check registered sections and settings after an app got updated to garbage collect orphaned classes

This commit is contained in:
Arthur Schiwon 2016-08-16 00:52:41 +02:00 committed by Lukas Reschke
parent 1e62bd3d92
commit 6e37a007b9
No known key found for this signature in database
GPG Key ID: B9F6980CF6E759B1
6 changed files with 155 additions and 0 deletions

View File

@ -808,6 +808,14 @@ class OC {
/** @var \OCP\App\ManagerEvent $event */
\OC::$server->getSettingsManager()->onAppDisabled($event->getAppID());
});
$dispatcher->addListener(OCP\App\ManagerEvent::EVENT_APP_UPDATE, function($event) {
/** @var \OCP\App\ManagerEvent $event */
$jobList = \OC::$server->getJobList();
$job = 'OC\\Settings\\RemoveOrphaned';
if(!($jobList->has($job, null))) {
$jobList->add($job);
}
});
}
private static function registerEncryptionWrapper() {

View File

@ -112,6 +112,37 @@ class Manager implements IManager {
}
}
public function checkForOrphanedClassNames() {
$tables = [ self::TABLE_ADMIN_SECTIONS, self::TABLE_ADMIN_SETTINGS ];
foreach ($tables as $table) {
$classes = $this->getClasses($table);
foreach($classes as $className) {
try {
\OC::$server->query($className);
} catch (QueryException $e) {
$this->remove($table, $className);
}
}
}
}
/**
* returns the registerd classes in the given table
*
* @param $table
* @return string[]
*/
private function getClasses($table) {
$q = $this->dbc->getQueryBuilder();
$resultStatement = $q->select('class')
->from($table)
->execute();
$data = $resultStatement->fetchAll();
$resultStatement->closeCursor();
return array_map(function($row) { return $row['class']; }, $data);
}
/**
* @param string $sectionClassName
*/

View File

@ -0,0 +1,91 @@
<?php
/**
* @copyright Copyright (c) 2016 Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Settings;
use OC\BackgroundJob\JobList;
use OC\BackgroundJob\TimedJob;
use OC\NeedsUpdateException;
use OCP\BackgroundJob\IJobList;
use OCP\ILogger;
/**
* Class RemoveOrphaned
*
* @package OC\Settings
*/
class RemoveOrphaned extends TimedJob {
/** @var IJobList */
private $jobList;
/** @var ILogger */
private $logger;
/** @var Manager */
private $manager;
public function __construct(Manager $manager = null) {
if($manager !== null) {
$this->manager = $manager;
} else {
// fix DI for Jobs
$this->manager = \OC::$server->getSettingsManager();
}
}
/**
* run the job, then remove it from the job list
*
* @param JobList $jobList
* @param ILogger $logger
*/
public function execute($jobList, ILogger $logger = null) {
// add an interval of 15 mins
$this->setInterval(15*60);
$this->jobList = $jobList;
$this->logger = $logger;
parent::execute($jobList, $logger);
}
/**
* @param array $argument
* @throws \Exception
* @throws \OC\NeedsUpdateException
*/
protected function run($argument) {
try {
\OC_App::loadApps();
} catch (NeedsUpdateException $ex) {
// only run when apps are up to date
return;
}
$this->manager->checkForOrphanedClassNames();
// remove the job once executed successfully
$this->jobList->remove($this);
}
}

View File

@ -51,6 +51,7 @@ use OC\App\Platform;
use OC\Installer;
use OC\OCSClient;
use OC\Repair;
use OCP\App\ManagerEvent;
/**
* This class manages the apps. It allows them to register and integrate in the
@ -1237,6 +1238,10 @@ class OC_App {
$version = \OC_App::getAppVersion($appId);
\OC::$server->getAppConfig()->setValue($appId, 'installed_version', $version);
\OC::$server->getEventDispatcher()->dispatch(ManagerEvent::EVENT_APP_UPDATE, new ManagerEvent(
ManagerEvent::EVENT_APP_UPDATE, $appId
));
return true;
}

View File

@ -36,6 +36,11 @@ class ManagerEvent extends Event {
const EVENT_APP_ENABLE_FOR_GROUPS = 'OCP\App\IAppManager::enableAppForGroups';
const EVENT_APP_DISABLE = 'OCP\App\IAppManager::disableApp';
/**
* @since 9.1.0
*/
const EVENT_APP_UPDATE = 'OCP\App\IAppManager::updateApp';
/** @var string */
protected $event;
/** @var string */

View File

@ -64,6 +64,21 @@ interface IManager {
*/
public function onAppDisabled($appId);
/**
* The method should check all registered classes whether they are still
* instantiable and remove them, if not. This method is called by a
* background job once, after one or more apps were updated.
*
* An app`s info.xml can change during an update and make it unknown whether
* a registered class name was changed or not. An old one would just stay
* registered. Another case is if an admin takes a radical approach and
* simply removes an app from the app folder. These unregular checks will
* take care of such situations.
*
* @since 9.1.0
*/
public function checkForOrphanedClassNames();
/**
* returns a list of the admin sections
*