def open_session(connection: DBusConnection) -> Session:
"""Returns a new Secret Service session."""
service = DBusAddressWrapper(SS_PATH, SERVICE_IFACE, connection)
session = Session()
try:
output, result = service.call(
'OpenSession', 'sv', ALGORITHM_DH,
('ay', int_to_bytes(session.my_public_key)))
except DBusErrorResponse as resp:
if resp.name != DBUS_NOT_SUPPORTED:
raise
output, result = service.call('OpenSession', 'sv', ALGORITHM_PLAIN,
('s', ''))
session.encrypted = False
else:
signature, value = output
assert signature == 'ay'
key = int.from_bytes(value, 'big')
session.set_server_public_key(key)
session.object_path = result
return session
def open_session(bus):
"""Returns a new Secret Service session."""
service_obj = bus_get_object(bus, SS_PATH)
service_iface = dbus.Interface(service_obj, SS_PREFIX + 'Service')
session = Session()
try:
output, result = service_iface.OpenSession(
ALGORITHM_DH,
dbus.ByteArray(int_to_bytes(session.my_public_key)),
signature='sv')
except dbus.exceptions.DBusException as e:
if e.get_dbus_name() != DBUS_NOT_SUPPORTED:
raise
output, result = service_iface.OpenSession(ALGORITHM_PLAIN,
'',
signature='sv')
session.encrypted = False
else:
output = int_from_bytes(bytearray(output), 'big')
session.set_server_public_key(output)
session.object_path = result
return session
def test_int_to_bytes(self) -> None: self.assertEqual(int_to_bytes(1), b'\x01') self.assertEqual(int_to_bytes(258), b'\x01\x02') self.assertEqual(int_to_bytes(1 << 64), b'\x01' + b'\x00' * 8)