IMAP4 Non-synchronizing Literals
RFC 7888
Document | Type |
RFC - Proposed Standard
(May 2016; No errata)
Obsoletes RFC 2088
|
|
---|---|---|---|
Author | Alexey Melnikov | ||
Last updated | 2018-12-20 | ||
Replaces | draft-melnikov-rfc2088bis | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | S Moonesamy | ||
Shepherd write-up | Show (last changed 2016-03-05) | ||
IESG | IESG state | RFC 7888 (Proposed Standard) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Ben Campbell | ||
Send notices to | "S Moonesamy" <sm+ietf@elandsys.com>, Barry Leiba <barryleiba@computer.org> | ||
IANA | IANA review state | IANA OK - Actions Needed | |
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) A. Melnikov, Ed. Request for Comments: 7888 Isode Ltd Obsoletes: 2088 May 2016 Category: Standards Track ISSN: 2070-1721 IMAP4 Non-synchronizing Literals Abstract The Internet Message Access Protocol (RFC 3501) contains the "literal" syntactic construct for communicating strings. When sending a literal from client to server, IMAP requires the client to wait for the server to send a command continuation request between sending the octet count and the string data. This document specifies an alternate form of literal that does not require this network round trip. This document specifies 2 IMAP extensions: LITERAL+ and LITERAL-. LITERAL+ allows the alternate form of literals in all IMAP commands. LITERAL- is the same as LITERAL+, but it disallows the alternate form of literals unless they are 4096 bytes or less. This document obsoletes RFC 2088. 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/rfc7888. Melnikov Standards Track [Page 1] RFC 7888 IMAP4 Non-synchronizing Literals May 2016 Copyright Notice Copyright (c) 2016 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. 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 . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Specification . . . . . . . . . . . . . . . . . . . . . . . . 3 4. Considerations on When to Use and Not to Use Synchronizing Literals . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5. LITERAL- Capability . . . . . . . . . . . . . . . . . . . . . 5 6. Interaction with BINARY Extension . . . . . . . . . . . . . . 6 7. Interaction with MULTIAPPEND Extension . . . . . . . . . . . 6 8. Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . . 6 9. Security Considerations . . . . . . . . . . . . . . . . . . . 7 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 7 11.1. Normative References . . . . . . . . . . . . . . . . . . 7 11.2. Informative References . . . . . . . . . . . . . . . . . 8 Appendix A. Changes since RFC 2088 . . . . . . . . . . . . . . . 9 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 9 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 9 Melnikov Standards Track [Page 2] RFC 7888 IMAP4 Non-synchronizing Literals May 2016 1. Introduction The Internet Message Access Protocol [RFC3501] contains the "literal" syntactic construct for communicating strings. When sending a literal from client to server, IMAP requires the client to wait for the server to send a command continuation request between sending the octet count and the string data. This document specifies an alternate form of literal that does not require this network roundShow full document text