def _initsession(self,
uri=None,
cleansession=None,
cafile=None,
capath=None,
cadata=None) -> Session:
# Load config
broker_conf = self.config.get('broker', dict()).copy()
if uri:
broker_conf['uri'] = uri
if cafile:
broker_conf['cafile'] = cafile
elif 'cafile' not in broker_conf:
broker_conf['cafile'] = None
if capath:
broker_conf['capath'] = capath
elif 'capath' not in broker_conf:
broker_conf['capath'] = None
if cadata:
broker_conf['cadata'] = cadata
elif 'cadata' not in broker_conf:
broker_conf['cadata'] = None
if cleansession is not None:
broker_conf['cleansession'] = cleansession
for key in ['uri']:
if not_in_dict_or_none(broker_conf, key):
raise ClientException("Missing connection parameter '%s'" %
key)
s = Session(self.plugins_manager)
s.broker_uri = broker_conf['uri']
s.client_id = self.client_id
s.cafile = broker_conf['cafile']
s.capath = broker_conf['capath']
s.cadata = broker_conf['cadata']
if cleansession is not None:
s.clean_session = cleansession
else:
s.clean_session = self.config.get('cleansession', True)
s.keep_alive = self.config['keep_alive'] - self.config['ping_delay']
if 'will' in self.config:
s.will_flag = True
s.will_retain = self.config['will']['retain']
s.will_topic = self.config['will']['topic']
s.will_message = self.config['will']['message']
s.will_qos = self.config['will']['qos']
else:
s.will_flag = False
s.will_retain = False
s.will_topic = None
s.will_message = None
return s
def _initsession(self,
uri=None,
cleansession=None,
cafile=None,
capath=None,
cadata=None) -> Session:
# Load config
broker_conf = self.config.get("broker", dict()).copy()
if uri:
broker_conf["uri"] = uri
if cafile:
broker_conf["cafile"] = cafile
elif "cafile" not in broker_conf:
broker_conf["cafile"] = None
if capath:
broker_conf["capath"] = capath
elif "capath" not in broker_conf:
broker_conf["capath"] = None
if cadata:
broker_conf["cadata"] = cadata
elif "cadata" not in broker_conf:
broker_conf["cadata"] = None
if cleansession is not None:
broker_conf["cleansession"] = cleansession
for key in ["uri"]:
if broker_conf.get(key, None) is None:
raise ClientException("Missing connection parameter '%s'" %
key)
s = Session(self.plugins_manager)
s.broker_uri = broker_conf["uri"]
s.client_id = self.client_id
s.cafile = broker_conf["cafile"]
s.capath = broker_conf["capath"]
s.cadata = broker_conf["cadata"]
if cleansession is not None:
s.clean_session = cleansession
else:
s.clean_session = self.config.get("cleansession", True)
s.keep_alive = self.config["keep_alive"] - self.config["ping_delay"]
if "will" in self.config:
s.will_flag = True
s.will_retain = self.config["will"]["retain"]
s.will_topic = self.config["will"]["topic"]
s.will_message = self.config["will"]["message"]
s.will_qos = self.config["will"]["qos"]
else:
s.will_flag = False
s.will_retain = False
s.will_topic = None
s.will_message = None
return s
async def init_from_connect(cls, stream: StreamAdapter, plugins_manager):
"""
:param stream:
:param plugins_manager:
:return:
"""
remote_address, remote_port = stream.get_peer_info()
try:
connect = await ConnectPacket.from_stream(stream)
except NoDataException:
raise MQTTException("Client closed the connection")
logger.debug("< B %r", connect)
await plugins_manager.fire_event(EVENT_MQTT_PACKET_RECEIVED,
packet=connect)
# this shouldn't be required anymore since broker generates for each client a random client_id if not provided
# [MQTT-3.1.3-6]
if connect.payload.client_id is None:
raise MQTTException(
"[[MQTT-3.1.3-3]] : Client identifier must be present")
if connect.variable_header.will_flag:
if connect.payload.will_topic is None or connect.payload.will_message is None:
raise MQTTException(
"will flag set, but will topic/message not present in payload"
)
if connect.variable_header.reserved_flag:
raise MQTTException(
"[MQTT-3.1.2-3] CONNECT reserved flag must be set to 0")
if connect.proto_name != "MQTT":
raise MQTTException(
'[MQTT-3.1.2-1] Incorrect protocol name: "%s"' %
connect.proto_name)
connack = None
error_msg = None
if connect.proto_level != 4:
# only MQTT 3.1.1 supported
error_msg = "Invalid protocol from %s: %d" % (
format_client_message(address=remote_address,
port=remote_port),
connect.proto_level,
)
connack = ConnackPacket.build(0, UNACCEPTABLE_PROTOCOL_VERSION
) # [MQTT-3.2.2-4] session_parent=0
elif not connect.username_flag and connect.password_flag:
connack = ConnackPacket.build(
0, BAD_USERNAME_PASSWORD) # [MQTT-3.1.2-22]
elif connect.username_flag and not connect.password_flag:
connack = ConnackPacket.build(
0, BAD_USERNAME_PASSWORD) # [MQTT-3.1.2-22]
elif connect.username_flag and connect.username is None:
error_msg = "Invalid username from %s" % (format_client_message(
address=remote_address, port=remote_port))
connack = ConnackPacket.build(
0, BAD_USERNAME_PASSWORD) # [MQTT-3.2.2-4] session_parent=0
elif connect.password_flag and connect.password is None:
error_msg = "Invalid password %s" % (format_client_message(
address=remote_address, port=remote_port))
connack = ConnackPacket.build(
0, BAD_USERNAME_PASSWORD) # [MQTT-3.2.2-4] session_parent=0
elif connect.clean_session_flag is False and (
connect.payload.client_id_is_random):
error_msg = (
"[MQTT-3.1.3-8] [MQTT-3.1.3-9] %s: No client Id provided (cleansession=0)"
% (format_client_message(address=remote_address,
port=remote_port)))
connack = ConnackPacket.build(0, IDENTIFIER_REJECTED)
if connack is not None:
logger.debug("B > %r", connack)
await plugins_manager.fire_event(EVENT_MQTT_PACKET_SENT,
packet=connack)
await connack.to_stream(stream)
await stream.close()
raise MQTTException(error_msg)
incoming_session = Session(plugins_manager)
incoming_session.client_id = connect.client_id
incoming_session.clean_session = connect.clean_session_flag
incoming_session.will_flag = connect.will_flag
incoming_session.will_retain = connect.will_retain_flag
incoming_session.will_qos = connect.will_qos
incoming_session.will_topic = connect.will_topic
incoming_session.will_message = connect.will_message
incoming_session.username = connect.username
incoming_session.password = connect.password
if connect.keep_alive > 0:
incoming_session.keep_alive = connect.keep_alive
else:
incoming_session.keep_alive = 0
handler = cls(plugins_manager)
return handler, incoming_session