For 9.0 we don't have the possibility to store calendar and addressbook properties on a per-user basis and therefore we simple don't allow this for now

1 files changed, 8 insertions, 0 deletions

diff --git a/apps/dav/lib/caldav/calendar.php b/apps/dav/lib/caldav/calendar.php
index 6b34d570eb3..738b366b08d 100644
--- a/apps/dav/lib/caldav/calendar.php
+++ b/apps/dav/lib/caldav/calendar.php
@@ -4,6 +4,7 @@ namespace OCA\DAV\CalDAV;
 
 use OCA\DAV\DAV\Sharing\IShareable;
 use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\PropPatch;
 
 class Calendar extends \Sabre\CalDAV\Calendar implements IShareable {
 
@@ -103,4 +104,11 @@ class Calendar extends \Sabre\CalDAV\Calendar implements IShareable {
 		}
 		parent::delete();
 	}
+
+	function propPatch(PropPatch $propPatch) {
+		if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
+			throw new Forbidden();
+		}
+		parent::propPatch($propPatch);
+	}
 }