# 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.RejectNonPublic do @moduledoc "Rejects non-public (followers-only, direct) activities" alias Pleroma.Config alias Pleroma.User @behaviour Pleroma.Web.ActivityPub.MRF require Pleroma.Constants @impl true def filter(%{"type" => "Create"} = object) do user = User.get_cached_by_ap_id(object["actor"]) # Determine visibility visibility = cond do Pleroma.Constants.as_public() in object["to"] -> "public" Pleroma.Constants.as_public() in object["cc"] -> "unlisted" user.follower_address in object["to"] -> "followers" true -> "direct" end policy = Config.get(:mrf_rejectnonpublic) cond do visibility in ["public", "unlisted"] -> {:ok, object} visibility == "followers" and Keyword.get(policy, :allow_followersonly) -> {:ok, object} visibility == "direct" and Keyword.get(policy, :allow_direct) -> {:ok, object} true -> {:reject, "[RejectNonPublic] visibility: #{visibility}"} end end @impl true def filter(object), do: {:ok, object} @impl true def describe, do: {:ok, %{mrf_rejectnonpublic: Config.get(:mrf_rejectnonpublic) |> Enum.into(%{})}} @impl true def config_description do %{ key: :mrf_rejectnonpublic, related_policy: "Pleroma.Web.ActivityPub.MRF.RejectNonPublic", description: "RejectNonPublic drops posts with non-public visibility settings.", label: "MRF Reject Non Public", children: [ %{ key: :allow_followersonly, label: "Allow followers-only", type: :boolean, description: "Whether to allow followers-only posts" }, %{ key: :allow_direct, type: :boolean, description: "Whether to allow direct messages" } ] } end end