/*
* Copyright 2007 Zhang, Zheng <oldbig@gmail.com>
*
* This file is part of ZOJ.
*
* ZOJ is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either revision 3 of the License, or (at your option) any later revision.
*
* ZOJ is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with ZOJ. if not, see
* <http://www.gnu.org/licenses/>.
*/
package cn.edu.zju.acm.onlinejudge.action;
import javax.servlet.http.Cookie;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import cn.edu.zju.acm.onlinejudge.bean.UserPreference;
import cn.edu.zju.acm.onlinejudge.bean.UserProfile;
import cn.edu.zju.acm.onlinejudge.form.LoginForm;
import cn.edu.zju.acm.onlinejudge.persistence.AuthorizationPersistence;
import cn.edu.zju.acm.onlinejudge.persistence.PersistenceException;
import cn.edu.zju.acm.onlinejudge.persistence.UserPersistence;
import cn.edu.zju.acm.onlinejudge.security.UserSecurity;
import cn.edu.zju.acm.onlinejudge.util.PersistenceManager;
/**
* <p>
* Login Action.
* </p>
*
*
* @author Zhang, Zheng
* @version 2.0
*/
public class LoginAction extends BaseAction {
/**
* <p>
* Default constructor.
* </p>
*/
public LoginAction() {
// empty
}
/**
* Login.
*
* <pre>
* </pre>
*
* @param mapping
* action mapping
* @param form
* action form
* @param request
* http servlet request
* @param response
* http servlet response
*
* @return action forward instance
*
* @throws Exception
* any errors happened
*/
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, ContextAdapter context) throws Exception {
LoginForm loginForm = (LoginForm) form;
String forwardPath = context.getRequest().getParameter("forward");
if (loginForm.getHandle() == null) {
context.setAttribute("forward", forwardPath);
return this.handleSuccess(mapping, context, "failure");
}
ActionMessages errors = this.authenticate(loginForm, context);
if (errors.size() > 0) {
context.setAttribute("forward", forwardPath);
return this.handleFailure(mapping, context, errors);
}
if (loginForm.isRememberMe()) {
Cookie ch = new Cookie("oj_handle", loginForm.getHandle());
ch.setMaxAge(3600 * 24 * 30);
ch.setPath("/");
context.getResponse().addCookie(ch);
Cookie cp = new Cookie("oj_password", loginForm.getPassword());
cp.setMaxAge(3600 * 24 * 30);
cp.setPath("/");
context.getResponse().addCookie(cp);
}
if (forwardPath != null) {
return this.handleSuccess(new ActionForward(forwardPath, true), context, forwardPath);
}
return this.handleSuccess(mapping, context, "success");
}
/**
* Authenticate.
*
* @param form
* @return
* @throws Exception
*/
private ActionMessages authenticate(LoginForm form, ContextAdapter context) throws PersistenceException {
context.getRequest().getSession().invalidate();
ActionMessages errors = new ActionMessages();
UserPersistence userPersistence = PersistenceManager.getInstance().getUserPersistence();
UserProfile profile = userPersistence.login(form.getHandle(), form.getPassword());
// no such user
if (profile == null) {
errors.add("password", new ActionMessage("LoginForm.password.invalid"));
return errors;
}
// deactivated
if (!profile.isActive()) {
errors.add("password", new ActionMessage("LoginForm.password.deactivated"));
return errors;
}
AuthorizationPersistence authorizationPersistence =
PersistenceManager.getInstance().getAuthorizationPersistence();
// get UserSecurity
UserSecurity security = authorizationPersistence.getUserSecurity(profile.getId());
// get UserPreference
UserPreference perference = userPersistence.getUserPreference(profile.getId());
context.setUserProfile(profile);
context.setUserSecurity(security);
if(context.getAllCourses().size()!=0) {
security.setHasCourses(true);
} else {
security.setHasCourses(false);
}
context.setUserPreference(perference);
return errors;
}
}