Use UserReturnToStorer in ControllerHelpers::Auth module

By using Spree::UserReturnToStorer one can change
ControllerHelpers::Auth#store_location behavior without
resorting to monkey patching.

core/lib/generators/spree/install/templates/config/initializers/spree.rb.tt

@@ -93,3 +93,11 @@ Spree.user_class = <%= (options[:user_class].blank? ? "Spree::LegacyUser" : opti
 # just uncomment the following code and change it as you need.
 #
 # Spree::Model.whitelisted_ransackable_attributes << 'field'
+
+# Rules for avoiding to store the current path into session for redirects
+# When at least one rule is matched, the request path will not be stored
+# in session.
+# You can add your custom rules by uncommenting this line and changing
+# the class name:
+#
+# Spree::UserReturnToStorer.rules << 'Spree::UrlReturnToStorer::Rules::AuthenticationRule'

core/lib/spree/core/controller_helpers/auth.rb

@@ -50,19 +50,7 @@ def set_guest_token
         end
 
         def store_location
-          # disallow return to login, logout, signup pages
-          authentication_routes = [:spree_signup_path, :spree_login_path, :spree_logout_path]
-          disallowed_urls = []
-          authentication_routes.each do |route|
-            if respond_to?(route)
-              disallowed_urls << send(route)
-            end
-          end
-
-          disallowed_urls.map!{ |url| url[/\/\w+$/] }
-          unless disallowed_urls.include?(request.fullpath)
-            session['spree_user_return_to'] = request.fullpath.gsub('//', '/')
-          end
+          Spree::UserReturnToStorer.new(self).store_location
         end
 
         # proxy method to *possible* spree_current_user method