1 files changed, 98 insertions, 0 deletions
diff --git a/apps/files/lib/Command/Object/Multi/Users.php b/apps/files/lib/Command/Object/Multi/Users.php
new file mode 100644
index 00000000000..e8f7d012641
--- /dev/null
+++ b/apps/files/lib/Command/Object/Multi/Users.php
@@ -0,0 +1,98 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2025 Robin Appelman <robin@icewind.nl>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Files\Command\Object\Multi;
+
+use OC\Core\Command\Base;
+use OC\Files\ObjectStore\PrimaryObjectStoreConfig;
+use OCP\IConfig;
+use OCP\IUser;
+use OCP\IUserManager;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Users extends Base {
+	public function __construct(
+		private readonly IUserManager $userManager,
+		private readonly PrimaryObjectStoreConfig $objectStoreConfig,
+		private readonly IConfig $config,
+	) {
+		parent::__construct();
+	}
+
+	protected function configure(): void {
+		parent::configure();
+		$this
+			->setName('files:object:multi:users')
+			->setDescription('Get the mapping between users and object store buckets')
+			->addOption('bucket', 'b', InputOption::VALUE_REQUIRED, 'Only list users using the specified bucket')
+			->addOption('object-store', 'o', InputOption::VALUE_REQUIRED, 'Only list users using the specified object store configuration')
+			->addOption('user', 'u', InputOption::VALUE_REQUIRED, 'Only show the mapping for the specified user, ignores all other options');
+	}
+
+	public function execute(InputInterface $input, OutputInterface $output): int {
+		if ($userId = $input->getOption('user')) {
+			$user = $this->userManager->get($userId);
+			if (!$user) {
+				$output->writeln("<error>User $userId not found</error>");
+				return 1;
+			}
+			$users = new \ArrayIterator([$user]);
+		} else {
+			$bucket = (string)$input->getOption('bucket');
+			$objectStore = (string)$input->getOption('object-store');
+			if ($bucket !== '' && $objectStore === '') {
+				$users = $this->getUsers($this->config->getUsersForUserValue('homeobjectstore', 'bucket', $bucket));
+			} elseif ($bucket === '' && $objectStore !== '') {
+				$users = $this->getUsers($this->config->getUsersForUserValue('homeobjectstore', 'objectstore', $objectStore));
+			} elseif ($bucket) {
+				$users = $this->getUsers(array_intersect(
+					$this->config->getUsersForUserValue('homeobjectstore', 'bucket', $bucket),
+					$this->config->getUsersForUserValue('homeobjectstore', 'objectstore', $objectStore)
+				));
+			} else {
+				$users = $this->userManager->getSeenUsers();
+			}
+		}
+
+		$this->writeStreamingTableInOutputFormat($input, $output, $this->infoForUsers($users), 100);
+		return 0;
+	}
+
+	/**
+	 * @param string[] $userIds
+	 * @return \Iterator<IUser>
+	 */
+	private function getUsers(array $userIds): \Iterator {
+		foreach ($userIds as $userId) {
+			$user = $this->userManager->get($userId);
+			if ($user) {
+				yield $user;
+			}
+		}
+	}
+
+	/**
+	 * @param \Iterator<IUser> $users
+	 * @return \Iterator<array>
+	 */
+	private function infoForUsers(\Iterator $users): \Iterator {
+		foreach ($users as $user) {
+			yield $this->infoForUser($user);
+		}
+	}
+
+	private function infoForUser(IUser $user): array {
+		return [
+			'user' => $user->getUID(),
+			'object-store' => $this->objectStoreConfig->getObjectStoreForUser($user),
+			'bucket' => $this->objectStoreConfig->getSetBucketForUser($user) ?? 'unset',
+		];
+	}
+}