From e2c3f9dd04de8490551379df930f93dbfa2e0f59 Mon Sep 17 00:00:00 2001
From: John Crisp <jcrisp@safeandsoundit.co.uk>
Date: Thu, 2 Jul 2020 15:18:12 +0200
Subject: [PATCH] Add support for dinahosting

Fixes #203
---
 ChangeLog.md     |  1 +
 README.md        |  1 +
 ddclient.conf.in |  8 +++++
 ddclient.in      | 78 ++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 88 insertions(+)

diff --git a/ChangeLog.md b/ChangeLog.md
index 5a5ad5f..c4d1f56 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -9,6 +9,7 @@ repository history](https://github.com/ddclient/ddclient/commits/master).
 
   * Added support for OVH DynHost.
   * Added support for ClouDNS.
+  * Added support for dinahosting.
   * Added a build system to make it easier for distributions to package
     ddclient:
 
diff --git a/README.md b/README.md
index f640252..c97e8c0 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ Dynamic DNS services currently supported include:
     NearlyFreeSpeech.net - See https://www.nearlyfreespeech.net/services/dns for details
     OVH         - See https://www.ovh.com for details
     ClouDNS     - See https://www.cloudns.net
+    dinahosting - See https://dinahosting.com
 
 DDclient now supports many of cable/dsl broadband routers.
 
diff --git a/ddclient.conf.in b/ddclient.conf.in
index d1ef2a1..7c4e6cd 100644
--- a/ddclient.conf.in
+++ b/ddclient.conf.in
@@ -283,3 +283,11 @@ ssl=yes					# use ssl-support.  Works with
 # protocol=cloudns, \
 # dynurl=https://ipv4.cloudns.net/api/dynamicURL/?q=Njc1OTE2OjY3Njk0NDM6YTk2, \
 # myhost.example.com
+
+##
+## dinahosting (https://dinahosting.com)
+##
+# protocol=dinahosting, \
+# login=myusername,     \
+# password=mypassword   \
+# myhost.mydomain.com
diff --git a/ddclient.in b/ddclient.in
index c2a25da..51bde20 100755
--- a/ddclient.in
+++ b/ddclient.in
@@ -466,6 +466,17 @@ my %services = (
             'password' => setv(T_STRING, 0, 0, 'unused', undef),
         },
     },
+    'dinahosting' => {
+        'updateable' => undef,
+        'update'     => \&nic_dinahosting_update,
+        'examples'   => \&nic_dinahosting_examples,
+        'variables'  => {
+            %{$variables{'service-common-defaults'}},
+            'min-error-interval' => setv(T_DELAY,  0, 0, interval('8m'),     0),
+            'script'             => setv(T_STRING, 0, 1, '/special/api.php', undef),
+            'server'             => setv(T_FQDNP,  1, 0, 'dinahosting.com',  undef),
+        },
+    },
     'dnsmadeeasy' => {
         'updateable' => undef,
         'update'     => \&nic_dnsmadeeasy_update,
@@ -5051,6 +5062,73 @@ sub nic_cloudns_update {
     }
 }
 
+######################################################################
+## nic_dinahosting_examples
+######################################################################
+sub nic_dinahosting_examples {
+    return <<"EoEXAMPLE";
+o 'dinahosting'
+
+The 'dinahosting' protocol is used by dinahosting (https://dinahosting.com).
+Details about the API can be found at https://dinahosting.com/api.
+
+Available configuration variables and their defaults:
+  * login (required) is your username.
+  * password (required) is your password.
+  * server=dinahosting.com is the hostname part of the dinahosting API URL.
+  * script=/special/api.php is the path part of the dinahosting API URL.
+
+Example ${program}.conf file entry:
+  protocol=dinahosting,  \\
+  login=myusername,      \\
+  password=mypassword    \\
+  myhost.mydomain.com
+EoEXAMPLE
+}
+
+######################################################################
+## nic_dinahosting_update
+######################################################################
+sub nic_dinahosting_update {
+    debug("\nnic_dinahosting_update -------------------");
+    for my $h (@_) {
+        my $ip = delete $config{$h}{'wantip'};
+        info("setting IP address to %s for %s", $ip, $h);
+        verbose("UPDATE:", "updating %s", $h);
+        my ($hostname, $domain) = split(/\./, $h, 2);
+        my $url = "https://$config{$h}{'server'}$config{$h}{'script'}";
+        $url .= "?hostname=$hostname";
+        $url .= "&domain=$domain";
+        $url .= "&command=Domain_Zone_UpdateType" . is_ipv6($ip) ? 'AAAA' : 'A';
+        $url .= "&ip=$ip";
+        my $reply = geturl({
+            proxy => opt('proxy'),
+            login => $config{$h}{'login'},
+            password => $config{$h}{'password'},
+            url => $url,
+        });
+        $config{$h}{'status'} = 'failed';  # assume failure until otherwise determined
+        if (!$reply) {
+            failed("updating %s: failed to visit URL %s", $h, $url);
+            next;
+        }
+        next if !header_ok($h, $reply);
+        $reply =~ s/^.*?\n\n//s;  # Strip the headers.
+        if ($reply !~ /Success/i) {
+            $reply =~ /^responseCode = (\d+)$/m;
+            my $code = $1 // '<undefined>';
+            $reply =~ /^errors_0_message = '(.*)'$/m;
+            my $message = $1 // '<undefined>';
+            failed("updating %s: error %d: %s", $code, $message);
+            next;
+        }
+        $config{$h}{'ip'}     = $ip;
+        $config{$h}{'mtime'}  = $now;
+        $config{$h}{'status'} = 'good';
+        success("updating %s: IP address set to %s", $h, $ip);
+    }
+}
+
 # Execute main() if this file is run as a script or run via PAR (https://metacpan.org/pod/PAR),
 # otherwise do nothing. This "modulino" pattern makes it possible to import this file as a module
 # and test its functions directly; there's no need for test-only command-line arguments or stdout