chore: Add event to register mount providers more lazy

apps/files_sharing/composer/composer/autoload_classmap.php

@@ -60,6 +60,7 @@
     'OCA\\Files_Sharing\\Listener\\BeforeZipCreatedListener' => $baseDir . '/../lib/Listener/BeforeZipCreatedListener.php',
     'OCA\\Files_Sharing\\Listener\\LoadAdditionalListener' => $baseDir . '/../lib/Listener/LoadAdditionalListener.php',
     'OCA\\Files_Sharing\\Listener\\LoadSidebarListener' => $baseDir . '/../lib/Listener/LoadSidebarListener.php',
+    'OCA\\Files_Sharing\\Listener\\RegisterMountProviderListener' => $baseDir . '/../lib/Listener/RegisterMountProviderListener.php',
     'OCA\\Files_Sharing\\Listener\\ShareInteractionListener' => $baseDir . '/../lib/Listener/ShareInteractionListener.php',
     'OCA\\Files_Sharing\\Listener\\UserAddedToGroupListener' => $baseDir . '/../lib/Listener/UserAddedToGroupListener.php',
     'OCA\\Files_Sharing\\Listener\\UserShareAcceptanceListener' => $baseDir . '/../lib/Listener/UserShareAcceptanceListener.php',

apps/files_sharing/composer/composer/autoload_static.php

@@ -75,6 +75,7 @@ class ComposerStaticInitFiles_Sharing
         'OCA\\Files_Sharing\\Listener\\BeforeZipCreatedListener' => __DIR__ . '/..' . '/../lib/Listener/BeforeZipCreatedListener.php',
         'OCA\\Files_Sharing\\Listener\\LoadAdditionalListener' => __DIR__ . '/..' . '/../lib/Listener/LoadAdditionalListener.php',
         'OCA\\Files_Sharing\\Listener\\LoadSidebarListener' => __DIR__ . '/..' . '/../lib/Listener/LoadSidebarListener.php',
+        'OCA\\Files_Sharing\\Listener\\RegisterMountProviderListener' => __DIR__ . '/..' . '/../lib/Listener/RegisterMountProviderListener.php',
         'OCA\\Files_Sharing\\Listener\\ShareInteractionListener' => __DIR__ . '/..' . '/../lib/Listener/ShareInteractionListener.php',
         'OCA\\Files_Sharing\\Listener\\UserAddedToGroupListener' => __DIR__ . '/..' . '/../lib/Listener/UserAddedToGroupListener.php',
         'OCA\\Files_Sharing\\Listener\\UserShareAcceptanceListener' => __DIR__ . '/..' . '/../lib/Listener/UserShareAcceptanceListener.php',

apps/files_sharing/lib/AppInfo/Application.php

@@ -19,13 +19,13 @@
 use OCA\Files_Sharing\Listener\BeforeZipCreatedListener;
 use OCA\Files_Sharing\Listener\LoadAdditionalListener;
 use OCA\Files_Sharing\Listener\LoadSidebarListener;
+use OCA\Files_Sharing\Listener\RegisterMountProviderListener;
 use OCA\Files_Sharing\Listener\ShareInteractionListener;
 use OCA\Files_Sharing\Listener\UserAddedToGroupListener;
 use OCA\Files_Sharing\Listener\UserShareAcceptanceListener;
 use OCA\Files_Sharing\Middleware\OCSShareAPIMiddleware;
 use OCA\Files_Sharing\Middleware\ShareInfoMiddleware;
 use OCA\Files_Sharing\Middleware\SharingCheckMiddleware;
-use OCA\Files_Sharing\MountProvider;
 use OCA\Files_Sharing\Notification\Listener;
 use OCA\Files_Sharing\Notification\Notifier;
 use OCA\Files_Sharing\ShareBackend\File;
@@ -37,9 +37,9 @@
 use OCP\Collaboration\Resources\LoadAdditionalScriptsEvent as ResourcesLoadAdditionalScriptsEvent;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Federation\ICloudIdManager;
-use OCP\Files\Config\IMountProviderCollection;
 use OCP\Files\Events\BeforeDirectFileDownloadEvent;
 use OCP\Files\Events\BeforeZipCreatedEvent;
+use OCP\Files\Events\RegisterMountProviderEvent;
 use OCP\Group\Events\GroupChangedEvent;
 use OCP\Group\Events\GroupDeletedEvent;
 use OCP\Group\Events\UserAddedEvent;
@@ -95,10 +95,11 @@ function () use ($c) {
 		// Handle download events for view only checks
 		$context->registerEventListener(BeforeZipCreatedEvent::class, BeforeZipCreatedListener::class);
 		$context->registerEventListener(BeforeDirectFileDownloadEvent::class, BeforeDirectFileDownloadListener::class);
+
+		$context->registerEventListener(RegisterMountProviderEvent::class, RegisterMountProviderListener::class);
 	}
 
 	public function boot(IBootContext $context): void {
-		$context->injectFn([$this, 'registerMountProviders']);
 		$context->injectFn([$this, 'registerEventsScripts']);
 
 		Helper::registerHooks();
@@ -107,12 +108,6 @@ public function boot(IBootContext $context): void {
 		Share::registerBackend('folder', Folder::class, 'file');
 	}
 
-
-	public function registerMountProviders(IMountProviderCollection $mountProviderCollection, MountProvider $mountProvider, ExternalMountProvider $externalMountProvider): void {
-		$mountProviderCollection->registerProvider($mountProvider);
-		$mountProviderCollection->registerProvider($externalMountProvider);
-	}
-
 	public function registerEventsScripts(IEventDispatcher $dispatcher): void {
 		$dispatcher->addListener(ResourcesLoadAdditionalScriptsEvent::class, function () {
 			\OCP\Util::addScript('files_sharing', 'collaboration');

apps/files_sharing/lib/Listener/RegisterMountProviderListener.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Files_Sharing\Listener;
+
+use OCA\Files_Sharing\External\MountProvider as ExternalMountProvider;
+use OCA\Files_Sharing\MountProvider;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+use OCP\Files\Events\RegisterMountProviderEvent;
+
+/** @template-implements IEventListener<RegisterMountProviderEvent> */
+class RegisterMountProviderListener implements IEventListener {
+
+	public function __construct(
+		private MountProvider $mountProvider,
+		private ExternalMountProvider $externalMountProvider,
+	) {
+	}
+
+	public function handle(Event $event): void {
+		if (!($event instanceof RegisterMountProviderEvent)) {
+			return;
+		}
+
+		$mountProviderCollection = $event->getProviderCollection();
+		$mountProviderCollection->registerProvider($this->mountProvider);
+		$mountProviderCollection->registerProvider($this->externalMountProvider);
+	}
+}

apps/files_sharing/tests/TestCase.php

@@ -9,9 +9,6 @@
 use OC\Files\Filesystem;
 use OC\User\DisplayNameCache;
 use OCA\Files_Sharing\AppInfo\Application;
-use OCA\Files_Sharing\External\MountProvider as ExternalMountProvider;
-use OCA\Files_Sharing\MountProvider;
-use OCP\Files\Config\IMountProviderCollection;
 use OCP\Share\IShare;
 use Test\Traits\MountProviderTrait;
 
@@ -54,11 +51,6 @@ public static function setUpBeforeClass(): void {
 		parent::setUpBeforeClass();
 
 		$app = new Application();
-		$app->registerMountProviders(
-			\OC::$server->get(IMountProviderCollection::class),
-			\OC::$server->get(MountProvider::class),
-			\OC::$server->get(ExternalMountProvider::class),
-		);
 
 		// reset backend
 		\OC_User::clearBackends();

lib/composer/composer/autoload_classmap.php

@@ -370,6 +370,7 @@
     'OCP\\Files\\Events\\Node\\NodeRenamedEvent' => $baseDir . '/lib/public/Files/Events/Node/NodeRenamedEvent.php',
     'OCP\\Files\\Events\\Node\\NodeTouchedEvent' => $baseDir . '/lib/public/Files/Events/Node/NodeTouchedEvent.php',
     'OCP\\Files\\Events\\Node\\NodeWrittenEvent' => $baseDir . '/lib/public/Files/Events/Node/NodeWrittenEvent.php',
+    'OCP\\Files\\Events\\RegisterMountProviderEvent' => $baseDir . '/lib/public/Files/Events/RegisterMountProviderEvent.php',
     'OCP\\Files\\File' => $baseDir . '/lib/public/Files/File.php',
     'OCP\\Files\\FileInfo' => $baseDir . '/lib/public/Files/FileInfo.php',
     'OCP\\Files\\FileNameTooLongException' => $baseDir . '/lib/public/Files/FileNameTooLongException.php',

lib/composer/composer/autoload_static.php

@@ -403,6 +403,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Files\\Events\\Node\\NodeRenamedEvent' => __DIR__ . '/../../..' . '/lib/public/Files/Events/Node/NodeRenamedEvent.php',
         'OCP\\Files\\Events\\Node\\NodeTouchedEvent' => __DIR__ . '/../../..' . '/lib/public/Files/Events/Node/NodeTouchedEvent.php',
         'OCP\\Files\\Events\\Node\\NodeWrittenEvent' => __DIR__ . '/../../..' . '/lib/public/Files/Events/Node/NodeWrittenEvent.php',
+        'OCP\\Files\\Events\\RegisterMountProviderEvent' => __DIR__ . '/../../..' . '/lib/public/Files/Events/RegisterMountProviderEvent.php',
         'OCP\\Files\\File' => __DIR__ . '/../../..' . '/lib/public/Files/File.php',
         'OCP\\Files\\FileInfo' => __DIR__ . '/../../..' . '/lib/public/Files/FileInfo.php',
         'OCP\\Files\\FileNameTooLongException' => __DIR__ . '/../../..' . '/lib/public/Files/FileNameTooLongException.php',

lib/private/Files/Config/MountProviderCollection.php

@@ -10,11 +10,13 @@
 use OC\Hooks\Emitter;
 use OC\Hooks\EmitterTrait;
 use OCP\Diagnostics\IEventLogger;
+use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\Config\IHomeMountProvider;
 use OCP\Files\Config\IMountProvider;
 use OCP\Files\Config\IMountProviderCollection;
 use OCP\Files\Config\IRootMountProvider;
 use OCP\Files\Config\IUserMountCache;
+use OCP\Files\Events\RegisterMountProviderEvent;
 use OCP\Files\Mount\IMountManager;
 use OCP\Files\Mount\IMountPoint;
 use OCP\Files\Storage\IStorageFactory;
@@ -23,46 +25,30 @@
 class MountProviderCollection implements IMountProviderCollection, Emitter {
 	use EmitterTrait;
 
-	/**
-	 * @var \OCP\Files\Config\IHomeMountProvider[]
-	 */
-	private $homeProviders = [];
+	/** @var \OCP\Files\Config\IHomeMountProvider[] */
+	private array $homeProviders = [];
 
-	/**
-	 * @var \OCP\Files\Config\IMountProvider[]
-	 */
-	private $providers = [];
+	/** @var \OCP\Files\Config\IMountProvider[] */
+	private array $providers = [];
 
 	/** @var \OCP\Files\Config\IRootMountProvider[] */
-	private $rootProviders = [];
-
-	/**
-	 * @var \OCP\Files\Storage\IStorageFactory
-	 */
-	private $loader;
-
-	/**
-	 * @var \OCP\Files\Config\IUserMountCache
-	 */
-	private $mountCache;
+	private array $rootProviders = [];
 
 	/** @var callable[] */
-	private $mountFilters = [];
+	private array $mountFilters = [];
 
-	private IEventLogger $eventLogger;
+	private bool $registerEventEmitted = false;
 
 	/**
 	 * @param \OCP\Files\Storage\IStorageFactory $loader
 	 * @param IUserMountCache $mountCache
 	 */
 	public function __construct(
-		IStorageFactory $loader,
-		IUserMountCache $mountCache,
-		IEventLogger $eventLogger
+		private IStorageFactory $loader,
+		private IUserMountCache $mountCache,
+		private IEventLogger $eventLogger,
+		private IEventDispatcher $eventDispatcher,
 	) {
-		$this->loader = $loader;
-		$this->mountCache = $mountCache;
-		$this->eventLogger = $eventLogger;
 	}
 
 	private function getMountsFromProvider(IMountProvider $provider, IUser $user, IStorageFactory $loader): array {
@@ -91,12 +77,12 @@ private function getUserMountsForProviders(IUser $user, array $providers): array
 	}
 
 	public function getMountsForUser(IUser $user): array {
-		return $this->getUserMountsForProviders($user, $this->providers);
+		return $this->getUserMountsForProviders($user, $this->getProviders());
 	}
 
 	public function getUserMountsForProviderClasses(IUser $user, array $mountProviderClasses): array {
 		$providers = array_filter(
-			$this->providers,
+			$this->getProviders(),
 			fn (IMountProvider $mountProvider) => (in_array(get_class($mountProvider), $mountProviderClasses))
 		);
 		return $this->getUserMountsForProviders($user, $providers);
@@ -107,9 +93,9 @@ public function addMountForUser(IUser $user, IMountManager $mountManager, ?calla
 		// to check for name collisions
 		$firstMounts = [];
 		if ($providerFilter) {
-			$providers = array_filter($this->providers, $providerFilter);
+			$providers = array_filter($this->getProviders(), $providerFilter);
 		} else {
-			$providers = $this->providers;
+			$providers = $this->getProviders();
 		}
 		$firstProviders = array_filter($providers, function (IMountProvider $provider) {
 			return (get_class($provider) !== 'OCA\Files_Sharing\MountProvider');
@@ -230,12 +216,17 @@ public function getRootMounts(): array {
 	}
 
 	public function clearProviders() {
+		$this->registerEventEmitted = false;
 		$this->providers = [];
 		$this->homeProviders = [];
 		$this->rootProviders = [];
 	}
 
 	public function getProviders(): array {
+		if (!$this->registerEventEmitted) {
+			$this->registerEventEmitted = true;
+			$this->eventDispatcher->dispatchTyped(new RegisterMountProviderEvent($this));
+		}
 		return $this->providers;
 	}
 }

lib/private/Server.php

@@ -889,7 +889,8 @@ public function __construct($webRoot, \OC\Config $config) {
 			$loader = $c->get(IStorageFactory::class);
 			$mountCache = $c->get(IUserMountCache::class);
 			$eventLogger = $c->get(IEventLogger::class);
-			$manager = new MountProviderCollection($loader, $mountCache, $eventLogger);
+			$eventDispatcher = $c->get(IEventDispatcher::class);
+			$manager = new MountProviderCollection($loader, $mountCache, $eventLogger, $eventDispatcher);
 
 			// builtin providers
 

lib/public/Files/Events/RegisterMountProviderEvent.php

@@ -0,0 +1,29 @@
+<?php
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\Files\Events;
+
+use OCP\EventDispatcher\Event;
+use OCP\Files\Config\IMountProviderCollection;
+
+/** @since 30.0.0 */
+class RegisterMountProviderEvent extends Event {
+	/**
+	 * @since 30.0.0
+	 */
+	public function __construct(
+		private IMountProviderCollection $mountProviderCollection,
+	) {
+	}
+
+	/**
+	 * Get the mount provider collection to register new providers
+	 * @since 30.0.0
+	 */
+	public function getProviderCollection(): IMountProviderCollection {
+		return $this->mountProviderCollection;
+	}
+}