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<?php |
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declare(strict_types = 1); |
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namespace Sop\ASN1\Type; |
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use Sop\ASN1\Element; |
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/** |
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* Base class for all types representing a point in time. |
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*/ |
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abstract class BaseTime extends Element implements TimeType |
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{ |
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/** |
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* UTC timezone. |
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* |
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* @var string |
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*/ |
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const TZ_UTC = 'UTC'; |
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/** |
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* Date and time. |
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* |
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* @var \DateTimeImmutable |
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*/ |
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protected $_dateTime; |
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/** |
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* Constructor. |
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* |
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* @param \DateTimeImmutable $dt |
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*/ |
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public function __construct(\DateTimeImmutable $dt) |
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{ |
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$this->_dateTime = $dt; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __toString(): string |
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{ |
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return $this->string(); |
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} |
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/** |
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* Initialize from datetime string. |
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* |
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* @see http://php.net/manual/en/datetime.formats.php |
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* |
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* @param string $time Time string |
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* @param null|string $tz timezone, if null use default |
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* |
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* @throws \RuntimeException |
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* |
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* @return self |
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*/ |
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public static function fromString(string $time, ?string $tz = null): self |
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{ |
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try { |
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if (!isset($tz)) { |
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$tz = date_default_timezone_get(); |
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} |
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return new static( |
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new \DateTimeImmutable($time, self::_createTimeZone($tz))); |
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} catch (\Exception $e) { |
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throw new \RuntimeException( |
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'Failed to create DateTime: ' . |
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self::_getLastDateTimeImmutableErrorsStr(), 0, $e); |
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} |
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} |
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/** |
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* Get the date and time. |
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* |
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* @return \DateTimeImmutable |
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*/ |
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public function dateTime(): \DateTimeImmutable |
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{ |
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return $this->_dateTime; |
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} |
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/** |
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* Get the date and time as a type specific string. |
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* |
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* @return string |
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*/ |
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public function string(): string |
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{ |
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return $this->_encodedContentDER(); |
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} |
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/** |
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* Create `DateTimeZone` object from string. |
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* |
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* @param string $tz |
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* |
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* @throws \UnexpectedValueException If timezone is invalid |
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* |
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* @return \DateTimeZone |
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*/ |
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protected static function _createTimeZone(string $tz): \DateTimeZone |
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{ |
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try { |
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return new \DateTimeZone($tz); |
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} catch (\Exception $e) { |
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throw new \UnexpectedValueException('Invalid timezone.', 0, $e); |
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} |
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} |
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/** |
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* Get last error caused by `DateTimeImmutable`. |
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* |
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* @return string |
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*/ |
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protected static function _getLastDateTimeImmutableErrorsStr(): string |
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{ |
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$errors = \DateTimeImmutable::getLastErrors()['errors']; |
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return implode(', ', $errors); |
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} |
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} |
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sop /
asn1
