How do i program a simple IRC bot in python?

Question

I need help writing a basic IRC bot that just connects to a channel.. is anyone able to explain me this? I have managed to get it to connect to the IRC server but i am unable to join a channel and log on. The code i have thus far is:

import sockethost = 'irc.freenode.org' port = 6667 join_sock = socket.socket() join_sock.connect((host, port)) <code here>  

Any help would be greatly appreciated.

Answer 1

To connect to an IRC channel, you must send certain IRC protocol specific commands to the IRC server before you can do it.

When you connect to the server you must wait until the server has sent all data (MOTD and whatnot), then you must send the PASS command.

PASS <some_secret_password> 

What follows is the NICK command.

NICK <username> 

Then you must send the USER command.

USER <username> <hostname> <servername> :<realname> 

Both are mandatory.

Then you're likely to see the PING message from server, you must reply to the server with PONG command every time the server sends PING message to you. The server might ask for PONG between NICK and USER commands too.

PING :12345678 

Reply with the exact same text after "PING" with PONG command:

PONG :12345678 

What's after PING is unique to every server I believe so make sure you reply with the value that the server sent you.

Now you can join a channel with JOIN command:

JOIN <#channel> 

Now you can send messages to channels and users with PRIVMSG command:

PRIVMSG <#channel>|<nick> :<message> 

Quit with

QUIT :<optional_quit_msg> 

Experiment with Telnet! Start with

telnet irc.example.com 6667 

See the IRC RFC for more commands and options.

Hope this helps!

Answer 2

I used this as the MAIN IRC code:

import socket import sys  server = "server"       #settings channel = "#channel" botnick = "botname"  irc = socket.socket(socket.AF_INET, socket.SOCK_STREAM) #defines the socket print "connecting to:"+server irc.connect((server, 6667))                                                         #connects to the server irc.send("USER "+ botnick +" "+ botnick +" "+ botnick +" :This is a fun bot!\n") #user authentication irc.send("NICK "+ botnick +"\n")                            #sets nick irc.send("PRIVMSG nickserv :iNOOPE\r\n")    #auth irc.send("JOIN "+ channel +"\n")        #join the chan  while 1:    #puts it in a loop    text=irc.recv(2040)  #receive the text    print text   #print text to console     if text.find('PING') != -1:                          #check if 'PING' is found       irc.send('PONG ' + text.split() [1] + '\r\n') #returnes 'PONG' back to the server (prevents pinging out!) 

Then, you can start setting commands like: !hi <nick>

if text.find(':!hi') !=-1: #you can change !hi to whatever you want     t = text.split(':!hi') #you can change t and to :)     to = t[1].strip() #this code is for getting the first word after !hi     irc.send('PRIVMSG '+channel+' :Hello '+str(to)+'! \r\n') 

Note that all irc.send texts must start with PRIVMSG or NOTICE + channel/user and the text should start with a : !