How to prevent hotlinking in dedecms software download channel-DEDECMS-php.cn

How to prevent hotlinking in dedecms software download channel

藏色散人

Release： 2019-12-24 09:47:30

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dedecms How to prevent hotlinking in software download channels?

Due to website revision, many previous websites were linked to our internal pages. This results in a poor user experience and prevents some websites from stealing our resources.

Recommended study: 梦Weavercms

dedeThe shortcomings of making a software site

is that others repost your downloads When reposting http://www.xxx.com/plus/download.php...

, you can download it by directly opening the download address list page, which costs a lot of money Resources but cannot bring users.

After research, I finally solved the problem of anti-leeching for software channel downloads. The code is distributed and shared with everyone. I hope it can be used.

The modified function is

If the software information The page address is: https://www.xxx.net/soft/1.htm

The download address link is: https://www.xxx.net/plus/download.php?.... .....

Determine the origin,

If it is not https://www.xxx.net/soft/1.htm,

Jump directly to https ://www.xxx.net/soft/1.htm

If the source is https://www.xxx.net/soft/1.htm, the download address will be displayed

Description Next: The code below is directly copied from my own site. I have enabled Thunder download for the whole site. When I open it, Thunder download will be automatically used. You can also make small modifications to prevent the use of Thunder download

No It is easy to modify using Xunlei: delete the Xunlei related code and just quote $link

The file that needs to be modified is /plus/download.php

Demo:

https://www.xxx.net/do/plus/download.php?open=0&aid=20975&cid=3

Must start from https://www.xxx.net/codes/20975.html It is normal to enter the page.

The code is as follows:

<script src="http://pstatic.xunlei.com/js/webThunderDetect.js"></script> 
<?php require("encode.inc"); ?> 
<?php 
require_once(dirname(__FILE__)."/../include/config_base.php"); 
require_once(dirname(__FILE__)."/../include/inc_channel_unit.php"); 
if(!isset($open)) $open = 0; 
if(!isset($aid)) $aid = ""; 
$dsql = new DedeSql(false); 
//读取文档基本信息 
$arctitle = ""; 
$arcurl = ""; 
$gquery = "Select 
dede_archives.title,dede_archives.senddate,dede_archives.arcrank, 
dede_archives.ismake,dede_archives.typeid,dede_archives.channel,dede_archives.money, 
dede_arctype.typedir,dede_arctype.namerule 
From dede_archives 
left join dede_arctype on dede_arctype.ID=dede_archives.typeid 
where dede_archives.ID=&#39;$aid&#39; 
"; 
$arcRow = $dsql->GetOne($gquery); 
if(is_array($arcRow)){ 
$arctitle = $arcRow[&#39;title&#39;]; 
$arcurl = GetFileUrl($aid,$arcRow[&#39;typeid&#39;],$arcRow[&#39;senddate&#39;],$arctitle,$arcRow[&#39;ismake&#39;],$arcRow[&#39;arcrank&#39;],$arcRow[&#39;namerule&#39;],$arcRow[&#39;typedir&#39;],$arcRow[&#39;money&#39;]); 
}else{ 
$dsql->Close(); 
ShowMsg("无法获取未知文档的信息!","-1"); 
exit(); 
} 
$cu = new ChannelUnit($arcRow[&#39;channel&#39;],$aid); 
if(!is_array($cu->ChannelFields)) { 
$cu->Close(); 
$dsql->Close(); 
ShowMsg("获取文档链接信息失败！","-1"); 
exit(); 
} 
$vname = ""; 
foreach($cu->ChannelFields as $k=>$v){ 
if($v[&#39;type&#39;]=="softlinks"){ $vname=$k; break; } 
} 
if(!is_array($cu->ChannelFields)) { 
$cu->Close(); 
$dsql->Close(); 
ShowMsg("获取文档链接信息失败！","-1"); 
exit(); 
} 
if(!strstr($_SERVER[&#39;HTTP_REFERER&#39;],$arcurl)) 
{ 
echo "<script language=&#39;javascript&#39;>location=\"$arcurl\";</script>"; 
} 
$row = $dsql->GetOne("Select $vname From ".$cu->ChannelInfos[&#39;addtable&#39;]." where aid=&#39;$aid&#39;"); 
$downlinks = $cu->GetAddLinks($row[$vname]); 
$dsql->Close(); 
$cu->Close(); 
$link = base64_decode($link); 
$thunderUrl = ThunderEncode($link); 
echo "<script>OnDownloadClick(&#39;".$thunderUrl."&#39;,&#39;&#39;,location.href,&#39;07231&#39;,2,&#39;&#39;)</script>"; 
?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title><?php echo $arctitle?>下载地址列表</title> 
<link href="../templets/style/dede.css" rel="stylesheet" type="text/css" /> 
<link href="../templets/style/spage.css" rel="stylesheet" type="text/css" /> 
</head> 
</head> 
<body> 
<center> 
<div> 
<span>下载</span> 
<span><a href="/" _fcksavedurl="/">返回主页</a></span></div> 
<div> 
<div> 
<div>软件名称:<a href=&#39;<?php echo $arcurl?>&#39; _fcksavedurl=&#39;<?php echo $arcurl?>&#39; style=&#39;font-size:11pt&#39;><?php echo $arctitle?></a></div> 
</div> 
<div class=""> 
<div> 
<div>

Copy after login

Download address list:

<div><a href=&#39;<?php echo $thunderUrl?>&#39; _fcksavedurl=&#39;<?php echo $thunderUrl?>&#39; style=&#39;font-size:11pt&#39;>点这里右键使用迅雷下载-><?php echo $arctitle?></a></div> 
</div> 
</div> 
</div> 
</div> 
</center> 
</body> 
</html>

Copy after login

Supplement:

1. The anti-leeching function of this software channel must be in the software Set the

link display method in the channel settings: Request to enter the download address list page

2. If the example situation is different from your website, you can also manually modify your /plus/download .php

The modification method is as follows:

Find:

$row = $dsql->GetOne("Select $vname From ".$cu->ChannelInfos[&#39;addtable&#39;]." where aid=&#39;$aid&#39;");

Copy after login

Add

if(!strstr($_SERVER[&#39;HTTP_REFERER&#39;],$arcurl)) 
{ 
echo "<script language=&#39;javascript&#39;>location=\"$arcurl\";</script>"; 
}

Copy after login

above it and that’s it.

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