Calendar: When events are private but writable. Posting the event wit…

…h CalDAV will not change the title or description

CHANGELOG.md

@@ -1,3 +1,4 @@
+- Calendar: When events are private but writable. Posting the event with CalDAV will not change the title or description
 - Files: Detail panel will change to folder when a different folder is selected in the tree.
 - Core: Fixed checkbox custom field filter to match null values when client sends 'false'
 - ldapauth: Create postfixadmin account if domain matches serverclient domain

www/modules/calendar/model/Event.php

@@ -1761,10 +1761,20 @@ public function importVObject(Sabre\VObject\Component $vobject, $attributes=arra
 		$uid = (string) $vobject->uid;
 		if(!empty($uid))
 			$this->uuid = $uid;
-
-		$this->name = (string) $vobject->summary;
-		if(empty($this->name))
-			$this->name = \GO::t("Unnamed");
+
+		if(!$this->isPrivate() || $this->user_id === go()->getUserId()) {
+			$this->name = (string)$vobject->summary;
+			if (empty($this->name))
+				$this->name = \GO::t("Unnamed");
+
+			if ($vobject->description)
+				$this->description = (string)$vobject->description;
+		} else if(!$this->isNew()) {
+			// the caldav client is posting the data with name and content removed.
+			// Put it back into the vobject for the vobject cache.
+			$vobject->summary = $this->name;
+			$vobject->description = $this->description;
+		}
 
 		$dtstart = $vobject->dtstart ? $vobject->dtstart->getDateTime() : new \DateTime();
 		$dtend = $vobject->dtend ? $vobject->dtend->getDateTime() : new \DateTime();
@@ -1807,10 +1817,6 @@ public function importVObject(Sabre\VObject\Component $vobject, $attributes=arra
 		}
 		if($this->end_time<=$this->start_time)
 			$this->end_time=$this->start_time+3600;
-
-
-		if($vobject->description)
-			$this->description = (string) $vobject->description;
 
 
 		if((string) $vobject->rrule != ""){