mirror of
https://github.com/blakeblackshear/frigate.git
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94f7528885
* Get intel stats manually if parsing fails * Fix assignment * Clean up mqtt * Formatting * Fix logic
254 lines
8.5 KiB
Python
254 lines
8.5 KiB
Python
import logging
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import threading
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from typing import Any, Callable
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import paho.mqtt.client as mqtt
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from paho.mqtt.enums import CallbackAPIVersion
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from frigate.comms.dispatcher import Communicator
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from frigate.config import FrigateConfig
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logger = logging.getLogger(__name__)
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class MqttClient(Communicator): # type: ignore[misc]
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"""Frigate wrapper for mqtt client."""
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def __init__(self, config: FrigateConfig) -> None:
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self.config = config
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self.mqtt_config = config.mqtt
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self.connected = False
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self.started = False
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def subscribe(self, receiver: Callable) -> None:
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"""Wrapper for allowing dispatcher to subscribe."""
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self._dispatcher = receiver
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self._start()
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def publish(self, topic: str, payload: Any, retain: bool = False) -> None:
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"""Wrapper for publishing when client is in valid state."""
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if not self.connected:
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if self.started:
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logger.error(f"Unable to publish to {topic}: client is not connected")
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return
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self.client.publish(
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f"{self.mqtt_config.topic_prefix}/{topic}", payload, retain=retain
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)
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def stop(self) -> None:
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self.client.disconnect()
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def _set_initial_topics(self) -> None:
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"""Set initial state topics."""
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for camera_name, camera in self.config.cameras.items():
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self.publish(
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f"{camera_name}/recordings/state",
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"ON" if camera.record.enabled_in_config else "OFF",
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retain=True,
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)
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self.publish(
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f"{camera_name}/snapshots/state",
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"ON" if camera.snapshots.enabled else "OFF",
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retain=True,
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)
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self.publish(
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f"{camera_name}/audio/state",
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"ON" if camera.audio.enabled_in_config else "OFF",
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retain=True,
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)
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self.publish(
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f"{camera_name}/detect/state",
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"ON" if camera.detect.enabled else "OFF",
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retain=True,
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)
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self.publish(
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f"{camera_name}/motion/state",
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"ON",
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retain=True,
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)
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self.publish(
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f"{camera_name}/improve_contrast/state",
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"ON" if camera.motion.improve_contrast else "OFF", # type: ignore[union-attr]
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retain=True,
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)
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self.publish(
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f"{camera_name}/ptz_autotracker/state",
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"ON" if camera.onvif.autotracking.enabled_in_config else "OFF",
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retain=True,
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)
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self.publish(
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f"{camera_name}/motion_threshold/state",
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camera.motion.threshold, # type: ignore[union-attr]
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retain=True,
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)
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self.publish(
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f"{camera_name}/motion_contour_area/state",
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camera.motion.contour_area, # type: ignore[union-attr]
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retain=True,
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)
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self.publish(
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f"{camera_name}/motion",
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"OFF",
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retain=False,
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)
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self.publish(
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f"{camera_name}/birdseye/state",
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"ON" if camera.birdseye.enabled else "OFF",
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retain=True,
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)
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self.publish(
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f"{camera_name}/birdseye_mode/state",
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(
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camera.birdseye.mode.value.upper()
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if camera.birdseye.enabled
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else "OFF"
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),
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retain=True,
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)
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if self.config.notifications.enabled_in_config:
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self.publish(
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"notifications/state",
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"ON" if self.config.notifications.enabled else "OFF",
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retain=True,
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)
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self.publish("available", "online", retain=True)
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def on_mqtt_command(
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self, client: mqtt.Client, userdata: Any, message: mqtt.MQTTMessage
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) -> None:
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self._dispatcher(
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message.topic.replace(f"{self.mqtt_config.topic_prefix}/", "", 1),
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message.payload.decode(),
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)
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def _on_connect(
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self,
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client: mqtt.Client,
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userdata: Any,
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flags: Any,
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reason_code: mqtt.ReasonCode,
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properties: Any,
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) -> None:
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"""Mqtt connection callback."""
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threading.current_thread().name = "mqtt"
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if reason_code != 0:
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if reason_code == "Server Unavailable":
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logger.error(
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"Unable to connect to MQTT server: MQTT Server unavailable"
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)
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elif reason_code == "Bad user name or password":
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logger.error(
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"Unable to connect to MQTT server: MQTT Bad username or password"
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)
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elif reason_code == "Not authorized":
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logger.error("Unable to connect to MQTT server: MQTT Not authorized")
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else:
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logger.error(
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"Unable to connect to MQTT server: Connection refused. Error code: "
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+ reason_code.getName()
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)
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self.connected = True
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logger.debug("MQTT connected")
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client.subscribe(f"{self.mqtt_config.topic_prefix}/#")
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self._set_initial_topics()
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def _on_disconnect(
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self,
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client: mqtt.Client,
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userdata: Any,
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flags: Any,
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reason_code: mqtt.ReasonCode,
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properties: Any,
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) -> None:
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"""Mqtt disconnection callback."""
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self.connected = False
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logger.error("MQTT disconnected")
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def _start(self) -> None:
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"""Start mqtt client."""
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self.client = mqtt.Client(
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callback_api_version=CallbackAPIVersion.VERSION2,
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client_id=self.mqtt_config.client_id,
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)
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self.client.on_connect = self._on_connect
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self.client.will_set(
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self.mqtt_config.topic_prefix + "/available",
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payload="offline",
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qos=1,
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retain=True,
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)
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# register callbacks
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callback_types = [
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"recordings",
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"snapshots",
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"detect",
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"audio",
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"motion",
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"improve_contrast",
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"ptz_autotracker",
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"motion_threshold",
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"motion_contour_area",
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"birdseye",
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"birdseye_mode",
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]
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for name in self.config.cameras.keys():
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for callback in callback_types:
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self.client.message_callback_add(
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f"{self.mqtt_config.topic_prefix}/{name}/{callback}/set",
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self.on_mqtt_command,
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)
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if self.config.cameras[name].onvif.host:
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self.client.message_callback_add(
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f"{self.mqtt_config.topic_prefix}/{name}/ptz",
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self.on_mqtt_command,
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)
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if self.config.notifications.enabled_in_config:
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self.client.message_callback_add(
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f"{self.mqtt_config.topic_prefix}/notifications/set",
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self.on_mqtt_command,
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)
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self.client.message_callback_add(
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f"{self.mqtt_config.topic_prefix}/onConnect", self.on_mqtt_command
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)
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self.client.message_callback_add(
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f"{self.mqtt_config.topic_prefix}/restart", self.on_mqtt_command
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)
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if self.mqtt_config.tls_ca_certs is not None:
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if (
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self.mqtt_config.tls_client_cert is not None
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and self.mqtt_config.tls_client_key is not None
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):
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self.client.tls_set(
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self.mqtt_config.tls_ca_certs,
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self.mqtt_config.tls_client_cert,
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self.mqtt_config.tls_client_key,
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)
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else:
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self.client.tls_set(self.mqtt_config.tls_ca_certs)
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if self.mqtt_config.tls_insecure is not None:
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self.client.tls_insecure_set(self.mqtt_config.tls_insecure)
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if self.mqtt_config.user is not None:
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self.client.username_pw_set(
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self.mqtt_config.user, password=self.mqtt_config.password
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)
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try:
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# https://stackoverflow.com/a/55390477
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# with connect_async, retries are handled automatically
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self.client.connect_async(self.mqtt_config.host, self.mqtt_config.port, 60)
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self.client.loop_start()
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self.started = True
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except Exception as e:
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logger.error(f"Unable to connect to MQTT server: {e}")
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return
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