draft-ietf-httpbis-p2-semantics-26.txt   draft-ietf-httpbis-p2-semantics-latest.txt 
HTTPbis Working Group R. Fielding, Ed. HTTPbis Working Group R. Fielding, Ed.
Internet-Draft Adobe Internet-Draft Adobe
Obsoletes: 2616 (if approved) J. Reschke, Ed. Obsoletes: 2616 (if approved) J. Reschke, Ed.
Updates: 2817 (if approved) greenbytes Updates: 2817 (if approved) greenbytes
Intended status: Standards Track February 6, 2014 Intended status: Standards Track April 17, 2014
Expires: August 10, 2014 Expires: October 19, 2014
Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content
draft-ietf-httpbis-p2-semantics-26 draft-ietf-httpbis-p2-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 defines the semantics of HTTP/1.1 messages, systems. This document defines the semantics of HTTP/1.1 messages,
as expressed by request methods, request header fields, response as expressed by request methods, request header fields, response
status codes, and response header fields, along with the payload of status codes, and response header fields, along with the payload of
messages (metadata and body content) and mechanisms for content messages (metadata and body content) and mechanisms for content
negotiation. negotiation.
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Discussion of this draft takes place on the HTTPBIS working group Discussion of this draft takes place on the HTTPBIS working group
mailing list (ietf-http-wg@w3.org), which is archived at mailing list (ietf-http-wg@w3.org), which is archived at
<http://lists.w3.org/Archives/Public/ietf-http-wg/>. <http://lists.w3.org/Archives/Public/ietf-http-wg/>.
The current issues list is at The current issues list is at
<http://tools.ietf.org/wg/httpbis/trac/report/3> and related <http://tools.ietf.org/wg/httpbis/trac/report/3> and related
documents (including fancy diffs) can be found at documents (including fancy diffs) can be found at
<http://tools.ietf.org/wg/httpbis/>. <http://tools.ietf.org/wg/httpbis/>.
The changes in this draft are summarized in Appendix E.3. The changes in this draft are summarized in Appendix E.4.
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 http://datatracker.ietf.org/drafts/current/. Drafts is at http://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 August 10, 2014. This Internet-Draft will expire on October 19, 2014.
Copyright Notice Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the Copyright (c) 2014 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 Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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A.5. Conversion of Content-Transfer-Encoding . . . . . . . . . 89 A.5. Conversion of Content-Transfer-Encoding . . . . . . . . . 89
A.6. MHTML and Line Length Limitations . . . . . . . . . . . . 89 A.6. MHTML and Line Length Limitations . . . . . . . . . . . . 89
Appendix B. Changes from RFC 2616 . . . . . . . . . . . . . . . . 89 Appendix B. Changes from RFC 2616 . . . . . . . . . . . . . . . . 89
Appendix C. Imported ABNF . . . . . . . . . . . . . . . . . . . . 92 Appendix C. Imported ABNF . . . . . . . . . . . . . . . . . . . . 92
Appendix D. Collected ABNF . . . . . . . . . . . . . . . . . . . 92 Appendix D. Collected ABNF . . . . . . . . . . . . . . . . . . . 92
Appendix E. Change Log (to be removed by RFC Editor before Appendix E. Change Log (to be removed by RFC Editor before
publication) . . . . . . . . . . . . . . . . . . . . 95 publication) . . . . . . . . . . . . . . . . . . . . 95
E.1. Since RFC 2616 . . . . . . . . . . . . . . . . . . . . . . 95 E.1. Since RFC 2616 . . . . . . . . . . . . . . . . . . . . . . 95
E.2. Since draft-ietf-httpbis-p2-semantics-24 . . . . . . . . . 95 E.2. Since draft-ietf-httpbis-p2-semantics-24 . . . . . . . . . 95
E.3. Since draft-ietf-httpbis-p2-semantics-25 . . . . . . . . . 96 E.3. Since draft-ietf-httpbis-p2-semantics-25 . . . . . . . . . 96
E.4. Since draft-ietf-httpbis-p2-semantics-26 . . . . . . . . . 96
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
1. Introduction 1. Introduction
Each Hypertext Transfer Protocol (HTTP) message is either a request Each Hypertext Transfer Protocol (HTTP) message is either a request
or a response. A server listens on a connection for a request, or a response. A server listens on a connection for a request,
parses each message received, interprets the message semantics in parses each message received, interprets the message semantics in
relation to the identified request target, and responds to that relation to the identified request target, and responds to that
request with one or more response messages. A client constructs request with one or more response messages. A client constructs
request messages to communicate specific intentions, and examines request messages to communicate specific intentions, and examines
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10. Acknowledgments 10. Acknowledgments
See Section 10 of [Part1]. See Section 10 of [Part1].
11. References 11. References
11.1. Normative References 11.1. Normative References
[Part1] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext [Part1] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext
Transfer Protocol (HTTP/1.1): Message Syntax and Transfer Protocol (HTTP/1.1): Message Syntax and
Routing", draft-ietf-httpbis-p1-messaging-26 (work in Routing", draft-ietf-httpbis-p1-messaging-latest (work
progress), February 2014. in progress), April 2014.
[Part4] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext [Part4] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext
Transfer Protocol (HTTP/1.1): Conditional Requests", Transfer Protocol (HTTP/1.1): Conditional Requests",
draft-ietf-httpbis-p4-conditional-26 (work in draft-ietf-httpbis-p4-conditional-latest (work in
progress), February 2014. progress), April 2014.
[Part5] Fielding, R., Ed., Lafon, Y., Ed., and J. Reschke, Ed., [Part5] Fielding, R., Ed., Lafon, Y., Ed., and J. Reschke, Ed.,
"Hypertext Transfer Protocol (HTTP/1.1): Range "Hypertext Transfer Protocol (HTTP/1.1): Range
Requests", draft-ietf-httpbis-p5-range-26 (work in Requests", draft-ietf-httpbis-p5-range-latest (work in
progress), February 2014. progress), April 2014.
[Part6] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke, [Part6] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
Ed., "Hypertext Transfer Protocol (HTTP/1.1): Caching", Ed., "Hypertext Transfer Protocol (HTTP/1.1): Caching",
draft-ietf-httpbis-p6-cache-26 (work in progress), draft-ietf-httpbis-p6-cache-latest (work in progress),
February 2014. April 2014.
[Part7] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext [Part7] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext
Transfer Protocol (HTTP/1.1): Authentication", Transfer Protocol (HTTP/1.1): Authentication",
draft-ietf-httpbis-p7-auth-26 (work in progress), draft-ietf-httpbis-p7-auth-latest (work in progress),
February 2014. April 2014.
[RFC2045] Freed, N. and N. Borenstein, "Multipurpose Internet [RFC2045] Freed, N. and N. Borenstein, "Multipurpose Internet
Mail Extensions (MIME) Part One: Format of Internet Mail Extensions (MIME) Part One: Format of Internet
Message Bodies", RFC 2045, November 1996. Message Bodies", RFC 2045, November 1996.
[RFC2046] Freed, N. and N. Borenstein, "Multipurpose Internet [RFC2046] Freed, N. and N. Borenstein, "Multipurpose Internet
Mail Extensions (MIME) Part Two: Media Types", Mail Extensions (MIME) Part Two: Media Types",
RFC 2046, November 1996. RFC 2046, November 1996.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
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o <http://tools.ietf.org/wg/httpbis/trac/ticket/545>: "requirement o <http://tools.ietf.org/wg/httpbis/trac/ticket/545>: "requirement
on implementing methods according to their semantics" on implementing methods according to their semantics"
o <http://tools.ietf.org/wg/httpbis/trac/ticket/546>: o <http://tools.ietf.org/wg/httpbis/trac/ticket/546>:
"considerations for new headers: privacy" "considerations for new headers: privacy"
o <http://tools.ietf.org/wg/httpbis/trac/ticket/549>: "augment o <http://tools.ietf.org/wg/httpbis/trac/ticket/549>: "augment
security considerations with pointers to current research" security considerations with pointers to current research"
E.4. Since draft-ietf-httpbis-p2-semantics-26
None yet.
Index Index
1 1
1xx Informational (status code class) 49 1xx Informational (status code class) 49
2 2
2xx Successful (status code class) 50 2xx Successful (status code class) 50
3 3
3xx Redirection (status code class) 53 3xx Redirection (status code class) 53
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