/**
* @param $keyName
* @return bool|string
* @throws \Exception
*/
public function getKey($keyName)
{
if (!is_callable($this->privateKeyCallback)) {
throw new \Exception("Missing private key callback");
}
$SafeController = new SafeController();
$SafeController->setContainer($this->getContainer());
$SecretController = new SecretController();
$SecretController->setContainer($this->getContainer());
$safe = $this->getSafe();
if (is_string($safe)) {
$safe = $SafeController->view($this->getSafe());
if (!$safe) {
throw new \Exception("Invalid Portunus safe");
}
}
$secret = $SecretController->view($safe, $keyName);
$callback = $this->privateKeyCallback;
$privateKeyString = $callback($safe->getName());
if (empty($privateKeyString)) {
throw new \Exception("Invalid private key");
}
$PrivateKey = new PrivateKey();
$PrivateKey->setKey($privateKeyString);
try {
$result = $secret->getValue($PrivateKey);
} catch (\Exception $e) {
$result = false;
}
return $result;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$SafeController = new SafeController();
$SecretController = new SecretController();
$safeName = $input->getArgument('safe');
if (empty($safeName)) {
$safeNames = $SafeController->getSafeNames();
$helper = $this->getHelper('question');
$question = new ChoiceQuestion('<question>Please select the safe for this secret:</question> ', $safeNames);
$safeName = $helper->ask($input, $output, $question);
}
if (empty($safeName)) {
throw new \Exception("Invalid safe name");
}
$output->writeln(sprintf("<info>Using safe '%s'... </info>", $safeName));
$safe = $SafeController->view($safeName);
$keyName = $input->getArgument('key');
if (empty($keyName)) {
$keyNames = $SecretController->getKeys($safe);
$helper = $this->getHelper('question');
$question = new ChoiceQuestion('<question>Please select the key to decrypt:</question> ', $keyNames);
$keyName = $helper->ask($input, $output, $question);
}
if (empty($keyName)) {
throw new \Exception("Invalid key name");
}
$privateKey = $input->getArgument('privatekey');
if (empty($privateKey) || !file_exists($privateKey)) {
throw new \Exception("Invalid private key");
}
$output->writeln('');
$output->write(sprintf("Decrypting secret '%s'... ", $keyName));
$PrivateKey = new PrivateKey();
$PrivateKey->setKey(file_get_contents($privateKey));
try {
$secret = $SecretController->view($safe, $keyName);
$plainText = $secret->getValue($PrivateKey);
} catch (\Exception $e) {
$output->writeln('<error>FAILED</error>');
$output->writeln('');
$output->writeln('<error>' . $e->getMessage() . '</error>');
return;
}
$output->writeln('<info>DONE</info>');
$output->writeln('');
$output->writeln(sprintf("<comment>'%s'</comment> = '%s'", $keyName, $plainText));
$output->writeln('');
}
public function getValue(PrivateKey $privateKey = null)
{
$value = $this->value;
if (!$privateKey) {
return $value;
}
$chunkSize = $privateKey->getKeySize() / 8;
$chunkCount = intval(ceil(strlen($value) / $chunkSize));
$plainText = '';
for ($i = 0; $i < $chunkCount; $i++) {
$chunkData = substr($value, $i * $chunkSize, $chunkSize);
$plainText .= $privateKey->decrypt($chunkData);
}
if (empty($plainText)) {
throw new \Exception(sprintf("Error decrypting text - OpenSSL Error string '%s'", openssl_error_string()));
}
return $plainText;
}
