Changeset 2090 for draft-ietf-httpbis/latest/p2-semantics.xml
- Timestamp:
- 05/01/13 13:09:32 (10 years ago)
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draft-ietf-httpbis/latest/p2-semantics.xml
r2089 r2090 207 207 HTTP provides a uniform interface for interacting with a resource 208 208 (<xref target="resources"/>), regardless of its type, nature, or 209 implementation, and for transferring content in message payloads in the210 form of a representation(<xref target="representations"/>).209 implementation, via the manipulation and transfer of representations 210 (<xref target="representations"/>). 211 211 </t> 212 212 <t> … … 486 486 assume a media type of 487 487 "application/octet-stream" (<xref target="RFC2046" x:fmt="," x:sec="4.5.1"/>) 488 or examine the representationdata to determine its type.488 or examine the data to determine its type. 489 489 </t> 490 490 <t> … … 774 774 response message and its field-value refers to a URI that differs from the 775 775 effective request URI, then the origin server claims that the field-value 776 is an identifier for the payload's representation. Such a claim can only be777 trusted if both identifiers share the same resource owner, which cannot be778 programmatically determined via HTTP.776 is an identifier for the representation enclosed as the payload. Such a 777 claim can only be trusted if both identifiers share the same resource 778 owner, which cannot be programmatically determined via HTTP. 779 779 <list style="symbols"> 780 780 <t>For a response to a GET or HEAD request, this is an indication that the … … 813 813 <t> 814 814 For example, if a client makes a PUT request on a negotiated resource and 815 the origin server accepts that PUT (without redirection), then the new set816 of values forthat resource is expected to be consistent with the one815 the origin server accepts that PUT (without redirection), then the new 816 state of that resource is expected to be consistent with the one 817 817 representation supplied in that PUT; the Content-Location cannot be used as 818 818 a form of reverse content selection identifier to update only one of the … … 868 868 <t> 869 869 Likewise, the payload of a <x:ref>200 (OK)</x:ref> response to GET 870 (<xref target="GET"/>) contains a representation of the <x:ref>target resource</x:ref>, 871 as observed at the time of the message origination date 872 (<xref target="header.date"/>), whereas the same status code in a response 873 to POST might contain either a representation of the processing result or 874 a current representation of the target resource after applying the 875 processing. Response messages with an error status code usually contain 876 a representation that describes the error and what next steps are suggested 877 for resolving it. 870 (<xref target="GET"/>) ought to contain a representation of the 871 <x:ref>target resource</x:ref>, as observed at the time of the message 872 origination date (<xref target="header.date"/>), whereas the same status 873 code in a response to POST might contain either a representation of the 874 processing result or a current representation of the target resource after 875 applying the processing. Response messages with an error status code 876 usually contain a representation of the error condition, such that it 877 describes the error state and what next steps are suggested for resolving 878 it. 878 879 </t> 879 880 <t> … … 896 897 <x:anchor-alias value="content negotiation"/> 897 898 <t> 898 When responses convey a representation, whether indicating a success or899 When responses convey payload information, whether indicating a success or 899 900 an error, the origin server often has different ways of representing that 900 901 information; for example, in different formats, languages, or encodings. … … 1288 1289 in the HTTP header fields in response to a HEAD request &SHOULD; be identical 1289 1290 to the information sent in response to a GET request. This method can 1290 be used for obtaining metadata about the representation implied by the1291 requestwithout transferring the representation data. This method is1291 be used for obtaining metadata about the selected representation 1292 without transferring the representation data. This method is 1292 1293 often used for testing hypertext links for validity, accessibility, 1293 1294 and recent modification.
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