Network Working GroupJ. Reschke
Internet-Draftgreenbytes
Updates: free online chat with astrologer in hindi (if approved)October 16, 2006
Intended status: Experimental
Expires: April 19, 2007

live chat for website The Hypertext Transfer Protocol (HTTP) Entity Tag ("ETag") Response Header in Write Operations

draft-reschke-http-etag-on-write-03

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free iranian chat room in uk The Hypertext Transfer Protocol (HTTP) specifies a state identifier, called "Entity Tag", to be returned in the "ETag" response header. However, the description of this header for write operations such as PUT is incomplete, and has caused confusion among developers and protocol designers, and potentially interoperability problems.free online chatting

iranianuk chat room free This document explains the problem in detail and suggests both a clarification for a revision to the HTTP/1.1 specification (RFC2616) and a new header for use in responses, making HTTP entity tags more useful for user agents that want to avoid round-trips to the server after modifying a resource.free quick online chat rooms

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IdTypeStatusDateRaised By
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partnersuche für teenager filme [email protected]2006-08-10 Umbrella issue for editorial fixes/enhancements.
Associated changes in this document: malaysian free online chat, free online chat room malaysia, how to write a good personal profile for online dating, free chat room iran.
free live chat services for websites clarify-extensibility   (type: edit, status: closed)
free online chat app [email protected]2006-10-12 Clarify the extension point.
2006-10-12Resolution: Clarify that future revisions of this specification may define keywords other than the two defined here, and that the only one specifiying octet-by-octet equivalence is "identity".
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online immigration attorney chat The Hypertext Transfer Protocol (HTTP) specifies a state identifier, called "Entity Tag", to be returned in the "ETag" response header (see [RFC2616], how to make money on a dating site). However, the description of this header for write operations such as PUT is incomplete, and has caused confusion among developers and protocol designers, and potentially interoperability problems.online free chat apps

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canada immigration lawyer online chat Note that there is a related problem: modifying content-negotiated resources. Here the consensus seems to be simply not to do it. Instead, the origin server should reveal specific URIs of content that is not content-negotiated in the Content-Location response header ([RFC2616], free online chat rooms in pakistan.org), and user agents should use this more specific URI for authoring. Thus, the remainder of this document will focus on resources for which no content negotiation takes place.free homework help online chat math

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  • A server may not store a resource as a binary object - in this case, the representation returned in a subsequent GET request may just be similar, but not identical to what was written. Good examples are servers that use HTTP to access XML data ([XCAP]), Calendaring data ([CALDAV]) or newsfeed data ([APP]).
  • A server may change the data being written on purpose, while it's being written. Examples that immediately come to mind are keyword substitution in a source control system, or filters that remove potentially insecure parts out of HTML pages.

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  • An "unrelated" method such as WebDAV's PROPPATCH (see [RFC2518], free live chat legal advice) may affect the entity body and therefore the entity tag in an unexpected way, because the server stores some or all of the WebDAV properties inside the entity body (for instance, GPS information inside a JPG image file).

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t(e2(e1(c))) = t(e2(t(e1(c))))

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writing a great online dating email While working on the revision of [RFC2518], the IETF WebDAV working group realized that this is a generic problem that needs attention independently of WebDAV. An initial attempt was made with [draft-whitehead-http-etag] in February 2006, but no progress was made since.partnersuche mit handicap rechner

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free online chat script for website In essence, this makes it impossible to implement an HTTP resource that conforms to both specifications. Due to the differing use cases of XCAP and CalDAV, this may not be a problem in practice, but the disagreement in itself is scary. Publication of these specifications on the standards track will make it much harder for future protocols to deal with this topic in a meaningful way (comments were sent during IETF Last Call for CalDAV, see <free chat and meet>).single kennenlernen app

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free web chat for website The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL-NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].how to write a short bio for dating

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Entity-Transform = "Entity-Transform" ":" entity-transform-spec
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  • Note: usage of keywords other than "identity" or "unspecified" is reserved for future revisisions of this specification.

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HTTP/1.1 200 OK
ETag: "1"
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HTTP/1.1 200 OK
ETag: "2"
Entity-Transform: unspecified "2"

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HTTP/1.1 200 OK
ETag: "3"
Entity-Transform: unspecified "2"

beste dating portale randkowe Note that in this case the newly assigned entity tag and the entity tag returned in "Entity-Transform" do not match, thus the client is aware that the header value is stale and can't be used.

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gute und günstige partnervermittlung The clarification of [RFC2616] (see christliche partnervermittlung österreich vergleich) makes it clear that user agents can use "ETag" headers obtained in write operations, as long as they do not require octet-by-octet identity. In particular, a new entity tag can be returned for any method, such as a WebDAV PROPPATCH (see [RFC2518], free online chat with skin specialist. This helps dealing with the problem described in single im internet kennenlernen. See yahoo chat room without messenger for details.free homework help chat

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Header field name:
Entity-Transform
Applicable protocol:
http
Status:
informational
Author/Change controller:
IETF
Specification document:
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partnersuche de gutschein code Normative References

[RFC2119]
free voice chat in karachi, “free chat dude in karachi”, BCP 14, RFC 2119, March 1997.
[RFC2616]
partnersuche für teenager jungs, partnersuche kostenlos hessen yoga, online doctor chat live, christliche singlebörsen preise, christliche singlebörsen preisvergleich, la blue partnersuche login neu, and web chat sites like skype, “free online instant messaging chat”, RFC 2616, June 1999.

free online instant messaging dating Informative References

[APP]
partnersuche de gutschein kaufen and japanische partnersuche vergleich, “single kanada kennenlernen”, Internet-Draft draft-ietf-atompub-protocol-10 (work in progress), September 2006.
[APP]
japanische partnersuche osteuropa and online pc chat help, “partnersuche für teenager probleme”, Internet-Draft draft-ietf-atompub-protocol-11 (work in progress), October 2006.
[CALDAV]
japanische partnersuche kostenlos, free chat messenger in india, and chat dating kostenlos test, “partnersuche für teenager zimmer”, Internet-Draft draft-dusseault-caldav-15 (work in progress), September 2006.
[draft-whitehead-http-etag]
free online homework help chat, “free chat rooms saudi arabia”, Internet-Draft draft-whitehead-http-etag-00 (work in progress), February 2006.
(As of October 2006, there didn't appear to be any activity related to this draft.)
[HTML]
online yahoo chat rooms india, Hors, A., and I. Jacobs, “online yahoo chat room pakistan”, W3C REC-html401-19991224, December 1999, <traumfrau gesucht partnervermittlung brasilien>.
[RFC2518]
partnersuche de gutschein quelle, christliche singlebörsen wien, how to make money from a dating website, how to make money from a dating site, and how to make dating profile interesting, “how to make dating profile stand out”, RFC 2518, February 1999.
[XCAP]
chat dating kostenlos vergleich, “single kennenlernen ohne registrierung”, Internet-Draft draft-ietf-simple-xcap-11 (work in progress), May 2006.

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single kennenlernen schweiz >> Request (1)

GET /test HTTP/1.1
Host: example.com

partnersuche paraguay deutschland >> Response (1)

HTTP/1.1 200 OK
Content-Type: text/plain
ETag: "1"

# $Revision: 1 $
Sample text.

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PUT /test HTTP/1.1
Host: example.com
If-Match: "1"

# $Revision: 1 $
New sample text.

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yahoo chat rooms indianapolis >> Response (2a)

HTTP/1.1 412 Precondition Failed
Content-Type: text/plain

Precondition Failed: entity tag supplied in If-Match request header
did not match current.

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yahoo chat rooms india punjab >> Response (2b)

HTTP/1.1 200 OK
Content-Type: text/plain
ETag: "2"

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# $Revision: 2 $
New sample text.

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PUT /test HTTP/1.1
Host: example.com
If-Match: "2"

# $Revision: 1 $
A third attempt.

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free english homework help chat >> Response (3)

HTTP/1.1 200 OK
Content-Type: text/plain
ETag: "3"

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# $Revision: 3 $
A third attempt.

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GET /test.html HTTP/1.1
Host: example.com

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HTTP/1.1 200 OK
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ETag: "A"

<html>
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  </head>
  <body>
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PUT /test.html HTTP/1.1
Host: example.com
If-Match: "A"

<html>
  <head>
  </head>
  <body>
    <p>First paragraph.</p>
  </body>
</html>

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HTTP/1.1 200 OK
ETag: "B"

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how to make money online dating >> Request (3)

PROPPATCH /test.html HTTP/1.1
Host: example.com
Content-Type: application/xml

<proppatch xmlns="DAV:">
  <set>
    <prop>
      <title xmlns="http://ns.example.org/">
        A sample document
      </title>
    </prop>
  </set>
</proppatch>

online local chat lines >> Response (3)

HTTP/1.1 207 Multi-Status
Content-Type: application/xml

<multistatus xmlns="DAV:">
  <response>
    <href>/test.html</href>
    <propstat>
      <prop>
        <title xmlns="http://ns.example.org/"/>
      </prop>
      <status>HTTP/1.1 2OO OK</status>
    </propstat>
  </response>
</multistatus>

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<html>
  <head>
    <title>A sample document</title>
  </head>
  <body>
    <p>First paragraph.</p>
  </body>
</html>

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singles chat schweiz jobs >> Request (3)

PROPPATCH /test.html HTTP/1.1
Host: example.com
Content-Type: application/xml

<proppatch xmlns="DAV:">
  <set>
    <prop>
      <title xmlns="http://ns.example.org/">
        A sample document
      </title>
    </prop>
  </set>
</proppatch>

how to write a profile on yourself for online dating >> Response (3)

HTTP/1.1 207 Multi-Status
Content-Type: application/xml
ETag: "C"

<multistatus xmlns="DAV:">
  <response>
    <href>/test.html</href>
    <propstat>
      <prop>
        <title xmlns="http://ns.example.org/"/>
      </prop>
      <status>HTTP/1.1 2OO OK</status>
    </propstat>
  </response>
</multistatus>

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