Thanks for your help. I'll look into this. Hugo Palma wrote:
I implemented the exact same integration a few weeks ago, also using T5. My approach was to use the Dispatcher concept.All you have to do is implement a class that implements the Dispatcher interface. That dispatcher will get executed in the Tapestry request handling lifecycle. My implementation is something like this: public class PayPalOrderNotificationDispatcher implements Dispatcher { public static final String PATH_PREFIX = "/notifyorder"; public PayPalOrderNotificationDispatcher(/* you can inject any Tapestry IOC service here that implements the validation logic */) { } public boolean dispatch(Request request, Response response) throws IOException { String path = request.getPath(); if (!path.startsWith(PATH_PREFIX)) return false; // validate order // send confirmation back to paypal return true; } So now you have a Dispatcher that gets executed when someone access the url http://myserver/mycontext/notifyorder. So just give that URL to paypal and your set. Baofeng Yu wrote:Hi, I would like to integrate Paypal with a T5 application. Previously with JSP, I had a paypal IPN handler jsp page. After user makes a payment, Paypal posts the payment data to my jsp page and my script checks the data and process it. The jsp script runs in the background and is separate from the web flow. Now in T5, what's the best way to implement this? Should this be done by adding an empty page with an onActive event and put the code there? The following is the sample code for the ipn handler: |<%@ page import="java.util.*" %> <%@ page import="java.net.*" %> <%@ page import="java.io.*" %> <% // read post from PayPal system and add 'cmd' Enumeration en = request.getParameterNames(); String str = "cmd=_notify-validate"; while(en.hasMoreElements()){ String paramName = (String)en.nextElement(); String paramValue = request.getParameter(paramName); str = str + "&" + paramName + "=" + URLEncoder.encode(paramValue); } // post back to PayPal system to validate // NOTE: change http: to https: in the following URL to verify using SSL (for increased security). // using HTTPS requires either Java 1.4 or greater, or Java Secure Socket Extension (JSSE) // and configured for older versions. URL u = new URL("http://www.paypal.com/cgi-bin/webscr";); URLConnection uc = u.openConnection(); uc.setDoOutput(true); uc.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); PrintWriter pw = new PrintWriter(uc.getOutputStream()); pw.println(str); pw.close(); BufferedReader in = new BufferedReader( new InputStreamReader(uc.getInputStream())); String res = in.readLine(); in.close(); // assign posted variables to local variables String itemName = request.getParameter("item_name"); String itemNumber = request.getParameter("item_number"); String paymentStatus = request.getParameter("payment_status"); String paymentAmount = request.getParameter("mc_gross"); String paymentCurrency = request.getParameter("mc_currency"); String txnId = request.getParameter("txn_id"); String receiverEmail = request.getParameter("receiver_email"); String payerEmail = request.getParameter("payer_email"); check notification validation if(res.equals("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 } else if(res.equals("INVALID")) { // log for investigation } else { // error } %>| --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
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