ensure_public_or_authenticated_plug.ex
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ensure_public_or_authenticated_plug.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.Plugs.EnsurePublicOrAuthenticatedPlug do
	@moduledoc """
	Ensures instance publicity or _user_ authentication
	(app-bound user-unbound tokens are accepted only if the instance is public).
	"""

	import Pleroma.Web.TranslationHelpers
	import Plug.Conn

	alias Pleroma.Config
	alias Pleroma.User

	use Pleroma.Web, :plug

	def init(options) do
	options
	end

	@impl true
	def perform(conn, _) do
	public? = Config.get!([:instance, :public])

	case {public?, conn} do
	{true, _} ->
	conn

	{false, %{assigns: %{user: %User{}}}} ->
	conn

	{false, _} ->
	conn
	\|> render_error(:forbidden, "This resource requires authentication.")
	\|> halt
	end
	end
	end