URI Design and Ownership
draft-nottingham-rfc7320bis-00

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Network Working Group                                      M. Nottingham
Internet-Draft                                           August 20, 2019
Obsoletes: 7320 (if approved)
Updates: 3986 (if approved)
Intended status: Best Current Practice
Expires: February 21, 2020

                        URI Design and Ownership
                     draft-nottingham-rfc7320bis-00

Abstract

   Section 1.1.1 of RFC 3986 defines URI syntax as "a federated and
   extensible naming system wherein each scheme's specification may
   further restrict the syntax and semantics of identifiers using that
   scheme."  In other words, the structure of a URI is defined by its
   scheme.  While it is common for schemes to further delegate their
   substructure to the URI's owner, publishing independent standards
   that mandate particular forms of URI substructure is inappropriate,
   because that essentially usurps ownership.  This document further
   describes this problematic practice and provides some acceptable
   alternatives for use in standards.

Note to Readers

   _RFC EDITOR: please remove this section before publication_

   This is a proposed revision of RFC7320, aka BCP190.  The -00 draft is
   a copy of the published RFC; subsequent revisions will update it.

   The issues list for this draft can be found at
   https://github.com/mnot/I-D/labels/rfc7320 [1].

   The most recent (often, unpublished) draft is at
   https://mnot.github.io/I-D/rfc7320/ [2].

   Recent changes are listed at https://github.com/mnot/I-D/commits/gh-
   pages/rfc7320 [3].

   See also the draft's current status in the IETF datatracker, at
   https://datatracker.ietf.org/doc/draft-nottingham-rfc7320/ [4].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

Nottingham              Expires February 21, 2020               [Page 1]
Internet-Draft            URI Design Ownership               August 2019

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Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Intended Audience . . . . . . . . . . . . . . . . . . . .   4
     1.2.  Notational Conventions  . . . . . . . . . . . . . . . . .   5
   2.  Best Current Practices for Standardizing Structured URIs  . .   5
     2.1.  URI Schemes . . . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  URI Authorities . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  URI Paths . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.4.  URI Queries . . . . . . . . . . . . . . . . . . . . . . .   6
     2.5.  URI Fragment Identifiers  . . . . . . . . . . . . . . . .   7
   3.  Alternatives to Specifying Structure in URIs  . . . . . . . .   7
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   8
     6.3.  URIs  . . . . . . . . . . . . . . . . . . . . . . . . . .   9
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .   9
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   9

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1.  Introduction

   URIs [RFC3986] very often include structured application data.  This
   might include artifacts from filesystems (often occurring in the path
   component) and user information (often in the query component).  In
   some cases, there can even be application-specific data in the
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