Created
January 28, 2010 17:49
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#!/usr/bin/env ruby | |
CHANNEL = "#shrug_bots" | |
SERVER = 'irc.freenode.net' | |
PORT = 6667 | |
NICK = 'notify' | |
PASS = '' | |
require "socket" | |
# Don't allow use of "tainted" data by potentially dangerous operations | |
$SAFE=1 | |
# The irc class, which talks to the server and holds the main event loop | |
class IRC | |
def initialize(server, port, nick, channel) | |
@server = server | |
@port = port | |
@nick = nick | |
@channel = channel | |
@@instance = self | |
end | |
def self.send_message(s) | |
@@instance.send "PRIVMSG #{CHANNEL} :#{s}" | |
end | |
def send(s) | |
# Send a message to the irc server and print it to the screen | |
puts "--> #{s}" | |
@irc.send "#{s}\n", 0 | |
end | |
def connect | |
# Connect to the IRC server | |
@irc = TCPSocket.open(@server, @port) | |
send "PASS #{PASS}" if PASS | |
send "USER bot bot bot :bot bot" | |
send "NICK #{@nick}" | |
end | |
def evaluate(s) | |
# Make sure we have a valid expression (for security reasons), and | |
# evaluate it if we do, otherwise return an error message | |
if s =~ /^[-+*\/\d\s\eE.()]*$/ then | |
begin | |
s.untaint | |
return eval(s).to_s | |
rescue Exception => detail | |
puts detail.message() | |
end | |
end | |
return "Error" | |
end | |
def handle_server_input(s) | |
# This isn't at all efficient, but it shows what we can do with Ruby | |
# (Dave Thomas calls this construct "a multiway if on steroids") | |
case s.strip | |
when /^PING :(.+)$/i | |
puts "[ Server ping ]" | |
send "PONG :#{$1}" | |
when /^:(.+?)!(.+?)@(.+?)\sPRIVMSG\s.+\s:[\001]PING (.+)[\001]$/i | |
puts "[ CTCP PING from #{$1}!#{$2}@#{$3} ]" | |
send "NOTICE #{$1} :\001PING #{$4}\001" | |
when /^:(.+?)!(.+?)@(.+?)\sPRIVMSG\s.+\s:[\001]VERSION[\001]$/i | |
puts "[ CTCP VERSION from #{$1}!#{$2}@#{$3} ]" | |
send "NOTICE #{$1} :\001VERSION Ruby-irc v0.042\001" | |
when /^:(.+?)!(.+?)@(.+?)\sPRIVMSG\s(.+)\s:EVAL (.+)$/i | |
puts "[ EVAL #{$5} from #{$1}!#{$2}@#{$3} ]" | |
send "PRIVMSG #{(($4==@nick)?$1:$4)} :#{evaluate($5)}" | |
when /376/i | |
send "JOIN #{@channel}" | |
else | |
puts s | |
end | |
end | |
def main_loop | |
# Just keep on truckin' until we disconnect | |
while true | |
ready = select([@irc], nil, nil, nil) | |
if ready | |
return if @irc.eof | |
s = @irc.gets | |
handle_server_input(s) | |
end | |
end | |
end | |
end | |
Thread.new do | |
irc = IRC.new(SERVER, PORT, NICK, CHANNEL) | |
while true | |
irc.connect | |
begin | |
irc.main_loop | |
rescue Interrupt | |
rescue Exception => detail | |
puts detail.message() | |
print detail.backtrace.join("\n") | |
retry | |
end | |
sleep 2 | |
end | |
end | |
require 'rubygems' | |
require 'sinatra' | |
get '/irc' do | |
IRC.send_message params["m"] | |
end |
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