+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Captcha.Kocaptcha do
+ import Pleroma.Web.Gettext
alias Pleroma.Captcha.Service
@behaviour Service
- @ets __MODULE__.Ets
-
@impl Service
- def new() do
+ def new do
endpoint = Pleroma.Config.get!([__MODULE__, :endpoint])
case Tesla.get(endpoint <> "/new") do
{:error, _} ->
- %{error: "Kocaptcha service unavailable"}
+ %{error: dgettext("errors", "Kocaptcha service unavailable")}
{:ok, res} ->
- json_resp = Poison.decode!(res.body)
-
- token = json_resp["token"]
-
- true = :ets.insert(@ets, {token, json_resp["md5"]})
-
- %{type: :kocaptcha, token: token, url: endpoint <> json_resp["url"]}
+ json_resp = Jason.decode!(res.body)
+
+ %{
+ type: :kocaptcha,
+ token: json_resp["token"],
+ url: endpoint <> json_resp["url"],
+ answer_data: json_resp["md5"]
+ }
end
end
@impl Service
- def validate(token, captcha) do
- with false <- is_nil(captcha),
- [{^token, saved_md5}] <- :ets.lookup(@ets, token),
- true <- :crypto.hash(:md5, captcha) |> Base.encode16() == String.upcase(saved_md5) do
- # Clear the saved value
- cleanup(token)
-
- true
- else
- _ -> false
- end
- end
-
- @impl Service
- def cleanup(token) do
- # Only delete the entry if it exists in the table, because ets:delete raises an exception if it does not
- case :ets.lookup(@ets, token) do
- [{^token, _}] -> :ets.delete(@ets, token)
- _ -> true
- 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")}
end
end