undo_validator.ex (1724B)
- # Pleroma: A lightweight social networking server
- # Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
- # SPDX-License-Identifier: AGPL-3.0-only
- defmodule Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator do
- use Ecto.Schema
- alias Pleroma.Activity
- alias Pleroma.User
- import Ecto.Changeset
- import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
- @primary_key false
- embedded_schema do
- quote do
- unquote do
- import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
- message_fields()
- activity_fields()
- end
- end
- end
- def cast_and_validate(data) do
- data
- |> cast_data()
- |> validate_data()
- end
- def cast_data(data) do
- %__MODULE__{}
- |> changeset(data)
- end
- def changeset(struct, data) do
- struct
- |> cast(data, __schema__(:fields))
- end
- defp validate_data(data_cng) do
- data_cng
- |> validate_inclusion(:type, ["Undo"])
- |> validate_required([:id, :type, :object, :actor, :to, :cc])
- |> validate_undo_actor(:actor)
- |> validate_object_presence()
- |> validate_undo_rights()
- end
- def validate_undo_rights(cng) do
- actor = get_field(cng, :actor)
- object = get_field(cng, :object)
- with %Activity{data: %{"actor" => object_actor}} <- Activity.get_by_ap_id(object),
- true <- object_actor != actor do
- cng
- |> add_error(:actor, "not the same as object actor")
- else
- _ -> cng
- end
- end
- defp validate_undo_actor(cng, field_name) do
- validate_change(cng, field_name, fn field_name, actor ->
- case User.get_cached_by_ap_id(actor) do
- %User{} -> []
- _ -> [{field_name, "can't find user"}]
- end
- end)
- end
- end