def reboot(conn, %{"url" => url, "port" => port, "user" => user, "password" => password} = _params) do
    with %User{} <- conn.assigns[:current_user] do
      with %Porcelain.Result{err: nil, out: output, status: 0} <- Porcelain.shell("nvr_reboot #{url} #{port} #{user} #{password}") do
        String.match?(output, ~r/success/)
        |> case do
          true -> conn |> put_status(201) |> json(%{reboot: true})
          _ -> render_error(conn, 400, "Failed to reboot NVR.")
        end
      else
        _ -> render_error(conn, 400, "Failed to reboot NVR.")
      end
    else
      nil ->
        render_error(conn, 401, "Unauthorized")
    end
  end