meshcore-telemetry-scraper/main.py
2025-11-02 20:34:08 +01:00

107 lines
4.3 KiB
Python
Executable file

#!/usr/bin/env python3
# /// script
# requires-python = ">=3.13"
# dependencies = [
# "meshcore",
# "prometheus-client",
# "pyyaml",
# ]
# ///
import asyncio
import json
import yaml
import time
from meshcore import MeshCore, EventType, packets
from prometheus_client import CollectorRegistry, Gauge, push_to_gateway
def parse_public_key_from_contact_data(contact_data):
public_key_length = 64
packet_type_length = len(str(packets.PacketType.CONTACT_URI.value))
packet_path_specifier_length = 2
if contact_data and contact_data.startswith(str(packets.PacketType.CONTACT_URI.value)):
path_length = int(contact_data[packet_type_length:packet_type_length+packet_path_specifier_length])
offset = packet_type_length + packet_path_specifier_length + path_length * 2
return contact_data[offset:offset+public_key_length]
return False
async def setup(meshcore, config):
await meshcore.commands.set_time(int(time.time()))
result = await meshcore.commands.set_radio(config["radio_settings"]["freq"], config["radio_settings"]["bw"], config["radio_settings"]["sf"], config["radio_settings"]["cr"])
if result.type is EventType.ERROR:
print("Failed to setup radio")
exit(1)
await meshcore.commands.set_manual_add_contacts(False)
for repeater in config["repeaters"]:
public_key = parse_public_key_from_contact_data(repeater["contact_data"])
if not public_key:
print("Failed to parse public key from contact data: %s" % repeater["contact_data"])
continue
repeater["public_key"] = public_key
try:
result = await meshcore.commands.import_contact(bytes.fromhex(repeater["contact_data"]))
if result.type is EventType.ERROR:
raise Exception("Failed to import contact")
except:
print("Failed add contact from contact data: %s\nAborting." % repeater["contact_data"])
exit(1)
await meshcore.commands.set_manual_add_contacts(True)
await meshcore.ensure_contacts()
async def main():
with open("config.yaml", "r") as file:
config = yaml.safe_load(file)
meshcore = await MeshCore.create_serial(config["serial_device_path"])
await setup(meshcore, config)
for repeater in config["repeaters"]:
contact = meshcore.get_contact_by_key_prefix(repeater["public_key"])
await meshcore.commands.change_contact_path(contact, "".join(repeater["path"]))
print(contact)
tries = 0
while(tries <= config["retries"]):
tries += 1
await meshcore.commands.send_login(contact, repeater["password"])
result = await meshcore.wait_for_event(EventType.LOGIN_SUCCESS, timeout=config["timeout"])
if result is None:
print("Timeout waiting on login for %s" % repeater["public_key"])
else:
break
if tries == config["retries"] + 1:
print("Maximum login retries exceeded for %s" % repeater["public_key"])
break
result = None
tries = 0
while(tries <= config["retries"]):
tries += 1
result = await meshcore.commands.send_telemetry_req(repeater["public_key"])
if result.type == EventType.ERROR:
print("Error sending telemetry request for %s" % repeater["public_key"])
continue
result = await meshcore.wait_for_event(EventType.TELEMETRY_RESPONSE, timeout=config["timeout"])
if result is None:
print("Timeout waiting on telemetry for %s" % repeater["public_key"])
continue
else:
break
if tries == config["retries"] + 1:
print("Maximum telemetry request retries exceeded for %s" % repeater["public_key"])
else:
telemetry_data_list = result.payload["lpp"]
registry = CollectorRegistry()
for telemetry_data in telemetry_data_list:
if telemetry_data["type"] == "voltage":
gauge = Gauge("voltage", "Battery Voltage", registry=registry)
gauge.set(telemetry_data["value"])
push_to_gateway(config["prometheus"]["pushgateway_address"], job=config["prometheus"]["job"], grouping_key={"instance": contact["adv_name"]}, registry=registry)
if __name__ == "__main__":
asyncio.run(main())