SIMPLE H. Schulzrinne Internet-Draft Columbia U. Expires: August 8, 2004 February 8, 2004 CIPID: Contact Information in Presence Information Data Format draft-ietf-simple-cipid-00 Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http:// www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on August 8, 2004. Copyright Notice Copyright (C) The Internet Society (2004). All Rights Reserved. Abstract The Contact Information for Presence Information Data Format (CIPID) adds elements to the Presence Information Data Format (PIDF) that provide additional contact information about a presentity and its contacts, including references to address book entries and icons. Schulzrinne Expires August 8, 2004 [Page 1] Internet-Draft CIPID February 2004 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Card Element . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Homepage Element . . . . . . . . . . . . . . . . . . . . . . . 5 4. Icon Element . . . . . . . . . . . . . . . . . . . . . . . . . 6 5. Example . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6. Schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 7.1 URN Sub-Namespace Registration for 'urn:ietf:params:xml:ns:pidf:cipid' . . . . . . . . . . . . . 9 8. Security Considerations . . . . . . . . . . . . . . . . . . . 10 Normative References . . . . . . . . . . . . . . . . . . . . . 11 Informative References . . . . . . . . . . . . . . . . . . . . 12 Author's Address . . . . . . . . . . . . . . . . . . . . . . . 12 A. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 13 Intellectual Property and Copyright Statements . . . . . . . . 14 Schulzrinne Expires August 8, 2004 [Page 2] Internet-Draft CIPID February 2004 1. Introduction In its function of facilitating communication, the usefulness of presence information can be enhanced by providing basic information about a presentity or contact. This document describes a basic set of information elements that allow a watcher to retrieve additional information about a presentity or contact. We describe elements for providing a "business card", references to the homepage and an icon. All can be used either for a presentity or for a tuple (or both). This additional presence information can be used in PIDF [3] documents or together with RPID [4]. Schulzrinne Expires August 8, 2004 [Page 3] Internet-Draft CIPID February 2004 2. Card Element The element includes a URI pointing to a business card, e.g., in LDIF or vCard format. Schulzrinne Expires August 8, 2004 [Page 4] Internet-Draft CIPID February 2004 3. Homepage Element The element provides a URI pointing to general information about the tuple or presentity, typically a web home page. Schulzrinne Expires August 8, 2004 [Page 5] Internet-Draft CIPID February 2004 4. Icon Element The element provides a URI pointing to an image (icon) representing the tuple or presentity. The watcher MAY use this information to represent the tuple or presentity in a graphical user interface. Presentities SHOULD provide images of sizes and aspect ratios that are appropriate for rendering as an icon. Schulzrinne Expires August 8, 2004 [Page 6] Internet-Draft CIPID February 2004 5. Example An example, combining RPID and CIPID, is shown in Fig. Figure 1. http://example.com/~someone http://example.com/~someone/icon.gif http://example.com/~someone/card.vcd assistant presentity open sip:secretary@example.com assistant http://example.com/~secretary http://example.com/~secretary/icon.gif http://example.com/~secretary/card.vcd My secretary A CIPID Example Figure 1 Schulzrinne Expires August 8, 2004 [Page 7] Internet-Draft CIPID February 2004 6. Schema The schema is shown in Fig. Figure 2. Describes CIPID tuple extensions for PIDF. The CIPID Schema Figure 2 Schulzrinne Expires August 8, 2004 [Page 8] Internet-Draft CIPID February 2004 7. IANA Considerations This document calls for IANA to register a new XML namespace URNs per [2]. 7.1 URN Sub-Namespace Registration for 'urn:ietf:params:xml:ns:pidf:cipid' URI: urn:ietf:params:xml:ns:cipid Description: This is the XML namespace for XML elements defined by RFCXXXX to describe contact information presence information extensions for the status element in the PIDF presence document format in the application/cpim-pidf+xml content type. Registrant Contact: IETF, SIMPLE working group, simple@ietf.org; Henning Schulzrinne, hgs@cs.columbia.edu XML: BEGIN CIPID -- Contact Information in Presence Information Data Format

Namespace for contact information presence extension (status)

urn:ietf:params:xml:ns:cipid

See RFCXXXX.

END Schulzrinne Expires August 8, 2004 [Page 9] Internet-Draft CIPID February 2004 8. Security Considerations The security issues are similar to those for RPID [4]. Watchers need to restrict which types of content pointed to by elements they render. Also, accessing these URIs may in turn provide hints that the watcher is currently using the presence application. Schulzrinne Expires August 8, 2004 [Page 10] Internet-Draft CIPID February 2004 Normative References [1] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [2] Mealling, M., "The IETF XML Registry", draft-mealling-iana-xmlns-registry-05 (work in progress), June 2003. [3] Sugano, H. and S. Fujimoto, "Presence Information Data Format (PIDF)", draft-ietf-impp-cpim-pidf-08 (work in progress), May 2003. Schulzrinne Expires August 8, 2004 [Page 11] Internet-Draft CIPID February 2004 Informative References [4] Schulzrinne, H., "RPID -- Rich Presence Information Data Format", draft-ietf-simple-rpid-00 (work in progress), July 2003. Author's Address Henning Schulzrinne Columbia University Department of Computer Science 450 Computer Science Building New York, NY 10027 US Phone: +1 212 939 7042 EMail: hgs+simple@cs.columbia.edu URI: http://www.cs.columbia.edu Schulzrinne Expires August 8, 2004 [Page 12] Internet-Draft CIPID February 2004 Appendix A. Acknowledgments This document is based on the discussions within the IETF SIMPLE working group. Vijay Gurbani, Paul Kyzivat, Jon Peterson and Jonathan Rosenberg have provided helpful comments. Schulzrinne Expires August 8, 2004 [Page 13] Internet-Draft CIPID February 2004 Intellectual Property Statement The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementors or users of this specification can be obtained from the IETF Secretariat. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director. Full Copyright Statement Copyright (C) The Internet Society (2004). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assignees. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION Schulzrinne Expires August 8, 2004 [Page 14] Internet-Draft CIPID February 2004 HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Acknowledgment Funding for the RFC Editor function is currently provided by the Internet Society. Schulzrinne Expires August 8, 2004 [Page 15]