written with python
To use this app server side must be run at first then users can run client part as many as needed. this program has two modes : talk mode and viewer mode actually these two modes are created to prevent network from congestion that caused app become a little unfamiliar in compare with modern chat applications. Instruction for switching between modes :
1- When you run the client side it first makes a TCP connection to the server.
2- Upon successful connection, the client would print “you are now connected to the server”.
3- Then it asks the user to select the client mode (1- type in your own message, 2- View other user messages) and waits for user selection.
4- If the user select (1),
a. It first let the server knows that it is in mode-1.
b. The client print “type in your text:” and waits for the user to enter a text.
c. When user entered a text,
i. If the entered text is “#view”, the client should switch to mode-2
ii. If the entered text is “#quite”, the client should close the TCP
connection and end the program.
iii. Otherwise, the client should send the text to the server.
d. After sending the text, it should again show, “type in your text:” and wait for
the next text.
e. The server, after it gets the message, it should echo that message to all other
clients who are in mode 2 (View mode). If a client is in mode 1 (text entering
mode) the server should keep the message for that user and send all stored
messages for that user whenever it goes to mode 2 (View mode).
5- If the user select (2),
a. It first let the server knows that it is in mode-2.
b. The client should display the messages that was enter by other users (echoed
by the server to this user)
c. If the user hit “e”, the client should switch from mode-2 to mode-1.
d. If the user hit “q”, the client should end TCP connection and end the program.