Limnoria/plugins/BadWords.py

#!/usr/bin/env python

###
# Copyright (c) 2002, Jeremiah Fincher
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#
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# modification, are permitted provided that the following conditions are met:
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#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
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#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# POSSIBILITY OF SUCH DAMAGE.
###

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

import plugins

import re
import sets

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

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

example = utils.wrapLines("""
<jemfinch> @load BadWords
<supybot> The operation succeeded.
<jemfinch> @list BadWords
<supybot> addbadword, addbadwords, removebadword, removebadwords
<jemfinch> @addbadword darn
<supybot> The operation succeeded.
<jemfinch> @rot13 qnea
<supybot> !@#$
<jemfinch> @removebadword darn
<supybot> The operation succeeded.
<jemfinch> @rot13 qnea
<supybot> darn
<jemfinch> @addbadwords darn dang shoot
<supybot> The operation succeeded.
<jemfinch> @rot13 qnea qnat fubbg
<supybot> !@#$ !@#$ !@#$!
<jemfinch> @removebadwords darn dang shoot
<supybot> The operation succeeded.
<jemfinch> @rot13 qnea qnat fubbg
<supybot> darn dang shoot
""")

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

class BadWords(callbacks.Privmsg):
    priority = 1
    def __init__(self):
        callbacks.Privmsg.__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 addbadword(self, irc, msg, args):
        """<word>

        Adds <word> to the list of words the bot isn't to say.
        """
        if ircdb.checkCapability(msg.prefix, 'admin'):
            word = privmsgs.getArgs(args)
            self.badwords.add(word)
            self.makeRegexp()
            irc.reply(msg, conf.replySuccess)
            return
        else:
            irc.error(msg, conf.replyNoCapability % 'admin')
            return

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

        Adds all <word>s to the list of words the bot isn't to say.
        """
        if ircdb.checkCapability(msg.prefix, 'admin'):
            words = privmsgs.getArgs(args).split()
            for word in words:
                self.badwords.add(word)
            self.makeRegexp()
            irc.reply(msg, conf.replySuccess)
            return
        else:
            irc.error(msg, conf.replyNoCapability % 'admin')
            return

    def removebadword(self, irc, msg, args):
        """<word>

        Removes <word> from the list of words the bot isn't to say.
        """
        if ircdb.checkCapability(msg.prefix, 'admin'):
            word = privmsgs.getArgs(args)
            self.badwords.remove(word)
            self.makeRegexp()
            irc.reply(msg, conf.replySuccess)
            return
        else:
            irc.error(msg, conf.replyNoCapability % 'admin')
            return

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

        Removes all <word>s from the list of words the bot isn't to say.
        """
        if ircdb.checkCapability(msg.prefix, 'admin'):
            words = privmsgs.getArgs(args).split()
            for word in words:
                self.badwords.remove(word)
            self.makeRegexp()
            irc.reply(msg, conf.replySuccess)
            return
        else:
            irc.error(msg, conf.replyNoCapability % 'admin')
            return


Class = BadWords
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