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Kunena 7.0.5 & Kunena 6.4.11 – Security Updates Released
The Kunena team has announce the arrival of Kunena 7.0.5 [K 7.0.5] in stable which is now available for download as a native Joomla extension for J! 5.4.x/6.0.x. This version addresses most of the issues that were discovered in K 6.2 / K 6.3 / K 6.4 and issues discovered during the last development stages of K 7.0.
The Kunena team is also pleased to announce the eleventh version of Kunena 6.4, a native Joomla extension for Joomla! 5.0, 5.1, 5.2, 5.3, 5.4 and 6.0.
Topics that are moved into this category are generally considered to be closed. Users may want to add additional information but these topics should not be resurrected in order to discuss new problems or unrelated matters.
Solved [Resolved] Posts on forum disappear!
14 years 6 months ago #112085
by Hoffi
Replied by Hoffi on topic Re: Posts on forum disappear!!! ALMOST SOLVED
Hello,
we had the same problem of empty posts in some cases where links are included. We found the post of Ardenlyn here and the "shorten url" feature caused our problem too. Crazy, but the same site copied to my local xampp or a second local machine with lampp worked fine. :huh:
I have analysed this on our live server (FreeBSD) and I found the preg_replace() inside KunenaBBCodeInterpreter::PostProcessing() runs in a PREG_BACKTRACK_LIMIT_ERROR (get by preg_last_error()). So my first idea was to assign the replace result to a local variable and check last error before replacing original text.
But additionally I found the cause of the error: it's the "\3?" inside the search pattern. I have replaced this by "(http(s?)![:\](/irritated.gif ":\")
/\/)?" which doesn't change the meaning but makes preg_replace() happy. 
We are using Joomla! 1.7.3 and Kunena 1.7.1, xampp has PHP 5.3.1 but lampp and our live server have running PHP 5.3.8.
Another little thing inside the same file:
In 1.7.1 you (the developers) have added "index.php" two times to a regular expression. Because you mean the concrete character "." you should escape it. Actually e.g. "index4php" would match too.
(sorry, if this is the wrong place to tell such things)
Best regards,
Hoffi
we had the same problem of empty posts in some cases where links are included. We found the post of Ardenlyn here and the "shorten url" feature caused our problem too. Crazy, but the same site copied to my local xampp or a second local machine with lampp worked fine. :huh:
I have analysed this on our live server (FreeBSD) and I found the preg_replace() inside KunenaBBCodeInterpreter::PostProcessing() runs in a PREG_BACKTRACK_LIMIT_ERROR (get by preg_last_error()). So my first idea was to assign the replace result to a local variable and check last error before replacing original text.
But additionally I found the cause of the error: it's the "\3?" inside the search pattern. I have replaced this by "(http(s?)
/\/)?" which doesn't change the meaning but makes preg_replace() happy. We are using Joomla! 1.7.3 and Kunena 1.7.1, xampp has PHP 5.3.1 but lampp and our live server have running PHP 5.3.8.
Another little thing inside the same file:
In 1.7.1 you (the developers) have added "index.php" two times to a regular expression. Because you mean the concrete character "." you should escape it. Actually e.g. "index4php" would match too.
(sorry, if this is the wrong place to tell such things)
Best regards,
Hoffi
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14 years 5 months ago #112446
by Virgo3456
Replied by Virgo3456 on topic Re: Posts on forum disappear!!! ALMOST SOLVED
If you switch off the "shorten url" feature in the Kunena-backend posts will no longer disappear.
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