app/controllers/ahoy/messages_controller.rb in ahoy_email-0.1.2 vs app/controllers/ahoy/messages_controller.rb in ahoy_email-0.1.3

@@ -5,20 +5,23 @@
     def open
       if @message and !@message.opened_at
         @message.opened_at = Time.now
         @message.save!
       end
+      publish :open
       send_data Base64.decode64("R0lGODlhAQABAPAAAAAAAAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="), type: "image/gif", disposition: "inline"
     end
 
     def click
       if @message and !@message.clicked_at
         @message.clicked_at = Time.now
+        @message.opened_at ||= @message.clicked_at
         @message.save!
       end
       url = params[:url]
       signature = OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new("sha1"), AhoyEmail.secret_token, url)
+      publish :click, url: params[:url]
       if secure_compare(params[:signature], signature)
         redirect_to url
       else
         redirect_to main_app.root_url
       end
@@ -26,9 +29,19 @@
 
     protected
 
     def set_message
       @message = AhoyEmail.message_model.where(token: params[:id]).first
+    end
+
+    def publish(name, event = {})
+      AhoyEmail.subscribers.each do |subscriber|
+        if subscriber.respond_to?(name)
+          event[:message] = @message
+          event[:controller] = self
+          subscriber.send name, event
+        end
+      end
     end
 
     # from https://github.com/rails/rails/blob/master/activesupport/lib/active_support/message_verifier.rb
     # constant-time comparison algorithm to prevent timing attacks
     def secure_compare(a, b)