class ClientHandler(socketserver.BaseRequestHandler):
"""
This is the ClientHandler class. Everytime a new client connects to the
server, a new ClientHandler object will be created. This class represents
only connected clients, and not the server itself. If you want to write
logic for the server, you must write it outside this class
"""
def handle(self):
"""
This method handles the connection between a client and the server.
"""
self.ip = self.client_address[0]
self.port = self.client_address[1]
self.connection = self.request
# Init
self.messageEncoder = MessageEncoder()
self.messageParser = MessageParser()
# Loop that listens for messages from the client
while True:
received_string = self.connection.recv(4096).decode()
if received_string == "":
self.connection.close()
del connected_clients[self.connection]
break
else:
payload = self.messageParser.parse(received_string)
if 'login' in payload.keys():
if re.match("^[A-Za-z0-9_-]*$", payload['login']):
self.connection.send(
self.messageEncoder.encode_history(
history).encode())
connected_clients[self.connection] = payload['login']
else:
self.connection.send(
self.messageEncoder.encode_error(
"Invalid username").encode())
elif 'logout' in payload.keys():
self.connection.close()
del connected_clients[self.connection]
return
elif 'message' in payload.keys():
message = self.messageEncoder.encode_message(
connected_clients[self.connection], payload['message'])
history.append(message)
for conn in connected_clients.keys():
conn.send(message.encode())
elif 'names' in payload.keys():
self.connection.send(
self.messageEncoder.encode_info(', '.join(
connected_clients.values())).encode())
elif 'help' in payload.keys():
self.connection.send(
self.messageEncoder.encode_info(
"This is the help").encode())
