- def validate(token, captcha, answer_data) do
- secret_key_base = Pleroma.Config.get!([Pleroma.Web.Endpoint, :secret_key_base])
- secret = KeyGenerator.generate(secret_key_base, token <> "_encrypt")
- sign_secret = KeyGenerator.generate(secret_key_base, token <> "_sign")
-
- # If the time found is less than (current_time - seconds_valid), then the time has already passed.
- # Later we check that the time found is more than the presumed invalidatation time, that means
- # that the data is still valid and the captcha can be checked
- seconds_valid = Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid])
- valid_if_after = DateTime.subtract!(DateTime.now_utc(), seconds_valid)
-
- with {:ok, data} <- MessageEncryptor.decrypt(answer_data, secret, sign_secret),
- %{at: at, answer_md5: answer_md5} <- :erlang.binary_to_term(data) do
- if DateTime.after?(at, valid_if_after) do
- if not is_nil(captcha) and
- :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(answer_md5),
- do: :ok,
- else: {:error, "Invalid CAPTCHA"}
- else
- {:error, "CAPTCHA expired"}
- end
- else
- _ -> {:error, "Invalid answer data"}
- end
+ def validate(_token, captcha, answer_data) do
+ # Here the token is unsed, because the unencrypted captcha answer is just passed to method
+ if not is_nil(captcha) and
+ :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(answer_data),
+ do: :ok,
+ else: {:error, dgettext("errors", "Invalid CAPTCHA")}