Add api for authoritative mount providers and implement it for files_external

apps/files_external/composer/composer/autoload_classmap.php

@@ -37,6 +37,9 @@
     'OCA\\Files_External\\Controller\\StoragesController' => $baseDir . '/../lib/Controller/StoragesController.php',
     'OCA\\Files_External\\Controller\\UserGlobalStoragesController' => $baseDir . '/../lib/Controller/UserGlobalStoragesController.php',
     'OCA\\Files_External\\Controller\\UserStoragesController' => $baseDir . '/../lib/Controller/UserStoragesController.php',
+    'OCA\\Files_External\\Event\\StorageCreatedEvent' => $baseDir . '/../lib/Event/StorageCreatedEvent.php',
+    'OCA\\Files_External\\Event\\StorageDeletedEvent' => $baseDir . '/../lib/Event/StorageDeletedEvent.php',
+    'OCA\\Files_External\\Event\\StorageUpdatedEvent' => $baseDir . '/../lib/Event/StorageUpdatedEvent.php',
     'OCA\\Files_External\\Lib\\Auth\\AmazonS3\\AccessKey' => $baseDir . '/../lib/Lib/Auth/AmazonS3/AccessKey.php',
     'OCA\\Files_External\\Lib\\Auth\\AuthMechanism' => $baseDir . '/../lib/Lib/Auth/AuthMechanism.php',
     'OCA\\Files_External\\Lib\\Auth\\Builtin' => $baseDir . '/../lib/Lib/Auth/Builtin.php',
@@ -117,6 +120,7 @@
     'OCA\\Files_External\\Service\\GlobalStoragesService' => $baseDir . '/../lib/Service/GlobalStoragesService.php',
     'OCA\\Files_External\\Service\\ImportLegacyStoragesService' => $baseDir . '/../lib/Service/ImportLegacyStoragesService.php',
     'OCA\\Files_External\\Service\\LegacyStoragesService' => $baseDir . '/../lib/Service/LegacyStoragesService.php',
+    'OCA\\Files_External\\Service\\MountCacheService' => $baseDir . '/../lib/Service/MountCacheService.php',
     'OCA\\Files_External\\Service\\StoragesService' => $baseDir . '/../lib/Service/StoragesService.php',
     'OCA\\Files_External\\Service\\UserGlobalStoragesService' => $baseDir . '/../lib/Service/UserGlobalStoragesService.php',
     'OCA\\Files_External\\Service\\UserStoragesService' => $baseDir . '/../lib/Service/UserStoragesService.php',

apps/files_external/composer/composer/autoload_static.php

@@ -52,6 +52,9 @@ class ComposerStaticInitFiles_External
         'OCA\\Files_External\\Controller\\StoragesController' => __DIR__ . '/..' . '/../lib/Controller/StoragesController.php',
         'OCA\\Files_External\\Controller\\UserGlobalStoragesController' => __DIR__ . '/..' . '/../lib/Controller/UserGlobalStoragesController.php',
         'OCA\\Files_External\\Controller\\UserStoragesController' => __DIR__ . '/..' . '/../lib/Controller/UserStoragesController.php',
+        'OCA\\Files_External\\Event\\StorageCreatedEvent' => __DIR__ . '/..' . '/../lib/Event/StorageCreatedEvent.php',
+        'OCA\\Files_External\\Event\\StorageDeletedEvent' => __DIR__ . '/..' . '/../lib/Event/StorageDeletedEvent.php',
+        'OCA\\Files_External\\Event\\StorageUpdatedEvent' => __DIR__ . '/..' . '/../lib/Event/StorageUpdatedEvent.php',
         'OCA\\Files_External\\Lib\\Auth\\AmazonS3\\AccessKey' => __DIR__ . '/..' . '/../lib/Lib/Auth/AmazonS3/AccessKey.php',
         'OCA\\Files_External\\Lib\\Auth\\AuthMechanism' => __DIR__ . '/..' . '/../lib/Lib/Auth/AuthMechanism.php',
         'OCA\\Files_External\\Lib\\Auth\\Builtin' => __DIR__ . '/..' . '/../lib/Lib/Auth/Builtin.php',
@@ -132,6 +135,7 @@ class ComposerStaticInitFiles_External
         'OCA\\Files_External\\Service\\GlobalStoragesService' => __DIR__ . '/..' . '/../lib/Service/GlobalStoragesService.php',
         'OCA\\Files_External\\Service\\ImportLegacyStoragesService' => __DIR__ . '/..' . '/../lib/Service/ImportLegacyStoragesService.php',
         'OCA\\Files_External\\Service\\LegacyStoragesService' => __DIR__ . '/..' . '/../lib/Service/LegacyStoragesService.php',
+        'OCA\\Files_External\\Service\\MountCacheService' => __DIR__ . '/..' . '/../lib/Service/MountCacheService.php',
         'OCA\\Files_External\\Service\\StoragesService' => __DIR__ . '/..' . '/../lib/Service/StoragesService.php',
         'OCA\\Files_External\\Service\\UserGlobalStoragesService' => __DIR__ . '/..' . '/../lib/Service/UserGlobalStoragesService.php',
         'OCA\\Files_External\\Service\\UserStoragesService' => __DIR__ . '/..' . '/../lib/Service/UserStoragesService.php',

apps/files_external/lib/AppInfo/Application.php

@@ -11,6 +11,9 @@
 use OCA\Files_External\Config\ConfigAdapter;
 use OCA\Files_External\Config\UserPlaceholderHandler;
 use OCA\Files_External\ConfigLexicon;
+use OCA\Files_External\Event\StorageCreatedEvent;
+use OCA\Files_External\Event\StorageDeletedEvent;
+use OCA\Files_External\Event\StorageUpdatedEvent;
 use OCA\Files_External\Lib\Auth\AmazonS3\AccessKey;
 use OCA\Files_External\Lib\Auth\Builtin;
 use OCA\Files_External\Lib\Auth\NullMechanism;
@@ -42,19 +45,22 @@
 use OCA\Files_External\Lib\Config\IBackendProvider;
 use OCA\Files_External\Listener\GroupDeletedListener;
 use OCA\Files_External\Listener\LoadAdditionalListener;
-use OCA\Files_External\Listener\StorePasswordListener;
 use OCA\Files_External\Listener\UserDeletedListener;
 use OCA\Files_External\Service\BackendService;
+use OCA\Files_External\Service\MountCacheService;
 use OCP\AppFramework\App;
 use OCP\AppFramework\Bootstrap\IBootContext;
 use OCP\AppFramework\Bootstrap\IBootstrap;
 use OCP\AppFramework\Bootstrap\IRegistrationContext;
 use OCP\AppFramework\QueryException;
 use OCP\Files\Config\IMountProviderCollection;
+use OCP\Group\Events\BeforeGroupDeletedEvent;
 use OCP\Group\Events\GroupDeletedEvent;
-use OCP\User\Events\PasswordUpdatedEvent;
+use OCP\Group\Events\UserAddedEvent;
+use OCP\Group\Events\UserRemovedEvent;
+use OCP\User\Events\PostLoginEvent;
+use OCP\User\Events\UserCreatedEvent;
 use OCP\User\Events\UserDeletedEvent;
-use OCP\User\Events\UserLoggedInEvent;
 
 /**
  * @package OCA\Files_External\AppInfo
@@ -75,8 +81,15 @@ public function register(IRegistrationContext $context): void {
 		$context->registerEventListener(UserDeletedEvent::class, UserDeletedListener::class);
 		$context->registerEventListener(GroupDeletedEvent::class, GroupDeletedListener::class);
 		$context->registerEventListener(LoadAdditionalScriptsEvent::class, LoadAdditionalListener::class);
-		$context->registerEventListener(UserLoggedInEvent::class, StorePasswordListener::class);
-		$context->registerEventListener(PasswordUpdatedEvent::class, StorePasswordListener::class);
+		$context->registerEventListener(StorageCreatedEvent::class, MountCacheService::class);
+		$context->registerEventListener(StorageDeletedEvent::class, MountCacheService::class);
+		$context->registerEventListener(StorageUpdatedEvent::class, MountCacheService::class);
+		$context->registerEventListener(BeforeGroupDeletedEvent::class, MountCacheService::class);
+		$context->registerEventListener(UserCreatedEvent::class, MountCacheService::class);
+		$context->registerEventListener(UserAddedEvent::class, MountCacheService::class);
+		$context->registerEventListener(UserRemovedEvent::class, MountCacheService::class);
+		$context->registerEventListener(PostLoginEvent::class, MountCacheService::class);
+
 		$context->registerConfigLexicon(ConfigLexicon::class);
 	}
 

apps/files_external/lib/Config/ConfigAdapter.php

@@ -17,6 +17,7 @@
 use OCA\Files_External\Service\UserGlobalStoragesService;
 use OCA\Files_External\Service\UserStoragesService;
 use OCP\AppFramework\QueryException;
+use OCP\Files\Config\IAuthoritativeMountProvider;
 use OCP\Files\Config\IMountProvider;
 use OCP\Files\Mount\IMountPoint;
 use OCP\Files\ObjectStore\IObjectStore;
@@ -32,7 +33,7 @@
 /**
  * Make the old files_external config work with the new public mount config api
  */
-class ConfigAdapter implements IMountProvider {
+class ConfigAdapter implements IMountProvider, IAuthoritativeMountProvider {
 	public function __construct(
 		private UserStoragesService $userStoragesService,
 		private UserGlobalStoragesService $userGlobalStoragesService,
@@ -73,6 +74,11 @@ private function prepareStorageConfig(StorageConfig &$storage, IUser $user): voi
 		$storage->getBackend()->manipulateStorageConfig($storage, $user);
 	}
 
+	public function constructStorageForUser(IUser $user, StorageConfig $storage) {
+		$this->prepareStorageConfig($storage, $user);
+		return $this->constructStorage($storage);
+	}
+
 	/**
 	 * Construct the storage implementation
 	 *
@@ -105,8 +111,7 @@ public function getMountsForUser(IUser $user, IStorageFactory $loader) {
 
 		$storages = array_map(function (StorageConfig $storageConfig) use ($user) {
 			try {
-				$this->prepareStorageConfig($storageConfig, $user);
-				return $this->constructStorage($storageConfig);
+				return $this->constructStorageForUser($user, $storageConfig);
 			} catch (\Exception $e) {
 				// propagate exception into filesystem
 				return new FailedStorage(['exception' => $e]);
@@ -123,7 +128,7 @@ public function getMountsForUser(IUser $user, IStorageFactory $loader) {
 				$availability = $storage->getAvailability();
 				if (!$availability['available'] && !Availability::shouldRecheck($availability)) {
 					$storage = new FailedStorage([
-						'exception' => new StorageNotAvailableException('Storage with mount id ' . $storageConfig->getId() . ' is not available')
+						'exception' => new StorageNotAvailableException('Storage with mount id ' . $storageConfig->getId() . ' is not available'),
 					]);
 				}
 			} catch (\Exception $e) {
@@ -148,7 +153,7 @@ public function getMountsForUser(IUser $user, IStorageFactory $loader) {
 					null,
 					$loader,
 					$storageConfig->getMountOptions(),
-					$storageConfig->getId()
+					$storageConfig->getId(),
 				);
 			} else {
 				return new SystemMountPoint(
@@ -158,7 +163,7 @@ public function getMountsForUser(IUser $user, IStorageFactory $loader) {
 					null,
 					$loader,
 					$storageConfig->getMountOptions(),
-					$storageConfig->getId()
+					$storageConfig->getId(),
 				);
 			}
 		}, $storageConfigs, $availableStorages);

apps/files_external/lib/Event/StorageCreatedEvent.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2025 Robin Appelman <[email protected]>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Files_External\Event;
+
+use OCA\Files_External\Lib\StorageConfig;
+use OCP\EventDispatcher\Event;
+
+class StorageCreatedEvent extends Event {
+	public function __construct(
+		private readonly StorageConfig $newConfig,
+	) {
+		parent::__construct();
+	}
+
+	public function getNewConfig(): StorageConfig {
+		return $this->newConfig;
+	}
+}

apps/files_external/lib/Event/StorageDeletedEvent.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2025 Robin Appelman <[email protected]>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Files_External\Event;
+
+use OCA\Files_External\Lib\StorageConfig;
+use OCP\EventDispatcher\Event;
+
+class StorageDeletedEvent extends Event {
+	public function __construct(
+		private readonly StorageConfig $oldConfig,
+	) {
+		parent::__construct();
+	}
+
+	public function getOldConfig(): StorageConfig {
+		return $this->oldConfig;
+	}
+}

apps/files_external/lib/Event/StorageUpdatedEvent.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2025 Robin Appelman <[email protected]>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Files_External\Event;
+
+use OCA\Files_External\Lib\StorageConfig;
+use OCP\EventDispatcher\Event;
+
+class StorageUpdatedEvent extends Event {
+	public function __construct(
+		private readonly StorageConfig $oldConfig,
+		private readonly StorageConfig $newConfig,
+	) {
+		parent::__construct();
+	}
+
+	public function getOldConfig(): StorageConfig {
+		return $this->oldConfig;
+	}
+
+	public function getNewConfig(): StorageConfig {
+		return $this->newConfig;
+	}
+}

apps/files_external/lib/Lib/StorageConfig.php

@@ -12,6 +12,7 @@
 use OCA\Files_External\Lib\Auth\IUserProvided;
 use OCA\Files_External\Lib\Backend\Backend;
 use OCA\Files_External\ResponseDefinitions;
+use OCP\IUser;
 
 /**
  * External storage configuration
@@ -435,4 +436,23 @@ protected function formatStorageForUI(): void {
 			}
 		}
 	}
+
+	public function getMountPointForUser(IUser $user): string {
+		return '/' . $user->getUID() . '/files/' . trim($this->mountPoint, '/') . '/';
+	}
+
+	public function __clone() {
+		$clone = new StorageConfig($this->getId());
+		$clone->setBackend(clone $this->getBackend());
+		$clone->setAuthMechanism(clone $this->getAuthMechanism());
+		$clone->setBackendOptions($this->getBackendOptions());
+		$clone->setMountPoint($this->getMountPoint());
+		$clone->setStatus($this->getStatus(), $this->getStatusMessage());
+		$clone->setPriority($this->getPriority());
+		$clone->setApplicableUsers($this->getApplicableUsers());
+		$clone->setApplicableGroups($this->getApplicableGroups());
+		$clone->setMountOptions($this->getMountOptions());
+		$clone->setType($this->getType());
+		return $clone;
+	}
 }

apps/files_external/lib/Service/DBConfigService.php

@@ -80,6 +80,32 @@ public function getMountsForUser($userId, $groupIds) {
 		return $this->getMountsFromQuery($query);
 	}
 
+	public function getMountsForGroups($groupIds) {
+		$builder = $this->connection->getQueryBuilder();
+		$query = $builder->select(['m.mount_id', 'mount_point', 'storage_backend', 'auth_backend', 'priority', 'm.type'])
+			->from('external_mounts', 'm')
+			->innerJoin('m', 'external_applicable', 'a', $builder->expr()->eq('m.mount_id', 'a.mount_id'))
+			->where($builder->expr()->andX( // mounts for group
+				$builder->expr()->eq('a.type', $builder->createNamedParameter(self::APPLICABLE_TYPE_GROUP, IQueryBuilder::PARAM_INT)),
+				$builder->expr()->in('a.value', $builder->createNamedParameter($groupIds, IQueryBuilder::PARAM_STR_ARRAY)),
+			));
+
+		return $this->getMountsFromQuery($query);
+	}
+
+	public function getGlobalMounts() {
+		$builder = $this->connection->getQueryBuilder();
+		$query = $builder->select(['m.mount_id', 'mount_point', 'storage_backend', 'auth_backend', 'priority', 'm.type'])
+			->from('external_mounts', 'm')
+			->innerJoin('m', 'external_applicable', 'a', $builder->expr()->eq('m.mount_id', 'a.mount_id'))
+			->where($builder->expr()->andX( // global mounts
+				$builder->expr()->eq('a.type', $builder->createNamedParameter(self::APPLICABLE_TYPE_GLOBAL, IQueryBuilder::PARAM_INT)),
+				$builder->expr()->isNull('a.value'),
+			), );
+
+		return $this->getMountsFromQuery($query);
+	}
+
 	public function modifyMountsOnUserDelete(string $uid): void {
 		$this->modifyMountsOnDelete($uid, self::APPLICABLE_TYPE_USER);
 	}

apps/files_external/lib/Service/GlobalStoragesService.php

@@ -8,8 +8,12 @@
 namespace OCA\Files_External\Service;
 
 use OC\Files\Filesystem;
+use OCA\Files_External\Event\StorageCreatedEvent;
+use OCA\Files_External\Event\StorageDeletedEvent;
+use OCA\Files_External\Event\StorageUpdatedEvent;
 use OCA\Files_External\Lib\StorageConfig;
 use OCA\Files_External\MountConfig;
+use OCP\IGroup;
 
 /**
  * Service class to manage global external storage
@@ -62,9 +66,13 @@ protected function triggerHooks(StorageConfig $storage, $signal) {
 	protected function triggerChangeHooks(StorageConfig $oldStorage, StorageConfig $newStorage) {
 		// if mount point changed, it's like a deletion + creation
 		if ($oldStorage->getMountPoint() !== $newStorage->getMountPoint()) {
+			$this->eventDispatcher->dispatchTyped(new StorageDeletedEvent($oldStorage));
+			$this->eventDispatcher->dispatchTyped(new StorageCreatedEvent($newStorage));
 			$this->triggerHooks($oldStorage, Filesystem::signal_delete_mount);
 			$this->triggerHooks($newStorage, Filesystem::signal_create_mount);
 			return;
+		} else {
+			$this->eventDispatcher->dispatchTyped(new StorageUpdatedEvent($oldStorage, $newStorage));
 		}
 
 		$userAdditions = array_diff($newStorage->getApplicableUsers(), $oldStorage->getApplicableUsers());
@@ -162,4 +170,31 @@ public function getStorageForAllUsers() {
 
 		return array_combine($keys, $configs);
 	}
+
+	/**
+	 * Gets all storages for the group, not including any global storages
+	 * @return StorageConfig[]
+	 */
+	public function getAllStoragesForGroup(IGroup $group): array {
+		$mounts = $this->dbConfig->getMountsForGroups([$group->getGID()]);
+		$configs = array_map($this->getStorageConfigFromDBMount(...), $mounts);
+		$configs = array_filter($configs, static fn (?StorageConfig $config): bool => $config instanceof StorageConfig);
+		$keys = array_map(static fn (StorageConfig $config) => $config->getId(), $configs);
+
+		$storages = array_combine($keys, $configs);
+		return array_filter($storages, $this->validateStorage(...));
+	}
+
+	/**
+	 * @return StorageConfig[]
+	 */
+	public function getAllGlobalStorages(): array {
+		$mounts = $this->dbConfig->getGlobalMounts();
+
+		$configs = array_map($this->getStorageConfigFromDBMount(...), $mounts);
+		$configs = array_filter($configs, static fn (?StorageConfig $config): bool => $config instanceof StorageConfig);
+		$keys = array_map(static fn (StorageConfig $config) => $config->getId(), $configs);
+		$storages = array_combine($keys, $configs);
+		return array_filter($storages, $this->validateStorage(...));
+	}
 }