git.squeep.com Git - akkoma/blob - lib/pleroma/web/activity_pub/mrf/reject_non_public.ex

   1 defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublic do
   2   alias Pleroma.User
   3   @behaviour Pleroma.Web.ActivityPub.MRF
   4
   5   @mrf_rejectnonpublic Application.get_env(:pleroma, :mrf_rejectnonpublic)
   6   @allow_followersonly Keyword.get(@mrf_rejectnonpublic, :allow_followersonly)
   7   @allow_direct Keyword.get(@mrf_rejectnonpublic, :allow_direct)
   8
   9   @impl true
  10   def filter(object) do
  11     if object["type"] == "Create" do
  12       user = User.get_cached_by_ap_id(object["actor"])
  13       public = "https://www.w3.org/ns/activitystreams#Public"
  14
  15       # Determine visibility
  16       visibility =
  17         cond do
  18           public in object["to"] -> "public"
  19           public in object["cc"] -> "unlisted"
  20           user.follower_address in object["to"] -> "followers"
  21           true -> "direct"
  22         end
  23
  24       case visibility do
  25         "public" ->
  26           {:ok, object}
  27
  28         "unlisted" ->
  29           {:ok, object}
  30
  31         "followers" ->
  32           with true <- @allow_followersonly do
  33             {:ok, object}
  34           else
  35             _e -> {:reject, nil}
  36           end
  37
  38         "direct" ->
  39           with true <- @allow_direct do
  40             {:ok, object}
  41           else
  42             _e -> {:reject, nil}
  43           end
  44       end
  45     else
  46       {:ok, object}
  47     end
  48   end
  49 end