Implement honeypot to prevent spam.

Gemfile

@@ -1,3 +1,3 @@
 source 'http://rubygems.org'
-
+gem 'rack-honeypot', github: 'jdutil/rack-honeypot', branch: 'fix_each_error'
 gemspec

lib/spree_contact_us.rb

@@ -1,3 +1,4 @@
+require 'rack/honeypot'
 require 'spree_core'
 require 'spree_contact_us/engine'
 

lib/spree_contact_us/engine.rb

@@ -4,7 +4,11 @@ class Engine < Rails::Engine
 
     config.autoload_paths += %W(#{config.root}/lib)
 
-    initializer "spree.contact_us.preferences", :after => "spree.environment" do |app|
+    initializer "spree_contact_us.add_middleware" do |app|
+      app.middleware.use Rack::Honeypot
+    end
+
+    initializer "spree_contact_us.preferences", :after => "spree.environment" do |app|
       module Spree::ContactUs
         Config = Spree::ContactUsConfiguration.new
       end

spree_contact_us.gemspec

@@ -16,6 +16,7 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
   s.requirements << 'none'
 
+  s.add_dependency 'rack-honeypot'
   s.add_dependency 'spree_core', '~> 1.3.1'
 
   s.add_development_dependency 'capybara',         '~> 1.1'