Atom License Extension
RFC 4946
| Document | Type |
RFC - Experimental
(July 2007; No errata)
Was draft-snell-atompub-feed-license (individual in app area)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 4946 (Experimental) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Lisa Dusseault | ||
| Send notices to | (None) | ||
Network Working Group J. Snell
Request for Comments: 4946 July 2007
Category: Experimental
Atom License Extension
Status of This Memo
This memo defines an Experimental Protocol for the Internet
community. It does not specify an Internet standard of any kind.
Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The IETF Trust (2007).
Abstract
This memo defines an extension to the Atom Syndication Format for
describing licenses associated with Atom feeds and entries.
Table of Contents
1. Introduction ....................................................2
1.1. Notational Conventions .....................................2
1.2. Terminology ................................................2
2. The "license" Link Relation .....................................3
2.1. Unspecified License Links ..................................3
2.2. Comparing License Links ....................................3
2.3. Example ....................................................3
2.4. Inherited Licenses .........................................4
2.5. Relationship with the atom:rights Element ..................4
3. Security Considerations .........................................5
4. IANA Considerations .............................................5
5. Normative References ............................................5
Appendix A. Acknowledgements ......................................7
Snell Experimental [Page 1]
RFC 4946 Atom License Extension July 2007
1. Introduction
This document defines an extension to the Atom Syndication Format
that can be used to add links to Atom feed or entry documents
referencing resources that describe the explicit rights that have
been granted to consumers of those documents.
Describing licenses using the mechanisms defined in this
specification is currently considered to be largely experimental.
While it is a common practice for feed publishers to associate
licenses with syndicated content, there are still very few feed
consumers that utilize such metadata, and the effectiveness of doing
so is still largely unknown. As it is not yet certain how these
mechanisms will be used, implementations and feedback are encouraged.
1.1. Notational Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in BCP 14, [RFC2119].
1.2. Terminology
The term "link relation" refers to the value of the Atom link
elements rel attribute as defined in Section 4.2.7.2 of [RFC4287].
The term "license" refers to a potentially machine-readable
description of explicit rights that have been granted to consumers of
an Atom feed or entry. Rights granted by a license may be associated
with obligations that must be assumed by those exercising those
rights.
Atom allows the use of Internationalized Resource Identifiers (IRIs)
[RFC3987]. Every URI [RFC3986] is also an IRI, so a URI may be used
wherever below an IRI is named. When an IRI that is not also a URI
is given for dereferencing, it MUST be mapped to a URI using the
steps in Section 3.1 of [RFC3987].
Atom allows the use of the xml:base attribute [W3C.REC-xmlbase-
20010627] to establish the base URI (or IRI) used to resolve any
relative references as described in Section 5.1.1 of [RFC3986].
Atom allows the use of the xml:lang attribute to indicate the natural
language of an element, its attributes, and its descendents. The
language context is only significant for elements and attributes
declared to be "Language-Sensitive" as described in [RFC4287]. The
title attribute of the atom:link element is defined as being
Language-Sensitive.
Snell Experimental [Page 2]
RFC 4946 Atom License Extension July 2007
2. The "license" Link Relation
The "license" link relation can be used to associate licenses with a
feed or entry.
Feed and entry elements MAY contain any number of "license" link
relations but MUST NOT contain more than one with the same
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