48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
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import paho.mqtt.client as mqtt
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from dbHelper import MaDbHelper
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class MlmAccess:
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def __init__(self):
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self._initDb()
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self._initMqtt()
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def _initDb(self):
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self.db = MaDbHelper()
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initUsers = [
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("backend", "backend", ["mlmAccess/#"], ["mlmAccess/#"]),
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("pair-actor", "pair-actor", ["mlmAccess/pair/request/actor"], ["mlmAccess/pair/response/actor"])
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]
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for username, password, publishAclPatterns, subscribeAclPatterns in initUsers:
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if not self.db.addUser(username, password, publishAclPatterns, subscribeAclPatterns):
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self.db.updateUser(username, password, publishAclPatterns, subscribeAclPatterns)
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def _initMqtt(self):
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self.mqtt = client = mqtt.Client(client_id="backend")
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self.mqtt.username_pw_set("backend", "backend")
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self.mqtt.on_connect = self._mqttOnConnect
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self.mqtt.on_message = self._mqttOnMessage
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print("connecting to broker")
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print(self.mqtt.connect("localhost", 1883, 60))
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self.mqtt.loop_forever()
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def _mqttOnConnect(self, client, userdata, flags, rc):
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print("Connected with result code "+str(rc))
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if rc != 0:
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print("")
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print(client.subscribe("mlmAccess/pair/request/actor"))
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def _mqttOnMessage(self, client, userdata, message):
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print("message received " ,str(message.payload.decode("utf-8")))
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print("message topic=",message.topic)
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print("message qos=",message.qos)
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print("message retain flag=",message.retain)
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if __name__ == "__main__":
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MlmAccess()
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