问如何在Sails js中创建基于路由的安全策略？

EN

module.exports = function(req, res, next) {
        var originalUrl = req.originalUrl;
        var tokenizedOriginalUrl = originalUrl.split('/');
        if(tokenizedOriginalUrl[0] == 'admin'){
            // do something
            next(null);
        }
        else if(tokenizedOriginalUrl[0] == 'business'){
            // do something
            next(null);
        }
        else if(tokenizedOriginalUrl[0] == 'public'){
            // do something
            next(null);
        }
        else{
            next("Access prohibited.");
        }
};