Limnoria/plugins/Status.py

#!/usr/bin/env python

###
# Copyright (c) 2002, Jeremiah Fincher
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###

"""
A simple module to handle various informational commands querying the bot's
current status and statistics.
"""
__revision__ = "$Id$"

import plugins

import os
import sys
import sets
import time
import threading
from itertools import islice, ifilter, imap

import conf
import utils
import world
import privmsgs
import callbacks


def configure(onStart, afterConnect, advanced):
    # This will be called by setup.py to configure this module.  onStart and
    # afterConnect are both lists.  Append to onStart the commands you would
    # like to be run when the bot is started; append to afterConnect the
    # commands you would like to be run when the bot has finished connecting.
    from questions import expect, anything, something, yn
    onStart.append('load Status')

class UptimeDB(object):
    def __init__(self, filename='uptimes'):
        dataDir = conf.supybot.directories.data()
        self.filename = os.path.join(dataDir, filename)
        if os.path.exists(self.filename):
            fd = file(self.filename)
            s = fd.read()
            fd.close()
            s = s.replace('\n', ' ')
            self.uptimes = eval(s)
        else:
            self.uptimes = []

    def die(self):
        fd = file(self.filename, 'w')
        fd.write(repr(self.top(50)))
        fd.write('\n')
        fd.close()

    def add(self):
        if world.startedAt != 0 and \
           not any(lambda t: t[0] == world.startedAt, self.uptimes):
            self.uptimes.append((world.startedAt, None))

    def top(self, n=3):
        def decorator(t):
            return t[1] - t[0]
        def invertCmp(cmp):
            def f(x, y):
                return -cmp(x, y)
            return f
        def notNone(t):
            return t[1] is not None and t[0] != 0
        utils.sortBy(decorator, self.uptimes, cmp=invertCmp(cmp))
        return list(islice(ifilter(notNone, self.uptimes), n))

    def update(self):
        for (i, t) in enumerate(self.uptimes):
            if t[0] == world.startedAt:
                self.uptimes[i] = (t[0], time.time())
        

class Status(callbacks.Privmsg):
    def __init__(self):
        callbacks.Privmsg.__init__(self)
        self.sentMsgs = 0
        self.recvdMsgs = 0
        self.sentBytes = 0
        self.recvdBytes = 0
        self.uptimes = UptimeDB()
        self.uptimes.add()
        self.uptimes.update()

    def inFilter(self, irc, msg):
        self.uptimes.update()
        self.recvdMsgs += 1
        self.recvdBytes += len(msg)
        return msg

    def outFilter(self, irc, msg):
        self.sentMsgs += 1
        self.sentBytes += len(msg)
        return msg

    def die(self):
        self.uptimes.update()
        self.uptimes.die()

    def bestuptime(self, irc, msg, args):
        """takes no arguments

        Returns the highest uptimes attained by the bot.
        """
        L = self.uptimes.top()
        if not L:
            irc.error('I don\'t have enough data to answer that.')
            return
        def format((started, ended)):
            return '%s until %s; up for %s' % \
                   (time.strftime(conf.supybot.humanTimestampFormat(),
                                  time.localtime(started)),
                    time.strftime(conf.supybot.humanTimestampFormat(),
                                  time.localtime(ended)),
                    utils.timeElapsed(ended-started))
        irc.reply(utils.commaAndify(imap(format, L)))

    def net(self, irc, msg, args):
        """takes no arguments

        Returns some interesting network-related statistics.
        """
        irc.reply('I have received %s messages for a total of %s bytes.  '
                  'I have sent %s messages for a total of %s bytes.' %
                  (self.recvdMsgs, self.recvdBytes,
                   self.sentMsgs, self.sentBytes))

    def cpu(self, irc, msg, args):
        """takes no arguments

        Returns some interesting CPU-related statistics on the bot.
        """
        (user, system, childUser, childSystem, elapsed) = os.times()
        now = time.time()
        timeRunning = now - world.startedAt
        if user+system < timeRunning+1: # Fudge for FPU inaccuracies.
            children = 'My children have taken %.2f seconds of user time ' \
                       'and %.2f seconds of system time ' \
                       'for a total of %.2f seconds of CPU time.  ' % \
                       (childUser, childSystem, childUser+childSystem)
        else:
            children = ''
        activeThreads = threading.activeCount()
        response = ('I have taken %.2f seconds of user time and %.2f seconds '
                    'of system time, for a total of %.2f seconds of CPU '
                    'time.  %sOut of %s I have %s active.' % 
                    (user, system, user + system, children,
                     utils.nItems('thread', world.threadsSpawned, 'spawned'),
                     activeThreads))
        mem = 'an unknown amount'
        pid = os.getpid()
        plat = sys.platform
        try:
            if plat.startswith('linux') or plat.startswith('sunos') or \
               plat.startswith('freebsd') or plat.startswith('openbsd') or \
               plat.startswith('darwin'):
                try:
                    r = os.popen('ps -o rss -p %s' % pid)
                    r.readline() # VSZ Header.
                    mem = r.readline().strip()
                finally:
                    r.close()
            elif sys.platform.startswith('netbsd'):
                mem = '%s kB' % os.stat('/proc/%s/mem')[7]
            response += '  I\'m taking up %s kB of memory.' % mem
        except Exception:
            self.log.exception('Uncaught exception in cpu:')
        irc.reply(response)

    def cmd(self, irc, msg, args):
        """takes no arguments

        Returns some interesting command-related statistics.
        """
        commands = 0
        callbacksPrivmsg = 0
        for cb in irc.callbacks:
            if isinstance(cb, callbacks.Privmsg) and cb.public:
                if not isinstance(cb, callbacks.PrivmsgRegexp):
                    callbacksPrivmsg += 1
                for attr in dir(cb):
                    if cb.isCommand(attr) and \
                       attr == callbacks.canonicalName(attr):
                        commands += 1
        s = 'I offer a total of %s in %s.  I have processed %s.' % \
            (utils.nItems('command', commands),
             utils.nItems('plugin', callbacksPrivmsg, 'command-based'),
             utils.nItems('command', world.commandsProcessed))
        irc.reply(s)

    def commands(self, irc, msg, args):
        """takes no arguments

        Returns a list of the commands offered by the bot.
        """
        commands = sets.Set()
        for cb in irc.callbacks:
            if isinstance(cb, callbacks.Privmsg) and \
               not isinstance(cb, callbacks.PrivmsgRegexp) and cb.public:
                for attr in dir(cb):
                    if cb.isCommand(attr) and \
                       attr == callbacks.canonicalName(attr):
                        commands.add(attr)
        commands = list(commands)
        commands.sort()
        irc.reply(utils.commaAndify(commands))

    def uptime(self, irc, msg, args):
        """takes no arguments

        Returns the amount of time the bot has been running.
        """
        response = 'I have been running for %s.' % \
                   utils.timeElapsed(time.time() - world.startedAt)
        irc.reply(response)

    def server(self, irc, msg, args):
        """takes no arguments

        Returns the server the bot is on.
        """
        irc.reply(irc.server)


Class = Status

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