def guard():
"""Function to continually accept input and determine when to unlock door."""
# TODO: How can we verify that this is running? Should it periodically call home?
LOGFORMAT = '%(asctime)-15s %(message)s'
logging.basicConfig(filename='/var/log/latchburg.log', level=logging.DEBUG, format=LOGFORMAT)
ver = Recognizer()
interface = EntryAttemptInterface()
with Latch() as latch:
while True:
try:
attempt = interface.getAttempt()
if attempt == None:
break
result = ver.check(attempt)
if result != None:
latch.unlock(INTERVAL)
logging.info('Allowed access for user %s', result)
else:
logging.warning('Unauthorized attempt: %s', attempt)
except Exception as inst:
logging.error(inst)
