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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator do
use Ecto.Schema
alias Pleroma.Activity
alias Pleroma.EctoType.ActivityPub.ObjectValidators
import Ecto.Changeset
import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@primary_key false
embedded_schema do
field(:id, ObjectValidators.ObjectID, primary_key: true)
field(:type, :string)
field(:object, ObjectValidators.ObjectID)
field(:actor, ObjectValidators.ObjectID)
field(:to, ObjectValidators.Recipients, default: [])
field(:cc, ObjectValidators.Recipients, default: [])
end
def cast_and_validate(data) do
data
|> cast_data()
|> validate_data()
end
def cast_data(data) do
%__MODULE__{}
|> changeset(data)
end
def changeset(struct, data) do
struct
|> cast(data, __schema__(:fields))
end
def validate_data(data_cng) do
data_cng
|> validate_inclusion(:type, ["Undo"])
|> validate_required([:id, :type, :object, :actor, :to, :cc])
|> validate_actor_presence()
|> validate_object_presence()
|> validate_undo_rights()
end
def validate_undo_rights(cng) do
actor = get_field(cng, :actor)
object = get_field(cng, :object)
with %Activity{data: %{"actor" => object_actor}} <- Activity.get_by_ap_id(object),
true <- object_actor != actor do
cng
|> add_error(:actor, "not the same as object actor")
else
_ -> cng
end
end
end
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