/**
* {@inheritDoc}
*
* @throws \UnexpectedValueException
*/
public function render(AttributeEvent $event)
{
$data = base64_decode($event->getValue());
if (false === $data) {
throw new \UnexpectedValueException('Error decoding data in the ' . $event->getAttribute() . ' attribute');
}
$event->setValue($data);
}
/**
* {@inheritDoc}
*
* @throws \UnexpectedValueException
*/
public function render(AttributeEvent $event)
{
$cipherText = $event->getValue();
// The Amazon SDK base64 encodes binary strings before it sends data to
// DynamoDB, but it does not base64 decode it after it retrieves the
// data from DynamoDB. Therefore we have to check wheter it is encoded.
if (preg_match(self::BASE64_REGEX, $cipherText)) {
$cipherText = base64_decode($cipherText);
if (false === $cipherText) {
throw new \UnexpectedValueException('Error decoding data in the ' . $event->getAttribute() . ' attribute');
}
}
$plainText = $this->cipher->decrypt($cipherText);
if (false === $plainText) {
throw new \UnexpectedValueException('Error decrypting data in the ' . $event->getAttribute() . ' attribute: Invalid key');
}
$event->setValue($plainText);
}
