Files
hcpy/hc2mqtt
2024-03-19 17:06:21 +00:00

147 lines
4.3 KiB
Python
Executable File

#!/usr/bin/env python3
# Contact Bosh-Siemens Home Connect devices
# and connect their messages to the mqtt server
import json
import sys
import time
import ssl
from threading import Thread
import click
import click_config_file
import paho.mqtt.client as mqtt
from HCDevice import HCDevice
from HCSocket import HCSocket, now
@click.command()
@click.option("-d", "--devices_file", default="config/devices.json")
@click.option("-h", "--mqtt_host", default="localhost")
@click.option("-p", "--mqtt_prefix", default="homeconnect/")
@click.option("--mqtt_port", default=1883, type=int)
@click.option("--mqtt_username")
@click.option("--mqtt_password")
@click.option("--mqtt_ssl", is_flag=True)
@click.option("--mqtt_cafile")
@click.option("--mqtt_certfile")
@click.option("--mqtt_keyfile")
@click.option("--mqtt_clientname", default="hcpy")
@click_config_file.configuration_option()
def hc2mqtt(devices_file: str, mqtt_host: str, mqtt_prefix: str, mqtt_port: int, mqtt_username: str,
mqtt_password: str, mqtt_ssl: bool, mqtt_cafile: str, mqtt_certfile: str, mqtt_keyfile: str, mqtt_clientname: str):
click.echo(f"Hello {devices_file=} {mqtt_host=} {mqtt_prefix=} {mqtt_port=} {mqtt_username=} {mqtt_password=} "
f"{mqtt_ssl=} {mqtt_cafile=} {mqtt_certfile=} {mqtt_keyfile=} {mqtt_clientname=}")
with open(devices_file, "r") as f:
devices = json.load(f)
client = mqtt.Client(mqtt_clientname)
if mqtt_username and mqtt_password:
client.username_pw_set(mqtt_username, mqtt_password)
if mqtt_ssl:
if mqtt_cafile and mqtt_certfile and mqtt_keyfile:
client.tls_set(ca_certs=mqtt_cafile, certfile=mqtt_certfile, keyfile=mqtt_keyfile, cert_reqs=ssl.CERT_REQUIRED)
else:
client.tls_set(cert_reqs=ssl.CERT_NONE)
client.connect(host=mqtt_host, port=mqtt_port, keepalive=70)
for device in devices:
mqtt_topic = mqtt_prefix + device["name"]
print(now(), f"topic: {mqtt_topic}")
thread = Thread(target=client_connect, args=(client, device, mqtt_topic))
thread.start()
client.loop_forever()
# Map their value names to easier state names
topics = {
"InternalError": "Error",
"FatalErrorOccured": "Error",
}
global dev
dev = {}
def client_connect(client, device, mqtt_topic):
def on_message(client, userdata, msg):
print(msg.topic)
mqtt_state = msg.payload.decode()
mqtt_topic = msg.topic.split('/')
print(now(), f"received mqtt message {mqtt_state}")
try:
msg = json.loads(mqtt_state)
if 'uid' in msg:
dev[mqtt_topic[-2]].get("/ro/values", 1, "POST", msg)
else:
raise Exception(f"Payload {msg} is not correctly formatted")
except Exception as e:
print("ERROR", e, file=sys.stderr)
host = device["host"]
device_topics = topics
for value in device["features"]:
if "access" in device["features"][value] and "read" in device["features"][value]['access'].lower():
name = device["features"][value]['name'].split(".")
device_topics[name[-1]] = name[-1]
device_topics[value] = name[-1] #sometimes the returned key is a digit, making translation possible
state = {}
for topic in device_topics:
if not topic.isdigit(): #We only want the named topics
state[device_topics[topic]] = None
mqtt_set_topic = mqtt_topic + "/set"
print(now(), device["name"], f"set topic: {mqtt_set_topic}")
client.subscribe(mqtt_set_topic)
client.on_message = on_message
while True:
try:
print(now(), device["name"], f"connecting to {host}")
ws = HCSocket(host, device["key"], device.get("iv",None))
dev[device["name"]] = HCDevice(ws, device.get("features", None), device["name"])
#ws.debug = True
ws.reconnect()
while True:
msg = dev[device["name"]].recv()
if msg is None:
break
if len(msg) > 0:
print(now(), device["name"], msg)
update = False
for topic in device_topics:
value = msg.get(topic, None)
if value is None:
continue
# new_topic = topics[topic]
# if new_topic == "remaining":
# state["remainingseconds"] = value
# value = "%d:%02d" % (value / 60 / 60, (value / 60) % 60)
new_topic = device_topics[topic]
state[new_topic] = value
update = True
if not update:
continue
msg = json.dumps(state)
print(now(), device["name"], f"publish to {mqtt_topic} with {msg}")
client.publish(mqtt_topic + "/state", msg)
except Exception as e:
print("ERROR", host, e, file=sys.stderr)
time.sleep(5)
if __name__ == "__main__":
hc2mqtt()