This gem will help you to add robokassa support to your app.
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app/controllers
config
lib
spec
.gitignore
Gemfile
LICENSE.txt
README.md
Rakefile
glebtv-robokassa.gemspec

README.md

About this fork

Everything I didn't need is removed. Added signature verification where possible. Fixed a lot of stuff that didn't work for me

SUMMARY

This gem adds robokassa support to your app.

Robokassa is payment system, that provides a single simple interface for payment systems popular in Russia. If you have customers in Russia you can use the gem.

The first thing about this gem, is that it was oribinally desgned for spree commerce. So keep it im mind.

Using the Gem

Add the following line to your app Gemfile

gem 'glebtv-robokassa'

Update your bundle

bundle install

Mount engine in routes: mount Robokassa::Engine => '/robokassa'

Create config/initializers/robokassa.rb with such code

    class RoboCustom < Robokassa::Interface
      def success_implementation(invoice_id, amount, language, custom_options, controller)
        # this is called to show user payment success page
        # Mostly secure to rely on
      end

      def fail_implementation(invoice_id, amount, language, custom_options, controller)
        # this is called to show user payment fail page and unlock inventory stocks for order
        # INSECURE
      end

      def notify_implementation(invoice_id, amount, custom_options, controller)
        # this is called by robokassa server, to actually validate payment
        # Secure.
      end
    end

    Robokassa.interface = RoboCustom.new({
      language: 'ru',
      test_mode: true,
      login: 'robox_login',
      password1: 'asdf1234',
      password2: 'qwer5678',
      token: 'qwer1234' # "robokassa/notify/:token"
    })

In View file:

<% pay_url = Robokassa.interface.init_payment_url(order.id, order.amount, "Order #{order}", '', 'ru', order.user.email, {}) %>
<%= link_to "Оплатить через сервис ROBOX", pay_url %>

In Robokassa account settings set:

Result URL: http://example.com/robokassa/notify
Success URL: http://example.com/robokassa/success
Fail URL: http://example.com/robokassa/fail

To overwrite controller you can do like this:

# coding: utf-8
class RobokassaController < ApplicationController
  
  include Robokassa::Controller
  
  def success
    super
    @payment = Payment.find(params[:InvId])
    redirect_to dashboard_path, notice: "Ваш платеж на сумму #{@payment.amount} руб. успешно принят. Спасибо!"
  end

  def fail
    super
    redirect_to dashboard_path, varning: "Во время принятия платежа возникла ошибка. Мы скоро разберемся!"
  end
end

Testing

In console:

Clone gem

git clone git://github.com/shaggyone/robokassa.git

Install gems and generate a dummy application (It'll be ignored by git):

cd robokassa
bundle install
bundle exec combust

Run specs:

rake spec

Generate a dummy test application

Plans

I plan to add generators for views