/*
* $Header: /home/cvs/jakarta-struts/src/example/org/apache/struts/example/SaveRegistrationAction.java,v 1.13 2001/01/07 04:37:05 craigmcc Exp $
* $Revision: 1.13 $
* $Date: 2001/01/07 04:37:05 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.struts.example;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Locale;
import java.util.Hashtable;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.util.MessageResources;
import org.apache.struts.util.PropertyUtils;
/**
* Implementation of <strong>Action</strong> that validates and creates or
* updates the user registration information entered by the user. If a new
* registration is created, the user is also implicitly logged on.
*
* @author Craig R. McClanahan
* @version $Revision: 1.13 $ $Date: 2001/01/07 04:37:05 $
*/
public final class SaveRegistrationAction extends Action {
// --------------------------------------------------------- Public Methods
/**
* Process the specified HTTP request, and create the corresponding HTTP
* response (or forward to another web component that will create it).
* Return an <code>ActionForward</code> instance describing where and how
* control should be forwarded, or <code>null</code> if the response has
* already been completed.
*
* @param mapping The ActionMapping used to select this instance
* @param actionForm The optional ActionForm bean for this request (if any)
* @param request The HTTP request we are processing
* @param response The HTTP response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet exception occurs
*/
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
// Extract attributes and parameters we will need
Locale locale = getLocale(request);
MessageResources messages = getResources();
HttpSession session = request.getSession();
RegistrationForm regform = (RegistrationForm) form;
String action = request.getParameter("action");
if (action == null)
action = "Create";
Hashtable database = (Hashtable)
servlet.getServletContext().getAttribute(Constants.DATABASE_KEY);
if (servlet.getDebug() >= 1)
servlet.log("SaveRegistrationAction: Processing " + action +
" action");
// Is there a currently logged on user (unless creating)?
User user = (User) session.getAttribute(Constants.USER_KEY);
if (!"Create".equals(action) && (user == null)) {
if (servlet.getDebug() >= 1)
servlet.log(" User is not logged on in session "
+ session.getId());
return (servlet.findForward("logon"));
}
// Was this transaction cancelled?
if (isCancelled(request)) {
if (servlet.getDebug() >= 1)
servlet.log(" Transaction '" + action +
"' was cancelled");
if (mapping.getAttribute() != null)
session.removeAttribute(mapping.getAttribute());
session.removeAttribute(Constants.SUBSCRIPTION_KEY);
return (mapping.findForward("success"));
}
// Validate the transactional control token
ActionErrors errors = new ActionErrors();
if (servlet.getDebug() >= 1) {
servlet.log(" Checking transactional control token");
}
if (!isTokenValid(request))
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.transaction.token"));
resetToken(request);
// Validate the request parameters specified by the user
if (servlet.getDebug() >= 1)
servlet.log(" Performing extra validations");
String value = null;
value = regform.getUsername();
if (("Create".equals(action)) &&
(database.get(value) != null))
errors.add("username",
new ActionError("error.username.unique",
regform.getUsername()));
if ("Create".equals(action)) {
value = regform.getPassword();
if ((value == null) || (value.length() <1))
errors.add("password",
new ActionError("error.password.required"));
value = regform.getPassword2();
if ((value == null) || (value.length() < 1))
errors.add("password2",
new ActionError("error.password2.required"));
}
// Report any errors we have discovered back to the original form
if (!errors.empty()) {
saveErrors(request, errors);
saveToken(request);
return (new ActionForward(mapping.getInput()));
}
// Update the user's persistent profile information
if ("Create".equals(action)) {
user = new User();
user.setUsername(regform.getUsername());
}
try {
String oldPassword = user.getPassword();
PropertyUtils.copyProperties(user, regform);
if ((regform.getPassword() == null) ||
(regform.getPassword().length() < 1))
user.setPassword(oldPassword);
} catch (InvocationTargetException e) {
Throwable t = e.getTargetException();
if (t == null)
t = e;
servlet.log("Registration.populate", t);
throw new ServletException("Registration.populate", t);
} catch (Throwable t) {
servlet.log("Registration.populate", t);
throw new ServletException("Subscription.populate", t);
}
// Log the user in if appropriate
if ("Create".equals(action)) {
database.put(user.getUsername(), user);
session.setAttribute(Constants.USER_KEY, user);
if (servlet.getDebug() >= 1)
servlet.log(" User '" + user.getUsername() +
"' logged on in session " + session.getId());
}
// Remove the obsolete form bean
if (mapping.getAttribute() != null) {
if ("request".equals(mapping.getScope()))
request.removeAttribute(mapping.getAttribute());
else
session.removeAttribute(mapping.getAttribute());
}
// Forward control to the specified success URI
if (servlet.getDebug() >= 1)
servlet.log(" Forwarding to success page");
return (mapping.findForward("success"));
}
}