XML-RPC-TAN handler for hibiscus-server

config.ru

# copy to: config.ru
# install gems: rack rack-rpc xmlrpc byebug awesome_print 
# run: rackup -o 0.0.0.0 -p 3000 config.ru

require 'builder'
require 'rack/rpc'
require 'awesome_print'
require 'byebug'
require 'base64'

class Server < Rack::RPC::Server
  def get_tan(prompt, account_id, tan_type, payload)
    ap [prompt, account_id, tan_type]

    meta, encoded = payload.split(",")
    File.open('tan_request.png', 'wb') { |f| f.write(Base64.decode64(encoded)) }
    puts "File saved to tan_request.png. Use PhotoTanApp and type TAN here:"
    tan = gets.chomp

    return tan
  end

  rpc 'hibiscus.getTan' => :get_tan
end

class MyApplication
  def call(env)
    [200, {"Content-Type" => "text/plain"}, ["Connection successful!"]]
  end
end

use Rack::RPC::Endpoint, Server.new
run MyApplication.new