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(%{"type" => "Create"} = object) do
  11     user = User.get_cached_by_ap_id(object["actor"])
  12     public = "https://www.w3.org/ns/activitystreams#Public"
  13
  14     # Determine visibility
  15     visibility =
  16       cond do
  17         public in object["to"] -> "public"
  18         public in object["cc"] -> "unlisted"
  19         user.follower_address in object["to"] -> "followers"
  20         true -> "direct"
  21       end
  22
  23     case visibility do
  24       "public" ->
  25         {:ok, object}
  26
  27       "unlisted" ->
  28         {:ok, object}
  29
  30       "followers" ->
  31         with true <- @allow_followersonly do
  32           {:ok, object}
  33         else
  34           _e -> {:reject, nil}
  35         end
  36
  37       "direct" ->
  38         with true <- @allow_direct do
  39           {:ok, object}
  40         else
  41           _e -> {:reject, nil}
  42         end
  43     end
  44   end
  45
  46   @impl true
  47   def filter(object), do: {:ok, object}
  48 end