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Cookie-trouble
Running several UNB forums in one browser
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Reply · Quote rvwsak 2008-01-24, 04:33 #1
Member since Jul 2005 · 107 posts · Location: Norway
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Subject: Cookie-trouble
I have just updated my two forums to 1.6.4 from 1.5.3 and 1.6.3 respectively. The addresses are:

http://www.buf.no/forum/ (native language forum) [tab1]
http://www.buf.no/unb/ (English language forum) [tab2]

In Firefox I view each forum in separate tabs, [tab1] and [tab2]. Also, on both forums I have an admin-user called "oyvind" (maybe this is what causes the hiccup). Now, suppose I log in to [tab1] with user "oyvind". All is fine. I log in to [tab2] with user "oyvind". Still all is fine. But when I return to [tab1] and click "Forum", then the user "oyvind" suddenly shifts to another user! Exactly the same thing occurs if I go back to [tab2] and click "Forum": the system automatically switches to another user in that forum! I tried to delete the relevant cookies in Firefox and to deactivate cookies in the UNB settings. No luck. What fixed it was to ban all cookies from this site in Firefox. But this is not a very elegant solution. Do I simply have to change the name of one of the admin users? Or is there a way to deal with this?

I should mention that both forums use the same database only with different prefixes.
Dixi et liberavi
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Reply · Quote rvwsak 2008-01-24, 15:28 #2
Member since Jul 2005 · 107 posts · Location: Norway
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I guess I just escaped the problem for the time being by logging in as two different users in the two forums. If anyone has an explanation or real solution, I'm all ears.

In the meanwhile I have another question:

The post view counter does not seem to work on new posts, i.e. posts created after this update. All the old post have their view counts intact, but the new posts have no view counts at all. Not yet anyway. The increment on the old posts works OK.
Dixi et liberavi
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Reply · Quote rvwsak 2008-01-24, 22:05 #3
Member since Jul 2005 · 107 posts · Location: Norway
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After some more testing it seems it does count the new posts too (posts made after the software update). However, it only counts views made by users, not by guests. Is this a new feature or is there something wrong with my installation?
Dixi et liberavi
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Reply · Quote Yves (Administrator) 2008-01-24, 23:08 #4
User title: UNB developer & webmaster
Member since Jan 2004 · 3740 posts · Location: Erlangen, Germany
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In reply to post #1
This is a known problem. By default, UNB uses / as the cookie path. So both UNB instances share their cookies. So they also share sessions. And since the logged in user is only determined by its user ID, you can only have a single user ID in both instances. The solution is to specify correct cookie paths in both instances. I see now that this has not been prepared in UNB1 yet. Here's some code from UNB2 that should solve the problem:

  1. // Use the URL path of the calling script as cookie path.
  2. $cookiePath = dirname($_SERVER['PHP_SELF']) . '/';
  3. ini_set('session.cookie_path', $cookiePath);

You can just insert these lines at a very early place in the UNB source code, like at the beginning of forum.php.

Be sure to clear out all cookies from the domain in your browser. They will be in the way when testing the new code.
♪ ...nanananah, all in all we’re just brilliant thieves, nanananah... ♪♬
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Reply · Quote Yves (Administrator) 2008-01-24, 23:09 #5
User title: UNB developer & webmaster
Member since Jan 2004 · 3740 posts · Location: Erlangen, Germany
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In reply to post #2
Please consider opening a new thread for a different topic.

I have no idea what this could come from, with your description.
♪ ...nanananah, all in all we’re just brilliant thieves, nanananah... ♪♬
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Reply · Quote rvwsak 2008-01-24, 23:23 #6
Member since Jul 2005 · 107 posts · Location: Norway
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In reply to post #4
Quote by Yves:
This is a known problem. By default, UNB uses / as the cookie path. So both UNB instances share their cookies. So they also share sessions. And since the logged in user is only determined by its user ID, you can only have a single user ID in both instances. The solution is to specify correct cookie paths in both instances. I see now that this has not been prepared in UNB1 yet. Here's some code from UNB2 that should solve the problem:

  1. // Use the URL path of the calling script as cookie path.
  2. $cookiePath = dirname($_SERVER['PHP_SELF']) . '/';
  3. ini_set('session.cookie_path', $cookiePath);

You can just insert these lines at a very early place in the UNB source code, like at the beginning of forum.php.
Be sure to clear out all cookies from the domain in your browser. They will be in the way when testing the new code.

Works like a charm. Thanks!
Dixi et liberavi
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Reply · Quote rvwsak 2008-01-24, 23:24 #7
Member since Jul 2005 · 107 posts · Location: Norway
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In reply to post #5
Quote by Yves:
Please consider opening a new thread for a different topic.
I have no idea what this could come from, with your description.

OK. I'll do some more experimenting and open a new thread later if necessary.
Dixi et liberavi
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Reply · Quote Yves (Administrator) 2008-02-02, 18:00 #8
User title: UNB developer & webmaster
Member since Jan 2004 · 3740 posts · Location: Erlangen, Germany
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In reply to post #6
This has been added as a new config option with today's version. (Whenever today's version will be released next.) See the change log.
♪ ...nanananah, all in all we’re just brilliant thieves, nanananah... ♪♬
Reply · Quote Alan W (Guest) 2008-05-10, 19:43 #9
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Thanks for the fix, I've been having some users log in as other users too and tried the cookie code. Unfortunately users cannot log out now, is there any code I can use to destroy the cookies?
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Reply · Quote Yves (Administrator) 2008-05-10, 20:17 #10
User title: UNB developer & webmaster
Member since Jan 2004 · 3740 posts · Location: Erlangen, Germany
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That's a problem because your users now have two different cookies and only one of them is used (set and deleted) by the code but both can be read. You'd need to tell your users to delete all cookies for your domain to log out again.
♪ ...nanananah, all in all we’re just brilliant thieves, nanananah... ♪♬
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