From fedfe8f7d6f78d77e9cbaf70fa8a9e8df38463f7 Mon Sep 17 00:00:00 2001 From: lain Date: Wed, 1 Jul 2020 12:26:07 +0200 Subject: ActivityPub: Handle clashing nicknames for the same ap id If we get a new user (identified by ap_id) that would have the same nickname as an existing user, give the existing user a nickname that is prepended with the user id, as this will never clash. This can happen when a user switches server software and that soft- ware generates ap ids in a different way. --- lib/pleroma/web/activity_pub/activity_pub.ex | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib') diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex index 05bd824f5..94117202c 100644 --- a/lib/pleroma/web/activity_pub/activity_pub.ex +++ b/lib/pleroma/web/activity_pub/activity_pub.ex @@ -1371,6 +1371,16 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end end + def maybe_handle_clashing_nickname(nickname) do + with %User{} = old_user <- User.get_by_nickname(nickname) do + Logger.info("Found an old user for #{nickname}, ap id is #{old_user.ap_id}, renaming.") + + old_user + |> User.remote_user_changeset(%{nickname: "#{old_user.id}.#{old_user.nickname}"}) + |> User.update_and_set_cache() + end + end + def make_user_from_ap_id(ap_id) do user = User.get_cached_by_ap_id(ap_id) @@ -1383,6 +1393,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do |> User.remote_user_changeset(data) |> User.update_and_set_cache() else + maybe_handle_clashing_nickname(data[:nickname]) + data |> User.remote_user_changeset() |> Repo.insert() -- cgit v1.2.3