[PHP]WordPress防止权重输出的实现

 
<?php
/*
Template Name: MyRedirect
*/
?>
 
<?php
//获取POST 提交信息
$url_target  = $_REQUEST["url"];
$url_referer = $_SERVER["HTTP_REFERER"];
$url_to      = $url_target;
//URL是否为空的判断
$url_empty = false;
 
 
if (empty($url_to)){$url_empty = true;}
else
{
//判断网站链接是否正确
	if (!preg_match("#^(http|news|https|ftp|ed2k|rtsp|mms)://#", $url_to)){$result = '网站地址错误';$url_to = '';}
		$diskey = array("\\",' ',"'",'"','*',',','<','>',"\r","\t","\n",'(',')','+',';');
		foreach($diskey as $value)
		{
			if (strpos($url_to,$value) !== false){$result = '网站地址错误';$url_to = '';}
		}
}
//输出结果
function fir_echo_results($is_empty = false)
{
	$url_target  = $_REQUEST["url"];
	$url_referer = $_SERVER["HTTP_REFERER"];
	$url_to      = $url_target;
	//有个比较简单的加密验证,混合验证,使用公钥(网站地址)和私钥(下面设置的)
	//进行混合运算。我给的例子只是字串链接后MD5一下
	$url_fix     = 'fix';
	echo '<div id="redirect-info"><p>';
 
	if ($is_empty == true)
	{
		echo '链接地址为空,点此返回<a href="http://promiseforever.com">主页</a>。<br />';
	}
	else
	{
		echo '原始目标：'.$url_target.'<br />';
		echo '来源地址：'.$url_referer.'<br />';
		echo '目标地址：'.urlencode($url_to).'<br />';
		echo '网址指纹：'.md5($url_target).'<br />';
 
	//测试模式,提交debug,返回钥匙
	$url_debug  = $_REQUEST["debug"];
	if ('debug'==$url_debug){echo '安全判定：'.md5(($url_target.$url_fix)).'<br />';}
 
		//输出链接
		echo '点击这里<a target="_blank" rel="nofollow" href="'.$url_target.'" title="继续访问">继续访问</a><br />';
		echo '点击这里<a href="">返回来源</a><br />';
	}
 
	echo '</p></div>';
}
 
?>
 
<?php get_header(); ?>
	<div id="wrap">
	<!-- Main Content-->
		<img src="<?php bloginfo('stylesheet_directory');?>/images/content-top.gif" alt="content top" class="content-wrap" />
		<div id="content">
			<!-- Start Main Window -->
			<div id="main">
			<?php the_post(); ?>
 
				<div class="new_post entry clearfix">
 
					<h1 id="post-title"><a title="网站重定向" href="http://promiseforever.com/redirect"><?php the_title(); ?></a></h1>
						<div class="postcontent">
 
<div class="redirect-item-wrap">
<span class="redirect-item-top"></span>
<div class="redirect-item-inside">
<?
	$url_key  = $_REQUEST["key"];
	//如果要修改私钥，记得修改2处哦~
	$url_fix     = 'fix';
	$url_cer  = md5(($url_to.$url_fix));
 
	if ($url_empty == true)
	{
		$url_to ='';
		echo '<a href="'.$url_to.'" title="链接地址为空。">';
		echo '<img class="archive-item-cap" src="http://cache.promiseforever.com/wp/images/pages/redirect/empty.gif" alt="链接地址为空"/></a>';
	}
	else
	{
		if ($url_key == $url_cer)
		{
			echo '<a href="'.$url_to.'" title="点击图片继续访问。">';
			echo '<img class="archive-item-cap" src="http://cache.promiseforever.com/wp/images/pages/redirect/pass.gif"/></a>';
		}
		else
		{
			echo '<a href="#" title="该网址不被信任，继续访问？">';
			echo '<img class="archive-item-cap" src="http://cache.promiseforever.com/wp/images/pages/redirect/tips.gif"/></a>';
		}
	}
?>
</div>
<span class="redirect-item-btm"></span>
</div>
 
<?php
 
	fir_echo_results($url_empty);
 
?>
 
							<div class="clear"></div>
						</div> <!-- end .post -->
				</div>
 
			</div>
			<!-- End Main -->
 
	<?php get_sidebar(); ?>
	<?php get_footer(); ?>