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<?php
declare(strict_types=1);
namespace SpomkyLabs\Pki\X509\Certificate;
use SpomkyLabs\Pki\ASN1\Type\Constructed\Sequence;
/**
* Implements *Validity* ASN.1 type.
*
* @see https://tools.ietf.org/html/rfc5280#section-4.1.2.5
*/
final class Validity
{
private function __construct(
private readonly Time $notBefore,
private readonly Time $notAfter
) {
}
public static function create(Time $notBefore, Time $notAfter): self
{
return new self($notBefore, $notAfter);
}
/**
* Initialize from ASN.1.
*/
public static function fromASN1(Sequence $seq): self
{
$nb = Time::fromASN1($seq->at(0)->asTime());
$na = Time::fromASN1($seq->at(1)->asTime());
return self::create($nb, $na);
}
/**
* Initialize from date strings.
*
* @param null|string $nb_date Not before date
* @param null|string $na_date Not after date
* @param null|string $tz Timezone string
*/
public static function fromStrings(?string $nb_date, ?string $na_date, ?string $tz = null): self
{
return self::create(Time::fromString($nb_date, $tz), Time::fromString($na_date, $tz));
}
/**
* Get not before time.
*/
public function notBefore(): Time
{
return $this->notBefore;
}
/**
* Get not after time.
*/
public function notAfter(): Time
{
return $this->notAfter;
}
/**
* Generate ASN.1 structure.
*/
public function toASN1(): Sequence
{
return Sequence::create($this->notBefore->toASN1(), $this->notAfter->toASN1());
}
}