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Changeset 1519 for draft-ietf-httpbis/latest/p2-semantics.html
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- 30/01/12 01:49:16 (9 years ago)
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draft-ietf-httpbis/latest/p2-semantics.html (modified) (10 diffs)
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draft-ietf-httpbis/latest/p2-semantics.html
r1516 r1519 358 358 } 359 359 @bottom-center { 360 content: "Expires July 29, 2012";360 content: "Expires August 1, 2012"; 361 361 } 362 362 @bottom-right { … … 410 410 <meta name="dct.creator" content="Reschke, J. F."> 411 411 <meta name="dct.identifier" content="urn:ietf:id:draft-ietf-httpbis-p2-semantics-latest"> 412 <meta name="dct.issued" scheme="ISO8601" content="2012-01-2 6">412 <meta name="dct.issued" scheme="ISO8601" content="2012-01-29"> 413 413 <meta name="dct.replaces" content="urn:ietf:rfc:2616"> 414 414 <meta name="dct.abstract" content="The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypertext information systems. HTTP has been in use by the World Wide Web global information initiative since 1990. This document is Part 2 of the seven-part specification that defines the protocol referred to as "HTTP/1.1" and, taken together, obsoletes RFC 2616. Part 2 defines the semantics of HTTP messages as expressed by request methods, request header fields, response status codes, and response header fields."> … … 441 441 </tr> 442 442 <tr> 443 <td class="left">Expires: July 29, 2012</td>443 <td class="left">Expires: August 1, 2012</td> 444 444 <td class="right">HP</td> 445 445 </tr> … … 494 494 <tr> 495 495 <td class="left"></td> 496 <td class="right">January 2 6, 2012</td>496 <td class="right">January 29, 2012</td> 497 497 </tr> 498 498 </tbody> … … 524 524 in progress”. 525 525 </p> 526 <p>This Internet-Draft will expire on July 29, 2012.</p>526 <p>This Internet-Draft will expire on August 1, 2012.</p> 527 527 <h1><a id="rfc.copyrightnotice" href="#rfc.copyrightnotice">Copyright Notice</a></h1> 528 528 <p>Copyright © 2012 IETF Trust and the persons identified as the document authors. All rights reserved.</p> … … 748 748 </p> 749 749 <h2 id="rfc.section.1.2"><a href="#rfc.section.1.2">1.2</a> <a id="notation" href="#notation">Syntax Notation</a></h2> 750 <p id="rfc.section.1.2.p.1">This specification uses the A BNF syntax defined in <a href="p1-messaging.html#notation" title="Syntax Notation">Section 1.2</a> of <a href="#Part1" id="rfc.xref.Part1.3"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> (which extends the syntax defined in <a href="#RFC5234" id="rfc.xref.RFC5234.1"><cite title="Augmented BNF for Syntax Specifications: ABNF">[RFC5234]</cite></a> with a list rule). <a href="#collected.abnf" title="Collected ABNF">Appendix B</a> shows the collected ABNF,with the list rule expanded.750 <p id="rfc.section.1.2.p.1">This specification uses the Augmented Backus-Naur Form (ABNF) notation of <a href="#RFC5234" id="rfc.xref.RFC5234.1"><cite title="Augmented BNF for Syntax Specifications: ABNF">[RFC5234]</cite></a> with the list rule extension defined in <a href="p1-messaging.html#notation" title="Syntax Notation">Section 1.2</a> of <a href="#Part1" id="rfc.xref.Part1.3"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. <a href="#collected.abnf" title="Collected ABNF">Appendix B</a> shows the collected ABNF with the list rule expanded. 751 751 </p> 752 752 <p id="rfc.section.1.2.p.2">The following core rules are included by reference, as defined in <a href="#RFC5234" id="rfc.xref.RFC5234.2"><cite title="Augmented BNF for Syntax Specifications: ABNF">[RFC5234]</cite></a>, <a href="http://tools.ietf.org/html/rfc5234#appendix-B.1">Appendix B.1</a>: ALPHA (letters), CR (carriage return), CRLF (CR LF), CTL (controls), DIGIT (decimal 0-9), DQUOTE (double quote), HEXDIG … … 757 757 <p id="rfc.section.1.2.1.p.1">The core rules below are defined in <a href="#Part1" id="rfc.xref.Part1.4"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>: 758 758 </p> 759 <div id="rfc.figure.u.1"></div><pre class="inline"> <a href="#core.rules" class="smpl">BWS</a> = <BWS, defined in <a href="#Part1" id="rfc.xref.Part1.5"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html# basic.rules" title="Basic Rules">Section 1.2.2</a>>760 <a href="#core.rules" class="smpl">OWS</a> = <OWS, defined in <a href="#Part1" id="rfc.xref.Part1.6"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html# basic.rules" title="Basic Rules">Section 1.2.2</a>>761 <a href="#core.rules" class="smpl">RWS</a> = <RWS, defined in <a href="#Part1" id="rfc.xref.Part1.7"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html# basic.rules" title="Basic Rules">Section 1.2.2</a>>762 <a href="#core.rules" class="smpl">obs-text</a> = <obs-text, defined in <a href="#Part1" id="rfc.xref.Part1.8"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html# basic.rules" title="Basic Rules">Section 1.2.2</a>>763 <a href="#core.rules" class="smpl">quoted-string</a> = <quoted-string, defined in <a href="#Part1" id="rfc.xref.Part1.9"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field. rules" title="Common Field ABNF Rules">Section 3.2.3</a>>764 <a href="#core.rules" class="smpl">token</a> = <token, defined in <a href="#Part1" id="rfc.xref.Part1.10"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field. rules" title="Common Field ABNF Rules">Section 3.2.3</a>>759 <div id="rfc.figure.u.1"></div><pre class="inline"> <a href="#core.rules" class="smpl">BWS</a> = <BWS, defined in <a href="#Part1" id="rfc.xref.Part1.5"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#whitespace" title="Whitespace">Section 3.2.1</a>> 760 <a href="#core.rules" class="smpl">OWS</a> = <OWS, defined in <a href="#Part1" id="rfc.xref.Part1.6"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#whitespace" title="Whitespace">Section 3.2.1</a>> 761 <a href="#core.rules" class="smpl">RWS</a> = <RWS, defined in <a href="#Part1" id="rfc.xref.Part1.7"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#whitespace" title="Whitespace">Section 3.2.1</a>> 762 <a href="#core.rules" class="smpl">obs-text</a> = <obs-text, defined in <a href="#Part1" id="rfc.xref.Part1.8"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field.components" title="Field value components">Section 3.2.4</a>> 763 <a href="#core.rules" class="smpl">quoted-string</a> = <quoted-string, defined in <a href="#Part1" id="rfc.xref.Part1.9"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field.components" title="Field value components">Section 3.2.4</a>> 764 <a href="#core.rules" class="smpl">token</a> = <token, defined in <a href="#Part1" id="rfc.xref.Part1.10"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field.components" title="Field value components">Section 3.2.4</a>> 765 765 </pre><h3 id="rfc.section.1.2.2"><a href="#rfc.section.1.2.2">1.2.2</a> <a id="abnf.dependencies" href="#abnf.dependencies">ABNF Rules defined in other Parts of the Specification</a></h3> 766 766 <p id="rfc.section.1.2.2.p.1">The ABNF rules below are defined in other parts:</p> 767 767 <div id="rfc.figure.u.2"></div><pre class="inline"> <a href="#abnf.dependencies" class="smpl">absolute-URI</a> = <absolute-URI, defined in <a href="#Part1" id="rfc.xref.Part1.11"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#uri" title="Uniform Resource Identifiers">Section 2.7</a>> 768 <a href="#abnf.dependencies" class="smpl">comment</a> = <comment, defined in <a href="#Part1" id="rfc.xref.Part1.12"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field. rules" title="Common Field ABNF Rules">Section 3.2.3</a>>768 <a href="#abnf.dependencies" class="smpl">comment</a> = <comment, defined in <a href="#Part1" id="rfc.xref.Part1.12"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#field.components" title="Field value components">Section 3.2.4</a>> 769 769 <a href="#abnf.dependencies" class="smpl">partial-URI</a> = <partial-URI, defined in <a href="#Part1" id="rfc.xref.Part1.13"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#uri" title="Uniform Resource Identifiers">Section 2.7</a>> 770 770 <a href="#abnf.dependencies" class="smpl">product</a> = <product, defined in <a href="#Part1" id="rfc.xref.Part1.14"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#product.tokens" title="Product Tokens">Section 5.2</a>> … … 867 867 with "X-" if they are to be registered (either immediately or in the future). 868 868 </p> 869 <p id="rfc.section.3.1.p.3">New header field values typically have their syntax defined using ABNF (<a href="#RFC5234" id="rfc.xref.RFC5234.3"><cite title="Augmented BNF for Syntax Specifications: ABNF">[RFC5234]</cite></a>), using the extension s defined in <a href="p1-messaging.html#notation.abnf" title="ABNF Extension: #rule">Section 1.2.1</a> of <a href="#Part1" id="rfc.xref.Part1.19"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> as necessary, and are usually constrained to the range of ASCII characters. Header fields needing a greater range of characters869 <p id="rfc.section.3.1.p.3">New header field values typically have their syntax defined using ABNF (<a href="#RFC5234" id="rfc.xref.RFC5234.3"><cite title="Augmented BNF for Syntax Specifications: ABNF">[RFC5234]</cite></a>), using the extension defined in <a href="p1-messaging.html#abnf.extension" title="ABNF list extension: #rule">Section 3.2.5</a> of <a href="#Part1" id="rfc.xref.Part1.19"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> as necessary, and are usually constrained to the range of ASCII characters. Header fields needing a greater range of characters 870 870 can use an encoding such as the one defined in <a href="#RFC5987" id="rfc.xref.RFC5987.1"><cite title="Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters">[RFC5987]</cite></a>. 871 871 </p> 872 872 <p id="rfc.section.3.1.p.4">Because commas (",") are used as a generic delimiter between field-values, they need to be treated with care if they are allowed 873 873 in the field-value's payload. Typically, components that might contain a comma are protected with double-quotes using the 874 quoted-string ABNF production (<a href="p1-messaging.html#field. rules" title="Common Field ABNF Rules">Section 3.2.3</a> of <a href="#Part1" id="rfc.xref.Part1.20"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>).874 quoted-string ABNF production (<a href="p1-messaging.html#field.components" title="Field value components">Section 3.2.4</a> of <a href="#Part1" id="rfc.xref.Part1.20"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>). 875 875 </p> 876 876 <p id="rfc.section.3.1.p.5">For example, a textual date and a URI (either of which might contain a comma) could be safely carried in field-values like … … 1707 1707 <div id="rfc.iref.s.7"></div> 1708 1708 <h3 id="rfc.section.7.2.4"><a href="#rfc.section.7.2.4">7.2.4</a> <a id="status.203" href="#status.203">203 Non-Authoritative Information</a></h3> 1709 <p id="rfc.section.7.2.4.p.1">The representation in the response has been transformed or otherwise modified by a transforming proxy (<a href="p1-messaging.html#intermediaries" title="Intermediaries">Section 2. 4</a> of <a href="#Part1" id="rfc.xref.Part1.34"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>). Note that the behavior of transforming intermediaries is controlled by the no-transform Cache-Control directive (<a href="p6-cache.html#header.cache-control" title="Cache-Control">Section 3.2</a> of <a href="#Part6" id="rfc.xref.Part6.12"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).1709 <p id="rfc.section.7.2.4.p.1">The representation in the response has been transformed or otherwise modified by a transforming proxy (<a href="p1-messaging.html#intermediaries" title="Intermediaries">Section 2.3</a> of <a href="#Part1" id="rfc.xref.Part1.34"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>). Note that the behavior of transforming intermediaries is controlled by the no-transform Cache-Control directive (<a href="p6-cache.html#header.cache-control" title="Cache-Control">Section 3.2</a> of <a href="#Part6" id="rfc.xref.Part6.12"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>). 1710 1710 </p> 1711 1711 <p id="rfc.section.7.2.4.p.2">This status code is only appropriate when the response status code would have been 200 (OK) otherwise. When the status code … … 3624 3624 <li><em>Part1</em> <a href="#rfc.xref.Part1.1">1</a>, <a href="#rfc.xref.Part1.2">1.1</a>, <a href="#rfc.xref.Part1.3">1.2</a>, <a href="#rfc.xref.Part1.4">1.2.1</a>, <a href="#rfc.xref.Part1.5">1.2.1</a>, <a href="#rfc.xref.Part1.6">1.2.1</a>, <a href="#rfc.xref.Part1.7">1.2.1</a>, <a href="#rfc.xref.Part1.8">1.2.1</a>, <a href="#rfc.xref.Part1.9">1.2.1</a>, <a href="#rfc.xref.Part1.10">1.2.1</a>, <a href="#rfc.xref.Part1.11">1.2.2</a>, <a href="#rfc.xref.Part1.12">1.2.2</a>, <a href="#rfc.xref.Part1.13">1.2.2</a>, <a href="#rfc.xref.Part1.14">1.2.2</a>, <a href="#rfc.xref.Part1.15">1.2.2</a>, <a href="#rfc.xref.Part1.16">2</a>, <a href="#rfc.xref.Part1.17">2.2.1</a>, <a href="#rfc.xref.Part1.18">3</a>, <a href="#rfc.xref.Part1.19">3.1</a>, <a href="#rfc.xref.Part1.20">3.1</a>, <a href="#rfc.xref.Part1.21">3.1</a>, <a href="#rfc.xref.Part1.22">3.1</a>, <a href="#rfc.xref.Part1.23">3.1</a>, <a href="#rfc.xref.Part1.24">3.2</a>, <a href="#rfc.xref.Part1.25">3.2</a>, <a href="#rfc.xref.Part1.26">3.3</a>, <a href="#rfc.xref.Part1.27">5</a>, <a href="#rfc.xref.Part1.28">5.1</a>, <a href="#rfc.xref.Part1.29">6.8</a>, <a href="#rfc.xref.Part1.30">6.8</a>, <a href="#rfc.xref.Part1.31">6.9</a>, <a href="#rfc.xref.Part1.32">7.1.1</a>, <a href="#rfc.xref.Part1.33">7.1.2</a>, <a href="#rfc.xref.Part1.34">7.2.4</a>, <a href="#rfc.xref.Part1.35">7.2.6</a>, <a href="#rfc.xref.Part1.36">7.4.19</a>, <a href="#rfc.xref.Part1.37">7.5.6</a>, <a href="#rfc.xref.Part1.38">9.3</a>, <a href="#rfc.xref.Part1.39">9.9</a>, <a href="#rfc.xref.Part1.40">9.9</a>, <a href="#rfc.xref.Part1.41">9.9</a>, <a href="#rfc.xref.Part1.42">9.10</a>, <a href="#rfc.xref.Part1.43">9.10</a>, <a href="#rfc.xref.Part1.44">12</a>, <a href="#Part1"><b>13.1</b></a>, <a href="#rfc.xref.Part1.45">A</a><ul> 3625 3625 <li><em>Section 1.2</em> <a href="#rfc.xref.Part1.3">1.2</a></li> 3626 <li><em>Section 1.2.1</em> <a href="#rfc.xref.Part1.19">3.1</a></li>3627 <li><em>Section 1.2.2</em> <a href="#rfc.xref.Part1.5">1.2.1</a>, <a href="#rfc.xref.Part1.6">1.2.1</a>, <a href="#rfc.xref.Part1.7">1.2.1</a>, <a href="#rfc.xref.Part1.8">1.2.1</a></li>3628 3626 <li><em>Section 2</em> <a href="#rfc.xref.Part1.2">1.1</a></li> 3629 <li><em>Section 2. 4</em> <a href="#rfc.xref.Part1.34">7.2.4</a></li>3627 <li><em>Section 2.3</em> <a href="#rfc.xref.Part1.34">7.2.4</a></li> 3630 3628 <li><em>Section 2.6</em> <a href="#rfc.xref.Part1.37">7.5.6</a></li> 3631 3629 <li><em>Section 2.7</em> <a href="#rfc.xref.Part1.11">1.2.2</a>, <a href="#rfc.xref.Part1.13">1.2.2</a>, <a href="#rfc.xref.Part1.15">1.2.2</a></li> 3632 3630 <li><em>Section 3.1.1.2</em> <a href="#rfc.xref.Part1.31">6.9</a></li> 3631 <li><em>Section 3.2.1</em> <a href="#rfc.xref.Part1.5">1.2.1</a>, <a href="#rfc.xref.Part1.6">1.2.1</a>, <a href="#rfc.xref.Part1.7">1.2.1</a></li> 3633 3632 <li><em>Section 3.2</em> <a href="#rfc.xref.Part1.18">3</a>, <a href="#rfc.xref.Part1.21">3.1</a>, <a href="#rfc.xref.Part1.40">9.9</a>, <a href="#rfc.xref.Part1.43">9.10</a></li> 3634 <li><em>Section 3.2.3</em> <a href="#rfc.xref.Part1.9">1.2.1</a>, <a href="#rfc.xref.Part1.10">1.2.1</a>, <a href="#rfc.xref.Part1.12">1.2.2</a>, <a href="#rfc.xref.Part1.20">3.1</a></li> 3633 <li><em>Section 3.2.4</em> <a href="#rfc.xref.Part1.8">1.2.1</a>, <a href="#rfc.xref.Part1.9">1.2.1</a>, <a href="#rfc.xref.Part1.10">1.2.1</a>, <a href="#rfc.xref.Part1.12">1.2.2</a>, <a href="#rfc.xref.Part1.20">3.1</a></li> 3634 <li><em>Section 3.2.5</em> <a href="#rfc.xref.Part1.19">3.1</a></li> 3635 3635 <li><em>Section 3.3</em> <a href="#rfc.xref.Part1.17">2.2.1</a>, <a href="#rfc.xref.Part1.27">5</a>, <a href="#rfc.xref.Part1.35">7.2.6</a></li> 3636 3636 <li><em>Section 4.3</em> <a href="#rfc.xref.Part1.16">2</a>, <a href="#rfc.xref.Part1.26">3.3</a>, <a href="#rfc.xref.Part1.28">5.1</a></li>
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