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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; |
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use Badcow\DNS\Rdata\DecodeException; |
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use Badcow\DNS\Rdata\Types; |
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use Badcow\DNS\Rdata\UnsupportedTypeException; |
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use InvalidArgumentException; |
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use UnexpectedValueException; |
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class Question |
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{ |
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/** |
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* @var string |
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*/ |
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private $name; |
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/** |
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* @var int |
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*/ |
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private $typeCode; |
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/** |
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* @var int |
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*/ |
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private $classId; |
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3 |
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public function getName(): string |
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{ |
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return $this->name; |
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} |
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/** |
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* @param string $name |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function setName($name): void |
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{ |
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if (!Validator::fullyQualifiedDomainName($name)) { |
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throw new InvalidArgumentException(sprintf('"%s" is not a fully qualified domain name.', $name)); |
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} |
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$this->name = $name; |
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} |
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public function getTypeCode(): int |
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{ |
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return $this->typeCode; |
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} |
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/** |
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* @throws UnsupportedTypeException |
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1 |
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*/ |
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public function getType(): string |
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1 |
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{ |
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return Types::getName($this->typeCode); |
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} |
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/** |
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* @throws \DomainException |
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*/ |
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public function setTypeCode(int $typeCode): void |
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{ |
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if (!Validator::isUnsignedInteger($typeCode, 16)) { |
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throw new \DomainException(sprintf('TypeCode must be an unsigned 16-bit integer. "%d" given.', $typeCode)); |
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} |
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$this->typeCode = $typeCode; |
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} |
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/** |
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* @throws UnsupportedTypeException |
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*/ |
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public function setType(string $type): void |
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{ |
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$this->setTypeCode(Types::getTypeCode($type)); |
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} |
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2 |
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public function getClassId(): int |
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{ |
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return $this->classId; |
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} |
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1 |
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public function getClass(): string |
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1 |
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{ |
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return Classes::getClassName($this->classId); |
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} |
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/** |
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* @throws \InvalidArgumentException |
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*/ |
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public function setClassId(int $classId): void |
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{ |
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if (!Validator::isUnsignedInteger($classId, 16)) { |
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throw new InvalidArgumentException(sprintf('Invalid class: "%s".', $classId)); |
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} |
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$this->classId = $classId; |
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} |
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2 |
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public function setClass(string $class): void |
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{ |
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$this->setClassId(Classes::getClassId($class)); |
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} |
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public function toWire(): string |
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{ |
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return Message::encodeName($this->name).pack('nn', $this->typeCode, $this->classId); |
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} |
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/** |
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* @throws UnexpectedValueException |
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* @throws UnsupportedTypeException |
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*/ |
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public static function fromWire(string $encoded, int &$offset = 0): Question |
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{ |
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$question = new self(); |
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$question->setName(Message::decodeName($encoded, $offset)); |
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View Code Duplication |
if (false === $integers = unpack('ntype/nclass', $encoded, $offset)) { |
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throw new \UnexpectedValueException(sprintf('Malformed DNS query encountered. "%s"', DecodeException::binaryToHex($encoded))); |
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} |
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$question->setTypeCode($integers['type']); |
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$question->setClassId($integers['class']); |
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$offset += 4; |
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return $question; |
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} |
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} |
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Badcow /
DNS
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.