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Copy pathFeinstaubsensor_WebServer_to_MQTT.py
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Feinstaubsensor_WebServer_to_MQTT.py
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#!/usr/bin/env python3
# Written by Stefan Holstein
#
# Luftsensor Daten separiert über mqtt weiterleiten
# Luftsensor -> ThisServer -> MQTTBroker
#
#
#
# thanks to Nathan Hamiel (2010)
# # https://gist.github.com/huyng/814831
# and thanks to
# # https://stackoverflow.com/a/30288641/9722867
#
#
# sudo apt-get update
# for python3 use:
# sudo apt-get install python3-pip
# pip3 install paho-mqtt
# or
# for python2 use
# sudo apt-get install python-pip
# pip install paho-mqtt
# create Script start_MQTTWebServer.sh
# #!/bin/sh
# sleep 10
# python3 Feinstaubsensor_WebServer_to_MQTT.py &
# add to crontab after reboot
# crontab -e
# @reboot /home/pi/start_MQTTWebServer.sh
from http.server import HTTPServer, BaseHTTPRequestHandler
# from optparse import OptionParser
import paho.mqtt.client as mqtt
import json
import logging
from logging.handlers import RotatingFileHandler
class myHTTP_2_MQTT_Pushlisher():
def __init__(self, MQTT):
############################################
# Edit HTTP Server Port and IP here
############################################
port = 8080
IP = '127.0.0.1'
try:
server = HTTPServer((IP, port), RequestHandler)
server.mqtt = MQTT
server.mqtt.app_log.info('Listening HTTP on %s:%s' % (IP, port))
server.serve_forever()
except Exception as e:
MQTT.app_log.error("Error: starting HTTP Server: %s, IP: %s, Port: %s" %(e, IP, port) )
exit()
class main():
def __init__(self):
############################################
# Edit MQTT Server Port, IP, ID and PW here
############################################
mqttServer = "127.0.0.1"
mqttUserId = ""
mqttPassword = ""
mqttPort = 1883
############################################
# Edit Luftsensor ID or edit multiple IDs
############################################
AllowedIDs = ['1234567', '7654321']
Prefix = "tele"
Topic = "luftsensor_"
# Complete Topic:
# >>> tele/luftsensor_<SensorID>/<Parameter> Value
app_log = self.log()
self.mqttH = mqttHandler(mqttServer, mqttUserId, mqttPassword, mqttPort, AllowedIDs, Prefix, Topic, app_log)
self.server = myHTTP_2_MQTT_Pushlisher(self.mqttH)
def log(self):
log_formatter = logging.Formatter('%(asctime)s %(levelname)s %(funcName)s(%(lineno)d) %(message)s')
logFile = 'log.log'
logging_file_handler = RotatingFileHandler(logFile, mode='a', maxBytes=5 * 1024 * 1024,
backupCount=2, encoding=None, delay=0)
logging_file_handler.setFormatter(log_formatter)
logging_file_handler.setLevel(logging.INFO)
app_log = logging.getLogger('root')
app_log.setLevel(logging.INFO)
app_log.addHandler(logging_file_handler)
return app_log
class RequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
request_path = self.path
self.push_data(request_path)
# print("\n----- Request Start ----->\n")
# print("Request path:", request_path)
# print("Request headers:", self.headers)
# print("<----- Request End -----\n")
self.send_response(200)
self.send_header("Set-Cookie", "foo=bar")
self.end_headers()
def do_POST(self):
request_path = self.path
# print("\n----- Request Start ----->\n")
# print("Request path:", request_path)
request_headers = self.headers
content_length = request_headers.get('Content-Length')
length = int(content_length) if content_length else 0
data = self.rfile.read(length)
# self.read_all_data_from_sensor(self.format_data(data))
self.server.mqtt.HTTP_2_MQTT(data)
# self.server.mqtt.app_log.info("Content Length: %s" % (length))
# self.server.mqtt.app_log.info("Request headers: %s" % (request_headers))
# self.server.mqtt.app_log.info("Request payload: %s" % self.rfile.read(length))
# print("Content Length:", length)
# print("Request headers:", request_headers)
# print("Request payload:", self.rfile.read(length))
# print("<----- Request End -----\n")
self.send_response(200)
self.end_headers()
do_PUT = do_POST
do_DELETE = do_GET
def push_data(self, data_str):
self.server.mqtt.app_log.info("def push_data(): %s" %(str(data_str)))
pass
class mqttHandler():
def __init__(self, mqttServer, mqttUserId, mqttPassword, mqttPort, AllowedIDs, Prefix, Topic, app_log):
self.mqttServer = mqttServer
self.mqttUserId = mqttUserId
self.mqttPassword = mqttPassword
self.mqttPort = mqttPort
self.AllowedIDs = AllowedIDs
self.Prefix = Prefix
self.Topic = Topic
self.app_log = app_log
self.TopicAndPrefix = self.Prefix + "/" + self.Topic
self.init_mqtt()
def init_mqtt(self):
# print("init_mqtt")
self.mqttc = mqtt.Client()
try:
self.mqttc.username_pw_set(self.mqttUserId, self.mqttPassword)
self.mqttc.connect(self.mqttServer, self.mqttPort)
self.mqttc.loop_start()
self.app_log.info('Connected to MQTT-Broker on %s:%s' % (self.mqttServer, self.mqttPort))
except Exception as e:
self.app_log.error("Error: connecting mqtt Server: %s" %(e) )
def mqttPublish(self, Topic, Value):
# Publish to MQTT server
# print("mqttPublish", Topic, Value)
self.mqttc.publish(Topic, Value)
def read_all_data_from_sensor(self, parsed_json):
# print("read_all_data_from_sensor", parsed_json)
try:
esp8266id = parsed_json["esp8266id"]
if esp8266id in self.AllowedIDs:
# self.app_log.info("Known esp8266id: ", esp8266id)
for each in parsed_json['sensordatavalues']:
if "pressure" in str(each['value_type']):
# preassure data of BME280 have to be divided by 100
self.app_log.info(str(each['value_type']) + " " + str(float(each['value']) / 100))
Value = float(each['value']) / 100
else:
self.app_log.info(str(each['value_type']) + " " + str(each['value']))
Value = each['value']
Topic = self.TopicAndPrefix + str(esp8266id) + "/" + each['value_type']
######################################################
######################################################
self.mqttPublish(Topic, Value)
######################################################
######################################################
else:
self.app_log.warning("Ignore unknown ID: %s" % str(esp8266id))
except Exception as e:
self.app_log.error("error in read_all_data_from_sensor: %s" %(e))
def format_data(self, data):
try:
parsed_json = json.loads(data.decode().replace("'", '"'))
# print(type(data))
# print(type(parsed_json))
# print("extract_data . ", parsed_json)
return parsed_json
except Exception as e:
self.app_log.error("Error converting JSON DATA: %s" %(e))
return {}
def HTTP_2_MQTT(self, data):
self.app_log.info("HTTP_2_MQTT: %s" %(data))
self.read_all_data_from_sensor(self.format_data(data))
pass
if __name__ == "__main__":
# parser = OptionParser()
# parser.usage = ("Creates an http-server that will echo out any GET or POST parameters\n"
# "Run:\n\n"
# " reflect")
# (options, args) = parser.parse_args()
m = main()