Story#107571572 can create SEB bank request

app/assets/stylesheets/registrar/registrar.sass

@@ -32,3 +32,12 @@ h1, h2, h3, h4
 
 .semifooter
   padding: 42px 0 80px 0
+
+
+
+.payment-form
+  text-align: center
+  input[type="submit"]
+    cursor: pointer
+    top: 50%
+    position: absolute

app/controllers/registrar/payments_controller.rb

@@ -1,26 +1,25 @@
 class Registrar::PaymentsController < RegistrarController
+  protect_from_forgery except: :back
+
   skip_authorization_check # actually anyone can pay, no problems at all
   skip_before_action :authenticate_user!, :check_ip, only: [:back]
   before_action :check_bank
 
   # to handle existing model we should
-  # get invoice_id and then get reference_number
+  # get invoice_id and then get number
   # build BankTransaction without connection with right reference number
   # do not connect transaction and invoice
   def pay
     invoice = Invoice.find(params[:invoice_id])
-
-    render text: "You are trying to pay with #{params[:bank]} for #{invoice.reference_no}"
+    @bank_link = BankLink::Request.new(params[:bank], invoice, self)
+    @bank_link.make_transaction
   end
 
-  def cancel
-
-  end
 
   # connect invoice and transaction
   # both back and IPN
   def back
-
+    @bank_link = BankLink::Response.new(params[:bank], params)
   end
 
   private

app/models/bank_link.rb

@@ -0,0 +1,83 @@
+class BankLink
+  module Base
+    def prepend_size(value)
+      value = (value || "").to_s.strip
+      string = ""
+      string << sprintf("%03i", value.size)
+      string << value
+    end
+  end
+
+  class Request
+    include Base
+    include ActionView::Helpers::NumberHelper
+
+    # need controller here in order to handle random ports and domains
+    # I don't want to do it but has to
+    attr_accessor :type, :invoice, :controller
+    def initialize(type, invoice, controller)
+      @type, @invoice, @controller = type, invoice, controller
+    end
+
+    def url
+      ENV["payments_#{type}_url"]
+    end
+
+    def fields
+      @fields ||= (hash = {}
+      hash["VK_SERVICE"]  = "1012"
+      hash["VK_VERSION"]  = "008"
+      hash["VK_SND_ID"]   = ENV["payments_#{type}_seller_account"]
+      hash["VK_STAMP"]    = invoice.number
+      hash["VK_AMOUNT"]   = number_with_precision(invoice.sum_cache, :precision => 2, :separator => ".")
+      hash["VK_CURR"]     = invoice.currency
+      hash["VK_REF"]      = ""
+      hash["VK_MSG"]      = "Order nr. #{invoice.number}"
+      hash["VK_RETURN"]   = controller.registrar_return_payment_with_url(type)
+      hash["VK_CANCEL"]   = controller.registrar_return_payment_with_url(type)
+      hash["VK_DATETIME"] = Time.now.strftime("%Y-%m-%dT%H:%M:%S%z")
+      hash["VK_MAC"]      = calc_mac(hash)
+      hash["VK_ENCODING"] = "UTF-8"
+      hash["VK_LANG"]     = "ENG"
+      hash)
+    end
+
+    def calc_mac(fields)
+      pars = %w(VK_SERVICE VK_VERSION VK_SND_ID VK_STAMP VK_AMOUNT VK_CURR VK_REF VK_MSG VK_RETURN VK_CANCEL VK_DATETIME)
+      data = pars.map{|e| prepend_size(fields[e]) }.join
+
+      sign(data)
+    end
+
+    def make_transaction
+      transaction = BankTransaction.where(description: fields["VK_MSG"]).first_or_initialize(
+          reference_no: invoice.reference_no,
+          currency: invoice.currency,
+      )
+
+      transaction.save!
+    end
+
+    private
+    def sign(data)
+      private_key = OpenSSL::PKey::RSA.new(File.read(ENV["payments_#{type}_seller_private"]))
+
+      signed_data = private_key.sign(OpenSSL::Digest::SHA1.new, data)
+      signed_data = Base64.encode64(signed_data).gsub(/\n|\r/, '')
+      signed_data
+    end
+  end
+
+
+
+
+  class Response
+    attr_accessor :type, :params
+    def initialize(type, params)
+      @type, @params = type, params
+    end
+    def bank_public_key
+      OpenSSL::X509::Certificate.new(certificate).public_key
+    end
+  end
+end

app/views/registrar/payments/pay.html.haml

@@ -0,0 +1,10 @@
+.payment-form
+  = form_tag @bank_link.url, method: :post do
+    - @bank_link.fields.each do |k, v|
+      = hidden_field_tag k, v
+    = submit_tag "Mine maksma"
+
+
+:coffeescript
+  $(document).ready ->
+    $('.payment-form form').submit()

config/routes.rb

@@ -92,9 +92,10 @@ Rails.application.routes.draw do
       end
     end
 
-    get 'pay/:bank'        => 'payments#pay',   as: 'payment_with'
-    get 'pay/:bank/cancel' => 'payments#cancel',as: 'cancel_payment_with'
-    get 'pay/:bank/return' => 'payments#back',  as: 'return_payment_with'
+
+    get  'pay/return/:bank' => 'payments#back',  as: 'return_payment_with'
+    post 'pay/return/:bank' => 'payments#back'
+    get  'pay/go/:bank'     => 'payments#pay',   as: 'payment_with'
   end
 
   # REGISTRANT ROUTES