emocreator / client_server_project_uni

Client_Server_Project_Uni

Socket Programming Chat Application

This is a simple chat application using socket programming in Python. It consists of a server and client that can communicate with each other.

Files

It contains the following files:

• server.py - The server code
• client1.py - The client code

Server

Key features:

• Creates a socket and binds it to localhost and port 12345
• Listens for incoming connections in a loop
• For each client, creates a thread to handle sending and receiving of messages
• Maintains a dictionary of client connections
• Broadcasts messages from one client to all other connected clients
• Closes client sockets gracefully on disconnect

Client

Key features:

• Creates a socket and connects to the server
• Sends messages to the server by taking user input
• Receives messages from the server and prints them
• Cleanly closes socket on exiting

Usage

To run the application:

1. Start the server: python server.py

To start the server:

python server.py

This will start the server on localhost port 12345.

2. Open another terminal and run the client: python client1.py

To start the client:

python client.py

This will connect the client to the running server.

Multiple clients can connect to the same server. Each client connection will be handled in a separate thread.

3. Send messages from the client and observe the communication.
4. Type 'exit' on the client to disconnect gracefully.

Server

The server has the following capabilities:

• Accept connections from multiple clients
• Receive and send messages to each connected client
• Broadcast messages from one client to all others
• Gracefully handle client disconnections

The main components are:

• Socket creation and binding
• Listening for connections in a loop
• Spawning a thread per client to handle all communication
• Cleaning up threads when clients disconnect

Client

The client can:

• Connect to the server
• Send messages to the server
• Receive messages from the server
• Gracefully handle disconnection

The key components are:

• Socket creation and connection
• Threads for sending and receiving messages
• Clean shutdown on disconnect

Message Handling

Some of the key aspects of message handling are:

• Prefixing messages with client name
• Detecting client disconnects by empty recv
• Broadcast by looping through all connected clients

Communication Logic

• The server handles each client connection in a separate thread.
• When a client sends a message, it is broadcast to all other clients.
• The main threads handle sending and receiving messages independently.

This allows building a simple chat application using socket programming concepts.

Let me know if you would like me to explain or expand any part of the README!

This provides a basic template for building more complex chat applications.