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Changeset 661 for draft-ietf-httpbis/latest/p1-messaging.html
- Timestamp:
- 31/07/09 06:59:38 (13 years ago)
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draft-ietf-httpbis/latest/p1-messaging.html (modified) (9 diffs)
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draft-ietf-httpbis/latest/p1-messaging.html
r660 r661 465 465 <tr> 466 466 <td class="header left"></td> 467 <td class="header right">July 3 0, 2009</td>467 <td class="header right">July 31, 2009</td> 468 468 </tr> 469 469 </table> … … 671 671 MIME-like message payloads for flexible interaction with network-based hypertext information systems. HTTP relies upon the 672 672 Uniform Resource Identifier (URI) standard <a href="#RFC3986" id="rfc.xref.RFC3986.1"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a> to indicate request targets and relationships between resources. Messages are passed in a format similar to that used by Internet 673 mail <a href="#RFC5322" id="rfc.xref.RFC5322.1"><cite title="Internet Message Format">[RFC5322]</cite></a> and the Multipurpose Internet Mail Extensions (MIME) <a href="#RFC2045" id="rfc.xref.RFC2045.1"><cite title="Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies">[RFC2045]</cite></a> (see <a href="p3-payload.html#differences.between.http.entities.and.rfc.2045.entities" title=" ERROR: Anchor 'differences.between.http.entities.and.rfc.2045.entities' not found in p3-payload.xml.">Appendix ERROR: Anchor 'differences.between.http.entities.and.rfc.2045.entities' not found in p3-payload.xml.</a> of <a href="#Part3" id="rfc.xref.Part3.1"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a> for the differences between HTTP and MIME messages).673 mail <a href="#RFC5322" id="rfc.xref.RFC5322.1"><cite title="Internet Message Format">[RFC5322]</cite></a> and the Multipurpose Internet Mail Extensions (MIME) <a href="#RFC2045" id="rfc.xref.RFC2045.1"><cite title="Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies">[RFC2045]</cite></a> (see <a href="p3-payload.html#differences.between.http.entities.and.rfc.2045.entities" title="Differences Between HTTP Entities and RFC 2045 Entities">Appendix A</a> of <a href="#Part3" id="rfc.xref.Part3.1"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a> for the differences between HTTP and MIME messages). 674 674 </p> 675 675 <p id="rfc.section.1.p.2">HTTP is a generic interface protocol for information systems. It is designed to hide the details of how a service is implemented … … 742 742 <div id="rule.CRLF"> 743 743 <p id="rfc.section.1.2.2.p.1"> HTTP/1.1 defines the sequence CR LF as the end-of-line marker for all protocol elements except the entity-body (see <a href="#tolerant.applications" title="Tolerant Applications">Appendix A</a> for tolerant applications). The end-of-line marker within an entity-body is defined by its associated media type, as described 744 in <a href="p3-payload.html#media.types" title=" ERROR: Anchor 'media.types' not found in p3-payload.xml.">Appendix ERROR: Anchor 'media.types' not found in p3-payload.xml.</a> of <a href="#Part3" id="rfc.xref.Part3.2"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>.744 in <a href="p3-payload.html#media.types" title="Media Types">Section 2.3</a> of <a href="#Part3" id="rfc.xref.Part3.2"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>. 745 745 </p> 746 746 </div> … … 795 795 <div id="rfc.figure.u.9"></div><pre class="inline"> <a href="#abnf.dependencies" class="smpl">request-header</a> = <request-header, defined in <a href="#Part2" id="rfc.xref.Part2.1"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#request.header.fields" title="Request Header Fields">Section 3</a>> 796 796 <a href="#abnf.dependencies" class="smpl">response-header</a> = <response-header, defined in <a href="#Part2" id="rfc.xref.Part2.2"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#response.header.fields" title="Response Header Fields">Section 5</a>> 797 </pre><div id="rfc.figure.u.10"></div><pre class="inline"> <a href="#abnf.dependencies" class="smpl">entity-body</a> = <entity-body, defined in <a href="#Part3" id="rfc.xref.Part3.3"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.body" title="E RROR: Anchor 'entity.body' not found in p3-payload.xml.">Appendix ERROR: Anchor 'entity.body' not found in p3-payload.xml.</a>>798 <a href="#abnf.dependencies" class="smpl">entity-header</a> = <entity-header, defined in <a href="#Part3" id="rfc.xref.Part3.4"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="E RROR: Anchor 'entity.header.fields' not found in p3-payload.xml.">Appendix ERROR: Anchor 'entity.header.fields' not found in p3-payload.xml.</a>>797 </pre><div id="rfc.figure.u.10"></div><pre class="inline"> <a href="#abnf.dependencies" class="smpl">entity-body</a> = <entity-body, defined in <a href="#Part3" id="rfc.xref.Part3.3"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.body" title="Entity Body">Section 3.2</a>> 798 <a href="#abnf.dependencies" class="smpl">entity-header</a> = <entity-header, defined in <a href="#Part3" id="rfc.xref.Part3.4"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 3.1</a>> 799 799 </pre><div id="rfc.figure.u.11"></div><pre class="inline"> <a href="#abnf.dependencies" class="smpl">Cache-Control</a> = <Cache-Control, defined in <a href="#Part6" id="rfc.xref.Part6.1"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.pragma" title="Pragma">Section 3.4</a>> 800 800 <a href="#abnf.dependencies" class="smpl">Pragma</a> = <Pragma, defined in <a href="#Part6" id="rfc.xref.Part6.2"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.pragma" title="Pragma">Section 3.4</a>> … … 1221 1221 *(( <a href="#general.header.fields" class="smpl">general-header</a> ; <a href="#general.header.fields" title="General Header Fields">Section 2.7.5</a> 1222 1222 / <a href="#abnf.dependencies" class="smpl">request-header</a> ; <a href="#Part2" id="rfc.xref.Part2.3"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#request.header.fields" title="Request Header Fields">Section 3</a> 1223 / <a href="#abnf.dependencies" class="smpl">entity-header</a> ) <a href="#core.rules" class="smpl">CRLF</a> ) ; <a href="#Part3" id="rfc.xref.Part3.5"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="E RROR: Anchor 'entity.header.fields' not found in p3-payload.xml.">Appendix ERROR: Anchor 'entity.header.fields' not found in p3-payload.xml.</a>1223 / <a href="#abnf.dependencies" class="smpl">entity-header</a> ) <a href="#core.rules" class="smpl">CRLF</a> ) ; <a href="#Part3" id="rfc.xref.Part3.5"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 3.1</a> 1224 1224 <a href="#core.rules" class="smpl">CRLF</a> 1225 1225 [ <a href="#message.body" class="smpl">message-body</a> ] ; <a href="#message.body" title="Message Body">Section 2.7.3</a> … … 1313 1313 *(( <a href="#general.header.fields" class="smpl">general-header</a> ; <a href="#general.header.fields" title="General Header Fields">Section 2.7.5</a> 1314 1314 / <a href="#abnf.dependencies" class="smpl">response-header</a> ; <a href="#Part2" id="rfc.xref.Part2.6"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#response.header.fields" title="Response Header Fields">Section 5</a> 1315 / <a href="#abnf.dependencies" class="smpl">entity-header</a> ) <a href="#core.rules" class="smpl">CRLF</a> ) ; <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="E RROR: Anchor 'entity.header.fields' not found in p3-payload.xml.">Appendix ERROR: Anchor 'entity.header.fields' not found in p3-payload.xml.</a>1315 / <a href="#abnf.dependencies" class="smpl">entity-header</a> ) <a href="#core.rules" class="smpl">CRLF</a> ) ; <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 3.1</a> 1316 1316 <a href="#core.rules" class="smpl">CRLF</a> 1317 1317 [ <a href="#message.body" class="smpl">message-body</a> ] ; <a href="#message.body" title="Message Body">Section 2.7.3</a> … … 1447 1447 </p> 1448 1448 <p id="rfc.section.2.10.2.p.8">The Internet Assigned Numbers Authority (IANA) acts as a registry for transfer-coding value tokens. Initially, the registry 1449 contains the following tokens: "chunked" (<a href="#chunked.transfer.encoding" title="Chunked Transfer Coding">Section 2.10.2.1</a>), "gzip", "compress", and "deflate" (<a href="p3-payload.html#content.codings" title=" ERROR: Anchor 'content.codings' not found in p3-payload.xml.">Appendix ERROR: Anchor 'content.codings' not found in p3-payload.xml.</a> of <a href="#Part3" id="rfc.xref.Part3.7"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>).1450 </p> 1451 <p id="rfc.section.2.10.2.p.9">New transfer-coding value tokens <em class="bcp14">SHOULD</em> be registered in the same way as new content-coding value tokens (<a href="p3-payload.html#content.codings" title=" ERROR: Anchor 'content.codings' not found in p3-payload.xml.">Appendix ERROR: Anchor 'content.codings' not found in p3-payload.xml.</a> of <a href="#Part3" id="rfc.xref.Part3.8"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>).1449 contains the following tokens: "chunked" (<a href="#chunked.transfer.encoding" title="Chunked Transfer Coding">Section 2.10.2.1</a>), "gzip", "compress", and "deflate" (<a href="p3-payload.html#content.codings" title="Content Codings">Section 2.2</a> of <a href="#Part3" id="rfc.xref.Part3.7"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>). 1450 </p> 1451 <p id="rfc.section.2.10.2.p.9">New transfer-coding value tokens <em class="bcp14">SHOULD</em> be registered in the same way as new content-coding value tokens (<a href="p3-payload.html#content.codings" title="Content Codings">Section 2.2</a> of <a href="#Part3" id="rfc.xref.Part3.8"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>). 1452 1452 </p> 1453 1453 <p id="rfc.section.2.10.2.p.10">A server which receives an entity-body with a transfer-coding it does not understand <em class="bcp14">SHOULD</em> return 501 (Not Implemented), and close the connection. A server <em class="bcp14">MUST NOT</em> send transfer-codings to an HTTP/1.0 client. … … 1526 1526 </p> 1527 1527 <h3 id="rfc.section.2.10.4"><a href="#rfc.section.2.10.4">2.10.4</a> <a id="quality.values" href="#quality.values">Quality Values</a></h3> 1528 <p id="rfc.section.2.10.4.p.1">Both transfer codings (TE request header, <a href="#header.te" id="rfc.xref.header.te.3" title="TE">Section 3.5</a>) and content negotiation (<a href="p3-payload.html#content.negotiation" title=" ERROR: Anchor 'content.negotiation' not found in p3-payload.xml.">Appendix ERROR: Anchor 'content.negotiation' not found in p3-payload.xml.</a> of <a href="#Part3" id="rfc.xref.Part3.9"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) use short "floating point" numbers to indicate the relative importance ("weight") of various negotiable parameters. A weight1528 <p id="rfc.section.2.10.4.p.1">Both transfer codings (TE request header, <a href="#header.te" id="rfc.xref.header.te.3" title="TE">Section 3.5</a>) and content negotiation (<a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 4</a> of <a href="#Part3" id="rfc.xref.Part3.9"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) use short "floating point" numbers to indicate the relative importance ("weight") of various negotiable parameters. A weight 1529 1529 is normalized to a real number in the range 0 through 1, where 0 is the minimum and 1 the maximum value. If a parameter has 1530 1530 a quality value of 0, then content with this parameter is `not acceptable' for the client. HTTP/1.1 applications <em class="bcp14">MUST NOT</em> generate more than three digits after the decimal point. User configuration of these values <em class="bcp14">SHOULD</em> also be limited in this fashion. … … 3241 3241 </li> 3242 3242 <li class="indline1"><em>Part3</em> <a class="iref" href="#rfc.xref.Part3.1">1</a>, <a class="iref" href="#rfc.xref.Part3.2">1.2.2</a>, <a class="iref" href="#rfc.xref.Part3.3">1.2.3</a>, <a class="iref" href="#rfc.xref.Part3.4">1.2.3</a>, <a class="iref" href="#rfc.xref.Part3.5">2.8</a>, <a class="iref" href="#rfc.xref.Part3.6">2.9</a>, <a class="iref" href="#rfc.xref.Part3.7">2.10.2</a>, <a class="iref" href="#rfc.xref.Part3.8">2.10.2</a>, <a class="iref" href="#rfc.xref.Part3.9">2.10.4</a>, <a class="iref" href="#Part3"><b>7.1</b></a>, <a class="iref" href="#rfc.xref.Part3.10">A</a>, <a class="iref" href="#rfc.xref.Part3.11">B.3</a><ul class="ind"> 3243 <li class="indline1"><em> Appendix </em> <a class="iref" href="#rfc.xref.Part3.1">1</a></li>3244 <li class="indline1"><em> Appendix</em> <a class="iref" href="#rfc.xref.Part3.2">1.2.2</a></li>3245 <li class="indline1"><em> Appendix </em> <a class="iref" href="#rfc.xref.Part3.3">1.2.3</a></li>3246 <li class="indline1"><em> Appendix </em> <a class="iref" href="#rfc.xref.Part3.4">1.2.3</a>, <a class="iref" href="#rfc.xref.Part3.5">2.8</a>, <a class="iref" href="#rfc.xref.Part3.6">2.9</a></li>3247 <li class="indline1"><em> Appendix </em> <a class="iref" href="#rfc.xref.Part3.7">2.10.2</a>, <a class="iref" href="#rfc.xref.Part3.8">2.10.2</a></li>3248 <li class="indline1"><em>Appendix </em> <a class="iref" href="#rfc.xref.Part3.9">2.10.4</a></li>3243 <li class="indline1"><em>Section 2.2</em> <a class="iref" href="#rfc.xref.Part3.7">2.10.2</a>, <a class="iref" href="#rfc.xref.Part3.8">2.10.2</a></li> 3244 <li class="indline1"><em>Section 2.3</em> <a class="iref" href="#rfc.xref.Part3.2">1.2.2</a></li> 3245 <li class="indline1"><em>Section 3.1</em> <a class="iref" href="#rfc.xref.Part3.4">1.2.3</a>, <a class="iref" href="#rfc.xref.Part3.5">2.8</a>, <a class="iref" href="#rfc.xref.Part3.6">2.9</a></li> 3246 <li class="indline1"><em>Section 3.2</em> <a class="iref" href="#rfc.xref.Part3.3">1.2.3</a></li> 3247 <li class="indline1"><em>Section 4</em> <a class="iref" href="#rfc.xref.Part3.9">2.10.4</a></li> 3248 <li class="indline1"><em>Appendix A</em> <a class="iref" href="#rfc.xref.Part3.1">1</a></li> 3249 3249 </ul> 3250 3250 </li>
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