48 lines
No EOL
1.6 KiB
Python
48 lines
No EOL
1.6 KiB
Python
import paho.mqtt.client as mqtt
|
|
from dbHelper import MaDbHelper
|
|
|
|
class MlmAccess:
|
|
def __init__(self):
|
|
self._initDb()
|
|
self._initMqtt()
|
|
|
|
def _initDb(self):
|
|
self.db = MaDbHelper()
|
|
initUsers = [
|
|
("backend", "backend", ["mlmAccess/#"], ["mlmAccess/#"]),
|
|
("pair-actor", "pair-actor", ["mlmAccess/pair/request/actor"], ["mlmAccess/pair/response/actor"])
|
|
]
|
|
|
|
for username, password, publishAclPatterns, subscribeAclPatterns in initUsers:
|
|
if not self.db.addUser(username, password, publishAclPatterns, subscribeAclPatterns):
|
|
self.db.updateUser(username, password, publishAclPatterns, subscribeAclPatterns)
|
|
|
|
def _initMqtt(self):
|
|
self.mqtt = client = mqtt.Client(client_id="backend")
|
|
self.mqtt.username_pw_set("backend", "backend")
|
|
|
|
self.mqtt.on_connect = self._mqttOnConnect
|
|
self.mqtt.on_message = self._mqttOnMessage
|
|
|
|
print("connecting to broker")
|
|
print(self.mqtt.connect("localhost", 1883, 60))
|
|
|
|
self.mqtt.loop_forever()
|
|
|
|
def _mqttOnConnect(self, client, userdata, flags, rc):
|
|
print("Connected with result code "+str(rc))
|
|
|
|
if rc != 0:
|
|
print("")
|
|
|
|
print(client.subscribe("mlmAccess/pair/request/actor"))
|
|
|
|
def _mqttOnMessage(self, client, userdata, message):
|
|
print("message received " ,str(message.payload.decode("utf-8")))
|
|
print("message topic=",message.topic)
|
|
print("message qos=",message.qos)
|
|
print("message retain flag=",message.retain)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
MlmAccess() |