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require 'socket'
require 'timeout'
module Dinobot
class Bot
attr_accessor :trigger
attr_reader :server, :port, :nick, :pass, :modules, :channels
def initialize(server, port, nick, pass=nil, &block)
@server = server
@port = port
@nick = nick
@pass = pass
@trigger = '!'
@socket = nil
@modules = Hash.new
@channels = Array.new
instance_eval(&block) if block_given?
end
def connect
log :info, "Connecting to #{@server}:#{@port}."
@socket = TCPSocket.new(@server, @port)
out "PASS #{@pass}" if @pass
out "NICK #{@nick}"
out "USER #{@nick} 0 * :#{@nick}"
@channels.each do |channel|
join channel
end
end
def connected?
!(@socket.nil? || @socket.closed?)
end
def run
connect unless connected?
while str = @socket.gets.chomp
log :in, str.inspect
Thread.new do
begin
Timeout.timeout(30) do
parse_line(str)
end
rescue => e
log :error, "Error parsing line. (#{e})"
log :indent, *e.backtrace
end
end
end
@socket.close
log :info, 'Disconnected.'
end
def out(str)
return unless connected?
log :out, str.inspect
@socket.puts str
end
def say(channel, message)
out "PRIVMSG #{channel} :#{message}"
end
def join(channel)
@channels << channel unless @channels.include?(channel)
out "JOIN #{channel}"
end
def part(channel)
@channels.delete(channel)
out "PART #{channel}"
end
def load_module(mod)
mod = mod.downcase.intern
log :info, "Loading module: #{mod}"
begin
load "#{mod}.rb"
m = Dinobot.const_get(Dinobot.constants.find { |x| x.downcase == mod })
@modules[mod] = m.new(self)
log :info, "Loaded module: #{mod} (#{m})"
rescue LoadError, StandardError => e
log :error, "Failed to load module: #{mod} (#{e})"
end
end
def unload_module(mod)
mod = mod.downcase.intern
log :info, "Unloading module: #{mod}"
begin
raise 'module not loaded' unless @modules.has_key?(mod)
@modules.delete(mod)
m = Dinobot.send(:remove_const,
Dinobot.constants.find { |x| x.downcase == mod })
log :info, "Unloaded module: #{mod} (#{m})"
rescue => e
log :error, "Failed to unload module: #{mod} (#{e})"
end
end
def log(type, *lines)
str = lines.join("\n")
case type
when :in
prefix = "\e[32m<<\e[0m "
when :out
prefix = "\e[36m>>\e[0m "
when :error
prefix = "\e[31m!!\e[0m "
when :info
prefix = "\e[33m==\e[0m "
when :indent
prefix = ' '
else
raise "unknown type specified -- #{type}"
end
puts str.gsub(/^/, prefix)
end
private
def parse_line(str)
out str.sub('PING', 'PONG') if str =~ /^PING /
if str =~ /(\S+) PRIVMSG (\S+) :(.*)/
user, channel, message = str.scan(/(\S+) PRIVMSG (\S+) :(.*)/).first
return unless message.sub!(/^#{Regexp.escape(@trigger)}/, '')
methods = exec_command(user, channel, message)
ensure_valid_methods(methods)
run_methods(methods)
end
end
def exec_command(user, channel, command, prev=nil)
command, remainder = command.split(' | ', 2)
mod = command.scan(/\A\S+/).first.downcase
return unless @modules.keys.map { |x| x.to_s }.include?(mod)
mod = mod.intern
if prev.nil?
methods = @modules[mod].call(user, channel, command)
else
ensure_valid_methods(prev)
methods = []
prev.each do |p|
if p.first == :say
m = @modules[mod].call(user, p[1], "#{command} #{p[2]}")
ensure_valid_methods(m)
methods.concat(m)
else
methods << p
end
end
end
remainder ? exec_command(user, channel, remainder, methods) : methods
end
def run_methods(methods)
methods.each do |m|
log :info, "Executing method: #{m.inspect}"
send(*m)
end
end
def ensure_valid_methods(methods)
raise "method list not array -- #{methods}" unless methods.is_a?(Array)
methods.each do |m|
raise "method not array -- #{m}" unless m.is_a?(Array)
case m.first
when :say
raise "wrong number of arguments -- #{m}" unless m.length == 3
when :join, :part
raise "wrong number of arguments -- #{m}" unless m.length == 2
else
raise "unknown method name -- #{m}"
end
end
end
end
end
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