# Pleroma: A lightweight social networking server # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.ActivityPub.ObjectValidator do @moduledoc """ This module is responsible for validating an object (which can be an activity) and checking if it is both well formed and also compatible with our view of the system. """ alias Pleroma.Object alias Pleroma.User alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator alias Pleroma.Web.ActivityPub.ObjectValidators.Types @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()} def validate(object, meta) def validate(%{"type" => "Delete"} = object, meta) do with {:ok, object} <- object |> DeleteValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do object = stringify_keys(object) {:ok, object, meta} end end def validate(%{"type" => "Like"} = object, meta) do with {:ok, object} <- object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do object = stringify_keys(object |> Map.from_struct()) {:ok, object, meta} end end def stringify_keys(%{__struct__: _} = object) do object |> Map.from_struct() |> stringify_keys end def stringify_keys(object) do object |> Map.new(fn {key, val} -> {to_string(key), val} end) end def fetch_actor(object) do with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do User.get_or_fetch_by_ap_id(actor) end end def fetch_actor_and_object(object) do fetch_actor(object) Object.normalize(object["object"]) :ok end end