metadata.py 文件源码

def json_ready_header_auth(header_auth):
    # type: (MessageHeaderAuthentication) -> Dict[str, Text]
    """Create a JSON-serializable representation of a
    :class:`aws_encryption_sdk.internal.structures.MessageHeaderAuthentication`.

    http://docs.aws.amazon.com/encryption-sdk/latest/developer-guide/message-format.html#header-authentication

    :param header_auth: header auth for which to create a JSON-serializable representation
    :type header_auth: aws_encryption_sdk.internal.structures.MessageHeaderAuthentication
    :rtype: dict
    """
    dict_header_auth = attr.asdict(header_auth)

    for key, value in dict_header_auth.items():
        dict_header_auth[key] = unicode_b64_encode(value)

    return dict_header_auth