akkoma/lib/pleroma/web/plugs/ensure_user_token_assigns_plug.ex

41 lines
1 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Plugs.EnsureUserTokenAssignsPlug do
import Plug.Conn
alias Pleroma.Helpers.AuthHelper
alias Pleroma.User
alias Pleroma.Web.OAuth.Token
@moduledoc "Ensures presence and consistency of :user and :token assigns."
def init(opts) do
opts
end
def call(%{assigns: %{user: %User{id: user_id}} = assigns} = conn, _) do
with %Token{user_id: ^user_id} <- assigns[:token] do
conn
else
%Token{} ->
# A safety net for abnormal (unexpected) scenario: :token belongs to another user
AuthHelper.drop_auth_info(conn)
_ ->
assign(conn, :token, nil)
end
end
# App-bound token case (obtained with client_id and client_secret)
def call(%{assigns: %{token: %Token{user_id: nil}}} = conn, _) do
assign(conn, :user, nil)
end
def call(conn, _) do
conn
|> assign(:user, nil)
|> assign(:token, nil)
end
end