dns-over-https/examples/custom-config.php
2019-06-12 13:48:57 +02:00

47 lines
1.2 KiB
PHP

<?php
require __DIR__."/_bootstrap.php";
use Amp\Dns;
use Amp\DoH;
use Amp\Loop;
use Amp\Promise;
// Used only by the subresolver for resolving the DoH nameserver URL
$customConfigLoader = new class implements Dns\ConfigLoader {
public function loadConfig(): Promise
{
return Amp\call(function () {
$hosts = yield (new Dns\HostLoader)->loadHosts();
return new Dns\Config([
"8.8.8.8:53",
"[2001:4860:4860::8888]:53",
], $hosts, $timeout = 5000, $attempts = 3);
});
}
};
// Set default resolver to DNS-over-https resolver
$DohConfig = new DoH\DoHConfig(
[
new DoH\Nameserver('https://daniil.it/dns-query'),
new DoH\Nameserver('https://mozilla.nonexistant-dns.com/dns-query'),
new DoH\Nameserver('https://mozilla.cloudflare-dns.com/dns-query'), // Will fallback to this
],
null,
null,
$customConfigLoader
);
Dns\resolver(new DoH\Rfc8484StubResolver($DohConfig));
Loop::run(function () {
$hostname = "amphp.org";
try {
pretty_print_records($hostname, yield Dns\resolve($hostname));
} catch (Dns\DnsException $e) {
pretty_print_error($hostname, $e);
}
});