proxy.py 文件源码

def iam_role_name(api_version):
    if not _supports_iam(api_version):
        return passthrough(request.path)

    role_params_from_ip = roles.get_role_params_from_ip(request.remote_addr)
    if role_params_from_ip['name']:
        return role_params_from_ip['name']
    else:
        log.error('Role name not found; returning 404.')
        return '', 404