rolet

Rolet - Powerful user permission manager

Simple, yet powerful.

Install

npm i rolet

Getting started

// Define role tree (or permission tree)
// _public_ (root)
//   └─regular
//        ├─salesman
//        └─premium
//             └─enterprise

const rolet = new Rolet({ // Root node, default name '_public_'
  actions: [ 'user.signup', 'user.login' ],
  children: {
    regular: { // Inherit _public_ actions
      actions: [ 'user.logout', 'user.upgrade' ],
      children: {
        salesman: { // Inherit _public_, regular actions
          actions: [ 'salesman.action1', 'salesman.action2' ],
        },
        premium: {  // Inherit _public_, regular actions
          actions: [ 'premium.action1', 'premium.action2' ],
          children: {
            enterprise: {  // Inherit _public_, regular, premium actions
              actions: [ 'enterprise.action1', 'enterprise.action2' ],
            },
          },
        },
      },
    },
  },
})

rolet.can('_public_', 'user.signup') // true
rolet.can('_public_', 'user.login') // true
rolet.can('_public_', 'user.logout') // false

rolet.can('regular', 'user.signup') // true
rolet.can('regular', 'user.login') // true
rolet.can('regular', 'user.logout') // true
rolet.can('regular', 'premium.action1') // false

rolet.can('premium', 'premium.action1') // true
rolet.can('premium', 'premium.action2') // true
rolet.can('regular', 'premium.action1') // false
rolet.can('salesman', 'premium.action1') // false

rolet.can('enterprise', 'user.logout') // true
rolet.can('enterprise', 'premium.action1') // true
rolet.can('enterprise', 'enterprise.action1') // true
rolet.can('enterprise', 'salesman.action1') // false

Action type

To rolet, there are two kinds of action:

1. Regex, which match action string when can is called.
2. Any other type, string, function, object... which only do an strict compare (===) check.

const enterprise = { action2() {} }

function user_signup() {}

// Define role tree (or permission tree)
// _public_ (root)
//   └─regular
//        ├─salesman
//        └─premium
//             └─enterprise

const rolet: Rolet = new Rolet({
  // Action function, will be compared internally using `===`,
  // Function (or any other type) will not be executed (or changed)
  actions: [ user_signup, 'user.login' ],
  children: {
    regular: {
      actions: [ 'user.logout', 'user.upgrade' ],
      children: {
        salesman: {
          // Action regular expression, which matches actions that start with
          // 'salesman.'
          actions: [ /^salesman\./ ],
        },
        premium: {
          // matches actions that start with 'premium'
          actions: [ /^premium/ ],
          children: {
            enterprise: {
              actions: [
                // 'enterprise.action1'
                'enterprise.action1',
                // Another action function
                enterprise.action2,
                // All actions starts with 'enterprise.read_'
                /^enterprise\.read_/,
                // All actions like 'enterprise.delete_{xxx}_log'
                /^enterprise\.delete_\w+_log$/,
              ],
            },
          },
        },
      },
    },
  },
})

rolet.can('_public_', user_signup) // true
rolet.can('regular', user_signup) // true
rolet.can('regular', 'premium.action1') // false

rolet.can('premium', 'premium.action1') // true
rolet.can('premium', 'premium_extend.action2') // true
rolet.can('premium', 'premium_special_action') // true
rolet.can('regular', 'premium.action1') // false
rolet.can('regular', 'premium_special_action') // false
rolet.can('salesman', 'premium.action1') // false

rolet.can('salesman', 'salesman.action1') // true
rolet.can('salesman', 'not_exist.action1') // false

rolet.can('enterprise', 'user.logout') // true
rolet.can('enterprise', 'premium.action1') // true
rolet.can('enterprise', 'enterprise.action1') // true
rolet.can('enterprise', enterprise.action2) // true
rolet.can('enterprise', 'enterprise.read_log') // true
rolet.can('enterprise', 'enterprise.delete_log') // false
rolet.can('enterprise', 'enterprise.delete_access_log') // true
rolet.can('enterprise', 'enterprise.update_access_log') // false
rolet.can('enterprise', 'salesman.action1') // false
rolet.can('premium', enterprise.action2) // false

Role Assertion

// Is {roles} a {role}?
rolet.is([ 'admin' ], 'admin') // --> true
rolet.is([ 'admin' ], '_public_') // --> true
rolet.is([ 'admin', 'employee' ], 'employee') // --> true
rolet.is([ 'employee' ], 'admin') // --> false
rolet.is([ '_public_' ], 'admin') // --> false
rolet.is([ '_public_' ], 'employee') // --> false

Test

npm t