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<?php /* * This file is part of the PHPASN1 library. * * Copyright © Friedrich Große <friedrich.grosse@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace FG\X509\SAN; use FG\ASN1\ASNObject; use FG\ASN1\Parsable; use FG\ASN1\Exception\ParserException; class IPAddress extends ASNObject implements Parsable { const IDENTIFIER = 0x87; // not sure yet why this is the identifier used in SAN extensions /** @var string */ private $value; public function __construct($ipAddressString) { $this->value = $ipAddressString; } public function getType() { return self::IDENTIFIER; } public function getContent() { return $this->value; } protected function calculateContentLength() { return 4; } protected function getEncodedValue() { $ipParts = explode('.', $this->value); $binary = chr($ipParts[0]); $binary .= chr($ipParts[1]); $binary .= chr($ipParts[2]); $binary .= chr($ipParts[3]); return $binary; } public static function fromBinary(&$binaryData, &$offsetIndex = 0) { self::parseIdentifier($binaryData[$offsetIndex], self::IDENTIFIER, $offsetIndex++); $contentLength = self::parseContentLength($binaryData, $offsetIndex); if ($contentLength != 4) { throw new ParserException("A FG\\X509\SAN\IPAddress should have a content length of 4. Extracted length was {$contentLength}", $offsetIndex); } $ipAddressString = ord($binaryData[$offsetIndex++]).'.'; $ipAddressString .= ord($binaryData[$offsetIndex++]).'.'; $ipAddressString .= ord($binaryData[$offsetIndex++]).'.'; $ipAddressString .= ord($binaryData[$offsetIndex++]); $parsedObject = new self($ipAddressString); $parsedObject->getObjectLength(); return $parsedObject; } }
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