function validateDomain($domainname)
{
$parentkeys = null;
$domainname = strtolower($domainname);
$dns = new Metaregistrar\DNS\dnsProtocol(false);
$tld = substr($domainname, strpos($domainname, '.') + 1);
$dnsservers = $dns->registrynameservers($tld);
if (!is_array($dnsservers)) {
throw new Metaregistrar\DNS\dnsException("DNSSEC validation not supported yet for the domain name " . $domainname);
}
foreach ($dnsservers as $dnsserver) {
$dns->setServer($dnsserver);
$result = $dns->Query($domainname, 'NS');
if ($result->getNameserverResultCount() > 0) {
$ns = $result->getNameserverResults();
foreach ($ns as $n) {
/* @var $n Metaregistrar\DNS\dnsNSresult */
$nameservers[] = $n->getNameserver();
}
$result = $dns->Query($domainname, 'DS');
if ($result->getResourceResultCount() == 0) {
#
# No DS record found at parent: domain is not secured
#
throw new Metaregistrar\DNS\dnsException("No DS record found at parent: Domainname is not secured");
} else {
$ds = $result->getResourceResults();
foreach ($ds as $d) {
/* @var $d Metaregistrar\DNS\dnsDSresult */
$pk['key'] = $d->getKey();
$pk['keytag'] = $d->getKeytag();
$pk['algorithm'] = $d->getAlgorithm();
$pk['matched'] = false;
$parentkeys[] = $pk;
}
}
break;
}
}
#
# Retrieve all necessary records
#
if (isset($nameservers) && is_array($nameservers)) {
foreach ($nameservers as $ns) {
$dns->setServer($ns);
$result = $dns->Query($domainname, 'RRSIG');
if ($result->getResourceResultCount() == 0) {
throw new Metaregistrar\DNS\dnsException("No RRSIG records found on " . $ns . " for domain name " . $domainname);
} else {
$rrsigs = $result->getResourceResults();
if (is_array($rrsigs)) {
foreach ($rrsigs as $rrsig) {
/* @var $rrsig Metaregistrar\DNS\dnsRRSIGresult */
if ($rrsig->getTypeCovered() == 'SOA') {
$rr[$ns] = $rrsig;
}
}
}
}
$result2 = $dns->Query($domainname, 'DNSKEY');
if ($result2->getResourceResultCount() == 0) {
throw new Metaregistrar\DNS\dnsException("No DNSKEY records found on " . $ns . " for domain name " . $domainname);
} else {
$ds = $result2->getResourceResults();
foreach ($ds as $childkey) {
/* @var $childkey Metaregistrar\DNS\dnsDNSKEYresult */
if ($childkey->getSep()) {
$dnskey[$ns] = $childkey;
}
}
}
if (!isset($rr) || !$rr[$ns]) {
throw new Metaregistrar\DNS\dnsException("No matching resource record type SOA found on " . $ns . " for " . $domainname);
}
if (!isset($dnskey) || !$dnskey[$ns]) {
throw new Metaregistrar\DNS\dnsException("No matching DNSKEY record found with SEP flag enabled on " . $ns . " for {$domainname}");
}
validateRRSIG($domainname, $rr[$ns], $ds);
validateDNSKEY($domainname, $dnskey[$ns], $parentkeys);
}
}
return true;
}
<?php
require 'autoload.php';
$dns = new Metaregistrar\DNS\dnsProtocol();
$dns->setServer('ns1.metaregistrar.com');
$result = $dns->Query('www.metaregistrar.com', 'A');
/* @var $result Metaregistrar\DNS\dnsResponse */
foreach ($result->getResourceResults() as $resource) {
if ($resource instanceof Metaregistrar\DNS\dnsAresult) {
echo $resource->getDomain() . ' - ' . $resource->getIpv4() . ' - ' . $resource->getTtl() . "\n";
}
}
