From 3a8c4230be2d7311ca012f09538cdad2147fae75 Mon Sep 17 00:00:00 2001
From: Georg Ehrke <developer@georgehrke.com>
Date: Mon, 21 Nov 2016 21:58:24 +0100
Subject: [PATCH] fix PropPatch requests on calendars

Signed-off-by: Georg Ehrke <developer@georgehrke.com>
---
 apps/dav/lib/CalDAV/Calendar.php            |  2 +-
 apps/dav/tests/unit/CalDAV/CalendarTest.php | 25 +++++++++++++++------
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/apps/dav/lib/CalDAV/Calendar.php b/apps/dav/lib/CalDAV/Calendar.php
index 9fedbe6f91..ef8e21be83 100644
--- a/apps/dav/lib/CalDAV/Calendar.php
+++ b/apps/dav/lib/CalDAV/Calendar.php
@@ -177,7 +177,7 @@ class Calendar extends \Sabre\CalDAV\Calendar implements IShareable {
 	function propPatch(PropPatch $propPatch) {
 		$mutations = $propPatch->getMutations();
 		// If this is a shared calendar, the user can only change the enabled property, to hide it.
-		if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal']) && (sizeof($mutations) !== 1 || !isset($mutations['{http://owncloud.org/ns}calendar-enabled']))) {
+		if ($this->isShared() && (sizeof($mutations) !== 1 || !isset($mutations['{http://owncloud.org/ns}calendar-enabled']))) {
 			throw new Forbidden();
 		}
 		parent::propPatch($propPatch);
diff --git a/apps/dav/tests/unit/CalDAV/CalendarTest.php b/apps/dav/tests/unit/CalDAV/CalendarTest.php
index e585a23a9a..d0fb2d1924 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarTest.php
@@ -106,29 +106,40 @@ class CalendarTest extends TestCase {
 
 	public function dataPropPatch() {
 		return [
-			[[], true],
-			[[
+			['user1', 'user2', [], true],
+			['user1', 'user2', [
 				'{http://owncloud.org/ns}calendar-enabled' => true,
 			], false],
-			[[
+			['user1', 'user2', [
 				'{DAV:}displayname' => true,
 			], true],
-			[[
+			['user1', 'user2', [
 				'{DAV:}displayname' => true,
 				'{http://owncloud.org/ns}calendar-enabled' => true,
 			], true],
+			['user1', 'user1', [], false],
+			['user1', 'user1', [
+				'{http://owncloud.org/ns}calendar-enabled' => true,
+			], false],
+			['user1', 'user1', [
+				'{DAV:}displayname' => true,
+			], false],
+			['user1', 'user1', [
+				'{DAV:}displayname' => true,
+				'{http://owncloud.org/ns}calendar-enabled' => true,
+			], false],
 		];
 	}
 
 	/**
 	 * @dataProvider dataPropPatch
 	 */
-	public function testPropPatch($mutations, $throws) {
+	public function testPropPatch($ownerPrincipal, $principalUri, $mutations, $throws) {
 		/** @var \PHPUnit_Framework_MockObject_MockObject | CalDavBackend $backend */
 		$backend = $this->getMockBuilder(CalDavBackend::class)->disableOriginalConstructor()->getMock();
 		$calendarInfo = [
-			'{http://owncloud.org/ns}owner-principal' => 'user1',
-			'principaluri' => 'user2',
+			'{http://owncloud.org/ns}owner-principal' => $ownerPrincipal,
+			'principaluri' => $principalUri,
 			'id' => 666,
 			'uri' => 'default'
 		];