<% ' For examples, documentation, and your own free copy, go to: ' http://www.freeaspupload.net ' Note: You can copy and use this script for free and you can make changes ' to the code, but you cannot remove the above comment. 'Changes: 'Aug 2, 2005: Add support for checkboxes and other input elements with multiple values Class FreeASPUpload Public UploadedFiles Public FormElements Private VarArrayBinRequest Private StreamRequest Private uploadedYet Private Sub Class_Initialize() Set UploadedFiles = Server.CreateObject("Scripting.Dictionary") Set FormElements = Server.CreateObject("Scripting.Dictionary") Set StreamRequest = Server.CreateObject("ADODB.Stream") StreamRequest.Type = 1 'adTypeBinary StreamRequest.Open uploadedYet = false End Sub Private Sub Class_Terminate() If IsObject(UploadedFiles) Then UploadedFiles.RemoveAll() Set UploadedFiles = Nothing End If If IsObject(FormElements) Then FormElements.RemoveAll() Set FormElements = Nothing End If StreamRequest.Close Set StreamRequest = Nothing End Sub Public Property Get Form(sIndex) Form = "" If FormElements.Exists(LCase(sIndex)) Then Form = FormElements.Item(LCase(sIndex)) End Property Public Property Get Files() Files = UploadedFiles.Items End Property 'Calls Upload to extract the data from the binary request and then saves the uploaded files Public Sub Save(path) Dim streamFile, fileItem if Right(path, 1) <> "\" then path = path & "\" if not uploadedYet then Upload For Each fileItem In UploadedFiles.Items Set streamFile = Server.CreateObject("ADODB.Stream") streamFile.Type = 1 streamFile.Open StreamRequest.Position=fileItem.Start StreamRequest.CopyTo streamFile, fileItem.Length streamFile.SaveToFile path & fileItem.FileName, 2 streamFile.close Set streamFile = Nothing fileItem.Path = path & fileItem.FileName Next End Sub Public Function SaveBinRequest(path) ' For debugging purposes StreamRequest.SaveToFile path & "\debugStream.bin", 2 End Function Public Sub DumpData() 'only works if files are plain text Dim i, aKeys, f response.write "Form Items:
" aKeys = FormElements.Keys For i = 0 To FormElements.Count -1 ' Iterate the array response.write aKeys(i) & " = " & FormElements.Item(aKeys(i)) & "
" Next response.write "Uploaded Files:
" For Each f In UploadedFiles.Items response.write "Name: " & f.FileName & "
" response.write "Type: " & f.ContentType & "
" response.write "Start: " & f.Start & "
" response.write "Size: " & f.Length & "
" Next End Sub Private Sub Upload() Dim nCurPos, nDataBoundPos, nLastSepPos Dim nPosFile, nPosBound Dim sFieldName, osPathSep, auxStr 'RFC1867 Tokens Dim vDataSep Dim tNewLine, tDoubleQuotes, tTerm, tFilename, tName, tContentDisp, tContentType tNewLine = Byte2String(Chr(13)) tDoubleQuotes = Byte2String(Chr(34)) tTerm = Byte2String("--") tFilename = Byte2String("filename=""") tName = Byte2String("name=""") tContentDisp = Byte2String("Content-Disposition") tContentType = Byte2String("Content-Type:") uploadedYet = true on error resume next VarArrayBinRequest = Request.BinaryRead(Request.TotalBytes) if Err.Number <> 0 then response.write "

System reported this error:

" response.write Err.Description & "

" response.write "The most likely cause for this error is the incorrect setup of AspMaxRequestEntityAllowed in IIS MetaBase. Please see instructions in the requirements page of freeaspupload.net.

" Exit Sub end if on error goto 0 'reset error handling nCurPos = FindToken(tNewLine,1) 'Note: nCurPos is 1-based (and so is InstrB, MidB, etc) If nCurPos <= 1 Then Exit Sub 'vDataSep is a separator like -----------------------------21763138716045 vDataSep = MidB(VarArrayBinRequest, 1, nCurPos-1) 'Start of current separator nDataBoundPos = 1 'Beginning of last line nLastSepPos = FindToken(vDataSep & tTerm, 1) Do Until nDataBoundPos = nLastSepPos nCurPos = SkipToken(tContentDisp, nDataBoundPos) nCurPos = SkipToken(tName, nCurPos) sFieldName = ExtractField(tDoubleQuotes, nCurPos) nPosFile = FindToken(tFilename, nCurPos) nPosBound = FindToken(vDataSep, nCurPos) If nPosFile <> 0 And nPosFile < nPosBound Then Dim oUploadFile Set oUploadFile = New UploadedFile nCurPos = SkipToken(tFilename, nCurPos) auxStr = ExtractField(tDoubleQuotes, nCurPos) ' We are interested only in the name of the file, not the whole path ' Path separator is \ in windows, / in UNIX ' While IE seems to put the whole pathname in the stream, Mozilla seem to ' only put the actual file name, so UNIX paths may be rare. But not impossible. osPathSep = "\" if InStr(auxStr, osPathSep) = 0 then osPathSep = "/" oUploadFile.FileName = Right(auxStr, Len(auxStr)-InStrRev(auxStr, osPathSep)) if (Len(oUploadFile.FileName) > 0) then 'File field not left empty nCurPos = SkipToken(tContentType, nCurPos) auxStr = ExtractField(tNewLine, nCurPos) ' NN on UNIX puts things like this in the streaa: ' ?? python py type=?? python application/x-python oUploadFile.ContentType = Right(auxStr, Len(auxStr)-InStrRev(auxStr, " ")) nCurPos = FindToken(tNewLine, nCurPos) + 4 'skip empty line oUploadFile.Start = nCurPos-1 oUploadFile.Length = FindToken(vDataSep, nCurPos) - 2 - nCurPos If oUploadFile.Length > 0 Then UploadedFiles.Add LCase(sFieldName), oUploadFile End If Else Dim nEndOfData nCurPos = FindToken(tNewLine, nCurPos) + 4 'skip empty line nEndOfData = FindToken(vDataSep, nCurPos) - 2 If Not FormElements.Exists(LCase(sFieldName)) Then FormElements.Add LCase(sFieldName), String2Byte(MidB(VarArrayBinRequest, nCurPos, nEndOfData-nCurPos)) else FormElements.Item(LCase(sFieldName))= FormElements.Item(LCase(sFieldName)) & ", " & String2Byte(MidB(VarArrayBinRequest, nCurPos, nEndOfData-nCurPos)) end if End If 'Advance to next separator nDataBoundPos = FindToken(vDataSep, nCurPos) Loop StreamRequest.Write(VarArrayBinRequest) End Sub Private Function SkipToken(sToken, nStart) SkipToken = InstrB(nStart, VarArrayBinRequest, sToken) If SkipToken = 0 then Response.write "Error in parsing uploaded binary request." Response.End end if SkipToken = SkipToken + LenB(sToken) End Function Private Function FindToken(sToken, nStart) FindToken = InstrB(nStart, VarArrayBinRequest, sToken) End Function Private Function ExtractField(sToken, nStart) Dim nEnd nEnd = InstrB(nStart, VarArrayBinRequest, sToken) If nEnd = 0 then Response.write "Error in parsing uploaded binary request." Response.End end if ExtractField = String2Byte(MidB(VarArrayBinRequest, nStart, nEnd-nStart)) End Function 'String to byte string conversion Private Function Byte2String(sString) Dim i For i = 1 to Len(sString) Byte2String = Byte2String & ChrB(AscB(Mid(sString,i,1))) Next End Function 'Byte string to string conversion Private Function String2Byte(bsString) Dim i String2Byte ="" For i = 1 to LenB(bsString) String2Byte = String2Byte & Chr(AscB(MidB(bsString,i,1))) Next End Function End Class Class UploadedFile Public ContentType Public Start Public Length Public Path Private nameOfFile ' Need to remove characters that are valid in UNIX, but not in Windows Public Property Let FileName(fN) nameOfFile = fN nameOfFile = SubstNoReg(nameOfFile, "\", "_") nameOfFile = SubstNoReg(nameOfFile, "/", "_") nameOfFile = SubstNoReg(nameOfFile, ":", "_") nameOfFile = SubstNoReg(nameOfFile, "*", "_") nameOfFile = SubstNoReg(nameOfFile, "?", "_") nameOfFile = SubstNoReg(nameOfFile, """", "_") nameOfFile = SubstNoReg(nameOfFile, "<", "_") nameOfFile = SubstNoReg(nameOfFile, ">", "_") nameOfFile = SubstNoReg(nameOfFile, "|", "_") End Property Public Property Get FileName() FileName = nameOfFile End Property 'Public Property Get FileN()ame End Class ' Does not depend on RegEx, which is not available on older VBScript ' Is not recursive, which means it will not run out of stack space Function SubstNoReg(initialStr, oldStr, newStr) Dim currentPos, oldStrPos, skip If IsNull(initialStr) Or Len(initialStr) = 0 Then SubstNoReg = "" ElseIf IsNull(oldStr) Or Len(oldStr) = 0 Then SubstNoReg = initialStr Else If IsNull(newStr) Then newStr = "" currentPos = 1 oldStrPos = 0 SubstNoReg = "" skip = Len(oldStr) Do While currentPos <= Len(initialStr) oldStrPos = InStr(currentPos, initialStr, oldStr) If oldStrPos = 0 Then SubstNoReg = SubstNoReg & Mid(initialStr, currentPos, Len(initialStr) - currentPos + 1) currentPos = Len(initialStr) + 1 Else SubstNoReg = SubstNoReg & Mid(initialStr, currentPos, oldStrPos - currentPos) & newStr currentPos = oldStrPos + skip End If Loop End If End Function %>