| 1 |
<?php |
| 2 |
/* |
| 3 |
* This file is part of the PHPASN1 library. |
| 4 |
* |
| 5 |
* Copyright © Friedrich Große <[email protected]> |
| 6 |
* |
| 7 |
* For the full copyright and license information, please view the LICENSE |
| 8 |
* file that was distributed with this source code. |
| 9 |
*/ |
| 10 |
|
| 11 |
namespace WP_DEFENDER_VENDOR\FG\ASN1\Universal; |
| 12 |
|
| 13 |
use WP_DEFENDER_VENDOR\FG\ASN1\ASNObject; |
| 14 |
use WP_DEFENDER_VENDOR\FG\ASN1\Parsable; |
| 15 |
use WP_DEFENDER_VENDOR\FG\ASN1\Identifier; |
| 16 |
use WP_DEFENDER_VENDOR\FG\ASN1\Exception\ParserException; |
| 17 |
|
| 18 |
class NullObject extends ASNObject implements Parsable |
| 19 |
{ |
| 20 |
public function getType() |
| 21 |
{ |
| 22 |
return Identifier::NULL; |
| 23 |
} |
| 24 |
|
| 25 |
protected function calculateContentLength() |
| 26 |
{ |
| 27 |
return 0; |
| 28 |
} |
| 29 |
|
| 30 |
protected function getEncodedValue() |
| 31 |
{ |
| 32 |
return null; |
| 33 |
} |
| 34 |
|
| 35 |
public function getContent() |
| 36 |
{ |
| 37 |
return 'NULL'; |
| 38 |
} |
| 39 |
|
| 40 |
public static function fromBinary(&$binaryData, &$offsetIndex = 0) |
| 41 |
{ |
| 42 |
self::parseIdentifier($binaryData[$offsetIndex], Identifier::NULL, $offsetIndex++); |
| 43 |
$contentLength = self::parseContentLength($binaryData, $offsetIndex); |
| 44 |
|
| 45 |
if ($contentLength != 0) { |
| 46 |
throw new ParserException("An ASN.1 Null should not have a length other than zero. Extracted length was {$contentLength}", $offsetIndex); |
| 47 |
} |
| 48 |
|
| 49 |
$parsedObject = new self(); |
| 50 |
$parsedObject->setContentLength(0); |
| 51 |
|
| 52 |
return $parsedObject; |
| 53 |
} |
| 54 |
} |
| 55 |
|
