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Limnoria/plugins/DCC.py

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###
# Copyright (c) 2002-2004, Jeremiah Fincher
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# 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.
###
"""
Supports various DCC things.
"""
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__revision__ = "$Id$"
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import supybot.plugins as plugins
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import socket
import textwrap
import threading
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import supybot.conf as conf
import supybot.utils as utils
import supybot.world as world
from supybot.commands import *
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import supybot.ircmsgs as ircmsgs
import supybot.ircutils as ircutils
import supybot.callbacks as callbacks
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class DCC(callbacks.Privmsg):
def chat(self, irc, msg, args, text):
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"""<text>
Sends <text> to the user via a DCC CHAT. Use nested commands to your
benefit here.
"""
def openChatPort():
try:
host = ircutils.hostFromHostmask(irc.prefix)
try:
sock = utils.getSocket(host)
except socket.error, e:
s = 'Error connecting to %s: %s'
self.log.warning(s, host, e)
irc.replyError()
return
sock.settimeout(60)
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if conf.supybot.externalIP():
ip = conf.supybot.externalIP()
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else:
try:
ip = socket.gethostbyname(host)
except socket.error, e:
s = 'Error trying to determine the external IP ' \
'address of this machine via the host %s: %s'
self.log.warning(s, host, e)
irc.replyError()
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return
i = ircutils.dccIP(ip)
try:
sock.bind((host, 0))
except socket.error, e:
irc.error('Unable to initiate DCC CHAT.')
return
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port = sock.getsockname()[1]
self.log.info('DCC CHAT port opened at (%s, %s)', host, port)
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sock.listen(1)
m = ircmsgs.privmsg(msg.nick,
'\x01DCC CHAT chat %s %s\x01' % (i, port))
irc.queueMsg(m)
try:
(realSock, addr) = sock.accept()
except socket.timeout:
self.log.info('DCC CHAT timed out.')
return
self.log.info('DCC CHAT accepted from %s', addr)
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for line in textwrap.wrap(text, 80):
realSock.send(line)
realSock.send('\n')
finally:
self.log.info('Finally closing sock and realSock.')
try:
sock.close()
except UnboundLocalError:
pass
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try:
realSock.close()
except UnboundLocalError:
pass
t = threading.Thread(target=openChatPort)
world.threadsSpawned += 1
t.setDaemon(True)
t.start()
chat = wrap(chat, ['text'])
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Class = DCC
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: