Merge pull request #32191 from nextcloud/handle-calendar-reminders-wi…

…th-infinite-recurrence

Handle processing reminders for calendar objects with an infinite number of recurrences

apps/dav/lib/CalDAV/Reminder/ReminderService.php

@@ -44,6 +44,7 @@
 use Sabre\VObject\InvalidDataException;
 use Sabre\VObject\ParseException;
 use Sabre\VObject\Recur\EventIterator;
+use Sabre\VObject\Recur\MaxInstancesExceededException;
 use Sabre\VObject\Recur\NoInstancesException;
 use function strcasecmp;
 
@@ -247,6 +248,10 @@ public function onCalendarObjectCreate(array $objectData):void {
 				// instance. We are skipping this event from the output
 				// entirely.
 				return;
+			} catch (MaxInstancesExceededException $e) {
+				// The event has more than 3500 recurring-instances
+				// so we can ignore it
+				return;
 			}
 
 			while ($iterator->valid() && count($processedAlarms) < count($masterAlarms)) {