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<?php |
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namespace Spatie\Dns; |
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use Spatie\Dns\Exceptions\CouldNotFetchDns; |
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use Spatie\Dns\Exceptions\InvalidArgument; |
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use Symfony\Component\Process\Process; |
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class Dns |
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{ |
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protected string $domain = ''; |
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protected string $nameserver = ''; |
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protected array $recordTypes = [ |
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'A', |
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'AAAA', |
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'CNAME', |
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'NS', |
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'SOA', |
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'MX', |
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'SRV', |
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'TXT', |
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'DNSKEY', |
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'CAA', |
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'NAPTR', |
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]; |
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public function __construct(string $domain, string $nameserver = '') |
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{ |
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if (empty($domain)) { |
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throw InvalidArgument::domainIsMissing(); |
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} |
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$this->nameserver = $nameserver; |
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$this->domain = $this->sanitizeDomainName($domain); |
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} |
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public function useNameserver(string $nameserver) |
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{ |
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$this->nameserver = $nameserver; |
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return $this; |
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} |
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public function getDomain(): string |
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{ |
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return $this->domain; |
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} |
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public function getNameserver(): string |
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{ |
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return $this->nameserver; |
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} |
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public function getRecords(...$types): string |
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{ |
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$types = $this->determineTypes($types); |
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$types = count($types) |
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? $types |
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: $this->recordTypes; |
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$dnsRecords = array_map([$this, 'getRecordsOfType'], $types); |
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return implode('', array_filter($dnsRecords)); |
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} |
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/** |
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* @throws InvalidArgument |
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*/ |
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protected function determineTypes(array $types): array |
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{ |
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$types = is_array($types[0] ?? null) |
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? $types[0] |
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: $types; |
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$types = array_map('strtoupper', $types); |
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if ($invalidTypes = array_diff($types, $this->recordTypes)) { |
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throw InvalidArgument::filterIsNotAValidRecordType(reset($invalidTypes), $this->recordTypes); |
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} |
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return $types; |
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} |
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protected function sanitizeDomainName(string $domain): string |
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{ |
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$domain = str_replace(['http://', 'https://'], '', $domain); |
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$domain = strtok($domain, '/'); |
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return strtolower($domain); |
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} |
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/** |
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* @throws CouldNotFetchDns |
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*/ |
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protected function getRecordsOfType(string $type): string |
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{ |
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$nameserverPart = $this->getSpecificNameserverPart(); |
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$command = array_filter([ |
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'dig', |
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'+nocmd', |
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$nameserverPart, |
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$this->domain, |
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$type, |
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'+multiline', |
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'+noall', |
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'+answer', |
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]); |
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$process = new Process($command); |
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$process->run(); |
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if (! $process->isSuccessful()) { |
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throw CouldNotFetchDns::digReturnedWithError(trim($process->getErrorOutput())); |
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} |
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return $process->getOutput(); |
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} |
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protected function getSpecificNameserverPart(): ?string |
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{ |
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if ($this->nameserver === '') { |
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return null; |
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} |
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return '@'.$this->nameserver; |
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} |
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} |
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spatie /
dns
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