ProxyServer.py 文件源码

def bind_and_activate(self):
        server_listen_ip = self.orig_server_address[0]
        try:
            #???? IPv6
            sock = socket.socket(socket.AF_INET6)
            sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
            # server_address ??????? v6 ? v4 ???'::' ?????????
            if server_listen_ip == '':
                sock.setsockopt(IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
            sock.bind(self.orig_server_address)
        except:
            sock.close()
            sock = socket.socket(socket.AF_INET)
            sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
            sock.bind(self.orig_server_address)
        #????????????
        if sys.platform != 'darwin' and server_listen_ip in ('127.0.0.1', '::1'):
            sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 0)
        #?? nagle's algorithm ??
        sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, True)
        self.socket = sock
        self.server_address = sock.getsockname()
        sock.listen(self.request_queue_size)
        self.is_not_online = False