[kronolith] Subscribing to calendar authentication failed workaround

[Andrew Morgan]

On Thu, 5 Apr 2007, Jan Schneider wrote:

> Zitat von Tim Mohlman <timmohlman at gmail.com>:
>
>>
>> Hello,
>>
>> I just did a big CVS update, running HEAD, and since have done a clean CVS
>> check out, and have noticed a particular problem I haven't seen discussed
>> here.  I'm not sure if this is a bug or just a problem with my environment,
>> so I wanted to pass it by here first.
>>
>> Issue:
>>
>> Subscribing to a remote calendar fails at the authentication.
>>
>> Workaround:
>>
>> commenting out //$session_control = 'none'; on line 15 of /kronolith/ics.php
>> v 1.13
>>
>> Once I did that, I could successfully subscribe and authenticate.  What does
>> $session_control do and should I be nervous about connecting this way?
>
> This was a fix for http://bugs.horde.org/ticket/?id=5108. It keeps
> ics.php from starting a session, but unfortunately we need a session
> for authentication to work, so I reverted it.

Unfortunately, without some fix for this it is possible to deadlock the 
session table if you don't use row-level locking.  If there is no sane fix 
for this, maybe it should be specified that row-level locking is required 
for the session table.

 	Andy