Pure ASP uploader

Pure ASP uploader

You will copy the below into 2 files. make sure you set the full path about 17 lines below:

change uploadsDirVar = "d:\inetpub\webmailasp\database\tempUploads" to the path that matches your server

Sample files in ZIP: freeASPUpload.zip

Create a file uploadTester.asp fille with below down to page break:

<%@ Language=VBScript %>

option explicit

Response.Expires = -1

Server.ScriptTimeout = 600

' All communication must be in UTF-8, including the response back from the request

Session.CodePage = 65001

' ****************************************************

' Change the value of the variable below to the pathname

' of a directory with write permissions, for example "C:\Inetpub\wwwroot"

' ****************************************************

Dim uploadsDirVar

uploadsDirVar = "d:\inetpub\webmailasp\database\tempUploads"

' Note: this file uploadTester.asp is just an example to demonstrate

' the capabilities of the freeASPUpload.asp class. There are no plans

' to add any new features to uploadTester.asp itself. Feel free to add

' your own code. If you are building a content management system, you

' may also want to consider this script: http://www.webfilebrowser.com/

function OutputForm()

<B>File names:</B><br>

File 1: <input name="attach1" type="file" size=35><br>

File 2: <input name="attach2" type="file" size=35><br>

File 3: <input name="attach3" type="file" size=35><br>

File 4: <input name="attach4" type="file" size=35><br>

<br>

<B>Additional fields (demo):</B><br>

Enter a number: <input type="text" name="enter_a_number"><br>

Checkbox values: <input type="checkbox" value="1" name="checkbox_values"> 1   <input type="checkbox" value="2" name="checkbox_values"> 2<br>

Drop-down list (with multiple selection): <br>

<option value='frist' > First</option>

<option value='second' > Second</option>

<option value='third' > Third</option>

</select><br>

</form>

end function

uploadTester.asp

function TestEnvironment()

Dim fso, fileName, testFile, streamTest

TestEnvironment = ""

Set fso = Server.CreateObject("Scripting.FileSystemObject")

if not fso.FolderExists(uploadsDirVar) then

TestEnvironment = "<B>Folder " & uploadsDirVar & " does not exist.</B><br>The value of your uploadsDirVar is incorrect. Open uploadTester.asp in an editor and change the value of uploadsDirVar to the pathname of a directory with write permissions."

exit function

end if

uploadTester.asp

fileName = uploadsDirVar & "\test.txt"

on error resume next

Set testFile = fso.CreateTextFile(fileName, true)

If Err.Number<>0 then

TestEnvironment = "<B>Folder " & uploadsDirVar & " does not have write permissions.</B><br>The value of your uploadsDirVar is incorrect. Open uploadTester.asp in an editor and change the value of uploadsDirVar to the pathname of a directory with write permissions."

exit function

end if

Err.Clear

testFile.Close

fso.DeleteFile(fileName)

If Err.Number<>0 then

TestEnvironment = "<B>Folder " & uploadsDirVar & " does not have delete permissions</B>, although it does have write permissions.<br>Change the permissions for IUSR_<I>computername</I> on this folder."

exit function

end if

Err.Clear

Set streamTest = Server.CreateObject("ADODB.Stream")

If Err.Number<>0 then

TestEnvironment = "<B>The ADODB object <I>Stream</I> is not available in your server.</B><br>Check the Requirements page for information about upgrading your ADODB libraries."

exit function

end if

Set streamTest = Nothing

end function

function SaveFiles

Dim Upload, fileName, fileSize, ks, i, fileKey

Set Upload = New FreeASPUpload

Upload.Save(uploadsDirVar)

' If something fails inside the script, but the exception is handled

If Err.Number<>0 then Exit function

SaveFiles = ""

ks = Upload.UploadedFiles.keys

if (UBound(ks) <> -1) then

SaveFiles = "<B>Files uploaded:</B> "

for each fileKey in Upload.UploadedFiles.keys

SaveFiles = SaveFiles & Upload.UploadedFiles(fileKey).FileName & " (" & Upload.UploadedFiles(fileKey).Length & "B) "

else

SaveFiles = "No file selected for upload or the file name specified in the upload form does not correspond to a valid file in the system."

end if

SaveFiles = SaveFiles & "<br>Enter a number = " & Upload.Form("enter_a_number") & "<br>"

SaveFiles = SaveFiles & "Checkbox values = " & Upload.Form("checkbox_values") & "<br>"

SaveFiles = SaveFiles & "List values = " & Upload.Form("list_values") & "<br>"

SaveFiles = SaveFiles & "Text area = " & Upload.Form("t_area") & "<br>"

end function

<HTML>

<HEAD>

<TITLE>Test Free ASP Upload 2.0</TITLE>

<style>

BODY {background-color: white;font-family:arial; font-size:12}

</style>

function onSubmitForm() {

var formDOMObj = document.frmSend;

if (formDOMObj.attach1.value == "" && formDOMObj.attach2.value == "" && formDOMObj.attach3.value == "" && formDOMObj.attach4.value == "" )

alert("Please press the Browse button and pick a file.")

else

return true;

return false;

}

</script>

</HEAD>

<BODY>

uploadTester.asp<div style="border-bottom: #A91905 2px solid;font-size:16">Upload files to your server</div>

Dim diagnostics

if Request.ServerVariables("REQUEST_METHOD") <> "POST" then

diagnostics = TestEnvironment()

if diagnostics<>"" then

response.write "<div style=""margin-left:20; margin-top:30; margin-right:30; margin-bottom:30;"">"

response.write diagnostics

response.write "<p>After you correct this problem, reload the page."

response.write "</div>"

else

response.write "<div style=""margin-left:150"">"

OutputForm()

response.write "</div>"

end if

else

response.write "<div style=""margin-left:150"">"

OutputForm()

response.write SaveFiles()

response.write "<br><br></div>"

end if

<div style="border-bottom: #A91905 2px solid;font-size:10">Powered by <A HREF="http://www.freeaspupload.net/" style="color:black">Free ASP Upload</A></div>

<tr>

<td colspan="2"><b><font color="#FFFFFF">Rate Our Program<br>at Hotscripts.com

</font></b></td>

</tr>

<tr>

<td><font color="#FFFFFF">Excellent!</font></td>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

</tr>

</table></td>

</tr>

</form>

</table>

</BODY>

</HTML>

Create a file called freeASPUpload.asp and fill with below.

' 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

'Jan 6, 2009: Lars added ASP_CHUNK_SIZE

'Sep 3, 2010: Enforce UTF-8 everywhere; new function to convert byte array to unicode string

const DEFAULT_ASP_CHUNK_SIZE = 200000

const adModeReadWrite = 3

const adTypeBinary = 1

const adTypeText = 2

const adSaveCreateOverWrite = 2

Class FreeASPUpload

Public UploadedFiles

Public FormElements

Private VarArrayBinRequest

Private StreamRequest

Private uploadedYet

Private internalChunkSize

Private Sub Class_Initialize()

Set UploadedFiles = Server.CreateObject("Scripting.Dictionary")

Set FormElements = Server.CreateObject("Scripting.Dictionary")

Set StreamRequest = Server.CreateObject("ADODB.Stream")

StreamRequest.Type = adTypeText

StreamRequest.Open

uploadedYet = false

internalChunkSize = DEFAULT_ASP_CHUNK_SIZE

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

Public Property Get Exists(sIndex)

Exists = false

If FormElements.Exists(LCase(sIndex)) Then Exists = true

End Property

Public Property Get FileExists(sIndex)

FileExists = false

if UploadedFiles.Exists(LCase(sIndex)) then FileExists = true

End Property

Public Property Get chunkSize()

chunkSize = internalChunkSize

End Property

Public Property Let chunkSize(sz)

internalChunkSize = sz

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, filePath

if Right(path, 1) <> "\" then path = path & "\"

if not uploadedYet then Upload

For Each fileItem In UploadedFiles.Items

filePath = path & fileItem.FileName

Set streamFile = Server.CreateObject("ADODB.Stream")

streamFile.Type = adTypeBinary

streamFile.Open

StreamRequest.Position=fileItem.Start

StreamRequest.CopyTo streamFile, fileItem.Length

streamFile.SaveToFile filePath, adSaveCreateOverWrite

streamFile.close

Set streamFile = Nothing

fileItem.Path = filePath

End Sub

public sub SaveOne(path, num, byref outFileName, byref outLocalFileName)

Dim streamFile, fileItems, fileItem, fs

set fs = Server.CreateObject("Scripting.FileSystemObject")

if Right(path, 1) <> "\" then path = path & "\"

if not uploadedYet then Upload

if UploadedFiles.Count > 0 then

fileItems = UploadedFiles.Items

set fileItem = fileItems(num)

outFileName = fileItem.FileName

outLocalFileName = GetFileName(path, outFileName)

Set streamFile = Server.CreateObject("ADODB.Stream")

streamFile.Type = adTypeBinary

streamFile.Open

StreamRequest.Position = fileItem.Start

StreamRequest.CopyTo streamFile, fileItem.Length

streamFile.SaveToFile path & outLocalFileName, adSaveCreateOverWrite

streamFile.close

Set streamFile = Nothing

fileItem.Path = path & filename

end if

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:<br>"

aKeys = FormElements.Keys

For i = 0 To FormElements.Count -1 ' Iterate the array

response.write aKeys(i) & " = " & FormElements.Item(aKeys(i)) & "<BR>"

response.write "Uploaded Files:<br>"

For Each f In UploadedFiles.Items

response.write "Name: " & f.FileName & "<br>"

response.write "Type: " & f.ContentType & "<br>"

response.write "Start: " & f.Start & "<br>"

response.write "Size: " & f.Length & "<br>"

End Sub

Public Sub Upload()

Dim nCurPos, nDataBoundPos, nLastSepPos

Dim nPosFile, nPosBound

Dim sFieldName, osPathSep, auxStr

Dim readBytes, readLoop, tmpBinRequest

'RFC1867 Tokens

Dim vDataSep

Dim tNewLine, tDoubleQuotes, tTerm, tFilename, tName, tContentDisp, tContentType

tNewLine = String2Byte(Chr(13))

tDoubleQuotes = String2Byte(Chr(34))

tTerm = String2Byte("--")

tFilename = String2Byte("filename=""")

tName = String2Byte("name=""")

tContentDisp = String2Byte("Content-Disposition")

tContentType = String2Byte("Content-Type:")

uploadedYet = true

on error resume next

' Copy binary request to a byte array, on which functions like InstrB and others can be used to search for separation tokens

readBytes = internalChunkSize

VarArrayBinRequest = Request.BinaryRead(readBytes)

VarArrayBinRequest = midb(VarArrayBinRequest, 1, lenb(VarArrayBinRequest))

Do Until readBytes < 1

tmpBinRequest = Request.BinaryRead(readBytes)

if readBytes > 0 then

VarArrayBinRequest = VarArrayBinRequest & midb(tmpBinRequest, 1, lenb(tmpBinRequest))

end if

Loop

StreamRequest.WriteText(VarArrayBinRequest)

StreamRequest.Flush()

if Err.Number <> 0 then

response.write "<br><br><B>System reported this error:</B><p>"

response.write Err.Description & "<p>"

response.write "The most likely cause for this error is the incorrect setup of AspMaxRequestEntityAllowed in IIS MetaBase. Please see instructions in the <A HREF='http://www.freeaspupload.net/freeaspupload/requirements.asp'>requirements page of freeaspupload.net</A>.<p>"

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 stream:

' ?? 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, fieldValueUniStr

nCurPos = FindToken(tNewLine, nCurPos) + 4 'skip empty line

nEndOfData = FindToken(vDataSep, nCurPos) - 2

fieldValueuniStr = ConvertUtf8BytesToString(nCurPos, nEndOfData-nCurPos)

If Not FormElements.Exists(LCase(sFieldName)) Then

FormElements.Add LCase(sFieldName), fieldValueuniStr

else

FormElements.Item(LCase(sFieldName))= FormElements.Item(LCase(sFieldName)) & ", " & fieldValueuniStr

end if

End If

'Advance to next separator

nDataBoundPos = FindToken(vDataSep, nCurPos)

Loop

End Sub

Private Function SkipToken(sToken, nStart)

SkipToken = InstrB(nStart, VarArrayBinRequest, sToken)

If SkipToken = 0 then

Response.write "Error in parsing uploaded binary request. The most likely cause for this error is the incorrect setup of AspMaxRequestEntityAllowed in IIS MetaBase. Please see instructions in the <A HREF='http://www.freeaspupload.net/freeaspupload/requirements.asp'>requirements page of freeaspupload.net</A>.<p>"

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 = ConvertUtf8BytesToString(nStart, nEnd-nStart)

End Function

'String to byte string conversion

Private Function String2Byte(sString)

Dim i

For i = 1 to Len(sString)

String2Byte = String2Byte & ChrB(AscB(Mid(sString,i,1)))

End Function

Private Function ConvertUtf8BytesToString(start, length)

StreamRequest.Position = 0

Dim objStream

Dim strTmp

' init stream

Set objStream = Server.CreateObject("ADODB.Stream")

objStream.Charset = "utf-8"

objStream.Mode = adModeReadWrite

objStream.Type = adTypeBinary

objStream.Open

' write bytes into stream

StreamRequest.Position = start+1

StreamRequest.CopyTo objStream, length

objStream.Flush

' rewind stream and read text

objStream.Position = 0

objStream.Type = adTypeText

strTmp = objStream.ReadText

' close up and return

objStream.Close

Set objStream = Nothing

ConvertUtf8BytesToString = strTmp

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

Function GetFileName(strSaveToPath, FileName)

'This function is used when saving a file to check there is not already a file with the same name so that you don't overwrite it.

'It adds numbers to the filename e.g. file.gif becomes file1.gif becomes file2.gif and so on.

'It keeps going until it returns a filename that does not exist.

'You could just create a filename from the ID field but that means writing the record - and it still might exist!

'N.B. Requires strSaveToPath variable to be available - and containing the path to save to

Dim Counter

Dim Flag

Dim strTempFileName

Dim FileExt

Dim NewFullPath

dim objFSO, p

Set objFSO = CreateObject("Scripting.FileSystemObject")

Counter = 0

p = instrrev(FileName, ".")

FileExt = mid(FileName, p+1)

strTempFileName = left(FileName, p-1)

NewFullPath = strSaveToPath & "\" & FileName

Flag = False

Do Until Flag = True

If objFSO.FileExists(NewFullPath) = False Then

Flag = True

GetFileName = Mid(NewFullPath, InstrRev(NewFullPath, "\") + 1)

Else

Counter = Counter + 1

NewFullPath = strSaveToPath & "\" & strTempFileName & Counter & "." & FileExt

End If

Loop

End Function