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121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
#!/usr/bin/env python
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###
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# Copyright (c) 2002, Jeremiah Fincher
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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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Contains various drivers (network, file, and otherwise) for using IRC objects.
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"""
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__revision__ = "$Id$"
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import fix
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import re
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import os
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import sys
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import log
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import conf
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import ansi
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import ircmsgs
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_drivers = {}
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_deadDrivers = []
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_newDrivers = []
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class IrcDriver(object):
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"""Base class for drivers."""
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def __init__(self):
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_newDrivers.append((self.name(), self))
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if not hasattr(self, 'irc'):
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self.irc = None # This is to satisfy PyChecker.
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def run(self):
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raise NotImplementedError
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def die(self):
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# The end of any overrided die method should be
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# "super(Class, self).die()", in order to make
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# sure this (and anything else later added) is done.
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_deadDrivers.append(self.name())
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def reconnect(self, wait=False):
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raise NotImplementedError
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def name(self):
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return repr(self)
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def empty():
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"""Returns whether or not the driver loop is empty."""
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return (len(_drivers) + len(_newDrivers)) == 0
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def add(name, driver):
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"""Adds a given driver the loop with the given name."""
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_newDrivers.append((name, driver))
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def remove(name):
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"""Removes the driver with the given name from the loop."""
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_deadDrivers.append(name)
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def run():
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"""Runs the whole driver loop."""
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for (name, driver) in _drivers.iteritems():
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try:
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if name not in _deadDrivers:
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driver.run()
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except:
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log.exception('Uncaught exception in in drivers.run:')
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_deadDrivers.append(name)
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for name in _deadDrivers:
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try:
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driver = _drivers[name]
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driver.irc.driver = None
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driver.irc = None
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del _drivers[name]
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except KeyError:
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pass
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while _newDrivers:
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(name, driver) = _newDrivers.pop()
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if name in _drivers:
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_drivers[name].die()
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del _drivers[name]
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_drivers[name] = driver
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def newDriver(server, irc, moduleName=None):
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"""Returns a new driver for the given server using the irc given and using
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conf.supybot.driverModule to determine what driver to pick."""
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if moduleName is None:
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moduleName = conf.supybot.drivers.module()
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driver = __import__(moduleName).Driver(server, irc)
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irc.driver = driver
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return driver
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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