Role Based Access Control Lists

Disclaimer: this is a work in progress based on typeorm which is also a work in progress

TL;DR:

import {Types, Permissions, Resources, Roles, Groups, Principals, entities} from '@any4/acl'
import {createConnection} from 'typeorm'
import 'reflect-metadata'
require('sqlite3')

createConnection({type: 'sqlite', database: ':memory:', entities}).then(async connection => {
  await connection.transaction(em => em.getCustomRepository(Roles)
    .assert('pirate', [{permission: 'drink', type: 'liquor'}, {permission: 'plunder', type: 'booty'}]))
  await connection.transaction(em => em.getCustomRepository(Groups)
    .add('spirit', [{resource: 'rum', type: 'liquor'}]))
  await connection.transaction(em => em.getCustomRepository(Groups)
    .add('cash', [{resource: 'doubloons', type: 'booty'}, {resource: 'reales', type: 'booty'}]))
  await connection.transaction(em => em.getCustomRepository(Principals)
    .grant('jack-sparrow', [{role: 'pirate', group: 'spirit'}, {role: 'pirate', group: 'cash'}]))

  await connection.transaction(em => em.getCustomRepository(Principals)
    .check('jack-sparrow', 'drink', 'liquor', 'rum'))
  await connection.transaction(em => em.getCustomRepository(Principals)
    .check('jack-sparrow', 'plunder', 'booty', 'doubloons'))
}).catch(console.log)

Library for implementing access control lists. There are 5 main domain models supporting authorization: types, resources, groups (which aggregate resources), permissions, and roles (which aggregate permissions). Resources and permissions are each namespaced within a type, so for example, permission 'eat' over type 'veggies' and permission 'eat' over type 'hot-dogs' are in fact two different permissions. For a principal to be allowed a permission over a resource, the principal must be granted a role with this permission over a group which contains this resource. Naturally, if a user is granted eat permission for type veggies he will not be permitted to eat resource cheese-dog of type hot-dogs. You may create types, permissions and resources explicitly or you can assert permissions into roles and add resources into groups and they'll be created if they do not exist