RBAC

(Hierarchical Role Based Access Control)

RBAC is the authorization library for NodeJS.

:tada: We have supported DynamoDB storage now by implementation of dynamoose.

Motivation

I needed hierarchical role based access control for my projects based on ExpressJS. I had one requirement. This structure must be permanently stored in various storages. For example in memory or Mongoose. Because there is a lot of options for storing of data and many of them are asynchronous. I created asynchronous API. Please, if you found any bug or you need custom API, create an issue or pull request.

Documentation

Read more about API in documentation

Support us

Star this project on GitHub.

Install

npm install rbac

Usage

import RBAC from 'rbac'; // ES5 var RBAC = require('rbac').default;
const rbac = new RBAC({
  roles: ['superadmin', 'admin', 'user', 'guest'],
  permissions: {
    user: ['create', 'delete'],
    password: ['change', 'forgot'],
    article: ['create'],
    rbac: ['update']
  },
  grants: {
    guest: ['create_user', 'forgot_password'],
    user: ['change_password'],
    admin: ['user', 'delete_user', 'update_rbac'],
    superadmin: ['admin']
  }
}, function(err, rbacInstance) {
  if (err) {
    throw err;
  }
});

Usage with express

import express from 'express';
import RBAC from 'rbac';
import secure from 'rbac/controllers/express';

// your custom controller for express
function adminController(req, res, next) {
  res.send('Hello admin');
}

const app = express();
const rbac = new RBAC({
  roles: ['admin', 'user']  
}, (err, rbac) => {
  if (err) throw err;

  // setup express routes
  app.use('/admin', secure.hasRole(rbac, 'admin'), adminController);
});

Check permissions

rbac.can('admin', 'create', 'article', (err, can) => {
  if (err) {
    throw err; // process error
  }

  if (can) {
    console.log('Admin is able create article');
  }
});

// or you can use instance of admin role

rbac.getRole('admin', (err, admin) => {
  if (err) {
    throw err; // process error
  }

  if (!admin) {
    return console.log('Role does not exists');
  }

  admin.can('create', 'article', (err2, can) => {
    if (err2) throw err2; // process error

    if (can) {
      console.log('Admin is able create article');    
    }
  });
});

Mongoose user model

Please take a look on plugin mongoose-hrbac

Build documentation

npm run doc

Running Tests

npm run test

Build

npm run build

Credits

• Zlatko Fedor

License

The MIT License (MIT)

Copyright (c) 2016 Zlatko Fedor [email protected]