akkoma/lib/pleroma/web/activity_pub/object_validator.ex

73 lines
2.2 KiB
Elixir
Raw Normal View History

# Pleroma: A lightweight social networking server
2020-03-26 14:37:42 +00:00
# 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
2019-10-23 10:18:05 +00:00
alias Pleroma.User
alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator
2019-10-23 10:18:05 +00:00
alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
2020-05-05 12:17:47 +00:00
alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
alias Pleroma.Web.ActivityPub.ObjectValidators.Types
@spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
def validate(object, meta)
2020-05-05 12:17:47 +00:00
def validate(%{"type" => "Undo"} = object, meta) do
with {:ok, object} <-
2020-05-07 12:52:37 +00:00
object
|> UndoValidator.cast_and_validate()
|> Ecto.Changeset.apply_action(:insert) do
object = stringify_keys(object)
2020-05-05 12:17:47 +00:00
{:ok, object, meta}
end
end
def validate(%{"type" => "Delete"} = object, meta) do
with cng <- DeleteValidator.cast_and_validate(object),
do_not_federate <- DeleteValidator.do_not_federate?(cng),
{:ok, object} <- Ecto.Changeset.apply_action(cng, :insert) do
object = stringify_keys(object)
meta = Keyword.put(meta, :do_not_federate, do_not_federate)
{: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
2020-04-30 12:13:08 +00:00
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
2020-04-30 12:13:08 +00:00
fetch_actor(object)
Object.normalize(object["object"])
:ok
end
end