scramblesuit.py 文件源码

def validate_external_mode_cli( cls, args ):
        """
        Assign the given command line arguments to local variables.
        """

        uniformDHSecret = None

        try:
            uniformDHSecret = base64.b32decode(util.sanitiseBase32(
                                     args.uniformDHSecret))
        except (TypeError, AttributeError) as error:
            log.error(error.message)
            raise base.PluggableTransportError("Given password '%s' is not " \
                    "valid Base32!  Run 'generate_password.py' to generate " \
                    "a good password." % args.uniformDHSecret)

        parentalApproval = super(
            ScrambleSuitTransport, cls).validate_external_mode_cli(args)
        if not parentalApproval:
            # XXX not very descriptive nor helpful, but the parent class only
            #     returns a boolean without telling us what's wrong.
            raise base.PluggableTransportError(
                "Pluggable Transport args invalid: %s" % args )

        if uniformDHSecret:
            rawLength = len(uniformDHSecret)
            if rawLength != const.SHARED_SECRET_LENGTH:
                raise base.PluggableTransportError(
                    "The UniformDH password must be %d bytes in length, ",
                    "but %d bytes are given."
                    % (const.SHARED_SECRET_LENGTH, rawLength))
            else:
                cls.uniformDHSecret = uniformDHSecret