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
|
# -*- coding:utf-8 -*-
## src/common/dbus_support.py
##
## Copyright (C) 2005 Andrew Sayman <lorien420 AT myrealbox.com>
## Dimitur Kirov <dkirov AT gmail.com>
## Copyright (C) 2005-2006 Nikos Kouremenos <kourem AT gmail.com>
## Copyright (C) 2005-2007 Yann Leboulanger <asterix AT lagaule.org>
## Copyright (C) 2006 Jean-Marie Traissard <jim AT lapin.org>
## Stefan Bethge <stefan AT lanpartei.de>
## Copyright (C) 2008 Jonathan Schleifer <js-gajim AT webkeks.org>
##
## This file is part of Gajim.
##
## Gajim is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published
## by the Free Software Foundation; version 3 only.
##
## Gajim is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
##
import os, sys
from common import gajim
from common import exceptions
_GAJIM_ERROR_IFACE = 'org.gajim.dbus.Error'
try:
import dbus
import dbus.glib
except ImportError:
supported = False
if not os.name == 'nt': # only say that to non Windows users
print _('D-Bus python bindings are missing in this computer')
print _('D-Bus capabilities of Gajim cannot be used')
else:
try:
# test if dbus-x11 is installed
bus = dbus.SessionBus()
supported = True # does user have D-Bus bindings?
except dbus.DBusException:
supported = False
if not os.name == 'nt': # only say that to non Windows users
print _('D-Bus does not run correctly on this machine')
print _('D-Bus capabilities of Gajim cannot be used')
class SystemBus:
"""
A Singleton for the DBus SystemBus
"""
def __init__(self):
self.system_bus = None
def SystemBus(self):
if not supported:
raise exceptions.DbusNotSupported
if not self.present():
raise exceptions.SystemBusNotPresent
return self.system_bus
def bus(self):
return self.SystemBus()
def present(self):
if not supported:
return False
if self.system_bus is None:
try:
self.system_bus = dbus.SystemBus()
except dbus.DBusException:
self.system_bus = None
return False
if self.system_bus is None:
return False
# Don't exit Gajim when dbus is stopped
self.system_bus.set_exit_on_disconnect(False)
return True
system_bus = SystemBus()
class SessionBus:
"""
A Singleton for the D-Bus SessionBus
"""
def __init__(self):
self.session_bus = None
def SessionBus(self):
if not supported:
raise exceptions.DbusNotSupported
if not self.present():
raise exceptions.SessionBusNotPresent
return self.session_bus
def bus(self):
return self.SessionBus()
def present(self):
if not supported:
return False
if self.session_bus is None:
try:
self.session_bus = dbus.SessionBus()
except dbus.DBusException:
self.session_bus = None
return False
if self.session_bus is None:
return False
return True
session_bus = SessionBus()
def get_interface(interface, path, start_service=True):
"""
Get an interface on the current SessionBus. If the interface isn't running,
try to start it first
"""
if not supported:
return None
if session_bus.present():
bus = session_bus.SessionBus()
else:
return None
try:
obj = bus.get_object('org.freedesktop.DBus', '/org/freedesktop/DBus')
dbus_iface = dbus.Interface(obj, 'org.freedesktop.DBus')
running_services = dbus_iface.ListNames()
started = True
if interface not in running_services:
# try to start the service
if start_service and dbus_iface.StartServiceByName(interface, dbus.UInt32(0)) == 1:
started = True
else:
started = False
if not started:
return None
obj = bus.get_object(interface, path)
return dbus.Interface(obj, interface)
except Exception, e:
gajim.log.debug(str(e))
return None
def get_notifications_interface(notif=None):
"""
Get the notifications interface
:param notif: DesktopNotification instance
"""
# try to see if KDE notifications are available
iface = get_interface('org.kde.VisualNotifications', '/VisualNotifications',
start_service=False)
if iface != None:
if notif != None:
notif.kde_notifications = True
return iface
# KDE notifications don't seem to be available, falling back to
# notification-daemon
else:
if notif != None:
notif.kde_notifications = False
return get_interface('org.freedesktop.Notifications',
'/org/freedesktop/Notifications')
if supported:
class MissingArgument(dbus.DBusException):
_dbus_error_name = _GAJIM_ERROR_IFACE + '.MissingArgument'
class InvalidArgument(dbus.DBusException):
'''Raised when one of the provided arguments is invalid.'''
_dbus_error_name = _GAJIM_ERROR_IFACE + '.InvalidArgument'
# vim: se ts=3:
|