From 4140a8afb040c761860b8dc4c72590d14de519bf Mon Sep 17 00:00:00 2001
From: Jan Koppe <post@jankoppe.de>
Date: Wed, 21 Apr 2021 09:45:23 +0200
Subject: [PATCH] dyndns: add support for digitialocean v6 records (#1832)

---
 dns/dyndns/src/etc/inc/plugins.inc.d/dyndns.inc       |  1 +
 .../src/etc/inc/plugins.inc.d/dyndns/phpDynDNS.inc    | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns.inc b/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns.inc
index 9b2e1b020..09ad91469 100644
--- a/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns.inc
+++ b/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns.inc
@@ -113,6 +113,7 @@ function dyndns_list()
         'desec-v6' => 'deSEC (v6)',
         'dhs' => 'DHS',
         'digitalocean' => 'DigitalOcean',
+        'digitalocean-v6' => 'DigitalOcean (v6)',
         'dnsexit' => 'DNSexit',
         'dnsomatic' => 'DNS-O-Matic',
         'duckdns' => 'Duck DNS',
diff --git a/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns/phpDynDNS.inc b/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns/phpDynDNS.inc
index e6428978a..5a3348780 100644
--- a/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns/phpDynDNS.inc
+++ b/dns/dyndns/src/etc/inc/plugins.inc.d/dyndns/phpDynDNS.inc
@@ -27,6 +27,7 @@
  *  DNS-O-Matic                 - Last Tested: 9 September 2010
  *  DNSexit                     - Last Tested: 20 July 2008
  *  DigitalOcean                - Last Tested: 25 June 2019
+ *  DigitalOcean v6             - Last Tested: 13 May 2020
  *  Duck DNS                    - Last Tested: 04 March 2015
  *  DynDNS Dynamic              - Last Tested: 12 July 2005
  *  EasyDNS                     - Last Tested: 20 July 2008
@@ -248,6 +249,7 @@ class updatedns
             case 'azurev6':
             case 'cloudflare-v6':
             case 'custom-v6':
+            case 'digitalocean-v6':
             case 'dynv6-v6':
             case 'he-net-v6':
             case 'godaddy-v6':
@@ -626,6 +628,7 @@ class updatedns
                 curl_setopt($ch, CURLOPT_URL, $server . 'hostname=' . $this->_dnsHost);
                 break;
             case 'digitalocean':
+            case 'digitalocean-v6':
                 /*
                 * dnsHost should be the root domain
                 * dnsUser should be the record ID
@@ -634,6 +637,13 @@ class updatedns
                 $server = "https://api.digitalocean.com/v2/domains/" . $this->_dnsHost . "/records/" . $this->_dnsUser;
                 $hostData = array("data" => "{$this->_dnsIP}");
 
+                /*
+                * DigitalOcean does not offer the API via IPv6, so we need
+                * to force sending the request using IPv4 when updating for IPv6
+                */
+                curl_setopt($ch, CURLOPT_INTERFACE, $this->_dnsRequestIf);
+                curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
+
                 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
                 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
                 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
@@ -1577,6 +1587,7 @@ class updatedns
                 }
                 break;
             case 'digitalocean':
+            case 'digitalocean-v6':
                 $output = json_decode($data);
                 if ($output->domain_record->data === $this->_dnsIP) {
                     $status = "Dynamic DNS: (Success) Record ID {$this->_dnsUser} updated to {$this->_dnsIP}";