mirror of https://github.com/Mikaela/Limnoria.git
470 lines
20 KiB
Python
470 lines
20 KiB
Python
###
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# Copyright (c) 2002-2005, Jeremiah Fincher
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# Copyright (c) 2008-2010, James McCoy
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# Copyright (c) 2010-2021, Valentin Lorentz
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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 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 random
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import select
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import struct
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import subprocess
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import shlex
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import supybot.conf as conf
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import supybot.utils as utils
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from supybot.commands import *
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import supybot.utils.minisix as minisix
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import supybot.plugins as plugins
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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('Unix')
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def checkAllowShell(irc):
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if not conf.supybot.commands.allowShell():
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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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_progstats_endline_remover = utils.str.MultipleRemover('\r\n')
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def progstats():
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pw = pwd.getpwuid(os.getuid())
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response = format('Process ID %i running as user %q and as group %q '
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'from directory %q with the command line %q. '
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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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_progstats_endline_remover(sys.version))
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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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class Unix(callbacks.Plugin):
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"""Provides Utilities for Unix-like systems."""
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threaded = True
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@internationalizeDocstring
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def errno(self, irc, msg, args, s):
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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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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(format(_('%s (#%i): %s'), name, i, os.strerror(i)))
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errno = wrap(errno, ['something'])
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@internationalizeDocstring
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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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@internationalizeDocstring
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def pid(self, irc, msg, args):
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"""takes no arguments
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Returns the current pid of the process for this Supybot.
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"""
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irc.reply(format('%i', os.getpid()), private=True)
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pid = wrap(pid, [('checkCapability', 'owner')])
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_cryptre = re.compile(b'[./0-9A-Za-z]')
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@internationalizeDocstring
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def crypt(self, irc, msg, args, password, salt):
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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 = b'\x00'
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while self._cryptre.sub(b'', s) != b'':
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s = struct.pack('<h', random.randrange(-(2**15), 2**15))
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return s
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if not salt:
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salt = makeSalt().decode()
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irc.reply(crypt.crypt(password, salt))
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crypt = wrap(crypt, ['something', additional('something')])
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@internationalizeDocstring
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def spell(self, irc, msg, args, word):
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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(_('The spell checking command is not configured. If one '
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'is installed, reconfigure '
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'supybot.plugins.Unix.spell.command appropriately.'),
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Raise=True)
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spellLang = self.registryValue('spell.language') or 'en'
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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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try:
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inst = subprocess.Popen([spellCmd, '-l', spellLang, '-a'], close_fds=True,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=subprocess.PIPE)
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except OSError as e:
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irc.error(e, Raise=True)
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ret = inst.poll()
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if ret is not None:
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s = inst.stderr.readline().decode('utf8')
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if not s:
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s = inst.stdout.readline().decode('utf8')
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s = s.rstrip('\r\n')
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s = s.lstrip('Error: ')
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irc.error(s, Raise=True)
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(out, err) = inst.communicate(word.encode())
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inst.wait()
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lines = [x.decode('utf8') for x in out.splitlines() if x]
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lines.pop(0) # Banner
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if not lines:
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irc.error(_('No results found.'), Raise=True)
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line = lines.pop(0)
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line2 = ''
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if lines:
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line2 = lines.pop(0)
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# parse the output
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# aspell will sometimes list spelling suggestions after a '*' or '+'
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# line for complex words.
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if line[0] in '*+' and line2:
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line = line2
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if line[0] in '*+':
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resp = format(_('%q may be spelled correctly.'), word)
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elif line[0] == '#':
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resp = format(_('I could not find an alternate spelling for %q'),
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word)
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elif line[0] == '&':
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matches = line.split(':')[1].strip()
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resp = format(_('Possible spellings for %q: %L.'),
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word, 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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spell = thread(wrap(spell, ['something']))
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@internationalizeDocstring
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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 Unix fortune program.
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"""
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channel = msg.channel
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network = irc.network
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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', channel, network):
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args.append('-s')
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if self.registryValue('fortune.equal', channel, network):
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args.append('-e')
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if self.registryValue('fortune.offensive', channel, network):
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args.append('-a')
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args.extend(self.registryValue('fortune.files', channel, network))
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try:
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with open(os.devnull) as null:
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inst = subprocess.Popen(args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=null)
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except OSError as e:
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irc.error(_('It seems the configured fortune command was '
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'not available.'), Raise=True)
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(out, err) = inst.communicate()
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inst.wait()
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if minisix.PY3:
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lines = [i.decode('utf-8').rstrip() for i in out.splitlines()]
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lines = list(map(str, lines))
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else:
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lines = out.splitlines()
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lines = list(map(str.rstrip, lines))
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lines = filter(None, lines)
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irc.replies(lines, joiner=' ')
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else:
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irc.error(_('The fortune command is not configured. If fortune is '
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'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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@internationalizeDocstring
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def wtf(self, irc, msg, args, foo, something):
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"""[is] <something>
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Returns wtf <something> is. 'wtf' is a Unix command that first
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appeared in NetBSD 1.5. In most Unices, 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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something = something.rstrip('?')
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try:
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with open(os.devnull, 'r+') as null:
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inst = subprocess.Popen([wtfCmd, something],
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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stdin=null)
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except OSError:
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irc.error(_('It seems the configured wtf command was not '
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'available.'), Raise=True)
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(out, foo) = inst.communicate()
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inst.wait()
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if out:
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response = out.decode('utf8').splitlines()[0].strip()
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response = utils.str.normalizeWhitespace(response)
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irc.reply(response)
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else:
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irc.error(_('The wtf command is not configured. If it is installed '
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'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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wtf = thread(wrap(wtf, [optional(('literal', ['is'])), 'something']))
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def _make_ping(command):
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def f(self, irc, msg, args, optlist, host):
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"""[--c <count>] [--i <interval>] [--t <ttl>] [--W <timeout>] [--4|--6] <host or ip>
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Sends an ICMP echo request to the specified host.
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The arguments correspond with those listed in ping(8). --c is
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limited to 10 packets or less (default is 5). --i is limited to 5
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or less. --W is limited to 10 or less.
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--4 and --6 can be used if and only if the system has a unified
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ping command.
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"""
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pingCmd = self.registryValue(registry.join([command, 'command']))
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if not pingCmd:
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irc.error('The ping command is not configured. If one '
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'is installed, reconfigure '
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'supybot.plugins.Unix.%s.command appropriately.' %
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command, Raise=True)
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else:
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try: host = host.group(0)
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except AttributeError: pass
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args = [pingCmd]
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for opt, val in optlist:
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if opt == 'c' and val > 10: val = 10
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if opt == 'i' and val > 5: val = 5
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if opt == 'W' and val > 10: val = 10
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args.append('-%s' % opt)
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if opt not in ('4', '6'):
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args.append(str(val))
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if '-c' not in args:
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args.append('-c')
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args.append(str(self.registryValue('ping.defaultCount')))
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args.append(host)
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try:
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with open(os.devnull) as null:
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inst = subprocess.Popen(args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=null)
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except OSError as e:
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irc.error('It seems the configured ping command was '
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'not available (%s).' % e, Raise=True)
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result = inst.communicate()
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if result[1]: # stderr
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irc.error(' '.join(result[1].decode('utf8').split()))
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else:
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response = result[0].decode('utf8').split("\n");
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if response[1]:
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irc.reply(' '.join(response[1].split()[3:5]).split(':')[0]
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+ ': ' + ' '.join(response[-3:]))
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else:
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irc.reply(' '.join(response[0].split()[1:3])
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+ ': ' + ' '.join(response[-3:]))
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f.__name__ = command
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_hostExpr = re.compile(r'^[a-z0-9][a-z0-9\.-]*[a-z0-9]$', re.I)
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return thread(wrap(f, [getopts({'c':'positiveInt','i':'float',
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't':'positiveInt','W':'positiveInt',
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'4':'', '6':''}),
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first('ip', ('matches', _hostExpr, 'Invalid hostname'))]))
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ping = _make_ping('ping')
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ping6 = _make_ping('ping6')
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def sysuptime(self, irc, msg, args):
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"""takes no arguments
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Returns the uptime from the system the bot is running on.
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"""
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uptimeCmd = self.registryValue('sysuptime.command')
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if uptimeCmd:
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args = [uptimeCmd]
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try:
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with open(os.devnull) as null:
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inst = subprocess.Popen(args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=null)
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except OSError as e:
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irc.error('It seems the configured uptime command was '
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'not available.', Raise=True)
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(out, err) = inst.communicate()
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inst.wait()
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lines = out.splitlines()
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lines = [x.decode('utf8').rstrip() for x in lines]
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lines = filter(None, lines)
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irc.replies(lines, joiner=' ')
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else:
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irc.error('The uptime command is not configured. If uptime is '
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'installed on this system, reconfigure the '
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'supybot.plugins.Unix.sysuptime.command configuration '
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'variable appropriately.')
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def sysuname(self, irc, msg, args):
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"""takes no arguments
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Returns the uname -a from the system the bot is running on.
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"""
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unameCmd = self.registryValue('sysuname.command')
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if unameCmd:
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args = [unameCmd, '-a']
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try:
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with open(os.devnull) as null:
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inst = subprocess.Popen(args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=null)
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except OSError as e:
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irc.error('It seems the configured uptime command was '
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'not available.', Raise=True)
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(out, err) = inst.communicate()
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inst.wait()
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lines = out.splitlines()
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lines = [x.decode('utf8').rstrip() for x in lines]
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lines = filter(None, lines)
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irc.replies(lines, joiner=' ')
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else:
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irc.error('The uname command is not configured. If uname is '
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'installed on this system, reconfigure the '
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'supybot.plugins.Unix.sysuname.command configuration '
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'variable appropriately.')
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def call(self, irc, msg, args, text):
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"""<command to call with any arguments>
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Calls any command available on the system, and returns its output.
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Requires owner capability.
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Note that being restricted to owner, this command does not do any
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sanity checking on input/output. So it is up to you to make sure
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you don't run anything that will spamify your channel or that
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will bring your machine to its knees.
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"""
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checkAllowShell(irc)
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self.log.info('Unix: running command "%s" for %s/%s', text, msg.nick,
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irc.network)
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args = shlex.split(text)
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try:
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with open(os.devnull) as null:
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inst = subprocess.Popen(args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=null)
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except OSError as e:
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irc.error('It seems the requested command was '
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'not available (%s).' % e, Raise=True)
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result = inst.communicate()
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if result[1]: # stderr
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irc.error(' '.join(result[1].decode('utf8').split()))
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if result[0]: # stdout
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response = result[0].decode('utf8').splitlines()
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response = [l for l in response if l]
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irc.replies(response)
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call = thread(wrap(call, ["owner", "text"]))
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def shell(self, irc, msg, args, text):
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"""<command to call with any arguments>
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Calls any command available on the system using the shell
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specified by the SHELL environment variable, and returns its
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output.
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Requires owner capability.
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Note that being restricted to owner, this command does not do any
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sanity checking on input/output. So it is up to you to make sure
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you don't run anything that will spamify your channel or that
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will bring your machine to its knees.
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"""
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checkAllowShell(irc)
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self.log.info('Unix: running command "%s" for %s/%s', text, msg.nick,
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irc.network)
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try:
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with open(os.devnull) as null:
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inst = subprocess.Popen(text,
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shell=True,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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stdin=null)
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except OSError as e:
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irc.error('It seems the shell (%s) was not available (%s)' %
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(os.getenv('SHELL'), e), Raise=True)
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result = inst.communicate()
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if result[1]: # stderr
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irc.error(' '.join(result[1].decode('utf8').split()))
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if result[0]: # stdout
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response = result[0].decode('utf8').splitlines()
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response = [l for l in response if l]
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irc.replies(response)
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shell = thread(wrap(shell, ["owner", "text"]))
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Class = Unix
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# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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