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<?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 <[email protected]> |
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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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|
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namespace WP_DEFENDER_VENDOR\FG\ASN1\Universal; |
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|
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use WP_DEFENDER_VENDOR\FG\ASN1\AbstractTime; |
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use WP_DEFENDER_VENDOR\FG\ASN1\Parsable; |
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use WP_DEFENDER_VENDOR\FG\ASN1\Identifier; |
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use WP_DEFENDER_VENDOR\FG\ASN1\Exception\ParserException; |
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|
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/** |
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* This ASN.1 universal type contains date and time information according to ISO 8601. |
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* |
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* The type consists of values representing: |
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* a) a calendar date, as defined in ISO 8601; and |
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* b) a time of day, to any of the precisions defined in ISO 8601, except for the hours value 24 which shall not be used; and |
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* c) the local time differential factor as defined in ISO 8601. |
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* |
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* Decoding of this type will accept the Basic Encoding Rules (BER) |
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* The encoding will comply with the Distinguished Encoding Rules (DER). |
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*/ |
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class GeneralizedTime extends AbstractTime implements Parsable |
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{ |
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private $microseconds; |
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|
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public function __construct($dateTime = null, $dateTimeZone = 'UTC') |
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{ |
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parent::__construct($dateTime, $dateTimeZone); |
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$this->microseconds = $this->value->format('u'); |
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if ($this->containsFractionalSecondsElement()) { |
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// DER requires us to remove trailing zeros |
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$this->microseconds = preg_replace('/([1-9]+)0+$/', '$1', $this->microseconds); |
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} |
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} |
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|
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public function getType() |
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{ |
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return Identifier::GENERALIZED_TIME; |
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} |
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|
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protected function calculateContentLength() |
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{ |
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$contentSize = 15; // YYYYMMDDHHmmSSZ |
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|
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if ($this->containsFractionalSecondsElement()) { |
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$contentSize += 1 + strlen($this->microseconds); |
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} |
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|
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return $contentSize; |
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} |
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|
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public function containsFractionalSecondsElement() |
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{ |
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return intval($this->microseconds) > 0; |
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} |
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|
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protected function getEncodedValue() |
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{ |
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$encodedContent = $this->value->format('YmdHis'); |
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if ($this->containsFractionalSecondsElement()) { |
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$encodedContent .= ".{$this->microseconds}"; |
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} |
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|
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return $encodedContent.'Z'; |
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} |
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|
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public function __toString() |
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{ |
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if ($this->containsFractionalSecondsElement()) { |
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return $this->value->format("Y-m-d\tH:i:s.uP"); |
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} else { |
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return $this->value->format("Y-m-d\tH:i:sP"); |
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} |
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} |
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|
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public static function fromBinary(&$binaryData, &$offsetIndex = 0) |
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{ |
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self::parseIdentifier($binaryData[$offsetIndex], Identifier::GENERALIZED_TIME, $offsetIndex++); |
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$lengthOfMinimumTimeString = 14; // YYYYMMDDHHmmSS |
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$contentLength = self::parseContentLength($binaryData, $offsetIndex, $lengthOfMinimumTimeString); |
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$maximumBytesToRead = $contentLength; |
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|
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$format = 'YmdGis'; |
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$content = substr($binaryData, $offsetIndex, $contentLength); |
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$dateTimeString = substr($content, 0, $lengthOfMinimumTimeString); |
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$offsetIndex += $lengthOfMinimumTimeString; |
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$maximumBytesToRead -= $lengthOfMinimumTimeString; |
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|
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if ($contentLength == $lengthOfMinimumTimeString) { |
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$localTimeZone = new \DateTimeZone(date_default_timezone_get()); |
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$dateTime = \DateTime::createFromFormat($format, $dateTimeString, $localTimeZone); |
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} else { |
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if ($binaryData[$offsetIndex] == '.') { |
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$maximumBytesToRead--; // account for the '.' |
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$nrOfFractionalSecondElements = 1; // account for the '.' |
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|
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while ($maximumBytesToRead > 0 |
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&& $binaryData[$offsetIndex + $nrOfFractionalSecondElements] != '+' |
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&& $binaryData[$offsetIndex + $nrOfFractionalSecondElements] != '-' |
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&& $binaryData[$offsetIndex + $nrOfFractionalSecondElements] != 'Z') { |
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$nrOfFractionalSecondElements++; |
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$maximumBytesToRead--; |
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} |
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|
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$dateTimeString .= substr($binaryData, $offsetIndex, $nrOfFractionalSecondElements); |
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$offsetIndex += $nrOfFractionalSecondElements; |
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$format .= '.u'; |
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} |
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|
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$dateTime = \DateTime::createFromFormat($format, $dateTimeString, new \DateTimeZone('UTC')); |
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|
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if ($maximumBytesToRead > 0) { |
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if ($binaryData[$offsetIndex] == '+' |
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|| $binaryData[$offsetIndex] == '-') { |
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$dateTime = static::extractTimeZoneData($binaryData, $offsetIndex, $dateTime); |
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} elseif ($binaryData[$offsetIndex++] != 'Z') { |
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throw new ParserException('Invalid ISO 8601 Time String', $offsetIndex); |
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} |
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} |
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} |
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|
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$parsedObject = new self($dateTime); |
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$parsedObject->setContentLength($contentLength); |
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|
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return $parsedObject; |
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} |
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} |
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|
