From e23e89f3849d21199990566476420f4a670138c2 Mon Sep 17 00:00:00 2001
From: Marcel Müller <marcel-mueller@gmx.de>
Date: Sun, 18 Feb 2024 23:10:25 +0100
Subject: feat(occ): Add user:keys:test command
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Signed-off-by: Marcel Müller <marcel-mueller@gmx.de>
---
 core/Command/User/Keys/Verify.php | 100 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 core/Command/User/Keys/Verify.php

(limited to 'core/Command')

diff --git a/core/Command/User/Keys/Verify.php b/core/Command/User/Keys/Verify.php
new file mode 100644
index 00000000000..c4264457572
--- /dev/null
+++ b/core/Command/User/Keys/Verify.php
@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2024, Marcel Müller <marcel.mueller@nextcloud.com>
+ *
+ * @author Marcel Müller <marcel.mueller@nextcloud.com>
+ *
+ * @license AGPL-3.0-or-later
+ *
+ * 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 OC\Core\Command\User\Keys;
+
+use OC\Security\IdentityProof\Manager;
+use OCP\IUser;
+use OCP\IUserManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Verify extends Command {
+	public function __construct(
+		protected IUserManager $userManager,
+		protected Manager $keyManager,
+	) {
+		parent::__construct();
+	}
+
+	protected function configure(): void {
+		$this
+			->setName('user:keys:verify')
+			->setDescription('Verify if the stored public key matches the stored private key')
+			->addArgument(
+				'user-id',
+				InputArgument::REQUIRED,
+				'User ID of the user to verify'
+			)
+		;
+	}
+
+	/**
+	 * @param InputInterface $input
+	 * @param OutputInterface $output
+	 * @return int
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		$userId = $input->getArgument('user-id');
+
+		$user = $this->userManager->get($userId);
+		if (!$user instanceof IUser) {
+			$output->writeln('Unknown user');
+			return static::FAILURE;
+		}
+
+		$key = $this->keyManager->getKey($user);
+		$publicKey = $key->getPublic();
+		$privateKey = $key->getPrivate();
+
+		$output->writeln('User public key size: ' . strlen($publicKey));
+		$output->writeln('User private key size: ' . strlen($privateKey));
+
+		// Derive the public key from the private key again to validate the stored public key
+		$opensslPrivateKey = openssl_pkey_get_private($privateKey);
+		$publicKeyDerived = openssl_pkey_get_details($opensslPrivateKey);
+		$publicKeyDerived = $publicKeyDerived['key'];
+		$output->writeln('User derived public key size: ' . strlen($publicKeyDerived));
+
+		$output->writeln('');
+
+		$output->writeln('Stored public key:');
+		$output->writeln($publicKey);
+		$output->writeln('Derived public key:');
+		$output->writeln($publicKeyDerived);
+
+		if ($publicKey != $publicKeyDerived) {
+			$output->writeln('<error>Stored public key does not match stored private key</error>');
+			return static::FAILURE;
+		}
+
+		$output->writeln('<info>Stored public key matches stored private key</info>');
+
+		return static::SUCCESS;
+	}
+}
-- 
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