Merge remote-tracking branch 'remotes/origin/develop' into 2168-media-preview-proxy
[akkoma] / lib / pleroma / captcha / kocaptcha.ex
1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
4
5 defmodule Pleroma.Captcha.Kocaptcha do
6 alias Pleroma.Captcha.Service
7 @behaviour Service
8
9 @impl Service
10 def new do
11 endpoint = Pleroma.Config.get!([__MODULE__, :endpoint])
12
13 case Tesla.get(endpoint <> "/new") do
14 {:error, _} ->
15 %{error: :kocaptcha_service_unavailable}
16
17 {:ok, res} ->
18 json_resp = Jason.decode!(res.body)
19
20 %{
21 type: :kocaptcha,
22 token: json_resp["token"],
23 url: endpoint <> json_resp["url"],
24 answer_data: json_resp["md5"],
25 seconds_valid: Pleroma.Config.get([Pleroma.Captcha, :seconds_valid])
26 }
27 end
28 end
29
30 @impl Service
31 def validate(_token, captcha, answer_data) do
32 # Here the token is unsed, because the unencrypted captcha answer is just passed to method
33 if not is_nil(captcha) and
34 :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(answer_data),
35 do: :ok,
36 else: {:error, :invalid}
37 end
38 end