How can I get access to the current user here?

protect.rb

###Watered down version, how do I get current_user in the initialize method? 
module Protect
  extend ActiveSupport::Concern
  module ClassMethods
  #stuff
  end

  module InstanceMethods
    
    def initialize (*args, &block)
      keys = current_user.keys
      
      # Do some authorization checks
      super(*args, &block)
    end
         
  end
end

#####
class MyController < ApplicationController
 
  include Protect
  
end