+ # Task this handles
+ # - Follows
+ # - Sends a notification
+ @impl true
+ def handle(
+ %{
+ data: %{
+ "actor" => actor,
+ "type" => "Accept",
+ "object" => follow_activity_id
+ }
+ } = object,
+ meta
+ ) do
+ with %Activity{actor: follower_id} = follow_activity <-
+ Activity.get_by_ap_id(follow_activity_id),
+ %User{} = followed <- User.get_cached_by_ap_id(actor),
+ %User{} = follower <- User.get_cached_by_ap_id(follower_id),
+ {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
+ {:ok, _follower, followed} <-
+ FollowingRelationship.update(follower, followed, :follow_accept) do
+ Notification.update_notification_type(followed, follow_activity)
+ end
+
+ {:ok, object, meta}
+ end
+
+ # Task this handles
+ # - Rejects all existing follow activities for this person
+ # - Updates the follow state
+ # - Dismisses notification
+ @impl true
+ def handle(
+ %{
+ data: %{
+ "actor" => actor,
+ "type" => "Reject",
+ "object" => follow_activity_id
+ }
+ } = object,
+ meta
+ ) do
+ with %Activity{actor: follower_id} = follow_activity <-
+ Activity.get_by_ap_id(follow_activity_id),
+ %User{} = followed <- User.get_cached_by_ap_id(actor),
+ %User{} = follower <- User.get_cached_by_ap_id(follower_id),
+ {:ok, _follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject") do
+ FollowingRelationship.update(follower, followed, :follow_reject)
+ Notification.dismiss(follow_activity)
+ end
+
+ {:ok, object, meta}
+ end
+
+ # Tasks this handle
+ # - Follows if possible
+ # - Sends a notification
+ # - Generates accept or reject if appropriate
+ @impl true
+ def handle(
+ %{
+ data: %{
+ "id" => follow_id,
+ "type" => "Follow",
+ "object" => followed_user,
+ "actor" => following_user
+ }
+ } = object,
+ meta
+ ) do
+ with %User{} = follower <- User.get_cached_by_ap_id(following_user),
+ %User{} = followed <- User.get_cached_by_ap_id(followed_user),
+ {_, {:ok, _, _}, _, _} <-
+ {:following, User.follow(follower, followed, :follow_pending), follower, followed} do
+ if followed.local && !followed.is_locked do
+ {:ok, accept_data, _} = Builder.accept(followed, object)
+ {:ok, _activity, _} = Pipeline.common_pipeline(accept_data, local: true)
+ end
+ else
+ {:following, {:error, _}, _follower, followed} ->
+ {:ok, reject_data, _} = Builder.reject(followed, object)
+ {:ok, _activity, _} = Pipeline.common_pipeline(reject_data, local: true)
+
+ _ ->
+ nil
+ end
+
+ {:ok, notifications} = Notification.create_notifications(object, do_send: false)
+
+ meta =
+ meta
+ |> add_notifications(notifications)
+
+ updated_object = Activity.get_by_ap_id(follow_id)
+
+ {:ok, updated_object, meta}
+ end
+
+ # Tasks this handles:
+ # - Unfollow and block
+ @impl true
+ def handle(
+ %{data: %{"type" => "Block", "object" => blocked_user, "actor" => blocking_user}} =
+ object,
+ meta
+ ) do
+ with %User{} = blocker <- User.get_cached_by_ap_id(blocking_user),
+ %User{} = blocked <- User.get_cached_by_ap_id(blocked_user) do
+ User.block(blocker, blocked)
+ end
+
+ {:ok, object, meta}
+ end
+
+ # Tasks this handles:
+ # - Update the user
+ #
+ # For a local user, we also get a changeset with the full information, so we
+ # can update non-federating, non-activitypub settings as well.
+ @impl true
+ def handle(%{data: %{"type" => "Update", "object" => updated_object}} = object, meta) do
+ if changeset = Keyword.get(meta, :user_update_changeset) do
+ changeset
+ |> User.update_and_set_cache()
+ else
+ {:ok, new_user_data} = ActivityPub.user_data_from_user_object(updated_object)
+
+ User.get_by_ap_id(updated_object["id"])
+ |> User.remote_user_changeset(new_user_data)
+ |> User.update_and_set_cache()
+ end
+
+ {:ok, object, meta}
+ end
+