rtl_433/examples/rtl_433_statsd_relay.py

74 lines
1.8 KiB
Python
Executable File

#!/usr/bin/env python
"""Statsd monitoring relay for rtl_433."""
# Needs Python statsd Network plugin, s.a. https://github.com/jsocol/pystatsd
# pip install pystatsd
# -or-
# curl -o statsd.py https://github.com/jsocol/pystatsd/raw/v3.2/statsd/client.py
# Start rtl_433 (rtl_433 -F syslog::1433), then this script
from __future__ import print_function
import socket
import json
from statsd import StatsClient
UDP_IP = "127.0.0.1"
UDP_PORT = 1433
STATSD_HOST = "127.0.0.1"
STATSD_PORT = 8125
STATSD_PREFIX = "rtlsdr"
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((UDP_IP, UDP_PORT))
def sanitize(text):
return text.replace(" ", "_")
def parse_syslog(line):
"""Try to extract the payload from a syslog line."""
line = line.decode("ascii") # also UTF-8 if BOM
if line.startswith("<"):
# fields should be "<PRI>VER", timestamp, hostname, command, pid, mid, sdata, payload
fields = line.split(None, 7)
line = fields[-1]
return line
def rtl_433_probe():
statsd = StatsClient(host=STATSD_HOST,
port=STATSD_PORT,
prefix=STATSD_PREFIX)
while True:
line, addr = sock.recvfrom(1024)
try:
line = parse_syslog(line)
data = json.loads(line)
label = sanitize(data["model"])
if "channel" in data:
label += ".CH" + str(data["channel"])
if "battery_ok" in data:
statsd.gauge(label + '.battery', data["battery_ok"])
if "humidity" in data:
statsd.gauge(label + '.humidity', data["humidity"])
statsd.gauge(label + '.temperature', data["temperature_C"])
except KeyError:
pass
except ValueError:
pass
if __name__ == "__main__":
rtl_433_probe()