<?php

namespace AcmePhp\Core\Challenge\Dns;

use AcmePhp\Core\Challenge\ValidatorInterface;
use AcmePhp\Core\Exception\AcmeDnsResolutionException;
use AcmePhp\Core\Protocol\AuthorizationChallenge;

/**
 * Validator for DNS challenges.
 *
 * @author Jérémy Derussé <jeremy@derusse.com>
 */
class DnsValidator implements ValidatorInterface
{
    /** @var DnsDataExtractor */
    private $extractor;

    /** @var DnsResolverInterface */
    private $dnsResolver;

    /**
     * @param DnsDataExtractor     $extractor
     * @param DnsResolverInterface $dnsResolver
     */
    public function __construct(DnsDataExtractor $extractor = null, DnsResolverInterface $dnsResolver = null)
    {
        $this->extractor = null === $extractor ? new DnsDataExtractor() : $extractor;
        $this->dnsResolver = null === $dnsResolver ? (LibDnsResolver::isSupported() ? new LibDnsResolver() : new SimpleDnsResolver()) : $dnsResolver;
    }

    /**
     * {@inheritdoc}
     */
    public function supports(AuthorizationChallenge $authorizationChallenge)
    {
        return 'dns-01' === $authorizationChallenge->getType();
    }

    /**
     * {@inheritdoc}
     */
    public function isValid(AuthorizationChallenge $authorizationChallenge)
    {
        $recordName = $this->extractor->getRecordName($authorizationChallenge);
        $recordValue = $this->extractor->getRecordValue($authorizationChallenge);

        try {
            return \in_array($recordValue, $this->dnsResolver->getTxtEntries($recordName));
        } catch (AcmeDnsResolutionException $e) {
            return false;
        }
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Mzg0MDIxMzkyNzExNTQ1OCA4Mjk0NjkwMTk0MjU3MDA5IDE0MTg2MjcxMzEyOTg1MTY=