local.py 文件源码

def main():
    utils.check_python()

    # fix py2exe
    if hasattr(sys, "frozen") and sys.frozen in \
            ("windows_exe", "console_exe"):
        p = os.path.dirname(os.path.abspath(sys.executable))
        os.chdir(p)

    config = utils.get_config(True)

    daemon.daemon_exec(config)

    utils.print_shadowsocks()

    encrypt.try_cipher(config['password'], config['method'])

    try:
        logging.info("starting local at %s:%d" %
                     (config['local_address'], config['local_port']))

        dns_resolver = asyncdns.DNSResolver()
        tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
        udp_server = udprelay.UDPRelay(config, dns_resolver, True)
        loop = eventloop.EventLoop()
        dns_resolver.add_to_loop(loop)
        tcp_server.add_to_loop(loop)
        udp_server.add_to_loop(loop)

        def handler(signum, _):
            logging.warn('received SIGQUIT, doing graceful shutting down..')
            tcp_server.close(next_tick=True)
            udp_server.close(next_tick=True)
        signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)
        loop.run()
    except (KeyboardInterrupt, IOError, OSError) as e:
        logging.error(e)
        if config['verbose']:
            import traceback
            traceback.print_exc()
        os._exit(1)