Hi,
I have been trying to implement a simple web shop having shopping carts, e-mail
confirmations and such. So far Turbine has met most of the requirements. However, I
have found one problem that I have difficulties in overcoming.
Majority of the pages (i.e. picking items to the shopping cart bean) require no
authorization. But when checking out, the user should be prompted for user name and
password. I have implemented these by extending TurbineUser with my own class.
However, when logging in, the cart object stored with RunData.setTemp() is lost. I
tried to fix this by extending the LoginAction used in authentication with my own
class, which stores shopping cart in a temporary variable before calling
super.doPerform(), and setting the cart back after the authentication is complete.
This works fine if the authentication was ok, but somehow the cart is lost if
authentication failed.
What could be the cause of this problem and how could I fix it?
The code snippet for extending the user is as follows:
package com.ls.webshop.modules.actions;
import org.apache.turbine.util.TurbineException;
import org.apache.turbine.services.resources.TurbineResources;
import org.apache.turbine.TurbineConstants;
import org.apache.turbine.modules.actions.*;
import org.apache.turbine.util.Log;
import org.apache.turbine.util.RunData;
import org.apache.turbine.services.resources.TurbineResources;
import org.apache.turbine.services.security.TurbineSecurity;
import org.apache.turbine.om.security.User;
import org.apache.turbine.util.security.DataBackendException;
import org.apache.turbine.util.security.TurbineSecurityException;
import com.ls.webshop.util.business.*;
import com.ls.webshop.om.WebshopUser;
/**
* Logins an user, with the meaning of not to clear the session prior to login.
* Default configurations invalidate the session prior to executing doPerform.
* To maintain a shopping cart in login, the login must be done otherwise, and
* the cart should be saved in a temporary variable prior logging in.
*/
public class ExtendedLoginUser extends LoginUser {
public void doPerform(RunData data) throws Exception {
/* Fetch the shopping cart of the user, use a new one if not exists */
WebshopUser user = (WebshopUser) data.getUser();
ShoppingCart cart = (ShoppingCart) user.getTemp("cart",
new ShoppingCart());
System.err.println("Authenticate");
try {
/* Invalidate the current session to provide a means for logging in */
data.removeUserFromSession();
super.doPerform(data);
}
catch(Exception e) {
/* user = (WebshopUser) data.getUser();
user.setTemp("cart", cart);
throw e; */
}
user = (WebshopUser) data.getUser();
if (user != null)
user.setTemp("cart", cart);
System.err.println("Setting next template");
/* Check whether services.webshop.navigation.redirect.key parameter exists. If so,
redirect there */
String nextTemplate =
data.getParameters().get(TurbineResources.getString("services.webshop.navigation.redirect.key"));
if (nextTemplate != null)
data.setScreenTemplate(nextTemplate);
}
}
Regards,
Lauri Svan
[EMAIL PROTECTED]
