client.py 文件源码

def connect(self):
            "Connect to a host on a given (SSL) port."

            super().connect()

            if self._tunnel_host:
                server_hostname = self._tunnel_host
            else:
                server_hostname = self.host
            sni_hostname = server_hostname if ssl.HAS_SNI else None

            self.sock = self._context.wrap_socket(self.sock,
                                                  server_hostname=sni_hostname)
            if not self._context.check_hostname and self._check_hostname:
                try:
                    ssl.match_hostname(self.sock.getpeercert(), server_hostname)
                except Exception:
                    self.sock.shutdown(socket.SHUT_RDWR)
                    self.sock.close()
                    raise