lot_manager/MQTT.py

import json
import time

import paho.mqtt.client as mqtt

from tool import push_stream, close_stream, update, exec_sh, get_record, get_list_record, get_status


def on_connect(client, userdata, flags, rc):
    if rc == 0:
        client.subscribe('lot_mqtt')


# Message receiving callback
def on_message(client, userdata, msg):
    data = json.loads(msg.payload.decode('utf-8'))["msg"]
    if data == "push_stream":
        # 启动推流视频
        push_stream(client)
    elif data == "close_stream":
        # 关闭推流视频
        close_stream(client)
    elif data == "exec":
        #  执行命令
        exec_sh(msg, client)
    elif data == "update":
        #  git更新项目和配置文件
        update(client)
    elif data == "record_list":
        # 查看录像列表
        get_list_record()
    elif data == "record":
        # 获取录像
        get_record(msg, client)
    elif data == "status":
        # 查看运行状态
        get_status(client)
    else:
        # 错误类型
        client.publish('success', payload='No Such Type', qos=0)


times = 120


def exec_shutdown():
    pass


if __name__ == '__main__':
    while True:
        try:
            client = mqtt.Client(client_id='device1')
            client.username_pw_set("demo", "123456")
            # Specify callback function
            client.on_connect = on_connect
            client.on_message = on_message
            # Establish a connection
            # ceshi-mqtt.lihaink.cn
            client.connect('192.168.1.27', 1883)
            # Publish a message
            client.loop_forever()
        except:
            print("等待30秒连接")
            time.sleep(30)
            if times == 0:
                # 重启机器
                exec_shutdown()
            times -= 1