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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\CSR;
use FG\ASN1\ASNObject;
use FG\X509\CertificateExtensions;
use FG\ASN1\OID;
use FG\ASN1\Parsable;
use FG\ASN1\Construct;
use FG\ASN1\Identifier;
use FG\ASN1\Universal\Set;
use FG\ASN1\Universal\Sequence;
use FG\ASN1\Universal\ObjectIdentifier;
class Attributes extends Construct implements Parsable
{
public function getType()
{
return 0xA0;
}
public function addAttribute($objectIdentifier, Set $attribute)
{
if (is_string($objectIdentifier)) {
$objectIdentifier = new ObjectIdentifier($objectIdentifier);
}
$attributeSequence = new Sequence($objectIdentifier, $attribute);
$attributeSequence->getNumberOfLengthOctets(); // length and number of length octets is calculated
$this->addChild($attributeSequence);
}
public static function fromBinary(&$binaryData, &$offsetIndex = 0)
{
self::parseIdentifier($binaryData[$offsetIndex], 0xA0, $offsetIndex++);
$contentLength = self::parseContentLength($binaryData, $offsetIndex);
$octetsToRead = $contentLength;
$parsedObject = new self();
while ($octetsToRead > 0) {
$initialOffset = $offsetIndex; // used to calculate how much bits have been read
self::parseIdentifier($binaryData[$offsetIndex], Identifier::SEQUENCE, $offsetIndex++);
self::parseContentLength($binaryData, $offsetIndex);
$objectIdentifier = ObjectIdentifier::fromBinary($binaryData, $offsetIndex);
$oidString = $objectIdentifier->getContent();
if ($oidString == OID::PKCS9_EXTENSION_REQUEST) {
$attribute = CertificateExtensions::fromBinary($binaryData, $offsetIndex);
} else {
$attribute = ASNObject::fromBinary($binaryData, $offsetIndex);
}
$parsedObject->addAttribute($objectIdentifier, $attribute);
$octetsToRead -= ($offsetIndex - $initialOffset);
}
$parsedObject->setContentLength($contentLength);
return $parsedObject;
}
}
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