1 from __future__ import with_statement
5 from dbuscron.logger import Logger
8 def dbus_to_str(value):
10 if isinstance(value, dbus.Byte):
11 result = str(int(value))
12 elif isinstance(value, dbus.ByteArray):
13 result = ','.join(str(ord(v)) for v in value)
14 elif isinstance(value, dbus.Array):
15 result = ','.join(dbus_to_str(v) for v in value)
16 elif isinstance(value, dbus.Dictionary):
17 result = ','.join('%s:%s' % (k, dbus_to_str(v)) for k, v in value.iteritems())
18 elif isinstance(value, dbus.String):
19 result = value.encode('utf-8')
24 log.error('convert exception', e)
28 def get_dbus_message_type(message):
29 result = message.__class__.__name__[0:-7]
30 for c in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
31 result = result.replace(c, '_'+c.lower())
32 return result.strip('_')
34 class DbusBus(object):
41 cls.__bus = super(DbusBus, cls).__new__(cls)
45 self.get_session_bus_address()
46 from dbus.mainloop.glib import DBusGMainLoop
47 DBusGMainLoop(set_as_default=True)
49 def get_session_bus_address(self):
51 return os.environ['DBUS_SESSION_BUS_ADDRESS']
53 with open('/tmp/session_bus_address.user', 'rb') as f:
54 session_bus_address = f.readline().strip().split('=', 1).pop().strip("'\"")
55 os.environ['DBUS_SESSION_BUS_ADDRESS'] = session_bus_address
56 log('session bus address aquired', session_bus_address)
57 return session_bus_address
61 if not self.__system_bus:
62 self.__system_bus = dbus.SystemBus()
63 return self.__system_bus
67 if not self.__session_bus:
68 self.__session_bus = dbus.SessionBus()
69 return self.__session_bus
71 def attach_handler(self, handler):
73 self.__system_bus.add_message_filter(handler)
74 if self.__session_bus:
75 self.__session_bus.add_message_filter(handler)
77 from gobject import MainLoop
81 class DbusRule(object):
82 def __init__(self, bus_=None, type_=None, sender_=None, interface_=None, path_=None, member_=None, destination_=None, args_=[]):
85 self._sender = sender_
86 self._interface = interface_
88 self._member = member_
89 self._destination = destination_
95 self._bus.add_match_string(rule)
100 self._bus.remove_match_string(rule)
107 for key in ['type', 'sender', 'interface', 'path', 'member', 'destination']:
108 value = getattr(self, '_'+key)
109 if value is not None:
110 rule.append("%s='%s'" % (key, value))
113 for i, arg in enumerate(self._args):
114 rule.append("arg%d%s='%s'" % (i, 'path' if arg.startswith('/') else '', arg))
116 return ','.join(rule)
118 def match(self, bus, message):
120 if self._bus not in (None, bus):
123 if self._type is not None:
124 type_ = get_dbus_message_type(message)
125 if self._type != type_:
128 if self._sender not in (None, message.get_sender()):
131 if self._interface not in (None, message.get_interface()):
134 if self._path not in (None, message.get_path()):
137 if self._member not in (None, message.get_member()):
140 if self._destination not in (None, message.get_destination()):
143 if self._args is not None:
144 args_ = message.get_args_list()
145 for i, arg in enumerate(args_):
146 if i >= len(self._args):
148 if self._args[i] not in (None, str(arg)):