Keep the current locale after invalidating a session with JSF - jsf

This method invalidates the session and gets the user back to the home page.
public String restart() {
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
return "/index?faces-redirect=true";
}
As a consequence, the locale chosen by the user is forgotten and the app switches back to the default locale of the browser. I want that the locale remains the same even after the session invalidation. The method now looks like:
public String restart() {
Locale currLocale = FacesContext.getCurrentInstance().getExternalContext().getRequestLocale();
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
FacesContext.getCurrentInstance().getViewRoot().setLocale(currLocale);
return "/index?faces-redirect=true";
}
But the locale still switches back to the browser's default. How can I achieve my goal?

Related

xsp.extlib.convstate returns null

I have an Xpage application that uses the extension library where the xsp.extlib.convstate is 'null' for one of three users until they manually refresh page. All three users access application via RDP using Citrix and internet options are the same for all three. Trying to figure out why this would be happening. The application is only on one 9.0.1 server.
From the looks of the source code, if there hasn't been a conversationState initialised yet, the conversationState would not be initialised until either:
after the Render Response phase (in the phase listener: com.ibm.xsp.extlib.component.layout.impl.ApplicationPhaseListener)
#SuppressWarnings("unchecked") // $NON-NLS-1$
public void afterPhase(PhaseEvent event) {
if(event.getPhaseId()==PhaseId.RENDER_RESPONSE) {
// After the render phase, we save the conversion state
ConversationState.saveInSession(event.getFacesContext());
}
}
in the setParent method of the UIApplicationLayout, and this seems to be guarded by a 'isRestoringState' condition, which means I don't think this would run on the first view of a page as there wouldn't be any state to restore.
#Override
public void setParent(UIComponent parent) {
super.setParent(parent);
if( null == parent ){ // removing parent
return;
}
// TODO should move this initialization to initBeforeContents instead
FacesContextEx context = (FacesContextEx) getFacesContext();
if(null != context && !context.isRestoringState()) {
ConversationState cs = ConversationState.get(context, FacesUtil.getViewRoot(this), true);
// Initialize the conversation state
// Set the current navigation path to the UserBean
ApplicationConfiguration conf = findConfiguration();
if(conf!=null) {
String navPath = conf.getNavigationPath();
if(StringUtil.isEmpty(navPath)) {
// If there isn't a navigation path that is defined, the use the default one
if(StringUtil.isEmpty(cs.getNavigationPath())) {
navPath = conf.getDefaultNavigationPath();
}
}
if(StringUtil.isNotEmpty(navPath)) {
cs.setNavigationPath(navPath);
}
}
}
}
So this might explain why it wouldn't be initialised until the 2nd page view.
You could try forcing an initialisation of the ConversationState before you try to use it, maybe in beforePageLoad, by calling one of the com.ibm.xsp.extlib.component.layout.ConversationState's get() methods.
Note the boolean parameter tells the method to create the ConversationState if it does not exist.
I don't do much ServerSide Javascript but I guess this works? The sentiment is correct.
#{javascript: com.ibm.xsp.extlib.component.layout.ConversationState.get(facesContext, true); }
If you are doing it in java then:
ConversationState.get(FacesContext.getInstance(), true);
Does this sound like an explanation of why you are seeing your behaviour?

Send parameter via action bean method

I read this but my method is a logout where I need to invalidate session so I cannot set bean property.
I just want to pass user language.
public String logout() {
Locale locale = userProfile.getLocale();
// invalidate http session
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
return "logout";
//I need something like
//return "logout?locale="+locale.getLanguage();
}
EDIT: solved returning this:
return "/logout.xhtml?faces-redirect=true&include-view-params=true&locale=" + locale.getLanguage();

JSF navigating to a different view programatically

My application has a save and retrieve function. I have the save/retrieve working in that the objects are saved to a database and retrieved correctly. However, in my retrieve landing page, depending on the state of the saved application, I either want to validate some details with the user, or silently navigate to the last accessed view. The latter is where I'm having trouble.
We're using spring beans and in my SaveAndRetrieve page bean I have:
#PostConstruct
public void initialise() {
caseNotFound = false;
caseReference = saveAndRetrieveActionHandler.getRequestedCaseReference();
LOGGER.debug("Retrieve initialise. Case ref is {}", caseReference);
if (caseReference != null) {
try {
saveAndRetrieveActionHandler.retrieveApplicationByCaseRef();
LOGGER.debug("Retrieve initialise - case found");
final NavigationOutcome outcome = saveAndRetrieveActionHandler.getLastAccessedView();
if (outcome.getApplicationState() == ApplicationState.QUOTE) {
LOGGER.info("Quote retrieved, navigating to view");
// HERE IS WHERE THE TROUBLE LIES! THIS DOESNT WORK
FacesUtils.setNextViewNavigation(outcome.getViewId());
}
} catch (final FrameworkException fe) {
LOGGER.debug("Exception caught {}", fe);
caseNotFound = true;
}
}
}
outcome is an enumeration containing amongst other things the view I need to navigate to, and the application state (another enumeration). If applicationState is quote, I want to silently navigate. For all other applicationStates I want to challenge the user to verify them.
My facesUtils method is:
public static void setNextViewNavigation(final String p_lastAccessedViewId) {
if (p_lastAccessedViewId != null) {
getCurrentViewRoot().setViewId(p_lastAccessedViewId);
}
}
I've also tried calling this method
public static void navigateToOutcome(final String p_outcome) {
final FacesContext context = getFacesContext();
final NavigationHandler navigationHandler = context.getApplication().getNavigationHandler();
navigationHandler.handleNavigation(context, null, p_outcome);
}
Despite my efforts, I'm seeing the landing page wheras I want to silently navigate to the saved page
Basically I want to abort the current lifecycle and reset the viewroot to the saved view. (note I am not saving the component tree itself, just my business objects)
One more piece of information, this is jsf1.2, but with facelets. I cannot use any jsf2 specific functionality, nor can I use any third party JSF extenstions.
Help please!
We solved this by using a ui:include tag with the src attribute being a jsf method that determines the name of the page to navigate to.

State after login with JSF

I am new to JSF and want to create the login part of an app. I have a login page
where I validate logins against a database. That is fine, but I can not figure out the logic
in the following part. A legal user should be redirected to her own profile page and non legal users to a common error page. How do I "transport" the identity from the login to the profile page. All the info I need for a profile page i can get from the database so I kind of want to transport a bean from the login to create a user dependent view. I have looked at tutorials online but could not find examples except for the even simpler example where there is no use of user identity and eg.password and username is simply matched against hard coded values. I think there is some underlying "idea" I don't get because this should ne simple, right ?
Put it in a session scoped managed bean. Here's a basic kickoff example:
#ManagedBean
#SessionScoped
public class ActiveUser {
private User user = new User();
#EJB
private UserService userService;
public String login() {
User found = userService.find(user);
if (found == null) {
setGlobalMessage("Invalid login, try again");
return null;
} else {
user = found;
return "userprofile";
}
}
public void isLoggedIn() {
return user.getId() != null;
}
// ...
}
You can intercept on its presence in a filter.
See also
Prevent accessing restricted page without login in Jsf2
Is there any easy way to preprocess and redirect GET requests?

Programmatically control login with Servlet 3.0

I've tested the default security containers in Glassfish 3.0.1 and come to the conclusion that I won't spend any more time on that. Instead I want to control the verification myself. But I need some guidance to get me on right track.
At the moment I have a UserBean that has a login/logout function (see below). And I don't want to use the *j_security_check* built in container, but use core JSF 2.0.
My questions are;
Do I need a ServletFilter to redirect traffic if the user is not logged in (if accessing certain folders)?
How do I store User Pricipals after the user successfully logged in ?
Appreciate any help or link to a example, greetings Chris.
PS. Excuse me for clustering two questions together
#ManagedBean
#SessionScoped
public class UserBean {
private AuthenticateUser authenticateUser;
...
public String login() {
FacesContext context = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
JsfUtil.log("Username : " +authenticateUser.getUserName());
JsfUtil.log("Password : " +authenticateUser.getPassword());
AuthenticateUser authRequest = authenticationFacade.find(authenticateUser);
try {
if(!authRequest.equals(authenticateUser))
return "/loginError";
request.login(authenticateUser.getUserName(), authenticateUser.getPassword());
return "";
} catch(ServletException e){
JsfUtil.addErrorMessage(e, "Incorrect username or password, please try again.");
return "/loginError";
}
...
public String logOut() {
String result = "/index?faces-redirect=true";
FacesContext context = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
try {
request.logout();
} catch (ServletException e) {
JsfUtil.log("Failed to logout user!" +e.getRootCause().toString());
result = "/loginError?faces-redirect=true";
}
return result;
}
When you want to utilize request.login(), then you should really have configured a Realm in the container which represents the user database. But you seem to have replaced the Realm by some AuthenticationFacade. In this case, the request.login() is not useful for you.
You need to just put the user in the session scope and intercept on that. Here's a kickoff example:
#ManagedBean
#SessionScoped
public class UserManager {
#EJB
private UserService userService;
private String username;
private String password;
private User current;
public String login() {
current = userService.find(username, password);
if (current == null) {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("Unknown login, try again"));
return null;
} else {
return "userhome?faces-redirect=true";
}
}
public String logout() {
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
return "index?faces-redirect=true";
}
public boolean isLoggedIn() {
return current != null;
}
// Getters/setters (but do NOT provide a setter for current!)
}
When taking authentication in hands like this, then you definitely need a filter to restrict access. When using container managed security you would typically specify it as <url-pattern> of <security-constraint> for this. But without it, you've to take it in your hands. It's good to know that JSF managed beans are keyed by their managed bean name in any scope.
UserManager userManager = ((HttpServletRequest) request).getSession().getAttribute("userManager");
if (userManager == null || !userManager.isLoggedIn()) {
((HttpServletResponse) response).sendRedirect("login.xhtml");
} else {
chain.doFilter(request, response);
}
Map the above filter on the desired URL-pattern.
When you still want to reconsider using container managed authentication, then the following related answers may be useful:
Java EE Login Page Problem (and Configuring Realm in Glassfish)
Performing user authentication in Java EE / JSF using j_security_check
Be aware if you are if you are using JDBC realm security. There are some fixed/expected words in the fields where you configure the realm in the Glassfish admin console.
In the JAAS Context: filed, you have to type: jdbcRealm. This keyword makes the security container use the expected JDBC realm. If you type something else, it won't work.
Here is good example, done by Gordan Jugo; Netbeans/Glassfish JDBC Security Realm

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