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Scheduling Extensions to CalDAV
RFC 6638

Internet Engineering Task Force (IETF)                          C. Daboo
Request for Comments: 6638                                    Apple Inc.
Updates: 4791, 5546                                      B. Desruisseaux
Category: Standards Track                                         Oracle
ISSN: 2070-1721                                                June 2012

                    Scheduling Extensions to CalDAV

Abstract

   This document defines extensions to the Calendaring Extensions to
   WebDAV (CalDAV) "calendar-access" feature to specify a standard way
   of performing scheduling operations with iCalendar-based calendar
   components.  This document defines the "calendar-auto-schedule"
   feature of CalDAV.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6638.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Daboo & Desruisseaux         Standards Track                    [Page 1]
RFC 6638                    CalDAV Scheduling                  June 2012

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1. Introduction ....................................................5
      1.1. Terminology ................................................6
      1.2. Notational Conventions .....................................7
      1.3. XML Namespaces and Processing ..............................7
   2. Scheduling Support ..............................................8
      2.1. Scheduling Outbox Collection ...............................9
           2.1.1. CALDAV:schedule-outbox-URL Property ................10
      2.2. Scheduling Inbox Collection ...............................10
           2.2.1. CALDAV:schedule-inbox-URL Property .................11
      2.3. Calendaring Reports Extensions ............................12
      2.4. Additional Principal Properties ...........................12
           2.4.1. CALDAV:calendar-user-address-set Property ..........12
           2.4.2. CALDAV:calendar-user-type Property .................13
   3. Scheduling Operations ..........................................14
      3.1. Identifying Scheduling Object Resources ...................14
      3.2. Handling Scheduling Object Resources ......................15
           3.2.1. Organizer Scheduling Object Resources ..............15
                  3.2.1.1. Create ....................................16
                  3.2.1.2. Modify ....................................17
                  3.2.1.3. Remove ....................................18
           3.2.2. Attendee Scheduling Object Resources ...............18
                  3.2.2.1. Allowed "Attendee" Changes ................18
                  3.2.2.2. Create ....................................19
                  3.2.2.3. Modify ....................................20
                  3.2.2.4. Remove ....................................21
           3.2.3. HTTP Methods .......................................21
                  3.2.3.1. PUT .......................................22

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