diff options
Diffstat (limited to 'lib/pleroma/web/activity_pub/object_validators/add_remove_validator.ex')
-rw-r--r-- | lib/pleroma/web/activity_pub/object_validators/add_remove_validator.ex | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/pleroma/web/activity_pub/object_validators/add_remove_validator.ex b/lib/pleroma/web/activity_pub/object_validators/add_remove_validator.ex new file mode 100644 index 000000000..f885aabe4 --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/add_remove_validator.ex @@ -0,0 +1,77 @@ +# 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.AddRemoveValidator do + use Ecto.Schema + + import Ecto.Changeset + import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations + + require Pleroma.Constants + + alias Pleroma.EctoType.ActivityPub.ObjectValidators + alias Pleroma.User + + @primary_key false + + embedded_schema do + field(:id, ObjectValidators.ObjectID, primary_key: true) + field(:target) + field(:object, ObjectValidators.ObjectID) + field(:actor, ObjectValidators.ObjectID) + field(:type) + field(:to, ObjectValidators.Recipients, default: []) + field(:cc, ObjectValidators.Recipients, default: []) + end + + def cast_and_validate(data) do + {:ok, actor} = User.get_or_fetch_by_ap_id(data["actor"]) + + {:ok, actor} = maybe_refetch_user(actor) + + data + |> maybe_fix_data_for_mastodon(actor) + |> cast_data() + |> validate_data(actor) + end + + defp maybe_fix_data_for_mastodon(data, actor) do + # Mastodon sends pin/unpin objects without id, to, cc fields + data + |> Map.put_new("id", Pleroma.Web.ActivityPub.Utils.generate_activity_id()) + |> Map.put_new("to", [Pleroma.Constants.as_public()]) + |> Map.put_new("cc", [actor.follower_address]) + end + + defp cast_data(data) do + cast(%__MODULE__{}, data, __schema__(:fields)) + end + + defp validate_data(changeset, actor) do + changeset + |> validate_required([:id, :target, :object, :actor, :type, :to, :cc]) + |> validate_inclusion(:type, ~w(Add Remove)) + |> validate_actor_presence() + |> validate_collection_belongs_to_actor(actor) + |> validate_object_presence() + end + + defp validate_collection_belongs_to_actor(changeset, actor) do + validate_change(changeset, :target, fn :target, target -> + if target == actor.featured_address do + [] + else + [target: "collection doesn't belong to actor"] + end + end) + end + + defp maybe_refetch_user(%User{featured_address: address} = user) when is_binary(address) do + {:ok, user} + end + + defp maybe_refetch_user(%User{ap_id: ap_id}) do + Pleroma.Web.ActivityPub.Transmogrifier.upgrade_user_from_ap_id(ap_id) + end +end |