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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2019 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicy do
   6   @behaviour Pleroma.Web.ActivityPub.MRF
   7
   8   @impl true
   9   def filter(
  10         %{
  11           "type" => "Create",
  12           "object" => %{"content" => content, "attachment" => _attachment} = child_object
  13         } = object
  14       )
  15       when content in [".", "<p>.</p>"] do
  16     child_object =
  17       child_object
  18       |> Map.put("content", "")
  19
  20     object =
  21       object
  22       |> Map.put("object", child_object)
  23
  24     {:ok, object}
  25   end
  26
  27   @impl true
  28   def filter(object), do: {:ok, object}
  29 end