Add network configuration module

configs/settingsd/main.conf

@@ -35,3 +35,5 @@ enabled = yes
 [package_updates]
 enabled = yes
 
+[network]
+enabled = yes

plugins/functions/fmod_network.py

+# -*- coding: utf-8 -*-
+
+import socket
+from pyroute2 import IPDB
+from pyroute2.netlink.rtnl.ifinfmsg import IFF_UP
+from ipaddress import IPv4Address
+from yaml import dump
+
+from settingsd import const
+from settingsd import config
+from settingsd import service
+from settingsd import shared
+from settingsd import logger
+
+import settingsd.tools as tools
+import settingsd.tools.process
+import settingsd.tools.editors
+
+##### Private constants #####
+SERVICE_NAME = "network"
+
+NETWORK_METHODS_NAMESPACE = "network"
+NETWORK_SERVICES = {
+	'ssh': (22, ),
+	'http': (80, 443),
+	'smtp': (25, 465, 587)
+}
+
+
+##### Private classes #####
+class Network(service.FunctionObject) :
+	### DBus methods ###
+	@service.functionMethod(NETWORK_METHODS_NAMESPACE, in_signature="s")
+	def dumpCurrentSettings(self, filename):
+		settings = {}
+		settings['hostname'] = socket.gethostname()
+		settings['interfaces'] = self._dump_interfaces()
+		settings['dns'] = self._get_dns_servers()
+		with open(filename, 'w+') as network_config:
+			network_config.write(dump(settings))
+
+	def _dump_interfaces(self):
+		interfaces = {}
+
+		with IPDB() as ipdb:
+			for interface in ipdb.interfaces.values():
+				interfaces[interface.ifname] = {
+					'enabled': bool(interface.flags & IFF_UP),
+					'address': interface.ipaddr[0]['address'],
+					'mask': self._prefix_to_netmask(interface.ipaddr[0]['prefixlen']),
+					'services': {
+						service: False for service in NETWORK_SERVICES
+					}
+				}
+		return interfaces
+
+	def _get_dns_servers(self):
+		with open('/etc/resolv.conf', 'r') as resolv_conf:
+			return [
+				line.split(' ')[1]
+				for line in resolv_conf.readlines()
+				if line.startswith('nameserver')
+			]
+
+	def _prefix_to_netmask(self, prefix):
+		return str(IPv4Address(
+			(0xffffffff << (32 - prefix)) & 0xffffffff
+		))
+
+##### Public classes #####
+class Service(service.Service) :
+
+	### Public ###
+
+	def initService(self) :
+		shared.Functions.addSharedObject(SERVICE_NAME, Network(SERVICE_NAME, self))
+
+
+	### Private ###
+	@classmethod
+	def serviceName(self) :
+		return SERVICE_NAME