Unzip a memorystream (Contains the zip file) and get the files

Question

I have a memory stream that contains a zip file in byte[] format .

Is there any way I can unzip this memory stream, without any need of writing the file to disk ?

Answer 1

I've just had a similar issue and the answer I found which I think seems to be fairly elegant is to use #ZipLib (available using nuget) and do the following:

private byte[] GetUncompressedPayload(byte[] data)
{
    using (var outputStream = new MemoryStream())
    using (var inputStream = new MemoryStream(data))
    {
        using (var zipInputStream = new ZipInputStream(inputStream))
        {
            zipInputStream.GetNextEntry();
            zipInputStream.CopyTo(outputStream);
        }
        return outputStream.ToArray();
    }
}

This seems to have worked a treat. Hope this helps.