IMAP4 Extension for Returning MYRIGHTS Information in Extended LIST
draft-ietf-extra-imap-list-myrights-05

Document Type Active Internet-Draft (extra WG)
Last updated 2018-05-14 (latest revision 2018-04-30)
Replaces draft-murchison-imap-list-myrights
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Jiankang Yao
Shepherd write-up Show (last changed 2018-04-28)
IESG IESG state Waiting for AD Go-Ahead
Consensus Boilerplate Yes
Telechat date On agenda of 2018-06-07 IESG telechat
Needs 9 more YES or NO OBJECTION positions to pass.
Responsible AD Alexey Melnikov
Send notices to Jiankang Yao <yaojk@cnnic.cn>;brong@fastmailstream.com;aamelnikov@fastmail.fm
IANA IANA review state IANA OK - Actions Needed
IANA action state None
EXTRA                                                       K. Murchison
Internet-Draft                                               B. Gondwana
Intended status: Standards Track                                FastMail
Expires: October 31, 2018                                 April 29, 2018

  IMAP4 Extension for Returning MYRIGHTS Information in Extended LIST
                 draft-ietf-extra-imap-list-myrights-05

Abstract

   This document defines an extension to the Internet Message Access
   Protocol (IMAP) LIST command that allows the client to request the
   set of rights that the logged-in user has been granted on mailboxes,
   along with other information typically returned by the LIST command.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on October 31, 2018.

Copyright Notice

   Copyright (c) 2018 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
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   2
   3.  MYRIGHTS Return Option to LIST Command  . . . . . . . . . . .   2
   4.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   5.  Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . .   4
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   7.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   4
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
     8.1.  Registration of IMAP capability LIST-MYRIGHTS . . . . . .   4
     8.2.  Registration of LIST-EXTENDED option MYRIGHTS . . . . . .   4
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   5
   10. Normative References  . . . . . . . . . . . . . . . . . . . .   5
   Appendix A.  Change History (To be removed by RFC Editor before
                publication) . . . . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   IMAP [RFC3501] clients typically fetch the set of rights granted on
   mailboxes so they can expose the allowed functionality to the logged-
   in user.  In order to do that, the client is forced to issue a LIST
   or LSUB command to list all available mailboxes, followed by a
   MYRIGHTS command for each mailbox found.  This document defines an
   extension to the to IMAP LIST command that is identified by the
   capability string "LIST-MYRIGHTS".  The LIST-MYRIGHTS extension
   allows the client to request the set of rights that the logged-in
   user has been granted on mailboxes, along with other information
   typically returned by the LIST command.

2.  Conventions Used in This Document

   In examples, "C:" indicates lines sent by a client that is connected
   to a server.  "S:" indicates lines sent by the server to the client.

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   [RFC2119].

3.  MYRIGHTS Return Option to LIST Command

   [RFC4314] defines the MYRIGHTS command which is used by an IMAP
   client to determine the set of rights that the logged-in user has
   been granted on a given mailbox.  Frequently, a client will have to
   look up the rights for some or all of the mailboxes returned by the
   LIST command.  Doing so in multiple MYRIGHTS commands wastes

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