CalDavBackend: check if timerange is array before accessing

Signed-off-by: Simon Spannagel <simonspa@kth.se>

diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index 913261287216df49ab67d608f0a57cb3bc1b2f20..82c14086833bf5cfeefda9fa8be0ff8eb2bf68cd 100644 (file)
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -16,6 +16,7 @@
  * @author Thomas Citharel <nextcloud@tcit.fr>
  * @author Thomas Müller <thomas.mueller@tmit.eu>
  * @author Vinicius Cubas Brand <vinicius@eita.org.br>
+ * @author Simon Spannagel <simonspa@kth.se>
  *
  * @license AGPL-3.0
  *
@@ -1364,7 +1365,7 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
                                $requirePostFilter = false;
                        }
                        // There was a time-range filter
-                       if ($componentType === 'VEVENT' && isset($filters['comp-filters'][0]['time-range'])) {
+                       if ($componentType === 'VEVENT' && isset($filters['comp-filters'][0]['time-range']) && is_array($filters['comp-filters'][0]['time-range'])) {
                                $timeRange = $filters['comp-filters'][0]['time-range'];
 
                                // If start time OR the end time is not specified, we can do a