#! /usr/bin/env python

from socket import *

#################################################

HOST = "irc.freenode.net"                       # Needed for the initial socket connection
PORT = 6667                                     # This is the normal port used for IRC connections
USERNAME = "Bubblebot"                          # Nick of the bot
HOSTNAME = "NULL"                               # This is not needed for a client but is there for compliance
SERVERNAME = "NULL"                             # This is not needed for a client but is there for compliance
REALNAME = "Bubble bot"                         # Realname to pass to the IRC server
PASS = "bubblebot"                              # Password for authentication to the server

irc_socket = socket(AF_INET, SOCK_STREAM)       # This creates the socket used for connection
irc_socket.connect((HOST, PORT))                # This makes the actual connection

def send(data):                                 # This function is defined for sending a message to the server
    irc_socket.send(data)

def receive(buffer_size = 1024):                # This function is defined for receiving messages from the server
    irc_socket.recv(buffer_size)

#################################################


# The correct order for registering a connection with an IRC server according to RFC 1459 is as follows:
# 1) Pass message
# 2) Nick message
# 3) User message

# Pass message
# Command:      PASS
# Parameters:   <password>
send("PASS %s" % PASS)

# Nick message
# Command:      NICK
# Parameters:   <nickname> [<hopcount>]
send("NICK %s" % NICK)

# User message
# Command:      USER
# Paremeters    <username> [<hostname>] [<servername>] <realname>
send("USER %s %s %s %s" % (USERNAME, HOSTNAME, SERVERNAME, REALNAME))