Upload/Download Help! PLZ HELP!!!!

Arctic · #1 (**permalink**) 08-11-03, 10:05 PM

Hi, i really need help with this, someone post something useful please!!!! I have an upload and download part on my site. I need to be able to count the uploads and make it show in text on the upload page, i have my downloads so when uploaded it saves to /files folder and displays the link to the file on the downloads page in a list, so when someone uploads a file it keeps adding to the list on the page, i want to be able to show the number of times ppl have downloaded each file beside the file link. I also want to be able to limit file size and file type on the upload part.

Uploader
-------------
(Main page with upload textfields and Upload button)
=============================================
<%@ Language=VBScript %>
<%
option explicit
Response.Expires = -1
Server.ScriptTimeout = 600
%>

<%
Dim uploadsDirVar
uploadsDirVar = "C:\WINDOWS\Desktop\Arctic\webserver\wwwroot\files "

function OutputForm()
%>
<form name="frmSend" method="POST" enctype="multipart/form-data" action="upload.asp" onSubmit="return onSubmitForm();">
File 1: <input name=attach1 type=file size=35 class="textfields"><br>
File 2: <input name=attach2 type=file size=35 class="textfields"><br>
File 3: <input name=attach3 type=file size=35 class="textfields"><br>
File 4: <input name=attach4 type=file size=35 class="textfields"><br>
<br>
<input style="margin-top:4" type=submit value="Upload" class="button">
</form>
<%
end function

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 upload.asp in an editor and change the value of uploadsDirVar to the pathname of a directory with write permissions."
exit function
end if
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 upload.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)

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) "
next
else
SaveFiles = "The file name specified in the upload form does not correspond to a valid file in the system."
end if
end function
%>

<HTML>
<HEAD>
<TITLE>FilesDomain.net - Upload</TITLE>
<link rel=stylesheet type="text/css" href="../style.css">
<script src="../noclick.js" type="text/javascript"></script>
<script>
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 background="main_bg.jpg">
<table border="0" width="100%">
<tr><td align="left" valign="top">
<div align="center">
</div>
<br><br>
<div style="border-bottom: #FFFFFF 2px solid;font-size:16">Upload your file(s) to the 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-top: #FFFFFF 2px solid;font-size:10" align="center">
<br>
<div align="center">
</div>
<br>
</div>
</td><td align="right" valign="top"><table border="0" style="border-collapse: collapse" width="160px" height="600px"><tr><th background="ad_title_bg.jpg">Advertisment</th></tr>

<td width="160px" background="120x600ad_bg.jpg" align="center">
<div style="border:thin dashed white">
<table border="0" style="border-collapse: collapse">
<tr><td>
 </td></tr>
</td></table></div>

</td></tr>
</table>
</BODY>
</HTML>
=============================================

(freeaspupload.asp, the file used for uploading in the form on the main upload page)
=============================================
<%
' 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.

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:<br>"
aKeys = FormElements.Keys
For i = 0 To FormElements.Count -1 ' Iterate the array
response.write aKeys(i) & " = " & FormElements.Item(aKeys(i)) & "<BR>"
Next
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>"
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

VarArrayBinRequest = Request.BinaryRead(Request.TotalBytes)

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))
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
%>
==============================================

If anyone can just edit where to put the stuff to make the above things i talked about work, i would be so thankful. Please make a little paragraph explaining why u put it there and how it works would also be helpful for me to learn a bit more asp.

Arctic · #2 (**permalink**) 08-11-03, 10:07 PM

Oh ya, i forgot the download part, but ill post that stuff up when i get the upload part working, hehe oops

Shane · #3 (**permalink**) 08-12-03, 07:28 PM

So, basically, for the uploads function, you just need help counting the total uploads?

How do you want to store your data, text file or database?

Arctic · #4 (**permalink**) 08-13-03, 01:05 AM

I would like to store it in a database. and i would also like to know if you can help me put a file size and file type limit on the uploader. I have been trying to make it have a file size and type limit but everything i have tried isnt working, im just starting out in asp, only been at it for about 1 month. any help would be great.

Arctic · #5 (**permalink**) 08-16-03, 01:36 AM

Never Mind, i figured it out myself.