[kronolith] Call to a member function addException() on a non-object

[Michael Menge]

Hi,

one of our users has tries to accept and add an event received via  
iCal invitation mail.
This action failed with the following error in Kronolith 4.2.11

call to a member function addException() on a non-object in  
/var/www/html/horde/kronolith/lib/Event.php on line 1447, referer:  
https://webmail.uni-tuebingen.de/imp/dynamic.php?page=mailbox

Google found the following thread that might be related in some parts,  
but I couldn't find a bug-ticket
http://lists.horde.org/archives/horde/Week-of-Mon-20150727/054580.html


Digging into this I suspect Kronolith failed to Pares the  
RECURRENCE-ID and could not set originaldt.

Quoting /var/www/html/horde/kronolith/lib/Event.php line 1440:1441
> $recurrenceid = $vEvent->getAttribute('RECURRENCE-ID');
> $originaldt = new Horde_Date($recurrenceid);

The iCal attachment contains the following RECURRENCE-ID:

RECURRENCE-ID;TZID=W. Europe Standard Time:20160503T140000

So I have the following questions:

1. is "W. Europe Standard Time" a valid value for TZID? I suspect not.
2. which package/file/RFC contains the known/allowed TZID
3. is there a work around?
4. should Kronolith catch this error?

Regards

    Michael Menge


--------------------------------------------------------------------------------
M.Menge                                Tel.: (49) 7071/29-70316
Universität Tübingen                   Fax.: (49) 7071/29-5912
Zentrum für Datenverarbeitung          mail:  
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