diff options
Diffstat (limited to 'src')
| -rwxr-xr-x | src/conf_mode/dynamic_dns.py | 217 |
1 files changed, 60 insertions, 157 deletions
diff --git a/src/conf_mode/dynamic_dns.py b/src/conf_mode/dynamic_dns.py index 57c910a68..93e995b78 100755 --- a/src/conf_mode/dynamic_dns.py +++ b/src/conf_mode/dynamic_dns.py @@ -17,14 +17,13 @@ import os from sys import exit -from copy import deepcopy -from stat import S_IRUSR, S_IWUSR from vyos.config import Config -from vyos import ConfigError -from vyos.util import call +from vyos.configdict import dict_merge from vyos.template import render - +from vyos.util import call +from vyos.xml import defaults +from vyos import ConfigError from vyos import airbag airbag.enable() @@ -45,197 +44,101 @@ default_service_protocol = { 'zoneedit': 'zoneedit1' } -default_config_data = { - 'interfaces': [], - 'deleted': False -} - def get_config(config=None): - dyndns = deepcopy(default_config_data) if config: conf = config else: conf = Config() - base_level = ['service', 'dns', 'dynamic'] + base_level = ['service', 'dns', 'dynamic'] if not conf.exists(base_level): - dyndns['deleted'] = True - return dyndns - - for interface in conf.list_nodes(base_level + ['interface']): - node = { - 'interface': interface, - 'rfc2136': [], - 'service': [], - 'web_skip': '', - 'web_url': '' - } - - # set config level to e.g. "service dns dynamic interface eth0" - conf.set_level(base_level + ['interface', interface]) - # Handle RFC2136 - Dynamic Updates in the Domain Name System - for rfc2136 in conf.list_nodes(['rfc2136']): - rfc = { - 'name': rfc2136, - 'keyfile': '', - 'record': [], - 'server': '', - 'ttl': '600', - 'zone': '' - } - - # set config level - conf.set_level(base_level + ['interface', interface, 'rfc2136', rfc2136]) - - if conf.exists(['key']): - rfc['keyfile'] = conf.return_value(['key']) - - if conf.exists(['record']): - rfc['record'] = conf.return_values(['record']) - - if conf.exists(['server']): - rfc['server'] = conf.return_value(['server']) - - if conf.exists(['ttl']): - rfc['ttl'] = conf.return_value(['ttl']) - - if conf.exists(['zone']): - rfc['zone'] = conf.return_value(['zone']) - - node['rfc2136'].append(rfc) - - # set config level to e.g. "service dns dynamic interface eth0" - conf.set_level(base_level + ['interface', interface]) - # Handle DynDNS service providers - for service in conf.list_nodes(['service']): - srv = { - 'provider': service, - 'host': [], - 'login': '', - 'password': '', - 'protocol': '', - 'server': '', - 'custom' : False, - 'zone' : '' - } - - # set config level - conf.set_level(base_level + ['interface', interface, 'service', service]) - - # preload protocol from default service mapping - if service in default_service_protocol.keys(): - srv['protocol'] = default_service_protocol[service] - else: - srv['custom'] = True - - if conf.exists(['login']): - srv['login'] = conf.return_value(['login']) - - if conf.exists(['host-name']): - srv['host'] = conf.return_values(['host-name']) - - if conf.exists(['protocol']): - srv['protocol'] = conf.return_value(['protocol']) - - if conf.exists(['password']): - srv['password'] = conf.return_value(['password']) - - if conf.exists(['server']): - srv['server'] = conf.return_value(['server']) - - if conf.exists(['zone']): - srv['zone'] = conf.return_value(['zone']) - elif srv['provider'] == 'cloudflare': - # default populate zone entry with bar.tld if - # host-name is foo.bar.tld - srv['zone'] = srv['host'][0].split('.',1)[1] - - node['service'].append(srv) - - # Set config back to appropriate level for these options - conf.set_level(base_level + ['interface', interface]) - - # Additional settings in CLI - if conf.exists(['use-web', 'skip']): - node['web_skip'] = conf.return_value(['use-web', 'skip']) - - if conf.exists(['use-web', 'url']): - node['web_url'] = conf.return_value(['use-web', 'url']) - - # set config level back to top level - conf.set_level(base_level) - - dyndns['interfaces'].append(node) + return None + + dyndns = conf.get_config_dict(base_level, key_mangling=('-', '_'), get_first_key=True) + + # We have gathered the dict representation of the CLI, but there are default + # options which we need to update into the dictionary retrived. + for interface in dyndns['interface']: + if 'service' in dyndns['interface'][interface]: + # 'Autodetect' protocol used by DynDNS service + for service in dyndns['interface'][interface]['service']: + if service in default_service_protocol: + dyndns['interface'][interface]['service'][service].update( + {'protocol' : default_service_protocol.get(service)}) + else: + dyndns['interface'][interface]['service'][service].update( + {'custom': ''}) + + if 'rfc2136' in dyndns['interface'][interface]: + default_values = defaults(base_level + ['interface', 'rfc2136']) + for rfc2136 in dyndns['interface'][interface]['rfc2136']: + dyndns['interface'][interface]['rfc2136'][rfc2136] = dict_merge( + default_values, dyndns['interface'][interface]['rfc2136'][rfc2136]) return dyndns def verify(dyndns): # bail out early - looks like removal from running config - if dyndns['deleted']: + if not dyndns: return None # A 'node' corresponds to an interface - for node in dyndns['interfaces']: + if 'interface' not in dyndns: + return None + for interface in dyndns['interface']: # RFC2136 - configuration validation - for rfc2136 in node['rfc2136']: - if not rfc2136['record']: - raise ConfigError('Set key for service "{0}" to send DDNS updates for interface "{1}"'.format(rfc2136['name'], node['interface'])) + if 'rfc2136' in dyndns['interface'][interface]: + for rfc2136, config in dyndns['interface'][interface]['rfc2136'].items(): - if not rfc2136['zone']: - raise ConfigError('Set zone for service "{0}" to send DDNS updates for interface "{1}"'.format(rfc2136['name'], node['interface'])) + for tmp in ['record', 'zone', 'server', 'key']: + if tmp not in config: + raise ConfigError(f'"{tmp}" required for rfc2136 based ' + f'DynDNS service on "{interface}"') - if not rfc2136['keyfile']: - raise ConfigError('Set keyfile for service "{0}" to send DDNS updates for interface "{1}"'.format(rfc2136['name'], node['interface'])) - else: - if not os.path.isfile(rfc2136['keyfile']): - raise ConfigError('Keyfile for service "{0}" to send DDNS updates for interface "{1}" does not exist'.format(rfc2136['name'], node['interface'])) - - if not rfc2136['server']: - raise ConfigError('Set server for service "{0}" to send DDNS updates for interface "{1}"'.format(rfc2136['name'], node['interface'])) + if not os.path.isfile(config['key']): + raise ConfigError(f'"key"-file not found for rfc2136 based ' + f'DynDNS service on "{interface}"') # DynDNS service provider - configuration validation - for service in node['service']: - if not service['host']: - raise ConfigError('Set host-name for service "{0}" to send DDNS updates for interface "{1}"'.format(service['provider'], node['interface'])) + if 'service' in dyndns['interface'][interface]: + for service, config in dyndns['interface'][interface]['service'].items(): + error_msg = f'required for DynDNS service "{service}" on "{interface}"' + if 'host_name' not in config: + raise ConfigError(f'"host-name" {error_msg}') - if not service['login']: - raise ConfigError('Set login for service "{0}" to send DDNS updates for interface "{1}"'.format(service['provider'], node['interface'])) + if 'login' not in config: + raise ConfigError(f'"login" (username) {error_msg}') - if not service['password']: - raise ConfigError('Set password for service "{0}" to send DDNS updates for interface "{1}"'.format(service['provider'], node['interface'])) + if 'password' not in config: + raise ConfigError(f'"password" {error_msg}') - if service['custom'] is True: - if not service['protocol']: - raise ConfigError('Set protocol for service "{0}" to send DDNS updates for interface "{1}"'.format(service['provider'], node['interface'])) + if 'zone' in config: + if service != 'cloudflare': + raise ConfigError(f'"zone" option only supported with CloudFlare') - if not service['server']: - raise ConfigError('Set server for service "{0}" to send DDNS updates for interface "{1}"'.format(service['provider'], node['interface'])) + if 'custom' in config: + if 'protocol' not in config: + raise ConfigError(f'"protocol" {error_msg}') - if service['zone']: - if service['provider'] != 'cloudflare': - raise ConfigError('Zone option not allowed for "{0}", it can only be used for CloudFlare'.format(service['provider'])) + if 'server' not in config: + raise ConfigError(f'"server" {error_msg}') return None def generate(dyndns): # bail out early - looks like removal from running config - if dyndns['deleted']: + if not dyndns: return None - render(config_file, 'dynamic-dns/ddclient.conf.tmpl', dyndns) - - # Config file must be accessible only by its owner - os.chmod(config_file, S_IRUSR | S_IWUSR) - + render(config_file, 'dynamic-dns/ddclient.conf.tmpl', dyndns, trim_blocks=True, permission=0o600) return None def apply(dyndns): - if dyndns['deleted']: + if not dyndns: call('systemctl stop ddclient.service') if os.path.exists(config_file): os.unlink(config_file) - else: call('systemctl restart ddclient.service') |