def run_keypad():
kc_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
kc_port = 10001
as_port = 10010
as_ip = '172.20.10.10'
server_address = ('', kc_port)
kc_socket.bind(server_address)
while True:
try:
creds = None
print('Creds set to {}'.format(creds))
# Wait for user to enter all credentials in keypad
while creds == None or creds == (None, None, None):
creds = read_keypad()
print('Creds set to {}'.format(creds))
# Credentials were entered, save and print them
user_code, hashed_passcode, safe_number = creds
print('UC:{} --- HP:{} --- SN:{}'.format(user_code, hashed_passcode, safe_number))
send_user_data_udp(user_code, hashed_passcode, safe_number, as_ip, as_port, kc_socket)
print('Data sent')
ack, address = utils.receive_pkt(kc_socket, kc_port)
decoded_ack, err = utils.decode_ack(ack)
print('Received ACK: {} --- From {}'.format(decoded_ack, address))
set_LED(decoded_ack)
except KeyboardInterrupt:
print('\nQuitting application...')
sys.exit(0)
def wait_dc_ack(socket, safe, thread_port):
"""
Wait Ack from Door Controller
Parameters
---------
socket: Socket
socket to send possible error
safe: int
safe number
thread_port: int
Port of current thread
Returns
------
Str
Ack from Door Controller
"""
ack = None
# Wait for ack from dc. Error occurs if timeout happens 3 times.
for i in range(3):
buf, address = udp_utils.receive_pkt(socket, thread_port)
if buf != None:
break
if address is None:
print("Timeout occured when waiting for DC")
elif buf is None: # Error
error_mes = udp_utils.create_error(address)
udp_utils.send_pkt(socket, error_mes, address, dc_port)
else:
ack, error = udp_utils.decode_ack(buf)
if ack is None: # Error
error_mes = udp_utils.create_error(error)
udp_utils.send_pkt(socket, error_mes, address, dc_port)
return ack
def receive_udp_ack(s):
'''Wait for an acknowledgment packet from the Access System.'''
port = 8080
buf, address = utils.receive_pkt(s, port)
ack_data = utils.decode_ack(buf)
if ack_data is None:
print('Error receiving ACK packet')
return False
return True
def test_decode_ack_5():
encoded = b'XYZ\0\0'
expected_result = None, 'empty_packet'
assert utils.decode_ack(encoded) == expected_result
def test_decode_ack_3():
encoded = None
expected_result = None, 'empty_packet'
assert utils.decode_ack(encoded) == expected_result
def test_decode_ack_2():
encoded = '0x02False\0'.encode()
expected_result = False, ''
assert utils.decode_ack(encoded) == expected_result
def test_decode_ack_1():
encoded = '0x02True\0'.encode()
expected_result = True, ''
assert utils.decode_ack(encoded) == expected_result
