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# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Captcha.Native do
import Pleroma.Web.Gettext
alias Pleroma.Captcha.Service
@behaviour Service
@impl Service
def new do
case Captcha.get() do
:error ->
%{error: dgettext("errors", "Captcha error")}
{:ok, answer_data, img_binary} ->
%{
type: :native,
token: token(),
url: "data:image/png;base64," <> Base.encode64(img_binary),
answer_data: answer_data
}
end
end
@impl Service
def validate(_token, captcha, captcha) when not is_nil(captcha), do: :ok
def validate(_token, _captcha, _answer), do: {:error, dgettext("errors", "Invalid CAPTCHA")}
defp token do
10
|> :crypto.strong_rand_bytes()
|> Base.url_encode64(padding: false)
end
end
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