[CalendarServer-users] Older iCal works...sometimes

[Emil Lundberg]

Hi Douglas,

(DCS folks, feel free to correct me if I am mistaken)

DCS at its core is a WebDAV server (basically HTTP with r/w  
capabilities), allowing any user to upload files (not  
necessarily .ics/iCalendar files) to a any permitted directory using  
the proper credentials. This can also be accomplished using the DAV  
extension to a standard Apache httpd web service.

While it is entirely possible to allow iCal 2 (or Outlook 2007,  
Windows Vista Calendar, Evolution, etc) clients to publish and  
subscribe to calendars residing in the DCS collection space, CalDAV- 
aware clients (such as iCal 3, SunBird/Lightning or Mulberry) will  
never be able to access these directly through their CalDAV accounts.  
Rather they will have to subscribe/publish to them as they would any  
other web-calendar, and all the CalDAV-specific functionality  
(delegations, acl, free-busy, true server-based calendars, etc) will  
be lost.

Basically, you will have to decide what level of functionality you  
are aiming for; if all you need is to publish/subscribe to web  
calendars, you just require a WebDAV server (even Exchange has some  
support for this, IIRC). Taking the CalDAV route promises much more  
but has the downside of being a work in progress and also limits your  
current choice in clients. This is expected change rather rapidly  
however :-)

best,

/Emil

28 okt 2007 kl. 07.26 skrev Douglas O'Connor:

> Hello again,
>
> I have found that I can still publish to the DCS with the older  
> 10.4 iCal (v2.0), which the online documentation says is not  
> compatible, as long as it is done in the root directory and with  
> the admin/admin uid/pwd. For example, publishing to http:// 
> www.servername.edu:8008/ with admin/admin is no problem. It has a  
> problem unpublishing, but the ability to publish and subscribe is  
> there for older versions of iCal.
>
> I am wondering if, since it is possible for this to happen on the  
> root dir with the admin guid, can I somehow config DCS to let it  
> happen across the server, in other dir structures? Is there a  
> reason why I wouldn't want this? Normally when I try this, I get:  
> Calendar data does not conform to CalDAV requirements: METHOD  
> property is not allowed in CalDAV iCalendar data. But it seems  
> important that servers be somewhat backwards compatible, so that  
> not everybody has to go out and buy new software in order to take  
> advantage. Additionally, why wouldn't I receive the same error  
> message as an admin/admin publishing to the root dir?
>
> Any ideas would be welcome, thank you all very much for helping out.
>
> -Doug
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