Hello
Am 09.12.19 um 10:35 schrieb John Stirling (j...@johnstirling.co.uk):
> Hi Christian,
>
> Thank you for replying
>
> On 05/12/2019 08:39, Christian Mack (christian.m...@uni-konstanz.de) wrote:
>> Hello
>>
>> Am 28.11.19 um 18:56 schrieb John Stirling (j...@johnstirling.co.uk):
>>> Hi guys,
>>>
>>> I could really use some advice please.
>>>
>>> I'm using sogo 4.1.1 (@shiva2.inverse 201911280300) on Ubuntu 18.04.4
>>> with a mixed environment of Mozilla Thunderbird versions from 68 or so
>>> through to 71, and some phones, apple and android. We aren't a big site,
>>> 12 users, with maybe 8 phones connected.
>>>
>>> Today following an update to the server (Ubuntu standard update), and an
>>> increase to WOWorkersCount and PREFORK all day events have started
>>> behaving oddly (I don't thing it can be the config change, but since
>>> it's a change I'm mentioning it
>>>
>>> The behaviour is that instead of showing at the top of the calendar in
>>> Thunderbird, they now get treated as 24 hour events. This is a
>>> significant issue for us as there are a lot of shared diaries, and we
>>> use all day events quite a bit. The web version of SOGo works fine.
>>>
>>> It's odd as it seems to be applying to all versions of Thunderbird, but
>>> there have been no updates to Thunderbird, so it appears to be how SOGo
>>> is treating all day requests as standard from Thunderbird. When these
>>> events are opened in SOGo web interface they do not register as all day
>>> events.
>>>
>>> Thanks
>>>
>>> John
>>>
>> Do you use ActiveSync?
>>
>> Which timezones have you set on Thunderbird clients and sogo.conf and
>> user settings?
>>
>> Please give an example in raw form.
> BEGIN:VCALENDAR
>
> PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
> VERSION:2.0
> BEGIN:VEVENT
> CREATED:20191203T173909Z
> LAST-MODIFIED:20191206T144043Z
> DTSTAMP:20191206T132229Z
> UID:97d0e002-4dc9-4a27-be06-4ef3f94b2b20
> SUMMARY:test
> DTSTART;VALUE=DATE:20191207
> DTEND;VALUE=DATE:20191208
> CLASS:PUBLIC
> TRANSP:TRANSPARENT
> SEQUENCE:3
> X-MOZ-GENERATION:4
> END:VEVENT
> END:VCALENDAR
>
>> One event created from SOGo Webfrontend which is not displayed as all
>> day event in Thunderbird.
> If the event is created within the SOGo Webfrontend it is displayed correctly
> within thunderbird and SOGo. If the event is then edited within Thunderbird
> or
> a new event is created within Thunderbird then the event no long displays
> correctly in either SOGo or Thunderbird.
>> And one event created in Thunderbird, which is not displayed in SOGo
>> webfrontend as all day.
>
> BEGIN:VCALENDAR
> PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
> VERSION:2.0
> BEGIN:VTIMEZONE
> TZID:Europe/London
> LAST-MODIFIED:20191023T183904Z
> X-LIC-LOCATION:Europe/London
> BEGIN:DAYLIGHT
> TZNAME:BST
> TZOFFSETFROM:+
> TZOFFSETTO:+0100
> DTSTART:19700329T01
> RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
> END:DAYLIGHT
> BEGIN:STANDARD
> TZNAME:GMT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+
> DTSTART:19701025T02
> RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
> END:STANDARD
> END:VTIMEZONE
> BEGIN:VEVENT
> CREATED:20191203T173909Z
> LAST-MODIFIED:20191206T132229Z
> DTSTAMP:20191206T132229Z
> UID:97d0e002-4dc9-4a27-be06-4ef3f94b2b20
> SUMMARY:test
> DTSTART;TZID=Europe/London:20191207T00
> DTEND;TZID=Europe/London:20191208T00
> CLASS:PUBLIC
> TRANSP:TRANSPARENT
> SEQUENCE:3
> X-MOZ-GENERATION:4
> END:VEVENT
> END:VCALENDAR
>
> This is an iRedmail installation of SOGo, updated through Ubuntu apt upgrade.
>
> We do not have any outlook clients currently. We use android with webdav and
> imap, and have a few iPhones which connect using whatever dark arts apple use
> -
> so I don't think so, but I don't actually know.
>
> Timezone in Thunderbird is Europe/London
>
> SOGoTimeZone in sogo.conf is "Europe/London"
>
> Many thanks
>
> John Stirling
>
Hmmmh...
Those are both generated in Thunderbird/Lightning:
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
The first event misses a Z character at the end in DTSTART and DTEND in
the event definition.
currently is:
DTSTART;VALUE=DATE:20191207
DTEND;VALUE=DATE:20191208
should be:
DTSTART;VALUE=DATE:20191207Z
DTEND;VALUE=DATE:20191208Z
Without that Z (which means Zulu, which in turn means timezone UTC) that
event is in local time per standard, as no time zone is set at all.
So this event has a false time zone set ("Europe/London" from sogo.conf).
With that this event will not start and end at 00:00:00 UTC, but at
00:00:00 of the set local timezone.
SOGo only accepts events in UTC as all day events.
The second event has a time zone set in the event, but in that timezone
definition it also has not set the Z character in DAYLIGHT and STANDARD
for DTSTART.
This is definitely a bug in Thunderbird/Lightning.
If I understand the RFC correctly, it always has to be Zulu timezone in
timezone definitions.
But as the set timezone is not UTC, even if that bug is corrected, this
event
