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Use custom encrypted cookie for Warden instead of rack:session
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 Dependencies

Development

Runtime

>= 0
 Project Readme

Warden Cookie Session

Gem Version Gem YARD

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Warden Cookie Session is a warden strategy to store auth in custom encrypted cookie(instead of rack:session). The main puprpose to allow store authorization between multiple rails applications, without sharing secret_key_base.

Usage

Setup Warden::CookieSession in initializer and provide wrapper.

Warden::CookieSession.configure do |config|
  config.cookie = Rails.application.secrets['shared_cookie']
  config.secret = Rails.application.secrets['shared_secret']

  config.wrapper = Warden::CookieSession::DefaultWrapper.new(User)
end

Default wrapper just fetch user from model:

module Warden
  module CookieSession
    class DefaultWrapper

      def initialize(klass = nil)
        @klass = klass
      end

      def serialize_record(record)
        # like in https://github.com/plataformatec/devise/blob/master/lib/devise/models/authenticatable.rb
        [record.to_key, record.authenticatable_salt]
      end

      def fetch_record(key)
        @klass.find(key.first)
      end

      def validate_record(record, salt)
        # like in https://github.com/plataformatec/devise/blob/master/lib/devise/models/authenticatable.rb
        record if record && record.authenticatable_salt == salt
      end

    end
  end
end

Advansed Usage

With Warden::CookieSession we can fetch user data remotly ex. from API:

Warden::CookieSession.configure do |config|
  config.cookie = Rails.application.secrets['shared_cookie']
  config.secret = Rails.application.secrets['shared_secret']

    class RemoteWrapper
      def serialize_record(record)
        [record.to_key, record.authenticatable_salt]
      end

      def fetch_record(key)
        FetchRemoteUserAndSalt.run!(key)
      end

      def validate_record(record, salt)
        record if record && record.authenticatable_salt == salt
      end

    end

  config.wrapper = Warden::CookieSession::DefaultWrapper.new(User)
end

Installation

It's a gem:

  gem install warden_cookie_session

There's also the wonders of the Gemfile:

  gem 'warden_cookie_session'