# Pleroma: A lightweight social networking server # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicy do alias Pleroma.Config alias Pleroma.Web.ActivityPub.MRF require Logger @behaviour Pleroma.Web.ActivityPub.MRF defp lookup_subchain(actor) do with matches <- Config.get([:mrf_subchain, :match_actor]), {match, subchain} <- Enum.find(matches, fn {k, _v} -> String.match?(actor, k) end) do {:ok, match, subchain} else _e -> {:error, :notfound} end end @impl true def filter(%{"actor" => actor} = message) do with {:ok, match, subchain} <- lookup_subchain(actor) do Logger.debug( "[SubchainPolicy] Matched #{actor} against #{inspect(match)} with subchain #{ inspect(subchain) }" ) subchain |> MRF.filter(message) else _e -> {:ok, message} end end @impl true def filter(message), do: {:ok, message} @impl true def describe, do: {:ok, %{}} end