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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.Plugs.UserFetcherPlug do
   6   @moduledoc """
   7   Assigns `:auth_user` basing on `:auth_credentials`.
   8
   9   NOTE: no checks are performed at this step, auth_credentials/username could be easily faked.
  10   """
  11
  12   alias Pleroma.User
  13   import Plug.Conn
  14
  15   def init(options) do
  16     options
  17   end
  18
  19   def call(conn, _options) do
  20     with %{auth_credentials: %{username: username}} <- conn.assigns,
  21          %User{} = user <- User.get_by_nickname_or_email(username) do
  22       assign(conn, :auth_user, user)
  23     else
  24       _ -> conn
  25     end
  26   end
  27 end