upload.asp

安全性好,适用于展示和进行资源下载的个人和大型网站使用!

<%
'FileName    文件名       字符串    "doc.txt"
'FileSize    文件大小     数值       1210
'FileType    文件类型     字符串    "text/plain"
'FileExt     文件扩展名   字符串    "txt"
'FilePath    文件原路径   字符串    "c:\myfile"
dim oUpFileStream
Class YCMS_upload
dim Form,File
Private Sub Class_Initialize 
   '定义变量
  dim RequestBinDate,sStart,bCrLf,sInfo,iInfoStart,iInfoEnd,tStream,iStart,oFileInfo
  dim iFileSize,sFilePath,sFileType,sFormvalue,sFileName
  dim iFindStart,iFindEnd
  dim iFormStart,iFormEnd,sFormName
   '代码开始
  set Form=Server.CreateObject("Scripting.Dictionary")
  set File=Server.CreateObject("Scripting.Dictionary")
  if Request.TotalBytes<1 then Exit Sub
  set tStream=Server.CreateObject("adodb.stream")
  set oUpFileStream=Server.CreateObject("adodb.stream")
  oUpFileStream.Type=1
  oUpFileStream.Mode=3
  oUpFileStream.Open 
  oUpFileStream.Write Request.BinaryRead(Request.TotalBytes)
  oUpFileStream.Position=0
  RequestBinDate=oUpFileStream.Read 
  iFormEnd=oUpFileStream.Size
  bCrLf=chrB(13) & chrB(10)
  '取得每个项目之间的分隔符
  sStart=MidB(RequestBinDate,1, InStrB(1,RequestBinDate,bCrLf)-1)
  iStart=LenB (sStart)
  iFormStart=iStart+2
  '分解项目
  Do
    iInfoEnd=InStrB(iFormStart,RequestBinDate,bCrLf & bCrLf)+3
    tStream.Type=1
    tStream.Mode=3
    tStream.Open
    oUpFileStream.Position=iFormStart
    oUpFileStream.CopyTo tStream,iInfoEnd-iFormStart
    tStream.Position=0
    tStream.Type=2
    tStream.Charset="gb2312"
    sInfo=tStream.ReadText      
    '取得表单项目名称
    iFormStart=InStrB(iInfoEnd,RequestBinDate,sStart)-1
    iFindStart=InStr(22,sInfo,"name=""",1)+6
    iFindEnd=InStr(iFindStart,sInfo,"""",1)
    sFormName=Mid (sinfo,iFindStart,iFindEnd-iFindStart)
    '如果是文件
    if InStr (45,sInfo,"filename=""",1) > 0 then
      set oFileInfo= new FileInfo
      '取得文件属性
      iFindStart=InStr(iFindEnd,sInfo,"filename=""",1)+10
      iFindEnd=InStr(iFindStart,sInfo,"""",1)
      sFileName=Mid (sinfo,iFindStart,iFindEnd-iFindStart)
      oFileInfo.FileName=GetFileName(sFileName)
      oFileInfo.FilePath=GetFilePath(sFileName)
      oFileInfo.FileExt=GetFileExt(sFileName)
      iFindStart=InStr(iFindEnd,sInfo,"Content-Type: ",1)+14
      iFindEnd=InStr(iFindStart,sInfo,vbCr)
      oFileInfo.FileType=Mid (sinfo,iFindStart,iFindEnd-iFindStart)
      oFileInfo.FileStart=iInfoEnd
      oFileInfo.FileSize=iFormStart -iInfoEnd -2
      oFileInfo.FormName=sFormName
      file.add sFormName,oFileInfo
    else
    '如果是表单项目
      tStream.Close
      tStream.Type=1
      tStream.Mode=3
      tStream.Open
      oUpFileStream.Position=iInfoEnd 
      oUpFileStream.CopyTo tStream,iFormStart-iInfoEnd-2
      tStream.Position=0
      tStream.Type=2
      tStream.Charset="gb2312"
      sFormvalue=tStream.ReadText 
      form.Add sFormName,sFormvalue
    end if
    tStream.Close
    iFormStart=iFormStart+iStart+2
    '如果到文件尾了就退出
    loop until (iFormStart+2)=iFormEnd 
  RequestBinDate=""
  set tStream=nothing
End Sub
Private Sub Class_Terminate  
  '清除变量及对像
  if not Request.TotalBytes<1 then
    oUpFileStream.Close
    set oUpFileStream =nothing
    end if
  Form.RemoveAll
  File.RemoveAll
  set Form=nothing
  set File=nothing
End Sub
 '取得文件路径
Private function GetFilePath(FullPath)
  If FullPath<>"" Then
    GetFilePath=left(FullPath,InStrRev(FullPath, "\"))
    Else
    GetFilePath=""
  End If
End function
'取得文件名
Private function GetFileName(FullPath)
  If FullPath<>"" Then
    GetFileName=mid(FullPath,InStrRev(FullPath, "\")+1)
    Else
    GetFileName=""
  End If
End function
'取得扩展名
Private function GetFileExt(FullPath)
  If FullPath<>"" Then
    GetFileExt=mid(FullPath,InStrRev(FullPath, ".")+1)
    Else
    GetFileExt=""
  End If
End function
End Class

'文件属性类
Class FileInfo
  dim FormName,FileName,FilePath,FileSize,FileType,FileStart,FileExt
  Private Sub Class_Initialize 
    FileName=""
    FilePath=""
    FileSize=0
    FileStart= 0
    FormName=""
    FileType=""
    FileExt=""
  End Sub
'保存文件方法
 Public function SaveToFile(FullPath)
    dim oFileStream,ErrorChar,i
    SaveToFile=1
    if trim(fullpath)="" or right(fullpath,1)="/" then exit function
    set oFileStream=CreateObject("Adodb.Stream")
    oFileStream.Type=1
    oFileStream.Mode=3
    oFileStream.Open
    oUpFileStream.position=FileStart
    oUpFileStream.copyto oFileStream,FileSize
    oFileStream.SaveToFile FullPath,2
    oFileStream.Close
    set oFileStream=nothing 
    SaveToFile=0
  end function
End Class
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