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Understanding XMPP: Registration and Enumservice Overview

This draft by Alexander Mayrhofer provides an in-depth exploration of the Extensible Messaging and Presence Protocol (XMPP), also known as Jabber. It outlines its functionalities including instant messaging, presence information, and VoIP applications. The document also discusses the registration of XMPP Enumservices and specifies the format for XMPP URIs/IRIs as per RFC4622. It addresses the need for proper authentication handling and internationalization within XMPP services. The draft aims for adoption as a working group item to resolve outstanding issues and finalize the standard.

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Understanding XMPP: Registration and Enumservice Overview

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  1. XMPP Enumservice registrationdraft-mayrhofer-enum-xmpp-00 Alexander Mayrhofer, enum.at mailto:alexander.mayrhofer@enum.at IETF67, San Diego, CA, USA draft-mayrhofer-enum-xmpp

  2. What is XMPP? • "Extensible Messaging and Presence Protocol ("Jabber" protocol) • Streaming XML elements between endpoints in close to real time • RFC3920/3921 (core, IM+presence) • Additional standardization through "Jabber Software Foundation" (XEPs – "XMPP Enhancement Proposals, formerly JEPs) draft-mayrhofer-enum-xmpp

  3. What is it being used for? • Instant Messaging • Presence ("Roster") • VoIP (Jingle/XEP-0166) • Google Talk, Dingaling, chan_jingle, etc.. • The IETF jabber rooms  • Vast amount of clients available • PC • PDA • Mobile (potential SMS replacement?) draft-mayrhofer-enum-xmpp

  4. XMPP IRIs/URIs • Defined in RFC4622 (July 2006) • Most simplest example: • xmpp:axelm@jabber.org • But: • Internationalized • xmpp:ji%C5%99i@%C4%8Dechy.example/v%20Praze • Authentication/message component • xmpp://axelm@jabber.org/enum@ietf.org?hi%20there draft-mayrhofer-enum-xmpp

  5. XMPP Enumservice • Enumservice name: "XMPP" • Enumservice type: "xmpp" • URI/IRI schemes: "xmpp" • No subtypes • Example: @ IN NAPTR 100 10 "u" "E2U+xmpp" "!^.*$!xmpp:axelm@jabber.org" . draft-mayrhofer-enum-xmpp

  6. XMPP Enumservice • Special considerations: • URI SHOULD NOT contain authentication component: • xmpp://axelm@jabber.org/support@jabber.org • Internationalized Resource Indentifiers – no wording about this yet. • Hence, currently allowed in Enumservice.. • Do we care? • More issues? draft-mayrhofer-enum-xmpp

  7. Draft status • Currently -00, individual draft • Straightforward Enumservice registration • Request adoption of WG item • Work on remaining open issues (IRIs?) • Then last call it? draft-mayrhofer-enum-xmpp

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