【破解】图片防盗链破解 ASP源码奉上

这是一年前写的一篇关于图片防盗链的文章. 同时一直使此程序至今,感觉良好;

【破解】图片防盗链破解（如：在外部也能显示qq、163或百度空间图片）

ASP版源代码:

<%

Dim url, body, myCache

url = Request.QueryString(“url”)

Set myCache = new cache

myCache.name = “picindex”&url

If myCache.valid Then

body = myCache.value

Else

body = GetWebData(url)

myCache.add body,dateadd(“d”,1,now)

End If

If Err.Number = 0 Then

Response.CharSet = “UTF-8″

Response.ContentType = “application/octet-stream”

Response.BinaryWrite body

Response.Flush

Else

Wscript.Echo Err.Description

End if

‘取得数据

Public Function GetWebData(ByVal strUrl)

Dim curlpath

curlpath = Mid(strUrl,1,Instr(8,strUrl,”/”))

Dim Retrieval

Set Retrieval = Server.CreateObject(“Microsoft.XMLHTTP”)

With Retrieval

.Open “Get”, strUrl, False,”",”"

.setRequestHeader “Referer”, curlpath

.Send

GetWebData =.ResponseBody

End With

Set Retrieval = Nothing

End Function

‘cache类

class Cache

private obj ‘cache内容

private expireTime ‘过期时间

private expireTimeName ‘过期时间application名

private cacheName ‘cache内容application名

private path ‘url

private sub class_initialize()

path=request.servervariables(“url”)

path=left(path,instrRev(path,”/”))

end sub

private sub class_terminate()

end sub

public property get blEmpty

‘是否为空

if isempty(obj) then

blEmpty=true

else

blEmpty=false

end if

end property

public property get valid

‘是否可用(过期)

if isempty(obj) or not isDate(expireTime) then

valid=false

elseif CDate(expireTime)<now then

valid=false

else

valid=true

end if

end property

public property let name(str)

‘设置cache名

cacheName=str & path

obj=application(cacheName)

expireTimeName=str & “expires” & path

expireTime=application(expireTimeName)

end property

public property let expires(tm)

‘重设置过期时间

expireTime=tm

application.lock

application(expireTimeName)=expireTime

application.unlock

end property

public sub add(var,expire)

‘赋值

if isempty(var) or not isDate(expire) then

exit sub

end if

obj=var

expireTime=expire

application.lock

application(cacheName)=obj

application(expireTimeName)=expireTime

application.unlock

end sub

public property get value

‘取值

if isempty(obj) or not isDate(expireTime) then

value=null

elseif CDate(expireTime)<now then

value=null

else

value=obj

end if

end property

public sub makeEmpty()

‘释放application

application.lock

application(cacheName)=empty

application(expireTimeName)=empty

application.unlock

obj=empty

expireTime=empty

end sub

public function equal(var2)

‘比较

if typename(obj)<>typename(var2) then

equal=false

elseif typename(obj)=”Object” then

if obj is var2 then

equal=true

else

equal=false

end if

elseif typename(obj)=”Variant()” then

if join(obj,”^”)=join(var2,”^”) then

equal=true

else

equal=false

end if

else

if obj=var2 then

equal=true

else

equal=false

end if

end if

end function

end class

%>

php版源代码：

<?php

$p=$_GET['url'];

$pics=file($p);

for($i=0;$i< count($pics);$i++)

{

echo $pics[$i];

}

?>

原理我就不做说明了, 大家有兴趣可以研究研究!

链接: http://fcjblog.com/asp-photo-crack-00123