blakeblackshear.frigate/frigate/mqtt.py

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import logging
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import threading
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import paho.mqtt.client as mqtt
from frigate.config import FrigateConfig
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logger = logging.getLogger(__name__)
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def create_mqtt_client(config: FrigateConfig, camera_metrics):
mqtt_config = config.mqtt
def on_clips_command(client, userdata, message):
payload = message.payload.decode()
logger.debug(f"on_clips_toggle: {message.topic} {payload}")
camera_name = message.topic.split('/')[-3]
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clips_settings = config.cameras[camera_name].clips
if payload == 'ON':
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if not clips_settings.enabled:
logger.info(f"Turning on clips for {camera_name} via mqtt")
clips_settings._enabled = True
elif payload == 'OFF':
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if clips_settings.enabled:
logger.info(f"Turning off clips for {camera_name} via mqtt")
clips_settings._enabled = False
else:
logger.warning(f"Received unsupported value at {message.topic}: {payload}")
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state_topic = f"{message.topic[:-4]}/state"
client.publish(state_topic, payload, retain=True)
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def on_snapshots_command(client, userdata, message):
payload = message.payload.decode()
logger.debug(f"on_snapshots_toggle: {message.topic} {payload}")
camera_name = message.topic.split('/')[-3]
snapshots_settings = config.cameras[camera_name].snapshots
if payload == 'ON':
if not snapshots_settings.enabled:
logger.info(f"Turning on snapshots for {camera_name} via mqtt")
snapshots_settings._enabled = True
elif payload == 'OFF':
if snapshots_settings.enabled:
logger.info(f"Turning off snapshots for {camera_name} via mqtt")
snapshots_settings._enabled = False
else:
logger.warning(f"Received unsupported value at {message.topic}: {payload}")
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state_topic = f"{message.topic[:-4]}/state"
client.publish(state_topic, payload, retain=True)
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def on_detect_command(client, userdata, message):
payload = message.payload.decode()
logger.debug(f"on_detect_toggle: {message.topic} {payload}")
camera_name = message.topic.split('/')[-3]
detect_settings = config.cameras[camera_name].detect
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if payload == 'ON':
if not camera_metrics[camera_name]["detection_enabled"].value:
logger.info(f"Turning on detection for {camera_name} via mqtt")
camera_metrics[camera_name]["detection_enabled"].value = True
detect_settings._enabled = True
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elif payload == 'OFF':
if camera_metrics[camera_name]["detection_enabled"].value:
logger.info(f"Turning off detection for {camera_name} via mqtt")
camera_metrics[camera_name]["detection_enabled"].value = False
detect_settings._enabled = False
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else:
logger.warning(f"Received unsupported value at {message.topic}: {payload}")
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state_topic = f"{message.topic[:-4]}/state"
client.publish(state_topic, payload, retain=True)
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def on_connect(client, userdata, flags, rc):
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threading.current_thread().name = "mqtt"
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if rc != 0:
if rc == 3:
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logger.error("MQTT Server unavailable")
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elif rc == 4:
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logger.error("MQTT Bad username or password")
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elif rc == 5:
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logger.error("MQTT Not authorized")
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else:
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logger.error("Unable to connect to MQTT: Connection refused. Error code: " + str(rc))
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logger.info("MQTT connected")
client.publish(mqtt_config.topic_prefix+'/available', 'online', retain=True)
client = mqtt.Client(client_id=mqtt_config.client_id)
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client.on_connect = on_connect
client.will_set(mqtt_config.topic_prefix+'/available', payload='offline', qos=1, retain=True)
# register callbacks
for name in config.cameras.keys():
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client.message_callback_add(f"{mqtt_config.topic_prefix}/{name}/clips/set", on_clips_command)
client.message_callback_add(f"{mqtt_config.topic_prefix}/{name}/snapshots/set", on_snapshots_command)
client.message_callback_add(f"{mqtt_config.topic_prefix}/{name}/detect/set", on_detect_command)
if not mqtt_config.user is None:
client.username_pw_set(mqtt_config.user, password=mqtt_config.password)
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try:
client.connect(mqtt_config.host, mqtt_config.port, 60)
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except Exception as e:
logger.error(f"Unable to connect to MQTT server: {e}")
raise
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client.loop_start()
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for name in config.cameras.keys():
client.publish(f"{mqtt_config.topic_prefix}/{name}/clips/state", 'ON' if config.cameras[name].clips.enabled else 'OFF', retain=True)
client.publish(f"{mqtt_config.topic_prefix}/{name}/snapshots/state", 'ON' if config.cameras[name].clips.enabled else 'OFF', retain=True)
client.publish(f"{mqtt_config.topic_prefix}/{name}/detect/state", 'ON' if config.cameras[name].clips.enabled else 'OFF', retain=True)
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client.subscribe(f"{mqtt_config.topic_prefix}/+/clips/set")
client.subscribe(f"{mqtt_config.topic_prefix}/+/snapshots/set")
client.subscribe(f"{mqtt_config.topic_prefix}/+/detect/set")
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return client