Fix "Undefined index: reply-to-id"

diff --git a/src/Protocol/ActivityPub/Processor.php b/src/Protocol/ActivityPub/Processor.php
index f4892b6c0fb3143b2bf14d73235656b9b2a52dff..ef4e1097642ef3a6a8bf75547322d8ec27b22eb3 100644 (file)
--- a/src/Protocol/ActivityPub/Processor.php
+++ b/src/Protocol/ActivityPub/Processor.php
@@ -26,6 +26,7 @@ use Friendica\Content\Text\HTML;
 use Friendica\Content\Text\Markdown;
 use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
+use Friendica\Core\System;
 use Friendica\Database\DBA;
 use Friendica\DI;
 use Friendica\Model\APContact;
@@ -191,6 +192,10 @@ class Processor
         */
        public static function createItem($activity)
        {
+               if (empty($activity['reply-to-id'])) {
+                       $activity['reply-to-id'] = $activity['id'];
+               }
+
                $item = [];
                $item['verb'] = Activity::POST;
                $item['thr-parent'] = $activity['reply-to-id'];