|ByteArray - accept very large data in POST/PUT request, ASP, VBScript|
<% 'This sample demonstrates store of large binary data. 'It accepts up to 2GB of a source data a PUT or POST SaveLargePostData "C:\temp\uploaddata.dat" Sub SaveLargePostData(DestFile) Const BlockSize = 4096 Dim TotalBytes, DataReaded, ReadBlockSize, BinaryData TotalBytes = Request.TotalBytes If TotalBytes > 0 Then Dim ByteArray: Set ByteArray = GetByteArray() For DataReaded = 0 To TotalBytes Step BlockSize If BlockSize + DataReaded > TotalBytes Then 'Last block, IIS6 does not accept to read more data ReadBlockSize = TotalBytes - DataReaded Else ReadBlockSize = BlockSize End If ByteArray.ByteArray = Request.BinaryRead(ReadBlockSize ) 'Save the block of a source data. If DataReaded = 0 Then 'The first block will overwrite existing file (if one) ByteArray.SaveAs DestFile Else 'Position of SaveAs (second parameter) is based to 1 ByteArray.SaveAs DestFile, 1 + DataReaded End If Next ' DataReaded Response.Write "<br>Source data (" & TotalBytes & _ "B) was saved to '" & DestFile & "'" End If ' TotalBytes>0 then End Sub 'Returns ByteArray object. Solves problem with registration and installation Function GetByteArray() On Error Resume Next Dim Binary Set Binary = CreateObject("ScriptUtils.ByteArray") 'Creates ByteArray object 'response.write hex(Err) If Err = &h46 Then On Error Goto 0 Err.Raise 5, "ScriptUtils.ByteArray", "Insufficient permissions to the scptult.ocx file. User: '" & GetUserName & "' must have read permission to the file." ElseIf Err = &h1ad Then On Error Goto 0 Err.Raise 6, "ScriptUtils.ByteArray", "Script Utilities is not correctly installed. Please, install Script Utilities on this server or copy and register scptutl.ocx file on this server." ElseIf Err = &h8007045A Then On Error Goto 0 Err.Raise 6, "ScriptUtils.ByteArray", "The evaluation version of Script Utilities was expired. Please install full version." ElseIf Err = &h8007007E Then On Error Goto 0 Err.Raise 6, "ScriptUtils.ByteArray", "The ScriptUtilities library (scptutl.ocx) is missing. Please copy the library or reinstall the software." ElseIf Err <> 0 Then Dim E, N N = Hex(Err) E = Err.Description On Error Goto 0 Err.Raise 6, "ScriptUtils.ByteArray", "Cannot create ScriptUtils.ByteArray object, Error: '" & N & " " & E & "'" End If Set GetByteArray = Binary End Function %>
Works with safearray binary data - save/restore binary data from/to a disk, convert to a string/hexstring, codepage/charset conversions, Base64 conversion, etc.
ByteArray is a COM class specially designed to work with Microsoft Windows Scripting engines - VB Script and JScript in Active Server Pages or WSH and in CHM or HTA applications. It also works with VB Net, Visual basic (VBA - VB 5, VB 6, Word, Excel, Access, …), C#, J#, C++, ASP, ASP.Net, Delphi and with T-SQL OLE functions - see Use ByteArray object article. You can also use the object in other programming environments with COM support, such is PowerBuilder.
Source code for ByteArray is available within distribution license, please see License page for ASP file upload and ScriptUtilities.
Huge ASP upload is easy to use, hi-performance ASP file upload component with progress bar indicator. This component lets you upload multiple files with size up to 4GB to a disk or a database along with another form fields. Huge ASP file upload is a most featured upload component on a market with competitive price and a great performance . The software has also a free version of asp upload with progress, called Pure asp upload , written in plain VBS, without components (so you do not need to install anything on server). This installation package contains also ScriptUtilities library. Script Utilities lets you create hi-performance log files , works with binary data , you can download multiple files with zip/arj compression, work with INI files and much more with the ASP utility.
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