Re: [webfinger] Absolute URI vs URI
John Bradley <ve7jtb@ve7jtb.com> Wed, 24 July 2013 17:19 UTC
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From: John Bradley <ve7jtb@ve7jtb.com>
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Date: Wed, 24 Jul 2013 13:19:00 -0400
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References: <028101ce869e$f02cddb0$d0869910$@packetizer.com> <CAKaEYhJwpR5b6jEcGYzAcWDJ0P1v6w2+L_h0Sh=m-ZOZA=ZHyw@mail.gmail.com> <0a1140f5-24d9-4be6-aab4-1ae6a3d63c0c@email.android.com> <CAKaEYh+iHNz_WawqRKakrHCdctC6_1V5COWYWQ4m9aC0+fh9WQ@mail.gmail.com> <032701ce86e5$27b2dff0$77189fd0$@packetizer.com> <CAKaEYhJUG=RLqpvhze35_HAidNQbFjsWH=43X0cPFaCDZsZb_w@mail.gmail.com>
To: Melvin Carvalho <melvincarvalho@gmail.com>
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Cc: "Paul E. Jones" <paulej@packetizer.com>, webfinger <webfinger@ietf.org>
Subject: Re: [webfinger] Absolute URI vs URI
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Relative URI are not useful without a base to be relative to. Unless we say how to determine the base of a relative URI they should not be allowed. I an imagine several ways to determine a base but without specifying it applications will not behave consistently. The JRD is not a HTML document. John B. On 2013-07-24, at 12:58 PM, Melvin Carvalho <melvincarvalho@gmail.com> wrote: > > > > On 22 July 2013 16:10, Paul E. Jones <paulej@packetizer.com> wrote: > Melvin, > > > > It’s easy enough to replace strings in URIs should data need to be ported. I suggest we remove the word “absolute” where we currently have “absolute URI” and then introduce a new paragraph in the terminology section as follows: > > > > The use of URIs throughout this document refers to URIs following the syntax specified in Section 3 of RFC 3986. Relative URIs, having syntax following that of Section 4.2 or RFC 3986, are not used with WebFinger. > > > > Is that clear? > > > Hi Paul, currently "Absolute URI" occurs only in section 4.4 (ie the description of JRD). Certainly I think the 'absolute' should be removed in section 4.4. > > The RFC in essence describes two things, > > 1. the webfinger protocol > 2. the JRD definition > > This restriction on relative URIs applies to (2), rather than, the whole document, but as it happens that turns out to be the same thing > > Side note: in other situations I like relative URIs because they can be moved from one location to another in a non-breaking way. Say I have /about/ /photos/ /blog/ at one location, I can move them to another without having to worry too much. Therefore, if JRD was ever used in a context outside of webfinger, that would be a slight advantage. > > > > > Paul > > > > From: Melvin Carvalho [mailto:melvincarvalho@gmail.com] > Sent: Monday, July 22, 2013 4:09 AM > To: Paul E. Jones > Cc: webfinger > > > Subject: Re: [webfinger] Absolute URI vs URI > > > > > > > > On 22 July 2013 09:06, Paul E. Jones <paulej@packetizer.com> wrote: > > In not suggesting we use or allow relative URIs. The immediate question would be "relative to what". I think the URIs should be absolute, but not following the syntax of "absolute-URI", but instead just following "URI". > > Yes, that's a good question. Generally relative URIs are relative to the document, but they need not be. For example they could be relative by default to the [supposed] webfinger registry. In JSON LD they have a @context variable which allows quite a bit of flexibility in this regard. I'm unsure if relative URIs are considered a must in standards based serialization (I suspect not) but they have the advantage of slightly increased data portability. > > > > Paul > > > > From: Melvin Carvalho <melvincarvalho@gmail.com> > Sent: Mon Jul 22 02:46:25 EDT 2013 > > > To: "Paul E. Jones" <paulej@packetizer.com> > > Cc: webfinger <webfinger@ietf.org> > > > Subject: Re: [webfinger] Absolute URI vs URI > > > > > > > > > > On 22 July 2013 07:47, Paul E. Jones <paulej@packetizer.com> wrote: > > Folks, > > One of the requirements in the JRD spec is that certain URIs (e.g., those > identifying link relation types and properties) be "absolute URIs". This > term has been a point of confusion, since RFC 3986 uses the term to have a > concrete meaning, namely this: > > absolute-URI = scheme ":" hier-part [ "?" query ] > > And the term is used, because that's the term used in the OASIS XRD > specification. However, it was not clear to me whether that referred to the > above (which I assumed) or referred to URIs that are not relative URIs > (i.e., those lacking a scheme specified). > > I had an exchange with Eran Hammer and Mark Nottingham. I believe the > intent of that language was not to require the above constrained syntax, > but to require the standard URI syntax: > > URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ] > > > > There are many ways that people do this, see: > > http://tantek.com/2011/238/b1/many-ways-slice-url-name-pieces > > > > > Given that understanding, I believe we should remove the word "absolute" > that appears in front of "URI" in the WebFinger spec. Do others have an > opinion on this? > > > > +1 on allowing relative URIs > > > > > Paul > > > _______________________________________________ > webfinger mailing list > webfinger@ietf.org > https://www.ietf.org/mailman/listinfo/webfinger > > > > > > > _______________________________________________ > webfinger mailing list > webfinger@ietf.org > https://www.ietf.org/mailman/listinfo/webfinger
- [webfinger] Absolute URI vs URI Paul E. Jones
- Re: [webfinger] Absolute URI vs URI Tim Bray
- Re: [webfinger] Absolute URI vs URI Melvin Carvalho
- Re: [webfinger] Absolute URI vs URI Paul E. Jones
- Re: [webfinger] Absolute URI vs URI Paul E. Jones
- Re: [webfinger] Absolute URI vs URI Melvin Carvalho
- Re: [webfinger] Absolute URI vs URI Melvin Carvalho
- Re: [webfinger] Absolute URI vs URI Paul E. Jones
- Re: [webfinger] Absolute URI vs URI John Bradley
- Re: [webfinger] Absolute URI vs URI Nat Sakimura
- Re: [webfinger] Absolute URI vs URI Melvin Carvalho
- Re: [webfinger] Absolute URI vs URI John Bradley
- Re: [webfinger] Absolute URI vs URI Melvin Carvalho
- Re: [webfinger] Absolute URI vs URI John Bradley
- Re: [webfinger] Absolute URI vs URI Mike Jones
- Re: [webfinger] Absolute URI vs URI Paul E. Jones
- Re: [webfinger] Absolute URI vs URI Mike Jones