Instant Messaging with Jabber/XMPP

Instant Messaging with Jabber/XMPP John P. Mulligan @ CPLUG January 8, 2008

a little history

Proprietary Protocols

Proprietary Protocols ICQ (1996)

Proprietary Protocols ICQ (1996) AOL IM (1997)

Proprietary Protocols ICQ (1996) AOL IM (1997) Yahoo! Messenger (1998)

Proprietary Protocols ICQ (1996) AOL IM (1997) Yahoo! Messenger (1998) MSN (1999)

Lame. • Can only talk to users on the same system

Lame. • Can only talk to users on the same system • Centralized, authoritative server

Lame. • Can only talk to users on the same system • Centralized, authoritative server • No choice of client software

Lame. • Can only talk to users on the same system • Centralized, authoritative server • No choice of client software • Not nearly enough XML

Jeremie Miller and Jabber “...a couple of friends were playing around with a little Perl script that would send messages back and forth between ICQ and AIM -- two clients could connect to it and it would rewrite messages. So I thought, ‘Well heck, it isn't that hard to write an instant messaging system.’”

XMPP IETF formalizes Jabber as the Extensible Messaging and Presence Protocol (XMPP) RFC 3920 / RFC 3921 (2004)

Google Talk Combination VoIP and IM application using XMPP (2005)

three years later...

What are people using? Millions of Active Users Source: Wikipedia article on Instant Messaging, retrieved January 4, 2008. So who knows if any of it is true.

Extensible Messaging and Presence Protocol (XMPP)

XMPP Features

XMPP Features • Decentralized

XMPP Features • Decentralized • Open standards

XMPP Features • Decentralized • Open standards • Security

XMPP Features • Decentralized • Open standards • Security • Flexibility

XMPP Features • Decentralized • Open standards • Security • Flexibility • Has more XML

Decentralization • No central, authoritative server • Anyone can run a server • Communication is server to server • Unique Jabber ID (JID) for each user • Log in from multiple locations (Resources)

XMPP Messaging Client Client alice@example.com bob@jabber.org Server Server jabber.org jabber.org

Jabber/XMPP Software

XMPP Clients • Google Talk • iChat • Pidgin (formerly Gaim) • Psi

XMPP Servers • ejabberd (Erlang) • jabberd2 (C) • Openﬁre (Java) • Sun Java System IM (Java)

Ignite Realtime • Openﬁre Java-based cross-platform XMPP server • Spark Cross-platform XMPP client • Smack API Java XMPP client library • XIFF API Flash XMPP client library

Openﬁre • Cross-platform (Java) • Database independent • Web based admin • File transfers and group chats • Gateways to other IM networks

Extend with Plug-ins • MotD • Broadcast messages • Content ﬁltering • Presence through HTTP • Asterisk and SIP management

Administration Console

Openﬁre Enterprise • Reporting • Advanced VoIP • Browser based IM client • Client control • Archiving • Customer chat

XMPP and IRC • Multi-protocol clients (e.g. Pidgin) • Application plug-ins (irssi-xmpp) • Bitlbee

XMPP and IRC ircd AIM irssi Openﬁre Google Bitlbee Talk

So what?

Jabber rocks. • No more reliance on a single company • Talk to anyone on any IM system • You can run a private IM system • Open, secure, extensible

Openﬁre rocks. • XMPP server with lots of features • Open source version is free • Amazingly simple to install • Slick web-based admin console • Scalable, secure, stable

Instant Messaging with Jabber/XMPP

Links and References • The Messenger: An Interview with Jabber’s Creator, Jeremie Miller (2001) http://www.linux-mag.com/id/902?r=s • Wikipedia “XMPP” Article http://en.wikipedia.org/wiki/XMPP • Ignite Realtime (Openﬁre) http://www.igniterealtime.org/

Links and References • Jive Software (Openﬁre) http://www.jivesoftware.com/ • Psi (XMPP Client) http://psi-im.org/ • Bitlbee (IRC to IM Gateway) http://www.bitlbee.org/ • Thinkhole Labs (Presentation Slides) http://thinkhole.org/gallery/v/slides/

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http://facemain.com	516
http://thinkhole.org	41
http://www.slideshare.net	28
http://www.jabber-server.de	22
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url_unknown	6
http://trunk.ly	4
http://webcache.googleusercontent.com	3
http://translate.googleusercontent.com	3
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http://74.125.155.132	1
http://74.125.43.132	1

Instant Messaging with Jabber/XMPP

by johnx on Mar 01, 2008

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Instant Messaging with Jabber/XMPP — Presentation Transcript