/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/networkstate/windows.py is in python-ubuntu-sso-client 13.10-0ubuntu11.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 | # -*- coding: utf-8 -*-
#
# Copyright 2011-2012 Canonical Ltd.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# In addition, as a special exception, the copyright holders give
# permission to link the code of portions of this program with the
# OpenSSL library under certain conditions as described in each
# individual source file, and distribute linked combinations
# including the two.
# You must obey the GNU General Public License in all respects
# for all of the code used other than OpenSSL. If you modify
# file(s) with this exception, you may extend this exception to your
# version of the file(s), but you are not obligated to do so. If you
# do not wish to do so, delete this exception statement from your
# version. If you delete this exception statement from all source
# files in the program, then also delete it here.
"""Network status implementation on Windows."""
# pylint: disable=F0401
# distutils-extra: ignore-import=pythoncom,win32com.server.policy
# distutils-extra: ignore-import=win32com.client
import pythoncom
# pylint: enable=F0401
from ctypes import windll, byref
from ctypes.wintypes import DWORD
from threading import Thread
from twisted.internet import defer
# pylint: disable=F0401
from win32com.server.policy import DesignatedWrapPolicy
from win32com.client import Dispatch
# pylint: enable=F0401
from ubuntu_sso.networkstate import NetworkFailException
from ubuntu_sso.networkstate.networkstates import ONLINE, OFFLINE
from ubuntu_sso.logger import setup_logging
logger = setup_logging("ubuntu_sso.networkstate")
# naming errors are deliberated because we are following the COM naming to make
# it clear for later developers.
# pylint: disable=C0103
# from EventSys.h
PROGID_EventSystem = "EventSystem.EventSystem"
PROGID_EventSubscription = "EventSystem.EventSubscription"
# SENS (System Event Notification Service) values for the events,
# this events contain the uuid of the event, the name of the event to be used
# as well as the method name of the method in the ISesNetwork interface that
# will be executed for the event.
# For more info look at:
# http://msdn.microsoft.com/en-us/library/aa377384(v=vs.85).aspx
SUBSCRIPTION_NETALIVE = ('{cd1dcbd6-a14d-4823-a0d2-8473afde360f}',
'UbuntuOne Network Alive',
'ConnectionMade')
SUBSCRIPTION_NETALIVE_NOQOC = ('{a82f0e80-1305-400c-ba56-375ae04264a1}',
'UbuntuOne Net Alive No Info',
'ConnectionMadeNoQOCInfo')
SUBSCRIPTION_NETLOST = ('{45233130-b6c3-44fb-a6af-487c47cee611}',
'UbuntuOne Network Lost',
'ConnectionLost')
SUBSCRIPTION_REACH = ('{4c6b2afa-3235-4185-8558-57a7a922ac7b}',
'UbuntuOne Network Reach',
'ConnectionMade')
SUBSCRIPTION_REACH_NOQOC = ('{db62fa23-4c3e-47a3-aef2-b843016177cf}',
'UbuntuOne Network Reach No Info',
'ConnectionMadeNoQOCInfo')
SUBSCRIPTION_REACH_NOQOC2 = ('{d4d8097a-60c6-440d-a6da-918b619ae4b7}',
'UbuntuOne Network Reach No Info 2',
'ConnectionMadeNoQOCInfo')
SUBSCRIPTIONS = [SUBSCRIPTION_NETALIVE,
SUBSCRIPTION_NETALIVE_NOQOC,
SUBSCRIPTION_NETLOST,
SUBSCRIPTION_REACH,
SUBSCRIPTION_REACH_NOQOC,
SUBSCRIPTION_REACH_NOQOC2]
SENSGUID_EVENTCLASS_NETWORK = '{d5978620-5b9f-11d1-8dd2-00aa004abd5e}'
SENSGUID_PUBLISHER = "{5fee1bd6-5b9b-11d1-8dd2-00aa004abd5e}"
# uuid of the implemented com interface
IID_ISesNetwork = '{d597bab1-5b9f-11d1-8dd2-00aa004abd5e}'
class NetworkManager(DesignatedWrapPolicy):
"""Implement ISesNetwork to know about the network status."""
_com_interfaces_ = [IID_ISesNetwork]
_public_methods_ = ['ConnectionMade',
'ConnectionMadeNoQOCInfo',
'ConnectionLost']
_reg_clsid_ = '{41B032DA-86B5-4907-A7F7-958E59333010}'
_reg_progid_ = "UbuntuOne.NetworkManager"
def __init__(self, connected_cb=None, connected_cb_info=None,
disconnected_cb=None):
# pylint: disable=E1101,E1120,W0231
self._wrap_(self)
# pylint: enable=E1101,E1120
self.connected_cb = connected_cb
self.connected_cb_info = connected_cb_info
self.disconnected_cb = disconnected_cb
def ConnectionMade(self, *args):
"""Tell that the connection is up again."""
logger.info('Connection was made.')
if self.connected_cb_info:
self.connected_cb_info()
def ConnectionMadeNoQOCInfo(self, *args):
"""Tell that the connection is up again."""
logger.info('Connection was made no info.')
if self.connected_cb:
self.connected_cb()
def ConnectionLost(self, *args):
"""Tell the connection was lost."""
logger.info('Connection was lost.')
if self.disconnected_cb:
self.disconnected_cb()
def register(self):
"""Register to listen to network events."""
# call the CoInitialize to allow the registration to run in another
# thread
# pylint: disable=E1101
pythoncom.CoInitialize()
# interface to be used by com
manager_interface = pythoncom.WrapObject(self)
event_system = Dispatch(PROGID_EventSystem)
# register to listen to each of the events to make sure that
# the code will work on all platforms.
for current_event in SUBSCRIPTIONS:
# create an event subscription and add it to the event
# service
event_subscription = Dispatch(PROGID_EventSubscription)
event_subscription.EventClassId = SENSGUID_EVENTCLASS_NETWORK
event_subscription.PublisherID = SENSGUID_PUBLISHER
event_subscription.SubscriptionID = current_event[0]
event_subscription.SubscriptionName = current_event[1]
event_subscription.MethodName = current_event[2]
event_subscription.SubscriberInterface = manager_interface
event_subscription.PerUser = True
# store the event
try:
event_system.Store(PROGID_EventSubscription,
event_subscription)
except pythoncom.com_error as e:
logger.error(
'Error registering %s to event %s', e, current_event[1])
pythoncom.PumpMessages()
# pylint: enable=E1101
def is_machine_connected():
"""Return a deferred that when fired, returns if the machine is online."""
# pylint: disable=W0703, W0702
try:
wininet = windll.wininet
flags = DWORD()
connected = wininet.InternetGetConnectedState(byref(flags), None)
return defer.succeed(connected == 1)
except Exception as e:
logger.exception('is_machine_connected failed with:')
return defer.fail(NetworkFailException(e))
# pylint: enable=W0703, W0702
class NetworkManagerState(object):
"""Check for status changed in the network on Windows."""
def __init__(self, result_cb, **kwargs):
"""Initialize this instance with a result and error callbacks."""
self.result_cb = result_cb
def connection_made(self):
"""Return the connection state over the call back."""
self.result_cb(ONLINE)
def connection_lost(self):
"""Return the connection was lost over the call back."""
self.result_cb(OFFLINE)
def find_online_state(self, listener=None, listener_thread=None):
"""Get the network state and return it thru the set callback."""
# check the current status right now
if is_machine_connected():
self.result_cb(ONLINE)
else:
self.result_cb(OFFLINE)
if listener is None:
# start listening for network changes
listener = NetworkManager(connected_cb=self.connection_made,
disconnected_cb=self.connection_lost)
if listener_thread is None:
listener_thread = Thread(target=listener.register,
name='Ubuntu SSO NetworkManager')
listener_thread.daemon = True
listener_thread.start()
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