Question

JSESSION and cookie problem

Asked by: sgaucho

Hi,

We are facing a problem with session cookies in our website - www.tmn.pt. The problem is that after we login, if we type the url www.tmn.pt again in the address bar, the session is lost. From the cookie history, I noticied that the JSESSIONID changes when you retype the URL.

I figure the problem is with the Webserver - SUN One Webserver and not with the Application Server (Weblogic 8.1)..

Any suggestions for resolving this ?

Thanks,
sg

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Asked On
2007-05-18 at 03:14:53ID22580219
Tags

jsession

Topics

Web Servers

,

Sun Java System Web Server

,

Sun ONE

Participating Experts
3
Points
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Comments
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Answers

 

by: mrcoffee365Posted on 2007-05-19 at 10:14:01ID: 19120863

First, be sure that the old JSESSIONID is gone, not just different.  Mozilla, or Firefox with the WebDeveloper browser extension are best for looking at cookies.  If you must use IE, then get the IE Developer Toolbar.

I looked at your site a little, and you are creating new JSESSIONID cookies at your subdirectories and subsites.  You are also replacing the JSESSIONID when you return to the www.tmn.pt home page after going to www.mytmn.pt pages.

This probably means that you don't completely understand how sessions should be created, and you are creating a new one every time rather than using one if it is already there.

The Web servers don't do mysterious things (usually).  You should search your code for any place where you manipulate the session, because it looks as if you are creating a new session for every return to www.tmn.pt.

 

by: sgauchoPosted on 2007-05-19 at 11:59:24ID: 19121072

Hi,

Actually the JSESSIONID is the same for any of the sub directories except the Mytmn pages (since its a different site).  What I mean is the Jsessionid for the url tmn.pt/portal/site/tmn  doesnt change if the Url is changed to tmn.pt/portal/site/loja or tmn.pt/portal/site/pontos and so on...

But the JSession only Changes when you type the ur www.tmn.pt. I am unable to figure out why this is happening.. From what I can see of the code,  we have an index.jsp that redirects the user to different sites/folder but there is no Set Cookie commands..

What can I do the prevent the webserver from generating a new cookie instead of using the already created one ??

tx

 

by: mrcoffee365Posted on 2007-05-19 at 18:41:23ID: 19121947

You need to debug the cookie setting process from your end.  There isn't anything I can do without seeing the code.

You still have not said which browser you are using to debug this.  

If you have Mozilla, in the Cookie Manager, delete all tmn.pt cookies and mytmn.pt cookies (look under both tmn.pt and www.tmn.pt).  Then in the Cookie Sites tab, delete the references to tmn.pt and mytmn.pt.  Close the browser completely (all instances of the browser, everything).  Then start up the browser.  Change your cookie permissions to not allow cookies except when you ask and give permission.

Go to your site www.tmn.pt  .   You'll see that you get asked twice about setting the JSESSIONID cookie.  Look at the code for the page that displays to see how that page is being processed and what it does with sessions and/or cookies.

If you cannot find the source code that is being executed for that page, then find the developers and have them look at the source code.  Somewhere in there is the code which is setting a cookie.  Post that code here if you still cannot find where cookies are being set and handled.

JSESSIONID is set based on the configuration of your Web server.  Again, you have to read the configuration files for your Web server to find where you specify how sessions are to be handled.

Do you have URL rewriting for your Web server?  That's one place to check in your Web server configuration files for session handling which is resulting in the JSESSIONID cookie being reset with every access to your home page.

If you post more of your source code and your configuration files, we'll be able to help more.

 

by: mrcoffee365Posted on 2007-05-19 at 22:01:55ID: 19122286

On re-reading your posting, it sounds as if you think there's something no one is telling you to fix the session behavior.  It isn't the case here, and I don't think it's the case with your Web server.  I think you've configured a feature, or put code in somewhere, to delete the session, and that's why a new session is established under certain circumstances.

That's why you need to look through your code and your configuration.

As you said, it seems to happen only when a user has gone to the www.mytmn.pt site, then goes to www.tmn.pt .  

I suggest that you check the links to www.mytmn.pt -- they appear to be invalidating the session in www.tmn.pt .  Or, when your pages on www.tmn.pt detect a referrer that is www.mytmn.pt they delete the session.

 

by: ahoffmannPosted on 2007-05-21 at 23:52:50ID: 19132115

> But the JSession only Changes when you type the ur www.tmn.pt. ..
most likely your cookie is set with the path= attribute, use a proxy or a proper browser plugin to inspect the HTTP header (in particular the Set-Cookie header) send by the server.

 

by: Computer101Posted on 2008-01-13 at 20:39:55ID: 20650893

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Computer101
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