98 lines
2.7 KiB
Python
98 lines
2.7 KiB
Python
import json
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import subprocess
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import time
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import paho.mqtt.client as mqtt
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from tool import push_stream, close_stream, update, exec_sh, get_record, get_list_record, get_status
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def on_connect(client, userdata, flags, rc):
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if rc == 0:
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client.subscribe('lot_mqtt')
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def valid(msg, client):
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p = subprocess.Popen(['cat /home/pi/device_name'], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = p.communicate()
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device_name = out.decode('utf-8')
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origin_data = json.loads(msg.payload.decode('utf-8'))
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if 'msg' not in origin_data:
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client.publish('error', payload='msg must be supplied', qos=0)
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return False
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if 'device_name' not in origin_data:
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client.publish('error', payload='device_name must be supplied', qos=0)
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return False
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if origin_data['device_name'] != device_name:
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return False
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return True
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# Message receiving callback
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def on_message(client, userdata, msg):
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if not valid(msg, client):
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client.publish('error', payload='验证失败', qos=0)
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return
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client.publish('success', payload='验证通过', qos=0)
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try:
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origin_data = json.loads(msg.payload.decode('utf-8'))
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data = origin_data["msg"]
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if data == "push_stream":
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# 启动推流视频
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push_stream(client)
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elif data == "close_stream":
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# 关闭推流视频
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close_stream(client)
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elif data == "exec":
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# 执行命令
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exec_sh(msg, client)
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elif data == "update":
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# git更新项目和配置文件
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update(client)
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elif data == "record_list":
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# 查看录像列表
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get_list_record()
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elif data == "record":
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# 获取录像
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get_record(msg, client)
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elif data == "status":
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# 查看运行状态
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get_status(client)
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else:
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# 错误类型
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client.publish('error', payload='No Such Type', qos=0)
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except Exception as e:
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pass
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times = 120
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def exec_shutdown():
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pass
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import os
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if __name__ == '__main__':
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while True:
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try:
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client = mqtt.Client(client_id='s')
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client.username_pw_set("demo", "123456")
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# Specify callback function
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client.on_connect = on_connect
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client.on_message = on_message
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# Establish a connection
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# ceshi-mqtt.lihaink.cn
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client.connect('ceshi-mqtt.lihaink.cn', 1883)
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# Publish a message
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client.loop_forever()
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except:
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print("等待30秒连接")
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time.sleep(30)
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if times == 0:
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# 重启机器
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exec_shutdown()
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times -= 1
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