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126 lines
5.0 KiB
Python
126 lines
5.0 KiB
Python
# Copyright (C) 2010 Collabora Ltd. <http://www.collabora.co.uk/>
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library 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 GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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"""
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UNSTABLE. It should really be internal to the sugar3.presence package.
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"""
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from functools import partial
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import dbus
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from dbus import PROPERTIES_IFACE
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from telepathy.interfaces import ACCOUNT, \
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ACCOUNT_MANAGER
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from telepathy.constants import CONNECTION_STATUS_CONNECTED
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ACCOUNT_MANAGER_SERVICE = 'org.freedesktop.Telepathy.AccountManager'
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ACCOUNT_MANAGER_PATH = '/org/freedesktop/Telepathy/AccountManager'
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class Connection(object):
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def __init__(self, account_path, connection):
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self.account_path = account_path
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self.connection = connection
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self.connected = False
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class ConnectionManager(object):
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"""Track available telepathy connections"""
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def __init__(self):
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self._connections_per_account = {}
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bus = dbus.SessionBus()
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obj = bus.get_object(ACCOUNT_MANAGER_SERVICE, ACCOUNT_MANAGER_PATH)
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account_manager = dbus.Interface(obj, ACCOUNT_MANAGER)
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account_paths = account_manager.Get(ACCOUNT_MANAGER, 'ValidAccounts',
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dbus_interface=PROPERTIES_IFACE)
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for account_path in account_paths:
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obj = bus.get_object(ACCOUNT_MANAGER_SERVICE, account_path)
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obj.connect_to_signal('AccountPropertyChanged',
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partial(self.__account_property_changed_cb,
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account_path))
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connection_path = obj.Get(ACCOUNT, 'Connection')
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if connection_path != '/':
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self._track_connection(account_path, connection_path)
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def __account_property_changed_cb(self, account_path, properties):
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if 'Connection' not in properties:
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return
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if properties['Connection'] == '/':
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if account_path in self._connections_per_account:
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del self._connections_per_account[account_path]
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else:
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self._track_connection(account_path, properties['Connection'])
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def _track_connection(self, account_path, connection_path):
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connection_name = connection_path.replace('/', '.')[1:]
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bus = dbus.SessionBus()
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connection = bus.get_object(connection_name, connection_path)
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connection.connect_to_signal('StatusChanged',
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partial(self.__status_changed_cb,
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account_path))
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self._connections_per_account[account_path] = \
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Connection(account_path, connection)
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account = bus.get_object(ACCOUNT_MANAGER_SERVICE, account_path)
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status = account.Get(ACCOUNT, 'ConnectionStatus')
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if status == CONNECTION_STATUS_CONNECTED:
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self._connections_per_account[account_path].connected = True
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else:
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self._connections_per_account[account_path].connected = False
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def __status_changed_cb(self, account_path, status, reason):
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if status == CONNECTION_STATUS_CONNECTED:
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self._connections_per_account[account_path].connected = True
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else:
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self._connections_per_account[account_path].connected = False
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def get_preferred_connection(self):
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best_connection = None, None
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for account_path, connection in list(
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self._connections_per_account.items()):
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if 'salut' in account_path and connection.connected:
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best_connection = account_path, connection.connection
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elif 'gabble' in account_path and connection.connected:
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best_connection = account_path, connection.connection
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break
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return best_connection
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def get_connection(self, account_path):
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return self._connections_per_account[account_path].connection
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def get_connections_per_account(self):
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return self._connections_per_account
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def get_account_for_connection(self, connection_path):
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for account_path, connection in list(
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self._connections_per_account.items()):
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if connection.connection.object_path == connection_path:
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return account_path
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return None
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_connection_manager = None
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def get_connection_manager():
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global _connection_manager
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if not _connection_manager:
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_connection_manager = ConnectionManager()
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return _connection_manager
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