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Added channel limit enforcement. RFE #1000368.
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@ -101,6 +101,21 @@ conf.registerChannelValue(conf.supybot.plugins.Enforcer, 'ChanServ',
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obviously beyond our abilities to enforce, and so we would ignore all
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messages from it."""))
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# Limit stuff
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conf.registerGroup(conf.supybot.plugins.Enforcer, 'limit')
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conf.registerChannelValue(conf.supybot.plugins.Enforcer.limit, 'enforce',
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registry.Boolean(False, """Determines whether the bot will maintain the
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channel limit to be slightly above the current number of people in the
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channel, in order to make clone/drone attacks harder."""))
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conf.registerChannelValue(conf.supybot.plugins.Enforcer.limit, 'minimumExcess',
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registry.PositiveInteger(5, """Determines the minimum number of free
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spots that will be saved when limits are being enforced. This should
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always be smaller than supybot.plugins.Enforcer.limit.maximumExcess."""))
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conf.registerChannelValue(conf.supybot.plugins.Enforcer.limit, 'maximumExcess',
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registry.PositiveInteger(10, """Determines the maximum number of free spots
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that will be saved when limits are being enforced. This should always be
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larger than supybot.plugins.Enforcer.limit.minimumExcess."""))
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_chanCap = ircdb.makeChannelCapability
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class Enforcer(callbacks.Privmsg):
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"""Manages various things concerning channel security. Check out the
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@ -113,7 +128,21 @@ class Enforcer(callbacks.Privmsg):
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callbacks.Privmsg.__init__(self)
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self.topics = ircutils.IrcDict()
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def _enforceLimit(self, irc, channel):
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if self.registryValue('limit.enforce', channel):
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maximum = self.registryValue('limit.maximumExcess', channel)
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minimum = self.registryValue('limit.minimumExcess', channel)
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assert maximum > minimum
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currentUsers = len(irc.state.channels[channel].users)
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currentLimit = irc.state.channels[channel].modes.get('l', 0)
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if currentLimit - currentUsers < minimum:
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irc.queueMsg(ircmsgs.limit(channel, currentUsers + maximum))
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elif currentLimit - currentUsers > maximum:
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irc.queueMsg(ircmsgs.limit(channel, currentUsers + minimum))
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def doJoin(self, irc, msg):
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if msg.nick == irc.nick:
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return
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channel = msg.args[0]
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c = ircdb.channels.getChannel(channel)
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if c.checkBan(msg.prefix):
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@ -128,6 +157,7 @@ class Enforcer(callbacks.Privmsg):
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elif ircdb.checkCapability(msg.prefix, _chanCap(channel, 'voice')):
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if self.registryValue('autoVoice', channel):
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irc.queueMsg(ircmsgs.voice(channel, msg.nick))
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self._enforceLimit(irc, channel)
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def doTopic(self, irc, msg):
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channel = msg.args[0]
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@ -271,12 +301,16 @@ class Enforcer(callbacks.Privmsg):
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if len(c.users) == 1:
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if irc.nick not in c.ops:
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self._cycle(irc, channel)
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return
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self._enforceLimit(irc, channel)
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def doQuit(self, irc, msg):
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for (channel, c) in irc.state.channels.iteritems():
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if len(c.users) == 1:
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if irc.nick not in c.ops:
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self._cycle(irc, channel)
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continue
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self._enforceLimit(irc, channel)
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def __call__(self, irc, msg):
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channel = msg.args[0]
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