Network Working Group J.M. Snell Internet-Draft March 12, 2014 Intended status: Informational Expires: September 13, 2014 Additional Link Relation Registrations draft-snell-more-link-relations-04 Abstract This specification registers a handful of new RFC 5988 Link Relation types. Status of This Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on September 13, 2014. Copyright Notice Copyright (c) 2014 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2 3. Security Considerations . . . . . . . . . . . . . . . . . . . 3 Snell Expires September 13, 2014 [Page 1] Internet-Draft More Link Relations March 2014 4. Informative References . . . . . . . . . . . . . . . . . . . 3 Appendix A. Examples . . . . . . . . . . . . . . . . . . . . . . 3 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 5 1. Introduction This specification defines and adds the following additional link relation types to the IANA Registry of Link Relations established by [RFC5988]: to, bto, cc, bcc, from, bfrom, source, scope, generator, provider, location, alias and mentioned-by. Note that this document is a work-in-progress draft specification that does not yet represent a "standard". It is the intention of this specification to propose a few new ideas and openly solicit feedback on their definition and use. While this document might eventually evolve into an RFC the ideas described herein have not yet been broadly implemented and have definitions that may evolve through successive iterations of this draft. 2. IANA Considerations The following Link Relations are added to the IANA Registry of Link Relations: +----------------+--------------------------------------------------+ | Name | Description | +----------------+--------------------------------------------------+ | id | Specifies an IRI [RFC3987] or URI | | | [RFC3986]considered to represent the identity of | | | the link context. | | to | Refers to a resource that is considered to be | | | part of the public primary audience of the | | | link's context. | | bto | Refers to a resource that is considered to be | | | part of the private primary audience of the | | | link's context. | | cc | Refers to a resource that is considered to be | | | part of the public secondary audience of the | | | link's context. | | bcc | Refers to a resource that is considered to be | | | part of the private secondary audience of the | | | link's context. | | from | Refers to a resource that is publicly considered | | | to be the originator of the link's context. | | bfrom | Refers to a resource that is privately | | | considered to be the orignator of the link's | | | context. | | scope | Refers to a resource that identifies the total | Snell Expires September 13, 2014 [Page 2] Internet-Draft More Link Relations March 2014 | | population of entities for which the context is | | | considered relevant. | | source | Refers to the original source of information | | | contained by the context resource. | | provider | Refers to the resource that provided the context | | | resource. Typically, this would be used to | | | identify the entity publishing the resource. | | generator | Refers to the resource that generated the | | | context resource. Typically, this would be used | | | to identify the software application that | | | created the context resource. | | mentioned-by | Refers to a resource that mentions the context | | | resource in some fashion. This, for example, | | | would be used when an article mentions another | | | article, or a social status update mentions a | | | particular user, etc. | | location | References an IRI or URI representing a physical | | | or logical location with which the context | | | resource is associated. | +----------------+--------------------------------------------------+ 3. Security Considerations There are no additional security concerns introduced by this document. 4. Informative References [RFC3986] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform Resource Identifier (URI): Generic Syntax", STD 66, RFC 3986, January 2005. [RFC3987] Duerst, M. and M. Suignard, "Internationalized Resource Identifiers (IRIs)", RFC 3987, January 2005. [RFC5988] Nottingham, M., "Web Linking", RFC 5988, October 2010. Appendix A. Examples Using targeting link relations and the urn:social namespace: Snell Expires September 13, 2014 [Page 3] Internet-Draft More Link Relations March 2014 POST /alerts HTTP/1.1 Host: example.org Content-Type: text/plain Authorization: Basic {Base64 Credentials} Link: ; rel="to" Link: ; rel="cc" Link: ; rel="bfrom" Link: ; rel="scope" Test message Using the targeting link relations with urn:social:role: POST /alerts HTTP/1.1 Host: example.org Content-Type: text/plain Authorization: Basic {Base64 Credentials} Link: ; rel="to" Link: ; rel="cc" Test message Using publication link relations: ... ... ... Using the location relation: Snell Expires September 13, 2014 [Page 4] Internet-Draft More Link Relations March 2014 Link: ; rel="location" Using the mentioned-by relation: LINK /articles/1 HTTP/1.1 Host: example.org Link: ; rel="mentioned-by" Author's Address James M Snell Email: jasnell@gmail.com Snell Expires September 13, 2014 [Page 5]