Tuesday, June 22, 2010

[Geopriv] Fwd: Last Call: draft-daboo-srv-caldav (Use of SRV records for locating CalDAV and CardDAV services) to Proposed Standard

This could be a nice long-term option for LIS discovery.
--Richard


Begin forwarded message:

From: Patrik Fältström <paf@cisco.com>
Date: June 22, 2010 2:54:22 AM EDT
To: Cullen Jennings <fluffy@cisco.com>
Subject: Re: Last Call: draft-daboo-srv-caldav (Use of SRV records for locating CalDAV and CardDAV services) to Proposed Standard

All,

I have together with Olaf Kolkman suggested a new RR type that I call URI that work similarly to what is described in this draft (regarding the owner of the RRSET), but a URI in the RDATA. It has been posted to the namedroppers list a few times...but maybe that has been wrong. Maybe Apps Area should have been notified about the work a bit more...

Cyrus has asked a few questions about it, and maybe it is me that have not reached out to the Caldav people enough? I have tried to push it through via the DNS people in the IETF, but there have not been enough traction.

Anyway...

I can do that via an individual submission if there is interest. I think the draft is ready for publication.

See http://tools.ietf.org/html/draft-faltstrom-uri-04 (i.e. the draft has expired a few months ago).

                       1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  |          Priority             |          Weight               |
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  /                                                               /
  /                             Target                            /
  /                                                               /
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

In this case (to take an example from the draft in question), it would be for example:

Instead of:

_caldav._tcp     SRV 0 1 80 calendar.example.com.

Followed by doing PROPFIND for

http://calendar.example.com/.well-known/caldav

...etc...

With a potential redirect etc...

It could with the URI resource record for example be:

_caldav._caldav    IN URI 10 1 "http://www.example.com/example/whatever/uri/caldav/"

or

_carddav._caldav    IN URI 10 1 "http://www.example.com/foo/some/other/uri/carddav/"

And the URI is used directly for the PROPFIND.

  Patrik


On 21 jun 2010, at 20.10, Cullen Jennings wrote:


It seems like using NAPTR might be a better choice than the ./well-known with redirect.


On Jun 18, 2010, at 9:51 AM, The IESG wrote:

The IESG has received a request from an individual submitter to consider
the following document:

- 'Use of SRV records for locating CalDAV and CardDAV services '
<draft-daboo-srv-caldav-05.txt> as a Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action.  Please send substantive comments to the
ietf@ietf.org mailing lists by 2010-07-16. Exceptionally,
comments may be sent to iesg@ietf.org instead. In either case, please
retain the beginning of the Subject line to allow automated sorting.

The file can be obtained via
http://www.ietf.org/internet-drafts/draft-daboo-srv-caldav-05.txt


IESG discussion can be tracked via
https://datatracker.ietf.org/public/pidtracker.cgi?command=view_id&dTag=18589&rfc_flag=0

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Cullen Jennings
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