Add owner to access list

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

.htaccess

@@ -78,3 +78,7 @@ Options -Indexes
 <IfModule pagespeed_module>
   ModPagespeed Off
 </IfModule>
+#### DO NOT CHANGE ANYTHING ABOVE THIS LINE ####
+
+ErrorDocument 403 /core/templates/403.php
+ErrorDocument 404 /core/templates/404.php

lib/private/Share20/Manager.php

@@ -1221,7 +1221,7 @@ class Manager implements IManager {
 			$path = $path->getParent();
 		}
 
-		$users = [];
+		$users = [$owner => 'null'];
 		$public = false;
 		$remote = false;
 		foreach ($shares as $share) {

tests/lib/Share20/ManagerTest.php

@@ -2811,7 +2811,7 @@ class ManagerTest extends \Test\TestCase {
 			->willReturn($userFolder);
 
 		$expected = [
-			'users' => ['user1', 'user2'],
+			'users' => ['owner', 'user1', 'user2'],
 			'public' => true,
 			'remote' => true,
 		];