setReverseDns

gistfile1.aw

<?php
/**
 * Add/update a reverse DNS record by providing an IP and FQDN.
 *
 * This assumes the SoftLayer API PHP client
 * <http://github.com/softlayer/softlayer-api-php-client> is installed in the
 * directory '/SoftLayer' in this script's path and that you wish to use the
 * SOAP client instead of our XML-RPC client.
 *
 * @see http://sldn.softlayer.com/wiki/index.php/SoftLayer_Network_Subnet
 * @license <http://sldn.softlayer.com/article/License>
 * @author SoftLayer Technologies, Inc. <sldn@softlayer.com>
 */
require_once('SoftLayer/SoapClient.class.php');

/**
 * Set your SoftLayer API username and key.
 */
$apiUser = 'USER HERE';
$apiKey = 'KEY HERE';

/**
 * IP address to modify, and the domain name to use
 */
$ipAddress = 'IP HERE';
$domainName = 'server1.example.com.'; // Fully Qualified Domain Name

/**
 * Connect to the SoftLayer_Dns_Domain_ResourceRecord and
 * SoftLayer_Network_Subnet services
 */
$dnsClient = SoftLayer_SoapClient::getClient('SoftLayer_Dns_Domain_ResourceRecord', NULL, $apiUser, $apiKey);
$subnetClient = SoftLayer_SoapClient::getClient('SoftLayer_Network_Subnet', NULL, $apiUser, $apiKey);

try {
    setPtrForIpv4($ipAddress, $domainName);
} catch( Exception $e) {
    die($e->getMessage());
}

/**
 * Setup a dummy SoftLayer Dns Domain ResourceRecord object for the resource record.
 * The only difference between an update to a record and a new record is population of the id key.
 */
function setPtrForIpv4($ip, $FQDN, $ttl = 86400) {
    global $subnetClient;
    /// Store id for specific IPs subnet, then discard the subnet object
    $subnetId = $subnetClient->getSubnetForIpAddress($ip)->id;
    // Store all of the existing reverse DNS records
    $existingRecords = getReverseRecords($subnetId);
    // Store the last octet of the server's IP for use as the host record
    $host = implode(array_slice(explode('.', $ip), -1, 1));
    $newRecord =  array (
        'id' => NULL,
        'data' => $FQDN,
        'domainId' => $existingRecords->id,
        'host' => $host,
        'ttl' => (int)$ttl,
        'type' => 'ptr'
    );
    $newRecord = (object)$newRecord;
    // If we already have a record for this host, set the ID of the existing record, then
    // set the FQDN
    foreach ($existingRecords->resourceRecords as $record) {
        if ($record->host == $host) {
            $newRecord->id = $record->id;
            $newRecord->data = $FQDN;
        }
    }
    updateDnsZone($newRecord);
}

/**
 * Updates or creates a reverse DNS record utilizing the given SoftLayer Dns Domain ResourceRecord
 */
function updateDnsZone($newRecord) {
    global $dnsClient;
    // Default to creation
    $method = "createObject";
    // If we have an id set, change the method to editObject, and setup the SoftLayer_Dns_Domain_ResourceRecord
    // to interact with the existing record
    if (!is_null($newRecord->id)) {
        $method = "editObject";
        $dnsClient->setInitParameter($newRecord->id);
    }
    // Create/edit the record, and return results
    return $dnsClient->$method($newRecord);
}

/**
 * Return an array of reverse DNS resource records when provided a subnet id
 */
function getReverseRecords($subnetId) {
    global $subnetClient;
    // Setup the client to interact with the specific subnet
    $subnetClient->setInitParameter($subnetId);
    return array_shift($subnetClient->getReverseDomainRecords());
}