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『程序设计』
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通用破解网上的图片防盗链源码
ASP的
PHP 代码:
<% '盗链判断 If Instr(Request.ServerVariables("http_referer"),"http://"&Request.ServerVariables("server_name")&"") = 0 Then Response.Write "非法链接" Response.End End If 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 %>
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另一个ASP的版本
PHP 代码:
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936" ENABLESESSIONSTATE="FALSE"%> <%Option Explicit%> <% '+---------------------------------------------------------+ '| Aocool Studio Photo / Gallery Magic Show | '| Copyright (c) 2005 - 2006 Aocool Studio Ltd. | '+---------------------------------------------------------+ Server.ScriptTimeout = 300 Response.Buffer = True
On Error Resume Next
Function IsNullOrEmpty(ByVal String) IsNullOrEmpty = IsNull(String) Or String = "" End Function
Function GetImage(ByVal URL) Dim oXmlHttp Set oXmlHttp = Server.CreateObject("Msxml2.XMLHTTP")
If Err.Number <> 0 Then Response.Write("XMLHTTP Object not installed on this server, please go to Microsoft website download and install it.") Response.End() End If
oXmlHttp.Open "GET", URL, False oXmlHttp.setRequestHeader "Referer", URL oXmlHttp.setRequestHeader "User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)" oXmlHttp.Send() If oXmlHttp.readyState <> 4 Then GetImage = "" Else GetImage = oXmlHttp.responseBody End If
Set oXmlHttp = Nothing End Function
Function GetContentType(ByVal FileName) Dim FileExtension, ContentType FileExtension = Mid(FileName, InStrRev(FileName, ".") + 1) Select Case FileExtension Case "jpe" ContentType = "image/jpeg" Case "jpg" ContentType = "image/jpeg" Case "jpeg" ContentType = "image/jpeg" Case "gif" ContentType = "image/gif" Case "bmp" ContentType = "image/bmp" Case "png" ContentType = "image/png" Case "pnz" ContentType = "image/png" Case Else ContentType = "text/html" End Select
GetContentType = ContentType End Function
Dim URL, Bin URL = Request.ServerVariables("QUERY_STRING") Bin = GetImage(URL)
If IsNullOrEmpty(URL) = False Then If Bin <> "" Then Response.ContentType = GetContentType(URL) Response.BinaryWrite Bin Response.Flush Else Response.ContentType = "text/html" Response.Write("Remote Server Error.") End If Else Response.ContentType = "text/html" Response.Status = "400 Bad Request" Response.Write("400 Bad Request") End If %>
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PHP的版本
PHP 代码:
<?php //远程调用163相册图片 //http://blog.cnstorm.com //Ian.Lee //2006-3-5 $p=$_GET["p"]; if(!preg_match("/http:\/\/img([0-9]+).photo.163.com\/([a-z0-9_-]+)\/([0-9]+)\/([0-9]+).(gif|jpg)/i",$p))exit();//这个正则你可以替换下 if (substr($p,-4)==".jpg") {header("Content-type: image/jpeg\n\n");} else {header("Content-type: image/gif\n\n");} @readfile($p); ?>
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jimyoummen |
2007-09-13 02:11 AM |
还行``
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所有时间均为北京时间。现在的时间是 01:16 PM。 |
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