nextcloud / server

apps/dav/lib/AppInfo/Application.php

Indentation +178 added lines, -178 removed lines

@@ -43,185 +43,185 @@
 
 class Application extends App {
 
-	/**
-	 * Application constructor.
-	 */
-	public function __construct() {
-		parent::__construct('dav');
-
-		$container = $this->getContainer();
-		$server = $container->getServer();
-
-		$container->registerService(PhotoCache::class, function(SimpleContainer $s) use ($server) {
-			return new PhotoCache(
-				$server->getAppDataDir('dav-photocache'),
-				$server->getLogger()
-			);
-		});
-
-		/*
+    /**
+     * Application constructor.
+     */
+    public function __construct() {
+        parent::__construct('dav');
+
+        $container = $this->getContainer();
+        $server = $container->getServer();
+
+        $container->registerService(PhotoCache::class, function(SimpleContainer $s) use ($server) {
+            return new PhotoCache(
+                $server->getAppDataDir('dav-photocache'),
+                $server->getLogger()
+            );
+        });
+
+        /*
 		 * Register capabilities
 		 */
-		$container->registerCapability(Capabilities::class);
-	}
-
-	/**
-	 * @param IContactsManager $contactsManager
-	 * @param string $userID
-	 */
-	public function setupContactsProvider(IContactsManager $contactsManager, $userID) {
-		/** @var ContactsManager $cm */
-		$cm = $this->getContainer()->query(ContactsManager::class);
-		$urlGenerator = $this->getContainer()->getServer()->getURLGenerator();
-		$cm->setupContactsProvider($contactsManager, $userID, $urlGenerator);
-	}
-
-	/**
-	 * @param IContactsManager $contactsManager
-	 */
-	public function setupSystemContactsProvider(IContactsManager $contactsManager) {
-		/** @var ContactsManager $cm */
-		$cm = $this->getContainer()->query(ContactsManager::class);
-		$urlGenerator = $this->getContainer()->getServer()->getURLGenerator();
-		$cm->setupSystemContactsProvider($contactsManager, $urlGenerator);
-	}
-
-	/**
-	 * @param ICalendarManager $calendarManager
-	 * @param string $userId
-	 */
-	public function setupCalendarProvider(ICalendarManager $calendarManager, $userId) {
-		$cm = $this->getContainer()->query(CalendarManager::class);
-		$cm->setupCalendarProvider($calendarManager, $userId);
-	}
-
-	public function registerHooks() {
-		/** @var HookManager $hm */
-		$hm = $this->getContainer()->query(HookManager::class);
-		$hm->setup();
-
-		$dispatcher = $this->getContainer()->getServer()->getEventDispatcher();
-
-		// first time login event setup
-		$dispatcher->addListener(IUser::class . '::firstLogin', function ($event) use ($hm) {
-			if ($event instanceof GenericEvent) {
-				$hm->firstLogin($event->getSubject());
-			}
-		});
-
-		// carddav/caldav sync event setup
-		$listener = function($event) {
-			if ($event instanceof GenericEvent) {
-				/** @var BirthdayService $b */
-				$b = $this->getContainer()->query(BirthdayService::class);
-				$b->onCardChanged(
-					$event->getArgument('addressBookId'),
-					$event->getArgument('cardUri'),
-					$event->getArgument('cardData')
-				);
-			}
-		};
-
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $listener);
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', function($event) {
-			if ($event instanceof GenericEvent) {
-				/** @var BirthdayService $b */
-				$b = $this->getContainer()->query(BirthdayService::class);
-				$b->onCardDeleted(
-					$event->getArgument('addressBookId'),
-					$event->getArgument('cardUri')
-				);
-			}
-		});
-
-		$clearPhotoCache = function($event) {
-			if ($event instanceof GenericEvent) {
-				/** @var PhotoCache $p */
-				$p = $this->getContainer()->query(PhotoCache::class);
-				$p->delete(
-					$event->getArgument('addressBookId'),
-					$event->getArgument('cardUri')
-				);
-			}
-		};
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $clearPhotoCache);
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', $clearPhotoCache);
-
-		$dispatcher->addListener('OC\AccountManager::userUpdated', function(GenericEvent $event) {
-			$user = $event->getSubject();
-			$syncService = $this->getContainer()->query(SyncService::class);
-			$syncService->updateUser($user);
-		});
-
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarAdd(
-				$event->getArgument('calendarData')
-			);
-		});
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarUpdate(
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares'),
-				$event->getArgument('propertyMutations')
-			);
-		});
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarDelete(
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares')
-			);
-		});
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateShares', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarUpdateShares(
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares'),
-				$event->getArgument('add'),
-				$event->getArgument('remove')
-			);
-		});
-
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::publishCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarPublication(
-				$event->getArgument('calendarData'),
-				$event->getArgument('public')
-			);
-		});
-
-		$listener = function(GenericEvent $event, $eventName) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-
-			$subject = Event::SUBJECT_OBJECT_ADD;
-			if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject') {
-				$subject = Event::SUBJECT_OBJECT_UPDATE;
-			} else if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject') {
-				$subject = Event::SUBJECT_OBJECT_DELETE;
-			}
-			$backend->onTouchCalendarObject(
-				$subject,
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares'),
-				$event->getArgument('objectData')
-			);
-		};
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendarObject', $listener);
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject', $listener);
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject', $listener);
-	}
-
-	public function getSyncService() {
-		return $this->getContainer()->query(SyncService::class);
-	}
+        $container->registerCapability(Capabilities::class);
+    }
+
+    /**
+     * @param IContactsManager $contactsManager
+     * @param string $userID
+     */
+    public function setupContactsProvider(IContactsManager $contactsManager, $userID) {
+        /** @var ContactsManager $cm */
+        $cm = $this->getContainer()->query(ContactsManager::class);
+        $urlGenerator = $this->getContainer()->getServer()->getURLGenerator();
+        $cm->setupContactsProvider($contactsManager, $userID, $urlGenerator);
+    }
+
+    /**
+     * @param IContactsManager $contactsManager
+     */
+    public function setupSystemContactsProvider(IContactsManager $contactsManager) {
+        /** @var ContactsManager $cm */
+        $cm = $this->getContainer()->query(ContactsManager::class);
+        $urlGenerator = $this->getContainer()->getServer()->getURLGenerator();
+        $cm->setupSystemContactsProvider($contactsManager, $urlGenerator);
+    }
+
+    /**
+     * @param ICalendarManager $calendarManager
+     * @param string $userId
+     */
+    public function setupCalendarProvider(ICalendarManager $calendarManager, $userId) {
+        $cm = $this->getContainer()->query(CalendarManager::class);
+        $cm->setupCalendarProvider($calendarManager, $userId);
+    }
+
+    public function registerHooks() {
+        /** @var HookManager $hm */
+        $hm = $this->getContainer()->query(HookManager::class);
+        $hm->setup();
+
+        $dispatcher = $this->getContainer()->getServer()->getEventDispatcher();
+
+        // first time login event setup
+        $dispatcher->addListener(IUser::class . '::firstLogin', function ($event) use ($hm) {
+            if ($event instanceof GenericEvent) {
+                $hm->firstLogin($event->getSubject());
+            }
+        });
+
+        // carddav/caldav sync event setup
+        $listener = function($event) {
+            if ($event instanceof GenericEvent) {
+                /** @var BirthdayService $b */
+                $b = $this->getContainer()->query(BirthdayService::class);
+                $b->onCardChanged(
+                    $event->getArgument('addressBookId'),
+                    $event->getArgument('cardUri'),
+                    $event->getArgument('cardData')
+                );
+            }
+        };
+
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $listener);
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', function($event) {
+            if ($event instanceof GenericEvent) {
+                /** @var BirthdayService $b */
+                $b = $this->getContainer()->query(BirthdayService::class);
+                $b->onCardDeleted(
+                    $event->getArgument('addressBookId'),
+                    $event->getArgument('cardUri')
+                );
+            }
+        });
+
+        $clearPhotoCache = function($event) {
+            if ($event instanceof GenericEvent) {
+                /** @var PhotoCache $p */
+                $p = $this->getContainer()->query(PhotoCache::class);
+                $p->delete(
+                    $event->getArgument('addressBookId'),
+                    $event->getArgument('cardUri')
+                );
+            }
+        };
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $clearPhotoCache);
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', $clearPhotoCache);
+
+        $dispatcher->addListener('OC\AccountManager::userUpdated', function(GenericEvent $event) {
+            $user = $event->getSubject();
+            $syncService = $this->getContainer()->query(SyncService::class);
+            $syncService->updateUser($user);
+        });
+
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarAdd(
+                $event->getArgument('calendarData')
+            );
+        });
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarUpdate(
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares'),
+                $event->getArgument('propertyMutations')
+            );
+        });
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarDelete(
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares')
+            );
+        });
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateShares', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarUpdateShares(
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares'),
+                $event->getArgument('add'),
+                $event->getArgument('remove')
+            );
+        });
+
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::publishCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarPublication(
+                $event->getArgument('calendarData'),
+                $event->getArgument('public')
+            );
+        });
+
+        $listener = function(GenericEvent $event, $eventName) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+
+            $subject = Event::SUBJECT_OBJECT_ADD;
+            if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject') {
+                $subject = Event::SUBJECT_OBJECT_UPDATE;
+            } else if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject') {
+                $subject = Event::SUBJECT_OBJECT_DELETE;
+            }
+            $backend->onTouchCalendarObject(
+                $subject,
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares'),
+                $event->getArgument('objectData')
+            );
+        };
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendarObject', $listener);
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject', $listener);
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject', $listener);
+    }
+
+    public function getSyncService() {
+        return $this->getContainer()->query(SyncService::class);
+    }
 
 }

lib/public/AppFramework/App.php

Indentation +91 added lines, -91 removed lines

@@ -47,101 +47,101 @@
  */
 class App {
 
-	/** @var IAppContainer */
-	private $container;
+    /** @var IAppContainer */
+    private $container;
 
-	/**
-	 * Turns an app id into a namespace by convetion. The id is split at the
-	 * underscores, all parts are camelcased and reassembled. e.g.:
-	 * some_app_id -> OCA\SomeAppId
-	 * @param string $appId the app id
-	 * @param string $topNamespace the namespace which should be prepended to
-	 * the transformed app id, defaults to OCA\
-	 * @return string the starting namespace for the app
-	 * @since 8.0.0
-	 */
-	public static function buildAppNamespace(string $appId, string $topNamespace='OCA\\'): string {
-		return \OC\AppFramework\App::buildAppNamespace($appId, $topNamespace);
-	}
+    /**
+     * Turns an app id into a namespace by convetion. The id is split at the
+     * underscores, all parts are camelcased and reassembled. e.g.:
+     * some_app_id -> OCA\SomeAppId
+     * @param string $appId the app id
+     * @param string $topNamespace the namespace which should be prepended to
+     * the transformed app id, defaults to OCA\
+     * @return string the starting namespace for the app
+     * @since 8.0.0
+     */
+    public static function buildAppNamespace(string $appId, string $topNamespace='OCA\\'): string {
+        return \OC\AppFramework\App::buildAppNamespace($appId, $topNamespace);
+    }
 
 
-	/**
-	 * @param string $appName
-	 * @param array $urlParams an array with variables extracted from the routes
-	 * @since 6.0.0
-	 */
-	public function __construct(string $appName, array $urlParams = []) {
-		try {
-			$this->container = \OC::$server->getRegisteredAppContainer($appName);
-		} catch (QueryException $e) {
-			$this->container = new \OC\AppFramework\DependencyInjection\DIContainer($appName, $urlParams);
-		}
-	}
+    /**
+     * @param string $appName
+     * @param array $urlParams an array with variables extracted from the routes
+     * @since 6.0.0
+     */
+    public function __construct(string $appName, array $urlParams = []) {
+        try {
+            $this->container = \OC::$server->getRegisteredAppContainer($appName);
+        } catch (QueryException $e) {
+            $this->container = new \OC\AppFramework\DependencyInjection\DIContainer($appName, $urlParams);
+        }
+    }
 
-	/**
-	 * @return IAppContainer
-	 * @since 6.0.0
-	 */
-	public function getContainer(): IAppContainer {
-		return $this->container;
-	}
+    /**
+     * @return IAppContainer
+     * @since 6.0.0
+     */
+    public function getContainer(): IAppContainer {
+        return $this->container;
+    }
 
-	/**
-	 * This function is to be called to create single routes and restful routes based on the given $routes array.
-	 *
-	 * Example code in routes.php of tasks app (it will register two restful resources):
-	 * $routes = array(
-	 *		'resources' => array(
-	 *		'lists' => array('url' => '/tasklists'),
-	 *		'tasks' => array('url' => '/tasklists/{listId}/tasks')
-	 *	)
-	 *	);
-	 *
-	 * $a = new TasksApp();
-	 * $a->registerRoutes($this, $routes);
-	 *
-	 * @param \OCP\Route\IRouter $router
-	 * @param array $routes
-	 * @since 6.0.0
-	 * @suppress PhanAccessMethodInternal
-	 */
-	public function registerRoutes(IRouter $router, array $routes) {
-		$routeConfig = new RouteConfig($this->container, $router, $routes);
-		$routeConfig->register();
-	}
+    /**
+     * This function is to be called to create single routes and restful routes based on the given $routes array.
+     *
+     * Example code in routes.php of tasks app (it will register two restful resources):
+     * $routes = array(
+     *		'resources' => array(
+     *		'lists' => array('url' => '/tasklists'),
+     *		'tasks' => array('url' => '/tasklists/{listId}/tasks')
+     *	)
+     *	);
+     *
+     * $a = new TasksApp();
+     * $a->registerRoutes($this, $routes);
+     *
+     * @param \OCP\Route\IRouter $router
+     * @param array $routes
+     * @since 6.0.0
+     * @suppress PhanAccessMethodInternal
+     */
+    public function registerRoutes(IRouter $router, array $routes) {
+        $routeConfig = new RouteConfig($this->container, $router, $routes);
+        $routeConfig->register();
+    }
 
-	/**
-	 * This function is called by the routing component to fire up the frameworks dispatch mechanism.
-	 *
-	 * Example code in routes.php of the task app:
-	 * $this->create('tasks_index', '/')->get()->action(
-	 *		function($params){
-	 *			$app = new TaskApp($params);
-	 *			$app->dispatch('PageController', 'index');
-	 *		}
-	 *	);
-	 *
-	 *
-	 * Example for for TaskApp implementation:
-	 * class TaskApp extends \OCP\AppFramework\App {
-	 *
-	 *		public function __construct($params){
-	 *			parent::__construct('tasks', $params);
-	 *
-	 *			$this->getContainer()->registerService('PageController', function(IAppContainer $c){
-	 *				$a = $c->query('API');
-	 *				$r = $c->query('Request');
-	 *				return new PageController($a, $r);
-	 *			});
-	 *		}
-	 *	}
-	 *
-	 * @param string $controllerName the name of the controller under which it is
-	 *                               stored in the DI container
-	 * @param string $methodName the method that you want to call
-	 * @since 6.0.0
-	 */
-	public function dispatch(string $controllerName, string $methodName) {
-		\OC\AppFramework\App::main($controllerName, $methodName, $this->container);
-	}
+    /**
+     * This function is called by the routing component to fire up the frameworks dispatch mechanism.
+     *
+     * Example code in routes.php of the task app:
+     * $this->create('tasks_index', '/')->get()->action(
+     *		function($params){
+     *			$app = new TaskApp($params);
+     *			$app->dispatch('PageController', 'index');
+     *		}
+     *	);
+     *
+     *
+     * Example for for TaskApp implementation:
+     * class TaskApp extends \OCP\AppFramework\App {
+     *
+     *		public function __construct($params){
+     *			parent::__construct('tasks', $params);
+     *
+     *			$this->getContainer()->registerService('PageController', function(IAppContainer $c){
+     *				$a = $c->query('API');
+     *				$r = $c->query('Request');
+     *				return new PageController($a, $r);
+     *			});
+     *		}
+     *	}
+     *
+     * @param string $controllerName the name of the controller under which it is
+     *                               stored in the DI container
+     * @param string $methodName the method that you want to call
+     * @since 6.0.0
+     */
+    public function dispatch(string $controllerName, string $methodName) {
+        \OC\AppFramework\App::main($controllerName, $methodName, $this->container);
+    }
 }

lib/private/ServerContainer.php

Indentation +114 added lines, -114 removed lines

@@ -35,118 +35,118 @@
  * @package OC
  */
 class ServerContainer extends SimpleContainer {
-	/** @var DIContainer[] */
-	protected $appContainers;
-
-	/** @var string[] */
-	protected $hasNoAppContainer;
-
-	/** @var string[] */
-	protected $namespaces;
-
-	/**
-	 * ServerContainer constructor.
-	 */
-	public function __construct() {
-		parent::__construct();
-		$this->appContainers = [];
-		$this->namespaces = [];
-		$this->hasNoAppContainer = [];
-	}
-
-	/**
-	 * @param string $appName
-	 * @param string $appNamespace
-	 */
-	public function registerNamespace(string $appName, string $appNamespace): void {
-		// Cut of OCA\ and lowercase
-		$appNamespace = strtolower(substr($appNamespace, strrpos($appNamespace, '\\') + 1));
-		$this->namespaces[$appNamespace] = $appName;
-	}
-
-	/**
-	 * @param string $appName
-	 * @param DIContainer $container
-	 */
-	public function registerAppContainer(string $appName, DIContainer $container): void {
-		$this->appContainers[strtolower(App::buildAppNamespace($appName, ''))] = $container;
-	}
-
-	/**
-	 * @param string $appName
-	 * @return DIContainer
-	 * @throws QueryException
-	 */
-	public function getRegisteredAppContainer(string $appName): DIContainer {
-		if (isset($this->appContainers[strtolower(App::buildAppNamespace($appName, ''))])) {
-			return $this->appContainers[strtolower(App::buildAppNamespace($appName, ''))];
-		}
-
-		throw new QueryException();
-	}
-
-	/**
-	 * @param string $namespace
-	 * @param string $sensitiveNamespace
-	 * @return DIContainer
-	 * @throws QueryException
-	 */
-	protected function getAppContainer(string $namespace, string $sensitiveNamespace): DIContainer {
-		if (isset($this->appContainers[$namespace])) {
-			return $this->appContainers[$namespace];
-		}
-
-		if (isset($this->namespaces[$namespace])) {
-			if (!isset($this->hasNoAppContainer[$namespace])) {
-				$applicationClassName = 'OCA\\' . $sensitiveNamespace . '\\AppInfo\\Application';
-				if (class_exists($applicationClassName)) {
-					new $applicationClassName();
-					if (isset($this->appContainers[$namespace])) {
-						return $this->appContainers[$namespace];
-					}
-				}
-				$this->hasNoAppContainer[$namespace] = true;
-			}
-
-			return new DIContainer($this->namespaces[$namespace]);
-		}
-		throw new QueryException();
-	}
-
-	/**
-	 * @param string $name name of the service to query for
-	 * @return mixed registered service for the given $name
-	 * @throws QueryException if the query could not be resolved
-	 */
-	public function query($name) {
-		$name = $this->sanitizeName($name);
-
-		if (isset($this[$name])) {
-			return $this[$name];
-		}
-
-		// In case the service starts with OCA\ we try to find the service in
-		// the apps container first.
-		if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
-			$segments = explode('\\', $name);
-			try {
-				$appContainer = $this->getAppContainer(strtolower($segments[1]), $segments[1]);
-				return $appContainer->queryNoFallback($name);
-			} catch (QueryException $e) {
-				// Didn't find the service or the respective app container,
-				// ignore it and fall back to the core container.
-			}
-		} else if (strpos($name, 'OC\\Settings\\') === 0 && substr_count($name, '\\') >= 3) {
-			$segments = explode('\\', $name);
-			try {
-				$appContainer = $this->getAppContainer(strtolower($segments[1]), $segments[1]);
-				return $appContainer->queryNoFallback($name);
-			} catch (QueryException $e) {
-				// Didn't find the service or the respective app container,
-				// ignore it and fall back to the core container.
-			}
-		}
-
-		return parent::query($name);
-	}
+    /** @var DIContainer[] */
+    protected $appContainers;
+
+    /** @var string[] */
+    protected $hasNoAppContainer;
+
+    /** @var string[] */
+    protected $namespaces;
+
+    /**
+     * ServerContainer constructor.
+     */
+    public function __construct() {
+        parent::__construct();
+        $this->appContainers = [];
+        $this->namespaces = [];
+        $this->hasNoAppContainer = [];
+    }
+
+    /**
+     * @param string $appName
+     * @param string $appNamespace
+     */
+    public function registerNamespace(string $appName, string $appNamespace): void {
+        // Cut of OCA\ and lowercase
+        $appNamespace = strtolower(substr($appNamespace, strrpos($appNamespace, '\\') + 1));
+        $this->namespaces[$appNamespace] = $appName;
+    }
+
+    /**
+     * @param string $appName
+     * @param DIContainer $container
+     */
+    public function registerAppContainer(string $appName, DIContainer $container): void {
+        $this->appContainers[strtolower(App::buildAppNamespace($appName, ''))] = $container;
+    }
+
+    /**
+     * @param string $appName
+     * @return DIContainer
+     * @throws QueryException
+     */
+    public function getRegisteredAppContainer(string $appName): DIContainer {
+        if (isset($this->appContainers[strtolower(App::buildAppNamespace($appName, ''))])) {
+            return $this->appContainers[strtolower(App::buildAppNamespace($appName, ''))];
+        }
+
+        throw new QueryException();
+    }
+
+    /**
+     * @param string $namespace
+     * @param string $sensitiveNamespace
+     * @return DIContainer
+     * @throws QueryException
+     */
+    protected function getAppContainer(string $namespace, string $sensitiveNamespace): DIContainer {
+        if (isset($this->appContainers[$namespace])) {
+            return $this->appContainers[$namespace];
+        }
+
+        if (isset($this->namespaces[$namespace])) {
+            if (!isset($this->hasNoAppContainer[$namespace])) {
+                $applicationClassName = 'OCA\\' . $sensitiveNamespace . '\\AppInfo\\Application';
+                if (class_exists($applicationClassName)) {
+                    new $applicationClassName();
+                    if (isset($this->appContainers[$namespace])) {
+                        return $this->appContainers[$namespace];
+                    }
+                }
+                $this->hasNoAppContainer[$namespace] = true;
+            }
+
+            return new DIContainer($this->namespaces[$namespace]);
+        }
+        throw new QueryException();
+    }
+
+    /**
+     * @param string $name name of the service to query for
+     * @return mixed registered service for the given $name
+     * @throws QueryException if the query could not be resolved
+     */
+    public function query($name) {
+        $name = $this->sanitizeName($name);
+
+        if (isset($this[$name])) {
+            return $this[$name];
+        }
+
+        // In case the service starts with OCA\ we try to find the service in
+        // the apps container first.
+        if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
+            $segments = explode('\\', $name);
+            try {
+                $appContainer = $this->getAppContainer(strtolower($segments[1]), $segments[1]);
+                return $appContainer->queryNoFallback($name);
+            } catch (QueryException $e) {
+                // Didn't find the service or the respective app container,
+                // ignore it and fall back to the core container.
+            }
+        } else if (strpos($name, 'OC\\Settings\\') === 0 && substr_count($name, '\\') >= 3) {
+            $segments = explode('\\', $name);
+            try {
+                $appContainer = $this->getAppContainer(strtolower($segments[1]), $segments[1]);
+                return $appContainer->queryNoFallback($name);
+            } catch (QueryException $e) {
+                // Didn't find the service or the respective app container,
+                // ignore it and fall back to the core container.
+            }
+        }
+
+        return parent::query($name);
+    }
 }