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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.MastodonAPI.AppController do
   6   @moduledoc """
   7   Controller for supporting app-related actions.
   8   If authentication is an option, app tokens (user-unbound) must be supported.
   9   """
  10
  11   use Pleroma.Web, :controller
  12
  13   alias Pleroma.Maps
  14   alias Pleroma.Repo
  15   alias Pleroma.User
  16   alias Pleroma.Web.OAuth.App
  17   alias Pleroma.Web.OAuth.Scopes
  18   alias Pleroma.Web.OAuth.Token
  19
  20   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
  21
  22   plug(:skip_auth when action in [:create, :verify_credentials])
  23
  24   plug(Pleroma.Web.ApiSpec.CastAndValidate)
  25
  26   defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.AppOperation
  27
  28   @doc "POST /api/v1/apps"
  29   def create(%{body_params: params} = conn, _params) do
  30     scopes = Scopes.fetch_scopes(params, ["read"])
  31     user_id = get_user_id(conn)
  32
  33     app_attrs =
  34       params
  35       |> Map.take([:client_name, :redirect_uris, :website])
  36       |> Map.put(:scopes, scopes)
  37       |> Maps.put_if_present(:user_id, user_id)
  38
  39     with cs <- App.register_changeset(%App{}, app_attrs),
  40          {:ok, app} <- Repo.insert(cs) do
  41       render(conn, "show.json", app: app)
  42     end
  43   end
  44
  45   defp get_user_id(%{assigns: %{user: %User{id: user_id}}}), do: user_id
  46   defp get_user_id(_conn), do: nil
  47
  48   @doc """
  49   GET /api/v1/apps/verify_credentials
  50   Gets compact non-secret representation of the app. Supports app tokens and user tokens.
  51   """
  52   def verify_credentials(%{assigns: %{token: %Token{} = token}} = conn, _) do
  53     with %{app: %App{} = app} <- Repo.preload(token, :app) do
  54       render(conn, "compact_non_secret.json", app: app)
  55     end
  56   end
  57 end