adminsys/welcomebot
adminsys/welcomebot
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welcomebot/bot.py

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Python
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#########################################################################
################# Abundant notes are appreciated here! ##################
#########################################################################
# Import some necessary libraries.
import socket
import time
import csv
import Queue
import random
from threading import Thread
from re import search
# Some basic variables used to configure the bot.
server = "irc.freenode.net"
channel = "#openhatch"
botnick = 'WelcomeBot'
channel_greeters = ['shauna', 'paulproteus', 'marktraceur']
wait_time = 60 # amount of time after joining before bot replies to someone
change_wait = botnick + " --wait-time "
#################### Classes ####################
# Newcomer class that is created when someone joins the room.
class NewComer(object):
def __init__(self, nick):
self.nick = nick
self.born = time.time()
self.status = 0
def update_status(self):
self.status = 1
def around_for(self):
return int(time.time() - self.born)
#################### Functions! ####################
# Joins specified channel.
def join_channel(chan):
ircsock.send("JOIN {} \n".format(chan))
# Reads the messages from the server and adds them to the Queue and prints
# them to the console. This function will be run in a thread, see below.
def msg_handler():
while True:
new_msg = ircsock.recv(2048) # receive data from the server
new_msg = new_msg.strip('\n\r') # removing any unnecessary linebreaks
q.put(new_msg) # put in queue for main loop to read
print(new_msg)
# Responds to server Pings.
def pong():
ircsock.send("PONG :pingis\n")
# This function responds to a user that inputs "Hello Mybot".
def bot_hello(greeting):
ircsock.send("PRIVMSG {0} :{1} {2}\n".format(channel, greeting, actor))
# This function explains what the bot is when queried.
def bot_help():
ircsock.send("PRIVMSG {} :I'm a bot! I'm from here <https://github"
".com/shaunagm/oh-irc-bot>. You can change my behavior by "
"submitting a pull request or by talking to shauna"
".\n".format(channel))
# Returns a grammatically correct string of the channel_greeters.
def greeter_string(conjunction):
greeters = ""
if len(channel_greeters) > 2:
for name in channel_greeters[:-1]:
greeters += "{}, ".format(name)
greeters += "{0} {1}".format(conjunction, channel_greeters[-1])
elif len(channel_greeters) == 2:
greeters = "{0} {1} {2}".format(channel_greeters[0], conjunction,
channel_greeters[1])
else:
greeters = channel_greeters[0]
return greeters
# This welcomes the "person" passed to it.
def welcome(newcomer):
ircsock.send("PRIVMSG {0} :Welcome {1}! The channel is pretty quiet "
"right now, so I though I'd say hello, and ping some people "
",like {2}, that you're here. If no one responds for a "
"while, try emailing us at hello@openhatch.org or just try "
"coming back later. FYI, you're now on my list of known "
"nicknames, so I won't bother you again."
"\n".format(channel, newcomer, greeter_string("and")))
# Adds the current NewComer's nick to nicks.csv and known_nicks.
def add_known_nick(new_known_nick):
new_known_nick = new_known_nick.replace("_", "")
known_nicks.append([new_known_nick])
with open('nicks.csv', 'a') as csvfile:
nickwriter = csv.writer(csvfile, delimiter=',', quotechar='|',
quoting=csv.QUOTE_MINIMAL)
nickwriter.writerow([new_known_nick])
# "I NEED NOTES!!!!", said the function.
def get_welcome_regex(string_array):
#make regex case-insenstive
pattern = r'(?i)'
for s in string_array:
pattern += r'(?:[ :]'+s+r'(?:[ \.!\?,\)]|$))|'
#delete trailing '|'
pattern = pattern[:-1]
return pattern
# This function is used to change the wait time from the channel.
# It confirms that the attempt is allowed and then returns the requested value.
# If the attempt is not allowed, a message is sent to help
def wait_time_change():
for admin in channel_greeters:
if actor == admin:
finder = search(r'\d\d*', search(r'--wait-time \d\d*', ircmsg)
.group())
ircsock.send("PRIVMSG {0} :{1} the wait time is changing to {2} "
"seconds.\n".format(channel, actor, finder.group()))
return int(finder.group())
ircsock.send("PRIVMSG {0} :{1} you are not authorized to make that "
"change. Please contact one of the channel greeters, like {2}, for "
"assistance.\n".format(channel, actor, greeter_string("or")))
#################### Startup ####################
# Creates a socket that will be used to send and receive messages,
# then connects the socket to an IRC server and joins the channel.
ircsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ircsock.connect((server, 6667)) # Here we connect to server using port 6667.
ircsock.send("USER {0} {0} {0} :This is http://openhatch.org/'s greeter bot"
".\n".format(botnick)) # bot authentication
ircsock.send("NICK {}\n".format(botnick)) # Assign the nick to the bot.
join_channel(channel)
# Creates a list of known nicks from nicks.csv.
# The list is checked to ensure that people are only greeted once.
# NewComers will be added to the list and the csv.
known_nicks = []
with open('nicks.csv', 'rb') as csv_file:
csv_file_data = csv.reader(csv_file, delimiter=',', quotechar='|')
for row in csv_file_data:
known_nicks.append(row)
# Creates a Queue that will hold the incoming messages.
q = Queue.Queue()
# Creates a separate thread that will listen on the server and add any
# messages to the Queue. The thread is created to run target which equals
# the msg_handler function from above.
t = Thread(target=msg_handler)
t.daemon = True
t.start()
# This is the array of NewComer objects that people who join are added to.
newcomers = []
hello_list = [r'hello', r'hi', r'hey', r'yo', r'sup']
help_list = [r'help', r'info', r'faq', r'explain yourself']
hello_pattern = get_welcome_regex(hello_list)
help_pattern = get_welcome_regex(help_list)
#################### The Workhorse ####################
# This is the main loop that monitors the channel and sends and receives the
# messages, either in the below code or by calling a function. This is the
# brain of this code.
while 1: # loop forever
for i in newcomers:
if i.status == 0 and i.around_for() > wait_time:
welcome(i.nick)
i.update_status()
add_known_nick(i.nick)
newcomers.remove(i)
# If the queue is not empty...
if q.empty() == 0:
# get the next msg in the queue
ircmsg = q.get()
# and get the nick of the msg sender
actor = ircmsg.split(":")[1].split("!")[0]
##### Welcome functions #####
# If someone has spoken into the channel...
if ircmsg.find("PRIVMSG " + channel) != -1:
for i in newcomers:
if actor != i.nick: # and is not the new NewComer
i.update_status() # set the status to 1
add_known_nick(i.nick)
newcomers.remove(i)
## Else: Do we want to do something extra if the person who
# joined the chat says something with no response?
# If someone joins #channel...
if ircmsg.find("JOIN " + channel) != -1:
if actor != botnick: # and it is not the bot
if [actor.replace("_", "")] not in known_nicks:
if actor not in (i.nick for i in newcomers):
newcomers.append(NewComer(actor))
# If someone parts or quits the #channel...
if ircmsg.find("PART " + channel) != -1 or ircmsg.find("QUIT") != -1:
for i in newcomers: # and that person is on the newlist
if actor == i.nick:
newcomers.remove(i) # remove them from the list
##### Unwelcome functions #####
# If someone talks to (or refers to) the bot.
if ircmsg.find(botnick) != -1 and ircmsg.find("PRIVMSG") != -1:
matchHello = search(hello_pattern, ircmsg)
matchHelp = search(help_pattern, ircmsg)
if matchHello:
bot_hello(random.choice(hello_list))
if matchHelp:
bot_help()
# If someone tries to change the wait time...
if ircmsg.find(change_wait) != -1:
wait_time = wait_time_change() # call this to check and change it
# If the server pings us then we've got to respond!
if ircmsg.find("PING :") != -1:
pong()
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