1 files changed, 61 insertions, 0 deletions
diff --git a/apps/settings/lib/SetupChecks/FileLocking.php b/apps/settings/lib/SetupChecks/FileLocking.php
new file mode 100644
index 00000000000..f683ee05f03
--- /dev/null
+++ b/apps/settings/lib/SetupChecks/FileLocking.php
@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Settings\SetupChecks;
+
+use OC\Lock\DBLockingProvider;
+use OC\Lock\NoopLockingProvider;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\Lock\ILockingProvider;
+use OCP\SetupCheck\ISetupCheck;
+use OCP\SetupCheck\SetupResult;
+
+class FileLocking implements ISetupCheck {
+	public function __construct(
+		private IL10N $l10n,
+		private IURLGenerator $urlGenerator,
+		private ILockingProvider $lockingProvider,
+	) {
+	}
+
+	public function getName(): string {
+		return $this->l10n->t('Transactional File Locking');
+	}
+
+	public function getCategory(): string {
+		return 'system';
+	}
+
+	protected function hasWorkingFileLocking(): bool {
+		return !($this->lockingProvider instanceof NoopLockingProvider);
+	}
+
+	protected function hasDBFileLocking(): bool {
+		return ($this->lockingProvider instanceof DBLockingProvider);
+	}
+
+	public function run(): SetupResult {
+		if (!$this->hasWorkingFileLocking()) {
+			return SetupResult::error(
+				$this->l10n->t('Transactional File Locking is disabled. This is not a a supported configuraton. It may lead to difficult to isolate problems including file corruption. Please remove the `\'filelocking.enabled\' => false` configuration entry from your `config.php` to avoid these problems.'),
+				$this->urlGenerator->linkToDocs('admin-transactional-locking')
+			);
+		}
+
+		if ($this->hasDBFileLocking()) {
+			return SetupResult::info(
+				$this->l10n->t('The database is used for transactional file locking. To enhance performance, please configure memcache, if available.'),
+				$this->urlGenerator->linkToDocs('admin-transactional-locking')
+			);
+		}
+
+		return SetupResult::success();
+	}
+}