git.squeep.com Git - akkoma/blob - lib/pleroma/web/activity_pub/object_validators/delete_validator.ex

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do
   6   use Ecto.Schema
   7
   8   alias Pleroma.Activity
   9   alias Pleroma.EctoType.ActivityPub.ObjectValidators
  10
  11   import Ecto.Changeset
  12   import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
  13
  14   @primary_key false
  15
  16   embedded_schema do
  17     field(:id, ObjectValidators.ObjectID, primary_key: true)
  18     field(:type, :string)
  19     field(:actor, ObjectValidators.ObjectID)
  20     field(:to, ObjectValidators.Recipients, default: [])
  21     field(:cc, ObjectValidators.Recipients, default: [])
  22     field(:deleted_activity_id, ObjectValidators.ObjectID)
  23     field(:object, ObjectValidators.ObjectID)
  24   end
  25
  26   def cast_data(data) do
  27     %__MODULE__{}
  28     |> cast(data, __schema__(:fields))
  29   end
  30
  31   def add_deleted_activity_id(cng) do
  32     object =
  33       cng
  34       |> get_field(:object)
  35
  36     with %Activity{id: id} <- Activity.get_create_by_object_ap_id(object) do
  37       cng
  38       |> put_change(:deleted_activity_id, id)
  39     else
  40       _ -> cng
  41     end
  42   end
  43
  44   @deletable_types ~w{
  45     Answer
  46     Article
  47     Audio
  48     ChatMessage
  49     Event
  50     Note
  51     Page
  52     Question
  53     Tombstone
  54     Video
  55   }
  56   def validate_data(cng) do
  57     cng
  58     |> validate_required([:id, :type, :actor, :to, :cc, :object])
  59     |> validate_inclusion(:type, ["Delete"])
  60     |> validate_actor_presence()
  61     |> validate_modification_rights()
  62     |> validate_object_or_user_presence(allowed_types: @deletable_types)
  63     |> add_deleted_activity_id()
  64   end
  65
  66   def do_not_federate?(cng) do
  67     !same_domain?(cng)
  68   end
  69
  70   def cast_and_validate(data) do
  71     data
  72     |> cast_data
  73     |> validate_data
  74   end
  75 end