79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
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import paho.mqtt.client as mqtt
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import regex as re
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class Door:
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def __init__(self, host, port=1883):
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self.state = None
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self.encoder_position = None
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self.token_file = 'door_tokens'
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self.nfc_logfile = 'nfc.log'
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self.mqtt_client = mqtt.Client()
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self.mqtt_client.on_connect = self.on_connect
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self.mqtt_client.on_message = self.on_message
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self.mqtt_client.connect(host=host, port=port)
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self.mqtt_client.loop_start()
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self.data_fields = ['name', 'organization', 'email', 'valid_thru']
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# The callback for when the client receives a CONNACK response from the server.
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def on_connect(self, client, userdata, flags, rc):
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print("Connected with result code " + str(rc))
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# Subscribing in on_connect() means that if we lose the connection and
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# reconnect then subscriptions will be renewed.
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client.subscribe("#")
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# The callback for when a PUBLISH message is received from the server.
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def on_message(self, client, userdata, msg):
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print(msg.topic + " " + str(msg.payload))
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if msg.topic == 'door/state/value':
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self.state = msg.payload.decode()
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elif msg.topic == 'door/position/value':
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self.encoder_position = int(msg.payload)
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def get_tokens(self):
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tokens = {}
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with open(self.token_file) as f:
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token_lines = f.readlines()
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for line in token_lines[1:]:
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data = line.split('|')
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inactive = '#' in data[0]
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token = data[0].strip().strip('#')
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name = data[1].strip() if len(data) > 1 else None
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organization = data[2].strip() if len(data) > 2 else None
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email = data[3].strip() if len(data) > 3 else None
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valid_thru = data[4].strip() if len(data) > 4 else None
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tokens[token] = {'name': name,
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'organization': organization,
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'email': email,
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'valid_thru': valid_thru,
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'inactive': inactive}
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return tokens
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def store_tokens(self, tokens):
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output = '# token | ' + ' | '.join(self.data_fields) + '\n'
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for t, data in tokens.items():
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output += '#' if data['inactive'] else ''
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output += t
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for key in self.data_fields:
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output += '|'
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output += data[key] if data[key] else ''
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output += '\n'
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with open(self.token_file, 'w') as f:
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f.write(output)
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def get_most_recent_token(self):
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# read last invalid token from logfile
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with open(self.nfc_logfile) as f:
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nfc_log = f.read()
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match = re.search(r"(?P<date>\d{4}-\d{2}-\d{2}) (?P<time>\d{2}:\d{2}:\d{2}) Invalid token: (?P<token>[[:xdigit:]]{14})",
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nfc_log, re.REVERSE)
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return match
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