xeps/xep-0054.xml

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<!DOCTYPE xep SYSTEM 'xep.dtd' [
  <!ENTITY % ents SYSTEM 'xep.ent'>
%ents;
]>
<?xml-stylesheet type='text/xsl' href='xep.xsl'?>
<xep>
<header>
  <title>vcard-temp</title>
  <abstract>This specification provides canonical documentation of the vCard-XML format currently in use within the Jabber community.</abstract>
  &LEGALNOTICE;
  <number>0054</number>
  <status>Active</status>
  <type>Historical</type>
  <sig>Standards</sig>
  <dependencies>
    <spec>XMPP Core</spec>
  </dependencies>
  <supersedes/>
  <supersededby/>
  <shortname>vcard-temp</shortname>
  &stpeter;
  <revision>
    <version>1.1</version>
    <date>2003-03-26</date>
    <initials>psa</initials>
    <remark>Clarified certain historical inaccuracies and added links to archived versions of Frank Dawson's Internet-Drafts.</remark>
  </revision>
  <revision>
    <version>1.0</version>
    <date>2003-01-09</date>
    <initials>psa</initials>
    <remark>Updated status to Active per vote of the Jabber Council.</remark>
  </revision>
  <revision>
    <version>0.2</version>
    <date>2002-11-06</date>
    <initials>psa</initials>
    <remark>Many small fixes; added implementation notes.</remark>
  </revision>
  <revision>
    <version>0.1</version>
    <date>2002-10-31</date>
    <initials>psa</initials>
    <remark>Initial version.</remark>
  </revision>
</header>
<section1 topic='Introduction'>
  <p>This specification documents the vCard-XML format currently in use within the Jabber community. A future specification will recommend a standards-track protocol to supersede this informational document.</p>
  <p>The basic functionality is for a user to store and retrieve an XML representation of his or her vCard using the data storage capabilities native to all existing Jabber server implementations. This is done by by sending an &lt;iq/&gt; of type "set" (storage) or "get" (retrieval) to one's Jabber server containing a &lt;vCard/&gt; child scoped by the 'vcard-temp' namespace, with the &lt;vCard/&gt; element containing the actual vCard-XML elements as defined by the vCard-XML DTD. Other users may then view one's vCard information.</p>
</section1>
<section1 topic='History'>
  <p>vCards are an existing and widely-used standard for personal user information storage, somewhat like an electronic business card. The vCard format is defined in &rfc2426;.</p>
  <p>In 1998 and 1999, Frank Dawson submitted four revisions of an Internet-Draft proposing to represent the standard vCard format in XML. When the Jabber project was originally looking for a method to store personal user information, the most recent revision was draft-dawson-vcard-xml-dtd-01 <note>This document is archived at &lt;<link url='http://www.watersprings.org/pub/id/draft-dawson-vcard-xml-dtd-01.txt'>http://www.watersprings.org/pub/id/draft-dawson-vcard-xml-dtd-01.txt</link>&gt;.</note>. He also submitted a -02 revision on November 15, 1998 <note>This document is archived at &lt;<link url='http://www.watersprings.org/pub/id/draft-dawson-vcard-xml-dtd-02.txt'>http://www.watersprings.org/pub/id/draft-dawson-vcard-xml-dtd-02.txt</link>&gt;.</note> and a -03 revision on June 22, 1999 <note>This document is archived at &lt;<link url='http://www.watersprings.org/pub/id/draft-dawson-vcard-xml-dtd-03.txt'>http://www.watersprings.org/pub/id/draft-dawson-vcard-xml-dtd-03.txt</link>&gt;.</note>.</p>
  <p>Unfortunately, Dawson's proposal did not move forward within the IETF's standards process. For reasons now lost in the mists of time, the Jabber project continued to use the DTD from draft-dawson-vcard-xml-dtd-01, making two small modifications to adapt it for use within Jabber (adding the JABBERID and DESC elements) but also specifying element names in all caps rather than lowercase as defined in draft-dawson-vcard-xml-dtd-01. In addition, the Jabber community followed the usage (but not DTD) in that draft regarding version information, including it as an attribute of the vCard element rather than as a child element. This format was implemented within Jabber under the 'vcard-temp' namespace.</p>
</section1>
<section1 topic='Use Cases'>
  <section2 topic="Retrieving One's vCard">
    <p>A user may retrieve his or her own vCard by sending XML of the following form to his or her own JID (the 'to' attibute SHOULD NOT be included):</p>
    <example caption="Requesting One's Own vCard"><![CDATA[
<iq 
    from='stpeter@jabber.org/Gabber'
    type='get'
    id='v1'>
  <vCard xmlns='vcard-temp'/>
</iq>
    ]]></example>
    <p>The server should then return the vCard to the user:</p>
    <example caption="Receiving One's Own vCard"><![CDATA[
<iq 
    to='stpeter@jabber.org/Gabber'
    type='result'
    id='v1'>
  <vCard xmlns='vcard-temp'>
    <FN>Peter Saint-Andre</FN>
    <N>
      <FAMILY>Saint-Andre</FAMILY>
      <GIVEN>Peter</GIVEN>
      <MIDDLE/>
    </N>
    <NICKNAME>stpeter</NICKNAME>
    <URL>http://www.xmpp.org/xsf/people/stpeter.shtml</URL>
    <BDAY>1966-08-06</BDAY>
    <ORG>
      <ORGNAME>XMPP Standards Foundation</ORGNAME>
      <ORGUNIT/>
    </ORG>
    <TITLE>Executive Director</TITLE>
    <ROLE>Patron Saint</ROLE>
    <TEL><WORK/><VOICE/><NUMBER>303-308-3282</NUMBER></TEL>
    <TEL><WORK/><FAX/><NUMBER/></TEL>
    <TEL><WORK/><MSG/><NUMBER/></TEL>
    <ADR>
      <WORK/>
      <EXTADD>Suite 600</EXTADD>
      <STREET>1899 Wynkoop Street</STREET>
      <LOCALITY>Denver</LOCALITY>
      <REGION>CO</REGION>
      <PCODE>80202</PCODE>
      <CTRY>USA</CTRY>
    </ADR>
    <TEL><HOME/><VOICE/><NUMBER>303-555-1212</NUMBER></TEL>
    <TEL><HOME/><FAX/><NUMBER/></TEL>
    <TEL><HOME/><MSG/><NUMBER/></TEL>
    <ADR>
      <HOME/>
      <EXTADD/>
      <STREET/>
      <LOCALITY>Denver</LOCALITY>
      <REGION>CO</REGION>
      <PCODE>80209</PCODE>
      <CTRY>USA</CTRY>
    </ADR>
    <EMAIL><INTERNET/><PREF/><USERID>stpeter@jabber.org</USERID></EMAIL>
    <JABBERID>stpeter@jabber.org</JABBERID>
    <DESC>
      More information about me is located on my 
      personal website: http://www.saint-andre.com/
    </DESC>
  </vCard>
</iq>
    ]]></example>
  </section2>
  <section2 topic="Updating One's vCard">
    <p>A user may update his or her vCard by sending an IQ of type "set" to the server, following the format in the previous use case.</p>
    <p>If a user attempts to perform an IQ set on another user's vCard, the server MUST return a 403 "Forbidden" error.</p>
  </section2>
  <section2 topic="Viewing Another User's vCard">
    <p>A user may view another user's vCard by sending an IQ of type "get" to the other user's bare JID. A compliant server MUST return the vCard to the requestor and not forward the IQ to the requestee's connected resource.</p>
    <example caption="Requesting Another User's vCard"><![CDATA[
<iq 
    to='jer@jabber.org'
    type='get'
    id='v3'>
  <vCard xmlns='vcard-temp'/>
</iq>
    ]]></example>
    <p>The server should then return the other user's vCard to the requestor:</p>
    <example caption="Receiving Another User's vCard"><![CDATA[
<iq 
    from='jer@jabber.org' 
    to='stpeter@jabber.org/home' 
    type='result'
    id='v3'>
  <vCard xmlns='vcard-temp'>
    <FN>JeremieMiller</FN>
    <N>
      <GIVEN>Jeremie</GIVEN>
      <FAMILY>Miller</FAMILY>
      <MIDDLE/>
    </N>
    <NICKNAME>jer</NICKNAME>
    <EMAIL><INTERNET/><PREF/><USERID>jeremie@jabber.org</USERID></EMAIL>
    <JABBERID>jer@jabber.org</JABBERID>
  </vCard>
</iq>
    ]]></example>
  </section2>
</section1>
<section1 topic='Security Considerations'>
  <p>There are no security features or concerns related to this proposal.</p>
</section1>
<section1 topic='IANA Considerations'>
  <p>This document requires no interaction with &IANA;.</p>
</section1>
<section1 topic='XMPP Registrar Considerations' anchor='registrar'>
  <section2 topic='Protocol Namespaces' anchor='registrar-protocol'>
    <p>The &REGISTRAR; includes the 'vcard-temp' namespace in its registry of official namespaces (see &NAMESPACES;).</p>
  </section2>
  <section2 topic='URI Query Types' anchor='registrar-querytypes'>
    <p>As authorized by &xep0147;, the XMPP Registrar maintains a registry of queries and key-value pairs for use in XMPP URIs (see &QUERYTYPES;).</p>
    <p>The "vcard" querytype is registered as a vCard-related action.</p>
    <example caption='vCard Action: IRI/URI'><![CDATA[
xmpp:romeo@montague.net?vcard
    ]]></example>
    <example caption='vCard Action: Resulting Stanza'><![CDATA[
<iq to='romeo@montague.net' type='get'>
  <vCard xmlns='vcard-temp'/>
</iq>
    ]]></example>
    <p>The following submission registers the "vcard" querytype.</p>
    <code><![CDATA[
<querytype>
  <name>vcard</name>
  <proto>vcard-temp</proto>
  <desc>enables retrieval of an entity's vCard data</desc>
  <doc>XEP-0054</doc>
</querytype>
    ]]></code>
  </section2>
</section1>
<section1 topic='Implementation Notes'>
  <p>Note the following:</p>
  <ul>
    <li>The correct capitalization of the wrapper element is &lt;vCard/&gt; (and XML element names are case-sensitive).</li>
    <li>All elements within the &lt;vCard/&gt; element MUST be in ALL CAPS (even though this is at odds with draft-dawson-vcard-xml-dtd-01).</li>
    <li>The country abbreviation is contained in a &lt;CTRY/&gt; element, <em>not</em> a &lt;COUNTRY/&gt; element (even though this is at odds with draft-dawson-vcard-xml-dtd-01).</li>
    <li>Phone numbers MUST be contained in a &lt;NUMBER&gt; element, not included as CDATA within the &lt;TEL/&gt; element.</li>
    <li>If no telephone number is included in a &lt;TEL/&gt; element, an empty &lt;NUMBER/&gt; child MUST be included.</li>
    <li>Email addresses MUST be contained in a &lt;USERID&gt; element, not included as CDATA within the &lt;EMAIL/&gt; element.</li>
    <li>Some Jabber implementations add a 'version' attribute to the &lt;vCard/&gt; element, with the value set at "2.0" or "3.0". The DTD is incorrect, and the examples in draft-dawson-vcard-xml-dtd-01 clearly show that version information is to be included by means of a 'version' attribute, not the &lt;VERSION/&gt; element as defined in the DTD. However, to conform to draft-dawson-vcard-xml-dtd-01, the value should be "3.0", not "2.0".</li>
  </ul>
</section1>
<section1 topic='DTD'>
  <p>The following DTD is a slightly modified version of that contained in draft-dawson-vcard-xml-dtd-01. The only modifications were to add the JABBERID and DESC elements.</p>
  <code><![CDATA[
<?xml version="1.0" encoding="UTF-8"?>

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IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE
USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR
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PARTICULAR PURPOSE.
-->

<!-- ==== -->

<!-- NOTE: the following root element is not used in the
           modified vcard-temp DTD published by the Jabber 
           project (now XMPP Standards Foundation) and is
           included here only for historical purposes; 
           implementations that comply with vcard-temp must
           specify the root element as vCard, not xCard. -->

<!-- Root element and container for one
  or more vCard objects -->
<!ELEMENT xCard (vCard)+>

<!-- Individual vCard container -->
<!ELEMENT vCard (
  (VERSION, FN, N),
  (NICKNAME?,
  PHOTO?, 
  BDAY?, 
  ADR?, 
  LABEL?, 
  TEL?, 
  EMAIL?,
  JABBERID?,
  MAILER?, 
  TZ?, 
  GEO?, 
  TITLE?, 
  ROLE?,  
  LOGO?, 
  AGENT?, 
  ORG?, 
  CATEGORIES?, 
  NOTE?, 
  PRODID?, 
  REV?, 
  SORT-STRING?, 
  SOUND?, 
  UID?, 
  URL?, 
  CLASS?, 
  KEY?,
  DESC?
)*)>

  <!-- vCard specification version property. 
    This MUST be 2.0, if the document conforms to RFC 2426. -->
  <!ELEMENT VERSION (#PCDATA)>

  <!-- Formatted or display name property. -->
  <!ELEMENT FN (#PCDATA)>

  <!-- Structured name property. Name components with multiple
    values must be specified as a comma separated
	list of values. -->
  <!ELEMENT N ( FAMILY?, GIVEN?, MIDDLE?, PREFIX?, SUFFIX?)>
  
    <!ELEMENT FAMILY (#PCDATA)>
    <!ELEMENT GIVEN (#PCDATA)>
    <!ELEMENT MIDDLE (#PCDATA)>
    <!ELEMENT PREFIX (#PCDATA)>
    <!ELEMENT SUFFIX (#PCDATA)>

  <!-- Nickname property. Multiple nicknames must be
    specified as a comma separated list value. -->
  <!ELEMENT NICKNAME (#PCDATA)>

  <!-- Photograph property. Value is either a BASE64 encoded
    binary value or a URI to the external content. -->
  <!ELEMENT PHOTO ((TYPE, BINVAL) | EXTVAL)>

  <!-- Birthday property. Value must be an ISO 8601 formatted
    date or date/time value. -->
  <!ELEMENT BDAY (#PCDATA)>

  <!-- Structured address property. Address components with
    multiple values must be specified as a comma separated list
    of values. -->
  <!ELEMENT ADR (
    HOME?, 
    WORK?, 
    POSTAL?, 
    PARCEL?, 
    (DOM | INTL)?, 
    PREF?, 
    POBOX?, 
    EXTADD?, 
    STREET?, 
    LOCALITY?, 
    REGION?, 
    PCODE?, 
    CTRY?
  )>
  
    <!ELEMENT POBOX (#PCDATA)>
    <!ELEMENT EXTADD (#PCDATA)>
    <!ELEMENT STREET (#PCDATA)>
    <!ELEMENT LOCALITY (#PCDATA)>
    <!ELEMENT REGION (#PCDATA)>
    <!ELEMENT PCODE (#PCDATA)>
    <!ELEMENT CTRY (#PCDATA)>

  <!-- Address label property. -->
  <!ELEMENT LABEL (
    HOME?, 
    WORK?, 
    POSTAL?, 
    PARCEL?, 
    (DOM | INTL)?, 
    PREF?, 
    LINE+
  )>

    <!-- Individual label lines. -->
    <!ELEMENT LINE (#PCDATA)>

  <!-- Telephone number property. -->
  <!ELEMENT TEL (
    HOME?, 
    WORK?, 
    VOICE?, 
    FAX?, 
    PAGER?, 
    MSG?, 
    CELL?, 
    VIDEO?, 
    BBS?, 
    MODEM?, 
    ISDN?, 
    PCS?, 
    PREF?, 
    NUMBER
  )>

    <!-- Phone number value. -->
    <!ELEMENT NUMBER (#PCDATA)>

  <!-- Email address property. Default type is INTERNET. -->
  <!ELEMENT EMAIL (
    HOME?, 
    WORK?, 
    INTERNET?, 
    PREF?, 
    X400?, 
    USERID
  )>

    <!ELEMENT USERID (#PCDATA)>
  
  <!-- NOTE: the following element was added by the Jabber
             project (now XMPP Standards Foundation) to
             handle Jabber IDs; the value must be in the
             form of user@host -->

  <!ELEMENT JABBERID (#PCDATA)>
  
  <!-- Mailer (e.g., Mail User Agent Type) property. -->
  <!ELEMENT MAILER (#PCDATA)>
  
  <!-- Time zone's Standard Time UTC offset. Value must be an
    ISO 8601 formatted UTC offset. -->
  <!ELEMENT TZ (#PCDATA)>
  
  <!-- Geographical position. Values are the decimal degress of
    LATitude and LONgitude. The value should be specified to 
    six decimal places.-->
  <!ELEMENT GEO (LAT, LON)>
  
    <!-- Latitude value. -->
    <!ELEMENT LAT (#PCDATA)>
	
    <!-- Longitude value. -->
    <!ELEMENT LON (#PCDATA)>
	
  <!-- Title property. -->
  <!ELEMENT TITLE (#PCDATA)>

  <!-- Role property. -->
  <!ELEMENT ROLE (#PCDATA)>
  
  <!-- Organization logo property. -->
  <!ELEMENT LOGO ((TYPE, BINVAL) | EXTVAL)>
  
  <!-- Administrative agent property. -->
  <!ELEMENT AGENT (vCard | EXTVAL)>
  
  <!-- Organizational name and units property. -->
  <!ELEMENT ORG (ORGNAME, ORGUNIT*)>
  
    <!ELEMENT ORGNAME (#PCDATA)>
  
    <!ELEMENT ORGUNIT (#PCDATA)>
  
  <!-- Application specific categories property. -->
  <!ELEMENT CATEGORIES (KEYWORD+)>
  
    <!ELEMENT KEYWORD (#PCDATA)>
  
  <!-- Commentary note property. -->
  <!ELEMENT NOTE (#PCDATA)>
  
  <!-- Identifier of product that generated the vCard property. -->
  <!ELEMENT PRODID (#PCDATA)>
  
  <!-- Last revised property. The value must be an 
       ISO 8601 formatted UTC date/time. -->
  <!ELEMENT REV (#PCDATA)>
  
  <!-- Sort string property. -->
  <!ELEMENT SORT-STRING (#PCDATA)>
  
  <!-- Formatted name pronunciation property. The value is 
       either a textual phonetic pronunciation, a BASE64 
       encoded binary digital audio pronunciation or a URI to
       an external binary digital audio pronunciation.-->	
  <!ELEMENT SOUND (PHONETIC | BINVAL | EXTVAL)>
  
    <!-- Textual phonetic pronunciation. -->
    <!ELEMENT PHONETIC (#PCDATA)>
   
  <!-- Unique identifier property. -->
  <!ELEMENT UID (#PCDATA)>
  
  <!-- Directory URL property. -->
  <!ELEMENT URL (#PCDATA)>

  <!-- NOTE: the following element was added by the Jabber
             project (now XMPP Standards Foundation) to
             handle free-form descriptive text. -->

  <!ELEMENT DESC (#PCDATA)>
  
  <!-- Privacy classification property. -->
  <!ELEMENT CLASS (PUBLIC | PRIVATE | CONFIDENTIAL)>
  
    <!ELEMENT PUBLIC EMPTY>
	
    <!ELEMENT PRIVATE EMPTY>
	
    <!ELEMENT CONFIDENTIAL EMPTY>
	
  <!-- Authentication credential or encryption  key property. -->
  <!ELEMENT KEY (TYPE?, CRED)>
  
    <!ELEMENT CRED (#PCDATA)>

<!-- ==== -->

<!-- Common elements. -->

<!-- Addressing type indicators. -->
<!ELEMENT HOME EMPTY>
<!ELEMENT WORK EMPTY>
<!ELEMENT POSTAL EMPTY>
<!ELEMENT PARCEL EMPTY>
<!ELEMENT DOM EMPTY>
<!ELEMENT INTL EMPTY>
<!ELEMENT PREF EMPTY>
<!ELEMENT VOICE EMPTY>
<!ELEMENT FAX EMPTY>
<!ELEMENT PAGER EMPTY>
<!ELEMENT MSG EMPTY>
<!ELEMENT CELL EMPTY>
<!ELEMENT VIDEO EMPTY>
<!ELEMENT BBS EMPTY>
<!ELEMENT MODEM EMPTY>
<!ELEMENT ISDN EMPTY>
<!ELEMENT PCS EMPTY>
<!ELEMENT INTERNET EMPTY>
<!ELEMENT X400 EMPTY>

<!-- Format type parameter. -->
<!ELEMENT TYPE (#PCDATA)>

<!-- Base64 encoded binary value. -->
<!ELEMENT BINVAL (#PCDATA)>

<!-- URI to external binary value -->
<!ELEMENT EXTVAL (#PCDATA)>

<!-- ==== -->
  ]]></code>
</section1>
</xep>