- seconds_valid = Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid])
- valid_if_after = DateTime.subtract!(DateTime.now_utc(), seconds_valid)
-
- result =
- with {:ok, data} <- MessageEncryptor.decrypt(answer_data, secret, sign_secret),
- %{at: at, answer_data: answer_md5} <- :erlang.binary_to_term(data) do
- if DateTime.after?(at, valid_if_after),
- do: method().validate(token, captcha, answer_md5),
- else: {:error, "CAPTCHA expired"}
- else
- _ -> {:error, "Invalid answer data"}
- end
-
- {:reply, result, state}
+
+ valid_if_after = DateTime.subtract!(DateTime.now_utc(), seconds_valid())
+
+ if DateTime.before?(created_at, valid_if_after) do
+ {:error, :expired}
+ else
+ :ok
+ end
+ end
+
+ defp validate_usage(token) do
+ if is_nil(Cachex.get!(:used_captcha_cache, token)) do
+ :ok
+ else
+ {:error, :already_used}
+ end
+ end
+
+ defp mark_captcha_as_used(token) do
+ ttl = seconds_valid() |> :timer.seconds()
+ Cachex.put(:used_captcha_cache, token, true, ttl: ttl)