This is a simple wrapper for JWT so that it can be used from a warden project. It provides a helper for storing the user into the session.

Warden provides a consistent interface for projects, engines, and arbitrary rack applicaitons. The benefit of warden, is that you do not need to know what the host application considers authentication to use it. It also provides a way to store the user in the session etc.

By using Warden::JWT, you can make use of JWT authentication mechanism in your host application, and any rack middleware or applications can just continue using warden without change.

Add this line to your application's Gemfile:

gem 'warden-jwt'

And then execute:

$ bundle

Or install it yourself as:

$ gem install warden-jwt

Initialise the strategy, perhaps through lib/warden_initializer.rb

require 'warden/jwt'
require 'openssl/ssl'

Warden::Strategies.add(:jwt, Warden::JWT::Strategy) do

  # over-ride success! to turn the JWT-response into a user that our app
  # can understand, then call super
  def success!(identity, message=nil)
    user = Identity.find_or_create(:email => identity.email) do |u|
      u.username = identity.email
      u.name = identity.n
      u.plain_password = 'oauthuser'
      u.role = identity.r || 'default'
    end

    super(user, message)
  end
end

You will also need to configure JWT for use. It's essential to define your shared secret here, which is passed in using :secret.

module WardenInitializer
  def self.registered(app)
    app.register Padrino::Warden

    app.set :default_strategies, [:jwt]
    app.set :warden_default_scope, :default

    app.set :warden_config do |config|
      config.scope_defaults(
        :default,
        :strategies => [:jwt],
        :config => {
          # :client_options => { :verify_ssl => OpenSSL::SSL::VERIFY_NONE }
          :secret => ENV['IDENTITY_JWT_SECRET']
        }
      )
      config.serialize_into_session { |user| Identity.into_session(user) }
      config.serialize_from_session { |session| Identity.from_session(session) }
    end
  end
end

You can pass parameters directly to RestClient using :client_options. The example above disables SSL verification, which can be useful during development.

After checking out the repo, run bin/setup to install dependencies. Then, run rake rspec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/dgvz/warden-jwt. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.