+ |> validate_announcable()
+ end
+
+ def 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
+ is_public = Pleroma.Constants.as_public() in (get_field(cng, :to) ++ get_field(cng, :cc))
+
+ 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