show-time-as and out-of-office in v3

Christian Mollekopf mollekopf at
Wed Jun 20 13:47:27 CEST 2012

On Wednesday 20 June 2012 13.38:56 Thomas Brüderli wrote:
> Christian Mollekopf wrote:
> > Hey,
> > 
> > I looks like we finally do need the out-of-office feature.
> > 
> > In kolabv2 we had show-time-as with the values free, tentative, busy, or
> > outofoffice. Which was a mix of the TRANSPARENCY setting with some others.
> > 
> > In the v3 I propose the following:
> > * TRANSPARENCY to control if an event shows up in f/b (already done)
> > * STATUS for tentative etc. (already done)
> > * introduce boolead x-out-of-office to LOCATION, to annotate that we're
> > out of office.
> Will that also work with empty location values?

Yes, the location is just a string, and having it empty is valid.

> > For the out-of-office to become actually useful, as it is a kolab-specific
> > feature, we also need to include it in the generated f/b list, for which I
> > propose to use the FBTYPE "X-BUSY-OUTOFOFFICE" (which will be interpreted
> > by clients not understanding it as BUSY).
> As far as I remember that was already hacked into the Horde library for a
> recent customer project where the free/busy system had to work with MS
> Exchange. There we used X-OUT-OF-OFFICE as FBTYPE. I propose to use that
> value for the sake of any unlikely compatibility reason.

Works for me.

> > So the only kolab-specific thing is the outofoffice, which I think makes
> > more sense to store as location annotation than a show-time-as (given
> > that the rest is already covered). The X-BUSY-OUTOFOFFICE might be
> > misusing the FBTYPE slightly as it is not directly related to scheduling,
> > but it's IMO clean enough (the other option would be an x-property).
> As just mentioned, we already did that abuse and I guess no big issues
> arose from that.

Good to know.


> ~Thomas
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> Kolab-format at
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