The following is a Python program for a client and server chatroom. The program is to have two added features: (1) a warning should be given from the server side if inappropriate language is used; and (2) if there is worse inappropriate language used, the connection for that client should automatically be gone. Sample code is given below for this; however, it needs to be included within the specific points in the program so that it runs correctly.

Added Features ==================== def checkSanity(message): response = 0 badWord = ("bad", "bad", "bad") worseWords = ("worse", "worst", "awful") while True: input_words = message.lower().split() for word in input_words: if word in badWord: response = 1 #set value 1 if word is in swear for word in input_words: if word in worseWords: remove(conn) # remove the connection if the message goes too far 

#return the corresponding values based on the value of the response. works just like a switch case.

return { 0: "", 1: "watch your language"

}[response]

Use the function call for sanityCheck as shown below in clientthread fucntion of server code.

.........

# Calls broadcast function to send message to all

message_to_send = "<" + addr[0] + "> " + message

response = sanityCheck(message_to_send )

# check the respone from sanityCheck

if response!="" :

conn.send(response)

# check if the connection is closed .If not then broadcast the message

if conn in list_of_clients:

broadcast(message_to_send, conn)

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chatroom Server Code

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import socket def server_program(): # get the hostname host = socket.gethostname() port = 5000 # initiate port no above 1024 server_socket = socket.socket() # get instance # look closely. The bind() function takes tuple as argument server_socket.bind((host, port)) # bind host address and port together # configure how many client the server can listen simultaneously server_socket.listen(2) conn, address = server_socket.accept() # accept new connection print("Connection from: " + str(address)) while True: # receive data stream. it won't accept data packet greater than 1024 bytes data = conn.recv(1024).decode() if not data: # if data is not received break break print("from connected user: " + str(data)) data = input(' -> ') conn.send(data.encode()) # send data to the client conn.close() # close the connection if __name__ == '__main__': server_program() 

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chatroom Client Code

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import socket def client_program(): host = socket.gethostname() # as both code is running on same pc port = 5000 # socket server port number client_socket = socket.socket() # instantiate client_socket.connect((host, port)) # connect to the server message = input(" -> ") # take input while message.lower().strip() != 'bye': client_socket.send(message.encode()) # send message data = client_socket.recv(1024).decode() # receive response print('Received from server: ' + data) # show in terminal message = input(" -> ") # again take input client_socket.close() # close the connection if __name__ == '__main__': client_program()