[horde] ActiveSync -> CalDAV Timezone problems

[Jan Schneider]

Zitat von Jan Schneider <jan at horde.org>:

> Zitat von Steffen <skhorde at smail.inf.fh-bonn-rhein-sieg.de>:
>
>> Hi,
>>
>> with
>> Horde_ActiveSync             2.31.6  stable
>> kronolith                    4.2.15  stable
>>
>> when I create an event with Android ActiveSync, I get an entry with  
>> event_timezone = 'CET' in the database; the GUI and ActiveSync  
>> display the event correctly. But when downloaded by CalDAV I get  
>> this:
>>
>> BEGIN:VCALENDAR
>> VERSION:2.0
>> X-WR-CALNAME:Calendar of dvtest1
>> PRODID:-//The Horde Project//Horde iCalendar Library//EN
>> BEGIN:VEVENT
>> DTSTART;TZID=CET:20160308T150000
>> DTEND;TZID=CET:20160308T153000
>> DTSTAMP:20160314T123714Z
>> UID:20160314132443.4C_Xp8mUFWBF6GsNZi0nVRb at ...
>> CREATED:20160314T122443Z
>> LAST-MODIFIED:20160314T122443Z
>> SUMMARY:B15:00
>> CLASS:PUBLIC
>> STATUS:CONFIRMED
>> TRANSP:OPAQUE
>> BEGIN:VALARM
>> ACTION:DISPLAY
>> DESCRIPTION:B15:00
>> TRIGGER;VALUE=DURATION:-PT15M
>> END:VALARM
>> END:VEVENT
>> BEGIN:VTIMEZONE
>> TZID:CET
>> END:VTIMEZONE
>> END:VCALENDAR
>>
>> My client is totally confused by the timezone CET. If I replace the  
>> string CET by "Europe/Berlin" in the database, I get the correct  
>> date in the CalDAV client, too, and a lot more entries in VTIMEZONE.
>>
>> The user has Europe/Berlin as default timezone, as does PHP.
>>
>> Is this some configuration error?
>> If I remember correctly, ActiveSync storred UTC as timezone, didn't it?
>>
>> -- 
>> Steffen
>
> Looks like starting with PHP 5.5.10 DateTimeZone no longer converts  
> timezone abbreviations to full timezone names, which is of course a  
> big BC break. We would have to work around this.

OTOH we don't import unknown timezones anyway, at least not via  
iCalendar import. But maybe we do this differently with ActiveSync.  
Michael does know better.

-- 
Jan Schneider
The Horde Project
http://www.horde.org/