home/alospiesjs/www/apis/youtube/vendor/ramsey/uuid/src/Guid/Fields.php000060400000011646151161663250022277 0ustar00 * @license http://opensource.org/licenses/MIT MIT */ declare(strict_types=1); namespace Ramsey\Uuid\Guid; use Ramsey\Uuid\Exception\InvalidArgumentException; use Ramsey\Uuid\Fields\SerializableFieldsTrait; use Ramsey\Uuid\Rfc4122\FieldsInterface; use Ramsey\Uuid\Rfc4122\NilTrait; use Ramsey\Uuid\Rfc4122\VariantTrait; use Ramsey\Uuid\Rfc4122\VersionTrait; use Ramsey\Uuid\Type\Hexadecimal; use Ramsey\Uuid\Uuid; use function bin2hex; use function dechex; use function hexdec; use function pack; use function sprintf; use function str_pad; use function strlen; use function substr; use function unpack; use const STR_PAD_LEFT; /** * GUIDs are comprised of a set of named fields, according to RFC 4122 * * @see Guid * * @psalm-immutable */ final class Fields implements FieldsInterface { use NilTrait; use SerializableFieldsTrait; use VariantTrait; use VersionTrait; /** * @var string */ private $bytes; /** * @param string $bytes A 16-byte binary string representation of a UUID * * @throws InvalidArgumentException if the byte string is not exactly 16 bytes * @throws InvalidArgumentException if the byte string does not represent a GUID * @throws InvalidArgumentException if the byte string does not contain a valid version */ public function __construct(string $bytes) { if (strlen($bytes) !== 16) { throw new InvalidArgumentException( 'The byte string must be 16 bytes long; ' . 'received ' . strlen($bytes) . ' bytes' ); } $this->bytes = $bytes; if (!$this->isCorrectVariant()) { throw new InvalidArgumentException( 'The byte string received does not conform to the RFC ' . '4122 or Microsoft Corporation variants' ); } if (!$this->isCorrectVersion()) { throw new InvalidArgumentException( 'The byte string received does not contain a valid version' ); } } public function getBytes(): string { return $this->bytes; } public function getTimeLow(): Hexadecimal { // Swap the bytes from little endian to network byte order. /** @var array $hex */ $hex = unpack( 'H*', pack( 'v*', hexdec(bin2hex(substr($this->bytes, 2, 2))), hexdec(bin2hex(substr($this->bytes, 0, 2))) ) ); return new Hexadecimal((string) ($hex[1] ?? '')); } public function getTimeMid(): Hexadecimal { // Swap the bytes from little endian to network byte order. /** @var array $hex */ $hex = unpack( 'H*', pack( 'v', hexdec(bin2hex(substr($this->bytes, 4, 2))) ) ); return new Hexadecimal((string) ($hex[1] ?? '')); } public function getTimeHiAndVersion(): Hexadecimal { // Swap the bytes from little endian to network byte order. /** @var array $hex */ $hex = unpack( 'H*', pack( 'v', hexdec(bin2hex(substr($this->bytes, 6, 2))) ) ); return new Hexadecimal((string) ($hex[1] ?? '')); } public function getTimestamp(): Hexadecimal { return new Hexadecimal(sprintf( '%03x%04s%08s', hexdec($this->getTimeHiAndVersion()->toString()) & 0x0fff, $this->getTimeMid()->toString(), $this->getTimeLow()->toString() )); } public function getClockSeq(): Hexadecimal { $clockSeq = hexdec(bin2hex(substr($this->bytes, 8, 2))) & 0x3fff; return new Hexadecimal(str_pad(dechex($clockSeq), 4, '0', STR_PAD_LEFT)); } public function getClockSeqHiAndReserved(): Hexadecimal { return new Hexadecimal(bin2hex(substr($this->bytes, 8, 1))); } public function getClockSeqLow(): Hexadecimal { return new Hexadecimal(bin2hex(substr($this->bytes, 9, 1))); } public function getNode(): Hexadecimal { return new Hexadecimal(bin2hex(substr($this->bytes, 10))); } public function getVersion(): ?int { if ($this->isNil()) { return null; } /** @var array $parts */ $parts = unpack('n*', $this->bytes); return ((int) $parts[4] >> 4) & 0x00f; } private function isCorrectVariant(): bool { if ($this->isNil()) { return true; } $variant = $this->getVariant(); return $variant === Uuid::RFC_4122 || $variant === Uuid::RESERVED_MICROSOFT; } }