Bugs item #1519015, was opened at 2006-07-07 22:23
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Category: core
Group: 1.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Smitti (smitti)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wicket redirects unexpected to expired page
Initial Comment:
Every few pages wicket redirects unexpected to expired
page. During this the session remains active, it is
possible to go to the home page without having to login
again. This behavior is not deterministic (it happens
on links to different pages), but it looks like it is
related to how ajax requests are handled.
The redirect comes from
DefaultRequestTargetResolverStrategy, method
resolveRenderedPage. This method tries to retrieve the
page from the session, but the PageMap in the session
does not contain it, so expired page is returned.
This is reproducible in wicket 1.2 and 1.2.1rc1.
To reproduce (in quickstart project) add to Index.html:
// just to display that page is reloaded
String pid = parameters.getString("pid");
add(new Label("page", "Page: " + String.valueOf(pid)));
// a simple ajax call
Model updateModel = new Model() {
@Override
public Object getObject(Component arg0) { return new
Date().toString();}
};
Label update = new Label("update", updateModel);
update.setOutputMarkupId(true);
update.add(new
AjaxSelfUpdatingTimerBehavior(Duration.milliseconds(1000d)));
// **
add(update);
and add to Index.html
<div wicket:id="page"></div>
<div wicket:id="update"></div>
<script type="text/javascript">
<!--
// small script to avoid clicking buttons
function newPage() {
var page = Math.floor(Math.random() * 100);
window.location =
'http://localhost:8081/quickstart/app?pid=' + page;
}
setTimeout('newPage()', 1000); // **
//-->
</script>
Please set a breakpoint in
DefaultRequestTargetResolverStrategy, method
resolveRenderedPage on line:
return new ExpiredPageClassRequestTarget();
It takes a few page reloads to hit the breakpoint.
Without AjaxSelfUpdatingTimerBehavior, the breakpoint
never gets hit.
(**) - maybe it is relevant, the ajax update time and
page reload time (script timer) are same.
I also notice that getLock(RequestCycle) in
AjaxRequestTarget is never called.
Could this cause some synchronization problems?
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