[stable31] fix: refresh user mounts when removed from a group or circle that has associated team folders

lib/AppInfo/Application.php

@@ -16,6 +16,7 @@
 use OCA\Circles\Dashboard\TeamDashboardWidget;
 use OCA\Circles\Events\AddingCircleMemberEvent;
 use OCA\Circles\Events\CircleMemberAddedEvent;
+use OCA\Circles\Events\CircleMemberRemovedEvent;
 use OCA\Circles\Events\DestroyingCircleEvent;
 use OCA\Circles\Events\Files\CreatingFileShareEvent;
 use OCA\Circles\Events\Files\FileShareCreatedEvent;
@@ -26,6 +27,7 @@
 use OCA\Circles\FileSharingTeamResourceProvider;
 use OCA\Circles\Handlers\WebfingerHandler;
 use OCA\Circles\Listeners\AccountUpdated;
+use OCA\Circles\Listeners\CircleMemberRemoved;
 use OCA\Circles\Listeners\Files\AddingMemberSendMail as ListenerFilesAddingMemberSendMail;
 use OCA\Circles\Listeners\Files\CreatingShareSendMail as ListenerFilesCreatingShareSendMail;
 use OCA\Circles\Listeners\Files\DestroyingCircle as ListenerFilesDestroyingCircle;
@@ -98,6 +100,9 @@ public function register(IRegistrationContext $context): void {
 		$context->registerEventListener(UserChangedEvent::class, AccountUpdated::class);
 		$context->registerEventListener(UserDeletedEvent::class, UserDeleted::class);
 
+		// Circle Events
+		$context->registerEventListener(CircleMemberRemovedEvent::class, CircleMemberRemoved::class);
+
 		// Group Events
 		$context->registerEventListener(GroupCreatedEvent::class, GroupCreated::class);
 		$context->registerEventListener(GroupChangedEvent::class, GroupChanged::class);

lib/Listeners/CircleMemberRemoved.php

@@ -0,0 +1,78 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Circles\Listeners;
+
+use Exception;
+use OCA\Circles\Events\CircleMemberRemovedEvent;
+use OCP\App\IAppManager;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+use OCP\Files\Config\IMountProviderCollection;
+use OCP\Files\Config\IUserMountCache;
+use OCP\IUserManager;
+use OCP\Server;
+use Psr\Log\LoggerInterface;
+use Throwable;
+
+/** @template-implements IEventListener<CircleMemberRemovedEvent> */
+class CircleMemberRemoved implements IEventListener {
+	public function __construct(
+		private readonly IUserManager $userManager,
+		private readonly IAppManager $appManager,
+		private readonly IUserMountCache $userMountCache,
+		private readonly IMountProviderCollection $mountProviderCollection,
+		private readonly LoggerInterface $logger,
+	) {
+	}
+
+	public function handle(Event $event): void {
+		if (!($event instanceof CircleMemberRemovedEvent)) {
+			return;
+		}
+
+		$member = $event->getMember();
+		if ($member === null) {
+			return;
+		}
+
+		$user = $this->userManager->get($member->getUserId());
+		if ($user === null) {
+			return;
+		}
+
+		$circle = $event->getCircle();
+		if (!$this->circleHasAssociatedGroupFolder($circle->getSingleId())) {
+			return;
+		}
+
+		try {
+			// refresh list of mounts for user
+			$mounts = $this->mountProviderCollection->getMountsForUser($user);
+			$mounts[] = $this->mountProviderCollection->getHomeMountForUser($user);
+			$this->userMountCache->registerMounts($user, $mounts);
+		} catch (Exception $e) {
+			$this->logger->debug('Failed to refresh mounts for user ' . $user->getUID(), ['exception' => $e]);
+		}
+	}
+
+	private function circleHasAssociatedGroupFolder(string $circleId): bool {
+		if (!$this->appManager->isEnabledForUser('groupfolders')) {
+			return false;
+		}
+
+		try {
+			$folderManager = Server::get(\OCA\GroupFolders\Folder\FolderManager::class);
+			return $folderManager->hasFolderForCircle($circleId);
+		} catch (Throwable $e) {
+			$this->logger->debug('Failed to check if circle ' . $circleId . ' has an associated team folder', ['exception' => $e]);
+			return false;
+		}
+	}
+}

lib/Listeners/GroupMemberRemoved.php

@@ -13,29 +13,85 @@
 
 use Exception;
 use OCA\Circles\Service\SyncService;
+use OCP\App\IAppManager;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\IEventListener;
+use OCP\Files\Config\IMountProviderCollection;
+use OCP\Files\Config\IUserMountCache;
 use OCP\Group\Events\UserRemovedEvent;
+use OCP\Server;
+use Psr\Log\LoggerInterface;
+use Throwable;
 
-/** @template-implements IEventListener<UserRemovedEvent|Event> */
+/** @template-implements IEventListener<UserRemovedEvent> */
 class GroupMemberRemoved implements IEventListener {
 	/** @var SyncService */
 	private $syncService;
 
-	public function __construct(SyncService $syncService) {
+	/** @var IAppManager */
+	private $appManager;
+
+	/** @var IUserMountCache */
+	private $userMountCache;
+
+	/** @var IMountProviderCollection */
+	private $mountProviderCollection;
+
+	/** @var LoggerInterface */
+	private $logger;
+
+	public function __construct(
+		SyncService $syncService,
+		IAppManager $appManager,
+		IUserMountCache $userMountCache,
+		IMountProviderCollection $mountProviderCollection,
+		LoggerInterface $logger,
+	) {
 		$this->syncService = $syncService;
+		$this->appManager = $appManager;
+		$this->userMountCache = $userMountCache;
+		$this->mountProviderCollection = $mountProviderCollection;
+		$this->logger = $logger;
 	}
 
 	public function handle(Event $event): void {
 		if (!($event instanceof UserRemovedEvent)) {
 			return;
 		}
 
-		$group = $event->getGroup();
 		$user = $event->getUser();
+		$group = $event->getGroup();
+
 		try {
 			$this->syncService->groupMemberRemoved($group->getGID(), $user->getUID());
 		} catch (Exception $e) {
 		}
+
+		if (!$this->groupHasAssociatedGroupFolder($group->getGID())) {
+			return;
+		}
+
+		try {
+			// refresh list of mounts for user
+			$mounts = $this->mountProviderCollection->getMountsForUser($user);
+			$mounts[] = $this->mountProviderCollection->getHomeMountForUser($user);
+			$this->userMountCache->registerMounts($user, $mounts);
+		} catch (Exception $e) {
+			$this->logger->debug('Failed to refresh mounts for user ' . $user->getUID(), ['exception' => $e]);
+		}
+	}
+
+	private function groupHasAssociatedGroupFolder(string $groupId): bool {
+		if (!$this->appManager->isEnabledForUser('groupfolders')) {
+			return false;
+		}
+
+		try {
+			$folderManager = Server::get(\OCA\GroupFolders\Folder\FolderManager::class);
+			return $folderManager->hasFolderForGroup($groupId);
+		} catch (Throwable $e) {
+			$this->logger->debug('Failed to check if group ' . $groupId . ' has an associated team folder', ['exception' => $e]);
+			return false;
+		}
 	}
 }

tests/psalm-baseline.xml

@@ -424,4 +424,14 @@
       <code><![CDATA[$s[$e]]]></code>
     </InvalidArrayOffset>
   </file>
+  <file src="lib/Listeners/GroupMemberRemoved.php">
+    <UndefinedClass>
+      <code><![CDATA[\OCA\GroupFolders\Folder\FolderManager]]></code>
+    </UndefinedClass>
+  </file>
+  <file src="lib/Listeners/CircleMemberRemoved.php">
+    <UndefinedClass>
+      <code><![CDATA[\OCA\GroupFolders\Folder\FolderManager]]></code>
+    </UndefinedClass>
+  </file>
 </files>