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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Plugs.EnsureAuthenticatedPlug do
   6   import Plug.Conn
   7   import Pleroma.Web.TranslationHelpers
   8   alias Pleroma.User
   9
  10   def init(options) do
  11     options
  12   end
  13
  14   def call(%{assigns: %{user: %User{}}} = conn, _) do
  15     conn
  16   end
  17
  18   def call(conn, options) do
  19     perform =
  20       cond do
  21         options[:if_func] -> options[:if_func].()
  22         options[:unless_func] -> !options[:unless_func].()
  23         true -> true
  24       end
  25
  26     if perform do
  27       fail(conn)
  28     else
  29       conn
  30     end
  31   end
  32
  33   def fail(conn) do
  34     conn
  35     |> render_error(:forbidden, "Invalid credentials.")
  36     |> halt()
  37   end
  38 end