import socket
import ssl
import os


HOST = "127.0.0.1"
PORT = 8443


if __name__ == "__main__":
    context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
    context.load_cert_chain(os.getenv('CERT_FILE'), os.getenv('CERT_KEYFILE'))
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0) as sock:
        sock.bind((HOST, PORT))
        sock.listen(5)
        with context.wrap_socket(sock, server_side=True) as ssock:
            conn, addr = ssock.accept()
            conn.send('Hello, Tailscale Funnel!'.encode('utf-8'))