twitch_chat.lua

-- Twitch chat display
local serverhost = "irc.chat.twitch.tv" -- Server to connect to
local serverport = 6667 -- Server port
local serveruser = "username" -- Server username
local serverpass = "oauth:xxxxxxxxxxxxxxxxxxxxxx" -- Twitch oauth token
local serverchan = "#channel"

print("Starting...")

function split(data, pat)
  local ret = {}
  for i in string.gmatch(data,pat) do
    table.insert(ret,i)
  end
  return ret
end

print("Starting connection...")

local event = require("event")
local net = require("internet")
local con = net.open(serverhost, serverport)

print("Testing connection...")

if(con) then
  print("Connected!")
  local line,png,linesplit,msgfrom = ""
  local running = true
  con:write("PASS " .. serverpass .. "\r\n")
  con:write("NICK " .. serveruser .. "\r\n")
  con:write("JOIN " .. serverchan .. "\r\n")
  print("Joined " .. serverchan)
  function exitProgram()
    running = false
  end
  while(running) do
    event.listen("interrupted", exitProgram)
    line = con:read()
    -- print(line)
    linesplit = split(line, "[^:]+")
    if linesplit[1] == "PING" or linesplit[1] == "PING " then
      png = split(line,"[^:]+")
      con:write("PONG :" .. png[#png] .. "\r\n")
    elseif string.find(linesplit[1], "PRIVMSG #") ~= nil then
      msgfrom = split(linesplit[1], "[^!]+")
      msgfrom = msgfrom[1]
      print(msgfrom .. ": " .. linesplit[2])
    end
  end
else
  print("Connection failed.")
end