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Directory >> /var/www/html/back/vendor/symfony/uid/

File / Folder	Size	Action
.	-
Command	--	ren
Exception	--	ren
Factory	--	ren
AbstractUid.php	5.522KB	edt ren
BinaryUtil.php	6.427KB	edt ren
CHANGELOG.md	1.519KB	edt ren
HashableInterface.php	0.621KB	edt ren
LICENSE	1.043KB	edt ren
MaxUlid.php	0.374KB	edt ren
MaxUuid.php	0.405KB	edt ren
NilUlid.php	0.374KB	edt ren
NilUuid.php	0.461KB	edt ren
README.md	0.59KB	edt ren
TimeBasedUidInterface.php	0.507KB	edt ren
Ulid.php	6.925KB	edt ren
Uuid.php	7.391KB	edt ren
UuidV1.php	2.362KB	edt ren
UuidV3.php	0.578KB	edt ren
UuidV4.php	1.325KB	edt ren
UuidV5.php	0.578KB	edt ren
UuidV6.php	3.068KB	edt ren
UuidV7.php	6.188KB	edt ren
UuidV8.php	0.56KB	edt ren
composer.json	0.9KB	edt ren

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Uid;

use Symfony\Component\Uid\Exception\InvalidArgumentException;

/**
 * @internal
 *
 * @author Nicolas Grekas <p@tchwork.com>
 */
class BinaryUtil
{
    public const BASE10 = [
        '' => '0123456789',
        0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
    ];

public const BASE58 = [
        '' => '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz',
        1 => 0, 1, 2, 3, 4, 5, 6, 7, 8, 'A' => 9,
        'B' => 10, 'C' => 11, 'D' => 12, 'E' => 13, 'F' => 14, 'G' => 15,
        'H' => 16, 'J' => 17, 'K' => 18, 'L' => 19, 'M' => 20, 'N' => 21,
        'P' => 22, 'Q' => 23, 'R' => 24, 'S' => 25, 'T' => 26, 'U' => 27,
        'V' => 28, 'W' => 29, 'X' => 30, 'Y' => 31, 'Z' => 32, 'a' => 33,
        'b' => 34, 'c' => 35, 'd' => 36, 'e' => 37, 'f' => 38, 'g' => 39,
        'h' => 40, 'i' => 41, 'j' => 42, 'k' => 43, 'm' => 44, 'n' => 45,
        'o' => 46, 'p' => 47, 'q' => 48, 'r' => 49, 's' => 50, 't' => 51,
        'u' => 52, 'v' => 53, 'w' => 54, 'x' => 55, 'y' => 56, 'z' => 57,
    ];

// https://datatracker.ietf.org/doc/html/rfc9562#section-5.1
    // 0x01b21dd213814000 is the number of 100-ns intervals between the
    // UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00.
    private const TIME_OFFSET_INT = 0x01B21DD213814000;
    private const TIME_OFFSET_BIN = "\x01\xb2\x1d\xd2\x13\x81\x40\x00";
    private const TIME_OFFSET_COM1 = "\xfe\x4d\xe2\x2d\xec\x7e\xbf\xff";
    private const TIME_OFFSET_COM2 = "\xfe\x4d\xe2\x2d\xec\x7e\xc0\x00";

public static function toBase(string $bytes, array $map): string
    {
        $base = \strlen($alphabet = $map['']);
        $bytes = array_values(unpack(\PHP_INT_SIZE >= 8 ? 'n*' : 'C*', $bytes));
        $digits = '';

while ($count = \count($bytes)) {
            $quotient = [];
            $remainder = 0;

for ($i = 0; $i !== $count; ++$i) {
                $carry = $bytes[$i] + ($remainder << (\PHP_INT_SIZE >= 8 ? 16 : 8));
                $digit = intdiv($carry, $base);
                $remainder = $carry % $base;

if ($digit || $quotient) {
                    $quotient[] = $digit;
                }
            }

$digits = $alphabet[$remainder].$digits;
            $bytes = $quotient;
        }

return $digits;
    }

public static function fromBase(string $digits, array $map): string
    {
        $base = \strlen($map['']);
        $count = \strlen($digits);
        $bytes = [];

while ($count) {
            $quotient = [];
            $remainder = 0;

for ($i = 0; $i !== $count; ++$i) {
                $carry = ($bytes ? $digits[$i] : $map[$digits[$i]]) + $remainder * $base;

if (\PHP_INT_SIZE >= 8) {
                    $digit = $carry >> 16;
                    $remainder = $carry & 0xFFFF;
                } else {
                    $digit = $carry >> 8;
                    $remainder = $carry & 0xFF;
                }

if ($digit || $quotient) {
                    $quotient[] = $digit;
                }
            }

$bytes[] = $remainder;
            $count = \count($digits = $quotient);
        }

return pack(\PHP_INT_SIZE >= 8 ? 'n*' : 'C*', ...array_reverse($bytes));
    }

public static function add(string $a, string $b): string
    {
        $carry = 0;
        for ($i = 7; 0 <= $i; --$i) {
            $carry += \ord($a[$i]) + \ord($b[$i]);
            $a[$i] = \chr($carry & 0xFF);
            $carry >>= 8;
        }

return $a;
    }

/**
     * @param string $time Count of 100-nanosecond intervals since the UUID epoch 1582-10-15 00:00:00 in hexadecimal
     *
     * @return string Count of 100-nanosecond intervals since the UUID epoch 1582-10-15 00:00:00 as a numeric string
     */
    public static function hexToNumericString(string $time): string
    {
        if (\PHP_INT_SIZE >= 8) {
            $time = (string) (hexdec($time) - self::TIME_OFFSET_INT);
        } else {
            $time = str_pad(hex2bin($time), 8, "\0", \STR_PAD_LEFT);

if (self::TIME_OFFSET_BIN <= $time) {
                $time = self::add($time, self::TIME_OFFSET_COM2);
                $time[0] = $time[0] & "\x7F";
                $time = self::toBase($time, self::BASE10);
            } else {
                $time = self::add($time, self::TIME_OFFSET_COM1);
                $time = '-'.self::toBase($time ^ "\xff\xff\xff\xff\xff\xff\xff\xff", self::BASE10);
            }
        }

if (9 > \strlen($time)) {
            $time = '-' === $time[0] ? '-'.str_pad(substr($time, 1), 8, '0', \STR_PAD_LEFT) : str_pad($time, 8, '0', \STR_PAD_LEFT);
        }

return $time;
    }

/**
     * Sub-microseconds are lost since they are not handled by \DateTimeImmutable.
     *
     * @param string $time Count of 100-nanosecond intervals since the UUID epoch 1582-10-15 00:00:00 in hexadecimal
     */
    public static function hexToDateTime(string $time): \DateTimeImmutable
    {
        return \DateTimeImmutable::createFromFormat('U.u?', substr_replace(self::hexToNumericString($time), '.', -7, 0));
    }

/**
     * @return string Count of 100-nanosecond intervals since the UUID epoch 1582-10-15 00:00:00 in hexadecimal
     */
    public static function dateTimeToHex(\DateTimeInterface $time): string
    {
        if (\PHP_INT_SIZE >= 8) {
            if (-self::TIME_OFFSET_INT > $time = (int) $time->format('Uu0')) {
                throw new InvalidArgumentException('The given UUID date cannot be earlier than 1582-10-15.');
            }

return str_pad(dechex(self::TIME_OFFSET_INT + $time), 16, '0', \STR_PAD_LEFT);
        }

$time = $time->format('Uu0');
        $negative = '-' === $time[0];
        if ($negative && self::TIME_OFFSET_INT < $time = substr($time, 1)) {
            throw new InvalidArgumentException('The given UUID date cannot be earlier than 1582-10-15.');
        }
        $time = self::fromBase($time, self::BASE10);
        $time = str_pad($time, 8, "\0", \STR_PAD_LEFT);

if ($negative) {
            $time = self::add($time, self::TIME_OFFSET_COM1) ^ "\xff\xff\xff\xff\xff\xff\xff\xff";
        } else {
            $time = self::add($time, self::TIME_OFFSET_BIN);
        }

return bin2hex($time);
    }
}

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