gistfile1.txt

defp do_send_file(conn, file, opts \\ []) do
    path = Path.join(filestorage_path(), file.file_path_hash)
    Logger.debug "Streaming file #{path}"
    if File.exists?(path) do
      conn = case Keyword.has_key?(opts, :attachment) do
        true -> put_resp_header(conn, "content-disposition", "attachment; filename=\"#{file.original_file_name}\"")
        false -> put_resp_header(conn, "content-disposition", "filename=\"#{file.original_file_name}\"")
      end
      put_resp_header(conn, "content-type", file.content_type)
      |> send_file(200, path)
    else
      conn
      |> send_resp(:not_found, "")
    end
  end