openid_id_app_through_env.rb

require 'openid_provider_sinatra'

use Rack::Auth::Basic do |username,password|
  'secret' == password
end

class InjectUser
  def initialize app
    @app=app
  end
  def call env
    login=env['REMOTE_USER']
    if login
      env['rack.current_user'] = OpenStruct.new(:login=>login,:url=>"http://id.example.com/#{login}")
    end
    @app.call env
  end
end

use InjectUser
 
run OpenIDProvider.new :store=>OpenID::Store::Filesystem.new(Dir.pwd + '/openid-store'),
                       :user_key=> 'rack.current_user'