mirror of
https://github.com/Mikaela/Limnoria.git
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431 lines
17 KiB
Python
431 lines
17 KiB
Python
###
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# Copyright (c) 2002-2005, Jeremiah Fincher
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# Copyright (c) 2009, James McCoy
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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 os
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import signal
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import supybot.log as log
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import supybot.conf as conf
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import supybot.utils as utils
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import supybot.world as world
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import supybot.ircdb as ircdb
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from supybot.commands import *
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from supybot.utils.iter import all
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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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from supybot.i18n import PluginInternationalization, internationalizeDocstring
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_ = PluginInternationalization('Config')
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###
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# Now, to setup the registry.
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###
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def getWrapper(name):
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parts = registry.split(name)
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if not parts or parts[0] not in ('supybot', 'users'):
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raise registry.InvalidRegistryName(name)
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group = getattr(conf, parts.pop(0))
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while parts:
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part = parts.pop(0)
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if group.__hasattr__(part):
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group = group.get(part)
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else:
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# We'll raise registry.InvalidRegistryName here so
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# that we have a useful error message for the user.
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raise registry.InvalidRegistryName(name)
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return group
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def getCapability(irc, name):
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capability = 'owner' # Default to requiring the owner capability.
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if not name.startswith('supybot') and not name.startswith('users'):
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name = 'supybot.' + name
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parts = registry.split(name)
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group = getattr(conf, parts.pop(0))
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while parts:
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part = parts.pop(0)
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group = group.get(part)
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if not getattr(group, '_opSettable', True):
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return 'owner'
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if irc.isChannel(part):
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# If a registry value has a channel in it, it requires a
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# 'channel,op' capability, or so we assume. We'll see if we're
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# proven wrong.
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capability = ircdb.makeChannelCapability(part, 'op')
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### Do more later, for specific capabilities/sections.
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return capability
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def isReadOnly(name):
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"""Prevents changing certain config variables to gain shell access via
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a vulnerable IRC network."""
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parts = registry.split(name.lower())
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if parts[0] != 'supybot':
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parts.insert(0, 'supybot')
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if parts == ['supybot', 'commands', 'allowshell'] and \
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not conf.supybot.commands.allowShell():
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# allow setting supybot.commands.allowShell from True to False,
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# but not from False to True.
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# Otherwise an IRC network could overwrite it.
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return True
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elif parts[0:2] == ['supybot', 'directories'] and \
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not conf.supybot.commands.allowShell():
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# Setting plugins directory allows for arbitrary code execution if
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# an attacker can both use the IRC network to MITM and upload files
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# on the server (eg. with a web CMS).
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# Setting other directories allows writing data at arbitrary
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# locations.
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return True
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else:
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return False
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def _reload():
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ircdb.users.reload()
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ircdb.ignores.reload()
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ircdb.channels.reload()
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registry.open_registry(world.registryFilename)
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def _hupHandler(sig, frame):
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log.info('Received SIGHUP, reloading configuration.')
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_reload()
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if os.name == 'posix':
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signal.signal(signal.SIGHUP, _hupHandler)
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def getConfigVar(irc, msg, args, state):
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name = args[0]
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if name.startswith('conf.'):
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name = name[5:]
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if not name.startswith('supybot') and not name.startswith('users'):
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name = 'supybot.' + name
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try:
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group = getWrapper(name)
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state.args.append(group)
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del args[0]
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except registry.InvalidRegistryName as e:
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state.errorInvalid(_('configuration variable'), str(e))
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addConverter('configVar', getConfigVar)
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def getSettableConfigVar(irc, msg, args, state):
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getConfigVar(irc, msg, args, state)
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if not hasattr(state.args[-1], 'set'):
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state.errorInvalid(_('settable configuration variable'),
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state.args[-1]._name)
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addConverter('settableConfigVar', getSettableConfigVar)
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class Config(callbacks.Plugin):
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"""Provides access to the Supybot configuration. This is
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a core Supybot plugin that should not be removed!"""
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def callCommand(self, command, irc, msg, *args, **kwargs):
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try:
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super(Config, self).callCommand(command, irc, msg, *args, **kwargs)
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except registry.InvalidRegistryValue as e:
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irc.error(str(e))
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def _list(self, irc, group):
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L = []
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for (vname, v) in group._children.items():
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if hasattr(group, '_channelValue') and group._channelValue and \
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irc.isChannel(vname) and not v._children:
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continue
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if hasattr(v, '_channelValue') and v._channelValue:
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vname = '#' + vname
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if v._added and not all(irc.isChannel, v._added):
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vname = '@' + vname
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L.append(vname)
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utils.sortBy(str.lower, L)
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return L
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@internationalizeDocstring
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def list(self, irc, msg, args, group):
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"""<group>
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Returns the configuration variables available under the given
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configuration <group>. If a variable has values under it, it is
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preceded by an '@' sign. If a variable is a 'ChannelValue', that is,
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it can be separately configured for each channel using the 'channel'
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command in this plugin, it is preceded by an '#' sign.
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"""
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L = self._list(irc, group)
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if L:
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irc.reply(format('%L', L))
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else:
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irc.error(_('There don\'t seem to be any values in %s.') %
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group._name)
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list = wrap(list, ['configVar'])
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@internationalizeDocstring
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def search(self, irc, msg, args, word):
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"""<word>
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Searches for <word> in the current configuration variables.
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"""
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L = []
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for (name, x) in conf.supybot.getValues(getChildren=True):
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if word in name.lower():
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possibleChannel = registry.split(name)[-1]
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if not irc.isChannel(possibleChannel):
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L.append(name)
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if L:
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irc.reply(format('%L', L))
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else:
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irc.reply(_('There were no matching configuration variables.'))
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search = wrap(search, ['lowered']) # XXX compose with withoutSpaces?
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def _getValue(self, irc, msg, group, network=None, channel=None, addGlobal=False):
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global_group = group
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global_value = str(group) or ' '
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group = group.getSpecific(
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network=network.network, channel=channel, check=False)
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value = str(group) or ' '
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if addGlobal and not irc.nested:
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if global_group._channelValue and channel:
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# TODO: also show the network value when relevant
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value = _(
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'Global: %(global_value)s; '
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'%(channel_name)s @ %(network_name)s: %(channel_value)s') % {
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'global_value': global_value,
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'channel_name': msg.channel,
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'network_name': irc.network,
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'channel_value': value,
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}
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elif global_group._networkValue and network:
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value = _(
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'Global: %(global_value)s; '
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'%(network_name)s: %(network_value)s') % {
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'global_value': global_value,
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'network_name': irc.network,
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'network_value': value,
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}
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if hasattr(global_group, 'value'):
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if not global_group._private:
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return (value, None)
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else:
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capability = getCapability(irc, group._name)
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if ircdb.checkCapability(msg.prefix, capability):
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return (value, True)
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else:
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irc.errorNoCapability(capability, Raise=True)
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else:
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irc.error(_('That registry variable has no value. Use the list '
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'command in this plugin to see what variables are '
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'available in this group.'), Raise=True)
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def _setValue(self, irc, msg, group, value):
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if isReadOnly(group._name):
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irc.error(_("This configuration variable is not writeable "
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"via IRC. To change it you have to: 1) use the 'flush' command 2) edit "
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"the config file 3) use the 'config reload' command."), Raise=True)
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capability = getCapability(irc, group._name)
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if ircdb.checkCapability(msg.prefix, capability):
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# I think callCommand catches exceptions here. Should it?
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group.set(value)
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else:
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irc.errorNoCapability(capability, Raise=True)
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@internationalizeDocstring
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def channel(self, irc, msg, args, network, channels, group, value):
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"""[<network>] [<channel>] <name> [<value>]
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If <value> is given, sets the channel configuration variable for <name>
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to <value> for <channel> on the <network>.
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Otherwise, returns the current channel
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configuration value of <name>. <channel> is only necessary if the
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message isn't sent in the channel itself. More than one channel may
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be given at once by separating them with commas.
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<network> defaults to the current network."""
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if not group._channelValue:
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irc.error(_('That configuration variable is not a channel-specific '
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'configuration variable.'))
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return
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if value is not None:
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for channel in channels:
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assert irc.isChannel(channel)
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# Sets the non-network-specific value, for forward
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# compatibility, ie. this will work even if the owner rolls
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# back Limnoria to an older version.
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# It's also an easy way to support plugins which are not
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# network-aware.
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self._setValue(irc, msg, group.get(channel), value)
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if network != '*':
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# Set the network-specific value
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self._setValue(irc, msg, group.get(':' + network.network).get(channel), value)
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irc.replySuccess()
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else:
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if network == '*':
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network = None
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values = []
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private = None
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for channel in channels:
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(value, private_value) = \
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self._getValue(irc, msg, group, network, channel)
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values.append((channel, value))
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if private_value:
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private = True
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if len(channels) > 1:
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irc.reply('; '.join(['%s: %s' % (channel, value)
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for (channel, value) in values]),
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private=private)
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else:
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irc.reply(values[0][1], private=private)
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channel = wrap(channel, [optional(first(('literal', '*'), 'networkIrc')),
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'channels', 'settableConfigVar',
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additional('text')])
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def network(self, irc, msg, args, network, group, value):
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"""[<network>] <name> [<value>]
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If <value> is given, sets the network configuration variable for <name>
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to <value> for <network>.
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Otherwise, returns the current network configuration value of <name>.
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<network> defaults to the current network."""
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if not group._networkValue:
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irc.error(_('That configuration variable is not a network-specific '
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'configuration variable.'))
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return
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if value is not None:
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self._setValue(irc, msg, group.get(':' + network.network), value)
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irc.replySuccess()
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else:
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values = []
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private = None
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(value, private) = \
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self._getValue(irc, msg, group, network)
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irc.reply(value, private=private)
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network = wrap(network, ['networkIrc', 'settableConfigVar',
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additional('text')])
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@internationalizeDocstring
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def config(self, irc, msg, args, group, value):
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"""<name> [<value>]
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If <value> is given, sets the value of <name> to <value>. Otherwise,
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returns the current value of <name>. You may omit the leading
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"supybot." in the name if you so choose.
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"""
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if value is not None:
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self._setValue(irc, msg, group, value)
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irc.replySuccess()
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else:
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(value, private) = self._getValue(
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irc, msg, group, network=irc,
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channel=msg.channel,
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addGlobal=group._channelValue or group._networkValue)
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irc.reply(value, private=private)
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config = wrap(config, ['settableConfigVar', additional('text')])
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@internationalizeDocstring
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def help(self, irc, msg, args, group):
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"""<name>
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Returns the description of the configuration variable <name>.
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"""
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if hasattr(group, '_help'):
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s = group.help()
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if s:
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if hasattr(group, 'value') and not group._private:
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if msg.channel and \
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msg.channel in group._children:
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globvalue = str(group)
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chanvalue = str(group.get(msg.channel))
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if chanvalue != globvalue:
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s += _(' (Current global value: %s; '
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'current channel value: %s)') % \
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(globvalue, chanvalue)
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else:
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s += _(' (Current value: %s)') % group
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else:
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s += _(' (Current value: %s)') % group
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irc.reply(s)
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else:
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irc.reply(_('That configuration group exists, but seems to '
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'have no help. Try "config list %s" to see if it '
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'has any children values.') % group._name)
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else:
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irc.error(_('%s has no help.') % group._name)
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help = wrap(help, ['configVar'])
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@internationalizeDocstring
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def default(self, irc, msg, args, group):
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"""<name>
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Returns the default value of the configuration variable <name>.
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"""
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v = group.__class__(group._default, '')
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irc.reply(str(v))
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default = wrap(default, ['settableConfigVar'])
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@internationalizeDocstring
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def reload(self, irc, msg, args):
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"""takes no arguments
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Reloads the various configuration files (user database, channel
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database, registry, etc.).
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"""
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_reload() # This was factored out for SIGHUP handling.
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irc.replySuccess()
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reload = wrap(reload, [('checkCapability', 'owner')])
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@internationalizeDocstring
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def export(self, irc, msg, args, filename):
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"""<filename>
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Exports the public variables of your configuration to <filename>.
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If you want to show someone your configuration file, but you don't
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want that person to be able to see things like passwords, etc., this
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command will export a "sanitized" configuration file suitable for
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showing publicly.
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"""
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if not conf.supybot.commands.allowShell():
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# Disallow writing arbitrary files
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irc.error('This command is not available, because '
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'supybot.commands.allowShell is False.', Raise=True)
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registry.close(conf.supybot, filename, private=False)
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irc.replySuccess()
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export = wrap(export, [('checkCapability', 'owner'), 'filename'])
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@internationalizeDocstring
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def setdefault(self, irc, msg, args, group):
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"""<name>
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Resets the configuration variable <name> to its default value.
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"""
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v = str(group.__class__(group._default, ''))
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self._setValue(irc, msg, group, v)
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irc.replySuccess()
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setdefault = wrap(setdefault, ['settableConfigVar'])
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Class = Config
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# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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