是否有 Ruby on Rails 的 PayPal IPN 代码示例？

Question

有几种语言的官方代码示例，但找不到适用于 Rails 的代码示例。

Answer 1

有一些 PayPal gem，其中至少一个 (paypal-sdk-rest) 包含 PayPal::SDK::Core::API::IPN.valid? 方法。

使用方法如下：

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

Answer 2

我在这里发布了一个 Rails 控制器的工作代码示例。它进行验证。希望对你有用。

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 和这篇文章来自Tanel Suurhans

Answer 3

IPN 宝石

DWilke 的 Paypal IPN gem 可以在这里找到：

https://github.com/dwilkie/paypal

查看 IPN 模块。代码不错：

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

您可以这样做以获取 ipn 详细信息。结果将显示您是否已验证。您可以从 body 获取所有详细信息

post '/english/ipn' 做

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

body = request.body.string

result = RestClient.post 网址，正文

结束

Answer 5

PayPal 的 Ruby Merchant SDK 提供了一个 ipn_valid? 布尔方法，让您轻松完成这项工作。

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 6

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

HTH

Answer 7

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