ipm

gistfile1.rb

  # process the PayPal <span class="caps">IPN POST</span>
  def paypal_ipn
     if @request.method == :post
       # use the POSTed information to create a call back URL to PayPal
       @query = ‘cmd=_notify-validate’
       @request.params.each_pair {|key, value| @query = @query + ’&’ + key + ’=’
 + value.first if key != ‘register/pay_pal_ipn.html/pay_pal_ipn’ }

       http = Net::HTTP.start(PAYPAL_URL, 80)
       response = http.post(’/cgi-bin/webscr’, @query)
       http.finish

       # PayPal values
       item_name = @params[:item_name]
       item_number = @params[:item_number]
       payment_status = @params[:payment_status]
       payment_amount = @params[:mc_gross]
       payment_currency = @params[:mc_currency]
       txn_id = @params[:txn_id]
       receiver_email = @params[:receiver_email]
       payer_email = @params[:payer_email]
       if response
          if response.body.chomp  ‘VERIFIED’
             # check the payment status
             if payment_status  ‘Completed’
                # check to see if the txn_id already exists
           # your logic here
          end
       end
     else
        # <span class="caps">GET</span> request, wtf
        @text = ‘I do not speak GET’
     end
  rescue Net::HTTPError
     @text = ‘HTTP error’
  end