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防盜鏈接ASP函數(shù)實(shí)現(xiàn)代碼

時間:2024-08-03 10:49:36 ASP 我要投稿
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防盜鏈接ASP函數(shù)實(shí)現(xiàn)代碼

  簡單介紹下功能吧:使用了ASP的一個對象ServerVariables(服務(wù)器環(huán)境變量),通過這個環(huán)境變量可以獲取到真正的下載地址再通過一些簡單的VBS內(nèi)置函數(shù)破壞其真正地址的完整性。達(dá)到欺騙下載軟件的功能,F(xiàn)附上源碼提供大家學(xué)習(xí)。

  復(fù)制代碼 代碼如下:

  <% FunctIon DownloadFIle(StrFIle)

  StrFIlename=StrFIle

  Response.Buffer=True

  Response.Clear

  Set S=Server.CreateObJect("ADODB.Stream")

  S.Open

  S.Type=1

  on Error Resume Next

  Set Fso=Server.CreateObJect("ScrIptIng.FIleSystemObJect")

  If Not Fso.FIleExists(StrFIleName) Then

  From_Url=Cstr(Request.ServerVarIables("HTTP_REFERER"))

  Serv_Url=Cstr(Request.ServerVarIables("SERVER_NAME"))

  If MId(From_Url,8,len(Serv_Url)) <> Serv_Url Then

  Response.WrIte "該文件不存在或者已經(jīng)刪除."

  Response.End

  End If

  Response.RedIrect Request.ServerVarIables("HTTP_REFERER")

  Response.End

  End If

  FileExt=MId(StrFIlename,InStrRev(StrFIleName, ".")+1)

  Select Case UCase(FIleExt)

  Case "ASP", "ASA", "ASPX", "ASAX", "MDB", "PHP", "JSP", "SHTML", "HTML", "HTM", "TV", "DATA"

  From_Url=Cstr(Request.ServerVarIables("HTTP_REFERER"))

  Serv_Url=Cstr(Request.ServerVarIables("SERVER_NAME"))

  If MId(From_Url,8,len(Serv_Url)) <> Serv_Url Then

  Response.WrIte "該文件不存在或者已經(jīng)刪除."

  Response.End

  End If

  Response.RedIrect Request.ServerVarIables("HTTP_REFERER")

  Response.End

  End Select

  Set F=Fso.GetFIle(StrFIlename)

  IntFIlelength=F.SIze

  s.LoadFromFIle(StrFIlename)

  If Err Then

  From_Url=Cstr(Request.ServerVarIables("HTTP_REFERER"))

  Serv_Url=Cstr(Request.ServerVarIables("SERVER_NAME"))

  If MId(From_Url,8,len(Serv_Url)) <> Serv_Url Then

  Response.WrIte "該文件數(shù)據(jù)不完整或許已損壞."

  Response.End

  End If

  Response.RedIrect Request.ServerVarIables("HTTP_REFERER")

  Response.End

  End If

  Set Upload=Server.CreateObJect("PersIts.Upload")

  If Upload Is Nothing Then

  Response.AddHeader "Content-DIsposItIon","attachment; FIlename="&F.Name

  Response.AddHeader "Content-Length",IntFilelength

  Response.CharSet="UTF-8"

  Response.ContentType="application/x-download"

  Response.BinaryWrite S.Read

  Response.Flush

  S.Close

  Set s=NothIng

  Else

  Upload.SendBinary StrFIlename,True,"application/x-download",False

  End If

  End FunctIon

  %>

  使用:<%call>。

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