Limnoria/plugins/Services.py

#!/usr/bin/env python

###
# Copyright (c) 2002, Jeremiah Fincher
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"""
Services: Handles management of nicks with NickServ, and ops with ChanServ.
"""

__revision__ = "$Id$"

import supybot.plugins as plugins

import re
import time

import supybot.conf as conf
import supybot.utils as utils
import supybot.ircmsgs as ircmsgs
import supybot.privmsgs as privmsgs
import supybot.ircutils as ircutils
import supybot.registry as registry
import supybot.schedule as schedule
import supybot.callbacks as callbacks

def configure(advanced):
    from supybot.questions import output, expect, anything, something, yn
    conf.registerPlugin('Services', True)
    nick = something('What is your registered nick?')
    password = something('What is your password for that nick?')
    chanserv = something('What is your ChanServ named?', default='ChanServ')
    nickserv = something('What is your NickServ named?', default='NickServ')
    conf.supybot.plugins.Services.nick.setValue(nick)
    conf.supybot.plugins.Services.NickServ.setValue(nickserv)
    conf.supybot.plugins.Services.NickServ.password.setValue(password)
    conf.supybot.plugins.Services.ChanServ.setValue(chanserv)

class ValidNickOrEmptyString(registry.String):
    def setValue(self, v):
        if v and not ircutils.isNick(v):
            raise registry.InvalidRegistryValue, \
                  'Value must be a valid nick or the empty string.'
        registry.String.setValue(self, v)

conf.registerPlugin('Services')
# Not really ChannelValues: but we can have values for each network.  We
# should probably document that this is possible.

class ValidNickSet(conf.ValidNicks):
    List = ircutils.IrcSet
    
conf.registerGlobalValue(conf.supybot.plugins.Services, 'nicks',
    ValidNickSet([], """Determines what nicks the bot will use with
    services."""))
conf.registerGlobalValue(conf.supybot.plugins.Services, 'NickServ',
    ValidNickOrEmptyString('', """Determines what nick the 'NickServ' service
    has."""))
conf.registerGroup(conf.supybot.plugins.Services.NickServ, 'password',
    registry.String('', """Determines what password the bot will use with
    NickServ.""", private=True))
conf.registerGlobalValue(conf.supybot.plugins.Services, 'ChanServ',
    ValidNickOrEmptyString('', """Determines what nick the 'ChanServ' service
    has."""))
conf.registerChannelValue(conf.supybot.plugins.Services.ChanServ, 'password',
    registry.String('', """Determines what password the bot will use with
    ChanServ.""", private=True))
conf.registerChannelValue(conf.supybot.plugins.Services.ChanServ, 'op',
    registry.Boolean(False, """Determines whether the bot will request to get
    opped by the ChanServ when it joins the channel."""))
conf.registerChannelValue(conf.supybot.plugins.Services.ChanServ, 'halfop',
    registry.Boolean(False, """Determines whether the bot will request to get
    half-opped by the ChanServ when it joins the channel."""))
conf.registerChannelValue(conf.supybot.plugins.Services.ChanServ, 'voice',
    registry.Boolean(False, """Determines whether the bot will request to get
    voiced by the ChanServ when it joins the channel."""))


class Services(privmsgs.CapabilityCheckingPrivmsg):
    capability = 'admin'
    def __init__(self):
        callbacks.Privmsg.__init__(self)
        for nick in self.registryValue('nicks'):
            self._registerNick(nick)
        self.reset()

    def reset(self):
        self.channels = []
        self.sentGhost = False
        self.identified = False

    def _registerNick(self, nick, password=''):
        p = self.registryValue('NickServ.password', value=False)
        p.register(nick, registry.String(password, '', private=True))

    def _getNick(self):
        return conf.supybot.nick()

##     def _getNickServ(self, network):
##         return self.registryValue('NickServ', network)

    def _getNickServPassword(self, nick):
        # This should later be nick-specific.
        assert nick in self.registryValue('nicks')
        return self.registryValue('NickServ.password.%s' % nick)

    def _setNickServPassword(self, nick, password):
        # This also should be nick-specific.
        assert nick in self.registryValue('nicks')
        self.setRegistryValue('NickServ.password.%s' % nick, password)

    def _doIdentify(self, irc, nick=None):
        if nick is None:
            nick = self._getNick()
        if nick not in self.registryValue('nicks'):
            return
        nickserv = self.registryValue('NickServ')
        password = self._getNickServPassword(nick)
        if not nickserv or not password:
            s = 'Tried to identify without a NickServ or password set.'
            self.log.warning(s)
            return
        assert irc.nick == nick, 'Identifying with not normal nick.'
        self.log.info('Sending identify (current nick: %s)' % irc.nick)
        identify = 'IDENTIFY %s' % password
        # It's important that this next statement is irc.sendMsg, not
        # irc.queueMsg.  We want this message to get through before any
        # JOIN messages also being sent on 376.
        irc.sendMsg(ircmsgs.privmsg(nickserv, identify))

    def _doGhost(self, irc, nick=None):
        if nick is None:
            nick = self._getNick()
        if nick not in self.registryValue('nicks'):
            return
        nickserv = self.registryValue('NickServ')
        password = self._getNickServPassword(nick)
        if not nickserv or not password:
            s = 'Tried to ghost without a NickServ or password set.'
            self.log.warning(s)
            return
        if self.sentGhost:
            self.log.warning('Refusing to send GHOST twice.')
        elif not password:
            self.log.warning('Not ghosting: no password set.')
            return
        else:
            self.log.info('Sending ghost (current nick: %s; ghosting: %s)',
                          irc.nick, nick)
            ghost = 'GHOST %s %s' % (nick, password)
            # Ditto about the sendMsg (see _doIdentify).
            irc.sendMsg(ircmsgs.privmsg(nickserv, ghost))
            self.sentGhost = True

    def __call__(self, irc, msg):
        callbacks.Privmsg.__call__(self, irc, msg)
        nick = self._getNick()
        if nick not in self.registryValue('nicks'):
            return
        nickserv = self.registryValue('NickServ')
        password = self._getNickServPassword(nick)
        if nick and irc.nick != nick and nickserv and password:
            if irc.afterConnect and not self.sentGhost:
                if nick in irc.state.nicksToHostmasks:
                    self._doGhost(irc)
                else:
                    irc.sendMsg(ircmsgs.nick(nick)) # 433 is handled elsewhere.

    def do001(self, irc, msg):
        # New connection, make sure sentGhost is False.
        self.sentGhost = False

    def do376(self, irc, msg):
        nick = self._getNick()
        if nick not in self.registryValue('nicks'):
            return
        nickserv = self.registryValue('NickServ')
        password = self._getNickServPassword(nick)
        if not nickserv or not password:
            s = 'NickServ or password is unset; cannot identify.'
            self.log.warning(s)
            return
        if not nick:
            self.log.warning('Cannot identify without a nick being set.  '
                             'Set supybot.plugins.Services.nick.')
            return
        if irc.nick == nick:
            self._doIdentify(irc)
        else:
            self._doGhost(irc)
    do422 = do377 = do376

    def do433(self, irc, msg):
        nick = self._getNick()
        if nick not in self.registryValue('nicks'):
            return
        if nick and irc.afterConnect:
            password = self._getNickServPassword(nick)
            if not password:
                return
            self._doGhost(irc)

    def do515(self, irc, msg):
        # Can't join this channel, it's +r (we must be identified).
        self.channels.append(msg.args[1])

    def doNick(self, irc, msg):
        nick = self._getNick()
        if msg.args[0] == irc.nick and irc.nick == nick:
            self._doIdentify(irc)
        elif ircutils.strEqual(msg.nick, nick):
            irc.sendMsg(ircmsgs.nick(nick))

    def _ghosted(self, s):
        nick = self._getNick()
        lowered = s.lower()
        return bool('killed' in lowered and (nick in s or 'ghost' in lowered))

    def doNotice(self, irc, msg):
        if irc.afterConnect:
            nickserv = self.registryValue('NickServ')
            if not nickserv or msg.nick != nickserv:
                return
            nick = self._getNick()
            self.log.debug('Notice received from NickServ: %r.', msg)
            s = msg.args[1].lower()
            if 'incorrect' in s or 'denied' in s:
                log = 'Received "Password Incorrect" from NickServ.  ' \
                      'Resetting password to empty.'
                self.log.warning(log)
                self.sentGhost = False
                self._setNickServPassword(nick, '')
            elif self._ghosted(s):
                self.log.info('Received "GHOST succeeded" from NickServ.')
                self.sentGhost = False
                self.identified = False
                irc.queueMsg(ircmsgs.nick(nick))
            elif 'currently' in s and 'isn\'t' in s or 'is not' in s:
                # The nick isn't online, let's change our nick to it.
                self.sentGhost = False
                irc.queueMsg(ircmsgs.nick(nick))
            elif ('registered' in s or 'protected' in s) and \
               ('not' not in s and 'isn\'t' not in s):
                self.log.info('Received "Registered Nick" from NickServ.')
                if nick == irc.nick:
                    self._doIdentify(irc)
            elif '/msg' in s and 'identify' in s and 'password' in s:
                # Usage info for identify command; ignore.
                self.log.debug('Got usage info for identify command.')
            elif 'now recognized' in s:
                self.log.info('Received "Password accepted" from NickServ.')
                self.identified = True
                for channel in irc.state.channels.keys():
                    self.checkPrivileges(irc, channel)
                if self.channels:
                    irc.queueMsg(ircmsgs.joins(self.channels))
            else:
                self.log.debug('Unexpected notice from NickServ: %r.', s)

    def checkPrivileges(self, irc, channel):
        chanserv = self.registryValue('ChanServ')
        if chanserv and self.registryValue('ChanServ.op', channel):
            if irc.nick not in irc.state.channels[channel].ops:
                self.log.info('Requesting op from %s in %s.', chanserv, channel)
                irc.sendMsg(ircmsgs.privmsg(chanserv, 'op %s' % channel))
        if chanserv and self.registryValue('ChanServ.halfop', channel):
            if irc.nick not in irc.state.channels[channel].halfops:
                self.log.info('Requesting halfop from %s in %s.',
                              chanserv, channel)
                irc.sendMsg(ircmsgs.privmsg(chanserv, 'halfop %s' % channel))
        if chanserv and self.registryValue('ChanServ.voice', channel):
            if irc.nick not in irc.state.channels[channel].voices:
                self.log.info('Requesting voice from %s in %s.',
                              chanserv, channel)
                irc.sendMsg(ircmsgs.privmsg(chanserv, 'voice %s' % channel))

    def doMode(self, irc, msg):
        chanserv = self.registryValue('ChanServ')
        if msg.nick == chanserv:
            channel = msg.args[0]
            if len(msg.args) == 3:
                if msg.args[2] == irc.nick:
                    mode = msg.args[1]
                    info = self.log.info
                    if mode == '+o':
                        info('Received op from ChanServ in %s.', channel)
                    elif mode == '+h':
                        info('Received halfop from ChanServ in %s.', channel)
                    elif mode == '+v':
                        info('Received voice from ChanServ in %s.', channel)

    def do366(self, irc, msg): # End of /NAMES list; finished joining a channel
        if self.identified:
            channel = msg.args[1] # nick is msg.args[0].
            self.checkPrivileges(irc, channel)

    def getops(self, irc, msg, args):
        """[<channel>]

        Attempts to get ops from ChanServ in <channel>.  If no channel is
        given, the current channel is assumed.
        """
        channel = privmsgs.getChannel(msg, args)
        try:
            if irc.nick in irc.state.channels[channel].ops:
                irc.error('I\'ve already got ops in %s' % channel)
            else:
                chanserv = self.registryValue('ChanServ')
                if chanserv:
                    irc.sendMsg(ircmsgs.privmsg(chanserv, 'op %s' % channel))
                else:
                    irc.error('You must set supybot.plugins.Services.ChanServ '
                              'before I\'m able to do get ops.')
        except KeyError:
            irc.error('I\'m not in %s.' % channel)

    def identify(self, irc, msg, args):
        """takes no arguments

        Identifies with NickServ.
        """
        if self.registryValue('NickServ'):
            if irc.nick in self.registryValue('nicks'):
                self._doIdentify(irc, irc.nick)
                irc.replySuccess()
        else:
            irc.error('You must set supybot.plugins.Services.NickServ before '
                      'I\'m able to do identify.')

    def ghost(self, irc, msg, args):
        """[<nick>]

        Ghosts the bot's given nick and takes it.  If no nick is given,
        ghosts the bot's configured nick and takes it.
        """
        if self.registryValue('NickServ'):
            nick = privmsgs.getArgs(args, required=0, optional=1)
            if not nick:
                nick = self._getNick()
            if nick == irc.nick:
                irc.error('I cowardly refuse to ghost myself.')
            else:
                self._doGhost(irc, nick=nick)
                irc.replySuccess()
        else:
            irc.error('You must set supybot.plugins.Services.NickServ before '
                      'I\'m able to ghost a nick.')

    def password(self, irc, msg, args):
        """<nick> [<password>]

        Sets the NickServ password for <nick> to <password>.  If <password> is
        not given, removes <nick> from the configured nicks.
        """
        if ircutils.isChannel(msg.args[0]):
            irc.errorRequiresPrivacy(Raise=True)
        (nick, password) = privmsgs.getArgs(args, optional=1)
        if not password:
            try:
                self.registryValue('nicks').remove(nick)
                irc.replySuccess()
            except KeyError:
                irc.error('That nick was not configured with a password.')
                return
        else:
            self.registryValue('nicks').add(nick)
            self._registerNick(nick, password)
            irc.replySuccess()

    def nicks(self, irc, msg, args):
        """takes no arguments

        Returns the nicks that this plugin is configured to identify and ghost
        with."""
        L = list(self.registryValue('nicks'))
        if L:
            utils.sortBy(ircutils.toLower, L)
            irc.reply(utils.commaAndify(L))
        else:
            irc.reply('I\'m not currently configured for any nicks.')


Class = Services

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