clear mount cache when deleting user

lib/private/files/config/usermountcache.php

@@ -195,4 +195,17 @@ class UserMountCache implements IUserMountCache {
 
 		return array_map([$this, 'dbRowToMountInfo'], $rows);
 	}
+
+	/**
+	 * Remove all cached mounts for a user
+	 *
+	 * @param IUser $user
+	 */
+	public function removeUserMounts(IUser $user) {
+		$builder = $this->connection->getQueryBuilder();
+
+		$query = $builder->delete('mounts')
+				->where($builder->expr()->eq('user_id', $builder->createNamedParameter($user->getUID())));
+		$query->execute();
+	}
 }

lib/private/files/config/usermountcachelistener.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * @author Robin Appelman <icewind@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Files\Config;
+
+use OC\User\Manager;
+use OCP\Files\Config\IUserMountCache;
+
+/**
+ * Listen to hooks and update the mount cache as needed
+ */
+class UserMountCacheListener {
+	/**
+	 * @var IUserMountCache
+	 */
+	private $userMountCache;
+
+	/**
+	 * UserMountCacheListener constructor.
+	 *
+	 * @param IUserMountCache $userMountCache
+	 */
+	public function __construct(IUserMountCache $userMountCache) {
+		$this->userMountCache = $userMountCache;
+	}
+
+	public function listen(Manager $manager) {
+		$manager->listen('\OC\User', 'postDelete', [$this->userMountCache, 'removeUserMounts']);
+	}
+}

lib/private/server.php

@@ -48,6 +48,7 @@ use OC\Diagnostics\NullEventLogger;
 use OC\Diagnostics\NullQueryLogger;
 use OC\Diagnostics\QueryLogger;
 use OC\Files\Config\UserMountCache;
+use OC\Files\Config\UserMountCacheListener;
 use OC\Files\Node\HookConnector;
 use OC\Files\Node\Root;
 use OC\Files\View;
@@ -137,7 +138,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 			return new Encryption\Keys\Storage($view, $util);
 		});
-		$this->registerService('TagMapper', function(Server $c) {
+		$this->registerService('TagMapper', function (Server $c) {
 			return new TagMapper($c->getDatabaseConnection());
 		});
 		$this->registerService('TagManager', function (Server $c) {
@@ -266,13 +267,13 @@ class Server extends ServerContainer implements IServerContainer {
 		$this->registerService('MemCacheFactory', function (Server $c) {
 			$config = $c->getConfig();
 
-			if($config->getSystemValue('installed', false) && !(defined('PHPUNIT_RUN') && PHPUNIT_RUN)) {
+			if ($config->getSystemValue('installed', false) && !(defined('PHPUNIT_RUN') && PHPUNIT_RUN)) {
 				$v = \OC_App::getAppVersions();
 				$v['core'] = md5(file_get_contents(\OC::$SERVERROOT . '/version.php'));
 				$version = implode(',', $v);
 				$instanceId = \OC_Util::getInstanceId();
 				$path = \OC::$SERVERROOT;
-				$prefix = md5($instanceId.'-'.$version.'-'.$path);
+				$prefix = md5($instanceId . '-' . $version . '-' . $path);
 				return new \OC\Memcache\Factory($prefix, $c->getLogger(),
 					$config->getSystemValue('memcache.local', null),
 					$config->getSystemValue('memcache.distributed', null),
@@ -383,7 +384,7 @@ class Server extends ServerContainer implements IServerContainer {
 				$c->getConfig()
 			);
 		});
-		$this->registerService('AppManager', function(Server $c) {
+		$this->registerService('AppManager', function (Server $c) {
 			return new \OC\App\AppManager(
 				$c->getUserSession(),
 				$c->getAppConfig(),
@@ -391,13 +392,13 @@ class Server extends ServerContainer implements IServerContainer {
 				$c->getMemCacheFactory()
 			);
 		});
-		$this->registerService('DateTimeZone', function(Server $c) {
+		$this->registerService('DateTimeZone', function (Server $c) {
 			return new DateTimeZone(
 				$c->getConfig(),
 				$c->getSession()
 			);
 		});
-		$this->registerService('DateTimeFormatter', function(Server $c) {
+		$this->registerService('DateTimeFormatter', function (Server $c) {
 			$language = $c->getConfig()->getUserValue($c->getSession()->get('user_id'), 'core', 'lang', null);
 
 			return new DateTimeFormatter(
@@ -405,9 +406,15 @@ class Server extends ServerContainer implements IServerContainer {
 				$c->getL10N('lib', $language)
 			);
 		});
+		$this->registerService('UserMountCache', function (Server $c) {
+			$mountCache = new UserMountCache($c->getDatabaseConnection(), $c->getUserManager(), $c->getLogger());
+			$listener = new UserMountCacheListener($mountCache);
+			$listener->listen($c->getUserManager());
+			return $mountCache;
+		});
 		$this->registerService('MountConfigManager', function (Server $c) {
 			$loader = \OC\Files\Filesystem::getLoader();
-			$mountCache = new UserMountCache($c->getDatabaseConnection(), $c->getUserManager(), $c->getLogger());
+			$mountCache = $c->query('UserMountCache');
 			return new \OC\Files\Config\MountProviderCollection($loader, $mountCache);
 		});
 		$this->registerService('IniWrapper', function ($c) {
@@ -480,14 +487,14 @@ class Server extends ServerContainer implements IServerContainer {
 				$stream
 			);
 		});
-		$this->registerService('Mailer', function(Server $c) {
+		$this->registerService('Mailer', function (Server $c) {
 			return new Mailer(
 				$c->getConfig(),
 				$c->getLogger(),
 				new \OC_Defaults()
 			);
 		});
-		$this->registerService('OcsClient', function(Server $c) {
+		$this->registerService('OcsClient', function (Server $c) {
 			return new OCSClient(
 				$this->getHTTPClientService(),
 				$this->getConfig(),
@@ -509,24 +516,24 @@ class Server extends ServerContainer implements IServerContainer {
 		$this->registerService('MountManager', function () {
 			return new \OC\Files\Mount\Manager();
 		});
-		$this->registerService('MimeTypeDetector', function(Server $c) {
+		$this->registerService('MimeTypeDetector', function (Server $c) {
 			return new \OC\Files\Type\Detection(
 				$c->getURLGenerator(),
 				\OC::$SERVERROOT . '/config/',
 				\OC::$SERVERROOT . '/resources/config/'
 			);
 		});
-		$this->registerService('MimeTypeLoader', function(Server $c) {
+		$this->registerService('MimeTypeLoader', function (Server $c) {
 			return new \OC\Files\Type\Loader(
 				$c->getDatabaseConnection()
 			);
 		});
-		$this->registerService('NotificationManager', function() {
+		$this->registerService('NotificationManager', function () {
 			return new Manager();
 		});
 		$this->registerService('CapabilitiesManager', function (Server $c) {
 			$manager = new \OC\CapabilitiesManager();
-			$manager->registerCapability(function() use ($c) {
+			$manager->registerCapability(function () use ($c) {
 				return new \OC\OCS\CoreCapabilities($c->getConfig());
 			});
 			return $manager;
@@ -538,7 +545,7 @@ class Server extends ServerContainer implements IServerContainer {
 			$factory = new $factoryClass();
 			return $factory->getManager();
 		});
-		$this->registerService('EventDispatcher', function() {
+		$this->registerService('EventDispatcher', function () {
 			return new EventDispatcher();
 		});
 		$this->registerService('CryptoWrapper', function (Server $c) {
@@ -923,6 +930,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 	/**
 	 * Returns an instance of the db facade
+	 *
 	 * @deprecated use getDatabaseConnection, will be removed in ownCloud 10
 	 * @return \OCP\IDb
 	 */
@@ -932,6 +940,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 	/**
 	 * Returns an instance of the HTTP helper class
+	 *
 	 * @deprecated Use getHTTPClientService()
 	 * @return \OC\HTTPHelper
 	 */
@@ -1057,7 +1066,7 @@ class Server extends ServerContainer implements IServerContainer {
 	/**
 	 * @return \OCP\Files\Config\IMountProviderCollection
 	 */
-	public function getMountProviderCollection(){
+	public function getMountProviderCollection() {
 		return $this->query('MountConfigManager');
 	}
 
@@ -1073,7 +1082,7 @@ class Server extends ServerContainer implements IServerContainer {
 	/**
 	 * @return \OCP\Command\IBus
 	 */
-	public function getCommandBus(){
+	public function getCommandBus() {
 		return $this->query('AsyncCommandBus');
 	}
 
@@ -1173,6 +1182,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 	/**
 	 * Not a public API as of 8.2, wait for 9.0
+	 *
 	 * @return \OCA\Files_External\Service\BackendService
 	 */
 	public function getStoragesBackendService() {
@@ -1181,6 +1191,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 	/**
 	 * Not a public API as of 8.2, wait for 9.0
+	 *
 	 * @return \OCA\Files_External\Service\GlobalStoragesService
 	 */
 	public function getGlobalStoragesService() {
@@ -1189,6 +1200,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 	/**
 	 * Not a public API as of 8.2, wait for 9.0
+	 *
 	 * @return \OCA\Files_External\Service\UserGlobalStoragesService
 	 */
 	public function getUserGlobalStoragesService() {
@@ -1197,6 +1209,7 @@ class Server extends ServerContainer implements IServerContainer {
 
 	/**
 	 * Not a public API as of 8.2, wait for 9.0
+	 *
 	 * @return \OCA\Files_External\Service\UserStoragesService
 	 */
 	public function getUserStoragesService() {
@@ -1210,4 +1223,5 @@ class Server extends ServerContainer implements IServerContainer {
 	public function getShareManager() {
 		return $this->query('ShareManager');
 	}
+
 }

lib/public/files/config/iusermountcache.php

@@ -31,7 +31,7 @@ use OCP\IUser;
  */
 interface IUserMountCache {
 	/**
-	 * Register a mount for a user to the cache
+	 * Register mounts for a user to the cache
 	 *
 	 * @param IUser $user
 	 * @param IMountPoint[] $mounts
@@ -59,4 +59,12 @@ interface IUserMountCache {
 	 * @since 9.0.0
 	 */
 	public function getMountsForRootId($rootFileId);
+
+	/**
+	 * Remove all cached mounts for a user
+	 *
+	 * @param IUser $user
+	 * @since 9.0.0
+	 */
+	public function removeUserMounts(IUser $user);
 }