# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do
use Ecto.Schema
- alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+ alias Pleroma.Activity
+ alias Pleroma.EctoType.ActivityPub.ObjectValidators
+ alias Pleroma.User
import Ecto.Changeset
import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@primary_key false
embedded_schema do
- field(:id, Types.ObjectID, primary_key: true)
- field(:type, :string)
- field(:actor, Types.ObjectID)
- field(:to, Types.Recipients, default: [])
- field(:cc, Types.Recipients, default: [])
- field(:object, Types.ObjectID)
+ quote do
+ unquote do
+ import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
+ message_fields()
+ activity_fields()
+ end
+ end
+
+ field(:deleted_activity_id, ObjectValidators.ObjectID)
end
def cast_data(data) do
|> cast(data, __schema__(:fields))
end
- def validate_data(cng) do
- cng
- |> validate_required([:id, :type, :actor, :to, :cc, :object])
- |> validate_inclusion(:type, ["Delete"])
- |> validate_same_domain()
- |> validate_object_or_user_presence()
- end
-
- def validate_same_domain(cng) do
- actor_domain =
- cng
- |> get_field(:actor)
- |> URI.parse()
- |> (& &1.host).()
-
- object_domain =
+ def add_deleted_activity_id(cng) do
+ object =
cng
|> get_field(:object)
- |> URI.parse()
- |> (& &1.host).()
- if object_domain != actor_domain do
+ with %Activity{id: id} <- Activity.get_create_by_object_ap_id(object) do
cng
- |> add_error(:actor, "is not allowed to delete object")
+ |> put_change(:deleted_activity_id, id)
else
- cng
+ _ -> cng
end
end
+ @deletable_types ~w{
+ Answer
+ Article
+ Audio
+ ChatMessage
+ Event
+ Note
+ Page
+ Question
+ Tombstone
+ Video
+ }
+ defp validate_data(cng) do
+ cng
+ |> validate_required([:id, :type, :actor, :to, :cc, :object])
+ |> validate_inclusion(:type, ["Delete"])
+ |> validate_delete_actor(:actor)
+ |> validate_modification_rights()
+ |> validate_object_or_user_presence(allowed_types: @deletable_types)
+ |> add_deleted_activity_id()
+ end
+
+ def do_not_federate?(cng) do
+ !same_domain?(cng)
+ end
+
def cast_and_validate(data) do
data
|> cast_data
|> validate_data
end
+
+ defp validate_delete_actor(cng, field_name) do
+ validate_change(cng, field_name, fn field_name, actor ->
+ case User.get_cached_by_ap_id(actor) do
+ %User{} -> []
+ _ -> [{field_name, "can't find user"}]
+ end
+ end)
+ end
end