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.Types
15 alias Pleroma.Web.ActivityPub.ObjectValidators.ChatMessageValidator
16 alias Pleroma.Web.ActivityPub.ObjectValidators.CreateChatMessageValidator
17 alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
19 @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
20 def validate(object, meta)
22 def validate(%{"type" => "Like"} = object, meta) do
25 |> LikeValidator.cast_and_validate()
26 |> Ecto.Changeset.apply_action(:insert) do
27 object = stringify_keys(object)
32 def validate(%{"type" => "ChatMessage"} = object, meta) do
35 |> ChatMessageValidator.cast_and_validate()
36 |> Ecto.Changeset.apply_action(:insert) do
37 object = stringify_keys(object)
42 def validate(%{"type" => "Create", "object" => object} = create_activity, meta) do
43 with {:ok, object_data} <- cast_and_apply(object),
44 meta = Keyword.put(meta, :object_data, object_data |> stringify_keys),
45 {:ok, create_activity} <-
47 |> CreateChatMessageValidator.cast_and_validate(meta)
48 |> Ecto.Changeset.apply_action(:insert) do
49 create_activity = stringify_keys(create_activity)
50 {:ok, create_activity, meta}
54 def cast_and_apply(%{"type" => "ChatMessage"} = object) do
55 ChatMessageValidator.cast_and_apply(object)
58 def cast_and_apply(o), do: {:error, {:validator_not_set, o}}
60 def stringify_keys(%{__struct__: _} = object) do
66 def stringify_keys(object) do
68 |> Map.new(fn {key, val} -> {to_string(key), val} end)
71 def fetch_actor(object) do
72 with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do
73 User.get_or_fetch_by_ap_id(actor)
77 def fetch_actor_and_object(object) do
79 Object.normalize(object["object"])