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Limnoria/src/callbacks.py
Daniel Folkinshteyn e98ac0f4c2 Some improvements to the commands.process function - better process naming and informational output. 
Conflicts:

	plugins/String/plugin.py
	src/commands.py
2011-08-25 11:36:47 +02:00

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###
# Copyright (c) 2002-2005, Jeremiah Fincher
# Copyright (c) 2008-2010, James Vega
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# 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
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
"""
This module contains the basic callbacks for handling PRIVMSGs.
"""
import supybot
import re
import copy
import time
import shlex
import getopt
import inspect
import operator
from cStringIO import StringIO
import supybot.log as log
import supybot.conf as conf
import supybot.utils as utils
import supybot.world as world
import supybot.ircdb as ircdb
import supybot.irclib as irclib
import supybot.ircmsgs as ircmsgs
import supybot.ircutils as ircutils
import supybot.registry as registry
from supybot.utils.iter import any, all
from supybot.i18n import PluginInternationalization, internationalizeDocstring
_ = PluginInternationalization()
def _addressed(nick, msg, prefixChars=None, nicks=None,
prefixStrings=None, whenAddressedByNick=None,
whenAddressedByNickAtEnd=None):
def get(group):
if ircutils.isChannel(target):
group = group.get(target)
return group()
def stripPrefixStrings(payload):
for prefixString in prefixStrings:
if payload.startswith(prefixString):
payload = payload[len(prefixString):].lstrip()
return payload
assert msg.command == 'PRIVMSG'
(target, payload) = msg.args
if not payload:
return ''
if prefixChars is None:
prefixChars = get(conf.supybot.reply.whenAddressedBy.chars)
if whenAddressedByNick is None:
whenAddressedByNick = get(conf.supybot.reply.whenAddressedBy.nick)
if whenAddressedByNickAtEnd is None:
r = conf.supybot.reply.whenAddressedBy.nick.atEnd
whenAddressedByNickAtEnd = get(r)
if prefixStrings is None:
prefixStrings = get(conf.supybot.reply.whenAddressedBy.strings)
# We have to check this before nicks -- try "@google supybot" with supybot
# and whenAddressedBy.nick.atEnd on to see why.
if any(payload.startswith, prefixStrings):
return stripPrefixStrings(payload)
elif payload[0] in prefixChars:
return payload[1:].strip()
if nicks is None:
nicks = get(conf.supybot.reply.whenAddressedBy.nicks)
nicks = map(ircutils.toLower, nicks)
else:
nicks = list(nicks) # Just in case.
nicks.insert(0, ircutils.toLower(nick))
# Ok, let's see if it's a private message.
if ircutils.nickEqual(target, nick):
payload = stripPrefixStrings(payload)
while payload and payload[0] in prefixChars:
payload = payload[1:].lstrip()
return payload
# Ok, not private. Does it start with our nick?
elif whenAddressedByNick:
for nick in nicks:
lowered = ircutils.toLower(payload)
if lowered.startswith(nick):
try:
(maybeNick, rest) = payload.split(None, 1)
toContinue = False
while not ircutils.isNick(maybeNick, strictRfc=True):
if maybeNick[-1].isalnum():
toContinue = True
break
maybeNick = maybeNick[:-1]
if toContinue:
continue
if ircutils.nickEqual(maybeNick, nick):
return rest
else:
continue
except ValueError: # split didn't work.
continue
elif whenAddressedByNickAtEnd and lowered.endswith(nick):
rest = payload[:-len(nick)]
possiblePayload = rest.rstrip(' \t,;')
if possiblePayload != rest:
# There should be some separator between the nick and the
# previous alphanumeric character.
return possiblePayload
if get(conf.supybot.reply.whenNotAddressed):
return payload
else:
return ''
def addressed(nick, msg, **kwargs):
"""If msg is addressed to 'name', returns the portion after the address.
Otherwise returns the empty string.
"""
payload = msg.addressed
if payload is not None:
return payload
else:
payload = _addressed(nick, msg, **kwargs)
msg.tag('addressed', payload)
return payload
def canonicalName(command):
"""Turn a command into its canonical form.
Currently, this makes everything lowercase and removes all dashes and
underscores.
"""
if isinstance(command, unicode):
command = command.encode('utf-8')
special = '\t -_'
reAppend = ''
while command and command[-1] in special:
reAppend = command[-1] + reAppend
command = command[:-1]
return command.translate(utils.str.chars, special).lower() + reAppend
def reply(msg, s, prefixNick=None, private=None,
notice=None, to=None, action=None, error=False):
msg.tag('repliedTo')
# Ok, let's make the target:
# XXX This isn't entirely right. Consider to=#foo, private=True.
target = ircutils.replyTo(msg)
if ircutils.isChannel(to):
target = to
if ircutils.isChannel(target):
channel = target
else:
channel = None
if notice is None:
notice = conf.get(conf.supybot.reply.withNotice, channel)
if private is None:
private = conf.get(conf.supybot.reply.inPrivate, channel)
if prefixNick is None:
prefixNick = conf.get(conf.supybot.reply.withNickPrefix, channel)
if error:
notice =conf.get(conf.supybot.reply.error.withNotice, channel) or notice
private=conf.get(conf.supybot.reply.error.inPrivate, channel) or private
s = _('Error: ') + s
if private:
prefixNick = False
if to is None:
target = msg.nick
else:
target = to
if action:
prefixNick = False
if to is None:
to = msg.nick
# Ok, now let's make the payload:
s = ircutils.safeArgument(s)
if not s and not action:
s = _('Error: I tried to send you an empty message.')
if prefixNick and ircutils.isChannel(target):
# Let's may sure we don't do, "#channel: foo.".
if not ircutils.isChannel(to):
s = '%s: %s' % (to, s)
if not ircutils.isChannel(target):
if conf.supybot.reply.withNoticeWhenPrivate():
notice = True
# And now, let's decide whether it's a PRIVMSG or a NOTICE.
msgmaker = ircmsgs.privmsg
if notice:
msgmaker = ircmsgs.notice
# We don't use elif here because actions can't be sent as NOTICEs.
if action:
msgmaker = ircmsgs.action
# Finally, we'll return the actual message.
ret = msgmaker(target, s)
ret.tag('inReplyTo', msg)
return ret
def error(msg, s, **kwargs):
"""Makes an error reply to msg with the appropriate error payload."""
kwargs['error'] = True
msg.tag('isError')
return reply(msg, s, **kwargs)
def getHelp(method, name=None, doc=None):
if name is None:
name = method.__name__
if doc is None:
doclines = method.__doc__.splitlines()
else:
doclines = doc.splitlines()
s = '%s %s' % (name, doclines.pop(0))
if doclines:
help = ' '.join(doclines)
s = '(%s) -- %s' % (ircutils.bold(s), help)
return utils.str.normalizeWhitespace(s)
def getSyntax(method, name=None, doc=None):
if name is None:
name = method.__name__
if doc is None:
doclines = method.__doc__.splitlines()
else:
doclines = doc.splitlines()
return '%s %s' % (name, doclines[0])
class Error(Exception):
"""Generic class for errors in Privmsg callbacks."""
pass
class ArgumentError(Error):
"""The bot replies with a help message when this is raised."""
pass
class Tokenizer(object):
# This will be used as a global environment to evaluate strings in.
# Evaluation is, of course, necessary in order to allow escaped
# characters to be properly handled.
#
# These are the characters valid in a token. Everything printable except
# double-quote, left-bracket, and right-bracket.
validChars = utils.str.chars.translate(utils.str.chars, '\x00\r\n \t')
def __init__(self, brackets='', pipe=False, quotes='"'):
if brackets:
self.validChars=self.validChars.translate(utils.str.chars, brackets)
self.left = brackets[0]
self.right = brackets[1]
else:
self.left = ''
self.right = ''
self.pipe = pipe
if self.pipe:
self.validChars = self.validChars.translate(utils.str.chars, '|')
self.quotes = quotes
self.validChars = self.validChars.translate(utils.str.chars, quotes)
def _handleToken(self, token):
if token[0] == token[-1] and token[0] in self.quotes:
token = token[1:-1]
token = token.decode('string_escape')
return token
def _insideBrackets(self, lexer):
ret = []
while True:
token = lexer.get_token()
if not token:
raise SyntaxError, _('Missing "%s". You may want to '
'quote your arguments with double '
'quotes in order to prevent extra '
'brackets from being evaluated '
'as nested commands.') % self.right
elif token == self.right:
return ret
elif token == self.left:
ret.append(self._insideBrackets(lexer))
else:
ret.append(self._handleToken(token))
firstToken = False
return ret
def tokenize(self, s):
lexer = shlex.shlex(StringIO(s))
lexer.commenters = ''
lexer.quotes = self.quotes
lexer.wordchars = self.validChars
args = []
ends = []
while True:
token = lexer.get_token()
if not token:
break
elif token == '|' and self.pipe:
# The "and self.pipe" might seem redundant here, but it's there
# for strings like 'foo | bar', where a pipe stands alone as a
# token, but shouldn't be treated specially.
if not args:
raise SyntaxError, _('"|" with nothing preceding. I '
'obviously can\'t do a pipe with '
'nothing before the |.')
ends.append(args)
args = []
elif token == self.left:
args.append(self._insideBrackets(lexer))
elif token == self.right:
raise SyntaxError, _('Spurious "%s". You may want to '
'quote your arguments with double '
'quotes in order to prevent extra '
'brackets from being evaluated '
'as nested commands.') % self.right
else:
args.append(self._handleToken(token))
if ends:
if not args:
raise SyntaxError, _('"|" with nothing following. I '
'obviously can\'t do a pipe with '
'nothing after the |.')
args.append(ends.pop())
while ends:
args[-1].append(ends.pop())
return args
def tokenize(s, channel=None):
"""A utility function to create a Tokenizer and tokenize a string."""
pipe = False
brackets = ''
nested = conf.supybot.commands.nested
if nested():
brackets = conf.get(nested.brackets, channel)
if conf.get(nested.pipeSyntax, channel): # No nesting, no pipe.
pipe = True
quotes = conf.get(conf.supybot.commands.quotes, channel)
start = time.time()
try:
ret = Tokenizer(brackets=brackets,pipe=pipe,quotes=quotes).tokenize(s)
return ret
except ValueError, e:
raise SyntaxError, str(e)
def formatCommand(command):
return ' '.join(command)
def checkCommandCapability(msg, cb, commandName):
assert isinstance(commandName, basestring), commandName
plugin = cb.name().lower()
pluginCommand = '%s.%s' % (plugin, commandName)
def checkCapability(capability):
assert ircdb.isAntiCapability(capability)
if ircdb.checkCapability(msg.prefix, capability):
log.info('Preventing %s from calling %s because of %s.',
msg.prefix, pluginCommand, capability)
raise RuntimeError, capability
try:
antiPlugin = ircdb.makeAntiCapability(plugin)
antiCommand = ircdb.makeAntiCapability(commandName)
antiPluginCommand = ircdb.makeAntiCapability(pluginCommand)
checkCapability(antiPlugin)
checkCapability(antiCommand)
checkCapability(antiPluginCommand)
checkAtEnd = [commandName, pluginCommand]
default = conf.supybot.capabilities.default()
if ircutils.isChannel(msg.args[0]):
channel = msg.args[0]
checkCapability(ircdb.makeChannelCapability(channel, antiCommand))
checkCapability(ircdb.makeChannelCapability(channel, antiPlugin))
checkCapability(ircdb.makeChannelCapability(channel,
antiPluginCommand))
chanPlugin = ircdb.makeChannelCapability(channel, plugin)
chanCommand = ircdb.makeChannelCapability(channel, commandName)
chanPluginCommand = ircdb.makeChannelCapability(channel,
pluginCommand)
checkAtEnd += [chanCommand, chanPlugin, chanPluginCommand]
default &= ircdb.channels.getChannel(channel).defaultAllow
return not (default or \
any(lambda x: ircdb.checkCapability(msg.prefix, x),
checkAtEnd))
except RuntimeError, e:
s = ircdb.unAntiCapability(str(e))
return s
class RichReplyMethods(object):
"""This is a mixin so these replies need only be defined once. It operates
under several assumptions, including the fact that 'self' is an Irc object
of some sort and there is a self.msg that is an IrcMsg."""
def __makeReply(self, prefix, s):
if s:
s = '%s %s' % (prefix, s)
else:
s = prefix
return ircutils.standardSubstitute(self, self.msg, s)
def _getConfig(self, wrapper):
return conf.get(wrapper, self.msg.args[0])
def replySuccess(self, s='', **kwargs):
v = self._getConfig(conf.supybot.replies.success)
if v:
s = self.__makeReply(v, s)
return self.reply(s, **kwargs)
else:
self.noReply()
def replyError(self, s='', **kwargs):
v = self._getConfig(conf.supybot.replies.error)
if 'msg' in kwargs:
msg = kwargs['msg']
if ircdb.checkCapability(msg.prefix, 'owner'):
v = self._getConfig(conf.supybot.replies.errorOwner)
s = self.__makeReply(v, s)
return self.reply(s, **kwargs)
def replies(self, L, prefixer=None, joiner=None,
onlyPrefixFirst=False, **kwargs):
if prefixer is None:
prefixer = ''
if joiner is None:
joiner = utils.str.commaAndify
if isinstance(prefixer, basestring):
prefixer = prefixer.__add__
if isinstance(joiner, basestring):
joiner = joiner.join
if conf.supybot.reply.oneToOne():
return self.reply(prefixer(joiner(L)), **kwargs)
else:
msg = None
first = True
for s in L:
if onlyPrefixFirst:
if first:
first = False
msg = self.reply(prefixer(s), **kwargs)
else:
msg = self.reply(s, **kwargs)
else:
msg = self.reply(prefixer(s), **kwargs)
return msg
def noReply(self):
self.repliedTo = True
def _error(self, s, Raise=False, **kwargs):
if Raise:
raise Error, s
else:
return self.error(s, **kwargs)
def errorNoCapability(self, capability, s='', **kwargs):
if 'Raise' not in kwargs:
kwargs['Raise'] = True
if isinstance(capability, basestring): # checkCommandCapability!
log.warning('Denying %s for lacking %q capability.',
self.msg.prefix, capability)
if not self._getConfig(conf.supybot.reply.error.noCapability):
v = self._getConfig(conf.supybot.replies.noCapability)
s = self.__makeReply(v % capability, s)
return self._error(s, **kwargs)
else:
log.debug('Not sending capability error, '
'supybot.reply.error.noCapability is False.')
else:
log.warning('Denying %s for some unspecified capability '
'(or a default).', self.msg.prefix)
v = self._getConfig(conf.supybot.replies.genericNoCapability)
return self._error(self.__makeReply(v, s), **kwargs)
def errorPossibleBug(self, s='', **kwargs):
v = self._getConfig(conf.supybot.replies.possibleBug)
if s:
s += ' (%s)' % v
else:
s = v
return self._error(s, **kwargs)
def errorNotRegistered(self, s='', **kwargs):
v = self._getConfig(conf.supybot.replies.notRegistered)
return self._error(self.__makeReply(v, s), **kwargs)
def errorNoUser(self, s='', name='that user', **kwargs):
if 'Raise' not in kwargs:
kwargs['Raise'] = True
v = self._getConfig(conf.supybot.replies.noUser)
try:
v = v % name
except TypeError:
log.warning('supybot.replies.noUser should have one "%s" in it.')
return self._error(self.__makeReply(v, s), **kwargs)
def errorRequiresPrivacy(self, s='', **kwargs):
v = self._getConfig(conf.supybot.replies.requiresPrivacy)
return self._error(self.__makeReply(v, s), **kwargs)
def errorInvalid(self, what, given=None, s='', repr=True, **kwargs):
if given is not None:
if repr:
given = _repr(given)
else:
given = '"%s"' % given
v = _('%s is not a valid %s.') % (given, what)
else:
v = _('That\'s not a valid %s.') % what
if 'Raise' not in kwargs:
kwargs['Raise'] = True
return self._error(self.__makeReply(v, s), **kwargs)
_repr = repr
class ReplyIrcProxy(RichReplyMethods):
"""This class is a thin wrapper around an irclib.Irc object that gives it
the reply() and error() methods (as well as everything in RichReplyMethods,
based on those two)."""
def __init__(self, irc, msg):
self.irc = irc
self.msg = msg
def getRealIrc(self):
"""Returns the real irclib.Irc object underlying this proxy chain."""
if isinstance(self.irc, irclib.Irc):
return self.irc
else:
return self.irc.getRealIrc()
# This should make us be considered equal to our irclib.Irc object for
# hashing; an important thing (no more "too many open files" exceptions :))
def __hash__(self):
return hash(self.getRealIrc())
def __eq__(self, other):
return self.getRealIrc() == other
__req__ = __eq__
def __ne__(self, other):
return not (self == other)
__rne__ = __ne__
def error(self, s, msg=None, **kwargs):
if 'Raise' in kwargs and kwargs['Raise']:
if s:
raise Error, s
else:
raise ArgumentError
if msg is None:
msg = self.msg
m = error(msg, s, **kwargs)
self.irc.queueMsg(m)
return m
def reply(self, s, msg=None, **kwargs):
if msg is None:
msg = self.msg
assert not isinstance(s, ircmsgs.IrcMsg), \
'Old code alert: there is no longer a "msg" argument to reply.'
kwargs.pop('noLengthCheck', None)
m = reply(msg, s, **kwargs)
self.irc.queueMsg(m)
return m
def __getattr__(self, attr):
return getattr(self.irc, attr)
SimpleProxy = ReplyIrcProxy # Backwards-compatibility
class NestedCommandsIrcProxy(ReplyIrcProxy):
"A proxy object to allow proper nesting of commands (even threaded ones)."
_mores = ircutils.IrcDict()
def __init__(self, irc, msg, args, nested=0):
assert isinstance(args, list), 'Args should be a list, not a string.'
self.irc = irc
self.msg = msg
self.nested = nested
self.repliedTo = False
if not self.nested and isinstance(irc, self.__class__):
# This means we were given an NestedCommandsIrcProxy instead of an
# irclib.Irc, and so we're obviously nested. But nested wasn't
# set! So we take our given Irc's nested value.
self.nested += irc.nested
maxNesting = conf.supybot.commands.nested.maximum()
if maxNesting and self.nested > maxNesting:
log.warning('%s attempted more than %s levels of nesting.',
self.msg.prefix, maxNesting)
return self.error(_('You\'ve attempted more nesting than is '
'currently allowed on this bot.'))
# The deepcopy here is necessary for Scheduler; it re-runs already
# tokenized commands. There's a possibility a simple copy[:] would
# work, but we're being careful.
self.args = copy.deepcopy(args)
self.counter = 0
self._resetReplyAttributes()
if not args:
self.finalEvaled = True
self._callInvalidCommands()
else:
self.finalEvaled = False
world.commandsProcessed += 1
self.evalArgs()
def __eq__(self, other):
return other == self.getRealIrc()
def __hash__(self):
return hash(self.getRealIrc())
def _resetReplyAttributes(self):
self.to = None
self.action = None
self.notice = None
self.private = None
self.noLengthCheck = None
if ircutils.isChannel(self.msg.args[0]):
self.prefixNick = conf.get(conf.supybot.reply.withNickPrefix,
self.msg.args[0])
else:
self.prefixNick = conf.supybot.reply.withNickPrefix()
def evalArgs(self):
while self.counter < len(self.args):
self.repliedTo = False
if isinstance(self.args[self.counter], basestring):
# If it's a string, just go to the next arg. There is no
# evaluation to be done for strings. If, at some point,
# we decided to, say, convert every string using
# ircutils.standardSubstitute, this would be where we would
# probably put it.
self.counter += 1
else:
assert isinstance(self.args[self.counter], list)
# It's a list. So we spawn another NestedCommandsIrcProxy
# to evaluate its args. When that class has finished
# evaluating its args, it will call our reply method, which
# will subsequently call this function again, and we'll
# pick up where we left off via self.counter.
self.__class__(self, self.msg,
self.args[self.counter], nested=self.nested+1)
# We have to return here because the new NestedCommandsIrcProxy
# might not have called our reply method instantly, since
# its command might be threaded. So (obviously) we can't
# just fall through to self.finalEval.
return
# Once all the list args are evaluated, we then evaluate our own
# list of args, since we're assured that they're all strings now.
assert all(lambda x: isinstance(x, basestring), self.args)
self.finalEval()
def _callInvalidCommands(self):
log.debug('Calling invalidCommands.')
threaded = False
cbs = []
for cb in self.irc.callbacks:
if hasattr(cb, 'invalidCommand'):
cbs.append(cb)
threaded = threaded or cb.threaded
def callInvalidCommands():
self.repliedTo = False
for cb in cbs:
log.debug('Calling %s.invalidCommand.', cb.name())
try:
cb.invalidCommand(self, self.msg, self.args)
except Error, e:
self.error(str(e))
except Exception, e:
log.exception('Uncaught exception in %s.invalidCommand.',
cb.name())
log.debug('Finished calling %s.invalidCommand.', cb.name())
if self.repliedTo:
log.debug('Done calling invalidCommands: %s.',cb.name())
return
if threaded:
name = 'Thread #%s (for invalidCommands)' % world.threadsSpawned
t = world.SupyThread(target=callInvalidCommands, name=name)
t.setDaemon(True)
t.start()
else:
callInvalidCommands()
def findCallbacksForArgs(self, args):
"""Returns a two-tuple of (command, plugins) that has the command
(a list of strings) and the plugins for which it was a command."""
assert isinstance(args, list)
args = map(canonicalName, args)
cbs = []
maxL = []
for cb in self.irc.callbacks:
if not hasattr(cb, 'getCommand'):
continue
L = cb.getCommand(args)
#log.debug('%s.getCommand(%r) returned %r', cb.name(), args, L)
if L and L >= maxL:
maxL = L
cbs.append((cb, L))
assert isinstance(L, list), \
'getCommand now returns a list, not a method.'
assert utils.iter.startswith(L, args), \
'getCommand must return a prefix of the args given. ' \
'(args given: %r, returned: %r)' % (args, L)
log.debug('findCallbacksForArgs: %r', cbs)
cbs = [cb for (cb, L) in cbs if L == maxL]
if len(maxL) == 1:
# Special case: one arg determines the callback. In this case, we
# have to check, in order:
# 1. Whether the arg is the same as the name of a callback. This
# callback would then win.
for cb in cbs:
if cb.canonicalName() == maxL[0]:
return (maxL, [cb])
# 2. Whether a defaultplugin is defined.
defaultPlugins = conf.supybot.commands.defaultPlugins
try:
defaultPlugin = defaultPlugins.get(maxL[0])()
log.debug('defaultPlugin: %r', defaultPlugin)
if defaultPlugin:
cb = self.irc.getCallback(defaultPlugin)
if cb in cbs:
# This is just a sanity check, but there's a small
# possibility that a default plugin for a command
# is configured to point to a plugin that doesn't
# actually have that command.
return (maxL, [cb])
except registry.NonExistentRegistryEntry:
pass
# 3. Whether an importantPlugin is one of the responses.
important = defaultPlugins.importantPlugins()
important = map(canonicalName, important)
importants = []
for cb in cbs:
if cb.canonicalName() in important:
importants.append(cb)
if len(importants) == 1:
return (maxL, importants)
return (maxL, cbs)
def finalEval(self):
# Now that we've already iterated through our args and made sure
# that any list of args was evaluated (by spawning another
# NestedCommandsIrcProxy to evaluated it into a string), we can finally
# evaluated our own list of arguments.
assert not self.finalEvaled, 'finalEval called twice.'
self.finalEvaled = True
# Now, the way we call a command is we iterate over the loaded pluings,
# asking each one if the list of args we have interests it. The
# way we do that is by calling getCommand on the plugin.
# The plugin will return a list of args which it considers to be
# "interesting." We will then give our args to the plugin which
# has the *longest* list. The reason we pick the longest list is
# that it seems reasonable that the longest the list, the more
# specific the command is. That is, given a list of length X, a list
# of length X+1 would be even more specific (assuming that both lists
# used the same prefix. Of course, if two plugins return a list of the
# same length, we'll just error out with a message about ambiguity.
(command, cbs) = self.findCallbacksForArgs(self.args)
if not cbs:
# We used to handle addressedRegexps here, but I think we'll let
# them handle themselves in getCommand. They can always just
# return the full list of args as their "command".
self._callInvalidCommands()
elif len(cbs) > 1:
names = sorted([cb.name() for cb in cbs])
command = formatCommand(command)
self.error(format(_('The command %q is available in the %L '
'plugins. Please specify the plugin '
'whose command you wish to call by using '
'its name as a command before %q.'),
command, names, command))
else:
cb = cbs[0]
args = self.args[len(command):]
if world.isMainThread() and \
(cb.threaded or conf.supybot.debug.threadAllCommands()):
t = CommandThread(target=cb._callCommand,
args=(command, self, self.msg, args))
t.start()
else:
cb._callCommand(command, self, self.msg, args)
def reply(self, s, noLengthCheck=False, prefixNick=None,
action=None, private=None, notice=None, to=None, msg=None):
"""reply(s) -> replies to msg with s
Keyword arguments:
noLengthCheck=False: True if the length shouldn't be checked
(used for 'more' handling)
prefixNick=True: False if the nick shouldn't be prefixed to the
reply.
action=False: True if the reply should be an action.
private=False: True if the reply should be in private.
notice=False: True if the reply should be noticed when the
bot is configured to do so.
to=<nick|channel>: The nick or channel the reply should go to.
Defaults to msg.args[0] (or msg.nick if private)
"""
# These use and or or based on whether or not they default to True or
# False. Those that default to True use and; those that default to
# False use or.
assert not isinstance(s, ircmsgs.IrcMsg), \
'Old code alert: there is no longer a "msg" argument to reply.'
self.repliedTo = True
if msg is None:
msg = self.msg
if prefixNick is not None:
self.prefixNick = prefixNick
if action is not None:
self.action = self.action or action
if action:
self.prefixNick = False
if notice is not None:
self.notice = self.notice or notice
if private is not None:
self.private = self.private or private
if to is not None:
self.to = self.to or to
# action=True implies noLengthCheck=True and prefixNick=False
self.noLengthCheck=noLengthCheck or self.noLengthCheck or self.action
target = self.private and self.to or self.msg.args[0]
s = str(s) # Allow non-string esses.
if self.finalEvaled:
try:
if isinstance(self.irc, self.__class__):
s = s[:conf.supybot.reply.maximumLength()]
return self.irc.reply(s, to=self.to,
notice=self.notice,
action=self.action,
private=self.private,
prefixNick=self.prefixNick,
noLengthCheck=self.noLengthCheck)
elif self.noLengthCheck:
# noLengthCheck only matters to NestedCommandsIrcProxy, so
# it's not used here. Just in case you were wondering.
m = reply(msg, s, to=self.to,
notice=self.notice,
action=self.action,
private=self.private,
prefixNick=self.prefixNick)
self.irc.queueMsg(m)
return m
else:
s = ircutils.safeArgument(s)
allowedLength = conf.get(conf.supybot.reply.mores.length,
target)
if not allowedLength: # 0 indicates this.
allowedLength = 470 - len(self.irc.prefix)
allowedLength -= len(msg.nick)
# The '(XX more messages)' may have not the same
# length in the current locale
allowedLength -= len(_('(XX more messages)'))
maximumMores = conf.get(conf.supybot.reply.mores.maximum,
target)
maximumLength = allowedLength * maximumMores
if len(s) > maximumLength:
log.warning('Truncating to %s bytes from %s bytes.',
maximumLength, len(s))
s = s[:maximumLength]
if len(s) < allowedLength or \
not conf.get(conf.supybot.reply.mores, target):
# In case we're truncating, we add 20 to allowedLength,
# because our allowedLength is shortened for the
# "(XX more messages)" trailer.
s = s[:allowedLength+len(_('(XX more messages)'))]
# There's no need for action=self.action here because
# action implies noLengthCheck, which has already been
# handled. Let's stick an assert in here just in case.
assert not self.action
m = reply(msg, s, to=self.to,
notice=self.notice,
private=self.private,
prefixNick=self.prefixNick)
self.irc.queueMsg(m)
return m
msgs = ircutils.wrap(s, allowedLength)
msgs.reverse()
instant = conf.get(conf.supybot.reply.mores.instant,target)
while instant > 1 and msgs:
instant -= 1
response = msgs.pop()
m = reply(msg, response, to=self.to,
notice=self.notice,
private=self.private,
prefixNick=self.prefixNick)
self.irc.queueMsg(m)
# XXX We should somehow allow these to be returned, but
# until someone complains, we'll be fine :) We
# can't return from here, though, for obvious
# reasons.
# return m
if not msgs:
return
response = msgs.pop()
if msgs:
if len(msgs) == 1:
more = _('more message')
else:
more = _('more messages')
n = ircutils.bold('(%i %s)' % (len(msgs), more))
response = '%s %s' % (response, n)
prefix = msg.prefix
if self.to and ircutils.isNick(self.to):
try:
state = self.getRealIrc().state
prefix = state.nickToHostmask(self.to)
except KeyError:
pass # We'll leave it as it is.
mask = prefix.split('!', 1)[1]
self._mores[mask] = msgs
public = ircutils.isChannel(msg.args[0])
private = self.private or not public
self._mores[msg.nick] = (private, msgs)
m = reply(msg, response, to=self.to,
action=self.action,
notice=self.notice,
private=self.private,
prefixNick=self.prefixNick)
self.irc.queueMsg(m)
return m
finally:
self._resetReplyAttributes()
else:
if msg.ignored:
# Since the final reply string is constructed via
# ' '.join(self.args), the args index for ignored commands
# needs to be popped to avoid extra spaces in the final reply.
self.args.pop(self.counter)
msg.tag('ignored', False)
else:
self.args[self.counter] = s
self.evalArgs()
def error(self, s='', Raise=False, **kwargs):
self.repliedTo = True
if Raise:
if s:
raise Error, s
else:
raise ArgumentError
if s:
if not isinstance(self.irc, irclib.Irc):
return self.irc.error(s, **kwargs)
else:
m = error(self.msg, s, **kwargs)
self.irc.queueMsg(m)
return m
else:
raise ArgumentError
def __getattr__(self, attr):
return getattr(self.irc, attr)
IrcObjectProxy = NestedCommandsIrcProxy
class CommandThread(world.SupyThread):
"""Just does some extra logging and error-recovery for commands that need
to run in threads.
"""
def __init__(self, target=None, args=(), kwargs={}):
self.command = args[0]
self.cb = target.im_self
threadName = 'Thread #%s (for %s.%s)' % (world.threadsSpawned,
self.cb.name(),
self.command)
log.debug('Spawning thread %s (args: %r)', threadName, args)
self.__parent = super(CommandThread, self)
self.__parent.__init__(target=target, name=threadName,
args=args, kwargs=kwargs)
self.setDaemon(True)
self.originalThreaded = self.cb.threaded
self.cb.threaded = True
def run(self):
try:
self.__parent.run()
finally:
self.cb.threaded = self.originalThreaded
class CommandProcess(world.SupyProcess):
"""Just does some extra logging and error-recovery for commands that need
to run in processes.
"""
def __init__(self, target=None, args=(), kwargs={}):
pn = kwargs.pop('pn', 'Unknown')
cn = kwargs.pop('cn', 'unknown')
procName = 'Process #%s (for %s.%s)' % (world.processesSpawned,
pn,
cn)
log.debug('Spawning process %s (args: %r)', procName, args)
self.__parent = super(CommandProcess, self)
self.__parent.__init__(target=target, name=procName,
args=args, kwargs=kwargs)
def run(self):
self.__parent.run()
class CanonicalString(registry.NormalizedString):
def normalize(self, s):
return canonicalName(s)
class CanonicalNameSet(utils.NormalizingSet):
def normalize(self, s):
return canonicalName(s)
class CanonicalNameDict(utils.InsensitivePreservingDict):
def key(self, s):
return canonicalName(s)
class Disabled(registry.SpaceSeparatedListOf):
sorted = True
Value = CanonicalString
List = CanonicalNameSet
conf.registerGlobalValue(conf.supybot.commands, 'disabled',
Disabled([], _("""Determines what commands are currently disabled. Such
commands will not appear in command lists, etc. They will appear not even
to exist.""")))
class DisabledCommands(object):
def __init__(self):
self.d = CanonicalNameDict()
for name in conf.supybot.commands.disabled():
if '.' in name:
(plugin, command) = name.split('.', 1)
if command in self.d:
if self.d[command] is not None:
self.d[command].add(plugin)
else:
self.d[command] = CanonicalNameSet([plugin])
else:
self.d[name] = None
def disabled(self, command, plugin=None):
if command in self.d:
if self.d[command] is None:
return True
elif plugin in self.d[command]:
return True
return False
def add(self, command, plugin=None):
if plugin is None:
self.d[command] = None
else:
if command in self.d:
if self.d[command] is not None:
self.d[command].add(plugin)
else:
self.d[command] = CanonicalNameSet([plugin])
def remove(self, command, plugin=None):
if plugin is None:
del self.d[command]
else:
if self.d[command] is not None:
self.d[command].remove(plugin)
class BasePlugin(object):
def __init__(self, *args, **kwargs):
self.cbs = []
for attr in dir(self):
if attr != canonicalName(attr):
continue
obj = getattr(self, attr)
if isinstance(obj, type) and issubclass(obj, BasePlugin):
cb = obj(*args, **kwargs)
setattr(self, attr, cb)
self.cbs.append(cb)
cb.log = log.getPluginLogger('%s.%s' % (self.name(),cb.name()))
super(BasePlugin, self).__init__()
class SynchronizedAndFirewalled(log.MetaFirewall, utils.python.Synchronized):
pass # Necessary for the metaclass compatibility issue.
class Commands(BasePlugin):
__metaclass__ = SynchronizedAndFirewalled
__synchronized__ = (
'__call__',
'callCommand',
'invalidCommand',
)
# For a while, a comment stood here to say, "Eventually callCommand." But
# that's wrong, because we can't do generic error handling in this
# callCommand -- plugins need to be able to override callCommand and do
# error handling there (see the Web plugin for an example).
__firewalled__ = {'isCommand': None,
'_callCommand': None}
commandArgs = ['self', 'irc', 'msg', 'args']
# These must be class-scope, so all plugins use the same one.
_disabled = DisabledCommands()
def name(self):
return self.__class__.__name__
def canonicalName(self):
return canonicalName(self.name())
def isDisabled(self, command):
return self._disabled.disabled(command, self.name())
def isCommandMethod(self, name):
"""Returns whether a given method name is a command in this plugin."""
# This function is ugly, but I don't want users to call methods like
# doPrivmsg or __init__ or whatever, and this is good to stop them.
# Don't normalize this name: consider outFilter(self, irc, msg).
# name = canonicalName(name)
if self.isDisabled(name):
return False
if name != canonicalName(name):
return False
if hasattr(self, name):
method = getattr(self, name)
if inspect.ismethod(method):
code = method.im_func.func_code
return inspect.getargs(code)[0] == self.commandArgs
else:
return False
else:
return False
def isCommand(self, command):
"""Convenience, backwards-compatibility, semi-deprecated."""
if isinstance(command, basestring):
return self.isCommandMethod(command)
else:
# Since we're doing a little type dispatching here, let's not be
# too liberal.
assert isinstance(command, list)
return self.getCommand(command) == command
def getCommand(self, args):
assert args == map(canonicalName, args)
first = args[0]
for cb in self.cbs:
if first == cb.canonicalName():
return cb.getCommand(args)
if first == self.canonicalName() and len(args) > 1:
ret = self.getCommand(args[1:])
if ret:
return [first] + ret
if self.isCommandMethod(first):
return [first]
return []
def getCommandMethod(self, command):
"""Gets the given command from this plugin."""
#print '*** %s.getCommandMethod(%r)' % (self.name(), command)
assert not isinstance(command, basestring)
assert command == map(canonicalName, command)
assert self.getCommand(command) == command
for cb in self.cbs:
if command[0] == cb.canonicalName():
return cb.getCommandMethod(command)
if len(command) > 1:
assert command[0] == self.canonicalName()
return self.getCommandMethod(command[1:])
else:
method = getattr(self, command[0])
if inspect.ismethod(method):
code = method.im_func.func_code
if inspect.getargs(code)[0] == self.commandArgs:
return method
else:
raise AttributeError
def listCommands(self, pluginCommands=[]):
commands = set(pluginCommands)
for s in dir(self):
if self.isCommandMethod(s):
commands.add(s)
for cb in self.cbs:
name = cb.canonicalName()
for command in cb.listCommands():
if command == name:
commands.add(command)
else:
commands.add(' '.join([name, command]))
L = list(commands)
L.sort()
return L
def callCommand(self, command, irc, msg, *args, **kwargs):
method = self.getCommandMethod(command)
method(irc, msg, *args, **kwargs)
def _callCommand(self, command, irc, msg, *args, **kwargs):
self.log.info('%s called by %q.', formatCommand(command), msg.prefix)
# XXX I'm being extra-special-careful here, but we need to refactor
# this.
try:
for name in command:
cap = checkCommandCapability(msg, self, name)
if cap:
irc.errorNoCapability(cap)
return
try:
self.callingCommand = command
self.callCommand(command, irc, msg, *args, **kwargs)
finally:
self.callingCommand = None
except (getopt.GetoptError, ArgumentError), e:
self.log.debug('Got %s, giving argument error.',
utils.exnToString(e))
help = self.getCommandHelp(command)
if help.endswith('command has no help.'):
irc.error(_('Invalid arguments for %s.') % method.__name__)
else:
irc.reply(help)
except (SyntaxError, Error), e:
self.log.debug('Error return: %s', utils.exnToString(e))
irc.error(str(e))
except Exception, e:
self.log.exception('Uncaught exception in %s.', command)
if conf.supybot.reply.error.detailed():
irc.error(utils.exnToString(e))
else:
irc.replyError(msg=msg)
def getCommandHelp(self, command, simpleSyntax=None):
method = self.getCommandMethod(command)
help = getHelp
chan = None
if dynamic.msg is not None:
chan = dynamic.msg.args[0]
if simpleSyntax is None:
simpleSyntax = conf.get(conf.supybot.reply.showSimpleSyntax, chan)
if simpleSyntax:
help = getSyntax
if hasattr(method, '__doc__'):
return help(method, name=formatCommand(command))
else:
return format(_('The %q command has no help.'),
formatCommand(command))
class PluginMixin(BasePlugin, irclib.IrcCallback):
public = True
alwaysCall = ()
threaded = False
noIgnore = False
classModule = None
Proxy = NestedCommandsIrcProxy
def __init__(self, irc):
myName = self.name()
self.log = log.getPluginLogger(myName)
self.__parent = super(PluginMixin, self)
self.__parent.__init__(irc)
# We can't do this because of the specialness that Owner and Misc do.
# I guess plugin authors will have to get the capitalization right.
# self.callAfter = map(str.lower, self.callAfter)
# self.callBefore = map(str.lower, self.callBefore)
def canonicalName(self):
return canonicalName(self.name())
def __call__(self, irc, msg):
irc = SimpleProxy(irc, msg)
if msg.command == 'PRIVMSG':
if self.noIgnore or \
not ircdb.checkIgnored(msg.prefix, msg.args[0]) or \
not ircutils.isUserHostmask(msg.prefix): # Some services impl.
self.__parent.__call__(irc, msg)
else:
self.__parent.__call__(irc, msg)
def registryValue(self, name, channel=None, value=True):
plugin = self.name()
group = conf.supybot.plugins.get(plugin)
names = registry.split(name)
for name in names:
group = group.get(name)
if channel is not None:
if ircutils.isChannel(channel):
group = group.get(channel)
else:
self.log.debug('registryValue got channel=%r', channel)
if value:
return group()
else:
return group
def setRegistryValue(self, name, value, channel=None):
plugin = self.name()
group = conf.supybot.plugins.get(plugin)
names = registry.split(name)
for name in names:
group = group.get(name)
if channel is None:
group.setValue(value)
else:
group.get(channel).setValue(value)
def userValue(self, name, prefixOrName, default=None):
try:
id = str(ircdb.users.getUserId(prefixOrName))
except KeyError:
return None
plugin = self.name()
group = conf.users.plugins.get(plugin)
names = registry.split(name)
for name in names:
group = group.get(name)
return group.get(id)()
def setUserValue(self, name, prefixOrName, value,
ignoreNoUser=True, setValue=True):
try:
id = str(ircdb.users.getUserId(prefixOrName))
except KeyError:
if ignoreNoUser:
return
else:
raise
plugin = self.name()
group = conf.users.plugins.get(plugin)
names = registry.split(name)
for name in names:
group = group.get(name)
group = group.get(id)
if setValue:
group.setValue(value)
else:
group.set(value)
def getPluginHelp(self):
if hasattr(self, '__doc__'):
return self.__doc__
else:
return None
class Plugin(PluginMixin, Commands):
pass
Privmsg = Plugin # Backwards compatibility.
class PluginRegexp(Plugin):
"""Same as Plugin, except allows the user to also include regexp-based
callbacks. All regexp-based callbacks must be specified in the set (or
list) attribute "regexps", "addressedRegexps", or "unaddressedRegexps"
depending on whether they should always be triggered, triggered only when
the bot is addressed, or triggered only when the bot isn't addressed.
"""
flags = re.I
# 'regexps' methods are called whether the message is addressed or not.
regexps = ()
# 'addressedRegexps' methods are called only when the message is addressed,
# and then, only with the payload (i.e., what is returned from the
# 'addressed' function.
addressedRegexps = ()
# 'unaddressedRegexps' methods are called only when the message is *not*
# addressed.
unaddressedRegexps = ()
Proxy = SimpleProxy
def __init__(self, irc):
self.__parent = super(PluginRegexp, self)
self.__parent.__init__(irc)
self.res = []
self.addressedRes = []
self.unaddressedRes = []
for name in self.regexps:
method = getattr(self, name)
r = re.compile(method.__doc__, self.flags)
self.res.append((r, name))
for name in self.addressedRegexps:
method = getattr(self, name)
r = re.compile(method.__doc__, self.flags)
self.addressedRes.append((r, name))
for name in self.unaddressedRegexps:
method = getattr(self, name)
r = re.compile(method.__doc__, self.flags)
self.unaddressedRes.append((r, name))
def _callRegexp(self, name, irc, msg, m):
method = getattr(self, name)
try:
method(irc, msg, m)
except Error, e:
irc.error(str(e))
except Exception, e:
self.log.exception('Uncaught exception in _callRegexp:')
def invalidCommand(self, irc, msg, tokens):
s = ' '.join(tokens)
for (r, name) in self.addressedRes:
for m in r.finditer(s):
self._callRegexp(name, irc, msg, m)
def doPrivmsg(self, irc, msg):
if msg.isError:
return
proxy = self.Proxy(irc, msg)
if not msg.addressed:
for (r, name) in self.unaddressedRes:
for m in r.finditer(msg.args[1]):
self._callRegexp(name, proxy, msg, m)
for (r, name) in self.res:
for m in r.finditer(msg.args[1]):
self._callRegexp(name, proxy, msg, m)
PrivmsgCommandAndRegexp = PluginRegexp
# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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