get_file example

gistfile1.rb

      def getapk 
            if params[:tx] && !params[:tx].blank?
              @tx = params[:tx]
              # c = Curl::Easy.http_post('https://www.sandbox.paypal.com/cgi-bin/webscr',
              #               Curl::PostField.content('cmd', '_notify-synch'),
              #               Curl::PostField.content('tx', @tx),
              #               Curl::PostField.content('at', 'RQHRFNo3aCvvifPUqR97zWyfngx4RkYv7CI4hQknF2YQH4CjPN07qAaRvdi'),
              #               Curl::PostField.content('submit', 'PDT')) 
              #               c.verbose = 'True'
              #               c.perform
              #               result = c.body_str
              #               puts result
              #               @results=result
                 # Test Result String        
                  result = "SUCCESS mc_gross=9.99 protection_eligibility=Ineligible payer_id=EW4ET4DZFZV8A tax=0.00 payment_date=08%3A39%3A23+Oct+12%2C+2011+PDT payment_status=Pending charset=windows-1252 first_name=Test mc_fee=0.59 custom= payer_status=verified business=ross_1318278699_biz%40triplingo.com quantity=1 payer_email=ross_1318278753_per%40triplingo.com txn_id=5F068167W5498491A payment_type=instant btn_id=2146086 last_name=User receiver_email=ross_1318278699_biz%40triplingo.com payment_fee=0.59 shipping_discount=0.00 insurance_amount=0.00 receiver_id=4MP78DRFQW2DN pending_reason=paymentreview txn_type=web_accept item_name=TripLingo+France+French discount=0.00 mc_currency=USD item_number=FRENFRA residence_country=US handling_amount=0.00 shipping_method=Default transaction_subject=TripLingo+France+French payment_gross=9.99 shipping=0.00"
                  result_b = result.split
                  puts result_b
                  paypalResponse = result_b[0]
                  if paypalResponse == 'SUCCESS'  
                    firstName = result_b[8].split('=')
                    txId = result_b[15].split('=')
                    itemNumber = result_b[29].split('=')
                    itemName = result_b[33].split('=')
                    @email = result_b[14].split('=')
                    @name = firstName[1]
                    @txId = txId[1]
                    @itemNumber = itemNumber[1]
                    @itemName = itemName[1].gsub("+", " ")
                    requestedfile = Rails.root.join('downloads') + (itemNumber[1] + '.apkz')
                    if File.exists?(requestedfile)
                      send_file(requestedfile, :type=>"application/zip", :disposition => "inline")
                    else
                      flash[:error] = 'Missing APK file'
                      @name = 'Missing APK file'
                      redirect_to '/pperror'
                    end
                    UserMailer.purchase_email(@name, @email, @txId, @itemName, @code).deliver
                  else
                    flash[:error] =  result
                    redirect_to '/pperror'
                    return
                  end
            else
              flash[:error] = 'no Transaction ID'
              @name = 'Missing transaction ID'
              redirect_to '/pperror'
              return
            end
          end