dr.botzo, the IRC bot with Django integration.
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"""
Markov - Chatterbot via Markov chains for IRC
Copyright (C) 2010 Brian S. Stephan
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
from datetime import datetime
import random
import re
import thread
import time
from dateutil.relativedelta import relativedelta
from markov.models import MarkovContext, MarkovState, MarkovTarget
from markov.views import _generate_line, _learn_line
from extlib import irclib
from Module import Module
class Markov(Module):
"""Create a chatterbot very similar to a MegaHAL, but simpler and
implemented in pure Python. Proof of concept code from Ape.
Ape wrote: based on this:
http://uswaretech.com/blog/2009/06/pseudo-random-text-markov-chains-python/
and this:
http://code.activestate.com/recipes/194364-the-markov-chain-algorithm/
"""
def __init__(self, irc, config):
"""Create the Markov chainer, and learn text from a file if
available.
"""
# set up regexes, for replying to specific stuff
learnpattern = '^!markov\s+learn\s+(.*)$'
replypattern = '^!markov\s+reply(\s+min=(\d+))?(\s+max=(\d+))?(\s+(.*)$|$)'
self.learnre = re.compile(learnpattern)
self.replyre = re.compile(replypattern)
self.shut_up = False
self.lines_seen = []
Module.__init__(self, irc, config)
self.next_shut_up_check = 0
self.next_chatter_check = 0
thread.start_new_thread(self.thread_do, ())
# TODO: bring this back somehow
#irc.xmlrpc_register_function(self._generate_line,
# "markov_generate_line")
def register_handlers(self):
"""Handle pubmsg/privmsg, to learn and/or reply to IRC events."""
self.irc.server.add_global_handler('pubmsg', self.on_pub_or_privmsg,
self.priority())
self.irc.server.add_global_handler('privmsg', self.on_pub_or_privmsg,
self.priority())
self.irc.server.add_global_handler('pubmsg',
self.learn_from_irc_event)
self.irc.server.add_global_handler('privmsg',
self.learn_from_irc_event)
def unregister_handlers(self):
self.irc.server.remove_global_handler('pubmsg',
self.on_pub_or_privmsg)
self.irc.server.remove_global_handler('privmsg',
self.on_pub_or_privmsg)
self.irc.server.remove_global_handler('pubmsg',
self.learn_from_irc_event)
self.irc.server.remove_global_handler('privmsg',
self.learn_from_irc_event)
def learn_from_irc_event(self, connection, event):
"""Learn from IRC events."""
what = ''.join(event.arguments()[0])
my_nick = connection.get_nickname()
what = re.sub('^' + my_nick + '[:,]\s+', '', what)
target = event.target()
nick = irclib.nm_to_n(event.source())
if not irclib.is_channel(target):
target = nick
self.lines_seen.append((nick, datetime.now()))
# don't learn from commands
if self.learnre.search(what) or self.replyre.search(what):
return
if not event._recursing:
context = _get_or_create_target_context(target)
_learn_line(what, context)
def do(self, connection, event, nick, userhost, what, admin_unlocked):
"""Handle commands and inputs."""
target = event.target()
if self.learnre.search(what):
return self.irc.reply(event, self.markov_learn(event,
nick, userhost, what, admin_unlocked))
elif self.replyre.search(what) and not self.shut_up:
return self.irc.reply(event, self.markov_reply(event,
nick, userhost, what, admin_unlocked))
if not self.shut_up:
# not a command, so see if i'm being mentioned
if re.search(connection.get_nickname(), what, re.IGNORECASE) is not None:
context = _get_or_create_target_context(target)
addressed_pattern = '^' + connection.get_nickname() + '[:,]\s+(.*)'
addressed_re = re.compile(addressed_pattern)
if addressed_re.match(what):
# i was addressed directly, so respond, addressing
# the speaker
topics = [x for x in addressed_re.match(what).group(1).split(' ') if len(x) >= 3]
self.lines_seen.append(('.self.said.', datetime.now()))
return self.irc.reply(event, u"{0:s}: {1:s}".format(nick,
u" ".join(_generate_line(context, topics=topics, max_sentences=1))))
else:
# i wasn't addressed directly, so just respond
topics = [x for x in what.split(' ') if len(x) >= 3]
self.lines_seen.append(('.self.said.', datetime.now()))
return self.irc.reply(event, u"{0:s}".format(u" ".join(_generate_line(context,
topics=topics,
max_sentences=1))))
def markov_learn(self, event, nick, userhost, what, admin_unlocked):
"""Learn one line, as provided to the command."""
target = event.target()
if not irclib.is_channel(target):
target = nick
match = self.learnre.search(what)
if match:
line = match.group(1)
context = _get_or_create_target_context(target)
_learn_line(line, context)
# return what was learned, for weird chaining purposes
return line
def markov_reply(self, event, nick, userhost, what, admin_unlocked):
"""Generate a reply to one line, without learning it."""
target = event.target()
if not irclib.is_channel(target):
target = nick
match = self.replyre.search(what)
if match:
min_size = 15
max_size = 30
context = _get_or_create_target_context(target)
if match.group(2):
min_size = int(match.group(2))
if match.group(4):
max_size = int(match.group(4))
if match.group(5) != '':
line = match.group(6)
topics = [x for x in line.split(' ') if len(x) >= 3]
self.lines_seen.append(('.self.said.', datetime.now()))
return u" ".join(_generate_line(context, topics=topics,
min_words=min_size, max_words=max_size,
max_sentences=1))
else:
self.lines_seen.append(('.self.said.', datetime.now()))
return u" ".join(_generate_line(context, min_words=min_size,
max_words=max_size,
max_sentences=1))
def thread_do(self):
"""Do various things."""
while not self.is_shutdown:
self._do_shut_up_checks()
self._do_random_chatter_check()
time.sleep(1)
def _do_random_chatter_check(self):
"""Randomly say something to a channel."""
# TODO: make this do stuff again
return
def _do_shut_up_checks(self):
"""Check to see if we've been talking too much, and shut up if so."""
if self.next_shut_up_check < time.time():
self.shut_up = False
self.next_shut_up_check = time.time() + 30
last_30_sec_lines = []
for (nick, then) in self.lines_seen:
rdelta = relativedelta(datetime.now(), then)
if (rdelta.years == 0 and rdelta.months == 0 and rdelta.days == 0 and
rdelta.hours == 0 and rdelta.minutes == 0 and rdelta.seconds <= 29):
last_30_sec_lines.append((nick, then))
if len(last_30_sec_lines) >= 8:
lines_i_said = len(filter(lambda (a, b): a == '.self.said.', last_30_sec_lines))
if lines_i_said >= 8:
self.shut_up = True
targets = self._get_chatter_targets()
for t in targets:
self.sendmsg(t['target'],
'shutting up for 30 seconds due to last 30 seconds of activity')
def _get_or_create_target_context(target_name):
"""Return the context for a provided nick/channel, creating missing ones."""
# find the stuff, or create it
try:
target = MarkovTarget.objects.get(name=target_name)
return target.context
except MarkovContext.DoesNotExist:
# make a context
context = MarkovContext()
context.name = target_name
context.save()
target.context = context
target.save()
return target.context
except MarkovTarget.DoesNotExist:
# first we need to make a context for this
context = MarkovContext()
context.name = target_name
context.save()
target = MarkovTarget()
target.name = target_name
target.context = context
target.save()
return target.context
# vi:tabstop=4:expandtab:autoindent