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asp文件下载代码
时间:2022-07-02 23:14:06 编辑:袖梨 来源:一聚教程网
<%
Dim url,strUrl,strPath
Dim strInceptFile
strInceptFile = "swf,fla,jpg,jpeg,gif,png,bmp,tif,iff,mp3,wma,rm,wmv,mid,rmi,cda,avi,mpg,mpeg,ra,ram,wov,asf"
url = Replace(Replace(Replace(Request("url"), "'", ""), "%", ""), "", "/")
If Len(url) > 3 Then
If Left(url,1) = "/" Then
Response.Redirect url
End If
If InStr(url, "../") > 0 Then
Response.Redirect url
End If
strUrl = Left(url,10)
If InStr(strUrl, "://") > 0 Then
Response.Redirect url
End If
If InStr(url, "/") > 0 Then
url =Replace(url, "../", "")
If CheckFileExt(url) Then
strPath = Server.MapPath(".") & "" & url
strPath = Replace(strPath, "/", "")
Call downThisFile(strPath)
End If
Else
Response.Redirect url
End If
End If
Sub downThisFile(thePath)
Response.Clear
On Error Resume Next
Dim stream, fileName, fileContentType
fileName = split(thePath,"")(UBound(split(thePath,"")))
Set stream = Server.CreateObject("adodb.stream")
stream.Open
stream.Type = 1
stream.LoadFromFile(thePath)
Response.AddHeader "Content-Disposition", "attachment; filename=" & fileName
Response.AddHeader "Content-Length", stream.Size
Response.Charset = "UTF-8"
Response.ContentType = "application/octet-stream"
Response.BinaryWrite stream.Read
Response.Flush
stream.Close
Set stream = Nothing
End Sub
Function CheckFileExt(ByVal strFile)
Dim ArrInceptFile
Dim i, strFileExt
On Error Resume Next
If Trim(strFile) = "" Or IsEmpty(strFile) Then
CheckFileExt = False
Exit Function
End If
strFileExt = GetFileExtName(strFile)
strFileExt = LCase(strFileExt)
strInceptFile = LCase(strInceptFile)
If Len(strInceptFile) = 0 Then
CheckFileExt = True
Exit Function
End If
ArrInceptFile = Split(strInceptFile, ",")
For i = 0 To UBound(ArrInceptFile)
If Trim(strFileExt) = Trim(ArrInceptFile(i)) Then
CheckFileExt = True
Exit Function
Else
CheckFileExt = False
End If
Next
CheckFileExt = False
End Function
Function GetFileExtName(ByVal strFilePath)
Dim strExtName
strExtName = Mid(strFilePath, InStrRev(strFilePath, ".") + 1)
If InStr(strExtName, "?") > 0 Then
GetFileExtName = Left(strExtName, InStr(strExtName, "?") - 1)
Else
GetFileExtName = strExtName
End If
End Function
%>
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