1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Web.ActivityPub.ObjectValidator do
7 This module is responsible for validating an object (which can be an activity)
8 and checking if it is both well formed and also compatible with our view of
14 alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator
15 alias Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator
16 alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
17 alias Pleroma.Web.ActivityPub.ObjectValidators.Types
18 alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
20 @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
21 def validate(object, meta)
23 def validate(%{"type" => "Undo"} = object, meta) do
26 |> UndoValidator.cast_and_validate()
27 |> Ecto.Changeset.apply_action(:insert) do
28 object = stringify_keys(object)
33 def validate(%{"type" => "Delete"} = object, meta) do
34 with cng <- DeleteValidator.cast_and_validate(object),
35 do_not_federate <- DeleteValidator.do_not_federate?(cng),
36 {:ok, object} <- Ecto.Changeset.apply_action(cng, :insert) do
37 object = stringify_keys(object)
38 meta = Keyword.put(meta, :do_not_federate, do_not_federate)
43 def validate(%{"type" => "Like"} = object, meta) do
45 object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do
46 object = stringify_keys(object |> Map.from_struct())
51 def validate(%{"type" => "EmojiReact"} = object, meta) do
54 |> EmojiReactValidator.cast_and_validate()
55 |> Ecto.Changeset.apply_action(:insert) do
56 object = stringify_keys(object |> Map.from_struct())
61 def stringify_keys(%{__struct__: _} = object) do
67 def stringify_keys(object) do
69 |> Map.new(fn {key, val} -> {to_string(key), val} end)
72 def fetch_actor(object) do
73 with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do
74 User.get_or_fetch_by_ap_id(actor)
78 def fetch_actor_and_object(object) do
80 Object.normalize(object["object"])