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74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
# Copyright 2014 - 2019 Patrick Ulbrich <zulu99@gmx.net>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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import os
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import dbus
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from enum import Enum
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PING_TEST_HOST = 'www.google.com'
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NM_STATE_CONNECTED_GLOBAL = 70
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NM_PATH = '/org/freedesktop/NetworkManager'
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NM_NAME = 'org.freedesktop.NetworkManager'
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DBUS_PROPS_NAME = 'org.freedesktop.DBus.Properties'
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# TODO: Add GLib connection mode if GLib > 2.42 is available
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# (wrap GNetworkmonitor.get_connectivity() into a try/except block)
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class TestModes(Enum):
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AUTO = 0
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NETWORKMANAGER = 1
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PING = 2
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class ConnectivityTest:
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def __init__(self, testmode):
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self._testmode = testmode
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self._nm_is_offline = True
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bus = dbus.SystemBus()
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if self._testmode == TestModes.AUTO:
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if bus.name_has_owner(NM_NAME):
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self._testmode = TestModes.NETWORKMANAGER
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else:
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self._testmode = TestModes.PING
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if self._testmode == TestModes.NETWORKMANAGER:
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def state_changed_handler(state):
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self._nm_is_offline = (state != NM_STATE_CONNECTED_GLOBAL)
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proxy = bus.get_object(NM_NAME, NM_PATH)
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# Note: connect requires DBusGMainLoop(set_as_default = True)
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# and a running main loop.
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proxy.connect_to_signal('StateChanged', state_changed_handler)
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iface = dbus.Interface(proxy, DBUS_PROPS_NAME)
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state = iface.Get(NM_NAME, 'State')
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self._nm_is_offline = (state != NM_STATE_CONNECTED_GLOBAL)
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def is_offline(self):
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if self._testmode == TestModes.NETWORKMANAGER:
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return self._nm_is_offline
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else:
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return (os.system('ping -c1 -W2 %s > /dev/null 2>&1' % PING_TEST_HOST) != 0)
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