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<?php |
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namespace Carnage\EncryptedColumn\Dbal; |
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use Carnage\EncryptedColumn\Service\EncryptionService; |
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use Carnage\EncryptedColumn\ValueObject\ValueHolder; |
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use Doctrine\DBAL\Platforms\AbstractPlatform; |
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use Doctrine\DBAL\Types\ConversionException; |
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use Doctrine\DBAL\Types\Type; |
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use Carnage\EncryptedColumn\ValueObject\EncryptedColumn as EncryptedColumnVO; |
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/** |
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* Object type for reading from legacy encrypted column extensions and converting to a better format |
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* |
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* This type is a drop in replacement for the EncryptedColumn class but drops some strictness to allow for |
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* reading data that is not in an expected format. You should only use this if you have existing data in |
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* your database you wish to convert |
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* |
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* Class EncryptedColumn |
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*/ |
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class EncryptedColumnLegacySupport extends Type |
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{ |
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const ENCRYPTED = 'encrypted'; |
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/** |
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* @var EncryptionService |
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*/ |
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private $encryptionService; |
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public static function create(EncryptionService $encryptionService) |
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{ |
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Type::addType(EncryptedColumnLegacySupport::ENCRYPTED, EncryptedColumnLegacySupport::class); |
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/** @var EncryptedColumn $instance */ |
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$instance = Type::getType(EncryptedColumnLegacySupport::ENCRYPTED); |
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$instance->encryptionService = $encryptionService; |
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} |
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public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform) |
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{ |
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return $platform->getClobTypeDeclarationSQL($fieldDeclaration); |
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} |
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public function requiresSQLCommentHint(AbstractPlatform $platform) |
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{ |
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return true; |
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} |
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public function getName() |
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{ |
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return self::ENCRYPTED; |
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} |
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public function convertToPHPValue($value, AbstractPlatform $platform) |
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{ |
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if ($value === null) { |
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return null; |
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} |
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try { |
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$decoded = $this->decodeJson($value); |
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} catch (ConversionException $e) { |
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//The data wasn't in the format we expected, assume it is legacy data which needs converting |
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//Drop in some defaults to allow the library to handle it. |
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$decoded = [ |
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'data' => $value, |
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'classname' => ValueHolder::class, |
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'serializer' => 'legacy', |
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'encryptor' => 'legacy' |
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]; |
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} |
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return $this->encryptionService->decryptField(EncryptedColumnVO::fromArray($decoded)); |
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} |
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View Code Duplication |
public function convertToDatabaseValue($value, AbstractPlatform $platform) |
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{ |
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if ($value === null) { |
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return null; |
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} |
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return json_encode($this->encryptionService->encryptField($value)); |
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} |
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/** |
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* Based on: https://github.com/schmittjoh/serializer/blob/master/src/JMS/Serializer/JsonDeserializationVisitor.php |
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* |
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* @param $value |
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* @return mixed |
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* @throws ConversionException |
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*/ |
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View Code Duplication |
private function decodeJson($value) |
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{ |
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$decoded = json_decode($value, true); |
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switch (json_last_error()) { |
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case JSON_ERROR_NONE: |
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if (!is_array($decoded)) { |
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throw ConversionException::conversionFailed($value, 'Json was not an array'); |
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} |
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return $decoded; |
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case JSON_ERROR_DEPTH: |
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throw ConversionException::conversionFailed($value, 'Could not decode JSON, maximum stack depth exceeded.'); |
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case JSON_ERROR_STATE_MISMATCH: |
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throw ConversionException::conversionFailed($value, 'Could not decode JSON, underflow or the nodes mismatch.'); |
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case JSON_ERROR_CTRL_CHAR: |
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throw ConversionException::conversionFailed($value, 'Could not decode JSON, unexpected control character found.'); |
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case JSON_ERROR_SYNTAX: |
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throw ConversionException::conversionFailed($value, 'Could not decode JSON, syntax error - malformed JSON.'); |
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case JSON_ERROR_UTF8: |
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throw ConversionException::conversionFailed($value, 'Could not decode JSON, malformed UTF-8 characters (incorrectly encoded?)'); |
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default: |
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throw ConversionException::conversionFailed($value, 'Could not decode Json'); |
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} |
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} |
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} |
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This check looks for access to properties that are not accessible from the current context.
If you need to make a property accessible to another context you can either raise its visibility level or provide an accessible getter in the defining class.