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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.ActivityPub.MRF.NormalizeMarkup do
   6   alias Pleroma.HTML
   7
   8   @behaviour Pleroma.Web.ActivityPub.MRF
   9
  10   def filter(%{"type" => activity_type} = object) when activity_type == "Create" do
  11     scrub_policy = Pleroma.Config.get([:mrf_normalize_markup, :scrub_policy])
  12
  13     child = object["object"]
  14
  15     content =
  16       child["content"]
  17       |> HTML.filter_tags(scrub_policy)
  18
  19     child = Map.put(child, "content", content)
  20
  21     object = Map.put(object, "object", child)
  22
  23     {:ok, object}
  24   end
  25
  26   def filter(object), do: {:ok, object}
  27 end