Update query method for DIContainer

To align with https://github.com/nextcloud/server/issues/2043#issuecomment-287348294
This would mean that AppContainers only hold the AppSpecific services

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

lib/private/AppFramework/DependencyInjection/DIContainer.php

@@ -43,12 +43,11 @@ use OC\AppFramework\Middleware\OCSMiddleware;
 use OC\AppFramework\Middleware\Security\SecurityMiddleware;
 use OC\AppFramework\Middleware\SessionMiddleware;
 use OC\AppFramework\Utility\SimpleContainer;
-use OC\AppFramework\Utility\TimeFactory;
 use OC\Core\Middleware\TwoFactorMiddleware;
 use OC\RichObjectStrings\Validator;
-use OC\Security\Bruteforce\Throttler;
 use OCP\AppFramework\IApi;
 use OCP\AppFramework\IAppContainer;
+use OCP\AppFramework\QueryException;
 use OCP\Federation\ICloudIdManager;
 use OCP\Files\IAppData;
 use OCP\Files\Mount\IMountManager;
@@ -568,7 +567,16 @@ class DIContainer extends SimpleContainer implements IAppContainer {
 		});
 	}
 
-	public function query($name) {
-		return parent::query($name);
+	public function query($name, $checkServerContainer = true) {
+		$name = $this->sanitizeName($name);
+		try {
+			return parent::query($name);
+		} catch (QueryException $e) {
+			if ($checkServerContainer === false) {
+				throw $e;
+			}
+		}
+
+		return $this->getServer()->query($name);
 	}
 }

lib/private/ServerContainer.php

@@ -79,7 +79,7 @@ class ServerContainer extends SimpleContainer {
 			$segments = explode('\\', $name);
 			$appContainer = $this->getAppContainer(strtolower($segments[1]));
 			try {
-				return $appContainer->query($name);
+				return $appContainer->query($name, false);
 			} catch (QueryException $e) {
 				// Didn't find the service in the respective app container,
 				// ignore it and fall back to the core container.