74 lines
2.0 KiB
PHP
74 lines
2.0 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\X509\SAN;
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use FG\ASN1\ASNObject;
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use FG\ASN1\Parsable;
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use FG\ASN1\Exception\ParserException;
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class IPAddress extends ASNObject implements Parsable
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{
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const IDENTIFIER = 0x87; // not sure yet why this is the identifier used in SAN extensions
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/** @var string */
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private $value;
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public function __construct($ipAddressString)
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{
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$this->value = $ipAddressString;
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}
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public function getType()
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{
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return self::IDENTIFIER;
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}
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public function getContent()
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{
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return $this->value;
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}
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protected function calculateContentLength()
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{
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return 4;
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}
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protected function getEncodedValue()
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{
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$ipParts = explode('.', $this->value);
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$binary = chr($ipParts[0]);
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$binary .= chr($ipParts[1]);
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$binary .= chr($ipParts[2]);
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$binary .= chr($ipParts[3]);
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return $binary;
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}
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public static function fromBinary(&$binaryData, &$offsetIndex = 0)
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{
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self::parseIdentifier($binaryData[$offsetIndex], self::IDENTIFIER, $offsetIndex++);
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$contentLength = self::parseContentLength($binaryData, $offsetIndex);
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if ($contentLength != 4) {
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throw new ParserException("A FG\\X509\SAN\IPAddress should have a content length of 4. Extracted length was {$contentLength}", $offsetIndex);
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}
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$ipAddressString = ord($binaryData[$offsetIndex++]).'.';
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$ipAddressString .= ord($binaryData[$offsetIndex++]).'.';
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$ipAddressString .= ord($binaryData[$offsetIndex++]).'.';
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$ipAddressString .= ord($binaryData[$offsetIndex++]);
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$parsedObject = new self($ipAddressString);
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$parsedObject->getObjectLength();
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return $parsedObject;
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}
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}
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