mirror of
https://github.com/Mikaela/Limnoria.git
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efed7d8081
I fear putting it in callbacks would be overzealous and reset it within the processing of the same message, eg. when using conditional to set the 'ignore' tag before other nested commands run.
304 lines
13 KiB
Python
304 lines
13 KiB
Python
###
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# Copyright (c) 2003-2004, Jeremiah Fincher
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# Copyright (c) 2010-2021, Valentin Lorentz
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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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import time
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import os
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import math
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import shutil
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import tempfile
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import supybot.conf as conf
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import supybot.utils as utils
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from supybot.commands import *
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import supybot.schedule as schedule
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import supybot.callbacks as callbacks
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from supybot.i18n import PluginInternationalization, internationalizeDocstring
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_ = PluginInternationalization('Scheduler')
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import supybot.world as world
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import supybot.utils.minisix as minisix
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pickle = minisix.pickle
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datadir = conf.supybot.directories.data()
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filename = conf.supybot.directories.data.dirize('Scheduler.pickle')
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class Scheduler(callbacks.Plugin):
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"""This plugin allows you to schedule commands to execute at a later time."""
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def __init__(self, irc):
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self.__parent = super(Scheduler, self)
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self.__parent.__init__(irc)
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self.events = {}
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self._restoreEvents(irc)
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world.flushers.append(self._flush)
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def _getNextRunIn(self, first_run, now, period, not_right_now=False):
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next_run_in = period - ((now - first_run) % period)
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if not_right_now and next_run_in < 5:
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# don't run immediatly, it might overwhelm the bot on
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# startup.
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next_run_in += period
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return next_run_in
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def _restoreEvents(self, irc):
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try:
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pkl = open(filename, 'rb')
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try:
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eventdict = pickle.load(pkl)
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except Exception as e:
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self.log.debug('Unable to load pickled data: %s', e)
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return
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finally:
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pkl.close()
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except IOError as e:
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self.log.debug('Unable to open pickle file: %s', e)
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return
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for name, event in eventdict.items():
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# old DBs don't have the "network", let's take the current network
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# instead.
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network = event.get('network', irc.network)
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try:
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if event['type'] == 'single': # non-repeating event
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n = None
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if schedule.schedule.counter > int(name):
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# counter not reset, we're probably reloading the plugin
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# though we'll never know for sure, because other
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# plugins can schedule stuff, too.
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n = int(name)
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# Here we use event.get() method instead of event[]
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# This is to maintain compatibility with older bots
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# lacking 'is_reminder' in their event dicts
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is_reminder = event.get('is_reminder', False)
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self._add(network, event['msg'], event['time'], event['command'],
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is_reminder, n)
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elif event['type'] == 'repeat': # repeating event
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now = time.time()
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first_run = event.get('first_run')
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if first_run is None:
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# old DBs don't have a "first_run"; let's take "now" as
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# first_run.
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first_run = now
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# Preserve the offset over restarts; eg. if event['time']
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# is 24hours, we want to keep running the command at the
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# same time of day.
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next_run_in = self._getNextRunIn(
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first_run, now, event['time'], not_right_now=True)
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self._repeat(network, event['msg'], name,
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event['time'], event['command'], first_run, next_run_in)
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except AssertionError as e:
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if str(e) == 'An event with the same name has already been scheduled.':
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# we must be reloading the plugin, event is still scheduled
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self.log.info('Event %s already exists, adding to dict.', name)
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self.events[name] = event
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else:
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raise
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def _flush(self):
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try:
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pklfd, tempfn = tempfile.mkstemp(suffix='scheduler', dir=datadir)
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pkl = os.fdopen(pklfd, 'wb')
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try:
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pickle.dump(self.events, pkl)
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except Exception as e:
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self.log.warning('Unable to store pickled data: %s', e)
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pkl.close()
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shutil.move(tempfn, filename)
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except (IOError, shutil.Error) as e:
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self.log.warning('File error: %s', e)
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def die(self):
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self._flush()
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world.flushers.remove(self._flush)
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self.__parent.die()
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def _makeCommandFunction(self, network, msg, command, remove=True):
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"""Makes a function suitable for scheduling from command."""
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def f():
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# If the network isn't available, pick any other one
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irc = world.getIrc(network) or world.ircs[0]
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tokens = callbacks.tokenize(command,
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channel=msg.channel, network=irc.network)
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if remove:
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del self.events[str(f.eventId)]
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# A previous run of the command may have set 'ignored' to True,
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# causing this run to not include response from nested commands;
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# as NestedCommandsIrcProxy.reply() would confuse it with the
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# subcommand setting 'ignored' to True itself.
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msg.tag('ignored', False)
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self.Proxy(irc, msg, tokens)
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return f
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def _makeReminderFunction(self, network, msg, text):
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"""Makes a function suitable for scheduling text"""
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def f():
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# If the network isn't available, pick any other one
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irc = world.getIrc(network) or world.ircs[0]
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replyIrc = callbacks.ReplyIrcProxy(irc, msg)
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replyIrc.reply(_('Reminder: %s') % text, msg=msg, prefixNick=True)
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del self.events[str(f.eventId)]
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return f
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def _add(self, network, msg, t, command, is_reminder=False, name=None):
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if is_reminder:
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f = self._makeReminderFunction(network, msg, command)
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else:
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f = self._makeCommandFunction(network, msg, command)
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id = schedule.addEvent(f, t, name)
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f.eventId = id
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self.events[str(id)] = {'command':command,
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'is_reminder':is_reminder,
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'msg':msg,
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'network':network,
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'time':t,
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'type':'single'}
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return id
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@internationalizeDocstring
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def add(self, irc, msg, args, seconds, command):
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"""<seconds> <command>
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Schedules the command string <command> to run <seconds> seconds in the
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future. For example, 'scheduler add [seconds 30m] "echo [cpu]"' will
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schedule the command "cpu" to be sent to the channel the schedule add
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command was given in (with no prefixed nick, a consequence of using
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echo). Do pay attention to the quotes in that example.
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"""
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t = time.time() + seconds
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id = self._add(irc.network, msg, t, command)
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irc.replySuccess(format(_('Event #%i added.'), id))
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add = wrap(add, ['positiveInt', 'text'])
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@internationalizeDocstring
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def remind(self, irc, msg, args, seconds, text):
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""" <seconds> <text>
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Sets a reminder with string <text> to run <seconds> seconds in the
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future. For example, 'scheduler remind [seconds 30m] "Hello World"'
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will return '<nick> Reminder: Hello World' 30 minutes after being set.
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"""
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t = time.time() + seconds
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id = self._add(irc.network, msg, t, text, is_reminder=True)
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irc.replySuccess(format(_('Reminder Event #%i added.'), id))
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remind = wrap(remind, ['positiveInt', 'text'])
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@internationalizeDocstring
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def remove(self, irc, msg, args, id):
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"""<id>
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Removes the event scheduled with id <id> from the schedule.
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"""
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if id in self.events:
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del self.events[id]
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try:
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id = int(id)
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except ValueError:
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pass
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try:
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schedule.removeEvent(id)
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irc.replySuccess()
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except KeyError:
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irc.error(_('Invalid event id.'))
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else:
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irc.error(_('Invalid event id.'))
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remove = wrap(remove, ['lowered'])
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def _repeat(self, network, msg, name, seconds, command, first_run, next_run_in):
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f = self._makeCommandFunction(network, msg, command, remove=False)
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f_wrapper = schedule.schedule.makePeriodicWrapper(f, seconds, name)
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assert first_run is not None
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id = schedule.addEvent(f_wrapper, time.time() + next_run_in, name)
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assert id == name
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self.events[name] = {'command':command,
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'msg':msg,
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'network':network,
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'time':seconds,
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'type':'repeat',
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'first_run': first_run,
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}
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@internationalizeDocstring
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def repeat(self, irc, msg, args, optlist, name, seconds, command):
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"""[--delay <delay>] <name> <seconds> <command>
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Schedules the command <command> to run every <seconds> seconds,
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starting now (i.e., the command runs now, and every <seconds> seconds
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thereafter). <name> is a name by which the command can be
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unscheduled.
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If --delay is given, starts in <delay> seconds instead of now.
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"""
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opts = dict(optlist)
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name = name.lower()
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if name in self.events:
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irc.error(_('There is already an event with that name, please '
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'choose another name.'), Raise=True)
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next_run_in = opts.get('delay', 0)
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first_run = time.time() + next_run_in
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self._repeat(
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irc.network, msg, name, seconds, command, first_run, next_run_in)
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# We don't reply because the command runs immediately.
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# But should we? What if the command doesn't have visible output?
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# irc.replySuccess()
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repeat = wrap(repeat, [
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getopts({'delay': 'positiveInt'}),
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'nonInt', 'positiveInt', 'text'])
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@internationalizeDocstring
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def list(self, irc, msg, args):
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"""takes no arguments
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Lists the currently scheduled events.
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"""
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L = list(self.events.items())
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if L:
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L.sort()
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replies = []
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now = time.time()
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for (i, (name, event)) in enumerate(L):
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if event['type'] == 'single':
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replies.append(format('%s (in %T): %q', name,
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event['time'] - now, event['command']))
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else:
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next_run_in = self._getNextRunIn(
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event['first_run'], now, event['time'])
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replies.append(format('%s (every %T, next run in %T): %q',
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name, event['time'], next_run_in, event['command']))
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irc.reply(format('%L', replies))
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else:
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irc.reply(_('There are currently no scheduled commands.'))
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list = wrap(list)
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Class = Scheduler
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# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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