Limnoria/scripts/supybot

#!/usr/bin/env python

###
# Copyright (c) 2003, 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.
###

"""
This is the main program to run Supybot.
"""

__revision__ = "$Id$"

import re
import os
import sys
import atexit
import shutil

if sys.version_info < (2, 3, 0):
    sys.stderr.write('This program requires Python >= 2.3.0\n')
    sys.exit(-1)

if os.name == 'posix':
    if os.getuid() == 0 or os.geteuid() == 0:
        sys.stderr.write('Dude, don\'t even try to run this as root.\n')
        sys.exit(-1)

import time
import optparse

started = time.time()

import supybot
import registry

def main():
    import conf
    import utils
    import world
    import drivers
    import schedule
    # We schedule this event rather than have it actually run because if there
    # is a failure between now and the time it takes the Owner plugin to load
    # all the various plugins, our registry file might be wiped.  That's bad.
    when = time.time() + conf.supybot.upkeepInterval()
    schedule.addEvent(world.upkeep, when, name='upkeep')
    world.startedAt = started
    while world.ircs:
        try:
            drivers.run()
        except KeyboardInterrupt:
            log.info('Exiting due to Ctrl-C.')
            now = time.time()
            seconds = now - world.startedAt
            log.info('Total uptime: %s.', utils.timeElapsed(seconds))
            (user, system, _, _, _) = os.times()
            log.info('Total CPU time taken: %s seconds.', user+system)
            raise SystemExit
        except SystemExit:
            raise
        except:
            try: # Ok, now we're *REALLY* paranoid!
                log.exception('Exception raised out of drivers.run:')
            except Exception, e:
                print 'Exception raised in log.exception.  This is *really*'
                print 'bad.  Hopefully it won\'t happen again, but tell us'
                print 'about it anyway, this is a significant problem.'
                print 'Anyway, here\'s the exception: %s'% utils.exnToString(e)
            except:
                print 'Man, this really sucks.  Not only did log.exception'
                print 'raise an exception, but freaking-a, it was a string'
                print 'exception.  People who raise string exceptions should'
                print 'die a slow, painful death.'
    log.info('No more Irc objects, exiting.')

if __name__ == '__main__':
    ###
    # Options:
    # -p (profiling)
    # -O (optimizing)
    # -n, --nick (nick)
    # -s, --server (server)
    # --startup (commands to run onStart)
    # --connect (commands to run afterConnect)
    # --config (configuration values)
    parser = optparse.OptionParser(usage='Usage: %prog [options] configFile',
                                   version='supybot 0.76.1')
    parser.add_option('-P', '--profile', action='store_true', dest='profile',
                      help='enables profiling')
    parser.add_option('-O', action='count', dest='optimize',
                      help='-O optimizes asserts out of the code; ' \
                           '-OO optimizes asserts and uses psyco.')
    parser.add_option('-n', '--nick', action='store',
                      dest='nick', default='',
                      help='nick the bot should use')
    parser.add_option('-s', '--server', action='store',
                      dest='server', default='',
                      help='server to connect to')
    parser.add_option('-u', '--user', action='store',
                      dest='user', default='',
                      help='full username the bot should use')
    parser.add_option('-i', '--ident', action='store',
                      dest='ident', default='',
                      help='ident the bot should use')
    parser.add_option('-p', '--password', action='store',
                      dest='password', default='',
                      help='server password the bot should use')
    parser.add_option('', '--allow-eval', action='store_true',
                      dest='allowEval',
                      help='Determines whether the bot will '
                           'allow the evaluation of arbitrary Python code.')
    parser.add_option('', '--strict-rfc', action='store_true',
                      dest='strictRfc',
                      help='Determines whether the bot will strictly follow '
                           'RFC guidelines defining nicks and channels.')

    (options, args) = parser.parse_args()

    if len(args) > 1:
        parser.error()
    elif not args:
        import socket
        import ircutils
        import questions
        questions.output("""It seems like you're running supybot for the first
        time.  Or, perhaps, you just forgot to give this program an argument
        for your registry file.  If the latter is the case, simply press Ctrl-C
        and this script will exit and you can run it again as indicated.  If
        the former is the case, however, we'll have a few questions for you
        to write your initial registry file.""")
        ###
        # Nick.
        ###
        nick = questions.something("""What nick would you like your bot to
        use?""")
        while not ircutils.isNick(nick):
            questions.output("""That's not a valid IRC nick.  Please choose a
            different nick.""")
            nick = questions.something("""What nick would you like your bot
            to use?""")

        ###
        # Server.
        ###
        def checkServer(server):
            try:
                ip = socket.gethostbyname(server)
                questions.output("""%s resolved to %s.""" % (server, ip))
                return True
            except socket.error:
                questions.output("""That's not a valid hostname.  Please enter
                a hostname that resolves.""")
                return False
        server = questions.something("""What server would you like your bot
        to connect to?""")
        while not checkServer(server):
            server = questions.something("""What server would you like your bot
            to connect to?""")

        ###
        # Channels.
        ###
        def checkChannels(s):
            for channel in s.split():
                if ',' in channel:
                    (channel, _) = channel.split(',', 1)
                if not ircutils.isChannel(channel):
                    questions.output("""%s is not a valid IRC channel.  Please
                    choose a different channel.""" % channel)
                    return False
            return True
        channels = questions.something("""What channels would you like your bot
        to join when it connects to %s?  Separate your channels by spaces; if
        any channels require a keyword to join, separate the keyword from the
        channel by a comma.  For instance, if you want to join #supybot with
        no keyword and #secret with a keyword of 'foo', you would type
        '#supybot #secret,foo' without the quotes.""" % server)
        while not checkChannels(channels):
            channels = questions.something("""What channels would you like your
            bot to join when it connects to %s?  Separate your channels by
            spaces; if any channels require a keyword to join, separate the
            keyword from the channel by a comma.  For instance, if you want to
            join #supybot with no keyword and #secret with a keyword of 'foo',
            you would type '#supybot #secret,foo' without the quotes.
            """ % server)

        ###
        # Filename.
        ###
        def checkFilename(s):
            if os.path.exists(s):
                questions.output("""That file already exists.  Please choose a
                file that doesn't exist yet.  You can always copy it over
                later, of course, but we'd rather play it safe ourselves and
                not risk overwriting an important file.""")
                return False
            try:
                fd = file(s, 'w')
                fd.write('supybot.nick: %s\n' % nick)
                fd.write('supybot.server: %s\n' % server)
                fd.write('supybot.channels: %s\n' % channels)
                fd.close()
                questions.output("""File %s written.  Now, to run your bot,
                run this script with just that filename as an option.  Once you
                do so, your configuration file will become much fuller and more
                complete, with help descriptions describing all the options and
                a significant number more options than you see now.  Have fun!
                """ % s)
                return True
            except EnvironmentError, e:
                questions.output("""Python told me that it couldn't create your
                file, giving me this specific error: %s.""" % e)
                return False
        filename = questions.something("""What filename would you like to write
        this configuration to?""")
        while not checkFilename(filename):
            filename = questions.something("""What filename would you like to
            write this configuration to?""")
        questions.output("""Great!  Seeya on the flipside!""")
        sys.exit(0)
    else:
        registryFilename = args.pop()
        try:
            # The registry *MUST* be opened before importing log or conf.
            registry.open(registryFilename)
            shutil.copy(registryFilename, registryFilename + '.bak')
        except registry.InvalidRegistryFile, e:
            sys.stderr.write(str(e))
            sys.stderr.write(os.linesep)
            sys.exit(-1)
        except EnvironmentError, e:
            sys.stderr.write(str(e))
            sys.stderr.write(os.linesep)
            sys.exit(-1)

    import log
    import conf
    import world
    world.starting = True
    
    def closeRegistry():
        # We only print if world.dying so we don't see these messages during
        # upkeep.
        if world.dying:
            log.info('Writing registry file to %s', registryFilename)
        registry.close(conf.supybot, registryFilename, annotated=True)
        if world.dying:
            log.info('Finished writing registry file.')
    world.flushers.append(closeRegistry)
    world.registryFilename = registryFilename

    nick = options.nick or conf.supybot.nick()
    user = options.user or conf.supybot.user()
    ident = options.ident or conf.supybot.ident()
    password = options.password or conf.supybot.password()

    server = options.server or conf.supybot.server()
    if ':' in server:
        serverAndPort = server.split(':', 1)
        serverAndPort[1] = int(serverAndPort[1])
        server = tuple(serverAndPort)
    else:
        server = (server, 6667)

    if options.optimize:
        __builtins__.__debug__ = False
        if options.optimize > 1:
            try:
                import psyco
                psyco.full()
            except ImportError:
                log.warning('Psyco isn\'t installed, cannot -OO.')

    conf.allowEval = options.allowEval

    if not os.path.exists(conf.supybot.directories.log()):
        os.mkdir(conf.supybot.directories.log())
    if not os.path.exists(conf.supybot.directories.conf()):
        os.mkdir(conf.supybot.directories.conf())
    if not os.path.exists(conf.supybot.directories.data()):
        os.mkdir(conf.supybot.directories.data())

    import irclib
    import ircmsgs
    import drivers
    import callbacks
    import Owner

    import ircutils
    ircutils.strictRfc = options.strictRfc

    irc = irclib.Irc(nick, user, ident, password)
    callback = Owner.Class()
    irc.addCallback(callback)
    driver = drivers.newDriver(server, irc)
    
    if options.profile:
        import profile
        profile.run('main()', '%s-%i.prof' % (nick, time.time()))
    else:
        main()


    
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