ActiveMerchantAllpay

This plugin is an active_merchant patch for Allpay(歐付寶) online payment in Taiwan. Now it supports:

• Credit card(信用卡)
• ATM(虛擬ATM)
• Alipay(支付寶)
• CVS(超商繳費)
• BARCODE(超商條碼).

It has been tested on Rails 4.2 successfully.

Add this line to your application's Gemfile:

gem 'active_merchant_allpay', github: 'imgarylai/active_merchant_allpay'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install active_merchant_allpay

You can get Payment API and SPEC in Allpay API. Then create an initializer, like initializers/allpay.rb. Add the following configurations depends on your settings.

# config/environments/development.rb
config.after_initialize do
  ActiveMerchant::Billing::Base.mode = :development
end

# config/environments/production.rb
config.after_initialize do
  ActiveMerchant::Billing::Base.mode = :production
end

# initializers/allpay.rb
OffsitePayments::Integrations::Allpay.setup do |allpay|
  if Rails.env.development?
    # default setting for stage test
    allpay.merchant_id = '2000132'
    allpay.hash_key    = '5294y06JbISpM5x9'
    allpay.hash_iv     = 'v77hoKGq4kWxNNIS'
  else
    # change to yours
    allpay.merchant_id = '7788520'
    allpay.hash_key    = 'adfas123412343j'
    allpay.hash_iv     = '123ddewqerasdfas'
  end
end

Now support three payment methods:

# 1. Credit card
OffsitePayments::Integrations::Allpay::PAYMENT_CREDIT_CARD

# 2. ATM
OffsitePayments::Integrations::Allpay::PAYMENT_ATM

# 3. CVS (convenience store)
OffsitePayments::Integrations::Allpay::PAYMENT_CVS

# 4. Alipay
OffsitePayments::Integrations::Allpay::PAYMENT_ALIPAY

# 5. BARCODE
OffsitePayments::Integrations::Allpay::PAYMENT_BARCODE

Once you’ve configured ActiveMerchantAllpay, you need a checkout form; it looks like:

<% payment_service_for  @order.id,
                        @order.user.email,
                        :service => :allpay,
                        :html    => { :id => 'allpay-atm-form', :method => :post } do |service| %>
  <% service.merchant_trade_no "#{@order.id}T#{Time.zone.now}" %>
  <% service.merchant_trade_date @order.created_at %>
  <% service.total_amount @order.total.to_i %>
  <% service.description @order.id %>
  <% service.item_name @order.id %>
  <% service.choose_payment OffsitePayments::Integrations::Allpay::PAYMENT_ATM %>
  <% service.return_url root_path %>
  <% service.notify_url allpay_atm_return_url %>
  <% service.encrypted_data %>
  <%= submit_tag 'Buy!' %>
<% end %>

Also need a notification action when Allpay service notifies your server; it looks like:

def notify
  notification = OffsitePayments::Integrations::Allpay::Notification.new(request.raw_post)

  order = Order.find_by_number(notification.merchant_trade_no)

  if notification.status && notification.checksum_ok?
    # payment is compeleted
  else
    # payment is failed
  end

  render text: '1|OK', status: 200
end

You don't need to setup merchant_id hash_key hash_iv in initializers/*.rb. setup those data in form helper like below:

<% payment_service_for  @order.id,
                        @order.user.email,
                        :service => :allpay,
                        :html    => { :id => 'allpay-atm-form', :method => :post } do |service| %>
  <% service.merchant_trade_no "#{@order.id}T#{Time.zone.now}" %>
  <% service.merchant_id "YOUR MERCHANT_ID HERE" %>
  <!--
    hash iv and hash key will not show in HTML
    those settings only for encrypted_data
   -->
  <% service.hash_key "YOUR HASH KEY HERE" %>
  <% service.hash_iv "YOUR HASH IV HERE" %>
  <% service.total_amount @order.total.to_i %>
  <% service.description @order.id %>
  <% service.item_name @order.id %>
  <% service.choose_payment OffsitePayments::Integrations::Allpay::PAYMENT_ATM %>
  <% service.return_url root_path %>
  <% service.notify_url allpay_atm_return_url %>
  <% service.encrypted_data %>
  <%= submit_tag 'Buy!' %>
<% end %>

If you get a error "undefined method `payment_service_for`", you can add following configurations to initializers/allpay.rb.

require "offsite_payments/action_view_helper"
ActionView::Base.send(:include, OffsitePayments::ActionViewHelper)

Some allpay error due to CSRF token ("authenticity_token is not in spec"), you can add following scripts to remove them manually.

<script>
$("input[name=utf8]").remove();
$("input[name=authenticity_token]").remove();
</script>

It's caused from payment_service_for helper function when generating by offsite_payments gem (offsite_payments/lib/offsite_payments/action_view_helper.rb)

When upgrading from 0.1.3 and below to any higher versions, you need to make the following changes:

• the notification initialize with raw post string (instead of a hash of params)
• return_url() should be renamed to notify_url() (server-side callback url).

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request