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120 lines
4.1 KiB
Python
120 lines
4.1 KiB
Python
# This should eventually land in telepathy-python, so has the same license:
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# Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/>
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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 Lesser General Public License as published
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# by the Free Software Foundation; either version 2.1 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 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 License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""
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STABLE.
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"""
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__all__ = ('TubeConnection', )
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__docformat__ = 'reStructuredText'
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import six
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import logging
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from dbus.connection import Connection
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logger = logging.getLogger('telepathy.tubeconn')
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class TubeConnection(Connection):
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def __new__(cls, conn, tubes_iface, tube_id, address=None,
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group_iface=None, mainloop=None):
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# pylint: disable=W0212
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# Confused by __new__
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if address is None:
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address = tubes_iface.GetDBusTubeAddress(tube_id)
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self = super(TubeConnection, cls).__new__(cls, address,
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mainloop=mainloop)
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self._tubes_iface = tubes_iface
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self.tube_id = tube_id
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self.participants = {}
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self.bus_name_to_handle = {}
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self._mapping_watches = []
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if group_iface is None:
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method = conn.GetSelfHandle
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else:
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method = group_iface.GetSelfHandle
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method(reply_handler=self._on_get_self_handle_reply,
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error_handler=self._on_get_self_handle_error)
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return self
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def _on_get_self_handle_reply(self, handle):
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# pylint: disable=W0201
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# Confused by __new__
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self.self_handle = handle
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match = self._tubes_iface.connect_to_signal(
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'DBusNamesChanged',
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self._on_dbus_names_changed)
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self._tubes_iface.GetDBusNames(
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self.tube_id,
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reply_handler=self._on_get_dbus_names_reply,
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error_handler=self._on_get_dbus_names_error)
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self._dbus_names_changed_match = match
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def _on_get_self_handle_error(self, e):
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logging.basicConfig()
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logger.error('GetSelfHandle failed: %s', e)
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def close(self):
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self._dbus_names_changed_match.remove()
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self._on_dbus_names_changed(
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self.tube_id, (), list(
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self.participants.keys()))
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super(TubeConnection, self).close()
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def _on_get_dbus_names_reply(self, names):
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self._on_dbus_names_changed(self.tube_id, names, ())
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def _on_get_dbus_names_error(self, e):
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logging.basicConfig()
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logger.error('GetDBusNames failed: %s', e)
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def _on_dbus_names_changed(self, tube_id, added, removed):
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if tube_id == self.tube_id:
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for handle, bus_name in added:
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if handle == self.self_handle:
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# I've just joined - set my unique name
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self.set_unique_name(bus_name)
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self.participants[handle] = bus_name
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self.bus_name_to_handle[bus_name] = handle
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# call the callback while the removed people are still in
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# participants, so their bus names are available
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for callback in self._mapping_watches:
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callback(added, removed)
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for handle in removed:
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bus_name = self.participants.pop(handle, None)
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self.bus_name_to_handle.pop(bus_name, None)
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def watch_participants(self, callback):
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self._mapping_watches.append(callback)
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if self.participants:
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# GetDBusNames already returned: fake a participant add event
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# immediately
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added = []
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for k, v in six.iteritems(self.participants):
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added.append((k, v))
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callback(added, [])
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