yns_upload.asp

该软件是用asp编写的

<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%> 
<!--#include file="Connections/conn_news.asp" -->
<% dim m
m=request("m")
%> 
<%
' *** Restrict Access To Page: Grant or deny access to this page
MM_authorizedUsers="1,2,3"
MM_authFailedURL="default.asp"
MM_grantAccess=false
If Session("MM_Username") <> "" Then
  If (false Or CStr(Session("MM_UserAuthorization"))="") Or _
         (InStr(1,MM_authorizedUsers,Session("MM_UserAuthorization"))>=1) Then
    MM_grantAccess = true
  End If
End If
If Not MM_grantAccess Then
  MM_qsChar = "?"
  If (InStr(1,MM_authFailedURL,"?") >= 1) Then MM_qsChar = "&"
  MM_referrer = Request.ServerVariables("URL")
  if (Len(Request.QueryString()) > 0) Then MM_referrer = MM_referrer & "?" & Request.QueryString()
  MM_authFailedURL = MM_authFailedURL & MM_qsChar & "accessdenied=" & Server.URLEncode(MM_referrer)
  Response.Redirect(MM_authFailedURL)
End If
%>
<%
'*** File Upload to: upload, Extensions: "GIF,JPG,JPEG,BMP,PNG", Form: form1, Redirect: "", "file", "1024000", "error"
'*** Pure ASP File Upload Modify Version by xPilot-----------------------------------------------------
' Copyright 2000 (c) George Petrov
'
' Script partially based on code from Philippe Collignon 
'              (http://www.asptoday.com/articles/20000316.htm)
'
' New features from GP:
'  * Fast file save with ADO 2.5 stream object
'  * new wrapper functions, extra error checking
'  * UltraDev Server Behavior extension
'
' Copyright 2001-2002 (c) Modify by xPilot
' *** Date: 12/15/2001 ***
' *** 支持所有双字节文件名，而且修复了原函数中遇到空格也会自动截断文件名的错误！ ***
' *** 保证百分百以原文件名保存上传文件！***
' *** Welcome to visite pilothome.yeah.net or mail [e-mail] to me！***
'
' Version: 2.0.1 Beta for GB2312,BIG5,Japan,Korea ...
'------------------------------------------------------------------------------
Sub BuildUploadRequest(RequestBin,UploadDirectory,storeType,sizeLimit,nameConflict)
  'Get the boundary
  PosBeg = 1
  PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
  if PosEnd = 0 then
    Response.Write "<b>Form was submitted with no ENCTYPE=""multipart/form-data""</b><br>"
    Response.Write "Please correct the form attributes and try again."
    Response.End
  end if
  'Check ADO Version
	set checkADOConn = Server.CreateObject("ADODB.Connection")
	adoVersion = CSng(checkADOConn.Version)
	set checkADOConn = Nothing
	if adoVersion < 2.5 then
    Response.Write "<b>You don't have ADO 2.5 installed on the server.</b><br>"
    Response.Write "The File Upload extension needs ADO 2.5 or greater to run properly.<br>"
    Response.Write "You can download the latest MDAC (ADO is included) from <a href=""www.microsoft.com/data"">www.microsoft.com/data</a><br>"
    Response.End
	end if		
  'Check content length if needed
	Length = CLng(Request.ServerVariables("HTTP_Content_Length")) 'Get Content-Length header
	If "" & sizeLimit <> "" Then
    sizeLimit = CLng(sizeLimit)
    If Length > sizeLimit Then
      Request.BinaryRead (Length)
      Response.Write "Upload size " & FormatNumber(Length, 0) & "B exceeds limit of " & FormatNumber(sizeLimit, 0) & "B"
      Response.End
    End If
  End If
  boundary = MidB(RequestBin,PosBeg,PosEnd-PosBeg)
  boundaryPos = InstrB(1,RequestBin,boundary)
  'Get all data inside the boundaries
  Do until (boundaryPos=InstrB(RequestBin,boundary & getByteString("--")))
    'Members variable of objects are put in a dictionary object
    Dim UploadControl
    Set UploadControl = CreateObject("Scripting.Dictionary")
    'Get an object name
    Pos = InstrB(BoundaryPos,RequestBin,getByteString("Content-Disposition"))
    Pos = InstrB(Pos,RequestBin,getByteString("name="))
    PosBeg = Pos+6
    PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(34)))
    Name = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
    PosFile = InstrB(BoundaryPos,RequestBin,getByteString("filename="))
    PosBound = InstrB(PosEnd,RequestBin,boundary)
    'Test if object is of file type
    If  PosFile<>0 AND (PosFile<PosBound) Then
      'Get Filename, content-type and content of file
      PosBeg = PosFile + 10
      PosEnd =  InstrB(PosBeg,RequestBin,getByteString(chr(34)))
      FileName = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
      FileName = Mid(FileName,InStrRev(FileName,"\")+1)
      'Add filename to dictionary object
      UploadControl.Add "FileName", FileName
      Pos = InstrB(PosEnd,RequestBin,getByteString("Content-Type:"))
      PosBeg = Pos+14
      PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
      'Add content-type to dictionary object
      ContentType = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
      UploadControl.Add "ContentType",ContentType
      'Get content of object
      PosBeg = PosEnd+4
      PosEnd = InstrB(PosBeg,RequestBin,boundary)-2
      Value = FileName
      ValueBeg = PosBeg-1
      ValueLen = PosEnd-Posbeg
    Else
      'Get content of object
      Pos = InstrB(Pos,RequestBin,getByteString(chr(13)))
      PosBeg = Pos+4
      PosEnd = InstrB(PosBeg,RequestBin,boundary)-2
      Value = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
      ValueBeg = 0
      ValueEnd = 0
    End If
    'Add content to dictionary object
    UploadControl.Add "Value" , Value	
    UploadControl.Add "ValueBeg" , ValueBeg
    UploadControl.Add "ValueLen" , ValueLen	
    'Add dictionary object to main dictionary
    UploadRequest.Add name, UploadControl	
    'Loop to next object
    BoundaryPos=InstrB(BoundaryPos+LenB(boundary),RequestBin,boundary)
  Loop

  GP_keys = UploadRequest.Keys
  for GP_i = 0 to UploadRequest.Count - 1
    GP_curKey = GP_keys(GP_i)
    'Save all uploaded files
    if UploadRequest.Item(GP_curKey).Item("FileName") <> "" then
      GP_value = UploadRequest.Item(GP_curKey).Item("Value")
      GP_valueBeg = UploadRequest.Item(GP_curKey).Item("ValueBeg")
      GP_valueLen = UploadRequest.Item(GP_curKey).Item("ValueLen")

      if GP_valueLen = 0 then
        Response.Write "<B>An error has occured saving uploaded file!</B><br><br>"
        Response.Write "Filename: " & Trim(GP_curPath) & UploadRequest.Item(GP_curKey).Item("FileName") & "<br>"
        Response.Write "File does not exists or is empty.<br>"
        Response.Write "Please correct and <A HREF=""javascript:history.back(1)"">try again</a>"
	  	  response.End
	    end if
      
      'Create a Stream instance
      Dim GP_strm1, GP_strm2
      Set GP_strm1 = Server.CreateObject("ADODB.Stream")
      Set GP_strm2 = Server.CreateObject("ADODB.Stream")
      
      'Open the stream
      GP_strm1.Open
      GP_strm1.Type = 1 'Binary
      GP_strm2.Open
      GP_strm2.Type = 1 'Binary
        
      GP_strm1.Write RequestBin
      GP_strm1.Position = GP_ValueBeg
      GP_strm1.CopyTo GP_strm2,GP_ValueLen
    
      'Create and Write to a File
      GP_curPath = Request.ServerVariables("PATH_INFO")
      GP_curPath = Trim(Mid(GP_curPath,1,InStrRev(GP_curPath,"/")) & UploadDirectory)
      if Mid(GP_curPath,Len(GP_curPath),1)  <> "/" then
        GP_curPath = GP_curPath & "/"
      end if 
      GP_CurFileName = UploadRequest.Item(GP_curKey).Item("FileName")
      GP_FullFileName = Trim(Server.mappath(GP_curPath))& "\" & GP_CurFileName
      'Check if the file alreadu exist
      GP_FileExist = false
      Set fso = CreateObject("Scripting.FileSystemObject")
      If (fso.FileExists(GP_FullFileName)) Then
        GP_FileExist = true
      End If      
      if nameConflict = "error" and GP_FileExist then
        Response.Write "<B>File already exists!</B><br><br>"
        Response.Write "Please correct and <A HREF=""javascript:history.back(1)"">try again</a>"
				GP_strm1.Close
				GP_strm2.Close
	  	  response.End
      end if
      if ((nameConflict = "over" or nameConflict = "uniq") and GP_FileExist) or (NOT GP_FileExist) then
        if nameConflict = "uniq" and GP_FileExist then
          Begin_Name_Num = 0
          while GP_FileExist    
            Begin_Name_Num = Begin_Name_Num + 1
            GP_FullFileName = Trim(Server.mappath(GP_curPath))& "\" & fso.GetBaseName(GP_CurFileName) & "_" & Begin_Name_Num & "." & fso.GetExtensionName(GP_CurFileName)
            GP_FileExist = fso.FileExists(GP_FullFileName)