99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
#!/usr/bin/env python3
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import sys
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import json
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import logging
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import sentry_sdk
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import pika
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import requests
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from sentry_sdk.integrations.logging import LoggingIntegration
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import config
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import uuid
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from mqtt_helper import MQTT
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"""
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Main entry point
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"""
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__author__ = "@tormakris"
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__copyright__ = "Copyright 2020, Birbnetes Team"
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__module_name__ = "app"
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__version__text__ = "1"
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if config.SENTRY_DSN:
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sentry_logging = LoggingIntegration(
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level=logging.DEBUG, # Capture info and above as breadcrumbs
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event_level=logging.ERROR # Send errors as events
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)
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sentry_sdk.init(
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dsn=config.SENTRY_DSN,
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send_default_pii=True,
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integrations=[sentry_logging],
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traces_sample_rate=1.0,
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release=config.RELEASE_ID,
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environment=config.RELEASEMODE,
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_experiments={"auto_enabling_integrations": True}
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)
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def setup_rabbit(mqtt_: MQTT) -> None:
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logging.info("Connecting to RabbitMQ...")
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credentials = pika.PlainCredentials(config.RABBIT_USERNAME, config.RABBIT_PASSWORD)
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connection = pika.BlockingConnection(pika.ConnectionParameters(host=config.RABBIT_HOSTNAME,
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credentials=credentials,
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heartbeat=30,
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socket_timeout=45))
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channel = connection.channel()
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channel.exchange_declare(exchange=config.RABBIT_EXCHANGE, exchange_type='fanout')
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queue = channel.queue_declare(durable=True, auto_delete=True, queue=uuid.uuid4().urn.split(':')[2],
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exclusive=True).method.queue
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channel.queue_bind(exchange=config.RABBIT_EXCHANGE, queue=queue)
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channel.basic_consume(queue=queue, on_message_callback=on_message_creator(mqtt_), auto_ack=True)
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logging.debug("Starting consumption...")
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channel.start_consuming()
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def on_message_creator(mqtt_: MQTT):
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"""
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This generator is used, so that the mqtt object can be injected just when the callback is registered
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"""
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def on_message(channel, method_frame, header_frame, body):
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msg_json = json.loads(body)
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if 'probability' not in msg_json:
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logging.error("Malformed message from classifier")
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return
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if 'class' not in msg_json:
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logging.error("Malformed message from classifier")
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return
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# TODO: strurnus should not be hardcoded here
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if (msg_json['class'] == 'sturnus') and (msg_json['probability'] > config.TRIGGER_LEVEL):
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r = requests.get(f"http://{config.INPUT_HOSTNAME}/sample/{msg_json['tag']}")
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r.raise_for_status()
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if 'device_id' not in r.json():
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logging.error("Input-service response invalid")
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return
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logging.info(f"Sending alert command to device {r.json()['device_id']}")
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mqtt_.publish(subtopic=r.json()['device_id'],
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message=json.dumps({"command": "doAlert"}))
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return on_message
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if __name__ == "__main__":
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logging.basicConfig(
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stream=sys.stdout,
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format="%(asctime)s - %(name)s [%(levelname)s]: %(message)s",
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level=logging.DEBUG if '--debug' in sys.argv else logging.INFO
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)
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logging.info("Guard service starting...")
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mqtt = MQTT()
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mqtt.topic = config.MQTT_TOPIC
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mqtt.connect()
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mqtt.client.loop_start() # Start MQTT event loop on a different thread
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setup_rabbit(mqtt)
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