Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/UserServiceImpl.java @ 4215:c179cd02177d
Logout the current user
Add code to the logout button to remove the current user from the session and to
redirect the browser window to the login page.
Part of flys/issue916 (Logout: "Abmelden" Knopf mit Funktion belegen)
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 23 Oct 2012 09:59:16 +0200 |
parents | e39ac9767a69 |
children |
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package de.intevation.flys.client.server; import javax.servlet.http.HttpSession; import org.w3c.dom.Element; import org.apache.log4j.Logger; import de.intevation.artifacts.common.ArtifactNamespaceContext; import de.intevation.artifacts.httpclient.exceptions.ConnectionException; import de.intevation.flys.client.client.services.UserService; import de.intevation.flys.client.server.auth.UserClient; import de.intevation.flys.client.shared.exceptions.AuthenticationException; import de.intevation.flys.client.shared.model.DefaultUser; import de.intevation.flys.client.shared.model.User; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class UserServiceImpl extends RemoteServiceServlet implements UserService { /** Private logger. */ private static final Logger logger = Logger.getLogger(UserServiceImpl.class); public static final String ERROR_NO_SUCH_USER = "error_no_such_user"; public static final String ERROR_NO_USERS = "error_no_users"; public User getCurrentUser(String locale) throws AuthenticationException { String url = getServletContext().getInitParameter("server-url"); UserClient client = new UserClient(url); de.intevation.flys.client.server.auth.User loginuser = getUser(); if (loginuser == null) { logger.debug("no session user"); throw new AuthenticationException(ERROR_NO_SUCH_USER); } try { Element user = client.findUser(loginuser); if (user != null) { String uuid = user.getAttributeNS( ArtifactNamespaceContext.NAMESPACE_URI, "uuid"); String name = user.getAttributeNS( ArtifactNamespaceContext.NAMESPACE_URI, "name"); return new DefaultUser(uuid, name); } } catch (ConnectionException ce) { logger.error(ce, ce); } logger.error("No users existing in the server."); throw new AuthenticationException(ERROR_NO_USERS); } public void logoutCurrentUser() { HttpSession session = this.getThreadLocalRequest().getSession(); session.setAttribute("user", null); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :