79 lines
2.3 KiB
PHP
79 lines
2.3 KiB
PHP
<?php
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/*
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* This file is part of the PHPASN1 library.
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*
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* Copyright © Friedrich Große <friedrich.grosse@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace FG\ASN1;
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use DateInterval;
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use DateTime;
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use DateTimeZone;
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use Exception;
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abstract class AbstractTime extends ASNObject
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{
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/** @var DateTime */
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protected $value;
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public function __construct($dateTime = null, $dateTimeZone = 'UTC')
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{
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if ($dateTime == null || is_string($dateTime)) {
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$timeZone = new DateTimeZone($dateTimeZone);
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$dateTimeObject = new DateTime($dateTime, $timeZone);
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if ($dateTimeObject == false) {
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$errorMessage = $this->getLastDateTimeErrors();
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$className = Identifier::getName($this->getType());
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throw new Exception(sprintf("Could not create %s from date time string '%s': %s", $className, $dateTime, $errorMessage));
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}
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$dateTime = $dateTimeObject;
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} elseif (!$dateTime instanceof DateTime) {
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throw new Exception('Invalid first argument for some instance of AbstractTime constructor');
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}
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$this->value = $dateTime;
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}
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public function getContent()
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{
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return $this->value;
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}
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protected function getLastDateTimeErrors()
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{
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$messages = '';
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$lastErrors = DateTime::getLastErrors();
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foreach ($lastErrors['errors'] as $errorMessage) {
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$messages .= "{$errorMessage}, ";
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}
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return substr($messages, 0, -2);
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}
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public function __toString()
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{
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return $this->value->format("Y-m-d\tH:i:s");
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}
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protected static function extractTimeZoneData(&$binaryData, &$offsetIndex, DateTime $dateTime)
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{
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$sign = $binaryData[$offsetIndex++];
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$timeOffsetHours = intval(substr($binaryData, $offsetIndex, 2));
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$timeOffsetMinutes = intval(substr($binaryData, $offsetIndex + 2, 2));
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$offsetIndex += 4;
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$interval = new DateInterval("PT{$timeOffsetHours}H{$timeOffsetMinutes}M");
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if ($sign == '+') {
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$dateTime->sub($interval);
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} else {
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$dateTime->add($interval);
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}
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return $dateTime;
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}
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}
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