Example PHP Script for a Dynamic DNS

This is an example script for running a Dynamic DNS on the Zones API; you have to alter the following constants below to your zones api settings: API_URL, API_USERNAME, API_PASSWORD, API_DOMAIN, API_SUBDOMAIN.

<?php
/**
 * Zones is a DNS Propogation REST Services API for your services/servers! 
 *
 * You may not change or alter any portion of this comment or credits
 * of supporting developers from this source code or any supporting source code
 * which is considered copyrighted (c) material of the original comment or credit authors.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * @copyright       Chronolabs Cooperative https://github.com/Chronolabs-Cooperative
 * @license         General Public License version 3 (http://labs.coop/briefs/legal/general-public-licence/13,3.html)
 * @package         zones-api
 * @since           1.0.0
 * @author          Simon Roberts <wishcraft@users.sourceforge.net>
 * @subpackage		example-cron
 * @description		Example Dynamic DNS Cron job/Scheduled Task
 * @link			https://github.com/Chronolabs-Cooperative/Zones-API-PHP
 */


    define('API_URL', 'http://zones.vps-a.snails.email');
    define('API_USERNAME', 'zonesapi-username');
    define('API_PASSWORD', 'zonesapi-password');
    define('API_DOMAIN', 'snails.email');
    define('API_SUBDOMAIN', 'marrickville.snails.email');
    define('API_AUTHKEY', '%apiurl/v1/authkey.api');
    define('API_DOMAINKEYS', '%apiurl/v1/%authkey/domains/json.api');
    define('API_DNSRECORDS', '%apiurl/v1/%authkey/%domainkey/zones/json.api');
    define('API_EDITRECORD', '%apiurl/v1/%authkey/%recordkey/edit/zone/json.api');
    define('API_DELETERECORD', '%apiurl/v1/%authkey/%recordkey/delete/zone/json.api');
    define('API_ADDRECORD', '%apiurl/v1/%authkey/zones.api');
    define('API_MYIPADDY', 'https://vcf5.sourceforge.io/myip/index.php?version=1&mode=allmyip&format=json');
    define('API_IPv4TYPE', 'A');
    define('API_IPv6TYPE', 'AAAA');
    
    if (!function_exists("getURIData")) {
        
        /* function getURIData()
         *
         * 	Get a supporting domain system for the API
         * @author 		Simon Roberts (Chronolabs) simon@labs.coop
         *
         * @return 		float()
         */
        function getURIData($uri = '', $timeout = 25, $connectout = 25, $post = array(), $headers = array())
        {
            if (!function_exists("curl_init"))
            {
                die("Install PHP Curl Extension ie: $ sudo apt-get install php-curl -y");
            }
            $GLOBALS['php-curl'][md5($uri)] = array();
            if (!$btt = curl_init($uri)) {
                return false;
            }
            if (count($post)==0 || empty($post))
                curl_setopt($btt, CURLOPT_POST, false);
            else {
                $uploadfile = false;
                foreach($post as $field => $value)
                    if (substr($value , 0, 1) == '@' && file_exists(substr($value , 1)))
                        $uploadfile = true;
                        
                curl_setopt($btt, CURLOPT_POST, true);
                curl_setopt($btt, CURLOPT_POSTFIELDS, http_build_query($post));
                            
                if (!empty($headers))
                    foreach($headers as $key => $value)
                        if ($uploadfile==true && substr($value, 0, strlen('Content-Type:')) == 'Content-Type:')
                            unset($headers[$key]);
                if ($uploadfile==true)
                    $headers[]  = 'Content-Type: multipart/form-data';
            }
            if (count($headers)==0 || empty($headers))
                curl_setopt($btt, CURLOPT_HEADER, false);
            else {
                curl_setopt($btt, CURLOPT_HEADER, true);
                curl_setopt($btt, CURLOPT_HTTPHEADER, $headers);
            }
            curl_setopt($btt, CURLOPT_CONNECTTIMEOUT, $connectout);
            curl_setopt($btt, CURLOPT_TIMEOUT, $timeout);
            curl_setopt($btt, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($btt, CURLOPT_VERBOSE, false);
            curl_setopt($btt, CURLOPT_SSL_VERIFYHOST, false);
            curl_setopt($btt, CURLOPT_SSL_VERIFYPEER, false);
            $data = curl_exec($btt);
            $GLOBALS['php-curl'][md5($uri)]['http']['posts'] = $post;
            $GLOBALS['php-curl'][md5($uri)]['http']['headers'] = $headers;
            $GLOBALS['php-curl'][md5($uri)]['http']['code'] = curl_getinfo($btt, CURLINFO_HTTP_CODE);
            $GLOBALS['php-curl'][md5($uri)]['header']['size'] = curl_getinfo($btt, CURLINFO_HEADER_SIZE);
            $GLOBALS['php-curl'][md5($uri)]['header']['value'] = curl_getinfo($btt, CURLINFO_HEADER_OUT);
            $GLOBALS['php-curl'][md5($uri)]['size']['download'] = curl_getinfo($btt, CURLINFO_SIZE_DOWNLOAD);
            $GLOBALS['php-curl'][md5($uri)]['size']['upload'] = curl_getinfo($btt, CURLINFO_SIZE_UPLOAD);
            $GLOBALS['php-curl'][md5($uri)]['content']['length']['download'] = curl_getinfo($btt, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
            $GLOBALS['php-curl'][md5($uri)]['content']['length']['upload'] = curl_getinfo($btt, CURLINFO_CONTENT_LENGTH_UPLOAD);
            $GLOBALS['php-curl'][md5($uri)]['content']['type'] = curl_getinfo($btt, CURLINFO_CONTENT_TYPE);
            curl_close($btt);
            return $data;
        }
    }
    
    $ips = json_decode(getURIData(API_MYIPADDY), true);
    $authkey = json_decode(getURIData(str_replace('%apiurl', API_URL, API_AUTHKEY), 25, 25, array('username' => API_USERNAME, 'password' => API_PASSWORD, 'format' => 'json')), true);
    $domains = json_decode(getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], API_DOMAINKEYS))), true);
    
    if (isset($domains['domains']) && is_array($domains['domains']))
        foreach($domains['domains'] as $domain) {
            if ($domain['name'] == API_DOMAIN || $domain['master'] == API_DOMAIN) {
                if (!defined("API_DOMAINKEY"))
                    define("API_DOMAINKEY", $domain['domainkey']);
            }
        }
    
    if (defined("API_DOMAINKEY")) {
        $records = json_decode(getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], str_replace('%domainkey', API_DOMAINKEY, API_DNSRECORDS)))), true);
        if (isset($records['zones']) && is_array($records['zones']))
            foreach($records['zones'] as $record) {
                if (isset($ips['ipv4'][0]['ip']['address']) && !empty($ips['ipv4'][0]['ip']['address']) && $record['name'] == API_SUBDOMAIN && $record['type'] == API_IPv4TYPE) {
                    define("API_IPv4RECORDKEY", $record['recordkey']);
                    if ($record['content'] != $ips['ipv4'][0]['ip']['address'])
                        define("API_IPv4ACTION", 'EDIT');
                    elseif ($record['content'] == $ips['ipv4'][0]['ip']['address'])
                        define("API_IPv4ACTION", 'NONE');
                } elseif (!isset($ips['ipv4'][0]['ip']['address']) && $record['name'] == API_SUBDOMAIN && $record['type'] == API_IPv4TYPE) {
                    define("API_IPv4ACTION", 'DELETE');
                }
                if (isset($ips['ipv6'][0]['ip']['address']) && !empty($ips['ipv6'][0]['ip']['address']) && $record['name'] == API_SUBDOMAIN && $record['type'] == API_IPv6TYPE) {
                    define("API_IPv6RECORDKEY", $record['recordkey']);
                    if ($record['content'] != $ips['ipv6'][0]['ip']['address'])
                        define("API_IPv6ACTION", 'EDIT');
                    elseif ($record['content'] == $ips['ipv6'][0]['ip']['address'])
                        define("API_IPv6ACTION", 'NONE');
                } elseif (!isset($ips['ipv6'][0]['ip']['address']) && $record['name'] == API_SUBDOMAIN && $record['type'] == API_IPv6TYPE) {
                    define("API_IPv6ACTION", 'DELETE');
                }
            }
        if (isset($ips['ipv4'][0]['ip']['address']) && !empty($ips['ipv4'][0]['ip']['address']) && !defined("API_IPv4ACTION"))
            define("API_IPv4ACTION", 'ADD');
        if (isset($ips['ipv6'][0]['ip']['address']) && !empty($ips['ipv6'][0]['ip']['address']) && !defined("API_IPv6ACTION"))
            define("API_IPv6ACTION", 'ADD');
    }
    
    if (defined("API_IPv4ACTION")) {
        echo "\n\nIPv4 " . API_IPv4ACTION . ": " . $ips['ipv4'][0]['ip']['address'];
        switch (API_IPv4ACTION) {
            case 'ADD':
                @getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], API_ADDRECORD)), 25, 25, array('domain' => API_DOMAINKEY, 'type' => API_IPv4TYPE, 'name' => API_SUBDOMAIN, 'content'=>$ips['ipv4'][0]['ip']['address'], 'ttl' => 6000, 'prio' => 5, 'format' => 'json'));
                break;
            case 'EDIT':
                @getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], str_replace('%recordkey', API_IPv4RECORDKEY, API_EDITRECORD))), 25, 25, array('content'=>$ips['ipv4'][0]['ip']['address']));
                break;
            case 'DELETE':
                @getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], str_replace('%recordkey', API_IPv4RECORDKEY, API_DELETERECORD))));
                break;
        }
    }
    
    if (defined("API_IPv6ACTION")) {
        echo "\n\nIPv6" . API_IPv4ACTION . ": " . $ips['ipv6'][0]['ip']['address'];
        switch (API_IPv6ACTION) {
            case 'ADD':
                @getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], API_ADDRECORD)), 25, 25, array('domain' => API_DOMAINKEY, 'type' => API_IPv6TYPE, 'name' => API_SUBDOMAIN, 'content'=>$ips['IPv6'][0]['ip']['address'], 'ttl' => 6000, 'prio' => 5, 'format' => 'json'));
                break;
            case 'EDIT':
                @getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], str_replace('%recordkey', API_IPv6RECORDKEY, API_EDITRECORD))), 25, 25, array('content'=>$ips['IPv6'][0]['ip']['address']));
                break;
            case 'DELETE':
                @getURIData(str_replace('%apiurl', API_URL, str_replace('%authkey', $authkey['authkey'], str_replace('%recordkey', API_IPv6RECORDKEY, API_DELETERECORD))));
                break;
        }
    }
    ?>