git.squeep.com Git - akkoma/blob - lib/pleroma/web/activity_pub/mrf/no_placeholder_text_policy.ex

   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.ActivityPub.MRF.NoPlaceholderTextPolicy do
   6   @moduledoc "Ensure no content placeholder is present (such as the dot from mastodon)"
   7   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
   8
   9   @impl true
  10   def history_awareness, do: :auto
  11
  12   @impl true
  13   def filter(
  14         %{
  15           "type" => type,
  16           "object" => %{"content" => content, "attachment" => _} = _child_object
  17         } = object
  18       )
  19       when type in ["Create", "Update"] and content in [".", "<p>.</p>"] do
  20     {:ok, put_in(object, ["object", "content"], "")}
  21   end
  22
  23   @impl true
  24   def filter(object), do: {:ok, object}
  25
  26   @impl true
  27   def describe, do: {:ok, %{}}
  28 end