def login_pressed(self):
raw_users = util.read_file("users.txt")
if raw_users == None:
users = []
raw_users = ""
else:
users = util.trim(raw_users).split("\n")
user_lookup = {}
for user in users:
name = util.alphanums(util.trim(user[32:]))
password = user[:32].lower()
user_lookup[name] = password
user = util.alphanums(self.username.text)
password = user_lookup.get(user, None)
if password == None:
password = util.md5(str(time.time()) + "leprechauns")
raw_users += "\n" + password + user
util.write_file("users.txt", raw_users)
self.auth_request = network.send_authenticate(user, password)
self.password = password
def login_pressed(self):
raw_users = util.read_file('users.txt')
if raw_users == None:
users = []
raw_users = ''
else:
users = util.trim(raw_users).split('\n')
user_lookup = {}
for user in users:
name = util.alphanums(util.trim(user[32:]))
password = user[:32].lower()
user_lookup[name] = password
user = util.alphanums(self.username.text)
password = user_lookup.get(user, None)
if password == None:
password = util.md5(str(time.time()) + "leprechauns")
raw_users += "\n" + password + user
util.write_file('users.txt', raw_users)
self.auth_request = network.send_authenticate(user, password)
self.password = password
def update_address(self, new_address):
global _server_address
_server_address = new_address
util.verboseprint("SERVER HAS MOVED TO:", new_address)
util.write_file('server.txt', new_address)
def update_address(self, new_address):
global _server_address
_server_address = new_address
util.verboseprint("SERVER HAS MOVED TO:", new_address)
util.write_file('server.txt', new_address)
def receive(self):
""" This main function initializes the radios,
receives the file and stores it in memory. """
# Initialize loop variables and functions
rx_success = False
seq_num = 1
payload_list = list()
self.receiver.startListening()
# Receive file
while not rx_success:
rx_buffer = []
received_something = False
while not received_something:
if self.wait_for_data(self.receiver):
self.receiver.read(rx_buffer,
self.receiver.getDynamicPayloadSize())
received_something = True
payload = rx_buffer[self.config.CRC_SIZE +
self.config.SEQ_NUM_SIZE:]
if bytes(payload) != b'ENDOFTRANSMISSION':
crc = rx_buffer[:self.config.CRC_SIZE]
seq = int.from_bytes(
rx_buffer[self.config.CRC_SIZE:self.config.CRC_SIZE +
self.config.SEQ_NUM_SIZE],
byteorder='big')
seq_payload = rx_buffer[self.config.CRC_SIZE:]
if util.check_crc(crc, seq_payload):
if seq == seq_num:
util.send_packet(self.sender,
self.build_frame(b'ACK', seq_num))
if seq_num == 1 and len(payload_list) == 0:
payload_list.append(bytes(payload))
print("Packet number " + str(seq_num) +
" received successfully")
elif seq == seq_num + 1:
seq_num = seq_num + 1
payload_list.append(bytes(payload))
util.send_packet(self.sender,
self.build_frame(b'ACK', seq_num))
print("Packet number " + str(seq_num) +
" received successfully")
else:
print(" Receiver out of order packet. Rcv: " +
str(seq) + " Exp: " + str(seq_num + 1))
else:
util.send_packet(self.sender,
self.build_frame(b'ERROR', seq_num))
print(" Packet number " + str(seq_num) +
" received incorrectly")
else:
seq_num = seq_num + 1
util.send_packet(self.sender,
self.build_frame(b'ACK', seq_num))
rx_success = True
print("RECEPTION SUCCESSFUL")
# Save and uncompress file
try:
util.write_file(self.config.OUT_FILEPATH_COMPRESSED, payload_list)
uncompress_success = util.uncompress_file(self.config)
except IOError:
print("ERROR when saving the file")
return False
if uncompress_success:
# Return true if successful
return True
else:
return False
