+# 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
- @mrf_rejectnonpublic Application.get_env(:pleroma, :mrf_rejectnonpublic)
- @allow_followersonly Keyword.get(@mrf_rejectnonpublic, :allow_followersonly)
- @allow_direct Keyword.get(@mrf_rejectnonpublic, :allow_direct)
+ require Pleroma.Constants
@impl true
- def filter(object) do
- if object["type"] == "Create" do
- user = User.get_cached_by_ap_id(object["actor"])
- public = "https://www.w3.org/ns/activitystreams#Public"
-
- # Determine visibility
- visibility =
- cond do
- public in object["to"] -> "public"
- public in object["cc"] -> "unlisted"
- user.follower_address in object["to"] -> "followers"
- true -> "direct"
- end
-
- case visibility do
- "public" ->
- {:ok, object}
-
- "unlisted" ->
- {:ok, object}
-
- "followers" ->
- with true <- @allow_followersonly do
- {:ok, object}
- else
- _e -> {:reject, nil}
- end
-
- "direct" ->
- with true <- @allow_direct do
- {:ok, object}
- else
- _e -> {:reject, nil}
- end
+ 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
- else
- {:ok, object}
+
+ 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(%{})}}
end