/**
* Saves file name and TTL for further garbage collection, increments counter of sent packages
*/
public function postPhase(StashedDataPackage $stashedDataPackage)
{
$cipherFile = $this->_cipherFileManager->create();
$fileName = $this->_yamler->getCipherFileName();
$cipherFile->setTimeOfDying($stashedDataPackage->getTimeOfDying())->setFileName($fileName);
$this->_cipherFileManager->persist($cipherFile);
$this->_packageCounterManager->incrementSentPackages();
}
/**
* Encrypts hash γ same way as during ravel process to find corresponding message
*/
public function prePhase(StashedDataPackage $stashedDataPackage)
{
$stashedDataPackage->setHashGamma($this->_hasher->hashSha($stashedDataPackage->getHashGamma()));
$cipherCredentials = $this->_yamler->readCipherFile($fileName = $stashedDataPackage->getHashGamma());
if (!$cipherCredentials) {
return $stashedDataPackage->setError('UnravelFilter::prePhase - cipher file not found');
}
$this->_flashStorage->rememberCipherFileName($stashedDataPackage->getHashGamma());
$this->_flashStorage->rememberCipherCredentials($cipherCredentials);
$stashedDataPackage->setHashGamma($this->_cipher->encrypt($stashedDataPackage->getHashGamma(), $cipherCredentials['key'], $cipherCredentials['iv']));
return $stashedDataPackage;
}
/**
* @ORM\PostLoad
*
* Decrypting data after finding one in DB
*/
public function UnravelPhase(StashedDataPackage $stashedDataPackage, LifecycleEventArgs $event)
{
//Event triggers only if hash β is present in current request
$clientHashBeta = $this->_stashedDataPackageManager->getClientHashBeta();
if ($clientHashBeta) {
$cipherCredentials = $this->_flashStorage->recallCipherCredentials();
$hashServerBeta = $this->_cipher->decrypt(stream_get_contents($stashedDataPackage->getHashBeta()), $cipherCredentials['key'], $cipherCredentials['iv']);
if ($this->_hasher->verifyHashBcrypt($clientHashBeta, $hashServerBeta)) {
$cipherData = stream_get_contents($stashedDataPackage->getData());
$stashedDataPackage->setData($this->_cipher->decrypt($cipherData, $clientHashBeta, $stashedDataPackage->getSaltBeta()));
} else {
$stashedDataPackage->setError("StashedDataPackagePhase::UnravelPhase - no record found");
}
}
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
$timeToLiveMeasureChoices = StashedDataPackage::getTimeToLiveMeasures();
$builder->add('passPhrase', 'password', ['mapped' => FALSE, 'label' => "ravel.pass_phrase.label", 'attr' => ['placeholder' => "ravel.pass_phrase.placeholder"]])->add('timeToLiveNumber', 'text', ['data' => '42', 'label' => "ravel.time_to_live_number.label", 'attr' => ['placeholder' => "ravel.time_to_live_number.placeholder"]])->add('timeToLiveMeasure', 'choice', ['choices' => array_combine($timeToLiveMeasureChoices, ["ravel.choice.minutes", "ravel.choice.hours", "ravel.choice.days"]), 'expanded' => TRUE, 'multiple' => FALSE, 'data' => $timeToLiveMeasureChoices[0], 'invalid_message' => "ravel.choice.invalid_message"])->add('data', 'textarea', ['label' => "ravel.data.label", 'attr' => ['placeholder' => "ravel.data.placeholder"]])->add('hashBeta')->add('hashGamma')->add('blankField', 'text');
}
