def render_qrcode(text):
"""
Displays a QR code with the given ``text`` on the terminal.
"""
qr = QRCode()
qr.add_data(text)
qr.print_tty()
def print_qr(data):
qr = QRCode()
qr.add_data(data)
qr.print_tty()
with open('./secret', 'w') as handle:
handle.write(partymode_totp_secret)
partymode_totp = pyotp.TOTP(partymode_totp_secret)
partymode_enabled = False
partymode_enabled_date = None
topic_bell = "w17/door/bell/state"
topic_party_set = "w17/door/partymode/enabled/set"
topic_party_state = "w17/door/partymode/enabled"
topic_door_lock_state = "w17/door/lock/state"
# print provisioning qrcode to terminal
print("QRCode, usable with TOTP Application:")
qr = QRCode()
qr.add_data(partymode_totp.provisioning_uri('enable key', 'w17/door/partymode'))
qr.print_tty()
# connection with mqtt broker, subscribe to updates for several states
def on_connect(client, userdata, flags, rc):
print("Verbunden mit mqtt.")
client.subscribe([
(topic_bell, 0), # Does the bell ring?
(topic_party_set, 0), # Does somebody try to en/disable the partymode?
(topic_door_lock_state, 0) # Is the door locked?
])
# receive updates from mqtt broker
def on_message(client, userdata, msg):
global partymode_enabled
# Read topic and payload from message
