ddclient: T5708: Migration to 3.11.1 and related improvements

- Migrate to ddclient 3.11.1 and enforce debian/control dependency
- Add dual stack support for additional protocols
- Restrict usage of `porkbun` protocol, VyOS configuration structure
  isn't compatible with porkbun yet
- Improve and cleanup error messages

4 files changed, 32 insertions, 17 deletions

diff --git a/src/completion/list_ddclient_protocols.sh b/src/completion/list_ddclient_protocols.sh
index 3b4eff4d6..c8855b5d1 100755
--- a/src/completion/list_ddclient_protocols.sh
+++ b/src/completion/list_ddclient_protocols.sh
@@ -14,4 +14,4 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-echo -n $(ddclient -list-protocols | grep  -vE 'nsupdate|cloudns')
+echo -n $(ddclient -list-protocols | grep  -vE 'nsupdate|cloudns|porkbun')
diff --git a/src/conf_mode/dns_dynamic.py b/src/conf_mode/dns_dynamic.py
index d71dc22fd..d6ef620fe 100755
--- a/src/conf_mode/dns_dynamic.py
+++ b/src/conf_mode/dns_dynamic.py
@@ -30,16 +30,21 @@ config_file = r'/run/ddclient/ddclient.conf'
 systemd_override = r'/run/systemd/system/ddclient.service.d/override.conf'
 
 # Protocols that require zone
-zone_necessary = ['cloudflare', 'godaddy', 'hetzner', 'gandi', 'nfsn']
+zone_necessary = ['cloudflare', 'digitalocean', 'godaddy', 'hetzner', 'gandi', 'nfsn']
+zone_supported = zone_necessary + ['dnsexit2', 'zoneedit1']
 
 # Protocols that do not require username
-username_unnecessary = ['1984', 'cloudflare', 'cloudns', 'duckdns', 'freemyip', 'hetzner', 'keysystems', 'njalla']
+username_unnecessary = ['1984', 'cloudflare', 'cloudns', 'digitalocean', 'dnsexit2',
+                        'duckdns', 'freemyip', 'hetzner', 'keysystems', 'njalla',
+                        'regfishde']
 
 # Protocols that support TTL
-ttl_supported = ['cloudflare', 'gandi', 'hetzner', 'dnsexit', 'godaddy', 'nfsn']
+ttl_supported = ['cloudflare', 'dnsexit2', 'gandi', 'hetzner', 'godaddy', 'nfsn']
 
 # Protocols that support both IPv4 and IPv6
-dualstack_supported = ['cloudflare', 'dyndns2', 'freedns', 'njalla']
+dualstack_supported = ['cloudflare', 'digitalocean', 'dnsexit2', 'duckdns',
+                       'dyndns2', 'easydns', 'freedns', 'hetzner', 'infomaniak',
+                       'njalla']
 
 # dyndns2 protocol in ddclient honors dual stack for selective servers
 # because of the way it is implemented in ddclient
@@ -88,32 +93,31 @@ def verify(dyndns):
         # Dynamic DNS service provider - configuration validation
         if 'service' in dyndns['address'][address]:
             for service, config in dyndns['address'][address]['service'].items():
-                error_msg = f'is required for Dynamic DNS service "{service}" on "{address}"'
+                error_msg_req = f'is required for Dynamic DNS service "{service}" on "{address}" with protocol "{config["protocol"]}"'
+                error_msg_uns = f'is not supported for Dynamic DNS service "{service}" on "{address}" with protocol "{config["protocol"]}"'
 
                 for field in ['host_name', 'password', 'protocol']:
                     if field not in config:
-                        raise ConfigError(f'"{field.replace("_", "-")}" {error_msg}')
+                        raise ConfigError(f'"{field.replace("_", "-")}" {error_msg_req}')
 
                 if config['protocol'] in zone_necessary and 'zone' not in config:
-                    raise ConfigError(f'"zone" {error_msg}')
+                    raise ConfigError(f'"zone" {error_msg_req}')
 
-                if config['protocol'] not in zone_necessary and 'zone' in config:
-                    raise ConfigError(f'"{config["protocol"]}" does not support "zone"')
+                if config['protocol'] not in zone_supported and 'zone' in config:
+                    raise ConfigError(f'"zone" {error_msg_uns}')
 
                 if config['protocol'] not in username_unnecessary and 'username' not in config:
-                    raise ConfigError(f'"username" {error_msg}')
+                    raise ConfigError(f'"username" {error_msg_req}')
 
                 if config['protocol'] not in ttl_supported and 'ttl' in config:
-                    raise ConfigError(f'"{config["protocol"]}" does not support "ttl"')
+                    raise ConfigError(f'"ttl" {error_msg_uns}')
 
                 if config['ip_version'] == 'both':
                     if config['protocol'] not in dualstack_supported:
-                        raise ConfigError(f'"{config["protocol"]}" does not support '
-                                          f'both IPv4 and IPv6 at the same time')
+                        raise ConfigError(f'Both IPv4 and IPv6 at the same time {error_msg_uns}')
                     # dyndns2 protocol in ddclient honors dual stack only for dyn.com (dyndns.org)
                     if config['protocol'] == 'dyndns2' and 'server' in config and config['server'] not in dyndns_dualstack_servers:
-                        raise ConfigError(f'"{config["protocol"]}" does not support '
-                                          f'both IPv4 and IPv6 at the same time for "{config["server"]}"')
+                        raise ConfigError(f'Both IPv4 and IPv6 at the same time {error_msg_uns} for "{config["server"]}"')
 
                 if {'wait_time', 'expiry_time'} <= config.keys() and int(config['expiry_time']) < int(config['wait_time']):
                         raise ConfigError(f'"expiry-time" must be greater than "wait-time"')
diff --git a/src/migration-scripts/dns-dynamic/1-to-2 b/src/migration-scripts/dns-dynamic/1-to-2
index 8aaedf210..8b599b57a 100644
--- a/src/migration-scripts/dns-dynamic/1-to-2
+++ b/src/migration-scripts/dns-dynamic/1-to-2
@@ -18,6 +18,8 @@
 # - migrate "service dns dynamic timeout ..."
 #        to "service dns dynamic interval ..."
 # - remove "service dns dynamic address <interface> web-options ..." when <interface> != "web"
+# - migrate "service dns dynamic address <interface> service <service> protocol dnsexit"
+#        to "service dns dynamic address <interface> service <service> protocol dnsexit2"
 
 import sys
 from vyos.configtree import ConfigTree
@@ -51,6 +53,15 @@ for address in config.list_nodes(address_path):
     if config.exists(address_path + [address, 'web-options']) and address != 'web':
         config.delete(address_path + [address, 'web-options'])
 
+# Migrate "service dns dynamic address <interface> service <service> protocol dnsexit"
+#      to "service dns dynamic address <interface> service <service> protocol dnsexit2"
+for address in config.list_nodes(address_path):
+    for svc_cfg in config.list_nodes(address_path + [address, 'service']):
+        if config.exists(address_path + [address, 'service', svc_cfg, 'protocol']):
+            protocol = config.return_value(address_path + [address, 'service', svc_cfg, 'protocol'])
+            if protocol == 'dnsexit':
+                config.set(address_path + [address, 'service', svc_cfg, 'protocol'], 'dnsexit2')
+
 try:
     with open(file_name, 'w') as f:
         f.write(config.to_string())
diff --git a/src/validators/ddclient-protocol b/src/validators/ddclient-protocol
index bc6826120..8f455e12e 100755
--- a/src/validators/ddclient-protocol
+++ b/src/validators/ddclient-protocol
@@ -14,7 +14,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-ddclient -list-protocols | grep -vE 'nsupdate|cloudns' | grep -qw $1
+ddclient -list-protocols | grep -vE 'nsupdate|cloudns|porkbun' | grep -qw $1
 
 if [ $? -gt 0 ]; then
     echo "Error: $1 is not a valid protocol, please choose from the supported list of protocols"