1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
7 @behaviour Pleroma.Web.ActivityPub.MRF
9 defp check_accept(%{host: actor_host} = _actor_info, object) do
10 accepts = Pleroma.Config.get([:mrf_simple, :accept])
13 accepts == [] -> {:ok, object}
14 actor_host == Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
15 Enum.member?(accepts, actor_host) -> {:ok, object}
16 true -> {:reject, nil}
20 defp check_reject(%{host: actor_host} = _actor_info, object) do
21 if Enum.member?(Pleroma.Config.get([:mrf_simple, :reject]), actor_host) do
28 defp check_media_removal(
29 %{host: actor_host} = _actor_info,
30 %{"type" => "Create", "object" => %{"attachment" => child_attachment}} = object
32 when length(child_attachment) > 0 do
34 if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_removal]), actor_host) do
35 child_object = Map.delete(object["object"], "attachment")
36 Map.put(object, "object", child_object)
44 defp check_media_removal(_actor_info, object), do: {:ok, object}
46 defp check_media_nsfw(
47 %{host: actor_host} = _actor_info,
50 "object" => %{"attachment" => child_attachment} = child_object
53 when length(child_attachment) > 0 do
55 if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_nsfw]), actor_host) do
56 tags = (child_object["tag"] || []) ++ ["nsfw"]
57 child_object = Map.put(child_object, "tags", tags)
58 child_object = Map.put(child_object, "sensitive", true)
59 Map.put(object, "object", child_object)
67 defp check_media_nsfw(_actor_info, object), do: {:ok, object}
69 defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
73 Pleroma.Config.get([:mrf_simple, :federated_timeline_removal]),
76 user <- User.get_cached_by_ap_id(object["actor"]),
77 true <- "https://www.w3.org/ns/activitystreams#Public" in object["to"],
78 true <- user.follower_address in object["cc"] do
80 List.delete(object["to"], "https://www.w3.org/ns/activitystreams#Public") ++
81 [user.follower_address]
84 List.delete(object["cc"], user.follower_address) ++
85 ["https://www.w3.org/ns/activitystreams#Public"]
99 actor_info = URI.parse(object["actor"])
101 with {:ok, object} <- check_accept(actor_info, object),
102 {:ok, object} <- check_reject(actor_info, object),
103 {:ok, object} <- check_media_removal(actor_info, object),
104 {:ok, object} <- check_media_nsfw(actor_info, object),
105 {:ok, object} <- check_ftl_removal(actor_info, object) do