setName('backup:key:init')
->setDescription('Create the backup key, protected by a passphrase you keep safe')
->addOption('passphrase-file', null, InputOption::VALUE_REQUIRED, 'Read the passphrase from this file instead of asking')
->setHelp(<<<'HELP'
Creates the master key that encrypts all backups of this installation.
The server keeps the key (encrypted with this instance's secret) so scheduled backups can run.
A copy protected by your passphrase goes into every backup location and into the recovery kit
(occ backup:key:kit). To restore on a new server you need the recovery kit and the passphrase.
Example:
occ backup:key:init
occ backup:key:kit --output=/root/ng_backup-recovery-kit.json
HELP);
}
protected function execute(InputInterface $input, OutputInterface $output): int {
if ($this->keys->isInitialized()) {
$output->writeln('A backup key already exists (fingerprint ' . $this->keys->fingerprint() . ').');
return 1;
}
$file = $input->getOption('passphrase-file');
if ($file !== null) {
$pass = rtrim((string)@file_get_contents($file), "\r\n");
} else {
$helper = $this->getHelper('question');
$q = (new Question('Passphrase (min. 12 characters): '))->setHidden(true)->setHiddenFallback(false);
$pass = (string)$helper->ask($input, $output, $q);
$again = (string)$helper->ask($input, $output, (new Question('Repeat passphrase: '))->setHidden(true)->setHiddenFallback(false));
if ($pass !== $again) {
$output->writeln('The passphrases do not match.');
return 1;
}
}
try {
$this->keys->initialize($pass);
} catch (\InvalidArgumentException $e) {
$output->writeln('' . $e->getMessage() . '');
return 1;
}
$output->writeln('Backup key created, fingerprint ' . $this->keys->fingerprint() . '.');
$output->writeln('Next: save the recovery kit with occ backup:key:kit --output=FILE and confirm with occ backup:key:confirm.');
return 0;
}
}