git.squeep.com Git - akkoma/blob - lib/pleroma/captcha/kocaptcha.ex

   1 defmodule Pleroma.Captcha.Kocaptcha do
   2   alias Pleroma.Captcha.Service
   3   @behaviour Service
   4
   5   @impl Service
   6   def new() do
   7     endpoint = Pleroma.Config.get!([__MODULE__, :endpoint])
   8
   9     case Tesla.get(endpoint <> "/new") do
  10       {:error, _} ->
  11         %{error: "Kocaptcha service unavailable"}
  12
  13       {:ok, res} ->
  14         json_resp = Poison.decode!(res.body)
  15
  16         %{
  17           type: :kocaptcha,
  18           token: json_resp["token"],
  19           url: endpoint <> json_resp["url"],
  20           answer_data: json_resp["md5"]
  21         }
  22     end
  23   end
  24
  25   @impl Service
  26   def validate(_token, captcha, answer_data) do
  27     # Here the token is unsed, because the unencrypted captcha answer is just passed to method
  28     if not is_nil(captcha) and
  29          :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(answer_data),
  30        do: :ok,
  31        else: {:error, "Invalid CAPTCHA"}
  32   end
  33 end