alpha.portal.webapp.controller.SignupController.java Source code

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Here is the source code for alpha.portal.webapp.controller.SignupController.java

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/**************************************************************************
 * alpha-Portal: A web portal, for managing knowledge-driven 
 * ad-hoc processes, in form of case files.
 * ==============================================
 * Copyright (C) 2011-2012 by 
 *   - Christoph P. Neumann (http://www.chr15t0ph.de)
 *   - and the SWAT 2011 team
 **************************************************************************
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 **************************************************************************
 * $Id$
 *************************************************************************/
package alpha.portal.webapp.controller;

import java.util.Locale;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.appfuse.Constants;
import org.appfuse.model.User;
import org.appfuse.service.RoleManager;
import org.appfuse.service.UserExistsException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailException;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import alpha.portal.webapp.util.RequestUtil;

/**
 * Controller to signup new users.
 * 
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
 */
@Controller
@RequestMapping("/signup*")
public class SignupController extends BaseFormController {

    /** The role manager. */
    private RoleManager roleManager;

    /**
     * Sets the role manager.
     * 
     * @param roleManager
     *            the new role manager
     */
    @Autowired
    public void setRoleManager(final RoleManager roleManager) {
        this.roleManager = roleManager;
    }

    /**
     * Instantiates a new signup controller.
     */
    public SignupController() {
        this.setCancelView("redirect:/login");
        this.setSuccessView("redirect:/mainMenu");
    }

    /**
     * Show form.
     * 
     * @return the user
     */
    @ModelAttribute
    @RequestMapping(method = RequestMethod.GET)
    public User showForm() {
        return new User();
    }

    /**
     * On submit.
     * 
     * @param user
     *            the user
     * @param errors
     *            the errors
     * @param request
     *            the request
     * @param response
     *            the response
     * @return the string
     * @throws Exception
     *             the exception
     */
    @RequestMapping(method = RequestMethod.POST)
    public String onSubmit(final User user, final BindingResult errors, final HttpServletRequest request,
            final HttpServletResponse response) throws Exception {
        if (request.getParameter("cancel") != null)
            return this.getCancelView();

        if (this.log.isDebugEnabled()) {
            this.log.debug("entering 'onSubmit' method...");
        }
        final Locale locale = request.getLocale();

        user.setEnabled(true);

        // Set the default user role on this new user
        user.addRole(this.roleManager.getRole(Constants.USER_ROLE));

        try {
            this.getUserManager().saveUser(user);
        } catch (final AccessDeniedException ade) {
            // thrown by UserSecurityAdvice configured in aop:advisor
            // userManagerSecurity
            this.log.warn(ade.getMessage());
            response.sendError(HttpServletResponse.SC_FORBIDDEN);
            return null;
        } catch (final UserExistsException e) {
            errors.rejectValue("username", "errors.existing.user",
                    new Object[] { user.getUsername(), user.getEmail() }, "duplicate user");

            // redisplay the unencrypted passwords
            user.setPassword(user.getConfirmPassword());
            return "signup";
        }

        this.saveMessage(request, this.getText("user.registered", user.getUsername(), locale));
        request.getSession().setAttribute(Constants.REGISTERED, Boolean.TRUE);

        // log user in automatically
        final UsernamePasswordAuthenticationToken auth = new UsernamePasswordAuthenticationToken(user.getUsername(),
                user.getConfirmPassword(), user.getAuthorities());
        auth.setDetails(user);
        SecurityContextHolder.getContext().setAuthentication(auth);

        // Send user an e-mail
        if (this.log.isDebugEnabled()) {
            this.log.debug("Sending user '" + user.getUsername() + "' an account information e-mail");
        }

        // Send an account information e-mail
        this.message.setSubject(this.getText("signup.email.subject", locale));

        try {
            this.sendUserMessage(user, this.getText("signup.email.message", locale),
                    RequestUtil.getAppURL(request));
        } catch (final MailException me) {
            this.saveError(request, me.getMostSpecificCause().getMessage());
        }

        return this.getSuccessView();
    }
}