mirror of
https://github.com/Mikaela/Limnoria.git
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308 lines
12 KiB
Python
308 lines
12 KiB
Python
###
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# Copyright (c) 2002-2004, Jeremiah Fincher
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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import re
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import supybot.conf as conf
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import supybot.utils as utils
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from supybot.commands import *
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import supybot.ircutils as ircutils
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import supybot.registry as registry
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import supybot.callbacks as callbacks
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# Copied from the old privmsgs.py.
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def getChannel(msg, args=()):
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"""Returns the channel the msg came over or the channel given in args.
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If the channel was given in args, args is modified (the channel is
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removed).
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"""
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if args and ircutils.isChannel(args[0]):
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if conf.supybot.reply.requireChannelCommandsToBeSentInChannel():
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if args[0] != msg.args[0]:
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s = 'Channel commands must be sent in the channel to which ' \
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'they apply; if this is not the behavior you desire, ' \
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'ask the bot\'s administrator to change the registry ' \
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'variable ' \
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'supybot.reply.requireChannelCommandsToBeSentInChannel ' \
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'to False.'
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raise callbacks.Error, s
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return args.pop(0)
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elif ircutils.isChannel(msg.args[0]):
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return msg.args[0]
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else:
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raise callbacks.Error, 'Command must be sent in a channel or ' \
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'include a channel in its arguments.'
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def getArgs(args, required=1, optional=0):
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if len(args) < required:
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raise callbacks.ArgumentError
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if len(args) < required + optional:
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ret = list(args) + ([''] * (required + optional - len(args)))
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elif len(args) >= required + optional:
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ret = list(args[:required + optional - 1])
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ret.append(' '.join(args[required + optional - 1:]))
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if len(ret) == 1:
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return ret[0]
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else:
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return ret
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class AliasError(Exception):
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pass
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class RecursiveAlias(AliasError):
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pass
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dollarRe = re.compile(r'\$(\d+)')
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def findBiggestDollar(alias):
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dollars = dollarRe.findall(alias)
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dollars = map(int, dollars)
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dollars.sort()
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if dollars:
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return dollars[-1]
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else:
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return 0
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atRe = re.compile(r'@(\d+)')
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def findBiggestAt(alias):
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ats = atRe.findall(alias)
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ats = map(int, ats)
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ats.sort()
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if ats:
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return ats[-1]
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else:
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return 0
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def makeNewAlias(name, alias):
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original = alias
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biggestDollar = findBiggestDollar(original)
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biggestAt = findBiggestAt(original)
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wildcard = '$*' in original
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if biggestAt and wildcard:
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raise AliasError, 'Can\'t mix $* and optional args (@1, etc.)'
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if original.count('$*') > 1:
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raise AliasError, 'There can be only one $* in an alias.'
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testTokens = callbacks.tokenize(original)
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if testTokens and isinstance(testTokens[0], list):
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raise AliasError, 'Commands may not be the result of nesting.'
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def f(self, irc, msg, args):
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alias = original.replace('$nick', msg.nick)
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if '$channel' in original:
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channel = getChannel(msg, args)
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alias = alias.replace('$channel', channel)
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tokens = callbacks.tokenize(alias)
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if not wildcard and biggestDollar or biggestAt:
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args = getArgs(args, required=biggestDollar, optional=biggestAt)
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# Gotta have a mutable sequence (for replace).
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if biggestDollar + biggestAt == 1: # We got a string, no tuple.
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args = [args]
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def regexpReplace(m):
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idx = int(m.group(1))
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return args[idx-1]
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def replace(tokens, replacer):
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for (i, token) in enumerate(tokens):
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if isinstance(token, list):
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replace(token, replacer)
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else:
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tokens[i] = replacer(token)
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replace(tokens, lambda s: dollarRe.sub(regexpReplace, s))
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if biggestAt:
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assert not wildcard
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args = args[biggestDollar:]
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replace(tokens, lambda s: atRe.sub(regexpReplace, s))
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if wildcard:
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assert not biggestAt
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# Gotta remove the things that have already been subbed in.
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i = biggestDollar
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while i:
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args.pop(0)
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i -= 1
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def everythingReplace(tokens):
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for (i, token) in enumerate(tokens):
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if isinstance(token, list):
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if everythingReplace(token):
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return
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if token == '$*':
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tokens[i:i+1] = args
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return True
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elif '$*' in token:
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tokens[i] = token.replace('$*', ' '.join(args))
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return True
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return False
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everythingReplace(tokens)
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self.Proxy(irc, msg, tokens)
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doc =format('<an alias, %n>\n\nAlias for %q.',
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(biggestDollar, 'argument'), alias)
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f = utils.changeFunctionName(f, name, doc)
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return f
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class Alias(callbacks.Privmsg):
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def __init__(self, irc):
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self.__parent = super(Alias, self)
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self.__parent.__init__(irc)
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# Schema: {alias: [command, locked]}
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self.aliases = {}
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# XXX This should go. aliases should be a space separate list, etc.
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group = conf.supybot.plugins.Alias.aliases
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for (name, alias) in registry._cache.iteritems():
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name = name.lower()
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if name.startswith('supybot.plugins.alias.aliases.'):
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name = name[len('supybot.plugins.alias.aliases.'):]
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if '.' in name:
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continue
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conf.registerGlobalValue(group, name, registry.String('', ''))
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conf.registerGlobalValue(group.get(name), 'locked',
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registry.Boolean(False, ''))
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for (name, value) in group.getValues(fullNames=False):
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name = name.lower() # Just in case.
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command = value()
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locked = value.locked()
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self.aliases[name] = [command, locked]
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for (alias, (command, locked)) in self.aliases.items():
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try:
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self.addAlias(irc, alias, command, locked)
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except Exception, e:
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self.log.exception('Exception when trying to add alias %s. '
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'Removing from the Alias database.', alias)
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del self.aliases[alias]
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def lock(self, irc, msg, args, name):
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"""<alias>
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Locks an alias so that no one else can change it.
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"""
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if hasattr(self, name) and self.isCommand(name):
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self.aliases[name][1] = True
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conf.supybot.plugins.Alias.aliases.get(name).locked.setValue(True)
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irc.replySuccess()
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else:
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irc.error('There is no such alias.')
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lock = wrap(lock, [('checkCapability', 'admin'), 'commandName'])
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def unlock(self, irc, msg, args, name):
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"""<alias>
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Unlocks an alias so that people can define new aliases over it.
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"""
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if hasattr(self, name) and self.isCommand(name):
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self.aliases[name][1] = False
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conf.supybot.plugins.Alias.aliases.get(name).locked.setValue(False)
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irc.replySuccess()
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else:
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irc.error('There is no such alias.')
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unlock = wrap(unlock, [('checkCapability', 'admin'), 'commandName'])
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_invalidCharsRe = re.compile(r'[\[\]\s]')
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def addAlias(self, irc, name, alias, lock=False):
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if self._invalidCharsRe.search(name):
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raise AliasError, 'Names cannot contain spaces or square brackets.'
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if '|' in name:
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raise AliasError, 'Names cannot contain pipes.'
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if irc.getCallback(name):
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raise AliasError, 'Names cannot coincide with names of plugins.'
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realName = callbacks.canonicalName(name)
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if name != realName:
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s = format('That name isn\'t valid. Try %q instead.', realName)
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raise AliasError, s
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name = realName
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cbs = callbacks.findCallbackForCommand(irc, name)
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if self in cbs:
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if hasattr(self, realName) and realName not in self.aliases:
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s = 'You can\'t overwrite commands in this plugin.'
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raise AliasError, s
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if name in self.aliases:
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(currentAlias, locked) = self.aliases[name]
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if locked and currentAlias != alias:
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raise AliasError, format('Alias %q is locked.', name)
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try:
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f = makeNewAlias(name, alias)
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except RecursiveAlias:
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raise AliasError, 'You can\'t define a recursive alias.'
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if name in self.aliases:
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# We gotta remove it so its value gets updated.
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conf.supybot.plugins.Alias.aliases.unregister(name)
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conf.supybot.plugins.Alias.aliases.register(name,
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registry.String(alias, ''))
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conf.supybot.plugins.Alias.aliases.get(name).register('locked',
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registry.Boolean(lock, ''))
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setattr(self.__class__, name, f)
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self.aliases[name] = [alias, lock]
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def removeAlias(self, name, evenIfLocked=False):
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name = callbacks.canonicalName(name)
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if hasattr(self, name) and self.isCommand(name):
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if evenIfLocked or not self.aliases[name][1]:
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delattr(self.__class__, name)
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del self.aliases[name]
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conf.supybot.plugins.Alias.aliases.unregister(name)
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else:
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raise AliasError, 'That alias is locked.'
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else:
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raise AliasError, 'There is no such alias.'
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def add(self, irc, msg, args, name, alias):
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"""<name> <alias>
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Defines an alias <name> that executes <alias>. The <alias>
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should be in the standard "command argument [nestedcommand argument]"
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arguments to the alias; they'll be filled with the first, second, etc.
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arguments. $1, $2, etc. can be used for required arguments. @1, @2,
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etc. can be used for optional arguments. $* simply means "all
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remaining arguments," and cannot be combined with optional arguments.
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"""
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if ' ' not in alias:
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# If it's a single word, they probably want $*.
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alias += ' $*'
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try:
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self.addAlias(irc, name, alias)
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self.log.info('Adding alias %q for %q (from %s)',
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name, alias, msg.prefix)
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irc.replySuccess()
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except AliasError, e:
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irc.error(str(e))
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add = wrap(add, ['commandName', 'text'])
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def remove(self, irc, msg, args, name):
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"""<name>
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Removes the given alias, if unlocked.
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"""
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try:
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self.removeAlias(name)
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self.log.info('Removing alias %q (from %s)', name, msg.prefix)
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irc.replySuccess()
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except AliasError, e:
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irc.error(str(e))
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remove = wrap(remove, ['commandName'])
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Class = Alias
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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