75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
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#!/usr/bin/python3
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import paho.mqtt.client as mqtt
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import paho.mqtt.publish as publish
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import traceback
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import os
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import datetime
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monitor_state = 1
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def on_connect(mqttc, obj, flags, rc):
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now = datetime.datetime.now()
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print(str(now) + ": " +"Connected to %s:%s" % (mqttc._host, mqttc._port))
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def on_message(mqttc, obj, msg):
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global monitor_state
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now = datetime.datetime.now()
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print(str(now) + ": " +msg.topic+" "+str(msg.qos)+" "+str(msg.payload))
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if msg.payload.decode('UTF-8') == 'halt':
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print('powering off')
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try:
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publish.single("dom/pimirror-ack", "went-halt", hostname="192.168.31.5")
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print("ack sent")
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except Exception as e:
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print("Exception when sending:" + str(e))
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except:
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print("Exception when sending:" + traceback.format_exc())
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os.system("sudo shutdown now -h")
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elif msg.payload.decode('UTF-8') == 'display_on':
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if monitor_state == 0:
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monitor_state = 1
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os.system("/home/pi/display_on.sh")
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print("display on")
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elif msg.payload.decode('UTF-8') == 'display_off':
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if monitor_state == 1:
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monitor_state = 0
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os.system("/home/pi/display_off.sh")
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print("display off")
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def on_publish(mqttc, obj, mid):
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now = datetime.datetime.now()
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print(str(now) + ": " +"mid: "+str(mid))
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def on_subscribe(mqttc, obj, mid, granted_qos):
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now = datetime.datetime.now()
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print(str(now) + ": " +"Subscribed: "+str(mid)+" "+str(granted_qos))
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def on_log(mqttc, obj, level, string):
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now = datetime.datetime.now()
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print(str(now) + ": " +string)
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# If you want to use a specific client id, use
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# mqttc = mqtt.Client("client-id")
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# but note that the client id must be unique on the broker. Leaving the client
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# id parameter empty will generate a random id for you.
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mqttc = mqtt.Client()
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mqttc.on_message = on_message
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mqttc.on_connect = on_connect
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mqttc.on_publish = on_publish
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mqttc.on_subscribe = on_subscribe
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# Uncomment to enable debug messages
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mqttc.on_log = on_log
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mqttc.connect("192.168.31.5")
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mqttc.subscribe("dom/pimirror", 0)
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mqttc.loop_forever()
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