### # Copyright (c) 2002-2004, Jeremiah Fincher # 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. ### """ Provides commands available only on Unix. """ __revision__ = "$Id$" import supybot.plugins as plugins import os import re import pwd import sys import crypt import errno import popen2 import random import select import string import struct import supybot.conf as conf import supybot.utils as utils import supybot.privmsgs as privmsgs import supybot.registry as registry import supybot.callbacks as callbacks def configure(advanced): from supybot.questions import output, expect, anything, something, yn conf.registerPlugin('Unix', True) output("""The "progstats" command can reveal potentially sensitive information about your machine. Here's an example of its output: %s\n""" % progstats()) if yn('Would you like to disable this command for non-owner users?', default=True): conf.supybot.commands.disabled().add('Unix.progstats') def progstats(): pw = pwd.getpwuid(os.getuid()) response = 'Process ID %s running as user "%s" and as group "%s" ' \ 'from directory "%s" with the command line "%s". ' \ 'Running on Python %s.' % \ (os.getpid(), pw[0], pw[3], os.getcwd(), ' '.join(sys.argv), sys.version.translate(string.ascii, '\r\n')) return response class TimeoutError(IOError): pass def pipeReadline(fd, timeout=2): (r, _, _) = select.select([fd], [], [], timeout) if r: return r[0].readline() else: raise TimeoutError conf.registerPlugin('Unix') conf.registerGroup(conf.supybot.plugins.Unix, 'fortune') conf.registerGlobalValue(conf.supybot.plugins.Unix.fortune, 'command', registry.String(utils.findBinaryInPath('fortune') or '', """Determines what command will be called for the fortune command.""")) conf.registerGlobalValue(conf.supybot.plugins.Unix.fortune, 'short', registry.Boolean(True, """Determines whether only short fortunes will be used if possible. This sends the -s option to the fortune program.""")) conf.registerGlobalValue(conf.supybot.plugins.Unix.fortune, 'equal', registry.Boolean(True, """Determines whether fortune will give equal weight to the different fortune databases. If false, then larger databases will be given more weight. This sends the -e option to the fortune program.""")) conf.registerGlobalValue(conf.supybot.plugins.Unix.fortune, 'offensive', registry.Boolean(False, """Determines whether fortune will retrieve offensive fortunes along with the normal fortunes. This sends the -o option to the fortune program.""")) conf.registerGlobalValue(conf.supybot.plugins.Unix.fortune, 'files', registry.SpaceSeparatedListOfStrings([], """Determines what specific file (if any) will be used with the fortune command; if none is given, the system-wide default will be used. Do note that this fortune file must be placed with the rest of your system's fortune files.""")) conf.registerGroup(conf.supybot.plugins.Unix, 'spell') conf.registerGlobalValue(conf.supybot.plugins.Unix.spell, 'command', registry.String(utils.findBinaryInPath('aspell') or \ utils.findBinaryInPath('ispell') or '', """Determines what command will be called for the spell command.""")) conf.registerGroup(conf.supybot.plugins.Unix, 'wtf') conf.registerGlobalValue(conf.supybot.plugins.Unix.wtf, 'command', registry.String(utils.findBinaryInPath('wtf') or '', """Determines what command will be called for the wtf command.""")) class Unix(callbacks.Privmsg): def errno(self, irc, msg, args): """<error number or code> Returns the number of an errno code, or the errno code of a number. """ s = privmsgs.getArgs(args) try: i = int(s) name = errno.errorcode[i] except ValueError: name = s.upper() try: i = getattr(errno, name) except AttributeError: irc.reply('I can\'t find the errno number for that code.') return except KeyError: name = '(unknown)' irc.reply('%s (#%s): %s' % (name, i, os.strerror(i))) def progstats(self, irc, msg, args): """takes no arguments Returns various unix-y information on the running supybot process. """ irc.reply(progstats()) def pid(self, irc, msg, args): """takes no arguments Returns the current pid of the process for this Supybot. """ irc.reply(str(os.getpid()), private=True) pid = privmsgs.checkCapability(pid, 'owner') _cryptre = re.compile(r'[./0-9A-Za-z]') def crypt(self, irc, msg, args): """<password> [<salt>] Returns the resulting of doing a crypt() on <password> If <salt> is not given, uses a random salt. If running on a glibc2 system, prepending '$1$' to your salt will cause crypt to return an MD5sum based crypt rather than the standard DES based crypt. """ def makeSalt(): s = '\x00' while self._cryptre.sub('', s) != '': s = struct.pack('<h', random.randrange(2**16)) return s (password, salt) = privmsgs.getArgs(args, optional=1) if salt == '': salt = makeSalt() irc.reply(crypt.crypt(password, salt)) def spell(self, irc, msg, args): """<word> Returns the result of passing <word> to aspell/ispell. The results shown are sorted from best to worst in terms of being a likely match for the spelling of <word>. """ # We are only checking the first word spellCmd = self.registryValue('spell.command') if not spellCmd: irc.error('A spell checking command doesn\'t seem to be ' 'installed on this computer. If one is installed, ' 'reconfigure supybot.plugins.Unix.spell.command ' 'appropriately.', Raise=True) word = privmsgs.getArgs(args) if word and not word[0].isalpha(): irc.error('<word> must begin with an alphabet character.') return if ' ' in word: irc.error('Spaces aren\'t allowed in the word.') return (r, w) = popen2.popen4([spellCmd, '-a']) try: s = r.readline() # Banner, hopefully. if 'sorry' in s.lower(): irc.error(s) return w.write(word) w.write('\n') w.flush() try: line = pipeReadline(r) # aspell puts extra whitespace, ignore it while not line.strip('\r\n'): line = pipeReadline(r) except TimeoutError: irc.error('The spell command timed out.') return finally: r.close() w.close() # parse the output if line[0] in '*+': resp = '"%s" may be spelled correctly.' % word elif line[0] == '#': resp = 'I could not find an alternate spelling for "%s"' % word elif line[0] == '&': matches = line.split(':')[1].strip() resp = 'Possible spellings for %r: %s.' % \ (word, utils.commaAndify(matches.split(', '))) else: resp = 'Something unexpected was seen in the [ai]spell output.' irc.reply(resp) def fortune(self, irc, msg, args): """takes no arguments Returns a fortune from the *nix fortune program. """ fortuneCmd = self.registryValue('fortune.command') if fortuneCmd: args = [fortuneCmd] if self.registryValue('fortune.short'): args.append('-s') if self.registryValue('fortune.equal'): args.append('-e') if self.registryValue('fortune.offensive'): args.append('-a') args.extend(self.registryValue('fortune.files')) (r, w) = popen2.popen4(args) try: lines = r.readlines() lines = map(str.rstrip, lines) lines = filter(None, lines) irc.replies(lines, joiner=' ') finally: w.close() r.close() else: irc.error('I couldn\'t find the fortune command on this system. ' 'If it is installed on this system, reconfigure the ' 'supybot.plugins.Unix.fortune.command configuration ' 'variable appropriately.') def wtf(self, irc, msg, args): """[is] <something> Returns wtf <something> is. 'wtf' is a *nix command that first appeared in NetBSD 1.5. In most *nices, it's available in some sort of 'bsdgames' package. """ wtfCmd = self.registryValue('wtf.command') if wtfCmd: if args and args[0] == 'is': del args[0] something = privmsgs.getArgs(args) something = something.rstrip('?') (r, w) = popen2.popen4([wtfCmd, something]) try: response = utils.normalizeWhitespace(r.readline().strip()) irc.reply(response) finally: r.close() w.close() else: irc.error('I couldn\'t find the wtf command on this system. ' 'If it is installed on this system, reconfigure the ' 'supybot.plugins.Unix.wtf.command configuration ' 'variable appropriately.') Class = Unix # vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: