Added support for ydns.io

ddclient.in

@@ -921,6 +921,16 @@ my %services = (
             'server'       => setv(T_FQDNP, 1, 0, 'pddimp.yandex.ru', undef),
         },
     },
+    'ydns' => {
+        'updateable' => undef,
+        'update'     => \&nic_ydns_update,
+        'examples'   => \&nic_ydns_examples,
+        'variables' => {
+            %{$variables{'service-common-defaults'}},
+            'min-interval' => setv(T_DELAY, 0, 0, interval('5m'),     0),
+            'server'       => setv(T_FQDNP, 1, 0, 'ydns.io/api/v1', undef),
+        },
+    },
     'zoneedit1' => {
         'updateable' => undef,
         'update'     => \&nic_zoneedit1_update,
@@ -6420,6 +6430,96 @@ sub nic_yandex_update {
     }
 }
 
+
+######################################################################
+## nic_ydns_examples
+######################################################################
+sub nic_ydns_examples {
+    return <<"EoEXAMPLE";
+o YDNS
+
+The 'ydns' protocol is used to by DNS services offered by https://ydns.io.
+
+Configuration variables applicable to the 'ydns' protocol are:
+  protocol=ydns                ##
+  server=fqdn.of.service       ## can be omitted, defaults to ydns.io/api/v1
+  login=username               ## your API username
+  password=secret              ## your API secret
+  fully.qualified.host         ## the host registered with the service.
+
+Example ${program}.conf file entries:
+  ## single host update
+  protocol=ydns,                                                \\
+  login=eXample9V9ddVxyjpqN2,                                   \\
+  password=DONOTUSEQ7THYJYVPFZT5R7CYXZQCH                       \\
+  record.myhost.com
+
+  ## multiple host update
+  protocol=ydns,                                                \\
+  login=eXample9V9ddVxyjpqN2,                                   \\
+  password=DONOTUSEQ7THYJYVPFZT5R7CYXZQCH                       \\
+  record.myhost.com,other.myhost.com
+EoEXAMPLE
+}
+######################################################################
+## nic_ydns_update
+##
+## written by Jesse Schlueter
+##
+######################################################################
+sub nic_ydns_update {
+    debug("\nnic_ydns_update ---------------------");
+
+    # group hosts with identical credentials together
+    my %groups = group_hosts_by([ @_ ], [ qw(server login password) ]);
+
+    # update each set of hosts that had the same credentials
+    foreach my $sig (keys %groups) {
+        my @hosts   = @{$groups{$sig}};
+        my $key     = $hosts[0];
+
+        # FQDNs
+        for my $domain (@hosts) {
+            my $ipv4  = delete $config{$domain}{'wantipv4'};
+            my $ipv6  = delete $config{$domain}{'wantipv6'};
+
+            # Update IPv4 and IPv6 record using the same call
+            foreach my $ip ($ipv4, $ipv6) {
+                next if (!$ip);
+                my $ipv  = ($ip eq ($ipv6 // '')) ? '6' : '4';
+                my $type = ($ip eq ($ipv6 // '')) ? 'AAAA' : 'A';
+
+                info("updating %s: setting IPv$ipv address to %s", $domain, $ip);
+                $config{$domain}{"status-ipv$ipv"} = 'failed';
+
+                my $url = "https://$config{$key}{'server'}/update/?host=$domain&ip=$ip";
+            
+                my $reply = geturl(
+                    proxy => opt('proxy'),
+                    url => $url,
+                    method => 'GET',
+                    login => $config{$key}{'login'},
+                    password => $config{$key}{'password'}
+                );
+                unless ($reply) {
+                    failed("updating %s: Could not connect to %s.", $domain, $config{$key}{'server'});
+                    next;
+                }
+
+                my $ok = header_ok($domain, $reply);
+                if ($ok) {
+                    success("updating %s: IPv$ipv address set to %s", $domain, $ip);
+                    $config{$domain}{"ipv$ipv"} = $ip;
+                    $config{$domain}{'mtime'} = $now;
+                    $config{$domain}{"status-ipv$ipv"} = 'good';
+                } else {
+                    failed("updating %s: invalid reply.", $domain);
+                }
+            }
+        }
+    }
+}
+
 ######################################################################
 ## nic_duckdns_examples
 ######################################################################