Limnoria/plugins/BadWords.py

#!/usr/bin/env python

###
# Copyright (c) 2002, Jeremiah Fincher
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###

"""
Filters bad words on outgoing messages from the bot, so the bot can't be made
to say bad words.
"""

__revision__ = "$Id$"

import plugins

import re
import sets

import conf
import utils
import ircdb
import ircmsgs
import privmsgs
import callbacks

def configure(advanced):
    from questions import expect, anything, something, yn
    conf.registerPlugin('BadWords', True)
    while yn('Would you like to add some bad words?'):
        words = anything('What words? (separate individual words by spaces)')
        onStart.append('badwords add %s' % words)

nastyChars = '!@#$' * 256
def subber(m):
    return nastyChars[:len(m.group(1))]

class BadWords(privmsgs.CapabilityCheckingPrivmsg):
    priority = 1
    capability = 'admin'
    def __init__(self):
        privmsgs.CapabilityCheckingPrivmsg.__init__(self)
        self._badwords = sets.Set()

    def outFilter(self, irc, msg):
        if hasattr(self, 'regexp') and msg.command == 'PRIVMSG':
            s = msg.args[1]
            s = self.regexp.sub(subber, s)
            return ircmsgs.privmsg(msg.args[0], s)
        else:
            return msg

    def makeRegexp(self):
        self.regexp = re.compile(r'\b('+'|'.join(self._badwords)+r')\b', re.I)

    def add(self, irc, msg, args):
        """<word> [<word> ...]

        Adds all <word>s to the list of words the bot isn't to say.
        """
        words = privmsgs.getArgs(args).split()
        for word in words:
            self._badwords.add(word)
        self.makeRegexp()
        irc.replySuccess()

    def remove(self, irc, msg, args):
        """<word> [<word> ...]

        Removes all <word>s from the list of words the bot isn't to say.
        """
        words = privmsgs.getArgs(args).split()
        for word in words:
            self._badwords.discard(word)
        self.makeRegexp()
        irc.replySuccess()


Class = BadWords


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