/**
* Create a new RData object
*
* @param \LibDNS\Records\TypeDefinitions\TypeDefinition $typeDefinition
* @return \LibDNS\Records\RData
*/
public function build(TypeDefinition $typeDefinition)
{
$rData = $this->rDataFactory->create($typeDefinition);
foreach ($typeDefinition as $index => $type) {
$rData->setField($index, $this->typeBuilder->build($type->getType()));
}
return $rData;
}
/**
* Decode a resource record
*
* @param \LibDNS\Decoder\DecodingContext $decodingContext
* @return \LibDNS\Records\Resource
* @throws \UnexpectedValueException When the record is invalid
* @throws \InvalidArgumentException When a type subtype is unknown
*/
private function decodeResourceRecord(DecodingContext $decodingContext)
{
/** @var \LibDNS\Records\Types\DomainName $domainName */
$domainName = $this->typeBuilder->build(Types::DOMAIN_NAME);
$this->decodeDomainName($decodingContext, $domainName);
$meta = unpack('ntype/nclass/Nttl/nlength', $this->readDataFromPacket($decodingContext->getPacket(), 10));
$resource = $this->resourceBuilder->build($meta['type']);
$resource->setName($domainName);
$resource->setClass($meta['class']);
$resource->setTTL($meta['ttl']);
$data = $resource->getData();
$remainingLength = $meta['length'];
$fieldDef = $index = null;
foreach ($resource->getData()->getTypeDefinition() as $index => $fieldDef) {
$field = $this->typeBuilder->build($fieldDef->getType());
$remainingLength -= $this->decodeType($decodingContext, $field, $remainingLength);
$data->setField($index, $field);
}
if ($fieldDef->allowsMultiple()) {
while ($remainingLength) {
$field = $this->typeBuilder->build($fieldDef->getType());
$remainingLength -= $this->decodeType($decodingContext, $field, $remainingLength);
$data->setField(++$index, $field);
}
}
if ($remainingLength !== 0) {
throw new \UnexpectedValueException('Decode error: Invalid length for record data section');
}
return $resource;
}
