I have a PaymentReceipt.aspx page that is the IPN Listener. The page_open code is a copy of the PayPal recommended code. "INVALID" is always returned. There are no reported errors. The listener page opens as expected. However the test site account history log show that all the test transactions were completed succesfully.
I have been troubleshooting this for 3 days.
Here is the Page_Load code in the listener:
//Post back to either sandbox or live
string strSandbox = "https://www.sandbox.paypal.com/cgi-bin/webscr";
//string strLive = "https://www.paypal.com/cgi-bin/webscr";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strSandbox);
//Set values for the request back
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
byte[] param = Request.BinaryRead(HttpContext.Current.Request.ContentLength);
string strRequest = Encoding.ASCII.GetString(param);
strRequest += "&cmd=_notify-validate";
req.ContentLength = strRequest.Length;
//for proxy
//WebProxy proxy = new WebProxy(new Uri("http://urlort#");
//req.Proxy = proxy;
//Send the request to PayPal and get the response
StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
streamOut.Write(strRequest);
streamOut.Close();
StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
string strResponse = streamIn.ReadToEnd();
streamIn.Close();
lblStatus.Text = strResponse; // Always INVALID
-----
Test account log:
Recurring Payments details
Profile information Profile ID I-2H164SPH6JJN Product/service StockPickerMax Subscription Start date Dec 26, 2009 End date Feb 26, 2010 Profile Status
Active|
Merchant information Merchant name David Martin's Test Store Customer service URL Billing terms Next payment date Jan 26, 2010Payment activity Payment type Initial Payment Amount due $0.00 USD Amount received $0.00 USD Payment type Trial Period
Calling page form:
form name="PrePage" runat =server action="https://www.sandbox.paypal.com/cgi-bin/webscr" method
="post"
input type="hidden" name="cmd" value
="_s-xclick"
input type="hidden" name="hosted_button_id" value
="1089338"
input type="hidden" name="on0" value="One month non recurring"
One month non recurring
input type="hidden" name="on1" value="Credit Card info not stored"Credit Card info not storedinput type="text" name="os1" maxlength="60"
input type="image" src="https://www.sandbox.paypal.com/en_US/i/btn/btn_subscribeCC_LG.gif" border="0" name="submit" alt
="PayPal - The safer, easier way to pay online!"
img alt="" border="0" src="https://www.sandbox.paypal.com/en_US/i/scr/pixel.gif" width="1" height
="1"
br
asp:TextBox ID="txtIPNReturn" Text = "abc" runat="server" Width="100px" asp:TextBox
form
form name="PrePage" runat =server action="https://www.sandbox.paypal.com/cgi-bin/webscr" method
="post"
input type="hidden" name="cmd" value
="_s-xclick">
input type="hidden" name="hosted_button_id" value
="1089338"
table
input type="hidden" name="on0" value="One month non recurring"
One month non recurring>
input type="hidden" name="on1" value="Credit Card info not stored"Credit Card info not storedinput type="text" name="os1" maxlength="60"
input type="image" src="https://www.sandbox.paypal.com/en_US/i/btn/btn_subscribeCC_LG.gif" border="0" name="submit" alt
="PayPal - The safer, easier way to pay online!"
img alt="" border="0" src="https://www.sandbox.paypal.com/en_US/i/scr/pixel.gif" width="1" height
="1"
br
asp:TextBox ID="txtIPNReturn" Text = "abc" runat="server" Width="100px" asp:TextBox
form
