Re: [sipcore] draft-barnes-sipcore-rfc4244bis - privacy syntax
OKUMURA Shinji <shin@softfront.co.jp> Mon, 13 July 2009 09:11 UTC
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From: OKUMURA Shinji <shin@softfront.co.jp>
To: SIPCORE <sipcore@ietf.org>
Date: Mon, 13 Jul 2009 18:11:40 +0900
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Subject: Re: [sipcore] draft-barnes-sipcore-rfc4244bis - privacy syntax
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Hi, "Dale Worley" <dworley@nortel.com> >On Thu, 2009-07-09 at 14:07 -0400, Audet, Francois (SC100:3055) wrote: >> It's basically saying that the Privacy and Reason "escaped parameters" would >> translate into headers if we were to created a request based on it. > >I can't see any circumstances where we would want to create a request >that included the Privacy or Reason headers from a H-I entry. > >In regard to Privacy, if its value is "history", that means that the >particular H-I URI should be restricted. But that is not the meaning of >adding the "Privacy: history" header to a request -- in the latter case, >History-Info should not be generated at all. (Which is what I mean when >I say "the values of Privacy in History-Info do not have the same >semantics as the values of the Privacy header".) I have another question in regard to the above. When the entity that add a hi-entity require privacy service to removed it, where should the entity set a priv-value "critical" ? If it set "critical" in Privacy header of the request, all hi-entities are removed. If in hi-targeted-to-uri, the privacy service that does not support "history" will forward the request without the change. Is this correct? Regards, Shinji >In regard to Reason, as far as I can tell, it is attached to an H-I >entry to show the response that was received to the request that was >sent to that URI. Generating a request based on that H-I entry would >create a request to that same URI, containing a Reason header in the >request that *predicts* the response that the request will receive. > >Given that in no case would we want to generate and use (with the >implicit headers) a request based on the H-I entry's URI-with-headers, I >don't see why these data items are stored in headers attached to the >URI. > >On Wed, 2009-07-08 at 19:25 -0400, Barnes, Mary (RICH2:AR00) wrote: >> As far as privacy, I'm not sure what you mean with regards >> to " This privacy value is an annotation of the URI, whereas the current >> syntax incorporates it *into* the URI." The privacy value isn't >> incorporated into the URI - it's an escaped parameter. > >It's an escaped parameter, but it *is* part of the URI -- see the >production "SIP-URI" in section 25.1 of RFC 3261. And if you ask the >grammar, "What is the URI part of an H-I entry?" you will get back the >'headers' as part of the URI. > >Similarly, any device or syntax which admits a SIP URI will allow you to >enter a string containing 'headers'. Indeed, there is only one >situation where a SIP URI is possible but that URI cannot contain >'headers', and that is as the request-URI of a request. That isn't >specified in the syntax (which allows SIP-URI), but is a consequence of >the processing in section 19.1.5, which removes the 'headers' from the >supplied SIP URI and turns them into message headers. > >Dale
- [sipcore] draft-barnes-sipcore-rfc4244bis - hi-ta… Dale Worley
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - h… Mary Barnes
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - h… Dale Worley
- [sipcore] draft-barnes-sipcore-rfc4244bis - priva… Dale Worley
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Mary Barnes
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Francois Audet
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Dale Worley
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Mary Barnes
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Francois Audet
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Hadriel Kaplan
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Hadriel Kaplan
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Hans Erik van Elburg
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Paul Kyzivat
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Francois Audet
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… OKUMURA Shinji
- Re: [sipcore] draft-barnes-sipcore-rfc4244bis - p… Dale Worley