是否有针对Ruby on Rails的PayPal IPN代码示例？

Question

有几种语言的官方代码示例，但找不到Rails。

Answer 1

我在这里发布了Rails控制器的工作代码示例。它做验证。我希望它会有用。

class PaymentNotificationsController < ApplicationController
  protect_from_forgery :except => [:create] #Otherwise the request from PayPal wouldn't make it to the controller
  def create
    response = validate_IPN_notification(request.raw_post)
    case response
    when "VERIFIED"
      # check that paymentStatus=Completed
      # check that txnId has not been previously processed
      # check that receiverEmail is your Primary PayPal email
      # check that paymentAmount/paymentCurrency are correct
      # process payment
    when "INVALID"
      # log for investigation
    else
      # error
    end
    render :nothing => true
  end 
  protected 
  def validate_IPN_notification(raw)
    live = 'https://ipnpb.paypal.com/cgi-bin'
    sandbox = 'https://ipnpb.sandbox.paypal.com/cgi-bin'
    uri = URI.parse(sandbox + '/webscr?cmd=_notify-validate')
    http = Net::HTTP.new(uri.host, uri.port)
    http.open_timeout = 60
    http.read_timeout = 60
    http.verify_mode = OpenSSL::SSL::VERIFY_PEER
    http.use_ssl = true
    response = http.post(uri.request_uri, raw,
                         'Content-Length' => "#{raw.size}",
                         'User-Agent' => "My custom user agent"
                       ).body
  end
end

代码的灵感来自Railscast 142和Tanel Suurhans的这篇文章

Answer 2

PayPal的Ruby Merchant SDK提供了一个ipn_valid?布尔方法，使您可以轻松实现这一目标。

def notify
  @api = PayPal::SDK::Merchant.new
  if @api.ipn_valid?(request.raw_post)  # return true or false
    # params contains the data
  end
end

https://github.com/paypal/merchant-sdk-ruby/blob/master/samples/IPN-README.md

Answer 3

IPN宝石

DWilke的Paypal IPN宝石可以在这里找到：

https://github.com/dwilkie/paypal

查看IPN模块。这是很好的代码：

https://github.com/dwilkie/paypal/blob/master/lib/paypal/ipn/ipn.rb

针对模拟器进行测试

您可以在此处针对IPN模拟器对其进行测试：

https://developer.paypal.com/webapps/developer/applications/ipn_simulator

我使用ngrok在公共URL上公开localhost：3000，然后将模拟器指向它。

Answer 4

我在我的一个项目中实现了IPN，你的代码看起来很好。那么你面临的问题是什么？

Answer 5

看看ActiveMerchant gem，其中包括多个网关实现，其中包括Paypal's IPN。

HTH

Answer 6

你可以这样做来获取ipn的详细信息。结果将显示您是否已验证。你可以从身体获得所有细节

发布'/ english / ipn'做

url =“https://sandbox.paypal.com/cgi-bin/webscr?cmd=_notify-validate&# {@query}”

body = request.body.string

result = RestClient.post url，body

结束

Answer 7

有一些PayPal宝石，其中至少有一个（paypal-sdk-rest）包含PayPal::SDK::Core::API::IPN.valid?方法。

以下是如何使用它：

class YourController < ApplicationController

  skip_before_action :verify_authenticity_token, only: :your_action

  def your_action
    verified = PayPal::SDK::Core::API::IPN.valid?(request.raw_post)

    if verified
      # Verification passed, do something useful here.
      render nothing: true, status: :ok
    else
      # Verification failed!
      render nothing: true, status: :unprocessable_entity
    end
  end

end