1 files changed, 63 insertions, 0 deletions
diff --git a/apps/settings/lib/SetupChecks/RandomnessSecure.php b/apps/settings/lib/SetupChecks/RandomnessSecure.php
new file mode 100644
index 00000000000..c30d4f2f79a
--- /dev/null
+++ b/apps/settings/lib/SetupChecks/RandomnessSecure.php
@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCA\Settings\SetupChecks;
+
+use OCP\IConfig;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\Security\ISecureRandom;
+use OCP\SetupCheck\ISetupCheck;
+use OCP\SetupCheck\SetupResult;
+
+class RandomnessSecure implements ISetupCheck {
+	public function __construct(
+		private IL10N $l10n,
+		private IConfig $config,
+		private IURLGenerator $urlGenerator,
+		private ISecureRandom $secureRandom,
+	) {
+	}
+
+	public function getName(): string {
+		return $this->l10n->t('Random generator');
+	}
+
+	public function getCategory(): string {
+		return 'security';
+	}
+
+	public function run(): SetupResult {
+		try {
+			$this->secureRandom->generate(1);
+		} catch (\Exception $ex) {
+			return SetupResult::error(
+				$this->l10n->t('No suitable source for randomness found by PHP which is highly discouraged for security reasons.'),
+				$this->urlGenerator->linkToDocs('admin-security')
+			);
+		}
+		return SetupResult::success($this->l10n->t('Secure'));
+	}
+}