Skip to main content

Acegi onSuccessfulAuthentication

Some time back, I raised a jira in Acegi, which was turned down. There was no adequate response from spring team. Here I am writing about it, so other spring users (read gurus) may pitch in.
//Edited to short and precise
protected void successfulAuthentication(HttpServletRequest request,
    HttpServletResponse response, Authentication authResult)
    throws IOException {

    SecurityContextHolder.getContext().setAuthentication(authResult);

    String targetUrl = (String) request.getSession()
                 .getAttribute(ACEGI_SECURITY_TARGET_URL_KEY);
    request.getSession().removeAttribute(ACEGI_SECURITY_TARGET_URL_KEY);

    if (alwaysUseDefaultTargetUrl == true) {
        targetUrl = null;
    }

    if (targetUrl == null) {
        targetUrl = request.getContextPath() + defaultTargetUrl;
    }

    // user call back hook
    onSuccessfulAuthentication(request, response, authResult);
    //...
    response.sendRedirect(response.encodeRedirectURL(targetUrl));
}
The Acegi framework's AbstractProcessingFilter provides a callback method onSuccessfulAuthentication for calling user logic after a successful login - generally used for building user login context specific to application. The landing page is *pre-determined* before this call so NO matter what happens in this method, it is redirected to land on the said page. So,  if there is a data or application error while doing it, it is still going to the same page redirected to. The only way to control the flow is by throwing an exception and handling it either by Acegi Exception Handlers or catching that exception in web.xml

My Request was to be able to use a different flow, and send to a different page. In my case, If there was a user that was in our Transaction DB but not in legacy DB, We just come out throw the user an error splash screen. It dint matter much to me. However If you had a business scenario - go to a different controller, build a session different way and send to a different page - How do you do? Have you had this situation? How would you resolve it?

Popular posts from this blog

Using Equinox CommandProvider to make OSGi console interactive.

After fiddling with the First Bundles that "Hello World"-ed upon Activation, You want to see more interactivity in OSGi. Although Using OSGi for an interactive Command Line Application would be like this one would be, well, a callable over-kill, I am going to start with an example and Expand it in later posts. So, please Welcome CommandProvider. CommandProvider is an EQUINOX specific API for extending the Console. This basic Example illustrates how to get a command from console and do something in java and also gets your feet wet on Service Registry package com.so.examples.commandconsole; import org. eclipse .osgi.framework.console .CommandInterpreter; import org.eclipse.osgi.framework.console.CommandProvider; public class DisplayMessageCommand implements CommandProvider { public void _say(CommandInterpreter ci) { ci.print("You said:" + ci.nextArgument()); } @Override public String getHelp() { return "\tsay - repeats what you say\n"; } }

Being a Vegetarian

I am a Proud Vegetarian. I don't eat Meat or Eggs. People say its hard here in US to be one. I beg to differ. The mere fact that I am hail and healthy these 4 years is a definitive proof. Apart from being bullied and trash talked by The Meat-Eaters, There is really nothing that makes this choice of mine any more than a debatable issue at a lunch or dinner. Other things aside, I am writing this blog having watched a PETA Video. Before you click on the play button, I ask you - If you are a vegetarian : Dont watch it. If you are not : Dare to watch it till the end. If you think going veg is just a fashion, think again . Even if you just want to do it for Fashion . Do it. Go Vegetarian. And Feel better asking the waiter for a Vegetarian Entrée in your next lunch.

How to Make a Local (Offline) Repository in Ubuntu / Debian

If you are in a place where you dont have internet (or have a bad one) You want to download .deb packages and install them offline. Each deb file is packaged as a seperate unit but may contain dependencies (recursively). apt-get automagically solves all the dependencies and installs all that are necessary. Manually install deb files one by one resolving each dependency would be tedious. A better approach is to make your own local repository. Before you actually make a repo, You need *all* deb files. You dont practically have to mirror all of the packages from the internet, but enough to resolve all dependencies. Also, You have to make sure, you are getting debs of the correct architecture of your system (i386 etc) # 1. make a dir accessible (atleast by root) sudo mkdir /var/my-local-repo # 2. copy all the deb files to this directory. # 3. make the directory as a sudo dpkg-scanpackages /var/my-local-repo /dev/null > \ /var/my-local-repo/Packages # 4. add the local repo to sour