mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-12-27 21:22:39 +01:00
833af36b08
Starting with this commit, there should be no "original" text in READMEs. Instead, the entire text should be in docstrings, and READMEs should be automatically generated from these docstrings. Motivation: * The same help is available both via IRC and in the README (although the README can be more detailed, as only the first paragraph will be shown on IRC) * This will allow auto-generating plugin help on docs.limnoria.net using the same content as the README, as it's sourced from the docstrings Additionally, this converts all READMEs from Markdown to ReST, because the documentation already uses ReST, and other docstrings in the codebase are in ReST for this reason.
469 lines
20 KiB
Python
469 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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# 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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