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<?php |
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namespace RemotelyLiving\PHPDNS\Resolvers; |
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use RemotelyLiving\PHPDNS\Entities\DNSRecordCollection; |
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use RemotelyLiving\PHPDNS\Entities\DNSRecordType; |
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use RemotelyLiving\PHPDNS\Entities\Hostname; |
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use RemotelyLiving\PHPDNS\Factories\SpatieDNS; |
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use RemotelyLiving\PHPDNS\Mappers\Dig as DigMapper; |
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use RemotelyLiving\PHPDNS\Resolvers\Exceptions\QueryFailure; |
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class Dig extends ResolverAbstract |
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{ |
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private const SUPPORTED_QUERY_TYPES = [ |
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DNSRecordType::TYPE_A, |
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DNSRecordType::TYPE_AAAA, |
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DNSRecordType::TYPE_CNAME, |
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DNSRecordType::TYPE_NS, |
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DNSRecordType::TYPE_SOA, |
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DNSRecordType::TYPE_MX, |
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DNSRecordType::TYPE_SRV, |
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DNSRecordType::TYPE_TXT, |
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DNSRecordType::TYPE_CAA, |
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DNSRecordType::TYPE_NAPTR, |
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]; |
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/** |
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* @var \RemotelyLiving\PHPDNS\Factories\SpatieDNS |
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*/ |
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private $spatieDNSFactory; |
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/** |
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* @var \RemotelyLiving\PHPDNS\Mappers\Dig |
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*/ |
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private $mapper; |
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/** |
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* @var \RemotelyLiving\PHPDNS\Entities\Hostname|null |
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*/ |
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private $nameserver; |
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public function __construct( |
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SpatieDNS $spatieDNSFactory = null, |
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DigMapper $mapper = null, |
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Hostname $nameserver = null |
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) { |
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$this->spatieDNSFactory = $spatieDNSFactory ?? new SpatieDNS(); |
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$this->mapper = $mapper ?? new DigMapper(); |
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$this->nameserver = $nameserver; |
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} |
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protected function doQuery(Hostname $hostname, DNSRecordType $type): DNSRecordCollection |
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{ |
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if (!self::isSupportedQueryType($type)) { |
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return new DNSRecordCollection(); |
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} |
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$dig = $this->spatieDNSFactory->createResolver($hostname, $this->nameserver); |
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try { |
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$response = ($type->equals(DNSRecordType::createANY())) |
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? $dig->getRecords(...self::SUPPORTED_QUERY_TYPES) |
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: $dig->getRecords((string) $type); |
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} catch (\Throwable $e) { |
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throw new QueryFailure($e->getMessage(), 0, $e); |
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} |
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return $this->mapResults($this->mapper, self::parseDigResponseToRows($response)); |
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} |
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private static function parseDigResponseToRows(string $digResponse): array |
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{ |
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$rows = []; |
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foreach (explode(PHP_EOL, self::normalizeColumns($digResponse)) as $line) { |
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if (!trim($line)) { |
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continue; |
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} |
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$columns = explode(' ', $line); |
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$rows[] = [$columns[0], $columns[1], $columns[2], $columns[3], implode(' ', array_slice($columns, 4))]; |
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} |
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return $rows; |
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} |
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private static function normalizeColumns(string $response): string |
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{ |
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$keysRemoved = preg_replace('/;(.*)/m', ' ', trim($response)); |
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$tabsRemoved = preg_replace('/(\t)/i', ' ', (string) $keysRemoved); |
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$breaksRemoved = preg_replace('/\s\s/m', '', (string) $tabsRemoved); |
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return (string) preg_replace('/(\(\s|(\s\)))/m', '', (string) $breaksRemoved); |
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} |
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private static function isSupportedQueryType(DNSRecordType $type): bool |
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{ |
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if ($type->isA(DNSRecordType::TYPE_ANY)) { |
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return true; |
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} |
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foreach (self::SUPPORTED_QUERY_TYPES as $queryType) { |
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if ($type->isA($queryType)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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remotelyliving /
php-dns
