TCP Chat

Final Project of AUT Computer Network Course - Dr. Sabaei

A Python-based chat application implementing both TCP and UDP protocols for network communication. The application features a graphical user interface built with tkinter and supports multiple concurrent users.

Features

• Real-time chat functionality using TCP for reliable message delivery
• UDP broadcast for server discovery
• Graphical user interface using tkinter
• Multi-threaded server supporting multiple concurrent connections
• Automatic port assignment for clients
• Broadcast messaging system

Requirements

• Python 3.x
• tkinter (usually comes with Python installation)

Structure

• final_server.py - Server implementation with UDP broadcasting and TCP connection handling
• final_client.py - Client implementation with GUI and network communication logic

How to Run

1. Start the server:

   python final_server.py

2. Start one or more clients:

   python final_client.py

The client will automatically discover the server through UDP broadcast and establish a TCP connection.

Technical Details

• The server uses UDP broadcasting to advertise its presence
• Clients automatically find a free TCP port for communication
• Multi-threaded design allows handling multiple client connections simultaneously
• Reliable message delivery is ensured through TCP protocol
• GUI provides an intuitive interface for sending and receiving messages

License

See the LICENSE file for details.