class Rack::Multipart::Parser::Collector::MimePart

def get_data
  data = body
  if filename == ""
    # filename is blank which means no file has been selected
    return
  elsif filename
    body.rewind if body.respond_to?(:rewind)
    # Take the basename of the upload's original filename.
    # This handles the full Windows paths given by Internet Explorer
    # (and perhaps other broken user agents) without affecting
    # those which give the lone filename.
    fn = filename.split(/[\/\\]/).last
    data = { filename: fn, type: content_type,
            name: name, tempfile: body, head: head }
  end
  yield data
end