def mqtt_message(self, topic, msg):
# try to find a device by matching known FullTopics against the MQTT topic of the message
device = self.env.find_device(topic)
if device:
if topic.endswith("LWT"):
if not msg:
msg = "Offline"
device.update_property("LWT", msg)
if msg == 'Online':
# known device came online, query initial state
self.initial_query(device, True)
else:
# forward the message for processing
device.parse_message(topic, msg)
if device.debug:
logging.debug("MQTT: %s %s", topic, msg)
else: # unknown device, start autodiscovery process
if topic.endswith("LWT"):
self.env.lwts.append(topic)
logging.info("DISCOVERY: LWT from an unknown device %s", topic)
# STAGE 1
# load default and user-provided FullTopic patterns and for all the patterns,
# try matching the LWT topic (it follows the device's FullTopic syntax
for p in default_patterns + custom_patterns:
match = re.fullmatch(
p.replace("%topic%", "(?P<topic>.*?)").replace(
"%prefix%", "(?P<prefix>.*?)") + ".*$", topic)
if match:
# assume that the matched topic is the one configured in device settings
possible_topic = match.groupdict().get('topic')
if possible_topic not in ('tele', 'stat'):
# if the assumed topic is different from tele or stat, there is a chance that it's a valid topic
# query the assumed device for its FullTopic. False positives won't reply.
possible_topic_cmnd = p.replace(
"%prefix%", "cmnd").replace(
"%topic%", possible_topic) + "FullTopic"
logging.debug(
"DISCOVERY: Asking an unknown device for FullTopic at %s",
possible_topic_cmnd)
self.mqtt_queue.append([possible_topic_cmnd, ""])
elif topic.endswith("RESULT") or topic.endswith(
"FULLTOPIC"): # reply from an unknown device
# STAGE 2
full_topic = loads(msg).get('FullTopic')
if full_topic:
# the device replies with its FullTopic
# here the Topic is extracted using the returned FullTopic, identifying the device
parsed = parse_topic(full_topic, topic)
if parsed:
# got a match, we query the device's MAC address in case it's a known device that had its topic changed
logging.debug(
"DISCOVERY: topic %s is matched by fulltopic %s",
topic, full_topic)
d = self.env.find_device(topic=parsed['topic'])
if d:
d.update_property("FullTopic", full_topic)
else:
logging.info(
"DISCOVERY: Discovered topic=%s with fulltopic=%s",
parsed['topic'], full_topic)
d = TasmotaDevice(parsed['topic'], full_topic)
self.env.devices.append(d)
self.device_model.addDevice(d)
logging.debug(
"DISCOVERY: Sending initial query to topic %s",
parsed['topic'])
self.initial_query(d, True)
self.env.lwts.remove(d.tele_topic("LWT"))
d.update_property("LWT", "Online")
def mqtt_message(self, topic, msg):
# try to find a device by matching known FullTopics against the MQTT topic of the message
device = self.env.find_device(topic)
if device:
if topic.endswith("LWT"):
if not msg:
msg = "Offline"
device.update_property("LWT", msg)
if msg == 'Online':
# known device came online, query initial state
self.initial_query(device, True)
else:
# forward the message for processing
device.parse_message(topic, msg)
else: # unknown device, start autodiscovery process
if topic.endswith("LWT"):
# STAGE 1
# load default and user-provided FullTopic patterns and for all the patterns,
# try matching the LWT topic (it follows the device's FullTopic syntax
for p in default_patterns + custom_patterns:
match = re.fullmatch(
p.replace("%topic%", "(?P<topic>.*?)").replace(
"%prefix%", "(?P<prefix>.*?)") + ".*$", topic)
if match:
# assume that the matched topic is the one configured in device settings
possible_topic = match.groupdict().get('topic')
if possible_topic not in ('tele', 'stat'):
# if the assumed topic is different from tele or stat, there is a chance that it's a valid topic
# query the assumed device for its FullTopic. False positives won't reply.
self.mqtt_queue.append([
p.replace("%prefix%", "cmnd").replace(
"%topic%", possible_topic) + "FullTopic",
""
])
elif topic.endswith("RESULT"): # reply from an unknown device
# STAGE 2
try:
full_topic = loads(msg).get('FullTopic')
if full_topic:
# the device replies with its FullTopic
# here the Topic is extracted using the returned FullTopic, identifying the device
parsed = parse_topic(full_topic, topic)
if parsed:
# got a match, we query the device's MAC address in case it's a known device that had its topic changed
d = self.env.find_device(topic=parsed['topic'])
if d:
d.update_property("FullTopic", full_topic)
else:
print("DISCOVERED", parsed['topic'])
d = TasmotaDevice(parsed['topic'], full_topic)
self.env.devices.append(d)
self.device_model.addDevice(d)
self.initial_query(d, True)
d.update_property("LWT", "Online")
except JSONDecodeError as e:
with open("{}/TDM/error.log".format(QDir.homePath()),
"a+") as l:
l.write("{}\t{}\t{}\t{}\n".format(
QDateTime.currentDateTime().toString(
"yyyy-MM-dd hh:mm:ss"), topic, msg, e.msg))