkit-animation-delay: 0.15s;animation-delay: 0.15s;background-color: #07ead5;}.heart-piece-4{left: 64px;-webkit-animation-delay: 0.2s;animation-delay: 0.2s;background-color: #42c3e0;}.heart-piece-5{left: 80px;-webkit-animation-delay: 0.25s;animation-delay: 0.25s;background-color: #07ead5;}.heart-piece-6{left: 96px;-webkit-animation-delay: 0.3s;animation-delay: 0.3s;background-color: #42c3e0;}.heart-piece-7{left: 112px;-webkit-animation-delay: 0.35s;animation-delay: 0.35s;background-color: #3ed6d6;}.heart-piece-8{left: 128px;-webkit-animation-delay: 0.4s;animation-delay: 0.4s;background-color: #57f1f1;}@-webkit-keyframes piece-4{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 94px;top: -23px;@keyframes piece-4{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 94px;top: -23px;@-webkit-keyframes piece-3{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 90px;top: -31px;@keyframes piece-3{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 90px;top: -31px;@-webkit-keyframes piece-2{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 80px;top: -37px;@keyframes piece-2{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 80px;top: -37px;@-webkit-keyframes piece-1{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 60px;top: -31px;@keyframes piece-1{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 60px;top: -31px;@-webkit-keyframes piece-0{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 30px;top: -15px;@keyframes piece-0{0%, 10%, 90%, 100%{height: 10px;top: -5px;}45%, 55%{height: 30px;top: -15px;
</style>
</head>
<body>
<div class="flex-container">
<div class="unit">
<div class="heart">
<div class="heart-piece-0"></div>
<div class="heart-piece-1"></div>
<div class="heart-piece-2"></div>
<div class="heart-piece-3"></div>
<div class="heart-piece-4"></div>
<div class="heart-piece-5"></div>
<div class="heart-piece-6"></div>
<div class="heart-piece-7"></div>
<div class="heart-piece-8"></div>
</div>
<p style="font-weight:700;">正在检查链接安全....</p>
</div>
</div>
</body>
</html>

然后复制放进“functions.php”

//给外部链接加上go跳转
add_filter('the_content','the_content_nofollow',999);
function the_content_nofollow($content)
{
preg_match_all('/<a(.*?)href="(.*?)"(.*?)>/',$content,$matches);
if($matches){
foreach($matches[2] as $val){
if(strpos($val,'://')!==false && strpos($val,home_url())===false && !preg_match('/\.(jpg|jepg|png|ico|bmp|gif|tiff)/i',$val)){
$content=str_replace("href=\"$val\"", "href=\"".home_url()."/go.php?url=$val\" ",$content);
}
}
}
return $content;
}

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