Created
May 1, 2024 20:37
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UDP chat in python
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| import socket | |
| import threading | |
| from typing import List, Tuple | |
| class ChatApp: | |
| def __init__(self, port: int = 5555): | |
| self.clients: List[Tuple[str, int]] = [] # Store client addresses | |
| self.client_socket: socket.socket = None | |
| self.server_socket: socket.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | |
| self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) | |
| self.server_socket.bind(('0.0.0.0', port)) | |
| def start_server(self) -> None: | |
| print(f"Server started on port {self.server_socket.getsockname()[1]}") | |
| receive_thread = threading.Thread(target=self.receive_messages, daemon=True) | |
| receive_thread.start() | |
| def receive_messages(self) -> None: | |
| while True: | |
| data, client_address = self.server_socket.recvfrom(1024) | |
| message = f"{client_address}: {data.decode()}" | |
| print(message) | |
| self.broadcast(message, client_address) | |
| def broadcast(self, message: str, sender_address: Tuple[str, int]) -> None: | |
| for client_address in self.clients: | |
| if client_address != sender_address: | |
| self.server_socket.sendto(message.encode(), client_address) | |
| def start_client(self) -> None: | |
| self.client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | |
| self.client_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) | |
| self.client_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) | |
| receive_thread = threading.Thread(target=self.receive_messages, daemon=True) | |
| receive_thread.start() | |
| self.send_messages() | |
| def send_messages(self) -> None: | |
| while True: | |
| try: | |
| message = input("> ") | |
| self.client_socket.sendto(message.encode(), ('<broadcast>', 5555)) | |
| except Exception as e: | |
| print(f"Error sending message: {e}") | |
| break | |
| if __name__ == "__main__": | |
| app = ChatApp() | |
| server_thread = threading.Thread(target=app.start_server, daemon=True) | |
| server_thread.start() | |
| app.start_client() |
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