From d821afb418b0705353e6498fe5c4cc966a0fcba9 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Wed, 28 Sep 2022 16:32:17 +0000
Subject: [PATCH] Added logging of unexpected follow messages

---
 src/Protocol/ActivityPub/Receiver.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Protocol/ActivityPub/Receiver.php b/src/Protocol/ActivityPub/Receiver.php
index 0cdbe82fc7..57f1089a36 100644
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@@ -852,7 +852,11 @@ class Receiver
 
 			case 'as:Accept':
 				if ($object_data['object_type'] == 'as:Follow') {
-					ActivityPub\Processor::acceptFollowUser($object_data);
+					if (!empty($object_data['object_actor'])) {
+						ActivityPub\Processor::acceptFollowUser($object_data);
+					} else {
+						Logger::debug('Unhandled "accept follow" message.', ['object_data' => $object_data]);
+					}
 				} elseif (in_array($object_data['object_type'], self::CONTENT_TYPES)) {
 					ActivityPub\Processor::createActivity($object_data, Activity::ATTEND);
 				} else {