Asp中隱藏下載地址

<%
Response.Buffer = true
Response.Clear
dim url
Dim fso,fl,flsize
dim Dname
Dim objStream,ContentType,flName,isre,url1
Dim strFileName

strFileName=replace(replace(Request("file"),"/",""),"/","")  '傳參

strFileName="/files/"&strFileName    ' 改成你你檔案的存放路徑

If strFileName<>"" Then
'******************************下載檔案存放的服務端目錄
url=Server.MapPath(strFileName)

else
    Response.Write("no found")
    Response.end 
End If
Set fso=Server.CreateObject("Scripting.FileSystemObject")
Set fl=fso.getfile(url)
flsize=fl.size
flName=fl.name

 

 

Set fl=Nothing
Set fso=Nothing
Set objStream = Server.CreateObject("ADODB.Stream")
objStream.Open
objStream.Type = 1
objStream.LoadFromFile url
Select Case lcase(Right(flName, 4))
Case ".asf"
ContentType = "video/x-ms-asf"
Case ".avi"
ContentType = "video/avi"
Case ".doc"
ContentType = "application/msword"
Case ".zip"
ContentType = "application/zip"
Case ".xls"
ContentType = "application/vnd.ms-excel"
Case ".gif"
ContentType = "image/gif"
Case ".jpg", "jpeg"
ContentType = "image/jpeg"
Case ".bmp"
ContentType = "image/bmp"
Case ".ppt"
ContentType = "application/vnd.ms-powerpoint"
Case ".mdb"
ContentType = "application/x-msaccess"
Case ".wav"
ContentType = "audio/wav"
Case ".mp3"
ContentType = "audio/mpeg3"
Case ".mpg", "mpeg"
ContentType = "video/mpeg"
Case ".rtf"
ContentType = "application/rtf"
Case ".htm", "html" ,"htm(1)"
ContentType = "text/html"
Case ".txt"
ContentType = "text/plain"
Case Else
ContentType = "application/octet-stream"
End Select

'  我是用UPload組件上傳的,如果重名會產生"(數字)" 尾碼,
'  有些主機會阻止下載這類檔案,所以這裡加一個檢查,將Upload組件自動產生的尾碼
If InStr(lcase(Right(flName, 1)),")") Then
 flName=mid(flName,1,Len(flName)-3)
End If
Response.AddHeader "Content-Disposition", "attachment; filename=" & flName
Response.AddHeader "Content-Length", flsize
Response.Charset = "UTF-8"
Response.ContentType = ContentType
Response.BinaryWrite objStream.Read
Response.Flush
response.Clear()
objStream.Close
Set objStream = Nothing
%>