Current File : /www/varak.net/nextcloud.varak.net/3rdparty/spomky-labs/pki-framework/src/X509/Certificate/Time.php
<?php
declare(strict_types=1);
namespace SpomkyLabs\Pki\X509\Certificate;
use DateTimeImmutable;
use SpomkyLabs\Pki\ASN1\Element;
use SpomkyLabs\Pki\ASN1\Type\Primitive\GeneralizedTime;
use SpomkyLabs\Pki\ASN1\Type\Primitive\UTCTime;
use SpomkyLabs\Pki\ASN1\Type\TimeType;
use SpomkyLabs\Pki\X509\Feature\DateTimeHelper;
use UnexpectedValueException;
/**
* Implements *Time* ASN.1 type.
*
* @see https://tools.ietf.org/html/rfc5280#section-4.1
*/
final class Time
{
use DateTimeHelper;
/**
* Time ASN.1 type tag.
*/
private readonly int $type;
private function __construct(
protected DateTimeImmutable $dt,
?int $type
) {
$this->type = $type ?? self::determineType($dt);
}
public static function create(DateTimeImmutable $dt): self
{
return new self($dt, null);
}
/**
* Initialize from ASN.1.
*/
public static function fromASN1(TimeType $el): self
{
return self::create($el->dateTime());
}
/**
* Initialize from date string.
*/
public static function fromString(?string $time, ?string $tz = null): self
{
return self::create(self::createDateTime($time, $tz));
}
public function dateTime(): DateTimeImmutable
{
return $this->dt;
}
/**
* Generate ASN.1.
*/
public function toASN1(): TimeType
{
$dt = $this->dt;
switch ($this->type) {
case Element::TYPE_UTC_TIME:
return UTCTime::create($dt);
case Element::TYPE_GENERALIZED_TIME:
// GeneralizedTime must not contain fractional seconds
// (rfc5280 4.1.2.5.2)
if ((int) $dt->format('u') !== 0) {
// remove fractional seconds (round down)
$dt = self::roundDownFractionalSeconds($dt);
}
return GeneralizedTime::create($dt);
}
throw new UnexpectedValueException('Time type ' . Element::tagToName($this->type) . ' not supported.');
}
/**
* Determine whether to use UTCTime or GeneralizedTime ASN.1 type.
*
* @return int Type tag
*/
protected static function determineType(DateTimeImmutable $dt): int
{
if ($dt->format('Y') >= 2050) {
return Element::TYPE_GENERALIZED_TIME;
}
return Element::TYPE_UTC_TIME;
}
}
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