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Networking.py
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Networking.py
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import socket
import ast
class Server(object):
backlog = 5
client = None
def __init__(self, host, port):
self.socket = socket.socket()
self.socket.bind((host, port))
self.socket.listen(self.backlog)
def __del__(self):
self.close()
def accept(self):
# if a client is already connected, disconnect it
if self.client:
self.client.close()
self.client, self.client_addr = self.socket.accept()
return self
def send(self, data):
if not self.client:
raise Exception('Cannot send data, no client is connected')
_send(self.client, data)
return self
def recv(self):
if not self.client:
raise Exception('Cannot receive data, no client is connected')
return _recv(self.client)
def close(self):
if self.client:
self.client.close()
self.client = None
if self.socket:
self.socket.close()
self.socket = None
class Client(object):
socket = None
def __del__(self):
self.close()
def connect(self, host, port):
self.socket = socket.socket()
self.socket.connect((host, port))
return self
def send(self, data):
if not self.socket:
raise Exception('You have to connect first before sending data')
_send(self.socket, data)
return self
def recv(self):
if not self.socket:
raise Exception('You have to connect first before receiving data')
return _recv(self.socket)
def recv_and_close(self):
data = self.recv()
self.close()
return data
def close(self):
if self.socket:
self.socket.close()
self.socket = None
def _send(socket, data):
socket.sendall(str(data).encode('utf8'))
def _recv(socket):
data = socket.recv(4096)
data = ast.literal_eval(data)
return data