+ |> validate_announcable()
+ end
+
+ defp validate_announcable(cng) do
+ with actor when is_binary(actor) <- get_field(cng, :actor),
+ object when is_binary(object) <- get_field(cng, :object),
+ %User{} = actor <- User.get_cached_by_ap_id(actor),
+ %Object{} = object <- Object.get_cached_by_ap_id(object),
+ false <- Visibility.is_public?(object) do
+ same_actor = object.data["actor"] == actor.ap_id
+ recipients = get_field(cng, :to) ++ get_field(cng, :cc)
+ local_public = Utils.as_local_public()
+
+ is_public =
+ Enum.member?(recipients, Pleroma.Constants.as_public()) or
+ Enum.member?(recipients, local_public)
+
+ cond do
+ same_actor && is_public ->
+ cng
+ |> add_error(:actor, "can not announce this object publicly")
+
+ !same_actor ->
+ cng
+ |> add_error(:actor, "can not announce this object")
+
+ true ->
+ cng
+ end
+ else
+ _ -> cng
+ end