Custom Login Portlet : WPS v6.1.5

IBM WebSPhere Portal Server provides a Login Service that you can use to create a custom login portlet. You may want to create a custom login portlet to IBM WebSphere Portal if the base portlet is not in the format you want, or if you want to add additional checking to the login.


CustomLoginPortlet.java
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package com.webspherenotes.services;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.GenericPortlet;
import javax.portlet.PortletException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.security.auth.login.LoginException;

import com.ibm.portal.auth.exceptions.AuthenticationException;
import com.ibm.portal.auth.exceptions.AuthenticationFailedException;
import com.ibm.portal.auth.exceptions.PasswordInvalidException;
import com.ibm.portal.auth.exceptions.PortletLoginDisabledException;
import com.ibm.portal.auth.exceptions.SessionTimeOutException;
import com.ibm.portal.auth.exceptions.SystemLoginException;
import com.ibm.portal.auth.exceptions.UserAlreadyLoggedInException;
import com.ibm.portal.auth.exceptions.UserIDInvalidException;
import com.ibm.portal.portlet.service.PortletServiceHome;
import com.ibm.portal.portlet.service.login.LoginHome;
import com.ibm.portal.portlet.service.login.LoginService;
import com.ibm.websphere.security.WSSecurityException;

public class CustomLoginPortlet extends GenericPortlet{
protected void doView(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
System.out.println("Entering CustomLoginPortlet.doView()");
response.setContentType("text/html");
getPortletContext().getRequestDispatcher("/login.jsp").include(request, response);
System.out.println("Exiting CustomLoginPortlet.doView()");
}

LoginHome loginHome;
public void init() throws PortletException {
System.out.println("Entering CustomLoginPortlet.init()");
try {
InitialContext ctx = new InitialContext();
PortletServiceHome psh = (PortletServiceHome) ctx.lookup(LoginHome.JNDI_NAME);
loginHome = (LoginHome) psh.getPortletService(LoginHome.class);
//loginHome =(LoginHome) ctx.lookup(LoginHome.JNDI_NAME);
} catch (NamingException e) {
e.printStackTrace();
}
System.out.println("Exiting CustomLoginPortlet.init()");
}

public void processAction(ActionRequest request, ActionResponse response)
throws PortletException, IOException {
try {
System.out.println("Entering CustomLoginPortlet.processAction()");
String userId = request.getParameter("USER_NAME");
System.out.println("User Id " + userId);
String password = request.getParameter("PASSWORD");
System.out.println("Password " + password);
LoginService loginService = loginHome.getLoginService(request, response);
System.out.println("Login Service " + loginService);
Map contextMap = new HashMap();
contextMap.put(LoginService.DO_RESUME_SESSION_KEY, new Boolean(false));
loginService.login(userId, password.toCharArray(), contextMap, null);
System.out.println("Exiting CustomLoginPortlet.processAction()");
response.sendRedirect("/wpcert/mydemo");
} catch (PasswordInvalidException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UserIDInvalidException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (AuthenticationFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (AuthenticationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SessionTimeOutException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (PortletLoginDisabledException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UserAlreadyLoggedInException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SystemLoginException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (LoginException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (WSSecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (com.ibm.portal.auth.exceptions.LoginException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
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You can refer : http://wpcertification.blogspot.in/2010/06/custom-login-portlet.html