On Do, 2011-06-23 at 10:18 +0200, Lukas Zeller wrote:
On Jun 22, 2011, at 22:16 , Patrick Ohly wrote:
> I have done some work on minimizing the number of requests sent during a
> WebDAV and/or CalDAV sync. One major improvement is the use of CTag
an extensions supported by Google, Yahoo and Apple calendar servers.
Oh, that's interesting! I speculated about sync and the iCloud a few
on a IETF draft proposal from early 2011, co-authored by Cyrus Daboo
at Apple: http://datatracker.ietf.org/doc/draft-daboo-webdav-sync
I hope to use that extension at some point. Before I do, there's another
improvement that makes more sense first: when something changed on the
server (indicated by modified CTag), the code requests a full calendar
dump (REPORT) because it needs to know about all UID + RECURRENCE-ID
It would be more efficient to do a PROPFIND to get a list of resources
plus the ETags, then only ask for those resources which are new or
modified. It's on my TODO list...
Although the iCloud itself is all but "open", it will
the "sync" topic in general in the next few months. And if it is based
on syncable WebDAV as I believe it is, that would be an important step
towards open standards based sync!
That would indeed be very good news.
I hope such general thoughts on sync are not considere OT for the
Syncevolution list :-)
Not at all! :-)
Best Regards, Patrick Ohly
The content of this message is my personal opinion only and although
I am an employee of Intel, the statements I make here in no way
represent Intel's position on the issue, nor am I authorized to speak
on behalf of Intel on this matter.