# ++
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# ++
# Copyright (c) 2005 David Heinemeier Hansson
#
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# --

# Modified version of the ssl_requirement plugin by DHH
module SslRequirement
  def self.included(controller)
    controller.extend(ClassMethods)
    controller.before_filter(:ensure_proper_protocol)
  end

  module ClassMethods
    # Specifies that the named actions requires an SSL connection to be performed (which is enforced by ensure_proper_protocol).
    def ssl_required(*actions)
      write_inheritable_array(:ssl_required_actions, actions)
    end

    def ssl_allowed(*actions)
      write_inheritable_array(:ssl_allowed_actions, actions)
    end
  end

  protected
    # Returns true if the current action is supposed to run as SSL
    def ssl_required?
      actions = self.class.read_inheritable_attribute(:ssl_required_actions)
      return false if actions.nil?
      actions.empty? || actions.include?(action_name.to_sym)
    end

    def ssl_allowed?
      actions = self.class.read_inheritable_attribute(:ssl_allowed_actions)
      return false if actions.nil?
      actions.empty? || actions.include?(action_name.to_sym)
    end

  private

    def ssl_supported?
      return true if (Rails.env.development? or Rails.env.test?) and Spree::Config[:allow_ssl_in_development_and_test]
      (Rails.env.staging? or Rails.env.production?) and Spree::Config[:allow_ssl_in_production]
    end

    def ensure_proper_protocol
      return true if ssl_allowed?
      if ssl_required? && !request.ssl? && ssl_supported?
        redirect_to "https://" + request.host + request.fullpath
        flash.keep
      elsif request.ssl? && !ssl_required?
        redirect_to "http://" + request.host + request.fullpath
        flash.keep
      end

    end
end