101 lines
2.2 KiB
Elixir
101 lines
2.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do
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use Ecto.Schema
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alias Pleroma.Activity
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alias Pleroma.User
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alias Pleroma.Web.ActivityPub.ObjectValidators.Types
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import Ecto.Changeset
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import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
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@primary_key false
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embedded_schema do
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field(:id, Types.ObjectID, primary_key: true)
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field(:type, :string)
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field(:actor, Types.ObjectID)
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field(:to, Types.Recipients, default: [])
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field(:cc, Types.Recipients, default: [])
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field(:deleted_activity_id, Types.ObjectID)
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field(:object, Types.ObjectID)
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end
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def cast_data(data) do
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%__MODULE__{}
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|> cast(data, __schema__(:fields))
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end
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def add_deleted_activity_id(cng) do
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object =
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cng
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|> get_field(:object)
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with %Activity{id: id} <- Activity.get_create_by_object_ap_id(object) do
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cng
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|> put_change(:deleted_activity_id, id)
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else
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_ -> cng
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end
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end
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@deletable_types ~w{
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Answer
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Article
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Audio
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Event
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Note
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Page
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Question
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Video
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Tombstone
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}
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def validate_data(cng) do
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cng
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|> validate_required([:id, :type, :actor, :to, :cc, :object])
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|> validate_inclusion(:type, ["Delete"])
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|> validate_actor_presence()
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|> validate_deletion_rights()
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|> validate_object_or_user_presence(allowed_types: @deletable_types)
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|> add_deleted_activity_id()
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end
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def do_not_federate?(cng) do
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!same_domain?(cng)
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end
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defp same_domain?(cng) do
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actor_uri =
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cng
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|> get_field(:actor)
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|> URI.parse()
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object_uri =
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cng
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|> get_field(:object)
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|> URI.parse()
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object_uri.host == actor_uri.host
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end
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def validate_deletion_rights(cng) do
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actor = User.get_cached_by_ap_id(get_field(cng, :actor))
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if User.superuser?(actor) || same_domain?(cng) do
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cng
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else
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cng
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|> add_error(:actor, "is not allowed to delete object")
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end
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end
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def cast_and_validate(data) do
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data
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|> cast_data
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|> validate_data
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end
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end
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