draft-ietf-httpbis-semantics-19.txt   draft-ietf-httpbis-semantics-latest.txt 
HTTP Working Group R. Fielding, Ed. HTTP Working Group R. Fielding, Ed.
Internet-Draft Adobe Internet-Draft Adobe
Obsoletes: 2818, 7230, 7231, 7232, 7233, 7235, M. Nottingham, Ed. Obsoletes: 2818, 7230, 7231, 7232, 7233, 7235, M. Nottingham, Ed.
7538, 7615, 7694 (if approved) Fastly 7538, 7615, 7694 (if approved) Fastly
Updates: 3864 (if approved) J. Reschke, Ed. Updates: 3864 (if approved) J. Reschke, Ed.
Intended status: Standards Track greenbytes Intended status: Standards Track greenbytes
Expires: March 14, 2022 September 10, 2021 Expires: March 17, 2022 September 13, 2021
HTTP Semantics HTTP Semantics
draft-ietf-httpbis-semantics-19 draft-ietf-httpbis-semantics-latest
Abstract Abstract
The Hypertext Transfer Protocol (HTTP) is a stateless application- The Hypertext Transfer Protocol (HTTP) is a stateless application-
level protocol for distributed, collaborative, hypertext information level protocol for distributed, collaborative, hypertext information
systems. This document describes the overall architecture of HTTP, systems. This document describes the overall architecture of HTTP,
establishes common terminology, and defines aspects of the protocol establishes common terminology, and defines aspects of the protocol
that are shared by all versions. In this definition are core that are shared by all versions. In this definition are core
protocol elements, extensibility mechanisms, and the "http" and protocol elements, extensibility mechanisms, and the "http" and
"https" Uniform Resource Identifier (URI) schemes. "https" Uniform Resource Identifier (URI) schemes.
skipping to change at page 1, line 40 skipping to change at page 1, line 40
This note is to be removed before publishing as an RFC. This note is to be removed before publishing as an RFC.
Discussion of this draft takes place on the HTTP working group Discussion of this draft takes place on the HTTP working group
mailing list (ietf-http-wg@w3.org), which is archived at mailing list (ietf-http-wg@w3.org), which is archived at
<https://lists.w3.org/Archives/Public/ietf-http-wg/>. <https://lists.w3.org/Archives/Public/ietf-http-wg/>.
Working Group information can be found at <https://httpwg.org/>; Working Group information can be found at <https://httpwg.org/>;
source code and issues list for this draft can be found at source code and issues list for this draft can be found at
<https://github.com/httpwg/http-core>. <https://github.com/httpwg/http-core>.
The changes in this draft are summarized in Appendix C.20. The changes in this draft are summarized in Appendix C.21.
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 14, 2022. This Internet-Draft will expire on March 17, 2022.
Copyright Notice Copyright Notice
Copyright (c) 2021 IETF Trust and the persons identified as the Copyright (c) 2021 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/ Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document. license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights Please review these documents carefully, as they describe your rights
skipping to change at page 2, line 49 skipping to change at page 2, line 49
not be created outside the IETF Standards Process, except to format not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other it for publication as an RFC or to translate it into languages other
than English. than English.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 9 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2. History and Evolution . . . . . . . . . . . . . . . . . . 10 1.2. History and Evolution . . . . . . . . . . . . . . . . . . 10
1.3. Core Semantics . . . . . . . . . . . . . . . . . . . . . 11 1.3. Core Semantics . . . . . . . . . . . . . . . . . . . . . 11
1.4. Specifications Obsoleted by this Document . . . . . . . . 11 1.4. Specifications Obsoleted by this Document . . . . . . . . 12
2. Conformance . . . . . . . . . . . . . . . . . . . . . . . . . 12 2. Conformance . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1. Syntax Notation . . . . . . . . . . . . . . . . . . . . . 12 2.1. Syntax Notation . . . . . . . . . . . . . . . . . . . . . 12
2.2. Requirements Notation . . . . . . . . . . . . . . . . . . 13 2.2. Requirements Notation . . . . . . . . . . . . . . . . . . 13
2.3. Length Requirements . . . . . . . . . . . . . . . . . . . 14 2.3. Length Requirements . . . . . . . . . . . . . . . . . . . 14
2.4. Error Handling . . . . . . . . . . . . . . . . . . . . . 15 2.4. Error Handling . . . . . . . . . . . . . . . . . . . . . 15
2.5. Protocol Version . . . . . . . . . . . . . . . . . . . . 15 2.5. Protocol Version . . . . . . . . . . . . . . . . . . . . 15
3. Terminology and Core Concepts . . . . . . . . . . . . . . . . 16 3. Terminology and Core Concepts . . . . . . . . . . . . . . . . 16
3.1. Resources . . . . . . . . . . . . . . . . . . . . . . . . 16 3.1. Resources . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2. Representations . . . . . . . . . . . . . . . . . . . . . 17 3.2. Representations . . . . . . . . . . . . . . . . . . . . . 17
3.3. Connections, Clients and Servers . . . . . . . . . . . . 17 3.3. Connections, Clients and Servers . . . . . . . . . . . . 17
skipping to change at page 9, line 33 skipping to change at page 9, line 33
C.11. Since draft-ietf-httpbis-semantics-09 . . . . . . . . . . 226 C.11. Since draft-ietf-httpbis-semantics-09 . . . . . . . . . . 226
C.12. Since draft-ietf-httpbis-semantics-10 . . . . . . . . . . 226 C.12. Since draft-ietf-httpbis-semantics-10 . . . . . . . . . . 226
C.13. Since draft-ietf-httpbis-semantics-11 . . . . . . . . . . 228 C.13. Since draft-ietf-httpbis-semantics-11 . . . . . . . . . . 228
C.14. Since draft-ietf-httpbis-semantics-12 . . . . . . . . . . 228 C.14. Since draft-ietf-httpbis-semantics-12 . . . . . . . . . . 228
C.15. Since draft-ietf-httpbis-semantics-13 . . . . . . . . . . 230 C.15. Since draft-ietf-httpbis-semantics-13 . . . . . . . . . . 230
C.16. Since draft-ietf-httpbis-semantics-14 . . . . . . . . . . 231 C.16. Since draft-ietf-httpbis-semantics-14 . . . . . . . . . . 231
C.17. Since draft-ietf-httpbis-semantics-15 . . . . . . . . . . 233 C.17. Since draft-ietf-httpbis-semantics-15 . . . . . . . . . . 233
C.18. Since draft-ietf-httpbis-semantics-16 . . . . . . . . . . 234 C.18. Since draft-ietf-httpbis-semantics-16 . . . . . . . . . . 234
C.19. Since draft-ietf-httpbis-semantics-17 . . . . . . . . . . 234 C.19. Since draft-ietf-httpbis-semantics-17 . . . . . . . . . . 234
C.20. Since draft-ietf-httpbis-semantics-18 . . . . . . . . . . 236 C.20. Since draft-ietf-httpbis-semantics-18 . . . . . . . . . . 236
C.21. Since draft-ietf-httpbis-semantics-19 . . . . . . . . . . 236
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 237 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 237
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 249 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 249
1. Introduction 1. Introduction
1.1. Purpose 1.1. Purpose
The Hypertext Transfer Protocol (HTTP) is a family of stateless, The Hypertext Transfer Protocol (HTTP) is a family of stateless,
application-level, request/response protocols that share a generic application-level, request/response protocols that share a generic
skipping to change at page 237, line 5 skipping to change at page 236, line 46
o In Section 12.2, wordsmith future guidance on reactive negotiation o In Section 12.2, wordsmith future guidance on reactive negotiation
(<https://github.com/httpwg/http-core/pull/975>) (<https://github.com/httpwg/http-core/pull/975>)
o In Section 15.4.2 and Section 15.4.9, improve text about automatic o In Section 15.4.2 and Section 15.4.9, improve text about automatic
link-editing (<https://github.com/httpwg/http-core/pull/976>) link-editing (<https://github.com/httpwg/http-core/pull/976>)
o In Section 17, reference [URI] security considerations o In Section 17, reference [URI] security considerations
(<https://github.com/httpwg/http-core/pull/977>) (<https://github.com/httpwg/http-core/pull/977>)
C.21. Since draft-ietf-httpbis-semantics-19
o None.
Acknowledgements Acknowledgements
Aside from the current editors, the following individuals deserve Aside from the current editors, the following individuals deserve
special recognition for their contributions to early aspects of HTTP special recognition for their contributions to early aspects of HTTP
and its core specifications: Marc Andreessen, Tim Berners-Lee, Robert and its core specifications: Marc Andreessen, Tim Berners-Lee, Robert
Cailliau, Daniel W. Connolly, Bob Denny, John Franks, Jim Gettys, Cailliau, Daniel W. Connolly, Bob Denny, John Franks, Jim Gettys,
Jean-François Groff, Phillip M. Hallam-Baker, Koen Holtman, Jeffery Jean-François Groff, Phillip M. Hallam-Baker, Koen Holtman, Jeffery
L. Hostetler, Shel Kaphan, Dave Kristol, Yves Lafon, Scott L. Hostetler, Shel Kaphan, Dave Kristol, Yves Lafon, Scott
D. Lawrence, Paul J. Leach, Håkon W. Lie, Ari Luotonen, Larry D. Lawrence, Paul J. Leach, Håkon W. Lie, Ari Luotonen, Larry
Masinter, Rob McCool, Jeffrey C. Mogul, Lou Montulli, David Morris, Masinter, Rob McCool, Jeffrey C. Mogul, Lou Montulli, David Morris,
 End of changes. 7 change blocks. 
5 lines changed or deleted 10 lines changed or added

This html diff was produced by rfcdiff 1.48. The latest version is available from http://tools.ietf.org/tools/rfcdiff/