Changeset 1172

Timestamp:

Mar 13, 2011, 12:18:50 AM (9 years ago)

Author:

fielding@…

Message:

editorial: remove inappropriate implementation details from
the definition of last-modified.

Location:

draft-ietf-httpbis/latest

Files:

• p4-conditional.html (modified) (6 diffs)
• p4-conditional.xml (modified) (1 diff)

draft-ietf-httpbis/latest/p4-conditional.html

@@ -359 +359 @@
   } 
   @bottom-center {
-       content: "Expires September 12, 2011"; 
+       content: "Expires September 14, 2011"; 
   } 
   @bottom-right {
@@ -406 +406 @@
       <meta name="dct.creator" content="Reschke, J. F.">
       <meta name="dct.identifier" content="urn:ietf:id:draft-ietf-httpbis-p4-conditional-latest">
-      <meta name="dct.issued" scheme="ISO8601" content="2011-03-11">
+      <meta name="dct.issued" scheme="ISO8601" content="2011-03-13">
       <meta name="dct.replaces" content="urn:ietf:rfc:2616">
       <meta name="dct.abstract" content="The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems. HTTP has been in use by the World Wide Web global information initiative since 1990. This document is Part 4 of the seven-part specification that defines the protocol referred to as &#34;HTTP/1.1&#34; and, taken together, obsoletes RFC 2616. Part 4 defines request header fields for indicating conditional requests and the rules for constructing responses to those requests.">
@@ -432 +432 @@
             </tr>
             <tr>
-               <td class="left">Expires: September 12, 2011</td>
+               <td class="left">Expires: September 14, 2011</td>
                <td class="right">J. Mogul</td>
             </tr>
@@ -489 +489 @@
             <tr>
                <td class="left"></td>
-               <td class="right">March 11, 2011</td>
+               <td class="right">March 13, 2011</td>
             </tr>
          </tbody>
@@ -515 +515 @@
          in progress”.
       </p>
-      <p>This Internet-Draft will expire on September 12, 2011.</p>
+      <p>This Internet-Draft will expire on September 14, 2011.</p>
       <h1><a id="rfc.copyrightnotice" href="#rfc.copyrightnotice">Copyright Notice</a></h1>
       <p>Copyright © 2011 IETF Trust and the persons identified as the document authors. All rights reserved.</p>
@@ -1074 +1074 @@
 </pre><p id="rfc.section.6.6.p.3">An example of its use is</p>
       <div id="rfc.figure.u.18"></div><pre class="text">  Last-Modified: Tue, 15 Nov 1994 12:45:26 GMT
-</pre><p id="rfc.section.6.6.p.5">The exact meaning of this header field depends on the implementation of the origin server and the nature of the original resource.
-         For files, it might be just the file system last-modified time. For representations with dynamically included parts, it might
-         be the most recent of the set of last-modify times for its component parts. For database gateways, it might be the last-update
-         time stamp of the record. For virtual objects, it might be the last time the internal state changed.
+</pre><p id="rfc.section.6.6.p.5">A representation is typically the sum of many parts behind the resource interface. The last-modified time would usually be
+         the most recent time that any of those parts were changed. How that value is determined for any given resource is an implementation
+         detail beyond the scope of this specification. What matters to HTTP is how recipients of the Last-Modified header field can
+         use its value to make conditional requests and test the validity of locally cached responses.
       </p>
       <p id="rfc.section.6.6.p.6">An origin server <em class="bcp14">MUST NOT</em> send a Last-Modified date which is later than the server's time of message origination. In such cases, where the resource's

draft-ietf-httpbis/latest/p4-conditional.xml

@@ -1066 +1066 @@
 </artwork></figure>
 <t>
-   The exact meaning of this header field depends on the implementation
-   of the origin server and the nature of the original resource. For
-   files, it might be just the file system last-modified time. For
-   representations with dynamically included parts, it might be the most recent
-   of the set of last-modify times for its component parts. For database
-   gateways, it might be the last-update time stamp of the record. For
-   virtual objects, it might be the last time the internal state changed.
+   A representation is typically the sum of many parts behind the
+   resource interface.  The last-modified time would usually be
+   the most recent time that any of those parts were changed.
+   How that value is determined for any given resource is an
+   implementation detail beyond the scope of this specification.
+   What matters to HTTP is how recipients of the Last-Modified
+   header field can use its value to make conditional requests
+   and test the validity of locally cached responses.
 </t>
 <t>