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File / Folder	Size	Action
.	-
Command	--	ren
Factory	--	ren
AbstractUid.php	4.825KB	edt ren
BinaryUtil.php	5.895KB	edt ren
CHANGELOG.md	0.938KB	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	6.859KB	edt ren
Uuid.php	5.686KB	edt ren
UuidV1.php	2.025KB	edt ren
UuidV3.php	0.578KB	edt ren
UuidV4.php	0.91KB	edt ren
UuidV5.php	0.578KB	edt ren
UuidV6.php	2.023KB	edt ren
UuidV7.php	5.003KB	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;

/**
 * A ULID is lexicographically sortable and contains a 48-bit timestamp and 80-bit of crypto-random entropy.
 *
 * @see https://github.com/ulid/spec
 *
 * @author Nicolas Grekas <p@tchwork.com>
 */
class Ulid extends AbstractUid implements TimeBasedUidInterface
{
    protected const NIL = '00000000000000000000000000';
    protected const MAX = '7ZZZZZZZZZZZZZZZZZZZZZZZZZ';

private static string $time = '';
    private static array $rand = [];

public function __construct(?string $ulid = null)
    {
        if (null === $ulid) {
            $this->uid = static::generate();
        } elseif (self::NIL === $ulid) {
            $this->uid = $ulid;
        } elseif (self::MAX === strtr($ulid, 'z', 'Z')) {
            $this->uid = $ulid;
        } else {
            if (!self::isValid($ulid)) {
                throw new \InvalidArgumentException(sprintf('Invalid ULID: "%s".', $ulid));
            }

$this->uid = strtoupper($ulid);
        }
    }

public static function isValid(string $ulid): bool
    {
        if (26 !== \strlen($ulid)) {
            return false;
        }

if (26 !== strspn($ulid, '0123456789ABCDEFGHJKMNPQRSTVWXYZabcdefghjkmnpqrstvwxyz')) {
            return false;
        }

return $ulid[0] <= '7';
    }

public static function fromString(string $ulid): static
    {
        if (36 === \strlen($ulid) && preg_match('{^[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}$}Di', $ulid)) {
            $ulid = uuid_parse($ulid);
        } elseif (22 === \strlen($ulid) && 22 === strspn($ulid, BinaryUtil::BASE58[''])) {
            $ulid = str_pad(BinaryUtil::fromBase($ulid, BinaryUtil::BASE58), 16, "\0", \STR_PAD_LEFT);
        }

if (16 !== \strlen($ulid)) {
            return match (strtr($ulid, 'z', 'Z')) {
                self::NIL => new NilUlid(),
                self::MAX => new MaxUlid(),
                default => new static($ulid),
            };
        }

$ulid = bin2hex($ulid);
        $ulid = sprintf('%02s%04s%04s%04s%04s%04s%04s',
            base_convert(substr($ulid, 0, 2), 16, 32),
            base_convert(substr($ulid, 2, 5), 16, 32),
            base_convert(substr($ulid, 7, 5), 16, 32),
            base_convert(substr($ulid, 12, 5), 16, 32),
            base_convert(substr($ulid, 17, 5), 16, 32),
            base_convert(substr($ulid, 22, 5), 16, 32),
            base_convert(substr($ulid, 27, 5), 16, 32)
        );

if (self::NIL === $ulid) {
            return new NilUlid();
        }

if (self::MAX === $ulid = strtr($ulid, 'abcdefghijklmnopqrstuv', 'ABCDEFGHJKMNPQRSTVWXYZ')) {
            return new MaxUlid();
        }

$u = new static(self::NIL);
        $u->uid = $ulid;

return $u;
    }

public function toBinary(): string
    {
        $ulid = strtr($this->uid, 'ABCDEFGHJKMNPQRSTVWXYZ', 'abcdefghijklmnopqrstuv');

$ulid = sprintf('%02s%05s%05s%05s%05s%05s%05s',
            base_convert(substr($ulid, 0, 2), 32, 16),
            base_convert(substr($ulid, 2, 4), 32, 16),
            base_convert(substr($ulid, 6, 4), 32, 16),
            base_convert(substr($ulid, 10, 4), 32, 16),
            base_convert(substr($ulid, 14, 4), 32, 16),
            base_convert(substr($ulid, 18, 4), 32, 16),
            base_convert(substr($ulid, 22, 4), 32, 16)
        );

return hex2bin($ulid);
    }

/**
     * Returns the identifier as a base32 case insensitive string.
     *
     * @see https://tools.ietf.org/html/rfc4648#section-6
     *
     * @example 09EJ0S614A9FXVG9C5537Q9ZE1 (len=26)
     */
    public function toBase32(): string
    {
        return $this->uid;
    }

public function getDateTime(): \DateTimeImmutable
    {
        $time = strtr(substr($this->uid, 0, 10), 'ABCDEFGHJKMNPQRSTVWXYZ', 'abcdefghijklmnopqrstuv');

if (\PHP_INT_SIZE >= 8) {
            $time = (string) hexdec(base_convert($time, 32, 16));
        } else {
            $time = sprintf('%02s%05s%05s',
                base_convert(substr($time, 0, 2), 32, 16),
                base_convert(substr($time, 2, 4), 32, 16),
                base_convert(substr($time, 6, 4), 32, 16)
            );
            $time = BinaryUtil::toBase(hex2bin($time), BinaryUtil::BASE10);
        }

if (4 > \strlen($time)) {
            $time = '000'.$time;
        }

return \DateTimeImmutable::createFromFormat('U.u', substr_replace($time, '.', -3, 0));
    }

public static function generate(?\DateTimeInterface $time = null): string
    {
        if (null === $mtime = $time) {
            $time = microtime(false);
            $time = substr($time, 11).substr($time, 2, 3);
        } elseif (0 > $time = $time->format('Uv')) {
            throw new \InvalidArgumentException('The timestamp must be positive.');
        }

if ($time > self::$time || (null !== $mtime && $time !== self::$time)) {
            randomize:
            $r = unpack('n*', random_bytes(10));
            $r[1] |= ($r[5] <<= 4) & 0xF0000;
            $r[2] |= ($r[5] <<= 4) & 0xF0000;
            $r[3] |= ($r[5] <<= 4) & 0xF0000;
            $r[4] |= ($r[5] <<= 4) & 0xF0000;
            unset($r[5]);
            self::$rand = $r;
            self::$time = $time;
        } elseif ([1 => 0xFFFFF, 0xFFFFF, 0xFFFFF, 0xFFFFF] === self::$rand) {
            if (\PHP_INT_SIZE >= 8 || 10 > \strlen($time = self::$time)) {
                $time = (string) (1 + $time);
            } elseif ('999999999' === $mtime = substr($time, -9)) {
                $time = (1 + substr($time, 0, -9)).'000000000';
            } else {
                $time = substr_replace($time, str_pad(++$mtime, 9, '0', \STR_PAD_LEFT), -9);
            }

goto randomize;
        } else {
            for ($i = 4; $i > 0 && 0xFFFFF === self::$rand[$i]; --$i) {
                self::$rand[$i] = 0;
            }

++self::$rand[$i];
            $time = self::$time;
        }

if (\PHP_INT_SIZE >= 8) {
            $time = base_convert($time, 10, 32);
        } else {
            $time = str_pad(bin2hex(BinaryUtil::fromBase($time, BinaryUtil::BASE10)), 12, '0', \STR_PAD_LEFT);
            $time = sprintf('%s%04s%04s',
                base_convert(substr($time, 0, 2), 16, 32),
                base_convert(substr($time, 2, 5), 16, 32),
                base_convert(substr($time, 7, 5), 16, 32)
            );
        }

return strtr(sprintf('%010s%04s%04s%04s%04s',
            $time,
            base_convert(self::$rand[1], 10, 32),
            base_convert(self::$rand[2], 10, 32),
            base_convert(self::$rand[3], 10, 32),
            base_convert(self::$rand[4], 10, 32)
        ), 'abcdefghijklmnopqrstuv', 'ABCDEFGHJKMNPQRSTVWXYZ');
    }
}