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Direktori : /home2/selectio/public_html/limpiar.in.net/updates/vendor/symfony/uid/ |
Current File : /home2/selectio/public_html/limpiar.in.net/updates/vendor/symfony/uid/Ulid.php |
<?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 { protected const NIL = '00000000000000000000000000'; private static string $time = ''; private static array $rand = []; public function __construct(string $ulid = null) { if (null === $ulid) { $this->uid = static::generate(); return; } if (self::NIL === $ulid) { $this->uid = $ulid; return; } if (!self::isValid($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'; } /** * {@inheritdoc} */ 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)) { if (self::NIL === $ulid) { return new NilUlid(); } return new static($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(); } $u = new static(self::NIL); $u->uid = strtr($ulid, 'abcdefghijklmnopqrstuv', 'ABCDEFGHJKMNPQRSTVWXYZ'); 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); } 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('nr1/nr2/nr3/nr4/nr', random_bytes(10)); $r['r1'] |= ($r['r'] <<= 4) & 0xF0000; $r['r2'] |= ($r['r'] <<= 4) & 0xF0000; $r['r3'] |= ($r['r'] <<= 4) & 0xF0000; $r['r4'] |= ($r['r'] <<= 4) & 0xF0000; unset($r['r']); self::$rand = array_values($r); self::$time = $time; } elseif ([0xFFFFF, 0xFFFFF, 0xFFFFF, 0xFFFFF] === self::$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 = 3; $i >= 0 && 0xFFFFF === self::$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[0], 10, 32), base_convert(self::$rand[1], 10, 32), base_convert(self::$rand[2], 10, 32), base_convert(self::$rand[3], 10, 32) ), 'abcdefghijklmnopqrstuv', 'ABCDEFGHJKMNPQRSTVWXYZ'); } }