NYCPHP Meetup

[Gary Mort]

My own experiences with odd logon issues comes down to domains.  
Somewhere in the logon process someone sticks hardcodes the root domain,
for example website is www.mydomain.com and at some point during the
logon process, before the userid has been submitted, it is getting
submitted to mydomain.com[perhaps in the form tag on the logon form].

So the user logs on to mydomain.com and then gets redirected back to
www.mydomain.com
A user logon is...at some point..stored in a cookie on the web server. 
Some identifiable bit of info is stored in the cookie and associated
with the domain which set it[mydomain.com].

Depending on the browser configuration, some browsers will assume that
if they are connected to www.mydomain.com they should also allow access
to the server for mydomain.com cookies.  Others are more paranoid and won't.

So if your having a specific issue with a specific browser, check the
domains.  ESPECIALLY check all the domains in the logon process, not
just the ones being displayed[ie it will drive you crazy if the logon
form displays www.mydomain.com and after logging in your immediately
redirected to another page on www.mydomain.com ... you will not /see/
that the data is being passed through just mydomain.com at some point.]

You can try an extension like Redirect Blocker in firefox,
http://code.kliu.org/noredirect/ and disable javascript to see if that
helps you step through the process[I always attack it at the other end,
debugging the PHP to catch the problem there as I have done it enough
times that it's easy and quick for me]


On 6/8/2011 11:59 AM, Mark Simko wrote:
> Having a problem with logins on a Joomla website. Specifically, users
> using Internet Explorer sometimes cannot log in. Does not happen to
> all users of Internet Explorer, and does not seem to happen to users
> of Firefox. As a matter of fact, on the same computer, I can log in
> with firefox but not IE.
>  
> Here's the problem. When I register as a new user and try to log in, I
> get redirected back to the login screen. This doesn't happen with
> Firefox. Firefox successfully logs me in.  If I enter an incorrect ID
> or password, I do get an error message stating
>
>         * Username and password do not match or you do not have an
>           account yet.
>
>  
> Running Joomla! 1.5.18 on this web site. Cannot upgrade yet because I
> don't know if there have been hacks to the core.
>  
> Site is running JomSocial
> Version: 1.6.287
>  
> Site is using a Core Design login module. I created a standard joomla
> login module and the behavior was the same.
>  
> Has anyone seen this behavior before?
>  
> Mark
>  
>  
>
>
> _______________________________________________
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>
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>
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