118 lines
4.6 KiB
Python
118 lines
4.6 KiB
Python
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import json
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import logging
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import pprint
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import time
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import urllib.parse
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import urllib3
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import websocket
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from threading import Thread
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from odoo.addons.hw_drivers import main
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from odoo.addons.hw_drivers.tools import helpers
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_logger = logging.getLogger(__name__)
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websocket.enableTrace(True, level=logging.getLevelName(_logger.getEffectiveLevel()))
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def send_to_controller(device_type, params):
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"""
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Confirm the operation's completion by sending a response back to the Odoo server
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"""
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routes = {
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"printer": "/iot/printer/status",
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}
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params['iot_mac'] = helpers.get_mac_address()
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server_url = helpers.get_odoo_server_url() + routes[device_type]
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try:
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urllib3.disable_warnings()
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http = urllib3.PoolManager(cert_reqs='CERT_NONE')
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http.request(
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'POST',
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server_url,
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body=json.dumps({'params': params}).encode('utf8'),
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headers={
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'Content-type': 'application/json',
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'Accept': 'text/plain',
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},
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)
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except Exception:
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_logger.exception('Could not reach confirmation status URL: %s', server_url)
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def on_message(ws, messages):
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"""
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Synchronously handle messages received by the websocket.
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"""
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messages = json.loads(messages)
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_logger.debug("websocket received a message: %s", pprint.pformat(messages))
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iot_mac = helpers.get_mac_address()
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for message in messages:
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message_type = message['message']['type']
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if message_type == 'iot_action':
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payload = message['message']['payload']
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if iot_mac in payload['iotDevice']['iotIdentifiers']:
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for device in payload['iotDevice']['identifiers']:
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device_identifier = device['identifier']
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if device_identifier in main.iot_devices:
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start_operation_time = time.perf_counter()
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_logger.debug("device '%s' action started with: %s", device_identifier, pprint.pformat(payload))
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main.iot_devices[device_identifier].action(payload)
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_logger.info("device '%s' action finished - %.*f", device_identifier, 3, time.perf_counter() - start_operation_time)
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else:
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# likely intended as IoT share the same channel
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_logger.debug("message ignored due to different iot mac: %s", iot_mac)
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elif message_type != 'print_confirmation': # intended to be ignored
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_logger.warning("message type not supported: %s", message_type)
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def on_error(ws, error):
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_logger.error("websocket received an error: %s", error)
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def on_close(ws, close_status_code, close_msg):
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_logger.debug("websocket closed with status: %s", close_status_code)
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class WebsocketClient(Thread):
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iot_channel = ""
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def on_open(self, ws):
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"""
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When the client is setup, this function send a message to subscribe to the iot websocket channel
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"""
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ws.send(
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json.dumps({'event_name': 'subscribe', 'data': {'channels': [self.iot_channel], 'last': 0, 'mac_address': helpers.get_mac_address()}})
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)
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def __init__(self, url):
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url_parsed = urllib.parse.urlsplit(url)
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scheme = url_parsed.scheme.replace("http", "ws", 1)
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self.url = urllib.parse.urlunsplit((scheme, url_parsed.netloc, 'websocket', '', ''))
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Thread.__init__(self)
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def run(self):
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self.ws = websocket.WebSocketApp(self.url,
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header={"User-Agent": "OdooIoTBox/1.0"},
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on_open=self.on_open, on_message=on_message,
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on_error=on_error, on_close=on_close)
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# The IoT synchronised servers can stop in 2 ways that we need to handle:
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# A. Gracefully:
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# In this case a disconnection signal is sent to the IoT-box
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# The websocket is properly closed, but it needs to be established a new connection when
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# the server will be back.
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#
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# B. Forced/killed:
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# In this case there is no disconnection signal received
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#
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# This will also happen with the graceful quit as `reconnect` will trigger if the server
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# is offline while attempting the new connection
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while True:
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try:
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run_res = self.ws.run_forever(reconnect=10)
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_logger.debug("websocket run_forever return with %s", run_res)
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except Exception:
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_logger.exception("An unexpected exception happened when running the websocket")
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_logger.debug('websocket will try to restart in 10 seconds')
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time.sleep(10)
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