connection.py 文件源码

def connect(self, ip, port):
        """
        Estabilishes a connection to IP:port.

        :param ip: the IP to connect to.
        :param port: the port to connect to.
        """
        try:
            self.conn.connect(ip, port)
        except OSError as e:
            if e.errno == errno.EISCONN:
                return  # Already connected, no need to re-set everything up
            else:
                raise

        self._send_counter = 0
        if self._mode == ConnectionMode.TCP_ABRIDGED:
            self.conn.write(b'\xef')
        elif self._mode == ConnectionMode.TCP_INTERMEDIATE:
            self.conn.write(b'\xee\xee\xee\xee')
        elif self._mode == ConnectionMode.TCP_OBFUSCATED:
            self._setup_obfuscation()