Example #1
0
def get_backend_instance(name):
    backend_kwargs = cfg.CONF.auth.backend_kwargs

    if backend_kwargs:
        try:
            kwargs = json.loads(backend_kwargs)
        except ValueError as e:
            raise ValueError('Failed to JSON parse backend settings for backend "%s": %s' %
                             (name, six.text_type(e)))
    else:
        kwargs = {}

    cls = driver_loader.get_backend_driver(namespace=BACKENDS_NAMESPACE, name=name)

    try:
        cls_instance = cls(**kwargs)
    except Exception as e:
        tb_msg = traceback.format_exc()
        class_name = cls.__name__
        msg = ('Failed to instantiate auth backend "%s" (class %s) with backend settings '
               '"%s": %s' % (name, class_name, str(kwargs), six.text_type(e)))
        msg += '\n\n' + tb_msg
        exc_cls = type(e)
        raise exc_cls(msg)

    return cls_instance
Example #2
0
def get_backend_instance(name):
    backend_kwargs = cfg.CONF.auth.backend_kwargs

    if backend_kwargs:
        try:
            kwargs = json.loads(backend_kwargs)
        except ValueError as e:
            raise ValueError(
                'Failed to JSON parse backend settings for backend "%s": %s' %
                (name, six.text_type(e)))
    else:
        kwargs = {}

    cls = driver_loader.get_backend_driver(namespace=BACKENDS_NAMESPACE,
                                           name=name)

    try:
        cls_instance = cls(**kwargs)
    except Exception as e:
        tb_msg = traceback.format_exc()
        class_name = cls.__name__
        msg = (
            'Failed to instantiate auth backend "%s" (class %s) with backend settings '
            '"%s": %s' % (name, class_name, str(kwargs), six.text_type(e)))
        msg += '\n\n' + tb_msg
        exc_cls = type(e)
        raise exc_cls(msg)

    return cls_instance
Example #3
0
def get_backend_driver(name):
    return driver_loader.get_backend_driver(namespace=BACKENDS_NAMESPACE, name=name)
Example #4
0
def get_backend_driver(name):
    return driver_loader.get_backend_driver(namespace=BACKENDS_NAMESPACE, name=name)