be sure to call session_start(); in php @ the top of your page and your php
script when doing this .... i had problems with sessions a few years ago
when i moved to ajax controlled logins ...
If you need to test whats happening behind the scenes ... just tell the ajax
request to eval scripts and
<?php echo('<script> ' . $your_user_agt_variable . '</script>'); ?>
upon login / logout to see what its reffering back to the browser ... or
echo it out and cehck the firebug console to see !!
Good luck
Alex
----- Original Message -----
From: "T.J. Crowder" <[email protected]>
To: "Prototype & script.aculo.us" <[email protected]>
Sent: Sunday, February 08, 2009 9:54 AM
Subject: [Proto-Scripty] Re: Problems with AJAX/User agent
Hi Andrew,
It sounds as though you've _assumed_ that Prototype changes the user-
agent string based on the authentication mechanism not working, rather
than actually checking to be sure that it does. It's generally best
to test assumptions before they waste your time.
As far as I can tell, Prototype doesn't change the user agent string.
There's nothing in the code doing it, and I didn't see any difference
in the user agent string in a quick JSP I threw together. You should
be able to easily check that at your end with a PHP equivalent.
If you read through the Prototype Ajax documentation, there are some
_other_ headers that Prototype adds by default[1]. Perhaps the
authentication mechanism is sensitive to other headers having
differences.
[1] http://prototypejs.org/api/ajax/options
HTH,
--
T.J. Crowder
tj / crowder software / com
Independent Software Engineer, consulting services available
On Feb 7, 9:12 pm, Andrew <[email protected]> wrote:
> Hi Everyone,
>
> I'm starting to switch my AJAX requests over to Prototype from ones
> that were custom written using XMLHttpRequest. I just finished doing
> the first one, and thought it was going fine until I noticed it was
> breaking my PHP session-controlled log in system. My log in system
> uses user agent authentication on each page the user requests, so that
> the session can't be hijacked easily (if it detects a change in user
> agents, it automatically logs out). It seems that Prorotype's AJAX
> request may be changing the user agent string, because after the
> request is made, and I navigate to another page, I am logged out of my
> session. I turned off the user agent authentication and the problem
> went away. Is there a way to keep Prototype from changing the user
> agent string?
>
> Thanks in advance for any help.
>
> Andrew
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