Dynamic DNS: Support Google Domains (#1411)

* added dynamic DNS support for Google Domains

* use tabs to be consistent

* add missing error message, last-tested date

(cherry picked from commit 9b23eeef)

src/etc/inc/dyndns.class

@@ -32,6 +32,7 @@
 	 *    - GratisDNS (gratisdns.dk)
 	 *    - City Network (citynetwork.se)
 	 *    - Duck DNS (duckdns.org)
+	 *    - Google Domains (domains.google.com)
 	 * +----------------------------------------------------+
 	 *  Requirements:
 	 *    - PHP version 4.0.2 or higher with the CURL Library and the PCRE Library
@@ -75,6 +76,7 @@
 	 *  OVH DynHOST	   - Last Tested: NEVER
 	 *  City Network   - Last Tested: 13 November 2013
 	 *  Duck DNS       - Last Tested: 04 March 2015
+	 *  Google Domains - Last Tested: 20 February 2017
 	 * +====================================================+
 	 *
 	 * @author	E.Kristensen
@@ -248,6 +250,7 @@
 				case 'eurodns':
 				case 'gratisdns':
 				case 'ovh-dynhost':
+				case 'googledomains':
 				case 'citynetwork':
 				case 'duckdns':
 					$this->_update();
@@ -702,6 +705,19 @@
 					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
 					curl_setopt($ch, CURLOPT_URL, $server . '?domains=' . str_replace('.duckdns.org', '', $this->_dnsHost) . '&token=' . $this->_dnsUser);
 					break;
+				case 'googledomains':
+					if ($this->_dnsVerboseLog)
+						log_error("Google Domains: ({$this->_dnsHost}): DNS update() starting.");
+					$server = "https://domains.google.com/nic/update";
+					$post_data['hostname'] = $this->_dnsHost;
+					$post_data['myip'] = $this->_dnsIP;
+					$post_data['offline'] = 'no';
+					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
+					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
+					curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
+					curl_setopt($ch, CURLOPT_URL, $server);
+					curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
+					break;
 				default:
 					break;
 			}
@@ -1208,6 +1224,30 @@
 					        $this->_debug($data);
 					}
 					break;
+				case 'googledomains':
+					if (preg_match('/notfqdn/i', $data)) {
+						$status = "Dynamic DNS: (Error) Not a FQDN";
+					} else if (preg_match('/nochg/i', $data)) {
+						$status = "Dynamic DNS: (Success) No change in IP address";
+						$successful_update = true;
+					} else if (preg_match('/good/i', $data)) {
+						$status = "Dynamic DNS: (Success) IP address updated successfully";
+						$successful_update = true;
+					} else if (preg_match('/badauth/i', $data)) {
+						$status = "Dynamic DNS: (Error) Authentication failed";
+					} else if (preg_match('/nohost/i', $data)) {
+						$status = "Dynamic DNS: (Error) Hostname does not exist or does not have dynamic DNS enabled";
+					} else if (preg_match('/badagent/i', $data)) {
+						$status = "Dynamic DNS: (Error) Bad request";
+					} else if (preg_match('/abuse/i', $data)) {
+						$status = "Dynamic DNS: (Error) Access has been blocked for abuse";
+					} else if (preg_match('/911/i', $data)) {
+						$status = "Dynamic DNS: (Error) Server-side error or maintenance";
+					} else {
+						$status = "Dynamic DNS: (Unknown Response)";
+						log_error("Dynamic DNS: PAYLOAD: {$data}");
+						$this->_debug($data);
+					}
 			}
 
 			if($successful_update == true) {

src/etc/inc/services.inc

@@ -1553,6 +1553,7 @@ function services_dyndns_list()
       'eurodns' => 'EuroDNS',
       'freedns' => 'freeDNS',
       'gratisdns' => 'GratisDNS',
+      'googledomains' => 'Google Domains',
       'he-net' => 'HE.net',
       'he-net-v6' => 'HE.net (v6)',
       'he-net-tunnelbroker' => 'HE.net Tunnelbroker',