January 2002
Beginner
480 pages
13h 15m
English
Content preview from Programming JabberBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
The Demo::JBook Script
Before taking the Demo::JBook script apart, let’s have a look at the script in its entirety, shown in
Example 10-6. Written in Perl, Demo::JBook uses the Jabber::Connection library.
Example 10-6. The Demo::JBook script, written in Perl
package Demo::JBook; use strict; use Jabber::Connection; use Jabber::NodeFactory; use Jabber::NS qw(:iq :misc); use constant SERVER => 'gnu.mine.nu'; use constant USER => 'jbook'; use constant PASS => 'pass'; use constant RESOURCE => 'jbook'; use constant JUD => 'jud.gnu.mine.nu'; sub handler { my $r = shift; my @a = $r->args; my $nf = Jabber::NodeFactory->new; $r->content_type('text/html'); $r->send_http_header; $r->print("<html><head><title>JBook</title></head><body>"); $r->print("<h1><a href="/jbook">JBook</a></h1>"); # Connect to the Jabber server my $c = Jabber::Connection->new(server => SERVER); unless ($c->connect) { $r->print("Sorry, no connection to Jabber available at ".SERVER); $r->print("</body></html>"); return; } $c->auth(USER, PASS, RESOURCE); # No arguments: Instructions if (scalar @a == 0) { # Construct IQ-get in iq:search namespace my $iq = $nf->newNode('iq'); $iq->attr('to', JUD); $iq->attr('type', IQ_GET); $iq->insertTag('query', NS_SEARCH); # Send the IQ-get my $result = $c->ask($iq); if ($result->attr('type') eq IQ_ERROR) { $r->print("sorry, no connection to JUD available at ".JUD); $r->print("</body></html>"); $c->disconnect; return; } my $info = $result->getTag('', NS_SEARCH); # Display the results in ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.