Limnoria/plugins/Later/plugin.py

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###
# Copyright (c) 2004, Jeremiah Fincher
# Copyright (c) 2010, James McCoy
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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.
###
import csv
import time
import datetime
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import supybot.log as log
import supybot.conf as conf
import supybot.utils as utils
from supybot.commands import *
import supybot.ircmsgs as ircmsgs
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import supybot.ircutils as ircutils
import supybot.callbacks as callbacks
from supybot.i18n import PluginInternationalization, internationalizeDocstring
_ = PluginInternationalization('Later')
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class Later(callbacks.Plugin):
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"""Used to do things later; currently, it only allows the sending of
nick-based notes. Do note (haha!) that these notes are *not* private
and don't even pretend to be; if you want such features, consider using the
Note plugin."""
def __init__(self, irc):
self.__parent = super(Later, self)
self.__parent.__init__(irc)
self._notes = ircutils.IrcDict()
self.wildcards = []
self.filename = conf.supybot.directories.data.dirize('Later.db')
self._openNotes()
def die(self):
self._flushNotes()
def _flushNotes(self):
fd = utils.file.AtomicFile(self.filename)
writer = csv.writer(fd)
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for (nick, notes) in self._notes.items():
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for (time, whence, text) in notes:
writer.writerow([nick, time, whence, text])
fd.close()
def _openNotes(self):
try:
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fd = open(self.filename)
except EnvironmentError as e:
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self.log.warning('Couldn\'t open %s: %s', self.filename, e)
return
reader = csv.reader(fd)
for (nick, time, whence, text) in reader:
self._addNote(nick, whence, text, at=float(time), maximum=0)
fd.close()
def _timestamp(self, when):
#format = conf.supybot.reply.format.time()
diff = when - time.time()
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try:
return utils.timeElapsed(diff, seconds=False)
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except ValueError:
return _('just now')
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def _addNote(self, nick, whence, text, at=None, maximum=None):
if at is None:
at = time.time()
if maximum is None:
maximum = self.registryValue('maximum')
try:
notes = self._notes[nick]
if maximum and len(notes) >= maximum:
raise ValueError
else:
notes.append((at, whence, text))
except KeyError:
self._notes[nick] = [(at, whence, text)]
if '?' in nick or '*' in nick and nick not in self.wildcards:
self.wildcards.append(nick)
self._flushNotes()
def _validateNick(self, irc, nick):
"""Validate nick according to the IRC RFC 2812 spec.
Reference: http://tools.ietf.org/rfcmarkup?doc=2812#section-2.3.1
Some irc clients' tab-completion feature appends 'address' characters
to nick, such as ':' or ','. We try correcting for that by trimming
a char off the end.
If nick incorrigibly invalid, return False, otherwise,
return (possibly trimmed) nick.
"""
if not irc.isNick(nick):
if not irc.isNick(nick[:-1]):
return False
else:
return nick[:-1]
return nick
def _deleteExpired(self):
expiry = self.registryValue('messageExpiry')
curtime = time.time()
nickremovals=[]
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for (nick, notes) in self._notes.items():
removals = []
for (notetime, whence, text) in notes:
td = datetime.timedelta(seconds=(curtime - notetime))
if td.days > expiry:
removals.append((notetime, whence, text))
for note in removals:
notes.remove(note)
if len(notes) == 0:
nickremovals.append(nick)
for nick in nickremovals:
del self._notes[nick]
self._flushNotes()
## Note: we call _deleteExpired from 'tell'. This means that it's possible
## for expired notes to remain in the database for longer than the maximum,
## if no tell's are called.
## However, the whole point of this is to avoid crud accumulation in the
## database, so it's fine that we only delete expired notes when we try
## adding new ones.
@internationalizeDocstring
def tell(self, irc, msg, args, nicks, text):
"""<nick1[,nick2[,...]]> <text>
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Tells each <nickX> <text> the next time <nickX> is seen. <nickX> can
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contain wildcard characters, and the first matching nick will be
given the note.
"""
self._deleteExpired()
validnicks = []
for nick in nicks:
if ircutils.strEqual(nick, irc.nick):
irc.error(_('I can\'t send notes to myself.'))
return
validnick = self._validateNick(irc, nick)
if validnick is False:
irc.error(_('%s is an invalid IRC nick. Please check your '
'input.' % nick))
return
validnicks.append(validnick)
full_queues = []
for validnick in validnicks:
try:
self._addNote(validnick, msg.nick, text)
except ValueError:
full_queues.append(validnick)
if full_queues:
irc.error(format(
_('These recipients\' message queue are already full: %L'),
full_queues))
else:
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irc.replySuccess()
tell = wrap(tell, [commalist('somethingWithoutSpaces'), 'text'])
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@internationalizeDocstring
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def notes(self, irc, msg, args, nick):
"""[<nick>]
If <nick> is given, replies with what notes are waiting on <nick>,
otherwise, replies with the nicks that have notes waiting for them.
"""
if nick:
if nick in self._notes:
notes = [self._formatNote(when, whence, note)
for (when, whence, note) in self._notes[nick]]
irc.reply(format('%L', notes))
else:
irc.error(_('I have no notes for that nick.'))
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else:
nicks = self._notes.keys()
if nicks:
utils.sortBy(ircutils.toLower, nicks)
irc.reply(format(_('I currently have notes waiting for %L.'),
nicks))
else:
irc.error(_('I have no notes waiting to be delivered.'))
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notes = wrap(notes, [additional('something')])
@internationalizeDocstring
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def remove(self, irc, msg, args, nick):
"""<nick>
Removes the notes waiting on <nick>.
"""
try:
del self._notes[nick]
self._flushNotes()
irc.replySuccess()
except KeyError:
irc.error(_('There were no notes for %r') % nick)
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remove = wrap(remove, [('checkCapability', 'admin'), 'something'])
@internationalizeDocstring
def undo(self, irc, msg, args, nick):
"""<nick>
Removes the latest note you sent to <nick>.
"""
if nick not in self._notes:
irc.error(_('There are no note waiting for %s.') % nick)
return
self._notes[nick].reverse()
for note in self._notes[nick]:
if note[1] == msg.nick:
self._notes[nick].remove(note)
if len(self._notes[nick]) == 0:
del self._notes[nick]
self._flushNotes()
irc.replySuccess()
return
irc.error(_('There are no note from you waiting for %s.') % nick)
undo = wrap(undo, ['something'])
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def doPrivmsg(self, irc, msg):
if ircmsgs.isCtcp(msg) and not ircmsgs.isAction(msg):
return
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notes = self._notes.pop(msg.nick, [])
# Let's try wildcards.
removals = []
for wildcard in self.wildcards:
if ircutils.hostmaskPatternEqual(wildcard, msg.nick):
removals.append(wildcard)
notes.extend(self._notes.pop(wildcard))
for removal in removals:
self.wildcards.remove(removal)
if notes:
old_repliedto = msg.repliedTo
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irc = callbacks.SimpleProxy(irc, msg)
private = self.registryValue('private')
for (when, whence, note) in notes:
s = self._formatNote(when, whence, note)
irc.reply(s, private=private, prefixNick=not private)
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self._flushNotes()
msg.repliedTo = old_repliedto
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def _formatNote(self, when, whence, note):
return _('Sent %s: <%s> %s') % (self._timestamp(when), whence, note)
def doJoin(self, irc, msg):
if self.registryValue('tellOnJoin'):
self.doPrivmsg(irc, msg)
Later = internationalizeDocstring(Later)
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Class = Later
# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79: