Limnoria/plugins/Anonymous/plugin.py

###
# Copyright (c) 2005, Daniel DiPaolo
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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,
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#   * 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.
#
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# 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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###

import supybot.ircdb as ircdb
import supybot.utils as utils
from supybot.commands import *
import supybot.ircmsgs as ircmsgs
import supybot.callbacks as callbacks

class Anonymous(callbacks.Plugin):
    """This plugin allows users to act through the bot anonymously.  The 'do'
    command has the bot perform an anonymous action in a given channel, and
    the 'say' command allows other people to speak through the bot.  Since
    this can be fairly well abused, you might want to set
    supybot.plugins.Anonymous.requireCapability so only users with that
    capability can use this plugin.  For extra security, you can require that
    the user be *in* the channel they are trying to address anonymously with
    supybot.plugins.Anonymous.requirePresenceInChannel, or you can require
    that the user be registered by setting
    supybot.plugins.Anonymous.requireRegistration.
    """
    def _preCheck(self, irc, msg, channel):
        if self.registryValue('requireRegistration'):
            try:
                _ = ircdb.users.getUser(msg.prefix)
            except KeyError:
                irc.errorNotRegistered(Raise=True)
        capability = self.registryValue('requireCapability')
        if capability:
            if not ircdb.checkCapability(msg.prefix, capability):
                irc.errorNoCapability(capability, Raise=True)
        if self.registryValue('requirePresenceInChannel', channel) and \
           msg.nick not in irc.state.channels[channel].users:
            irc.error(format('You must be in %s to %q in there.',
                             channel, 'say'), Raise=True)
        c = ircdb.channels.getChannel(channel)
        if c.lobotomized:
            irc.error(format('I\'m lobotomized in %s.', channel), Raise=True)
        if not c._checkCapability(self.name()):
            irc.error('That channel has set its capabilities so as to '
                      'disallow the use of this plugin.', Raise=True)

    def say(self, irc, msg, args, channel, text):
        """<channel> <text>

        Sends <text> to <channel>.
        """
        self._preCheck(irc, msg, channel)
        self.log.info('Saying %q in %s due to %s.',
                      text, channel, msg.prefix)
        irc.queueMsg(ircmsgs.privmsg(channel, text))
        irc.noReply()
    say = wrap(say, ['inChannel', 'text'])

    def do(self, irc, msg, args, channel, text):
        """<channel> <action>

        Performs <action> in <channel>.
        """
        self._preCheck(irc, msg, channel)
        self.log.info('Performing %q in %s due to %s.',
                      text, channel, msg.prefix)
        irc.queueMsg(ircmsgs.action(channel, text))
        irc.noReply()
    do = wrap(do, ['inChannel', 'text'])

Class = Anonymous


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