initial commit; version 22.5.12042
This commit is contained in:
170
libs/Ramsey/Uuid/Codec/StringCodec.php
Normal file
170
libs/Ramsey/Uuid/Codec/StringCodec.php
Normal file
@ -0,0 +1,170 @@
|
||||
<?php
|
||||
/**
|
||||
* This file is part of the ramsey/uuid library
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*
|
||||
* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
|
||||
* @license http://opensource.org/licenses/MIT MIT
|
||||
* @link https://benramsey.com/projects/ramsey-uuid/ Documentation
|
||||
* @link https://packagist.org/packages/ramsey/uuid Packagist
|
||||
* @link https://github.com/ramsey/uuid GitHub
|
||||
*/
|
||||
|
||||
namespace Ramsey\Uuid\Codec;
|
||||
|
||||
use InvalidArgumentException;
|
||||
use Ramsey\Uuid\Builder\UuidBuilderInterface;
|
||||
use Ramsey\Uuid\Exception\InvalidUuidStringException;
|
||||
use Ramsey\Uuid\Uuid;
|
||||
use Ramsey\Uuid\UuidInterface;
|
||||
|
||||
/**
|
||||
* StringCodec encodes and decodes RFC 4122 UUIDs
|
||||
*
|
||||
* @link http://tools.ietf.org/html/rfc4122
|
||||
*/
|
||||
class StringCodec implements CodecInterface
|
||||
{
|
||||
/**
|
||||
* @var UuidBuilderInterface
|
||||
*/
|
||||
private $builder;
|
||||
|
||||
/**
|
||||
* Constructs a StringCodec for use encoding and decoding UUIDs
|
||||
*
|
||||
* @param UuidBuilderInterface $builder The UUID builder to use when encoding UUIDs
|
||||
*/
|
||||
public function __construct(UuidBuilderInterface $builder)
|
||||
{
|
||||
$this->builder = $builder;
|
||||
}
|
||||
|
||||
/**
|
||||
* Encodes a UuidInterface as a string representation of a UUID
|
||||
*
|
||||
* @param UuidInterface $uuid
|
||||
* @return string Hexadecimal string representation of a UUID
|
||||
*/
|
||||
public function encode(UuidInterface $uuid)
|
||||
{
|
||||
$fields = array_values($uuid->getFieldsHex());
|
||||
|
||||
return vsprintf(
|
||||
'%08s-%04s-%04s-%02s%02s-%012s',
|
||||
$fields
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Encodes a UuidInterface as a binary representation of a UUID
|
||||
*
|
||||
* @param UuidInterface $uuid
|
||||
* @return string Binary string representation of a UUID
|
||||
*/
|
||||
public function encodeBinary(UuidInterface $uuid)
|
||||
{
|
||||
return hex2bin($uuid->getHex());
|
||||
}
|
||||
|
||||
/**
|
||||
* Decodes a string representation of a UUID into a UuidInterface object instance
|
||||
*
|
||||
* @param string $encodedUuid
|
||||
* @return UuidInterface
|
||||
* @throws InvalidUuidStringException
|
||||
*/
|
||||
public function decode($encodedUuid)
|
||||
{
|
||||
$components = $this->extractComponents($encodedUuid);
|
||||
$fields = $this->getFields($components);
|
||||
|
||||
return $this->builder->build($this, $fields);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decodes a binary representation of a UUID into a UuidInterface object instance
|
||||
*
|
||||
* @param string $bytes
|
||||
* @return UuidInterface
|
||||
* @throws InvalidArgumentException if string has not 16 characters
|
||||
*/
|
||||
public function decodeBytes($bytes)
|
||||
{
|
||||
if (strlen($bytes) !== 16) {
|
||||
throw new InvalidArgumentException('$bytes string should contain 16 characters.');
|
||||
}
|
||||
|
||||
$hexUuid = unpack('H*', $bytes);
|
||||
|
||||
return $this->decode($hexUuid[1]);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the UUID builder
|
||||
*
|
||||
* @return UuidBuilderInterface
|
||||
*/
|
||||
protected function getBuilder()
|
||||
{
|
||||
return $this->builder;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of UUID components (the UUID exploded on its dashes)
|
||||
*
|
||||
* @param string $encodedUuid
|
||||
* @return array
|
||||
* @throws InvalidUuidStringException
|
||||
*/
|
||||
protected function extractComponents($encodedUuid)
|
||||
{
|
||||
$nameParsed = str_replace([
|
||||
'urn:',
|
||||
'uuid:',
|
||||
'{',
|
||||
'}',
|
||||
'-'
|
||||
], '', $encodedUuid);
|
||||
|
||||
// We have stripped out the dashes and are breaking up the string using
|
||||
// substr(). In this way, we can accept a full hex value that doesn't
|
||||
// contain dashes.
|
||||
$components = [
|
||||
substr($nameParsed, 0, 8),
|
||||
substr($nameParsed, 8, 4),
|
||||
substr($nameParsed, 12, 4),
|
||||
substr($nameParsed, 16, 4),
|
||||
substr($nameParsed, 20)
|
||||
];
|
||||
|
||||
$nameParsed = implode('-', $components);
|
||||
|
||||
if (!Uuid::isValid($nameParsed)) {
|
||||
throw new InvalidUuidStringException('Invalid UUID string: ' . $encodedUuid);
|
||||
}
|
||||
|
||||
return $components;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the fields that make up this UUID
|
||||
*
|
||||
* @see \Ramsey\Uuid\UuidInterface::getFieldsHex()
|
||||
* @param array $components
|
||||
* @return array
|
||||
*/
|
||||
protected function getFields(array $components)
|
||||
{
|
||||
return [
|
||||
'time_low' => str_pad($components[0], 8, '0', STR_PAD_LEFT),
|
||||
'time_mid' => str_pad($components[1], 4, '0', STR_PAD_LEFT),
|
||||
'time_hi_and_version' => str_pad($components[2], 4, '0', STR_PAD_LEFT),
|
||||
'clock_seq_hi_and_reserved' => str_pad(substr($components[3], 0, 2), 2, '0', STR_PAD_LEFT),
|
||||
'clock_seq_low' => str_pad(substr($components[3], 2), 2, '0', STR_PAD_LEFT),
|
||||
'node' => str_pad($components[4], 12, '0', STR_PAD_LEFT)
|
||||
];
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user