app_controller.ex
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app_controller.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.MastodonAPI.AppController do
	use Pleroma.Web, :controller

	alias Pleroma.Repo
	alias Pleroma.Web.OAuth.App
	alias Pleroma.Web.OAuth.Scopes
	alias Pleroma.Web.OAuth.Token
	alias Pleroma.Web.Plugs.EnsurePublicOrAuthenticatedPlug
	alias Pleroma.Web.Plugs.OAuthScopesPlug

	action_fallback(Pleroma.Web.MastodonAPI.FallbackController)

	plug(
	:skip_plug,
	[OAuthScopesPlug, EnsurePublicOrAuthenticatedPlug]
	when action == :create
	)

	plug(OAuthScopesPlug, %{scopes: ["read"]} when action == :verify_credentials)

	plug(Pleroma.Web.ApiSpec.CastAndValidate)

	@local_mastodon_name "Mastodon-Local"

	defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.AppOperation

	@doc "POST /api/v1/apps"
	def create(%{body_params: params} = conn, _params) do
	scopes = Scopes.fetch_scopes(params, ["read"])

	app_attrs =
	params
	\|> Map.take([:client_name, :redirect_uris, :website])
	\|> Map.put(:scopes, scopes)

	with cs <- App.register_changeset(%App{}, app_attrs),
	false <- cs.changes[:client_name] == @local_mastodon_name,
	{:ok, app} <- Repo.insert(cs) do
	render(conn, "show.json", app: app)
	end
	end

	@doc "GET /api/v1/apps/verify_credentials"
	def verify_credentials(%{assigns: %{user: _user, token: token}} = conn, _) do
	with %Token{app: %App{} = app} <- Repo.preload(token, :app) do
	render(conn, "short.json", app: app)
	end
	end
	end