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<?php
/**
* @copyright Copyright (c) 2017 Bjoern Schiessle <bjoern@schiessle.org>
*
* @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\Encryption\Command;
use OCA\Encryption\Util;
use OCP\IConfig;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ConfirmationQuestion;
class DisableMasterKey extends Command {
/** @var Util */
protected $util;
/** @var IConfig */
protected $config;
/** @var QuestionHelper */
protected $questionHelper;
/**
* @param Util $util
* @param IConfig $config
* @param QuestionHelper $questionHelper
*/
public function __construct(Util $util,
IConfig $config,
QuestionHelper $questionHelper) {
$this->util = $util;
$this->config = $config;
$this->questionHelper = $questionHelper;
parent::__construct();
}
protected function configure() {
$this
->setName('encryption:disable-master-key')
->setDescription('Disable the master key and use per-user keys instead. Only available for fresh installations with no existing encrypted data! There is no way to enable it again.');
}
protected function execute(InputInterface $input, OutputInterface $output) {
$isMasterKeyEnabled = $this->util->isMasterKeyEnabled();
if(!$isMasterKeyEnabled) {
$output->writeln('Master key already disabled');
} else {
$question = new ConfirmationQuestion(
'Warning: Only perform this operation for a fresh installations with no existing encrypted data! '
. 'There is no way to enable the master key again. '
. 'We strongly recommend to keep the master key, it provides significant performance improvements '
. 'and is easier to handle for both, users and administrators. '
. 'Do you really want to switch to per-user keys? (y/n) ', false);
if ($this->questionHelper->ask($input, $output, $question)) {
$this->config->setAppValue('encryption', 'useMasterKey', '0');
$output->writeln('Master key successfully disabled.');
} else {
$output->writeln('aborted.');
}
}
}
}
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