RFC5262 日本語訳

Network Working Group                                        M. Lonnfors
Request for Comments: 5262                                         Nokia
Category: Standards Track                                    E. Leppanen
                                                              Individual
                                                            H. Khartabil
                                                      Ericsson Australia
                                                           J. Urpalainen
                                                                   Nokia
                                                          September 2008

Network Working Group M. Lonnfors Request for Comments: 5262 Nokia Category: Standards Track E. Leppanen Individual H. Khartabil Ericsson Australia J. Urpalainen Nokia September 2008

 Presence Information Data Format (PIDF) Extension for Partial Presence

Presence Information Data Format (PIDF) Extension for Partial Presence

Status of This Memo

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Abstract

Abstract

   The Presence Information Document Format (PIDF) specifies the
   baseline XML-based format for describing presence information.  One
   of the characteristics of the PIDF is that the document always needs
   to carry all presence information available for the presentity.  In
   some environments where low bandwidth and high latency links can
   exist, it is often beneficial to limit the amount of transported
   information over the network.  This document introduces a new MIME
   type that enables transporting of either only the changed parts or
   the full PIDF-based presence information.

The Presence Information Document Format (PIDF) specifies the baseline XML-based format for describing presence information. One of the characteristics of the PIDF is that the document always needs to carry all presence information available for the presentity. In some environments where low bandwidth and high latency links can exist, it is often beneficial to limit the amount of transported information over the network. This document introduces a new MIME type that enables transporting of either only the changed parts or the full PIDF-based presence information.

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Table of Contents

Table of Contents

   1. Introduction ....................................................2
   2. Conventions .....................................................3
   3. Structure of PIDF Diff Documents ................................3
      3.1. 'version' Attribute ........................................4
      3.2. 'entity' Attribute .........................................4
   4. Usage of 'application/pidf-diff+xml' ............................4
   5. IANA Considerations .............................................5
      5.1. URN Sub-Namespace Registration for
           'urn:ietf:params:xml:ns:pidf-diff' .........................5
      5.2. application/pidf-diff+xml MIME Type ........................6
      5.3. XML Schema Registration ....................................7
   6. Examples ........................................................8
   7. XML Schema .....................................................11
   8. Interoperability Considerations ................................12
   9. Security Considerations ........................................13
   10. Internationalization Considerations ...........................13
   11. Error Handling ................................................13
   12. Acknowledgments ...............................................13
   13. References ....................................................13
      13.1. Normative references .....................................13
      13.2. Informative references ...................................14

1. Introduction ....................................................2 2. Conventions .....................................................3 3. Structure of PIDF Diff Documents ................................3 3.1. 'version' Attribute ........................................4 3.2. 'entity' Attribute .........................................4 4. Usage of 'application/pidf-diff+xml' ............................4 5. IANA Considerations .............................................5 5.1. URN Sub-Namespace Registration for 'urn:ietf:params:xml:ns:pidf-diff' .........................5 5.2. application/pidf-diff+xml MIME Type ........................6 5.3. XML Schema Registration ....................................7 6. Examples ........................................................8 7. XML Schema .....................................................11 8. Interoperability Considerations ................................12 9. Security Considerations ........................................13 10. Internationalization Considerations ...........................13 11. Error Handling ................................................13 12. Acknowledgments ...............................................13 13. References ....................................................13 13.1. Normative references .....................................13 13.2. Informative references ...................................14

1.  Introduction

1. Introduction

   The Presence Information Document Format (PIDF) [RFC3863] specifies
   the baseline XML-based format for describing presence information.
   One of the characteristics of the PIDF is that the document always
   needs to carry all presence information available for the presentity.
   In some environments where low bandwidth and high latency links can
   exist, it is often beneficial to limit the amount of transported
   information over the network.

The Presence Information Document Format (PIDF) [RFC3863] specifies the baseline XML-based format for describing presence information. One of the characteristics of the PIDF is that the document always needs to carry all presence information available for the presentity. In some environments where low bandwidth and high latency links can exist, it is often beneficial to limit the amount of transported information over the network.

   This document introduces a new MIME-Type 'application/pidf-diff+xml',
   which enables transporting of either only the changed parts or the
   full PIDF based presence information.  The root element of the
   document distinguishes whether the partial or full PIDF document
   content was transported.

This document introduces a new MIME-Type 'application/pidf-diff+xml', which enables transporting of either only the changed parts or the full PIDF based presence information. The root element of the document distinguishes whether the partial or full PIDF document content was transported.

      Note: With this new MIME-Type, applications can easily negotiate
      the support of partial updates of presence by using the Accept
      header.  If PIDF had initially been designed for partial updates,
      a new separate MIME-Type would have been unnecessary.

Note: With this new MIME-Type, applications can easily negotiate the support of partial updates of presence by using the Accept header. If PIDF had initially been designed for partial updates, a new separate MIME-Type would have been unnecessary.

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2.  Conventions

2. Conventions

   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 RFC 2119 [RFC2119] and
   indicate requirement levels for compliant implementations.

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 RFC 2119 [RFC2119] and indicate requirement levels for compliant implementations.

   This memo makes use of the vocabulary defined in RFC 2778 [RFC2778].
   In addition, the following terms are defined:

This memo makes use of the vocabulary defined in RFC 2778 [RFC2778]. In addition, the following terms are defined:

   Full presence document:  A presence document that contains all the
      presentity's presence information that is available to a
      particular watcher.

Full presence document: A presence document that contains all the presentity's presence information that is available to a particular watcher.

   Partial presence document:  A presence document that represents a
      fragment of the full presence document.  A partial presence
      document can only be understood in the context of the full
      presence document, i.e., a partial presence document modifies a
      cached copy of the full presence document.

Partial presence document: A presence document that represents a fragment of the full presence document. A partial presence document can only be understood in the context of the full presence document, i.e., a partial presence document modifies a cached copy of the full presence document.

3.  Structure of PIDF Diff Documents

3. Structure of PIDF Diff Documents

   The MIME type 'application/pidf-diff+xml' defines the new content
   type for partial PIDF documents.

The MIME type 'application/pidf-diff+xml' defines the new content type for partial PIDF documents.

   The XML Schema imports the PIDF [RFC3863] schema so that the full
   PIDF document content with the addition of a 'version' attribute can
   be transported.  The root element of the document is then
   <pidf-full>, and the 'version' attribute information can be included
   within it.  Otherwise, the content of <pidf-full> element is exactly
   the same as what would have been if 'application/pidf+xml' content
   type had been used.  Although the XML Schema also allows using
   <presence> as the document root element, it is disallowed from
   applications utilizing this document format.

The XML Schema imports the PIDF [RFC3863] schema so that the full PIDF document content with the addition of a 'version' attribute can be transported. The root element of the document is then <pidf-full>, and the 'version' attribute information can be included within it. Otherwise, the content of <pidf-full> element is exactly the same as what would have been if 'application/pidf+xml' content type had been used. Although the XML Schema also allows using <presence> as the document root element, it is disallowed from applications utilizing this document format.

   When only the changes of the presence document are transported, the
   model described in XML patch operations [RFC5261] is used.  The root
   element of the document is then <pidf-diff>.  The patch operation
   elements: <add>, <remove>, and <replace> allow changing the partial
   content of the cached local copy of the full presence document.  The
   <add> element is used to add new content, the <replace> element
   updates, and the <remove> element removes existing content.

When only the changes of the presence document are transported, the model described in XML patch operations [RFC5261] is used. The root element of the document is then <pidf-diff>. The patch operation elements: <add>, <remove>, and <replace> allow changing the partial content of the cached local copy of the full presence document. The <add> element is used to add new content, the <replace> element updates, and the <remove> element removes existing content.

   The optional 'version' attribute within the two possible document
   root elements contains a sequence number which is incremented by one
   between subsequent document updates, i.e., a more recent document
   update has a higher 'version' value than the previous one.  This
   number can be used to ensure consistent updates as the recipient of

The optional 'version' attribute within the two possible document root elements contains a sequence number which is incremented by one between subsequent document updates, i.e., a more recent document update has a higher 'version' value than the previous one. This number can be used to ensure consistent updates as the recipient of

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   the document can use the 'version' number to properly order received
   documents and to ensure that updates have not been lost.  The usage
   of this attribute thus allows "state delta" processing described in
   [RFC3265].  Partial notification [RFC5263] uses a similar model.
   This number increments independently regardless of whether the
   <pidf-full> or the <pidf-diff> content is transported.  In other
   words, a single version counter is maintained across <pidf-full> and
   <pidf-diff> documents.

the document can use the 'version' number to properly order received documents and to ensure that updates have not been lost. The usage of this attribute thus allows "state delta" processing described in [RFC3265]. Partial notification [RFC5263] uses a similar model. This number increments independently regardless of whether the <pidf-full> or the <pidf-diff> content is transported. In other words, a single version counter is maintained across <pidf-full> and <pidf-diff> documents.

   Implementations using this document format MUST follow guidelines
   specified in the PIDF [RFC3863] and PIDF extension formats, for
   example, DataModel [RFC4479], Rich Presence Information Data (RPID)
   [RFC4480], and Contact Information in PIDF (CIPID) [RFC4482] MUST
   support the usage of the XML schema data type ID
   [W3C.REC-xmlschema-2-20041028] of these listed RFCs.  Specifically,
   the XML document MUST be well formed and SHOULD be valid.  This
   specification makes use of XML namespaces for identifying presence
   documents and document fragments.  The namespace URI for elements
   defined by this specification is a URN [RFC2141], using the namespace
   identifier 'ietf' specified in RFC 2648 [RFC2648] and extended by RFC
   3688 [RFC3688].  This URN is:

Implementations using this document format MUST follow guidelines specified in the PIDF [RFC3863] and PIDF extension formats, for example, DataModel [RFC4479], Rich Presence Information Data (RPID) [RFC4480], and Contact Information in PIDF (CIPID) [RFC4482] MUST support the usage of the XML schema data type ID [W3C.REC-xmlschema-2-20041028] of these listed RFCs. Specifically, the XML document MUST be well formed and SHOULD be valid. This specification makes use of XML namespaces for identifying presence documents and document fragments. The namespace URI for elements defined by this specification is a URN [RFC2141], using the namespace identifier 'ietf' specified in RFC 2648 [RFC2648] and extended by RFC 3688 [RFC3688]. This URN is:

   urn:ietf:params:xml:ns:pidf-diff

urn:ietf:params:xml:ns:pidf-diff

3.1.  'version' Attribute

3.1. 'version' Attribute

   Every presence document compliant with this specification MAY contain
   a 'version' attribute within the <pidf-diff> and <pidf-full> element.

Every presence document compliant with this specification MAY contain a 'version' attribute within the <pidf-diff> and <pidf-full> element.

3.2.  'entity' Attribute

3.2. 'entity' Attribute

   Every presence document compliant with this specification MAY contain
   an 'entity' attribute within the <pidf-diff> element.  Its content, a
   presentity URI, MUST then be the same as the 'entity' attribute value
   of the <presence> element described in [RFC3863].  The usage of this
   presentity URI is described in more detail in Section 3.1 of
   [RFC4479].

Every presence document compliant with this specification MAY contain an 'entity' attribute within the <pidf-diff> element. Its content, a presentity URI, MUST then be the same as the 'entity' attribute value of the <presence> element described in [RFC3863]. The usage of this presentity URI is described in more detail in Section 3.1 of [RFC4479].

4.  Usage of 'application/pidf-diff+xml'

4. Usage of 'application/pidf-diff+xml'

   The partial presence document SHOULD only contain those elements or
   attributes that have changed.  However, when there are a lot of
   changes, the full presence document content can then be transported
   instead.

The partial presence document SHOULD only contain those elements or attributes that have changed. However, when there are a lot of changes, the full presence document content can then be transported instead.

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5.  IANA Considerations

5. IANA Considerations

   IANA has performed the following actions:

IANA has performed the following actions:

   o  registered a new XML namespace URN per [RFC3688].

o registered a new XML namespace URN per [RFC3688].

   o  registered a new MIME type 'application/pidf-diff+xml' according
      to the procedures of RFC 4288 [RFC4288] and guidelines in RFC 3023
      [RFC3023].

o registered a new MIME type 'application/pidf-diff+xml' according to the procedures of RFC 4288 [RFC4288] and guidelines in RFC 3023 [RFC3023].

   o  registered a new XML Schema according to the procedures of RFC
      3688 [RFC3688].

o registered a new XML Schema according to the procedures of RFC 3688 [RFC3688].

5.1.  URN Sub-Namespace Registration for
      'urn:ietf:params:xml:ns:pidf-diff'

5.1. URN Sub-Namespace Registration for 'urn:ietf:params:xml:ns:pidf-diff'

   This specification registers a new XML namespace, as per the
   guidelines in RFC 3688 [RFC3688].

This specification registers a new XML namespace, as per the guidelines in RFC 3688 [RFC3688].

      URI:
      urn:ietf:params:xml:ns:pidf-diff

URI: urn:ietf:params:xml:ns:pidf-diff

      Description:
      This is the XML namespace for XML elements defined by RFC 5262 to
      describe the 'application/pidf-diff+xml' content type for partial
      PIDF.

Description: This is the XML namespace for XML elements defined by RFC 5262 to describe the 'application/pidf-diff+xml' content type for partial PIDF.

      Registrant Contact:
      IETF, SIMPLE working group, (simple@ietf.org)
      Jari Urpalainen, (jari.urpalainen@nokia.com)

Registrant Contact: IETF, SIMPLE working group, (simple@ietf.org) Jari Urpalainen, (jari.urpalainen@nokia.com)

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   XML:

XML:

   BEGIN
   <?xml version="1.0"?>
   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.0//EN"
     "http://www.w3.org/TR/xhtml-basic/xhtml-basic10.dtd">
   <html xmlns="http://www.w3.org/1999/xhtml">
     <head>
       <meta http-equiv="content-type"
             content="text/html;charset=iso-8859-1"/>
       <title>PIDF extension for partial PIDF</title>
     </head>
     <body>
       <h1>Namespace for PIDF extension for partial
           notifications</h1>
       <h2>urn:ietf:params:xml:ns:pidf-diff</h2>
       <p>See <a href="http://www.rfc-editor.org/rfc/rfc5262.txt">
        RFC5262</a>.</p>
     </body>
   </html>
   END

BEGIN <?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.0//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic10.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html;charset=iso-8859-1"/> <title>PIDF extension for partial PIDF</title> </head> <body> <h1>Namespace for PIDF extension for partial notifications</h1> <h2>urn:ietf:params:xml:ns:pidf-diff</h2> <p>See <a href="http://www.rfc-editor.org/rfc/rfc5262.txt"> RFC5262</a>.</p> </body> </html> END

5.2.  application/pidf-diff+xml MIME Type

5.2. application/pidf-diff+xml MIME Type

   MIME media type name: application

MIME media type name: application

   MIME subtype name: pidf-diff+xml

MIME subtype name: pidf-diff+xml

   Mandatory parameters: none

Mandatory parameters: none

   Optional parameters:
   Same as charset parameter of application/xml as specified in RFC 3023
   [RFC3023].  Default value is UTF-8.

Optional parameters: Same as charset parameter of application/xml as specified in RFC 3023 [RFC3023]. Default value is UTF-8.

   Encoding considerations:
   Same as encoding considerations of application/xml as specified in
   RFC 3023 [RFC3023].

Encoding considerations: Same as encoding considerations of application/xml as specified in RFC 3023 [RFC3023].

   Security considerations:
   See Section 10 of RFC 3023 [RFC3023].  This content type is designed
   to carry presence data, which may be considered private information.
   Appropriate precautions should be adopted to limit disclosure of this
   information.

Security considerations: See Section 10 of RFC 3023 [RFC3023]. This content type is designed to carry presence data, which may be considered private information. Appropriate precautions should be adopted to limit disclosure of this information.

   Interoperability considerations: none

Interoperability considerations: none

   Published specification: RFC 5262

Published specification: RFC 5262

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   Applications that use this media type: SIP-based presence systems

Applications that use this media type: SIP-based presence systems

   Additional information:

Additional information:

      Magic Number: None

Magic Number: None

      File Extension: .xml

File Extension: .xml

      Macintosh file type code: "TEXT"

Macintosh file type code: "TEXT"

   Personal and email address for further information: Jari Urpalainen,
   jari.urpalainen@nokia.com

Personal and email address for further information: Jari Urpalainen, jari.urpalainen@nokia.com

   Intended usage: LIMITED USE

Intended usage: LIMITED USE

   Restrictions on usage: Presence [RFC3863] based systems.

Restrictions on usage: Presence [RFC3863] based systems.

   Author:
   This specification is a work item of the IETF SIMPLE working group,
   with mailing list address <simple@ietf.org>.

Author: This specification is a work item of the IETF SIMPLE working group, with mailing list address <simple@ietf.org>.

   Author/Change controller: the IETF.

Author/Change controller: the IETF.

5.3.  XML Schema Registration

5.3. XML Schema Registration

   This section calls for IANA to register a new XML Schema, the sole
   content of which can be found in Section 7.

This section calls for IANA to register a new XML Schema, the sole content of which can be found in Section 7.

      URI:
      urn:ietf:params:xml:schema:pidf-diff

URI: urn:ietf:params:xml:schema:pidf-diff

      Registrant Contact:
      IETF, SIMPLE working group, <simple@ietf.org>
      Jari Urpalainen, <jari.urpalainen@nokia.com>

Registrant Contact: IETF, SIMPLE working group, <simple@ietf.org> Jari Urpalainen, <jari.urpalainen@nokia.com>

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6.  Examples

6. Examples

   An 'application/pidf-diff+xml' document that contains the full state
   presence information:

An 'application/pidf-diff+xml' document that contains the full state presence information:

   <?xml version="1.0" encoding="UTF-8"?>
   <p:pidf-full xmlns="urn:ietf:params:xml:ns:pidf"
          xmlns:p="urn:ietf:params:xml:ns:pidf-diff"
          xmlns:r="urn:ietf:params:xml:ns:pidf:rpid"
          xmlns:ci="urn:ietf:params:xml:ns:pidf:cipid"
          xmlns:c="urn:ietf:params:xml:ns:pidf:caps"
          xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model"
          entity="pres:someone@example.com"
          version="567">

<?xml version="1.0" encoding="UTF-8"?> <p:pidf-full xmlns="urn:ietf:params:xml:ns:pidf" xmlns:p="urn:ietf:params:xml:ns:pidf-diff" xmlns:r="urn:ietf:params:xml:ns:pidf:rpid" xmlns:ci="urn:ietf:params:xml:ns:pidf:cipid" xmlns:c="urn:ietf:params:xml:ns:pidf:caps" xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model" entity="pres:someone@example.com" version="567">

    <tuple id="sg89ae">
     <status>
      <basic>open</basic>
     </status>
     <c:servcaps>
      <c:audio>true</c:audio>
      <c:message>true</c:message>
      <c:video>false</c:video>
     </c:servcaps>
     <contact priority="0.8">tel:09012345678</contact>
    </tuple>

<tuple id="sg89ae"> <status> <basic>open</basic> </status> <c:servcaps> <c:audio>true</c:audio> <c:message>true</c:message> <c:video>false</c:video> </c:servcaps> <contact priority="0.8">tel:09012345678</contact> </tuple>

    <tuple id="cg231jcr">
     <status>
      <basic>open</basic>
     </status>
     <contact priority="1.0">im:pep@example.com</contact>
    </tuple>

<tuple id="cg231jcr"> <status> <basic>open</basic> </status> <contact priority="1.0">im:pep@example.com</contact> </tuple>

    <tuple id="r1230d">
     <status>
      <basic>closed</basic>
     </status>
     <ci:homepage>http://example.com/~pep/</ci:homepage>
     <ci:icon>http://example.com/~pep/icon.gif</ci:icon>
     <ci:card>http://example.com/~pep/card.vcd</ci:card>
     <contact priority="0.9">sip:pep@example.com</contact>
    </tuple>

<tuple id="r1230d"> <status> <basic>closed</basic> </status> <ci:homepage>http://example.com/~pep/</ci:homepage> <ci:icon>http://example.com/~pep/icon.gif</ci:icon> <ci:card>http://example.com/~pep/card.vcd</ci:card> <contact priority="0.9">sip:pep@example.com</contact> </tuple>

    <note xml:lang="en">Full state presence document</note>

<note xml:lang="en">Full state presence document</note>

    <dm:person id="p123">
     <r:activities>

<dm:person id="p123"> <r:activities>

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      <r:on-the-phone/>
      <r:busy/>
     </r:activities>
    </dm:person>
    <dm:device id="u600b40c7">
     <c:devcaps>
      <c:mobility>
       <c:supported>
        <c:mobile/>
       </c:supported>
      </c:mobility>
     </c:devcaps>
     <dm:deviceID>urn:esn:600b40c7</dm:deviceID>
    </dm:device>

<r:on-the-phone/> <r:busy/> </r:activities> </dm:person> <dm:device id="u600b40c7"> <c:devcaps> <c:mobility> <c:supported> <c:mobile/> </c:supported> </c:mobility> </c:devcaps> <dm:deviceID>urn:esn:600b40c7</dm:deviceID> </dm:device>

   </p:pidf-full>

</p:pidf-full>

   An example partial update document with the <pidf-diff> root element:

An example partial update document with the <pidf-diff> root element:

   <?xml version="1.0" encoding="UTF-8"?>
   <p:pidf-diff
        xmlns="urn:ietf:params:xml:ns:pidf"
        xmlns:p="urn:ietf:params:xml:ns:pidf-diff"
        xmlns:r="urn:ietf:params:xml:ns:pidf:rpid"
        xmlns:d="urn:ietf:params:xml:ns:pidf:data-model"
        entity="pres:someone@example.com"
        version="568">

<?xml version="1.0" encoding="UTF-8"?> <p:pidf-diff xmlns="urn:ietf:params:xml:ns:pidf" xmlns:p="urn:ietf:params:xml:ns:pidf-diff" xmlns:r="urn:ietf:params:xml:ns:pidf:rpid" xmlns:d="urn:ietf:params:xml:ns:pidf:data-model" entity="pres:someone@example.com" version="568">

   <p:add sel="presence/note" pos="before">
    <tuple id="ert4773">
     <status>
      <basic>open</basic>
     </status>
     <contact priority="0.4">mailto:pep@example.com</contact>
     <note xml:lang="en">This is a new tuple inserted
          between the last tuple and person element</note>
    </tuple>
   </p:add>

<p:add sel="presence/note" pos="before"> <tuple id="ert4773"> <status> <basic>open</basic> </status> <contact priority="0.4">mailto:pep@example.com</contact> <note xml:lang="en">This is a new tuple inserted between the last tuple and person element</note> </tuple> </p:add>

   <p:replace sel="*/tuple[@id='r1230d']/status/basic/text()"
      >open</p:replace>

<p:replace sel="*/tuple[@id='r1230d']/status/basic/text()" >open</p:replace>

   <p:remove sel="*/d:person/r:activities/r:busy" ws="after"/>

<p:remove sel="*/d:person/r:activities/r:busy" ws="after"/>

   <p:replace sel="*/tuple[@id='cg231jcr']/contact/@priority"
      >0.7</p:replace>

<p:replace sel="*/tuple[@id='cg231jcr']/contact/@priority" >0.7</p:replace>

   </p:pidf-diff>

</p:pidf-diff>

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   An updated local composition presence document after applying the
   patches:

An updated local composition presence document after applying the patches:

   <?xml version="1.0" encoding="UTF-8"?>
   <p:pidf-full xmlns="urn:ietf:params:xml:ns:pidf"
          xmlns:p="urn:ietf:params:xml:ns:pidf-diff"
          xmlns:r="urn:ietf:params:xml:ns:pidf:rpid"
          xmlns:ci="urn:ietf:params:xml:ns:pidf:cipid"
          xmlns:c="urn:ietf:params:xml:ns:pidf:caps"
          xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model"
          entity="pres:someone@example.com"
          version="568">

<?xml version="1.0" encoding="UTF-8"?> <p:pidf-full xmlns="urn:ietf:params:xml:ns:pidf" xmlns:p="urn:ietf:params:xml:ns:pidf-diff" xmlns:r="urn:ietf:params:xml:ns:pidf:rpid" xmlns:ci="urn:ietf:params:xml:ns:pidf:cipid" xmlns:c="urn:ietf:params:xml:ns:pidf:caps" xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model" entity="pres:someone@example.com" version="568">

    <tuple id="sg89ae">
     <status>
      <basic>open</basic>
     </status>
     <c:servcaps>
      <c:audio>true</c:audio>
      <c:message>true</c:message>
      <c:video>false</c:video>
     </c:servcaps>
     <contact priority="0.8">tel:09012345678</contact>
    </tuple>

<tuple id="sg89ae"> <status> <basic>open</basic> </status> <c:servcaps> <c:audio>true</c:audio> <c:message>true</c:message> <c:video>false</c:video> </c:servcaps> <contact priority="0.8">tel:09012345678</contact> </tuple>

    <tuple id="cg231jcr">
     <status>
      <basic>open</basic>
     </status>
     <contact priority="0.7">im:pep@example.com</contact>
    </tuple>

<tuple id="cg231jcr"> <status> <basic>open</basic> </status> <contact priority="0.7">im:pep@example.com</contact> </tuple>

    <tuple id="r1230d">
     <status>
      <basic>open</basic>
     </status>
     <ci:homepage>http://example.com/~pep/</ci:homepage>
     <ci:icon>http://example.com/~pep/icon.gif</ci:icon>
     <ci:card>http://example.com/~pep/card.vcd</ci:card>
     <contact priority="0.9">sip:pep@example.com</contact>
    </tuple>

<tuple id="r1230d"> <status> <basic>open</basic> </status> <ci:homepage>http://example.com/~pep/</ci:homepage> <ci:icon>http://example.com/~pep/icon.gif</ci:icon> <ci:card>http://example.com/~pep/card.vcd</ci:card> <contact priority="0.9">sip:pep@example.com</contact> </tuple>

    <tuple id="ert4773">
     <status>
      <basic>open</basic>
     </status>
     <contact priority="0.4">mailto:pep@example.com</contact>

<tuple id="ert4773"> <status> <basic>open</basic> </status> <contact priority="0.4">mailto:pep@example.com</contact>

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Lonnfors, et al. Standards Track [Page 10]  RFC 5262 Partial PIDF September 2008

     <note xml:lang="en">This is a new tuple inserted
         between the last tuple and note element</note>
    </tuple>

<note xml:lang="en">This is a new tuple inserted between the last tuple and note element</note> </tuple>

    <note xml:lang="en">Full state presence document</note>

<note xml:lang="en">Full state presence document</note>

    <dm:person id="p123">
     <r:activities>
      <r:on-the-phone/>
     </r:activities>
    </dm:person>

<dm:person id="p123"> <r:activities> <r:on-the-phone/> </r:activities> </dm:person>

    <dm:device id="u600b40c7">
     <c:devcaps>
      <c:mobility>
       <c:supported>
        <c:mobile/>
       </c:supported>
      </c:mobility>
     </c:devcaps>
     <dm:deviceID>urn:esn:600b40c7</dm:deviceID>
    </dm:device>

<dm:device id="u600b40c7"> <c:devcaps> <c:mobility> <c:supported> <c:mobile/> </c:supported> </c:mobility> </c:devcaps> <dm:deviceID>urn:esn:600b40c7</dm:deviceID> </dm:device>

   </p:pidf-full>

</p:pidf-full>

7.  XML Schema

7. XML Schema

   The XML schema for the 'application/pidf-diff+xml' data format.  The
   included schema "urn:ietf:params:xml:schema:xml-patch-ops" is defined
   in [RFC5261], and the PIDF Schema "pidf.xsd" is imported from
   [RFC3863].

The XML schema for the 'application/pidf-diff+xml' data format. The included schema "urn:ietf:params:xml:schema:xml-patch-ops" is defined in [RFC5261], and the PIDF Schema "pidf.xsd" is imported from [RFC3863].

   <?xml version="1.0" encoding="UTF-8"?>
   <xsd:schema
       targetNamespace="urn:ietf:params:xml:ns:pidf-diff"
       xmlns:tns="urn:ietf:params:xml:ns:pidf-diff"
       xmlns:pidf="urn:ietf:params:xml:ns:pidf"
       xmlns:xsd="http://www.w3.org/2001/XMLSchema"
       elementFormDefault="qualified">

<?xml version="1.0" encoding="UTF-8"?> <xsd:schema targetNamespace="urn:ietf:params:xml:ns:pidf-diff" xmlns:tns="urn:ietf:params:xml:ns:pidf-diff" xmlns:pidf="urn:ietf:params:xml:ns:pidf" xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

    <!-- include patch-ops type definitions -->
    <xsd:include
         schemaLocation="urn:ietf:params:xml:schema:patch-ops"/>

<!-- include patch-ops type definitions --> <xsd:include schemaLocation="urn:ietf:params:xml:schema:patch-ops"/>

    <!-- import PIDF definitions -->
    <xsd:import namespace="urn:ietf:params:xml:ns:pidf"
                schemaLocation="pidf.xsd"/>

<!-- import PIDF definitions --> <xsd:import namespace="urn:ietf:params:xml:ns:pidf" schemaLocation="pidf.xsd"/>

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    <!-- partial updates -->
    <xsd:element name="pidf-diff">
     <xsd:complexType>
      <xsd:sequence minOccurs="0" maxOccurs="unbounded">
       <xsd:choice>
        <xsd:element name="add" type="tns:add"/>
        <xsd:element name="replace" type="tns:replace"/>
        <xsd:element name="remove" type="tns:remove"/>
       </xsd:choice>
      </xsd:sequence>
      <xsd:attribute name="version" type="xsd:unsignedInt"/>
      <xsd:attribute name="entity" type="xsd:anyURI"/>
     </xsd:complexType>
    </xsd:element>

<!-- partial updates --> <xsd:element name="pidf-diff"> <xsd:complexType> <xsd:sequence minOccurs="0" maxOccurs="unbounded"> <xsd:choice> <xsd:element name="add" type="tns:add"/> <xsd:element name="replace" type="tns:replace"/> <xsd:element name="remove" type="tns:remove"/> </xsd:choice> </xsd:sequence> <xsd:attribute name="version" type="xsd:unsignedInt"/> <xsd:attribute name="entity" type="xsd:anyURI"/> </xsd:complexType> </xsd:element>

    <!-- full PIDF in addition to optional version -->
    <xsd:element name="pidf-full">
     <xsd:complexType>
      <xsd:complexContent>
       <xsd:extension base="pidf:presence">
        <xsd:attribute name="version" type="xsd:unsignedInt"/>
       </xsd:extension>
      </xsd:complexContent>
     </xsd:complexType>
    </xsd:element>

<!-- full PIDF in addition to optional version --> <xsd:element name="pidf-full"> <xsd:complexType> <xsd:complexContent> <xsd:extension base="pidf:presence"> <xsd:attribute name="version" type="xsd:unsignedInt"/> </xsd:extension> </xsd:complexContent> </xsd:complexType> </xsd:element>

   </xsd:schema>

</xsd:schema>

8.  Interoperability Considerations

8. Interoperability Considerations

   Systems compliant with Common Profile for Presence (CPP) [RFC3859]
   will not be by default able to use this specification.  However, this
   will not cause any interoperability problems because all endpoints
   and gateways must support the default MIME type
   (application/pidf+xml) regardless of if they support this
   specification.  Thus, if a gateway or another end point does not
   understand this specification it will not be used.  In SIMPLE-based
   systems, use of this MIME type is negotiated using SIP content type
   negotiation mechanism as specified in partial notification [RFC5263].

Systems compliant with Common Profile for Presence (CPP) [RFC3859] will not be by default able to use this specification. However, this will not cause any interoperability problems because all endpoints and gateways must support the default MIME type (application/pidf+xml) regardless of if they support this specification. Thus, if a gateway or another end point does not understand this specification it will not be used. In SIMPLE-based systems, use of this MIME type is negotiated using SIP content type negotiation mechanism as specified in partial notification [RFC5263].

   Other CPP-compliant (other than SIP-based) systems can also support
   this specification if they have a mechanism to indicate support for
   it.  If they do, it is possible to build a gateway that will preserve
   end-to-end integrity with usage of partial PIDF.

Other CPP-compliant (other than SIP-based) systems can also support this specification if they have a mechanism to indicate support for it. If they do, it is possible to build a gateway that will preserve end-to-end integrity with usage of partial PIDF.

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9.  Security Considerations

9. Security Considerations

   All security considerations identified for PIDF [RFC3863] apply
   unchanged for this document as presence information may contain
   highly sensitive information.  Furthermore, the protocol SHOULD
   provide authorization policies what presence information can be given
   to which watchers, and when, see [RFC5025].

All security considerations identified for PIDF [RFC3863] apply unchanged for this document as presence information may contain highly sensitive information. Furthermore, the protocol SHOULD provide authorization policies what presence information can be given to which watchers, and when, see [RFC5025].

10.  Internationalization Considerations

10. Internationalization Considerations

   The PIDF [RFC3863] format is represented in XML that performs all
   character processing in terms of the Universal Character Set (UCS).
   Conformant XML processors MUST support both UTF-8 and UTF-16
   encodings of the UCS.  UTF-8 is the RECOMMENDED encoding of this
   partial presence format.

The PIDF [RFC3863] format is represented in XML that performs all character processing in terms of the Universal Character Set (UCS). Conformant XML processors MUST support both UTF-8 and UTF-16 encodings of the UCS. UTF-8 is the RECOMMENDED encoding of this partial presence format.

   If the character set of the initial <pidf-full> document has been
   accepted by a receiving application, it MUST continue to accept the
   same character set with the subsequent <pidf-diff> documents.
   However, it MUST NOT need to accept a possible character set change.

If the character set of the initial <pidf-full> document has been accepted by a receiving application, it MUST continue to accept the same character set with the subsequent <pidf-diff> documents. However, it MUST NOT need to accept a possible character set change.

11.  Error Handling

11. Error Handling

   Error conditions MAY be indicated by errors defined in [RFC5261].
   This document doesn't define any additional error elements.  If the
   'version' or 'entity' attributes have incorrect content, it MAY be
   indicated by the <invalid-attribute-value> error element.

エラー条件は[RFC5261]で定義された誤りで示されるかもしれません。 このドキュメントはどんな追加誤り要素も定義しません。 不正確な内容が'バージョン'か'実体'属性にあるなら、それは<無効の属性値>誤り要素によって示されるかもしれません。

12.  Acknowledgments

12. 承認

   The authors would like to thank Jose Costa-Requena, Jyrki Aarnos,
   Jonathan Rosenberg, Dean Willis, Miguel Garcia, Krisztian Kiss, Ben
   Cambell, Robert Sparks, Anders Kristenssen, Aki Niemi, Jon Peterson,
   Gonzalo Camarillo, Lars Eggert, Lakshminath Dondeti, and Chris Newman
   for their valuable comments and contributions.

作者は彼らの貴重なコメントと貢献についてホセ・コスタ-レケナ、イルキAarnos、ジョナサン・ローゼンバーグ、ディーン・ウィリス、ミゲル・ガルシア、Krisztian Kiss、ベンCambell、ロバート・スパークス、アンダースKristenssen、アキNiemi、ジョン・ピーターソン、ゴンサロ・キャマリロ、ラース・エッゲルト、Lakshminath Dondeti、およびクリス・ニューマンに感謝したがっています。

13.  References

13. 参照

13.1.  Normative references

13.1. 引用規格

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

[RFC2119] ブラドナー、S.、「Indicate Requirement LevelsへのRFCsにおける使用のためのキーワード」、BCP14、RFC2119、1997年3月。

   [RFC3863]  Sugano, H., Fujimoto, S., Klyne, G., Bateman, A., Carr,
              W., and J. Peterson, "Presence Information Data Format
              (PIDF)", RFC 3863, August 2004.

[RFC3863] 菅野、H.、藤本、S.、Klyne、G.、Bateman、A.、カー、W.、およびJ.ピーターソン、「存在インフォメーション・データは(PIDF)をフォーマットします」、RFC3863、2004年8月。

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   [RFC2141]  Moats, R., "URN Syntax", RFC 2141, May 1997.

[RFC2141]モウツ(R.、「つぼの構文」、RFC2141)は1997がそうするかもしれません。

   [RFC2648]  Moats, R., "A URN Namespace for IETF Documents", RFC 2648,
              August 1999.

[RFC2648] モウツ、R.、「IETFドキュメントのためのつぼの名前空間」、RFC2648、1999年8月。

   [RFC3688]  Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
              January 2004.

[RFC3688] 食事、M.、「IETF XML登録」、BCP81、RFC3688、2004年1月。

   [RFC3023]  Murata, M., St. Laurent, S., and D. Kohn, "XML Media
              Types", RFC 3023, January 2001.

[RFC3023] ムラタとM.と聖ローラン、S.とD.コーン、「XMLメディアタイプ」、RFC3023、2001年1月。

   [RFC4288]  Freed, N. and J. Klensin, "Media Type Specifications and
              Registration Procedures", BCP 13, RFC 4288, December 2005.

解放された[RFC4288]とN.とJ.Klensin、「メディアは仕様と登録手順をタイプする」BCP13、RFC4288、2005年12月。

   [RFC4479]  Rosenberg, J., "A Data Model for Presence", RFC 4479, July
              2006.

[RFC4479] ローゼンバーグ、J.、「存在のためのデータモデル」、RFC4479、2006年7月。

   [RFC4480]  Schulzrinne, H., Gurbani, V., Kyzivat, P., and J.
              Rosenberg, "RPID: Rich Presence Extensions to the Presence
              Information Data Format (PIDF)", RFC 4480, July 2006.

[RFC4480] Schulzrinne、H.、Gurbani、V.、Kyzivat、P.、およびJ.ローゼンバーグ、「RPID:」 「存在情報データの形式(PIDF)への豊かな存在拡大」、RFC4480、2006年7月。

   [RFC4482]  Schulzrinne, H., "CIPID: Contact Information for the
              Presence Information Data Format", RFC 4482, July 2006.

[RFC4482]Schulzrinne、H.、「CIPID:」 「存在情報データの形式のための問い合わせ先」、RFC4482、2006年7月。

   [RFC5261]  Urpalainen, J., "An Extensible Markup Language (XML) Patch
              Operations Framework Utilizing XML Path Language (XPath)
              Selectors", RFC 5261, September 2008.

[RFC5261] Urpalainen、J.、「XML経路言語(XPath)セレクタを利用する拡張マークアップ言語(XML)パッチ操作枠組み」、RFC5261(2008年9月)。

   [W3C.REC-xmlschema-2-20041028]
              Malhotra, A. and P. Biron, "XML Schema Part 2: Datatypes
              Second Edition", World Wide Web Consortium Recommendation
              REC-xmlschema-2-20041028, October 2004,
              <http://www.w3.org/TR/2004/REC-xmlschema-2-20041028>.

[W3C. REC-xmlschema-2-20041028] Malhotra、A.、およびP.ビロン、「XML図式第2部:」 「データ型式第2版」、ワールドワイドウェブコンソーシアム推薦REC-xmlschema-2-20041028、<http://www.w3.org/TR/2004/REC-xmlschema-2-20041028 2004年10月の>。

13.2.  Informative references

13.2. 有益な参照

   [RFC2778]  Day, M., Rosenberg, J., and H. Sugano, "A Model for
              Presence and Instant Messaging", RFC 2778, February 2000.

2000年2月の[RFC2778]日、M.とローゼンバーグ、J.とH.菅野、「存在とインスタントメッセージングのためのモデル」RFC2778。

   [RFC3265]  Roach, A., "Session Initiation Protocol (SIP)-Specific
              Event Notification", RFC 3265, June 2002.

[RFC3265] ローチ、A.、「セッション開始プロトコル(一口)特定のイベント通知」、RFC3265、2002年6月。

   [RFC3859]  Peterson, J., "Common Profile for Presence (CPP)", RFC
              3859, August 2004.

[RFC3859] ピーターソン、J.、「存在(CPP)のための一般的なプロフィール」、RFC3859、2004年8月。

   [RFC5025]  Rosenberg, J., "Presence Authorization Rules", RFC 5025,
              December 2007.

[RFC5025] ローゼンバーグ、J.、「存在認可規則」、RFC5025、2007年12月。

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   [RFC5263]  Lonnfors, M., "Session Initiation Protocol (SIP) Extension
              for Partial Notification of Presence Information", RFC
              5263, September 2008.

[RFC5263]Lonnfors、M.、「存在情報の部分的な通知のためのセッション開始プロトコル(一口)拡大」、RFC5263、2008年9月。

Authors' Addresses

作者のアドレス

   Mikko Lonnfors
   Nokia
   Itamerenkatu 11-13 00180
   Helsinki
   Finland

ミッコLonnforsノキアItamerenkatu11-13 00180ヘルシンキフィンランド

   Phone: +358 71 8008000
   EMail: mikko.lonnfors@nokia.com

以下に電話をしてください。 +358 71 8008000はメールされます: mikko.lonnfors@nokia.com

   Eva Leppanen
   Individual
   Lempaala
   Finland

エバLeppanen個人Lempaalaフィンランド

   EMail: eva.leppanen@saunalahti.fi

メール: eva.leppanen@saunalahti.fi

   Hisham Khartabil
   Ericsson Australia
   P.O. Box 256c
   Melbourne, VIC 3001
   Australia

Hisham Khartabilエリクソンオーストラリア私書箱256c VIC3001メルボルン(オーストラリア)

   EMail: hisham.khartabil@gmail.com

メール: hisham.khartabil@gmail.com

   Jari Urpalainen
   Nokia
   Itamerenkatu 11-13 00180
   Helsinki
   Finland

ヤリUrpalainenノキアItamerenkatu11-13 00180ヘルシンキフィンランド

   Phone: +358 7180 37686
   EMail: jari.urpalainen@nokia.com

以下に電話をしてください。 +358 7180 37686はメールされます: jari.urpalainen@nokia.com

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Full Copyright Statement

完全な著作権宣言文

   Copyright (C) The IETF Trust (2008).

IETFが信じる著作権(C)(2008)。

   This document is subject to the rights, licenses and restrictions
   contained in BCP 78, and except as set forth therein, the authors
   retain all their rights.

このドキュメントはBCP78に含まれた権利、ライセンス、および制限を受けることがあります、そして、そこに詳しく説明されるのを除いて、作者は彼らのすべての権利を保有します。

   This document and the information contained herein are provided on an
   "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
   OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND
   THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF
   THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
   WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

このドキュメントとここに含まれた情報はその人が代理をするか、または(もしあれば)後援される組織、インターネットの振興発展を目的とする組織、「そのままで」という基礎と貢献者の上で提供していて、IETFはそして、インターネット・エンジニアリング・タスク・フォースがすべての保証を放棄すると信じます、急行である、または暗示していて、他を含んでいて、情報の使用がここに侵害しないどんな保証も少しもまっすぐになるということであるかいずれが市場性か特定目的への適合性の黙示的な保証です。

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IETFはどんなIntellectual Property Rightsの正当性か範囲、実現に関係すると主張されるかもしれない他の権利、本書では説明された技術の使用またはそのような権利の下におけるどんなライセンスも利用可能であるかもしれない、または利用可能でないかもしれない範囲に関しても立場を全く取りません。 または、それはそれを表しません。どんなそのような権利も特定するためのどんな独立している努力もしました。 BCP78とBCP79でRFCドキュメントの権利に関する手順に関する情報を見つけることができます。

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IPR公開のコピーが利用可能に作られるべきライセンスの保証、または一般的な免許を取得するのが作られた試みの結果をIETF事務局といずれにもしたか、または http://www.ietf.org/ipr のIETFのオンラインIPR倉庫からこの仕様のimplementersかユーザによるそのような所有権の使用のために許可を得ることができます。

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights that may cover technology that may be required to implement
   this standard.  Please address the information to the IETF at
   ietf-ipr@ietf.org.

IETFはこの規格を実行するのに必要であるかもしれない技術をカバーするかもしれないどんな著作権もその注目していただくどんな利害関係者、特許、特許出願、または他の所有権も招待します。 ietf-ipr@ietf.org のIETFに情報を記述してください。

Lonnfors, et al.            Standards Track                    [Page 16]

Lonnfors、他 標準化過程[16ページ]