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.AnnounceValidator
15 alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator
16 alias Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator
17 alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
18 alias Pleroma.Web.ActivityPub.ObjectValidators.Types
19 alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
21 @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
22 def validate(object, meta)
24 def validate(%{"type" => "Undo"} = object, meta) do
27 |> UndoValidator.cast_and_validate()
28 |> Ecto.Changeset.apply_action(:insert) do
29 object = stringify_keys(object)
34 def validate(%{"type" => "Delete"} = object, meta) do
35 with cng <- DeleteValidator.cast_and_validate(object),
36 do_not_federate <- DeleteValidator.do_not_federate?(cng),
37 {:ok, object} <- Ecto.Changeset.apply_action(cng, :insert) do
38 object = stringify_keys(object)
39 meta = Keyword.put(meta, :do_not_federate, do_not_federate)
44 def validate(%{"type" => "Like"} = object, meta) do
46 object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do
47 object = stringify_keys(object |> Map.from_struct())
52 def validate(%{"type" => "EmojiReact"} = object, meta) do
55 |> EmojiReactValidator.cast_and_validate()
56 |> Ecto.Changeset.apply_action(:insert) do
57 object = stringify_keys(object |> Map.from_struct())
62 def validate(%{"type" => "Announce"} = object, meta) do
65 |> AnnounceValidator.cast_and_validate()
66 |> Ecto.Changeset.apply_action(:insert) do
67 object = stringify_keys(object |> Map.from_struct())
72 def stringify_keys(%{__struct__: _} = object) do
78 def stringify_keys(object) do
80 |> Map.new(fn {key, val} -> {to_string(key), val} end)
83 def fetch_actor(object) do
84 with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do
85 User.get_or_fetch_by_ap_id(actor)
89 def fetch_actor_and_object(object) do
91 Object.normalize(object["object"], true)