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<?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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