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