Lockdown is an authorization system for RubyOnRails (ver >= 2.1).

DSL-based permission rules for easy authorization logic in Rails

A portable, pluggable authentication and authorization service.

PickyGuard is an opinionated authorization library.

Easy role authorization in Rails ported from an unmaintained library

Eagleplatform authorization center client module

Authorization solution with devise and crowd. Helps to generate model, view, controller for user and admin.

JWT-Based authentication and authorization with Zaikio.

A very small authorization library.

Simple wrapper around ExactTarget REST API. It deals with authorization and with coding conventions (CamelCase vs snake_case)

DataMapper models for RESTful Authentication with Role-based Authorization

gatekeeper-rails provides a simple and beaultiful DSL to do authorization checks in rails controllers

Authorization

Authorization for Rails

Rails authorization with controllers's actions.

Simple role based authorization for rails

Authorization dsl to manage permissions in rails.

Helper and class methods for authlogic and declarative authorization, drying up the workflow.

Simple role based authorization for rails

Simple Authorization for Rails