' w32DownloadUnzip.vbs

'   Download a zipfile and uncompress it with no external tools in Windows

'

' Copyright (c) 2012, Vittorio Giovara, <vittorio.giovara@gmail.com>

' Redistribution and use is allowed according to the terms of the BSD license.

'

' References

'   http://superuser.com/questions/59465/is-it-possible-to-download-using-the-windows-command-line

'   http://stackoverflow.com/questions/1021557/how-to-unzip-a-file-using-the-command-line

'   http://stackoverflow.com/questions/424331/get-the-current-temporary-directory-path-in-vbscript

Set ArgObj = WScript.Arguments

If (Wscript.Arguments.Count = 1) Then

    strFileURL = ArgObj(0)

    strOutputPath = CreateObject("Scripting.FileSystemObject").GetAbsolutePathName(".")

Else

    If (Wscript.Arguments.Count = 2) Then

        strFileURL = ArgObj(0)

        strOutputPath = ArgObj(1)

    Else

        WScript.Echo ("Usage: csript.exe w32DownloadUnzip.vbs url output")

        WScript.Quit

    End if

End if

' Temporary directory

strHDLocation = WScript.CreateObject("Scripting.FileSystemObject").GetSpecialFolder(2) + "\hwlibtemp.zip"

' Fetch the file

WScript.Echo ( "Trying to download from " & strFileURL)

Set objXMLHTTP = CreateObject("MSXML2.XMLHTTP")

objXMLHTTP.open "GET", strFileURL, false

objXMLHTTP.send()

If objXMLHTTP.Status = 200 Then

    Set objADOStream = CreateObject("ADODB.Stream")

    objADOStream.Open

    objADOStream.Type = 1 'adTypeBinary

    objADOStream.Write objXMLHTTP.ResponseBody

    objADOStream.Position = 0 'Set the stream position to the start

    Set objFSO = Createobject("Scripting.FileSystemObject")

    If objFSO.Fileexists(strHDLocation) Then objFSO.DeleteFile strHDLocation

    Set objFSO = Nothing

    objADOStream.SaveToFile strHDLocation

    objADOStream.Close

    Set objADOStream = Nothing

    Set objXMLHTTP = Nothing

Else

    WScript.Echo ("Error downloading file (error code: " & objXMLHTTP.Status & ")")

    Set objXMLHTTP = Nothing

    WScript.Quit

End if

WScript.Echo ( "Extracting file to " & strOutputPath)

Set objShell = CreateObject( "Shell.Application" )

Set objSource = objShell.NameSpace(strHDLocation).Items()

Set objTarget = objShell.NameSpace(strOutputPath)

intOptions = 16 'no user prompt

objTarget.CopyHere objSource, intOptions

WScript.Echo ( "Success!" )

Set objShell = Nothing