mirror of
https://github.com/Mikaela/Limnoria.git
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677 lines
21 KiB
Python
677 lines
21 KiB
Python
###
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# Copyright (c) 2002-2005, Jeremiah Fincher
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# Copyright (c) 2011, James Vega
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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 a great number of useful utility functions for IRC. Things to muck
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around with hostmasks, set bold or color on strings, IRC-case-insensitive
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dicts, a nick class to handle nicks (so comparisons and hashing and whatnot
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work in an IRC-case-insensitive fashion), and numerous other things.
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"""
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import re
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import time
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import random
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import string
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import textwrap
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from cStringIO import StringIO as sio
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import supybot.utils as utils
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def debug(s, *args):
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"""Prints a debug string. Most likely replaced by our logging debug."""
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print '***', s % args
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userHostmaskRe = re.compile(r'^\S+!\S+@\S+$')
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def isUserHostmask(s):
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"""Returns whether or not the string s is a valid User hostmask."""
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return userHostmaskRe.match(s) is not None
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def isServerHostmask(s):
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"""s => bool
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Returns True if s is a valid server hostmask."""
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return not isUserHostmask(s)
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def nickFromHostmask(hostmask):
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"""hostmask => nick
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Returns the nick from a user hostmask."""
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assert isUserHostmask(hostmask)
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return splitHostmask(hostmask)[0]
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def userFromHostmask(hostmask):
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"""hostmask => user
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Returns the user from a user hostmask."""
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assert isUserHostmask(hostmask)
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return splitHostmask(hostmask)[1]
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def hostFromHostmask(hostmask):
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"""hostmask => host
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Returns the host from a user hostmask."""
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assert isUserHostmask(hostmask)
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return splitHostmask(hostmask)[2]
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def splitHostmask(hostmask):
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"""hostmask => (nick, user, host)
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Returns the nick, user, host of a user hostmask."""
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assert isUserHostmask(hostmask)
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nick, rest = hostmask.split('!', 1)
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user, host = rest.split('@', 1)
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return (intern(nick), intern(user), intern(host))
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def joinHostmask(nick, ident, host):
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"""nick, user, host => hostmask
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Joins the nick, ident, host into a user hostmask."""
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assert nick and ident and host
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return intern('%s!%s@%s' % (nick, ident, host))
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_rfc1459trans = string.maketrans(string.ascii_uppercase + r'\[]~',
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string.ascii_lowercase + r'|{}^')
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def toLower(s, casemapping=None):
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"""s => s
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Returns the string s lowered according to IRC case rules."""
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if casemapping is None or casemapping == 'rfc1459':
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return s.translate(_rfc1459trans)
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elif casemapping == 'ascii': # freenode
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return s.lower()
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else:
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raise ValueError, 'Invalid casemapping: %r' % casemapping
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def strEqual(nick1, nick2):
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"""s1, s2 => bool
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Returns True if nick1 == nick2 according to IRC case rules."""
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assert isinstance(nick1, basestring)
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assert isinstance(nick2, basestring)
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return toLower(nick1) == toLower(nick2)
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nickEqual = strEqual
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_nickchars = r'[]\`_^{|}'
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nickRe = re.compile(r'^[A-Za-z%s][-0-9A-Za-z%s]*$'
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% (re.escape(_nickchars), re.escape(_nickchars)))
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def isNick(s, strictRfc=True, nicklen=None):
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"""s => bool
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Returns True if s is a valid IRC nick."""
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if strictRfc:
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ret = bool(nickRe.match(s))
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if ret and nicklen is not None:
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ret = len(s) <= nicklen
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return ret
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else:
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return not isChannel(s) and \
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not isUserHostmask(s) and \
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not ' ' in s and not '!' in s
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def isChannel(s, chantypes='#&+!', channellen=50):
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"""s => bool
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Returns True if s is a valid IRC channel name."""
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return s and \
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',' not in s and \
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'\x07' not in s and \
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s[0] in chantypes and \
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len(s) <= channellen and \
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len(s.split(None, 1)) == 1
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_patternCache = utils.structures.CacheDict(1000)
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def _hostmaskPatternEqual(pattern, hostmask):
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try:
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return _patternCache[pattern](hostmask) is not None
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except KeyError:
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# We make our own regexps, rather than use fnmatch, because fnmatch's
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# case-insensitivity is not IRC's case-insensitity.
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fd = sio()
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for c in pattern:
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if c == '*':
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fd.write('.*')
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elif c == '?':
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fd.write('.')
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elif c in '[{':
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fd.write('[[{]')
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elif c in '}]':
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fd.write(r'[}\]]')
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elif c in '|\\':
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fd.write(r'[|\\]')
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elif c in '^~':
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fd.write('[~^]')
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else:
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fd.write(re.escape(c))
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fd.write('$')
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f = re.compile(fd.getvalue(), re.I).match
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_patternCache[pattern] = f
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return f(hostmask) is not None
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_hostmaskPatternEqualCache = utils.structures.CacheDict(1000)
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def hostmaskPatternEqual(pattern, hostmask):
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"""pattern, hostmask => bool
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Returns True if hostmask matches the hostmask pattern pattern."""
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try:
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return _hostmaskPatternEqualCache[(pattern, hostmask)]
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except KeyError:
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b = _hostmaskPatternEqual(pattern, hostmask)
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_hostmaskPatternEqualCache[(pattern, hostmask)] = b
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return b
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def banmask(hostmask):
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"""Returns a properly generic banning hostmask for a hostmask.
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>>> banmask('nick!user@host.domain.tld')
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'*!*@*.domain.tld'
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>>> banmask('nick!user@10.0.0.1')
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'*!*@10.0.0.*'
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"""
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assert isUserHostmask(hostmask)
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host = hostFromHostmask(hostmask)
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if utils.net.isIPV4(host):
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L = host.split('.')
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L[-1] = '*'
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return '*!*@' + '.'.join(L)
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elif utils.net.isIPV6(host):
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L = host.split(':')
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L[-1] = '*'
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return '*!*@' + ':'.join(L)
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else:
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if len(host.split('.')) > 2: # If it is a subdomain
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return '*!*@*%s' % host[host.find('.'):]
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else:
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return '*!*@' + host
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_plusRequireArguments = 'ovhblkqe'
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_minusRequireArguments = 'ovhbkqe'
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def separateModes(args):
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"""Separates modelines into single mode change tuples. Basically, you
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should give it the .args of a MODE IrcMsg.
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Examples:
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>>> separateModes(['+ooo', 'jemfinch', 'StoneTable', 'philmes'])
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[('+o', 'jemfinch'), ('+o', 'StoneTable'), ('+o', 'philmes')]
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>>> separateModes(['+o-o', 'jemfinch', 'PeterB'])
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[('+o', 'jemfinch'), ('-o', 'PeterB')]
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>>> separateModes(['+s-o', 'test'])
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[('+s', None), ('-o', 'test')]
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>>> separateModes(['+sntl', '100'])
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[('+s', None), ('+n', None), ('+t', None), ('+l', 100)]
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"""
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if not args:
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return []
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modes = args[0]
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assert modes[0] in '+-', 'Invalid args: %r' % args
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args = list(args[1:])
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ret = []
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for c in modes:
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if c in '+-':
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last = c
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else:
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if last == '+':
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requireArguments = _plusRequireArguments
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else:
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requireArguments = _minusRequireArguments
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if c in requireArguments:
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arg = args.pop(0)
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try:
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arg = int(arg)
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except ValueError:
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pass
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ret.append((last + c, arg))
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else:
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ret.append((last + c, None))
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return ret
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def joinModes(modes):
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"""[(mode, targetOrNone), ...] => args
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Joins modes of the same form as returned by separateModes."""
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args = []
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modeChars = []
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currentMode = '\x00'
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for (mode, arg) in modes:
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if arg is not None:
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args.append(arg)
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if not mode.startswith(currentMode):
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currentMode = mode[0]
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modeChars.append(mode[0])
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modeChars.append(mode[1])
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args.insert(0, ''.join(modeChars))
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return args
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def bold(s):
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"""Returns the string s, bolded."""
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return '\x02%s\x02' % s
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def reverse(s):
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"""Returns the string s, reverse-videoed."""
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return '\x16%s\x16' % s
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def underline(s):
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"""Returns the string s, underlined."""
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return '\x1F%s\x1F' % s
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# Definition of mircColors dictionary moved below because it became an IrcDict.
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def mircColor(s, fg=None, bg=None):
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"""Returns s with the appropriate mIRC color codes applied."""
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if fg is None and bg is None:
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return s
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elif bg is None:
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fg = mircColors[str(fg)]
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return '\x03%s%s\x03' % (fg.zfill(2), s)
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elif fg is None:
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bg = mircColors[str(bg)]
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# According to the mirc color doc, a fg color MUST be specified if a
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# background color is specified. So, we'll specify 00 (white) if the
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# user doesn't specify one.
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return '\x0300,%s%s\x03' % (bg.zfill(2), s)
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else:
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fg = mircColors[str(fg)]
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bg = mircColors[str(bg)]
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# No need to zfill fg because the comma delimits.
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return '\x03%s,%s%s\x03' % (fg, bg.zfill(2), s)
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def canonicalColor(s, bg=False, shift=0):
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"""Assigns an (fg, bg) canonical color pair to a string based on its hash
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value. This means it might change between Python versions. This pair can
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be used as a *parameter to mircColor. The shift parameter is how much to
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right-shift the hash value initially.
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"""
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h = hash(s) >> shift
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fg = h % 14 + 2 # The + 2 is to rule out black and white.
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if bg:
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bg = (h >> 4) & 3 # The 5th, 6th, and 7th least significant bits.
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if fg < 8:
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bg += 8
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else:
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bg += 2
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return (fg, bg)
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else:
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return (fg, None)
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def stripBold(s):
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"""Returns the string s, with bold removed."""
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return s.replace('\x02', '')
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_stripColorRe = re.compile(r'\x03(?:\d{1,2},\d{1,2}|\d{1,2}|,\d{1,2}|)')
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def stripColor(s):
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"""Returns the string s, with color removed."""
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return _stripColorRe.sub('', s)
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def stripReverse(s):
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"""Returns the string s, with reverse-video removed."""
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return s.replace('\x16', '')
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def stripUnderline(s):
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"""Returns the string s, with underlining removed."""
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return s.replace('\x1f', '').replace('\x1F', '')
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def stripFormatting(s):
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"""Returns the string s, with all formatting removed."""
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# stripColor has to go first because of some strings, check the tests.
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s = stripColor(s)
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s = stripBold(s)
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s = stripReverse(s)
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s = stripUnderline(s)
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return s.replace('\x0f', '').replace('\x0F', '')
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class FormatContext(object):
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def __init__(self):
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self.reset()
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def reset(self):
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self.fg = None
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self.bg = None
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self.bold = False
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self.reverse = False
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self.underline = False
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def start(self, s):
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"""Given a string, starts all the formatters in this context."""
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if self.bold:
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s = '\x02' + s
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if self.reverse:
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s = '\x16' + s
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if self.underline:
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s = '\x1f' + s
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if self.fg is not None or self.bg is not None:
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s = mircColor(s, fg=self.fg, bg=self.bg)[:-1] # Remove \x03.
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return s
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def end(self, s):
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"""Given a string, ends all the formatters in this context."""
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if self.bold or self.reverse or \
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self.fg or self.bg or self.underline:
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# Should we individually end formatters?
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s += '\x0f'
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return s
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class FormatParser(object):
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def __init__(self, s):
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self.fd = sio(s)
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self.last = None
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def getChar(self):
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if self.last is not None:
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c = self.last
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self.last = None
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return c
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else:
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return self.fd.read(1)
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def ungetChar(self, c):
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self.last = c
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def parse(self):
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context = FormatContext()
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c = self.getChar()
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while c:
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if c == '\x02':
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context.bold = not context.bold
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elif c == '\x16':
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context.reverse = not context.reverse
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elif c == '\x1f':
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context.underline = not context.underline
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elif c == '\x0f':
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context.reset()
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elif c == '\x03':
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self.getColor(context)
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c = self.getChar()
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return context
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def getInt(self):
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i = 0
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setI = False
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c = self.getChar()
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while c.isdigit() and i < 100:
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setI = True
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i *= 10
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i += int(c)
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c = self.getChar()
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self.ungetChar(c)
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if setI:
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return i
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else:
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return None
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def getColor(self, context):
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context.fg = self.getInt()
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c = self.getChar()
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if c == ',':
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context.bg = self.getInt()
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def wrap(s, length):
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processed = []
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chunks = textwrap.wrap(s, length)
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context = None
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for chunk in chunks:
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if context is not None:
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chunk = context.start(chunk)
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context = FormatParser(chunk).parse()
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processed.append(context.end(chunk))
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return processed
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def isValidArgument(s):
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"""Returns whether s is strictly a valid argument for an IRC message."""
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return '\r' not in s and '\n' not in s and '\x00' not in s
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def safeArgument(s):
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"""If s is unsafe for IRC, returns a safe version."""
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if isinstance(s, unicode):
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s = s.encode('utf-8')
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elif not isinstance(s, basestring):
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debug('Got a non-string in safeArgument: %r', s)
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s = str(s)
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if isValidArgument(s):
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return s
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else:
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return repr(s)
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def replyTo(msg):
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"""Returns the appropriate target to send responses to msg."""
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if isChannel(msg.args[0]):
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return msg.args[0]
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else:
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return msg.nick
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def dccIP(ip):
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"""Returns an IP in the proper for DCC."""
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assert utils.net.isIPV4(ip), \
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'argument must be a string ip in xxx.yyy.zzz.www format.'
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i = 0
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x = 256**3
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for quad in ip.split('.'):
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i += int(quad)*x
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x /= 256
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return i
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def unDccIP(i):
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"""Takes an integer DCC IP and return a normal string IP."""
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assert isinstance(i, (int, long)), '%r is not an number.' % i
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L = []
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while len(L) < 4:
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L.append(i % 256)
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i /= 256
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L.reverse()
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return '.'.join(utils.iter.imap(str, L))
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class IrcString(str):
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"""This class does case-insensitive comparison and hashing of nicks."""
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def __new__(cls, s=''):
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x = super(IrcString, cls).__new__(cls, s)
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x.lowered = toLower(x)
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return x
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def __eq__(self, s):
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try:
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return toLower(s) == self.lowered
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except:
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return False
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def __ne__(self, s):
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return not (self == s)
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def __hash__(self):
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return hash(self.lowered)
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class IrcDict(utils.InsensitivePreservingDict):
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"""Subclass of dict to make key comparison IRC-case insensitive."""
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def key(self, s):
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if s is not None:
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s = toLower(s)
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return s
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class CallableValueIrcDict(IrcDict):
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def __getitem__(self, k):
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v = super(IrcDict, self).__getitem__(k)
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if callable(v):
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v = v()
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return v
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class IrcSet(utils.NormalizingSet):
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"""A sets.Set using IrcStrings instead of regular strings."""
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def normalize(self, s):
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return IrcString(s)
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|
|
|
def __reduce__(self):
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return (self.__class__, (list(self),))
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|
|
|
|
|
class FloodQueue(object):
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timeout = 0
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def __init__(self, timeout=None, queues=None):
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if timeout is not None:
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self.timeout = timeout
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|
if queues is None:
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queues = IrcDict()
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|
self.queues = queues
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|
|
|
def __repr__(self):
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|
return 'FloodQueue(timeout=%r, queues=%s)' % (self.timeout,
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repr(self.queues))
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|
|
|
def key(self, msg):
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# This really ought to be configurable without subclassing, but for
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|
# now, it works.
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# used to be msg.user + '@' + msg.host but that was too easily abused.
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|
return msg.host
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|
|
|
def getTimeout(self):
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|
if callable(self.timeout):
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|
return self.timeout()
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|
else:
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|
return self.timeout
|
|
|
|
def _getQueue(self, msg, insert=True):
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|
key = self.key(msg)
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|
try:
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|
return self.queues[key]
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|
except KeyError:
|
|
if insert:
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|
# python--
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|
# instancemethod.__repr__ calls the instance.__repr__, which
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|
# means that our __repr__ calls self.queues.__repr__, which
|
|
# calls structures.TimeoutQueue.__repr__, which calls
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|
# getTimeout.__repr__, which calls our __repr__, which calls...
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|
getTimeout = lambda : self.getTimeout()
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|
q = utils.structures.TimeoutQueue(getTimeout)
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|
self.queues[key] = q
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|
return q
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|
else:
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|
return None
|
|
|
|
def enqueue(self, msg, what=None):
|
|
if what is None:
|
|
what = msg
|
|
q = self._getQueue(msg)
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|
q.enqueue(what)
|
|
|
|
def len(self, msg):
|
|
q = self._getQueue(msg, insert=False)
|
|
if q is not None:
|
|
return len(q)
|
|
else:
|
|
return 0
|
|
|
|
def has(self, msg, what=None):
|
|
q = self._getQueue(msg, insert=False)
|
|
if q is not None:
|
|
if what is None:
|
|
what = msg
|
|
for elt in q:
|
|
if elt == what:
|
|
return True
|
|
return False
|
|
|
|
|
|
mircColors = IrcDict({
|
|
'white': '0',
|
|
'black': '1',
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|
'blue': '2',
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|
'green': '3',
|
|
'red': '4',
|
|
'brown': '5',
|
|
'purple': '6',
|
|
'orange': '7',
|
|
'yellow': '8',
|
|
'light green': '9',
|
|
'teal': '10',
|
|
'light blue': '11',
|
|
'dark blue': '12',
|
|
'pink': '13',
|
|
'dark grey': '14',
|
|
'light grey': '15',
|
|
'dark gray': '14',
|
|
'light gray': '15',
|
|
})
|
|
|
|
# We'll map integers to their string form so mircColor is simpler.
|
|
for (k, v) in mircColors.items():
|
|
if k is not None: # Ignore empty string for None.
|
|
sv = str(v)
|
|
mircColors[sv] = sv
|
|
|
|
def standardSubstitute(irc, msg, text, env=None):
|
|
"""Do the standard set of substitutions on text, and return it"""
|
|
if isChannel(msg.args[0]):
|
|
channel = msg.args[0]
|
|
else:
|
|
channel = 'somewhere'
|
|
def randInt():
|
|
return str(random.randint(-1000, 1000))
|
|
def randDate():
|
|
t = pow(2,30)*random.random()+time.time()/4.0
|
|
return time.ctime(t)
|
|
def randNick():
|
|
if channel != 'somewhere':
|
|
L = list(irc.state.channels[channel].users)
|
|
if len(L) > 1:
|
|
n = msg.nick
|
|
while n == msg.nick:
|
|
n = utils.iter.choice(L)
|
|
return n
|
|
else:
|
|
return msg.nick
|
|
else:
|
|
return 'someone'
|
|
ctime = time.strftime("%a %b %d %H:%M:%S %Y")
|
|
localtime = time.localtime()
|
|
gmtime = time.strftime("%a %b %d %H:%M:%S %Y", time.gmtime())
|
|
vars = CallableValueIrcDict({
|
|
'who': msg.nick,
|
|
'nick': msg.nick,
|
|
'user': msg.user,
|
|
'host': msg.host,
|
|
'channel': channel,
|
|
'botnick': irc.nick,
|
|
'now': ctime, 'ctime': ctime,
|
|
'utc': gmtime, 'gmt': gmtime,
|
|
'randnick': randNick, 'randomnick': randNick,
|
|
'randdate': randDate, 'randomdate': randDate,
|
|
'rand': randInt, 'randint': randInt, 'randomint': randInt,
|
|
'today': time.strftime('%d %b %Y', localtime),
|
|
'year': localtime[0],
|
|
'month': localtime[1],
|
|
'monthname': time.strftime('%b', localtime),
|
|
'date': localtime[2],
|
|
'day': time.strftime('%A', localtime),
|
|
'h': localtime[3], 'hr': localtime[3], 'hour': localtime[3],
|
|
'm': localtime[4], 'min': localtime[4], 'minute': localtime[4],
|
|
's': localtime[5], 'sec': localtime[5], 'second': localtime[5],
|
|
'tz': time.strftime('%Z', localtime),
|
|
})
|
|
if env is not None:
|
|
vars.update(env)
|
|
t = string.Template(text)
|
|
t.idpattern = '[a-zA-Z][a-zA-Z0-9]*'
|
|
return t.safe_substitute(vars)
|
|
|
|
if __name__ == '__main__':
|
|
import sys, doctest
|
|
doctest.testmod(sys.modules['__main__'])
|
|
# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
|