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<SCRIPT LANGUAGE="VBSCRIPT" RUNAT="SERVER">
'*** Pure ASP File Upload -----------------------------------------------------
' Copyright 2001-2002 (c) George Petrov,
www.UDzone.com'
' Script partially based on code from Philippe Collignon
' (
http://www.asptoday.com/articles/20000316.htm)
'
' New features added:
' * Fast file save with ADO 2.5 stream object
' * new file handling, wrapper functions, extra error checking
' * UltraDev Server Behavior extension
' * Progress bars, file limit checking, file type checking, file existence checking
' * Support for UltraDev Insert/Update Server Behavior
' * and much more ...
'
' Version: 2.0.9
'------------------------------------------------------------------------------
Function getPureUploadVersion()
getPureUploadVersion = 2.09
End Function
Sub BuildUploadRequest(RequestBin,UploadDirectory,storeType,sizeLimit,nameConflict)
Dim PosBeg, PosEnd, checkADOConn, AdoVersion, Length, boundary, boundaryPos, Pos
Dim PosFile, Name, PosBound, FileName, ContentType, Value, ValueBeg, ValueEnd, ValueLen
'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 and <A HREF=""java script:history.back(1)"">try again</a>"
Response.End
end if
'Check ADO Version
set checkADOConn = Server.CreateObject("ADODB.Connection")
on error resume next
adoVersion = CSng(checkADOConn.Version)
if err then
adoVersion = Replace(checkADOConn.Version,".",",")
adoVersion = CSng(adoVersion)
end if
err.clear
on error goto 0
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) * 1024
If Length > sizeLimit Then
Request.BinaryRead (Length)
Response.Write "Upload size " & FormatNumber(Length, 0) & "B exceeds limit of " & FormatNumber(sizeLimit, 0) & "B"
Response.Write "Please correct and <A HREF=""java script:history.back(1)"">try again</a>"
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 = LCase(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 = RemoveInvalidChars(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
if UploadRequest.Exists(name) then
UploadRequest(name).Item("Value") = UploadRequest(name).Item("Value") & "," & Value
else
UploadRequest.Add name, UploadControl
end if
'Loop to next object
BoundaryPos=InstrB(BoundaryPos+LenB(boundary),RequestBin,boundary)
Loop
Dim GP_keys, GP_i, GP_curKey, GP_value, GP_valueBeg, GP_valueLen, GP_curPath, GP_FullPath
Dim GP_CurFileName, GP_FullFileName, fso, GP_BegFolder, GP_RelFolder, GP_FileExist, Begin_Name_Num
Dim orgUploadDirectory
if InStr(UploadDirectory,"""") > 0 then
on error resume next
orgUploadDirectory = UploadDirectory
UploadDirectory = eval(UploadDirectory)
if err then
Response.Write "<B>Upload folder is invalid</B><br><br>"
Response.Write "Upload Folder: " & Trim(orgUploadDirectory) & "<br>"
Response.Write "Please correct and <A HREF=""java script:history.back(1)"">try again</a>"
err.clear
response.End
end if
on error goto 0
end if
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")
'Get the path
if InStr(UploadDirectory,"\") > 0 then
GP_curPath = UploadDirectory
if Mid(GP_curPath,Len(GP_curPath),1) <> "\" then
GP_curPath = GP_curPath & "\"
end if
GP_FullPath = GP_curPath
else
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_FullPath = Trim(Server.mappath(GP_curPath))
end if
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=""java script: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_CurFileName = UploadRequest.Item(GP_curKey).Item("FileName")
GP_FullFileName = GP_FullPath & "\" & GP_CurFileName
Set fso = CreateObject("Scripting.FileSystemObject")
'Check if the folder exist
If NOT fso.FolderExists(GP_FullPath) Then
GP_BegFolder = InStr(GP_FullPath,"\")
while GP_begFolder > 0
GP_RelFolder = Mid(GP_FullPath,1,GP_BegFolder-1)
If NOT fso.FolderExists(GP_RelFolder) Then
fso.CreateFolder(GP_RelFolder)
end if
GP_BegFolder = InStr(GP_BegFolder+1,GP_FullPath,"\")
wend
If NOT fso.FolderExists(GP_FullPath) Then
fso.CreateFolder(GP_FullPath)
end if
end if
'Check if the file already exist
GP_FileExist = false
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=""java script: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(GP_FullPath)& "\" & fso.GetBaseName(GP_CurFileName) & "_" & Begin_Name_Num & "." & fso.GetExtensionName(GP_CurFileName)
GP_FileExist = fso.FileExists(GP_FullFileName)
wend
UploadRequest.Item(GP_curKey).Item("FileName") = fso.GetBaseName(GP_CurFileName) & "_" & Begin_Name_Num & "." & fso.GetExtensionName(GP_CurFileName)
UploadRequest.Item(GP_curKey).Item("Value") = UploadRequest.Item(GP_curKey).Item("FileName")
end if
on error resume next
GP_strm2.SaveToFile GP_FullFileName,2
if err 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 "Maybe the destination directory does not exist, or you don't have write permission.<br>"
Response.Write "Please correct and <A HREF=""java script:history.back(1)"">try again</a>"
err.clear
GP_strm1.Close
GP_strm2.Close
response.End
end if
GP_strm1.Close
GP_strm2.Close
if storeType = "path" then
UploadRequest.Item(GP_curKey).Item("Value") = GP_curPath & UploadRequest.Item(GP_curKey).Item("Value")
end if
on error goto 0
end if
end if
next
End Sub
'String to byte string conversion
Function getByteString(StringStr)
Dim i, char
For i = 1 to Len(StringStr)
char = Mid(StringStr,i,1)
getByteString = getByteString & chrB(AscB(char))
Next
End Function
'Byte string to string conversion (with double-byte support now)
Function getString(StringBin)
Dim intCount,get1Byte
getString =""
For intCount = 1 to LenB(StringBin)
get1Byte = MidB(StringBin,intCount,1)
getString = getString & chr(AscB(get1Byte))
Next
End Function
Function UploadFormRequest(name)
Dim keyName
keyName = LCase(name)
if IsObject(UploadRequest) then
if UploadRequest.Exists(keyName) then
if UploadRequest.Item(keyName).Exists("Value") then
UploadFormRequest = UploadRequest.Item(keyName).Item("Value")
end if
end if
end if
End Function
Function RemoveInvalidChars(str)
Dim newStr, ci, curChar
for ci = 1 to Len(str)
curChar = Asc(LCase(Mid(str,ci,1)))
if curChar = 95 or curChar = 45 or curChar = 46 or (curChar >= 97 and curChar <= 122) or (curChar >= 48 and curChar <= 57) then
newStr = newStr & Mid(str,ci,1)
end if
next
RemoveInvalidChars = newStr
End Function
Sub PureUploadSetup()
UploadQueryString = Replace(Request.QueryString,"GP_upload=true","")
if mid(UploadQueryString,1,1) = "&" then
UploadQueryString = Mid(UploadQueryString,2)
end if
GP_uploadAction = CStr(Request.ServerVariables("URL")) & "?GP_upload=true"
If (Request.QueryString <> "") Then
if UploadQueryString <> "" then
GP_uploadAction = GP_uploadAction & "&" & UploadQueryString
end if
End If
End Sub
Function FixFieldsForUpload(GP_fieldsStr, GP_columnsStr)
Dim GP_counter, GP_Fields, GP_Columns, GP_FieldName, GP_FieldValue, GP_CurFileName, GP_CurContentType
GP_Fields = Split(GP_fieldsStr, "|")
GP_Columns = Split(GP_columnsStr, "|")
GP_fieldsStr = ""
' Get the form values
For GP_counter = LBound(GP_Fields) To UBound(GP_Fields) Step 2
GP_FieldName = LCase(GP_Fields(GP_counter))
GP_FieldValue = GP_Fields(GP_counter+1)
if UploadRequest.Exists(GP_FieldName) then
GP_CurFileName = UploadRequest.Item(GP_FieldName).Item("FileName")
GP_CurContentType = UploadRequest.Item(GP_FieldName).Item("ContentType")
else
GP_CurFileName = ""
GP_CurContentType = ""
end if
if (GP_CurFileName = "" and GP_CurContentType = "") or (GP_CurFileName <> "" and GP_CurContentType <> "") then
GP_fieldsStr = GP_fieldsStr & GP_FieldName & "|" & GP_FieldValue & "|"
end if
Next
if GP_fieldsStr <> "" then
GP_fieldsStr = Mid(GP_fieldsStr,1,Len(GP_fieldsStr)-1)
else
Response.Write "<B>An error has occured during record update!</B><br><br>"
Response.Write "There are no fields to update ...<br>"
Response.Write "If the file upload field is the only field on your form, you should make it required.<br>"
Response.Write "Please correct and <A HREF=""java script:history.back(1)"">try again</a>"
Response.End
end if
FixFieldsForUpload = GP_fieldsStr
End Function
Function FixColumnsForUpload(GP_fieldsStr, GP_columnsStr)
Dim GP_counter, GP_Fields, GP_Columns, GP_FieldName, GP_ColumnName, GP_ColumnValue,GP_CurFileName, GP_CurContentType
GP_Fields = Split(GP_fieldsStr, "|")
GP_Columns = Split(GP_columnsStr, "|")
GP_columnsStr = ""
' Get the form values
For GP_counter = LBound(GP_Fields) To UBound(GP_Fields) Step 2
GP_FieldName = LCase(GP_Fields(GP_counter))
GP_ColumnName = GP_Columns(GP_counter)
GP_ColumnValue = GP_Columns(GP_counter+1)
if UploadRequest.Exists(GP_FieldName) then
GP_CurFileName = UploadRequest.Item(GP_FieldName).Item("FileName")
GP_CurContentType = UploadRequest.Item(GP_FieldName).Item("ContentType")
else
GP_CurFileName = ""
GP_CurContentType = ""
end if
if (GP_CurFileName = "" and GP_CurContentType = "") or (GP_CurFileName <> "" and GP_CurContentType <> "") then
GP_columnsStr = GP_columnsStr & GP_ColumnName & "|" & GP_ColumnValue & "|"
end if
Next
if GP_columnsStr <> "" then
GP_columnsStr = Mid(GP_columnsStr,1,Len(GP_columnsStr)-1)
end if
FixColumnsForUpload = GP_columnsStr
End Function
</SCRIPT>
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