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

Create a Rails app with authentication, authorization using Devise and CanCan

simple authorization framework for rails controllers

A simple concern in controller for jwt authorization

model based authorization for new or edited records

NoBrainer mixin for SimpleOAuth2 authorization

A ruby implementation of the Policy Machine authorization formalism.

Authorization for ruby apps using roles concept

Generators for adding simple authorization to nifty-autentication

Simple Security for Padrino API for clients APIS and role authorization

Super simple role based authorization

Rack middleware for simple question and answer authorization.

Role based authorization security engine for your user model and resources.

Tools for handling per-action and per-app Role authorization

An elasticsearch ruby client based on ruby/tire gem with some additions for authorization flow of searchbox.io

A thread-safe minimal authorization helper

Simple module that accepts token and return Authorization for Google

Simple authorization solution

Bouncer brings simple authorization to Sinatra.

Matches resource requests with access managers and asks them to authorize