Calendar Access Protocol (CAP)
RFC 4324

 
Document Type RFC - Experimental (December 2005; No errata)
Was draft-royer-calsch-cap (individual in gen area)
Last updated 2013-03-02
Stream IETF
Formats plain text pdf html
Stream WG state (None)
Consensus Unknown
Document shepherd No shepherd assigned
IESG IESG state RFC 4324 (Experimental)
Telechat date
Responsible AD Ted Hardie
Send notices to Doug@IntelliCal.com,George.Babics@Oracle.com,phb@mit.edu
Network Working Group                                           D. Royer
Request for Comments: 4324                               IntelliCal, LLC
Category: Experimental                                         G. Babics
                                                                  Oracle
                                                              S. Mansour
                                                                    eBay
                                                           December 2005

                     Calendar Access Protocol (CAP)

Status of This Memo

   This memo defines an Experimental Protocol for the Internet
   community.  It does not specify an Internet standard of any kind.
   Discussion and suggestions for improvement are requested.
   Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   The Calendar Access Protocol (CAP) described in this memo permits a
   Calendar User (CU) to utilize a Calendar User Agent (CUA) to access
   an iCAL-based Calendar Store (CS).  At the time of this writing,
   three vendors are implementing CAP, but it has already been
   determined that some changes are needed.  In order to get
   implementation experience, the participants felt that a CAP
   specification is needed to preserve many years of work.  Many
   properties in CAP which have had many years of debate, can be used by
   other iCalendar protocols.

Royer, et al.                 Experimental                      [Page 1]
RFC 4324                Calendar Access Protocol           December 2005

Table of Contents

   1. Introduction ....................................................5
      1.1. Formatting Conventions .....................................5
      1.2. Related Documents ..........................................6
      1.3. Definitions ................................................7
   2. Additions to iCalendar .........................................11
      2.1.  New Value Types (Summary) ................................14
         2.1.1. New Parameters (summary) .............................14
         2.1.2. New or Updated Properties (summary) ..................14
         2.1.3. New Components (summary) .............................17
      2.2.  Relationship of RFC-2446 (ITIP) to CAP ...................18
   3. CAP Design .....................................................20
      3.1. System Model ..............................................20
      3.2. Calendar Store Object Model ...............................20
      3.3. Protocol Model ............................................21
         3.3.1. Use of BEEP, MIME, and iCalendar .....................22
   4. Security Model .................................................23
      4.1. Calendar User and UPNs ....................................23
         4.1.1. UPNs and Certificates ................................24
         4.1.2. Anonymous Users and Authentication ...................25
         4.1.3. User Groups ..........................................25
      4.2. Access Rights .............................................26
         4.2.1. Access Control and NOCONFLICT ........................26
         4.2.2. Predefined VCARs .....................................26
         4.2.3. Decreed VCARs ........................................28
      4.3. CAP Session Identity ......................................28
   5. CAP URL and Calendar Address ...................................29
   6. New Value Types ................................................30
      6.1. Property Value Data Types .................................30
         6.1.1. CAL-QUERY Value Type .................................30
            6.1.1.1. [NOT] CAL-OWNERS() ..............................36
            6.1.1.2. CURRENT-TARGET() ................................37
            6.1.1.3. PARAM() .........................................37
            6.1.1.4. SELF() ..........................................38
            6.1.1.5. STATE() .........................................38
            6.1.1.6. Use of Single Quote .............................38
            6.1.1.7. Comparing DATE and DATE-TIME Values .............39
            6.1.1.8. DTEND and DURATION ..............................40
            6.1.1.9. [NOT] LIKE ......................................40
            6.1.1.10. Empty vs. NULL .................................41
            6.1.1.11. [NOT] IN .......................................41
            6.1.1.12. DATE-TIME and TIME Values in a WHERE Clause ....42
            6.1.1.13. Multiple Contained Components ..................43
            6.1.1.14. Example, Query by UID ..........................43
            6.1.1.15. Query by Date-Time Range .......................43
            6.1.1.16. Query for All Unprocessed Entries ..............44
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