Liferay : How to show a Configured Page once User Enters Valid Credentials - liferay-6

Question

I am using Liferay 6.1 version .
Once a User enters http:localhost , i am displaying my Web Page called "/ravi" which consists of my Custom Portal as shown
I have configured this below properties under portal-ext.properties as shown
auth.forward.by.last.path=true
default.landing.page.path=/web/guest/ravi
Please see the screen shot of my Custom Portlet shown when the users enters http:localhost
Now my requirement is that i need to show another page ("/web/guest/test") if he enters valid crendentails .
In my processAction class , i am doing this way
public class ValidateUser extends MVCPortlet {
public void processAction(ActionRequest request, ActionResponse response) {
String userName = (String) request.getParameter("userName");
String password = (String) request.getParameter("password");
try {
// Contatcs DB and validates the credentials here
// Please let me know how can i show the Configured Page if his credentials are valid ??
}
catch (Exception e) {
}
}
}
Edited Part
Thank you very much for the answer with respect to the default login.events.post .
I am new to Liferay , so i may be doing a mistake here , so please help me if i was doing anything wrong .
I followed these steps :
Created a New Portlet named "MyLogon" Portlet and in its view.jsp created a form with two text fields (Login and Password ) and a submit button .
On click of that Submit Button , i was actually calling my processAction Method and making a DB call to validate Users from mysql db .
2.Then i created a page inside /web/guest/ravi and added this "MyLogon" Portlet to this new page /web/guest/ravi
Then configured this below properties under portal-ext.properties
auth.forward.by.last.path=true
default.landing.page.path=/web/guest/ravi
This is what i did .
And when entering http:localhost:8080 , it displayed taht page .
Please tell me if i am doing anything wrong
Edited 2nd Part
I have understood some part of your answer and i have these questions .
Could you please help
I need to validate Users based on the Data present inside my DataBase , so for this i need to do the below thins .
I need to create a Hook , to overdide this property
login.events.pre=com.LoginAction
public class LoginAction extends Action {
public void run(HttpServletRequest req, HttpServletResponse res) {
// Here i need to make a Database call to validate User Credentials and then do redirect him to the page i wanted ??
}
}

Answer 1

You need to create a Hook and override the default login.events.post
Below code for your reference,
public class LandingPageAction extends Action {
public LandingPageAction()
{
}
public void run(HttpServletRequest request, HttpServletResponse response) throws ActionException
{
try
{
doRun(request, response);
}
catch(Exception e)
{
throw new ActionException(e);
}
}
protected void doRun(HttpServletRequest request, HttpServletResponse response) throws Exception
{
String homeRedirect="/web/guest/test";
LastPath lastPath = new LastPath(StringPool.BLANK, homeRedirect);
session.setAttribute("LAST_PATH", lastPath);
}
}
There are few things which I don't understand here. You are hitting localhost:8080, but screen shot shows that you are already logged in (there is a SignOut link and user Ravi Kiran is already logged in), but still there is a login page shown.
default.landing.page.path comes into picture when you are loggedin user. Are you hitting localhost:8080 or localhost/web/guest/Ravi ? You are not logged in yet, so it should not redirect to /web/guest/Ravi.
You could reuse the default Authentication code in Liferay. Not sure why you are taking User credentials from request parameters and making DB call yourself.
Edited as per the update in the question
1. The default Login Page of Liferay (the one that you see when you freshly download and hit localhost:8080 comes from this path
..\default\deploy\ROOT.war\html\portlet\login.
There is a login.jsp in this path which you can edit and give your own look and feel.
You can find below entry in this login.jsp page
<portlet:param name="struts_action" value="/login/login" />
This has a corresponding entry in ../deploy/ROOT.war/WEB-INF/struts-config.xml
<action path="/login/login" type="com.liferay.portlet.login.action.LoginAction">
<forward name="portlet.login.login" path="portlet.login.login" />
</action>
You can open up the source code and look into com.liferay.portlet.login.action.LoginAction method.
This performs a basic Authentication as per your passwords.encryption.algorithm= and passwords.digest.encoding=
configuration in portal-ext.properties file. LoginAction will perform basic authentication and will redirect all
users as per path mentioned in default.landing.page.path=
If you want (some) Users to redirect to (some) other path(conditionally), you can use the code I have mentioned above by writing a Hook.
2. Once authenticated, you can login and create a Page (in your case its "ravi"). You can add your custom Portlet to this Page. You should not write a cutom portlet which will do authentication once you are already logged in