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<?php |
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namespace Carnage\EncryptedColumn\Service; |
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use Carnage\EncryptedColumn\Encryptor\EncryptorInterface; |
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use Carnage\EncryptedColumn\Serializer\SerializerInterface; |
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use Carnage\EncryptedColumn\ValueObject\EncryptedColumn as EncryptedColumnVO; |
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use ProxyManager\Factory\LazyLoadingValueHolderFactory; |
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use ProxyManager\Proxy\LazyLoadingInterface; |
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use ProxyManager\Proxy\VirtualProxyInterface; |
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use Psr\Container\ContainerInterface; |
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class EncryptionService |
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{ |
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/** |
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* @var EncryptorInterface |
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*/ |
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private $encryptor; |
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/** |
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* @var SerializerInterface |
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*/ |
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private $serializer; |
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/** |
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* @var EncryptedColumnVO[] |
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*/ |
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private $originalValues = []; |
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/** |
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* @var ContainerInterface |
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*/ |
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private $encryptors; |
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/** |
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* @var ContainerInterface |
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*/ |
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private $serializers; |
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/** |
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* @var ContainerInterface |
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*/ |
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private $keys; |
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/** |
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* EncryptionService constructor. |
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* @param EncryptorInterface $encryptor |
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* @param SerializerInterface $serializer |
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* @param ContainerInterface $encryptors |
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* @param ContainerInterface $serializers |
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*/ |
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public function __construct( |
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EncryptorInterface $encryptor, |
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SerializerInterface $serializer, |
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ContainerInterface $encryptors, |
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ContainerInterface $serializers, |
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ContainerInterface $keys |
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) { |
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$this->encryptor = $encryptor; |
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$this->serializer = $serializer; |
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$this->encryptors = $encryptors; |
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$this->serializers = $serializers; |
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$this->keys = $keys; |
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} |
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public function decryptField(EncryptedColumnVO $value) |
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{ |
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$initializer = $this->createInitializer($value); |
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$factory = new LazyLoadingValueHolderFactory(); |
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$proxy = $factory->createProxy($value->getClassname(), $initializer); |
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$this->originalValues[spl_object_hash($proxy)] = $value; |
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return $proxy; |
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} |
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public function encryptField($value): EncryptedColumnVO |
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{ |
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if ($value instanceof LazyLoadingInterface) { |
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/** @var VirtualProxyInterface $value */ |
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// If the value hasn't been decrypted; it hasn't been changed. Don't bother reencrypting unless it |
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// was encrypted using a different configuration |
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if (!$value->isProxyInitialized()) { |
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$original = $this->originalValues[spl_object_hash($value)]; |
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if ( |
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!$original->needsReencryption($this->encryptor->getIdentifier(), $this->serializer->getIdentifier()) |
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) { |
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return $original; |
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} |
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} |
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//we don't want to encrypt a proxy. |
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$value = $value->getWrappedValueHolderValue(); |
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} |
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if (!is_object($value)) { |
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throw new \Exception('This column type only supports encrypting objects'); |
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} |
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$key = $this->keys->get('default'); |
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$data = $this->encryptor->encrypt($this->serializer->serialize($value), $key); |
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return new EncryptedColumnVO( |
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get_class($value), |
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$data, |
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$this->encryptor->getIdentifier(), |
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$this->serializer->getIdentifier(), |
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$key->getIdentifier() |
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); |
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} |
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/** |
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* @param EncryptedColumnVO $value |
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* @return \Closure |
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*/ |
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private function createInitializer(EncryptedColumnVO $value): \Closure |
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{ |
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$serializer = $this->serializers->get($value->getSerializerIdentifier()->toString()); |
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$encryptor = $this->encryptors->get($value->getEncryptorIdentifier()->toString()); |
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$key = $this->keys->get($value->getKeyIdentifier()->toString()); |
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return function(& $wrappedObject, LazyLoadingInterface $proxy, $method, array $parameters, & $initializer) use ($serializer, $encryptor, $key, $value) { |
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$initializer = null; |
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$wrappedObject = $serializer->unserialize($encryptor->decrypt($value->getData(), $key)); |
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return true; |
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}; |
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} |
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} |
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carnage /
doctrine-encrypted-column
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.