Need help implementing some sort of text/string changer in this program that I have so far.in python

What I want to accomplish is when per say I send a message "smile" it will send it to the other chat/person as ":P" instead of smile. or "sad" replace with ":(" and so on just need help with implementing only one of this people

# Tcp Chat server

import socket, select

class Server(object): # List to keep track of socket descriptors CONNECTION_LIST = [] RECV_BUFFER = 4096 # Advisable to keep it as an exponent of 2 PORT = 5000

def __init__(self,socket = None): socket.user_name_dict = {} self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.set_up_connections() self.client_connect()

def set_up_connections(self): # this has no effect, why ? self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) self.server_socket.bind(("0.0.0.0", self.PORT)) self.server_socket.listen(10) # max simultaneous connections.

# Add server socket to the list of readable connections self.CONNECTION_LIST.append(self.server_socket)

# Function to broadcast chat messages to all connected clients def broadcast_data(self, sock, message): # Do not send the message to master socket and the client who has send us the message for socket in self.CONNECTION_LIST: if socket != self.server_socket and socket != sock: # if not send_to_self and sock == socket: return try: socket.send(message) except: # broken socket connection may be, chat client pressed ctrl+c for example socket.close() self.CONNECTION_LIST.remove(socket)

def send_data_to(self, sock, message): try: sock.send(message) except: # broken socket connection may be, chat client pressed ctrl+c for example socket.close() self.CONNECTION_LIST.remove(sock)

def client_connect(self): print "Chat server started on port " + str(self.PORT) while 1: # Get the list sockets which are ready to be read through select read_sockets, write_sockets, error_sockets = select.select(self.CONNECTION_LIST, [], [])

for sock in read_sockets: # New connection if sock == self.server_socket: # Handle the case in which there is a new connection recieved through server_socket self.setup_connection() # Some incoming message from a client else: # Data recieved from client, process it try: # In Windows, sometimes when a TCP program closes abruptly, # a "Connection reset by peer" exception will be thrown data = sock.recv(self.RECV_BUFFER) if data: if self.user_name_dict[sock].username is None: self.set_client_user_name(data, sock) else: self.broadcast_data(sock, " " + '<' + self.user_name_dict[sock].username + '> ' + data)

except: self.broadcast_data(sock, "Client (%s, %s) is offline" % addr) print "Client (%s, %s) is offline" % addr sock.close() self.CONNECTION_LIST.remove(sock) continue

self.server_socket.close()

def set_client_user_name(self, data, sock): self.user_name_dict[sock].username = data.strip() self.send_data_to(sock, data.strip() + ', you are now in the chat room ') self.send_data_to_all_regesterd_clents(sock, data.strip() + ', has joined the cat room ')

def setup_connection(self): sockfd, addr = self.server_socket.accept() self.CONNECTION_LIST.append(sockfd) print "Client (%s, %s) connected" % addr self.send_data_to(sockfd, "please enter a username: ") self.user_name_dict.update({sockfd: Connection(addr)})

def send_data_to_all_regesterd_clents(self, sock, message): for local_soc, connection in self.user_name_dict.iteritems(): if local_soc != sock and connection.username is not None: self.send_data_to(local_soc, message)

class Connection(object): def __init__(self, address): self.address = address self.username = None

if __name__ == "__main__": server = Server()