def __reconnect(self):
"""
Tries to connect to the MQTT server
"""
# Cancel the timer, if any
self.__stop_timer()
try:
# Try to reconnect the server
result_code = self.__mqtt.reconnect()
if result_code:
# Something wrong happened
message = "Error connecting the MQTT server: {0} ({1})" \
.format(result_code, paho.error_string(result_code))
_logger.error(message)
raise ValueError(message)
except Exception as ex:
# Something went wrong: log it
_logger.error("Exception connecting server: %s", ex)
finally:
# Prepare a reconnection timer. It will be cancelled by the
# on_connect callback
self.__start_timer(10)
def send(self, val):
ts = val['ts'];
comp = val['name'];
data = str(val['val']);
topic = "server/metric/%s/%s" % (self._accountID, self._deviceID);
packet = {
'accountId': self._accountID,
'did': self._deviceID,
'on': ts,
'count': 1,
'data': [{'on': ts, 'value': data, 'cid': comp}]
};
pr.Dbg("EnableIoT - MQTT: Sending packet to topic '%s': %s" % (str(topic), json.dumps(packet)));
(succ, mid) = self._mqtt.publish(topic, json.dumps(packet), qos=self._qos);
pr.Dbg("EnableIoT - MQTT: Published Message %d (Err: '%s')" % (mid, mqtt.error_string(succ)));
start = time.time();
while (time.time() < (start + self._messageTimeout)):
self._gotMessagesLock.acquire();
if (mid in self._gotMessages):
self._gotMessages.remove(mid);
self._gotMessagesLock.release();
pr.Dbg("EnableIoT - MQTT: Success!");
return True;
self._gotMessagesLock.release();
time.sleep(0.5);
pr.Dbg("EnableIoT - MQTT: Fail....");
return False;
def run(self):
self.client = mqtt.Client()
self.client.on_connect = self.on_connect
self.client.on_disconnect = self.on_disconnect
self.client.on_subscribe = self.on_subscribe
self.client.on_message = self.on_message
self.client.on_log = self.on_log
while not self.app.is_exit_signaled():
while not self.connected:
try:
self.client.connect(self.app.mqtt_broker, self.app.mqtt_port, 60)
self.connected = True
except:
self.app.log.error("Failed to connect to MQTT broker: %s:%s (rc=%d, %s)", self.app.mqtt_broker, self.app.mqtt_port, rc, mqtt.error_string(rc))
time.sleep(3)
rc = self.client.loop()
if rc != mqtt.MQTT_ERR_SUCCESS:
self.app.log.warning("MQTT loop returned code %d (%s)", rc, mqtt.error_string(rc))
if self.connected:
self.client.disconnect()
self.app.log.debug("MQTT thread stopped")
def _raise_on_error(result_code: int) -> None:
"""Raise error if error result."""
if result_code != 0:
import paho.mqtt.client as mqtt
raise HomeAssistantError(
'Error talking to MQTT: {}'.format(mqtt.error_string(result_code)))
def loop(self):
"""Run network activities.
This function needs to be called frequently to keep the network
traffic alive, if not using threaded networking.
It will block until a message is received, or until
the self.timeout value.
If not connected to the broker, it will try to connect once.
Do not use this function when running threaded networking.
"""
if self._use_threaded_networking:
self.logger.warning("You must should not use the loop() method when running a threaded networking interface.")
return
try:
errorcode = self.mqttclient.loop(self.timeout)
except AttributeError:
raise ValueError("You must call start() before loop().")
if not errorcode:
return
if errorcode == mqtt.MQTT_ERR_UNKNOWN:
self.logger.warning("Probably keyboard interrupt, quitting (MQTT error message: '{}')".format(
mqtt.error_string(errorcode)))
self.stop()
sys.exit()
if errorcode == mqtt.MQTT_ERR_CONN_LOST:
self.logger.info("MQTT connection error, trying to reconnect. Error message: '{}'".format(
mqtt.error_string(errorcode)))
elif errorcode in [mqtt.MQTT_ERR_NO_CONN, mqtt.MQTT_ERR_CONN_REFUSED]:
self.logger.warning("MQTT connection error, trying to reconnect. Error message: '{}'".format(
mqtt.error_string(errorcode)))
else:
self.logger.warning("MQTT error. Error message: '{}'".format(mqtt.error_string(errorcode)))
return
try:
self.mqttclient.reconnect()
except Exception:
self.logger.warning("Failed to connect to the MQTT broker. Host: {}, Port: {}".format(self.host, self.port))
self._set_broker_connectionstatus(False)
time.sleep(1)
def store_raw(self, message):
# TODO: Wrap in JSON packet
# Publish with QoS=2
# http://www.hivemq.com/blog/mqtt-essentials-part-6-mqtt-quality-of-service-levels
(result, mid) = self.mqtt_client.publish(topic=self.PUBLISH_TOPIC, payload=message, qos=self.QOS_LEVEL)
print "store(): %s" % error_string(result)
def publish(self, topic, payload, qos, retain):
try:
(rc, mid) = self._iot_mqtt_client_handler.publish(topic, payload, qos, retain)
except BaseException as e:
send_output(self.wrapper_debug, self.wrapper_Tx, "P F " + e.message)
return
send_output(self.wrapper_debug, self.wrapper_Tx, "P " + str(rc) + " " + mqtt.error_string(rc))
return rc
def on_connect(self, client, userdata, flags, rc):
print('on_connect: %s' % error_string(rc))
if rc != 0:
raise ByteportConnectException("Error while connecting to MQTT Broker: " + error_string(rc))
# Subscribing in on_connect() means that if we lose the connection and
# reconnect then subscriptions will be renewed.
self.mqtt_client.subscribe(self.self_topic_name, qos=self.QOS_LEVEL)
# For testing pub/subscribe via. RabbitMQ -> Exchange -> Queue
self.mqtt_client.subscribe(self.PUBLISH_TOPIC, qos=self.QOS_LEVEL)
def subscribe(self, topic, qos, ino_id):
try:
(rc, mid) = self._iot_mqtt_client_handler.subscribe(topic, qos)
if ino_id == None:
raise ValueError("None ino_id")
self.idMap_lock.acquire()
self.idMap.setdefault(topic, ino_id)
self.idMap_lock.release()
except BaseException as e:
send_output(self.wrapper_debug, self.wrapper_Tx, "S F " + e.message)
return
send_output(self.wrapper_debug, self.wrapper_Tx, "S " + str(rc) + " " + mqtt.error_string(rc))
return rc
def async_connect(self):
"""Connect to the host. Does not process messages yet.
This method must be run in the event loop and returns a coroutine.
"""
result = yield from self.hass.loop.run_in_executor(
None, self._mqttc.connect, self.broker, self.port, self.keepalive)
if result != 0:
import paho.mqtt.client as mqtt
_LOGGER.error('Failed to connect: %s', mqtt.error_string(result))
return not result
def __on_connect(self, client, userdata, flags, rc):
if rc == mqtt.CONNACK_ACCEPTED:
# connection successful
self.connected = True
for topic in self.subscriptions.keys():
(res, mid) = self.client.subscribe(topic)
self.log.debug("subscribing to '%s' => mid: '%s' == '%s'" % (topic, mid, res))
self.subscriptions[topic]['mid'] = mid
self.subscriptions[topic]['subscription_result'] = res
else:
msg = mqtt.error_string(rc)
self.log.error("MQTT connection error: %s" % msg)
self.__sender_id = None
def emit_record(topic, rec):
global client
if client== None:
client = get_connected_client()
p = 11
tries = 0
while p > 10:
p = 0
plock.acquire()
p = len(pending)
plock.release()
if p > 10:
tries += 1
if tries > 10:
LOG.info("restarting mqtt connection")
try:
if (client.connect(MQHOST, MQPORT, 60) != mqtt.MQTT_ERR_SUCCESS):
LOG.error("Failed to connect to MQTT server.")
return None
except ConnectionRefusedError:
LOG.error("MQTT server connection refused at {}:{} check the server.".format(MQHOST, MQPORT))
tries = 0
else:
LOG.info("wait for pending messages before queuing more [{}]".format(p))
time.sleep(1)
# make it serializable
d = rec['Datetime']
rec['Datetime'] = rec['Datetime'].isoformat()
result, mid = client.publish(topic,json.dumps(rec), qos=2)
if result != mqtt.MQTT_ERR_SUCCESS:
LOG.warn("MQTT publish failed with {}, restarting connection.".format(mqtt.error_string(result)))
try:
shutdown_client()
except:
pass
else:
LOG.info("emit [{}] to {}: {}".format(mid, topic, rec))
plock.acquire()
pending[mid] = datetime.datetime.now()
plock.release()
rec['Datetime'] = d
def subscribe(self, topic, qos, ino_id, is_delta):
try:
(rc, mid) = self._iot_mqtt_client_handler.subscribe(topic, qos)
if ino_id == None:
raise ValueError("None ino_id")
self.idMap_lock.acquire()
new_key = idMap_key(topic, None) # no clientToken since it is a normal sub
new_entry = idMap_info(ino_id, False, is_delta!=0) # This is not a ThingShadow-related topic
self.idMap[new_key] = new_entry
self.idMap_lock.release()
except BaseException as e:
send_output(self.wrapper_debug, self.wrapper_Tx, "S F " + e.message)
return
send_output(self.wrapper_debug, self.wrapper_Tx, "S " + str(rc) + " " + mqtt.error_string(rc))
return rc
def async_connect(self):
"""Connect to the host. Does process messages yet.
This method is a coroutine.
"""
result = yield from self.hass.async_add_job(
self._mqttc.connect, self.broker, self.port, self.keepalive)
if result != 0:
import paho.mqtt.client as mqtt
_LOGGER.error('Failed to connect: %s', mqtt.error_string(result))
else:
self._mqttc.loop_start()
return not result
def publish_file(file_name, file_path):
global mqtt_client
log.debug('publish_file({})'.format(file_path))
try:
with open(file_path) as fh:
file_contents = fh.read()
ret_obj = mqtt_client.publish(topic=file_name, payload=file_contents, qos=0)
if ret_obj.rc == mqtt.MQTT_ERR_SUCCESS:
log.debug('MQTT published file: {}'.format(file_path))
else:
log.warning('MQTT failed to publish file: {}'.format(file_path))
log.warning('MQTT failed to publish file. error: {}'.format(mqtt.error_string(ret_obj.rc)))
except Exception as ex:
log.error('Exception in publish_file(). ex: {}'.format(ex))
async def async_connect(self) -> bool:
"""Connect to the host. Does process messages yet.
This method is a coroutine.
"""
result = None # type: int
try:
result = await self.hass.async_add_job(
self._mqttc.connect, self.broker, self.port, self.keepalive)
except OSError as err:
_LOGGER.error("Failed to connect due to exception: %s", err)
return False
if result != 0:
import paho.mqtt.client as mqtt
_LOGGER.error("Failed to connect: %s", mqtt.error_string(result))
return False
self._mqttc.loop_start()
return True
def __on_connect(self, client, userdata, flags, rc):
if rc == mqtt.CONNACK_ACCEPTED:
# connection successful
self.log.info("%s: MQTT successfully connected" % self.get_identifier())
self._set_connected(True)
self.__retried = 0
for topic in self.subscriptions.keys():
(res, mid) = self.client.subscribe(topic)
self.log.debug("%s: subscribing to '%s' => mid: '%s' == '%s'" % (self.get_identifier(), topic, mid, res))
self.subscriptions[topic]['mid'] = mid
self.subscriptions[topic]['subscription_result'] = res
else:
self._set_connected(False)
self.__connection_error_counter += 1
if self.__connection_error_counter >= self.__switch_threshold:
self.switch_to_host(blacklist_current=True)
return
msg = mqtt.error_string(rc)
self.log.error("%s: MQTT connection error: %s" % (self.get_identifier(), msg))
self.__reconnect()
def __init__(self, namespace, device_uid, username, password,
broker_host=DEFAULT_BROKER_HOST, loop_forever=False, explicit_vhost=None):
self.namespace = str(namespace)
self.device_uid = device_uid
self.guid = '%s.%s' % (namespace, device_uid)
self.self_topic_name = self.guid
if explicit_vhost:
vhost = explicit_vhost
else:
vhost = namespace
if vhost:
username = '******' % (vhost, username)
self.mqtt_client = mqtt.Client(client_id=self.guid, clean_session=False, protocol=MQTTv311)
self.mqtt_client.username_pw_set(username, password)
self.mqtt_client.on_connect = self.on_connect
self.mqtt_client.on_message = self.on_message
print "Connecting to %s" % broker_host
rc = self.mqtt_client.connect(broker_host, 1883, 60)
print('connect(): %s' % error_string(rc))
# Blocking call that processes network traffic, dispatches callbacks and
# handles reconnecting.
# Other loop*() functions are available that give a threaded interface and a
# manual interface.
if loop_forever:
self.mqtt_client.loop_forever()
def error_str(rc):
"""Convert a Paho error to a human readable string."""
return '{}: {}'.format(rc, mqtt.error_string(rc))
def _on_disconnect(self, client, userdata, return_code):
error = mqtt.error_string(return_code)
print('disconnected from mqtt broker: {}'.format(error))
# Reconnects using the client information provided previously.
self._client.reconnect()
def mqtt_disconnect(self, client, userdata, rc):
log.debug("MQTT disconnect: %s", mqtt.error_string(rc))
def on_disconnect(self, client, obj, rc):
self.app.log.info("Disconnected from MQTT broker (rc=%d, %s)", rc, mqtt.error_string(rc))
self.connected = False
def on_disconnect(self, client, userdata, rc):
# We could implement a reconnect call.
self.is_connected = False
self.logger.info("[Exiting] Disconnected: %s" % mqtt.error_string(rc))
self.client.loop_stop()
self.connect()
def error_str(rc):
"""Convert a Paho error to a human readable string."""
return '{}: {}'.format(rc, mqtt.error_string(rc))
def on_connect(self, client, userdata, flags, rc):
print('on_connect: %s' % error_string(rc))
if rc != 0:
raise ByteportConnectException("Error while connecting to MQTT Broker: " + error_string(rc))
import paho.mqtt.client as mqtt
client = mqtt.Client()
client.connect("test.mosquitto.org", port=1883)
client.publish("IC.embedded/WhyPhy/test", "It's okay")
mqtt.error_string((client.publish("IC.embedded/WhyPhy/test", "It's okay")).rc)
def _on_disconnect(self, client, userdata, rc):
logger.info(mqtt.error_string(rc))
def on_disconnect(client: mqtt.Client, ref_self: IotManager, return_code: int) -> None:
"""Callback for when a device disconnects from mqtt broker."""
error = "{}: {}".format(return_code, mqtt.error_string(return_code))
ref_self.is_connected = False
def mqtt_publish(path, mqtt_message):
msg_info = client.publish(path, mqtt_message)
publish_out = mqtt.error_string(msg_info.rc)
print("publish status: " + publish_out + "\n")
def on_connect(self, client, userdata, flags, rc):
print("Succesful with result code " + str(rc))
# Subscribing in on_connect() means that if we lose the connection and
# reconnect then subscriptions will be renewed.
self.client.subscribe("IC.Embedded/IOS/#")
print(mqtt.error_string(MSG_INFO.rc))
def _on_connect(self, client, userdata, flags, rc):
if rc != mqtt_client.MQTT_ERR_SUCCESS:
log.error("unable to connect to broker '%s:%d': " % (self._addons['mqtt_server'],self._addons['mqtt_port']) + mqtt_client.error_string(rc))
return
log.info("connected to broker :)")
self._connected = True
# subscribe to topics list
try:
for topic in self._mqtt_topics:
log.debug("subscribing to " + str(topic))
self._connection.subscribe( topic ) # QoS=0 default
except Exception as ex:
log.warn("exception while subscribing to topic '%s' :" % str(topic) + str(ex))
def _mqtt_loop(self):
rc = self.mqtt_client.loop(timeout=0)
if rc != 0:
logger.error('Error in MQTT loop (%d): %s',
rc, paho.error_string(rc))
self._loop.call_later(1.0, self._mqtt_loop)
#Generate a message containing random color to simulate message sending from device for purpose of debugging Application(Js)
import paho.mqtt.client as mqtt
client = mqtt.Client(transport="websockets")
client.tls_set(certfile="keys/client.crt", keyfile="keys/client.key")
client.connect("test.mosquitto.org", port=8081)
import random
num = random.random()
print(num)
if (num < 0.2):
print("Blue")
MSG_INFO = client.publish("IC.Embedded/IOS/test", "Blue")
elif (num < 0.4):
print("Red")
MSG_INFO = client.publish("IC.Embedded/IOS/test", "Red")
elif (num < 0.6):
print("Orange")
MSG_INFO = client.publish("IC.Embedded/IOS/test", "Orange")
elif (num < 0.8):
print("White")
MSG_INFO = client.publish("IC.Embedded/IOS/test", "White")
else:
print("Pink")
MSG_INFO = client.publish("IC.Embedded/IOS/test", "Pink")
print(mqtt.error_string(MSG_INFO.rc))
def on_disconnect(client, userdata, rc):
print("Device disconnected with result code: " + str(rc))
print(mqtt.error_string(rc))
client = mqtt.Client()
client.tls_set(ca_certs="/home/pi/embedded/mosquitto.org.crt", certfile="/home/pi/embedded/client.crt", keyfile="/home/pi/embedded/client.key")
connected=False
while (not connected):
try:
client.connect("test.mosquitto.org", port=8884)
connected=True
except:
print("connection failed trying again")
#Cheching if connection is succesfull again
if client.connect("test.mosquitto.org", port=8884) == 0:
print("Connection successful")
else:
print("Error connection unsuccessful")
print(mqtt.error_string(RETURN_CODE))
sys.exit(1)
#We initialize the door to be Locked on start up
MSG_INFO = client.publish("IC.embedded/patriots/tmp", "Door Locked")
mqtt.error_string(MSG_INFO.rc) # MSG_INFO is result of publish()
#Reading the incoming message to see if the alarm system should be Active or Not
def on_message(client, userdata, message):
message_string = str(message.payload)
message_string = message_string[2:len(message_string)-1]
if message_string == "Active":
global warning_sent
warning_sent = False
elif message_string == "Not Active":
global warning_sent
def on_connect(client, data, flags, rc):
logger.info("Connection status: %s", mqtt.error_string(rc))
client.subscribe(MQTT_SETTINGS.topic_req, qos=1)
def error_str(rc):
return '{}: {}'.format(rc, mqtt.error_string(rc))
def _on_disconnect(self, client, userdata, rc):
_log.debug('on_disconnect event, status: {}'.format(
mqttc.error_string(rc)))
self.create_connection(False)
def on_connect(self, client, obj, flags, rc):
self.app.log.info("Connected to MQTT broker %s:%s (rc=%d, %s)", self.app.mqtt_broker, self.app.mqtt_port, rc, mqtt.error_string(rc))
self.app.log.info("Subscribing to: %s", self.app.topic)
self.client.subscribe(self.app.topic)
sampleSec = maxSampleSecs #20 mins is max sampling window
else:
sampleSec += 1 #increment cpm window time if less than 20 mins
runSec += 1 #increment total time
sendArray = [{
"time": datetime.now().strftime('%H:%M:%S'),
"currentCPM": currentCpm
}] #array of CPM and timestamp
payload = json.dumps(
{"CPMData":
sendArray}) #create JSON array with counts and timestamp
publish = client.publish("IC.embedded/Embedded/user1",
payload,
qos=0) #publish payload to broker
if publish.rc != 0:
print(mqtt.error_string(
publish.rc)) #notify if error in publishing
sampleMins = sampleSec / 60.0 #calculate minutes elapsed
#print(sampleMins)
if sampleMins != 0:
currentCpm = counts / sampleMins #calculate current CPM
else:
currentCpm = 0 #avoid division by zero
#print("Current CPM: {}".format(counts))
lcd_line_1 = datetime.now().strftime(
'%b %d %H:%M:%S\n') #display current date and time
lcd_line_2 = "Counts/min: " + str(
currentCpm) #display current count average
lcd.message = lcd_line_1 + lcd_line_2 #write date, time and counts to LCD
def _on_disconnect(self, client, userdata, return_code):
logger.info('disconnected from mqtt broker: {}'.format(
mqtt.error_string(return_code)))
self._client.reconnect()
def error_str(rc):
return "Some error occurred. {}: {}".format(rc, mqtt.error_string(rc))
raw=z, max=max_array[3], min=min_array[3], med_bool=1)
if update_med:
med_array[3] = (max_array[3] + min_array[3]) / 2
current_z, print_z = spi.update_sensor_out(curr=current_z,
val=z,
max_val=max_array[3],
med_val=med_array[3],
min_val=min_array[3],
weight=spi.z_weight,
threshold=15)
# Can probably format data (output from the function below) as a dict
data = spi.to_send(print_ir, print_x, print_y, print_z)
if data != "nan":
currentTime = datetime.datetime.now()
print("Message sent at:", currentTime)
j_data = extract_data(data)
print("Publishing to " + spi.publish_topic1 + "...")
print(
mqtt.error_string(
client.publish(topic=spi.publish_topic1,
payload=json.dumps(j_data),
qos=1).rc))
sleep(0.1)
else:
print("Pas de connexion")
spi.flash_led(spi.FAIL_LED, 2)
client.loop_stop()
break
print("--on_publish callback --mid: " + str(mid) )
client = mqtt.Client()
client.on_subscribe = on_subscribe
client.on_message = on_message
client.on_publish = on_publish
client.on_connect = on_connect
try:
client.username_pw_set(username="******", password="******")
client.connect("127.0.0.1", 1883)
except:
print("Connection Failed")
try:
client.subscribe("isima/G12/#", qos=0)
client.loop_start()
while True:
(rc, mid) = client.publish(topic="isima/G12", payload="TEST_G12 le message", qos=0)
(rc, mid) = client.publish(topic="isima/G13", payload="TEST_G13 test de base", qos=0)
print("Error return from publish of mid = " + str(mid) +" : " + mqtt.error_string(rc))
time.sleep(5)
except KeyboardInterrupt:
client.loop_stop()
client.unsubscribe("isima/G12/#")
client.disconnect()
print("Done.")
def on_disconnect(client, userdata, rc):
print 'Disconnection result:', error_string(rc)
def on_disconnect(client, userdata, rc):
logging.info("Disconnected with result: " + mqtt.error_string(rc))
led_set(False)
def _on_disconnect(self, client, userdata, return_code):
logger.info('disconnected from mqtt broker: {}'.format(mqtt.error_string(return_code)))
self._client.reconnect()
def unsubscribe(self, topic):
self.idMap_lock.acquire()
try:
(rc, mid) = self._iot_mqtt_client_handler.unsubscribe(topic)
new_key = idMap_key(topic, None)
ino_id = self.idMap[new_key].get_ino_id()
del self.idMap[new_key]
except BaseException as e:
send_output(self.wrapper_debug, self.wrapper_Tx, "U F " + str(e.message))
return
finally:
self.idMap_lock.release()
send_output(self.wrapper_debug, self.wrapper_Tx, "U " + str(rc) + " " + str(ino_id) + " " + mqtt.error_string(rc))
# send back the return value along with the ino_id for C side reference to free the subgroup slot (important)
return rc
#!/usr/bin/env python3
import time
import paho.mqtt.client as paho
broker = 'localhost'
queue = 'house/bulb1'
username = "******"
password = "******"
client = paho.Client('client-002')
client.username_pw_set(username=username, password=password)
print('connecting to broker {}'.format(broker))
res = client.connect(broker)
if res != paho.MQTT_ERR_SUCCESS:
print('connect failed: {}'.format(paho.error_string(res)))
exit(1)
print('publishing to {}'.format(queue))
res = client.publish(queue, 'hello world')
if res[0] != paho.MQTT_ERR_SUCCESS:
print('publish failed: {}'.format(paho.error_string(res)))
exit(1)
res = client.disconnect()
if res != paho.MQTT_ERR_SUCCESS:
print('disconnect failed: {}'.format(paho.error_string(res)))
exit(1)
print('done')
def error_str(rc):
"""Convert a Paho error to a human readable string."""
return "Some error occurred. {}: {}".format(rc, mqtt.error_string(rc))
def on_connect(client, data, flags, rc):
print_d("Connect: {msg}", msg=mqtt.error_string(rc))
client.subscribe(MQTT_SETTINGS.topic_req, qos=1)
def print_error_msg(rc):
if rc != mqtt.MQTT_ERR_SUCCESS:
mqtt.error_string(rc)
def run(self, death, translator_func, submit_func):
def on_message(client, userdata, msg):
if not msg.topic or not msg.payload:
return
try:
payload = msg.payload
if isinstance(payload, six.binary_type):
payload = payload.decode("utf8")
details = {'event': json.loads(payload)}
except (UnicodeError, ValueError):
LOG.exception("Received corrupted/invalid payload: %s",
msg.payload)
else:
message = translator_func(details)
if message is not None:
try:
submit_func(message)
except RuntimeError:
pass
config = self.config
real_client = utils.make_mqtt_client(config)
real_client.on_message = on_message
rc = mqtt.MQTT_ERR_SUCCESS
running = True
while not death.is_set() and running:
max_duration = self.MAX_READ_LOOP_DURATION
reconnect_wait = self.RECONNECT_WAIT
with timeutils.StopWatch(duration=max_duration) as watch:
try:
while (rc == mqtt.MQTT_ERR_SUCCESS
and not watch.expired()):
rc = real_client.loop(timeout=watch.leftover())
if death.is_set():
break
except IOError:
LOG.exception("Failed consumption")
rc = mqtt.MQTT_ERR_UNKNOWN
if rc in [
mqtt.MQTT_ERR_NO_CONN, mqtt.MQTT_ERR_CONN_REFUSED,
mqtt.MQTT_ERR_CONN_LOST, mqtt.MQTT_ERR_NOT_FOUND,
mqtt.MQTT_ERR_UNKNOWN
]:
LOG.warn("Reconnecting, reason=%s", mqtt.error_string(rc))
try:
real_client.reconnect()
except IOError:
LOG.exception("Failed reconnecting")
LOG.info("Waiting %s seconds before retrying",
reconnect_wait)
death.wait(reconnect_wait)
else:
rc = mqtt.MQTT_ERR_SUCCESS
elif rc == mqtt.MQTT_ERR_NOMEM:
# The client seems to leak memory...
#
# What a PITA...
LOG.critical("Regenerating client, client"
" reported out of memory")
try:
real_client = utils.make_mqtt_client(config)
except IOError:
LOG.critical(
"Fatal client failure (unable"
" to recreate client), reason=%s",
mqtt.error_string(rc))
running = False
else:
real_client.on_message = on_message
rc = mqtt.MQTT_ERR_SUCCESS
elif rc != mqtt.MQTT_ERR_SUCCESS:
LOG.critical("Fatal client failure, reason=%s",
mqtt.error_string(rc))
running = False
def on_mqtt_disconnect(self, client, userdata, rc):
logger.warning("Disconnected with result code %d", rc)
if rc == 1:
self.refresh_remote_token(force=True)
else:
logger.warning(mqtt.error_string(rc))
def disconnect(self):
try:
self._iot_mqtt_client_handler.disconnect()
self._iot_mqtt_client_handler.loop_stop()
except BaseException as e:
send_output(self.wrapper_debug, self.wrapper_Tx, "D F " + e.message)
return
cnt_sec = 0
while cnt_sec < MAX_CONN_TIME and self.disconn_res == -1: # waiting for on_disconnect
cnt_sec += 1
time.sleep(1)
if self.disconn_res != -1:
send_output(self.wrapper_debug, self.wrapper_Tx, "D " + str(self.disconn_res) + " " + mqtt.error_string(self.disconn_res))
else:
send_output(self.wrapper_debug, self.wrapper_Tx, "D F Disconnection time out")
return self.disconn_res
def _on_disconnect(client, userdata, flags, rc):
msg = mqtt.error_string(rc)
logging.warning("Disconnected from client: " + msg)
def publish(self, topic, payload, *args, **kwargs):
"""publish message using paho library
"""
logger.debug("Publishing on '%s'", topic)
msg = self._client.publish(topic, payload, *args, **kwargs)
if not msg.is_published:
raise exceptions.MQTTError("err {:s}: {:s}".format(_err_vals.get(msg.rc, "unknown"), paho.error_string(msg.rc)))
return msg
elif k == "D":
mqttc.disconnect()
connected = False
mqttc.loop_stop()
elif k == "P":
pub_topic = input("Publish to topic (<Enter> for '{}'): ".format(pub_topic)).strip() or pub_topic
pub_msg_template = input("Publish message template ({{}} replaced with next input) (<Enter> for '{}'): ".format(pub_msg_template)).strip() or pub_msg_template
payld = pub_msg_template
if '{}' in pub_msg_template:
pub_msg_subst = str(1 + int(pub_msg_subst)) if pub_msg_subst.isdigit() else pub_msg_subst
pub_msg_subst = input("{{}} substitution (<Enter> for {}): ".format(pub_msg_subst)).strip() or pub_msg_subst
payld = pub_msg_template.format(pub_msg_subst)
print("...publishing message '{}' to topic '{}' (qos=0, retain=False)".format(payld, pub_topic))
(result, msg_id) = mqttc.publish(pub_topic, payload=payld, qos=0, retain=False)
print("...msg_id={!r}, result={} ({})".format(msg_id, result, mqtt.error_string(result)))
elif k == "S":
sub_topic = input("Subscribe to topic (<Enter> for '{}'): ".format(sub_topic)).strip() or sub_topic
print("...subscribing to topic: {} (qos=0)".format(sub_topic))
mqttc.subscribe(sub_topic, qos=0)
elif k == "U":
sub_topic = input("Unsubscribe from topic (<Enter> for '{}'): ".format(sub_topic)).strip() or sub_topic
print("...unsubscribing from topic: " + sub_topic)
mqttc.unsubscribe(sub_topic)
elif k == "L":
log_enabled = not log_enabled
elif k == "Q":
def main():
# pylint: disable=too-many-locals
""" The main entry point. """
parser = init_parser()
options = parser.parse_args()
host = options.host
port = options.port
keepalive = options.keepalive
client_id = options.client_id
topic = options.topic
qos = options.qos
filename = options.file
interval = options.interval
min_interval = options.min_interval
max_interval = options.max_interval
prompt_to_send = options.prompt_to_send
client = mqtt.Client(client_id)
client.on_connect = on_connect
client.on_disconnect = on_disconnect
client.on_publish = on_publish
client.on_log = on_log
client.connect(host, port, keepalive)
client.loop_start()
publish_time = 0
with open(filename) as file_object:
message = file_object.readline().rstrip()
while message:
interval = random.randint(min_interval, max_interval)
current_time = int(time.time() + 0.5)
used_time = current_time - publish_time
if used_time < interval:
time.sleep(interval - used_time)
publish_time = int(time.time() + 0.5)
message = message.replace("{DATETIME}", str(publish_time))
if prompt_to_send:
print("press enter to send next message.")
if PY2:
raw_input() # (only a python 3 error) pylint: disable=undefined-variable
else:
input()
mqtt_message_info = client.publish(topic, message, qos=qos)
print("Publish: %s has return code %i, %s" %
(mqtt_message_info.mid, mqtt_message_info.rc,
mqtt.error_string(mqtt_message_info.rc)))
if mqtt_message_info.rc != mqtt.MQTT_ERR_SUCCESS:
raise ValueError(mqtt.error_string(mqtt_message_info.rc))
if not mqtt_message_info.is_published():
print("Waiting for publish.")
mqtt_message_info.wait_for_publish()
message = file_object.readline().rstrip()
client.disconnect()
print("Done")
client.on_message = on_message
client.on_connect = on_connect
client.on_publish = on_publish
try:
# client.username_pw_set(username="******", password="******")
client.connect("172.16.32.8", 1883)
except:
print("Connection Failed")
client.subscribe(topic_public_key, qos=0)
client.subscribe(topic_messages, qos=0)
client.loop_start()
# print(A_public_key)
while True:
# Si on a pas la clef publique de Bob, on publie la notre dans l'espoir que Bob reponde avec la sienne
if (Bob_public_key == b"0"):
# On publie notre clef publique
(rc, mid) = client.publish(topic=topic_public_key,
payload=A_public_key,
qos=0)
print("Error return from publish of mid = " + str(mid) + " : " +
mqtt.error_string(rc))
# (rc, mid) = client.publish(topic="/ISIMA/TP_7/GROUPE_12/Bob_messages", payload="ON", qos=0)
# print("Error return from publish of mid = " + str(mid) +" : " + mqtt.error_string(rc))
time.sleep(5)