158 lines
3.6 KiB
Python
Executable File
158 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# vim: ts=2 sw=2 et
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import grp
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import json
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import os
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import stat
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import subprocess
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import threading
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import time
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from configparser import ConfigParser
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from dataclasses import dataclass
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import RPi.GPIO as gpio
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import paho.mqtt.client as mqtt
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class FoodoorMQTT:
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def __init__(self, area):
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self.area = area
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self.client = mqtt.Client()
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self.client.on_connect = self.on_connect
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self.client.on_message = self.on_message
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self._connect_lock = threading.Condition()
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def connect(self):
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try:
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self.client.connect("mqtt.chaospott.de")
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self.client.loop_start()
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with self._connect_lock:
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self._connect_lock.wait()
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except Exception as e:
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print(f"Verbindungsfehler zu MQTT-Server: {e}")
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def disconnect(self):
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self.client.loop_stop()
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def on_connect(self, client, userdata, flags, rc):
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with self._connect_lock:
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self._connect_lock.notify()
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def on_message(self, client, userdata, msg):
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print(f"MQTT-Server Message: {msg.topic} {msg.payload}")
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def send_state(self, locked: bool):
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self.client.publish(f"foobar/{self.area}/foodoor/status", {
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False: "open",
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True: "closed",
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}[locked], qos=0, retain=True)
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# Definitions for output
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PIN_OPEN = 24
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PIN_CLOSE = 27
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# Read config
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parser = ConfigParser()
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parser.read('/etc/foodoord.conf')
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@dataclass
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class API:
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location: str
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api_url: str
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consumer_key: str
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consumer_secret: str
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def update_state(self, locked):
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subprocess.check_call([
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"/usr/bin/curl", "-XPOST",
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"--header", "Content-Type: application/json",
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"--data",
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json.dumps({"consumer_key": self.consumer_key, "consumer_secret": self.consumer_secret, self.location: locked}),
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self.api_url
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])
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MQTT = FoodoorMQTT("unten")
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APIv1 = API("cellar",
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parser.get('doorstatus', 'status_url'),
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parser.get('doorstatus', 'key'),
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parser.get('doorstatus', 'secret'),
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)
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APIv2 = API("cellar",
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parser.get('doorstatusv2', 'status_url'),
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parser.get('doorstatusv2', 'key'),
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parser.get('doorstatusv2', 'secret'),
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)
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def write_state(state):
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try:
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with open("/tmp/door_state", "w") as f:
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f.write(state)
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except:
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pass
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def update_api(locked):
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try:
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MQTT.send_state(locked)
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except:
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pass
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try:
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APIv1.update_state(locked)
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except:
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pass
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try:
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APIv2.update_state(locked)
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except:
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pass
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def main():
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# Start settings
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gpio.setmode(gpio.BCM)
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gpio.setup(PIN_OPEN, gpio.OUT)
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gpio.setup(PIN_CLOSE, gpio.OUT)
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# Setting up FiFo to get sshd-output
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try:
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os.mkfifo("/var/run/foodoord.pipe")
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os.chown("/var/run/foodoord.pipe", -1, grp.getgrnam('foodoor')[2])
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os.chmod("/var/run/foodoord.pipe", stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IWGRP)
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except OSError:
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pass
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MQTT.connect()
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ssh_input = open("/var/run/foodoord.pipe", "r")
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while True:
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# Read sshd output from pipe
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pipe_cmd = ssh_input.readline().strip()
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if pipe_cmd == "close":
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gpio.output(PIN_CLOSE, 1)
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time.sleep(1)
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gpio.output(PIN_CLOSE, 0)
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write_state("closed")
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update_api(True)
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elif pipe_cmd == "open":
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# Locking
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gpio.output(PIN_OPEN, 1)
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time.sleep(1)
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gpio.output(PIN_OPEN, 0)
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write_state("open") # Save State
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update_api(False) # Status Update
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time.sleep(0.2)
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if __name__ == "__main__":
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main()
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