diff options
Diffstat (limited to 'lib/pleroma/web/activity_pub/object_validators/update_validator.ex')
-rw-r--r-- | lib/pleroma/web/activity_pub/object_validators/update_validator.ex | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/lib/pleroma/web/activity_pub/object_validators/update_validator.ex b/lib/pleroma/web/activity_pub/object_validators/update_validator.ex new file mode 100644 index 000000000..b4ba5ede0 --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/update_validator.ex @@ -0,0 +1,59 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.ObjectValidators.UpdateValidator do + use Ecto.Schema + + 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(:actor, ObjectValidators.ObjectID) + field(:to, ObjectValidators.Recipients, default: []) + field(:cc, ObjectValidators.Recipients, default: []) + # In this case, we save the full object in this activity instead of just a + # reference, so we can always see what was actually changed by this. + field(:object, :map) + end + + def cast_data(data) do + %__MODULE__{} + |> cast(data, __schema__(:fields)) + end + + def validate_data(cng) do + cng + |> validate_required([:id, :type, :actor, :to, :cc, :object]) + |> validate_inclusion(:type, ["Update"]) + |> validate_actor_presence() + |> validate_updating_rights() + end + + def cast_and_validate(data) do + data + |> cast_data + |> validate_data + end + + # For now we only support updating users, and here the rule is easy: + # object id == actor id + def validate_updating_rights(cng) do + with actor = get_field(cng, :actor), + object = get_field(cng, :object), + {:ok, object_id} <- ObjectValidators.ObjectID.cast(object), + true <- actor == object_id do + cng + else + _e -> + cng + |> add_error(:object, "Can't be updated by this actor") + end + end +end |