gistfile1.rb

require 'rubygems'
require 'blather/client'

setup 'skammer@jabber.ru', 'pass'
 
when_ready { puts "Connected ! send messages to #{jid.stripped}." }
 
subscription :request? do |s|
  write s.approve!
end
 
message :chat?, :body => 'exit' do |m|
  say m.from, 'Exiting ...'
  shutdown
end

message :chat?, :body => /status/ do |m|

  # Don't blame my code. I know it sucks.
  # So, here I'm generating some system statistics

  system_status = `uname -srp` + `uptime` + `df -h /|tail -1| awk '{ print "HDD: "$4" free and "$3" used." }'`
  
  # Adding some HTML goodness

  html_message = "<b>System status on #{Time.now.strftime("%a %b %d")}</b>\n" + 
    system_status.gsub("HDD", "<b>HDD</b>").gsub("load averages", "<b>load averages</b>")

  # And here's the best part. I believe this is pretty straightforward way to add
  # HTML formatting to messages.

  say m.from, :html => html_message,
              :plain => "System status on #{Time.now.strftime("%a %b %d")}\n" + system_status
end

message :chat?, :body => "uptime" do |m|

  # In case I don't specify whether I'm using plain or HTML, plain is used as default
  
  say m.from, `uptime`
end

message :chat?, :body => /trim_html_down_to_plain_text/ do |m|

  # In case only HTML is specified, all tags are gsubbed from the original message
  # and resulting string is used as plaintext part of the message

  say m.from, :html => "<i>Some random text</i><br/><b>Sould be also sent as plain text</b>"
end