vendor/symfony/phpunit-bridge/DnsMock.php

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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Bridge\PhpUnit;

/**
 * @author Nicolas Grekas <p@tchwork.com>
 */
class DnsMock
{
    private static $hosts = array();
    private static $dnsTypes = array(
        'A' => DNS_A,
        'MX' => DNS_MX,
        'NS' => DNS_NS,
        'SOA' => DNS_SOA,
        'PTR' => DNS_PTR,
        'CNAME' => DNS_CNAME,
        'AAAA' => DNS_AAAA,
        'A6' => DNS_A6,
        'SRV' => DNS_SRV,
        'NAPTR' => DNS_NAPTR,
        'TXT' => DNS_TXT,
        'HINFO' => DNS_HINFO,
    );

    /**
     * Configures the mock values for DNS queries.
     *
     * @param array $hosts Mocked hosts as keys, arrays of DNS records as returned by dns_get_record() as values
     */
    public static function withMockedHosts(array $hosts)
    {
        self::$hosts = $hosts;
    }

    public static function checkdnsrr($hostname, $type = 'MX')
    {
        if (!self::$hosts) {
            return \checkdnsrr($hostname, $type);
        }
        if (isset(self::$hosts[$hostname])) {
            $type = strtoupper($type);

            foreach (self::$hosts[$hostname] as $record) {
                if ($record['type'] === $type) {
                    return true;
                }
                if ('ANY' === $type && isset(self::$dnsTypes[$record['type']]) && 'HINFO' !== $record['type']) {
                    return true;
                }
            }