def _connect_to_problems_bus(self):
# I can't find any description of raised exceptions
self._bus = dbus.SystemBus(private=True, mainloop=self._mainloop)
try:
self._proxy = self._bus.get_object(BUS_NAME, BUS_PATH)
except dbus.exceptions.DBusException as ex:
raise errors.UnavailableSource(
self, False,
_("Can't connect to DBus system bus '{0}' path '{1}': {2}").
format(BUS_NAME, BUS_PATH, ex))
try:
self._interface = dbus.Interface(self._proxy, BUS_IFACE)
except dbus.exceptions.DBusException as ex:
raise errors.UnavailableSource(
self, False,
_("Can't get interface '{0}' on path '{1}' in bus '{2}': {3}").
format(BUS_IFACE, BUS_PATH, BUS_NAME, ex))
def on_dbus_exception(self, problem_id, ex):
"""If the authentication fails, a foreign problems source become
temporary unavailable because we expect that the failure was caused by
dismissing of the authentication dialog and all problems provided by
this kind of source require authentication (none of them is available
now). So, it means that a view can try to query the temporary
unavailable source later.
"""
if ex.get_dbus_name() == "org.freedesktop.problems.AuthFailure":
logging.debug("User dismissed D-Bus authentication")
raise errors.UnavailableSource(self._source, True)
if ex.get_dbus_name() == "org.freedesktop.problems.InvalidProblemDir":
self._source._remove_from_cache(problem_id)
raise errors.InvalidProblem(problem_id, ex)