image decoding in asp

Question

HI can any body tell me how to decode a base64 string in asp classic encoded by java from an image

because the string is decoded by java so may be any java person may also help — agarwal_achhnera, Jun 18 '11 at 09:04
@user571616 In the text you say it's encoded by Java; which is it? In any case, when I search Google there's a *lot* of results--perhaps if you tried implementing one of those and asked a more-specific question? — Dave Newton, Nov 15 '11 at 23:03
possible duplicate of [base64 image decoder for ASP classic](http://stackoverflow.com/questions/4920416/base64-image-decoder-for-asp-classic) — Simone Carletti, Nov 17 '11 at 09:24

score 0 · Answer 1 · answered May 30 '12 at 11:56

Pass the base64 string into decodeBase64() function, as below and pass file name and returned value into writeBytes procedure, image will create on the file system

private function decodeBase64(base64)
        dim DM, EL
        Set DM = CreateObject("Microsoft.XMLDOM")
        ' Create temporary node with Base64 data type
        Set EL = DM.createElement("tmp")
        EL.DataType = "bin.base64"
        ' Set encoded String, get bytes
        EL.Text = base64
        decodeBase64 = EL.NodeTypedValue
    end function


private Sub writeBytes(file, bytes)

        Dim binaryStream
        Const TypeBinary = 1, ForWriting = 2
        Set binaryStream = CreateObject("ADODB.Stream")
        binaryStream.Type = TypeBinary
        'Open the stream and write binary data
        binaryStream.Open
        binaryStream.Write bytes
        'Save binary data to disk
        binaryStream.SaveToFile file, ForWriting
End Sub

image decoding in asp

1 Answers1