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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of Badcow DNS Library. |
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* |
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* (c) Samuel Williams <[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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namespace Badcow\DNS\Rdata; |
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use Badcow\DNS\Parser\Tokens; |
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class DS implements RdataInterface |
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{ |
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use RdataTrait; |
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const TYPE = 'DS'; |
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const TYPE_CODE = 43; |
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const DIGEST_SHA1 = 1; |
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/** |
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* @var int |
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*/ |
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private $keyTag; |
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/** |
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* The Algorithm field lists the algorithm number of the DNSKEY RR |
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* referred to by the DS record. |
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* {@link https://tools.ietf.org/html/rfc4034#section-5.1.2}. |
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* |
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* @var int |
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*/ |
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private $algorithm; |
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/** |
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* @var int |
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*/ |
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private $digestType = self::DIGEST_SHA1; |
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/** |
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* @var string |
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*/ |
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private $digest; |
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/** |
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* @return int |
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*/ |
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1 |
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public function getKeyTag(): int |
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{ |
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return $this->keyTag; |
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} |
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/** |
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* @param int $keyTag |
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*/ |
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4 |
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public function setKeyTag(int $keyTag): void |
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{ |
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4 |
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$this->keyTag = $keyTag; |
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4 |
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} |
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/** |
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* @return int |
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*/ |
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public function getAlgorithm(): int |
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{ |
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1 |
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return $this->algorithm; |
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} |
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/** |
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* @param int $algorithm |
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*/ |
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4 |
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public function setAlgorithm(int $algorithm): void |
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{ |
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4 |
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$this->algorithm = $algorithm; |
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4 |
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} |
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/** |
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* @return int |
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*/ |
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public function getDigestType(): int |
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{ |
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return $this->digestType; |
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} |
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/** |
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* @param int $digestType |
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*/ |
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public function setDigestType(int $digestType): void |
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{ |
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$this->digestType = $digestType; |
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4 |
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} |
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/** |
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* @return string |
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*/ |
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1 |
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public function getDigest(): string |
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{ |
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1 |
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return $this->digest; |
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} |
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/** |
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* @param string $digest |
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*/ |
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public function setDigest(string $digest): void |
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{ |
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$this->digest = $digest; |
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4 |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toText(): string |
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{ |
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return sprintf( |
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'%s %s %s %s', |
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$this->keyTag, |
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$this->algorithm, |
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$this->digestType, |
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$this->digest |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toWire(): string |
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{ |
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return pack('nCC', $this->keyTag, $this->algorithm, $this->digestType).$this->digest; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function fromText(string $text): RdataInterface |
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{ |
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$rdata = explode(Tokens::SPACE, $text); |
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$ds = new static(); |
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$ds->setKeyTag((int) array_shift($rdata)); |
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$ds->setAlgorithm((int) array_shift($rdata)); |
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$ds->setDigestType((int) array_shift($rdata)); |
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$ds->setDigest((string) array_shift($rdata)); |
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return $ds; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function fromWire(string $rdata): RdataInterface |
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{ |
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$integers = unpack('ntag/Calgorithm/Cdtype', $rdata); |
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$ds = new static(); |
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$ds->setKeyTag($integers['tag']); |
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$ds->setAlgorithm($integers['algorithm']); |
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$ds->setDigestType($integers['dtype']); |
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$ds->setDigest(substr($rdata, 4)); |
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return $ds; |
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} |
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} |
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Badcow /
DNS
