What I do is:
within a group of servlets, with each request they check to see if that the
user is validated. If they aren't, it still instantiates the session object
(in my case, a PassCard) which holds a redirection url and then redirects
the user to the security servlet. If the login is valid, it sends then
checks to see if the passcard has a valid redirect..
// The sevice requested first checks to see if the user is approved
HttpSession session = req.getSession(true);
PassCard passCard = (PassCard)session.getValue("neo.passcard");
if ( (passCard == null) || (! passCard.isApproved()) )
{
passCard = new PassCard();
passCard.setLoginRedirect(the url for this service);
passCard.updateCard("neo.passcard",session);
res.sendRedirect(to security servlet);
}
// if not, they're forwarded to the security manager which processes their
login. If the manager approves them, it checks for a loginRedirect...
if (passc.isApproved())
{
if (passc.getLoginRedirect() != null)
{
res.sendRedirect( passc.getLoginRedirect() );
passc.setLoginRedirect( null );
}
}
Anyways, I've snipped a lot of code from the original. But that's the gist
of it.
Cheers.
-mark
-----Original Message-----
From: Brian Moynihan [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 04, 2000 6:42 AM
To: [EMAIL PROTECTED]
Subject: Saving URL's for redirection
Hi All,
I need some help with this problem.
1. I want to click on a hyperlink, and redirect that page to a Security
Servlet, which verifies if the user is logged in or not. This piece is done.
2. Within the security servlet, I want to save the original url of the
hyperlink, and if the user is verified, redirect to that url.
So far this is the code I have from the servlet:
*******************************************************************
// DOES THE SESSION INDICATE THIS USER IS ALREADY LOGGED IN?
Object loggedIn = session.getValue("logon.isDone"); // MARKER OBJECT
if (loggedIn == null)
{
// NO logon.isDone, THIS USER IS NOT LOGGED IN
// SAVE THE REQUEST URL AS THE TRUE TARGET AND REDIRECT TO THE LOGIN
PAGE
session.putValue("OriginalTarget",
HttpUtils.getRequestURL(req).toString());
res.sendRedirect(req.getScheme() + "://" + req.getServerName() + ":" +
req.getServerPort() + "/Login.html");
return;
}
else
{
// Try redirecting the client to the page he first tried to access
try
{
String target = (String)session.getValue("OriginalTarget");
if (target != null)
res.sendRedirect(target);
else
out.println("No target specified");
return;
}
catch (Exception ignored) { }
}
*******************************************************************
Thanks for any help,
Brian.
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