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BinaryUuidType.php
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BinaryUuidType.php
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<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.6.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database\Type;
use Cake\Core\Exception\CakeException;
use Cake\Database\Driver;
use Cake\Utility\Text;
use PDO;
/**
* Binary UUID type converter.
*
* Use to convert binary uuid data between PHP and the database types.
*/
class BinaryUuidType extends BaseType
{
/**
* Convert binary uuid data into the database format.
*
* Binary data is not altered before being inserted into the database.
* As PDO will handle reading file handles.
*
* @param mixed $value The value to convert.
* @param \Cake\Database\Driver $driver The driver instance to convert with.
* @return mixed
*/
public function toDatabase(mixed $value, Driver $driver): mixed
{
if (!is_string($value)) {
return $value;
}
$length = strlen($value);
if ($length !== 36 && $length !== 32) {
return null;
}
return $this->convertStringToBinaryUuid($value);
}
/**
* Generate a new binary UUID
*
* @return string A new primary key value.
*/
public function newId(): string
{
return Text::uuid();
}
/**
* Convert binary uuid into resource handles
*
* @param mixed $value The value to convert.
* @param \Cake\Database\Driver $driver The driver instance to convert with.
* @return resource|string|null
* @throws \Cake\Core\Exception\CakeException
*/
public function toPHP(mixed $value, Driver $driver): mixed
{
if ($value === null) {
return null;
}
if (is_string($value)) {
return $this->convertBinaryUuidToString($value);
}
if (is_resource($value)) {
return $value;
}
throw new CakeException(sprintf('Unable to convert %s into binary uuid.', gettype($value)));
}
/**
* @inheritDoc
*/
public function toStatement(mixed $value, Driver $driver): int
{
return PDO::PARAM_LOB;
}
/**
* Marshals flat data into PHP objects.
*
* Most useful for converting request data into PHP objects
* that make sense for the rest of the ORM/Database layers.
*
* @param mixed $value The value to convert.
* @return mixed Converted value.
*/
public function marshal(mixed $value): mixed
{
return $value;
}
/**
* Converts a binary uuid to a string representation
*
* @param mixed $binary The value to convert.
* @return string Converted value.
*/
protected function convertBinaryUuidToString(mixed $binary): string
{
$string = unpack('H*', $binary);
assert($string !== false, 'Could not unpack uuid');
/** @var array<string> $string */
$string = preg_replace(
'/([0-9a-f]{8})([0-9a-f]{4})([0-9a-f]{4})([0-9a-f]{4})([0-9a-f]{12})/',
'$1-$2-$3-$4-$5',
$string
);
return $string[1];
}
/**
* Converts a string UUID (36 or 32 char) to a binary representation.
*
* @param string $string The value to convert.
* @return string Converted value.
*/
protected function convertStringToBinaryUuid(string $string): string
{
$string = str_replace('-', '', $string);
return pack('H*', $string);
}
}