Limnoria/src/ircmsgs.py

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#!/usr/bin/env python
###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
from fix import *
import re
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import debug
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import ircutils
###
# IrcMsg class -- used for representing IRC messages acquired from a network.
###
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class IrcMsg(object):
"""Class to represent an IRC message.
"""
__slots__ = ('_args', '_command', '_host', '_nick',
'_prefix', '_user', '_hash')
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def __init__(self, s='', command='', args=None, prefix='', msg=None):
if not s and not command and not msg:
raise ValueError, 'IRC messages require a command.'
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if msg:
prefix = msg.prefix
command = msg.command
args = msg.args
if command: # Must be using command=, args=, prefix= form.
if args is not None:
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#debug.printf(args)
assert filter(ircutils.isValidArgument, args) == args
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else:
args = ()
else: # Must be using a string.
if s[0] == ':':
prefix, s = s[1:].split(None, 1)
else:
prefix = ''
if s.find(' :') != -1:
s, last = s.split(' :', 1)
args = s.split()
args.append(last.rstrip())
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else:
args = s.split()
command = args.pop(0)
if ircutils.isUserHostmask(prefix):
(nick, user, host) = ircutils.splitHostmask(prefix)
else:
(nick, user, host) = ('', '', '')
self._prefix = prefix
self._nick = ircutils.nick(nick)
self._user = user
self._host = host
self._command = command
self._args = tuple(args)
prefix = property(lambda self: self._prefix)
nick = property(lambda self: self._nick)
user = property(lambda self: self._user)
host = property(lambda self: self._host)
command = property(lambda self: self._command)
args = property(lambda self: self._args)
def __str__(self):
ret = ''
if self.prefix:
ret = ':%s %s' % (self.prefix, self.command)
else:
ret = self.command
if self.args:
if len(self.args) > 1:
ret = '%s %s :%s\r\n' % (ret, ' '.join(self.args[:-1]),
self.args[-1])
else:
ret = '%s :%s\r\n' % (ret, self.args[0])
else:
ret = ret + '\r\n'
return ret
def __len__(self):
# This might not take into account the length of the prefix, but leaves
# some room for variation.
ret = 0
if self.prefix:
ret += len(self.prefix)
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else:
ret += 42 # Ironically, the average length of an IRC prefix.
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ret += len(self.command)
if self.args:
for arg in self.args:
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ret += len(arg) + 1 # Remember the space prior to the arg.
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ret += 2 # For the colon before the prefix and before the last arg.
return ret
def __eq__(self, other):
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return hash(self) == hash(other) and \
self.command == other.command and \
self.prefix == other.prefix and \
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self.args == other.args
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def __ne__(self, other):
return not (self == other)
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def __hash__(self):
try:
return self._hash
except AttributeError:
self._hash = hash(self.command) & \
hash(self.prefix) & \
hash(self.args)
return self._hash
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def __repr__(self):
return '%s(prefix=%r, command=%r, args=%r)' % \
(self.__class__.__name__, self.prefix, self.command, self.args)
def __getstate__(self):
return str(self)
def __setstate__(self, s):
self.__init__(s)
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def isAction(msg):
return msg.command == 'PRIVMSG' and \
msg.args[1].startswith('\x01ACTION') and \
msg.args[1].endswith('\x01')
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_unactionre = re.compile(r'^\x01ACTION (.*)\x01$')
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def unAction(msg):
return _unactionre.match(msg.args[1]).group(1)
def prettyPrint(msg, addRecipients=False):
def nickorprefix():
return msg.nick or msg.prefix
def nick():
if addRecipients:
return '%s/%s' % (msg.nick, msg.args[0])
else:
return msg.nick
if msg.command == 'PRIVMSG':
m = _unactionre.match(msg.args[1])
if m:
s = '* %s %s' % (nick(), m.group(1))
else:
s = '<%s> %s' % (nick(), msg.args[1])
elif msg.command == 'NOTICE':
s = '-%s- %s' % (nick(), msg.args[1])
elif msg.command == 'JOIN':
s = '*** %s has joined %s' % (msg.nick, msg.args[0])
elif msg.command == 'PART':
if len(msg.args) > 1:
partmsg = ' (%s)' % msg.args[1]
else:
partmsg = ''
s = '*** %s has parted %s%s' % (msg.nick, msg.args[0], partmsg)
elif msg.command == 'KICK':
if len(msg.args) > 2:
kickmsg = ' (%s)' % msg.args[1]
else:
kickmsg = ''
s = '*** %s was kicked by %s%s' % (msg.args[1], msg.nick, kickmsg)
elif msg.command == 'MODE':
s = '*** %s sets mode: %s' % (nickorprefix(), ' '.join(msg.args))
elif msg.command == 'QUIT':
if msg.args:
quitmsg = ' (%s)' % msg.args[0]
else:
quitmsg = ''
s = '*** %s has quit IRC%s' % quitmsg
elif msg.command == 'TOPIC':
s = '*** %s changes topic to %s' % (nickorprefix(), msg.args[1])
return s
###
# Various IrcMsg functions
###
MODE = 'MODE'
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isNick = ircutils.isNick
isChannel = ircutils.isChannel
isUserHostmask = ircutils.isUserHostmask
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def pong(payload, prefix=''):
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"""Takes a payload and returns the proper PONG IrcMsg."""
assert payload, 'PONG requires a payload'
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return IrcMsg(prefix=prefix, command='PONG', args=(payload,))
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def ping(payload, prefix=''):
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"""Takes a payload and returns the proper PING IrcMsg."""
assert payload, 'PING requires a payload'
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return IrcMsg(prefix=prefix, command='PING', args=(payload,))
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def op(channel, nick, prefix=''):
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"""Returns a MODE to op nick on channel."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '+o', nick))
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def ops(channel, nicks, prefix=''):
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"""Returns a MODE to op each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks, nicks
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return IrcMsg(prefix=prefix, command=MODE,
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args=(channel, '+' + ('o'*len(nicks)), nicks))
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def deop(channel, nick, prefix=''):
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"""Returns a MODE to deop nick on channel."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '-o', nick))
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def deops(channel, nicks, prefix=''):
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"""Returns a MODE to deop each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks, nicks
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return IrcMsg(prefix=prefix, command=MODE,
args=(channel, '-' + ('o'*len(nicks)), nicks))
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def halfop(channel, nick, prefix=''):
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"""Returns a MODE to halfop nick on channel."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '+h', nick))
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def halfops(channel, nicks, prefix=''):
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"""Returns a MODE to halfop each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks, nicks
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return IrcMsg(command=MODE, args=(channel, '+' + ('h'*len(nicks)), nicks))
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def dehalfop(channel, nick, prefix=''):
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"""Returns a MODE to dehalfop nick on channel."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '-h', nick))
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def dehalfops(channel, nicks, prefix=''):
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"""Returns a MODE to dehalfop each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks, nicks
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return IrcMsg(prefix=prefix, command=MODE,
args=(channel, '-' + ('h'*len(nicks)), nicks))
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def voice(channel, nick, prefix=''):
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"""Returns a MODE to voice nick on channel."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '+v', nick))
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def voices(channel, nicks, prefix=''):
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"""Returns a MODE to voice each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks
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return IrcMsg(prefix=prefix, command=MODE,
args=(channel, '+' + ('v'*len(nicks)), nicks))
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def devoice(channel, nick, prefix=''):
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"""Returns a MODE to devoice nick on channel."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '-v', nick))
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def devoices(channel, nicks, prefix=''):
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"""Returns a MODE to devoice each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks, nicks
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return IrcMsg(prefix=prefix, command=MODE,
args=(channel, '-' + ('v'*len(nicks)), nicks))
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def ban(channel, hostmask, exception='', prefix=''):
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"""Returns a MODE to ban nick on channel."""
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assert isChannel(channel), channel
assert isUserHostmask(hostmask), hostmask
modes = [('+b', hostmask)]
if exception:
modes.append(('+e', exception))
return IrcMsg(prefix=prefix, command=MODE,
args=[channel] + ircutils.joinModes(modes))
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def bans(channel, hostmasks, exceptions=(), prefix=''):
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"""Returns a MODE to ban each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isUserHostmask, hostmasks) == hostmasks, hostmasks
modes = [('+b', s) for s in hostmasks] + [('+e', s) for s in exceptions]
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return IrcMsg(prefix=prefix, command=MODE,
args=[channel] + ircutils.joinModes(modes))
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def unban(channel, hostmask, prefix=''):
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"""Returns a MODE to unban nick on channel."""
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assert isChannel(channel), channel
assert isUserHostmask(hostmask), hostmask
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return IrcMsg(prefix=prefix, command=MODE, args=(channel, '-b', hostmask))
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def unbans(channel, hostmasks, prefix=''):
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"""Returns a MODE to unban each of nicks on channel."""
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assert isChannel(channel), channel
assert filter(isUserHostmask, hostmasks) == hostmasks, hostmasks
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return IrcMsg(prefix=prefix, command=MODE,
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args=(channel, '-' + ('b'*len(hostmasks)), hostmasks))
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def kick(channel, nick, msg='', prefix=''):
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"""Returns a KICK to kick nick from channel with the message msg."""
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assert isChannel(channel), channel
assert isNick(nick), nick
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if msg:
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return IrcMsg(prefix=prefix, command='KICK', args=(channel, nick, msg))
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else:
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return IrcMsg(prefix=prefix, command='KICK', args=(channel, nick))
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def kicks(channel, nicks, msg='', prefix=''):
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"""Returns a KICK to kick each of nicks from channel with the message msg.
"""
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assert isChannel(channel), channel
assert filter(isNick, nicks) == nicks, nicks
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if msg:
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return IrcMsg(prefix=prefix, command='KICK',
args=(channel, ','.join(nicks), msg))
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else:
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return IrcMsg(prefix=prefix, command='KICK',
args=(channel, ','.join(nicks)))
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def privmsg(recipient, msg, prefix=''):
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"""Returns a PRIVMSG to recipient with the message msg."""
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assert (isChannel(recipient) or isNick(recipient)), recipient
assert msg, 'msg must not be empty.'
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return IrcMsg(prefix=prefix, command='PRIVMSG', args=(recipient, msg))
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def action(recipient, msg, prefix=''):
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"""Returns a PRIVMSG ACTION to recipient with the message msg."""
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assert (isChannel(recipient) or isNick(recipient)), recipient
assert msg, 'msg must not be empty.'
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return IrcMsg(prefix=prefix, command='PRIVMSG',
args=(recipient,'\x01ACTION %s\x01'% msg))
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def notice(recipient, msg, prefix=''):
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"""Returns a NOTICE to recipient with the message msg."""
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assert (isChannel(recipient) or isNick(recipient)), recipient
assert msg, 'msg must not be empty.'
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return IrcMsg(prefix=prefix, command='NOTICE', args=(recipient, msg))
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def join(channel, key=None, prefix=''):
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"""Returns a JOIN to a channel"""
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assert isChannel(channel), channel
if key is None:
return IrcMsg(prefix=prefix, command='JOIN', args=(channel,))
else:
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assert key.translate(string.ascii, string.ascii[128:]) == '' and \
'\x00' not in key and \
'\r' not in key and \
'\n' not in key and \
'\f' not in key and \
'\t' not in key and \
'\v' not in key and \
' ' not in key
return IrcMsg(prefix=prefix, command='JOIN', args=(channel, key))
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def joins(channels, keys=None, prefix=''):
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"""Returns a JOIN to each of channels."""
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assert filter(isChannel, channels) == channels, channels
if keys is None:
keys = []
assert len(keys) <= len(channels)
if not keys:
return IrcMsg(prefix=prefix,
command='JOIN',
args=(','.join(channels),))
else:
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for key in keys:
assert key.translate(string.ascii, string.ascii[128:]) == '' and \
'\x00' not in key and \
'\r' not in key and \
'\n' not in key and \
'\f' not in key and \
'\t' not in key and \
'\v' not in key and \
' ' not in key
return IrcMsg(prefix=prefix,
command='JOIN',
args=(','.join(channels), ','.join(keys)))
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def part(channel, msg='', prefix=''):
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"""Returns a PART from channel with the message msg."""
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assert isChannel(channel), channel
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if msg:
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return IrcMsg(prefix=prefix, command='PART', args=(channel, msg))
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else:
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return IrcMsg(prefix=prefix, command='PART', args=(channel,))
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def parts(channels, msg='', prefix=''):
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"""Returns a PART from each of channels with the message msg."""
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assert filter(isChannel, channels) == channels, channels
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if msg:
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return IrcMsg(prefix=prefix, command='PART',
args=(','.join(channels), msg,))
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else:
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return IrcMsg(prefix=prefix, command='PART',
args=(','.join(channels),))
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def quit(msg='', prefix=''):
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"""Returns a QUIT with the message msg."""
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if msg:
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return IrcMsg(prefix=prefix, command='QUIT', args=(msg,))
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else:
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return IrcMsg(prefix=prefix, command='QUIT')
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def topic(channel, topic, prefix=''):
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"""Returns a TOPIC for channel with the topic topic."""
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assert isChannel(channel), channel
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return IrcMsg(prefix=prefix, command='TOPIC', args=(channel, topic))
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def nick(nick, prefix=''):
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"""Returns a NICK with nick nick."""
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assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command='NICK', args=(nick,))
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def user(ident, user, prefix=''):
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"""Returns a USER with ident ident and user user."""
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assert '\x00' not in user and \
'\r' not in user and \
'\n' not in user and \
' ' not in user and \
'@' not in user
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return IrcMsg(prefix=prefix, command='USER', args=(ident, '0', '*', user))
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def who(hostmaskOrChannel, prefix=''):
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"""Returns a WHO for the hostmask or channel hostmaskOrChannel."""
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assert isChannel(hostmaskOrChannel) or isUserHostmask(hostmaskOrChannel), \
hostmaskOrChannel
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return IrcMsg(prefix=prefix, command='WHO', args=(hostmaskOrChannel,))
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def whois(nick, prefix=''):
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"""Returns a WHOIS for nick."""
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assert isNick(nick), nick
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return IrcMsg(command='WHOIS', args=(nick,))
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def invite(channel, nick, prefix=''):
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"""Returns an INVITE for nick."""
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assert isNick(nick), nick
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return IrcMsg(prefix=prefix, command='INVITE', args=(channel, nick))
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def password(password, prefix=''):
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assert password, 'password must not be empty.'
return IrcMsg(prefix=prefix, command='PASS', args=(password,))
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