lot_manager/MQTT.py

99 lines
3.3 KiB
Python

import datetime
import time
import paho.mqtt.client as mqtt
from device import device_name
from tool import *
import configparser
config = configparser.ConfigParser()
config.read('/home/pi/lot_manager/conf/main/config.conf')
# config.read('/home/lihai/pythonProjects/lot_manager/conf/main/config.conf')
def valid(msg, client):
origin_data = json.loads(msg.payload.decode('utf-8'))
if 'msg' not in origin_data:
client.publish('error', payload='msg must be supplied', qos=0)
return False
if 'device_name' not in origin_data:
client.publish('error', payload='device_name must be supplied', qos=0)
return False
if device_name != origin_data['device_name']:
return False
return True
class MQTTClient:
def __init__(self, broker, port, topic, username, password):
self.broker = broker
self.port = port
self.topic = topic
self.username = username
self.password = password
self.client = mqtt.Client(client_id=device_name)
self.client.username_pw_set(self.username, self.password)
self.client.on_connect = self.on_connect
self.client.on_message = self.on_message
def on_connect(self, client, userdata, flags, rc):
self.client.subscribe(self.topic)
self.client.publish('success', payload='成功订阅lot_mqtt,time=' + str(datetime.datetime.now()), qos=0)
def on_message(self, client, userdata, msg):
if not valid(msg, client):
client.publish('error', payload='验证失败', qos=0)
return
client.publish('success', payload='验证通过', qos=0)
try:
origin_data = json.loads(msg.payload.decode('utf-8'))
data = origin_data["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('error', payload='No Such Type', qos=0)
except Exception as e:
pass
def start(self):
self.client.connect(self.broker, self.port)
if __name__ == '__main__':
# broker = config.get("broker", "host")
# # 这里必须是int类型
# port = config.getint("broker", "port")
# topic = config.get("topic", "name")
# username = config.get("security", "username")
# password = config.get("security", "password")
# print(broker, port, topic, username, password)
MQTT = MQTTClient("192.168.1.27", 1883, "lot_mqtt", "demo", "123456")
while True:
try:
MQTT.start()
MQTT.client.loop_forever()
except Exception as e:
time.sleep(30)