def _get_message(self):
message = get_message(self._current_client.connection, PACKET_SIZE)
if not message:
raise DisconnectedException
else:
return message
def _get_message(connection: socket.socket):
message = get_message(connection, PACKET_SIZE)
if not message:
raise DisconnectedException
else:
return message
def execute(self):
data = {'type': Commands.ECHO.value, 'payload': self._data}
message = compose_message(data)
self._connection.sendall(message)
response = get_message(self._connection, PACKET_SIZE)
echoed_data = response['payload']
print(f'Echoed data: {echoed_data}')
def execute(self):
data = {'type': Commands.TIME.value}
message = compose_message(data)
self._connection.sendall(message)
response = get_message(self._connection, PACKET_SIZE)
time = response['payload']
print(f'Time, according to server, is {time}')
def _send_request_message(self, file_name: str, file_size: int):
data = {'type': Commands.DOWNLOAD.value, 'file_name': file_name, 'file_size': file_size}
message = compose_message(data)
self._client.connection.send(message)
response = get_message(self._client.connection)
if not response['start']:
print('Client denied download!')
raise FileExchangeDenial
def execute(self):
data = {'command': Commands.ECHO.value, 'data_length': len(self._data)}
message = pk.dumps(data)
self._connection.sendall(message)
response = pk.loads(self._connection.recv(PACKET_SIZE))
if response['ACK'] is True:
self._connection.sendall(bytes(self._data, 'utf-8'))
echoed_data = get_message(self._connection, len(self._data),
PACKET_SIZE).decode('utf-8')
print(f'Echoed data: {echoed_data}')
else:
raise Exception('Server couldn\'t process the command!')
def execute(self):
try:
start_time = perf_counter()
message = compose_message({
'type': Commands.DOWNLOAD.value,
'file_name': self._file_name
})
self._connection.send(message)
response = get_message(self._connection)
self._file_size = response['file_size']
if os.path.exists(self._file_name):
os.remove(self._file_name)
message = compose_message({'start': True})
self._connection.send(message)
self._get_file()
end_time = perf_counter()
if (end_time - start_time) > 0:
bit_rate = self._file_size / float((end_time - start_time))
else:
bit_rate = -1
print(
f'\nFile {self._file_name} has been successfully uploaded by client,'
f' Bit rate: {bit_rate * BIT_RATE_KBPS} kBps')
except FileNotFoundError:
print('Such file doesn\'t exist. Try another one')