Limnoria/plugins/Karma.py

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#!/usr/bin/env python
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###
# Copyright (c) 2002-2004, Jeremiah Fincher
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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.
###
"""
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Plugin for handling Karma stuff for a channel.
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"""
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__revision__ = "$Id$"
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import os
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import sets
from itertools import imap
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import supybot.conf as conf
import supybot.utils as utils
import supybot.plugins as plugins
import supybot.ircutils as ircutils
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import supybot.privmsgs as privmsgs
import supybot.registry as registry
import supybot.callbacks as callbacks
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try:
import sqlite
except ImportError:
raise callbacks.Error, 'You need to have PySQLite installed to use this ' \
'plugin. Download it at <http://pysqlite.sf.net/>'
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conf.registerPlugin('Karma')
conf.registerChannelValue(conf.supybot.plugins.Karma, 'simpleOutput',
registry.Boolean(False, """Determines whether the bot will output shorter
versions of the karma output when requesting a single thing's karma."""))
conf.registerChannelValue(conf.supybot.plugins.Karma, 'response',
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registry.Boolean(False, """Determines whether the bot will reply with a
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success message when something's karma is increased or decreased."""))
conf.registerChannelValue(conf.supybot.plugins.Karma, 'rankingDisplay',
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registry.Integer(3, """Determines how many highest/lowest karma things are
shown when karma is called with no arguments."""))
conf.registerChannelValue(conf.supybot.plugins.Karma, 'mostDisplay',
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registry.Integer(25, """Determines how many karma things are shown when
the most command is called.'"""))
conf.registerChannelValue(conf.supybot.plugins.Karma, 'allowSelfRating',
registry.Boolean(False, """Determines whether users can adjust the karma
of their nick."""))
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class SqliteKarmaDB(object):
def _getDb(self, channel):
filename = plugins.makeChannelFilename(channel, 'Karma.db')
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if os.path.exists(filename):
db = sqlite.connect(filename)
else:
db = sqlite.connect(filename)
cursor = db.cursor()
cursor.execute("""CREATE TABLE karma (
id INTEGER PRIMARY KEY,
name TEXT,
normalized TEXT UNIQUE ON CONFLICT IGNORE,
added INTEGER,
subtracted INTEGER
)""")
db.commit()
def p(s1, s2):
return int(ircutils.nickEqual(s1, s2))
db.create_function('nickeq', 2, p)
return db
def get(self, channel, thing):
db = self._getDb(channel)
thing = thing.lower()
cursor = db.cursor()
cursor.execute("""SELECT added, subtracted FROM karma
WHERE normalized=%s""", thing)
if cursor.rowcount == 0:
return None
else:
return map(int, cursor.fetchone())
def gets(self, channel, things):
db = self._getDb(channel)
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cursor = db.cursor()
normalizedThings = dict(zip(map(str.lower, things), things))
criteria = ' OR '.join(['normalized=%s'] * len(normalizedThings))
sql = """SELECT name, added-subtracted FROM karma
WHERE %s ORDER BY added-subtracted DESC""" % criteria
cursor.execute(sql, *normalizedThings)
L = [(name, int(karma)) for (name, karma) in cursor.fetchall()]
for (name, _) in L:
del normalizedThings[name.lower()]
neutrals = normalizedThings.values()
neutrals.sort()
return (L, neutrals)
def top(self, channel, limit):
db = self._getDb(channel)
cursor = db.cursor()
cursor.execute("""SELECT name, added-subtracted FROM karma
ORDER BY added-subtracted DESC LIMIT %s""", limit)
return [(t[0], int(t[1])) for t in cursor.fetchall()]
def bottom(self, channel, limit):
db = self._getDb(channel)
cursor = db.cursor()
cursor.execute("""SELECT name, added-subtracted FROM karma
ORDER BY added-subtracted ASC LIMIT %s""", limit)
return [(t[0], int(t[1])) for t in cursor.fetchall()]
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def rank(self, channel, thing):
db = self._getDb(channel)
cursor = db.cursor()
cursor.execute("""SELECT added-subtracted FROM karma
WHERE name=%s""", thing)
if cursor.rowcount == 0:
return None
karma = int(cursor.fetchone()[0])
cursor.execute("""SELECT COUNT(*) FROM karma
WHERE added-subtracted > %s""", karma)
rank = int(cursor.fetchone()[0])
return rank
def size(self, channel):
db = self._getDb(channel)
cursor = db.cursor()
cursor.execute("""SELECT COUNT(*) FROM karma""")
return int(cursor.fetchone()[0])
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def increment(self, channel, name):
db = self._getDb(channel)
cursor = db.cursor()
normalized = name.lower()
cursor.execute("""INSERT INTO karma VALUES (NULL, %s, %s, 0, 0)""",
name, normalized)
cursor.execute("""UPDATE karma SET added=added+1
WHERE normalized=%s""", normalized)
db.commit()
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def decrement(self, channel, name):
db = self._getDb(channel)
cursor = db.cursor()
normalized = name.lower()
cursor.execute("""INSERT INTO karma VALUES (NULL, %s, %s, 0, 0)""",
name, normalized)
cursor.execute("""UPDATE karma SET subtracted=subtracted+1
WHERE normalized=%s""", normalized)
db.commit()
def most(self, channel, kind, limit):
if kind == 'increased':
orderby = 'added'
elif kind == 'decreased':
orderby = 'subtracted'
elif kind == 'active':
orderby = 'added+subtracted'
else:
raise ValueError, 'invalid kind'
sql = """SELECT name, %s FROM karma ORDER BY %s DESC LIMIT %s""" % \
(orderby, orderby, limit)
db = self._getDb(channel)
cursor = db.cursor()
cursor.execute(sql)
return [(name, int(i)) for (name, i) in cursor.fetchall()]
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def clear(self, channel, name):
db = self._getDb(channel)
cursor = db.cursor()
normalized = name.lower()
cursor.execute("""UPDATE karma SET subtracted=0, added=0
WHERE normalized=%s""", normalized)
db.commit()
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def KarmaDB():
return SqliteKarmaDB()
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class Karma(callbacks.PrivmsgCommandAndRegexp):
addressedRegexps = ['increaseKarma', 'decreaseKarma']
def __init__(self):
self.db = KarmaDB()
callbacks.PrivmsgCommandAndRegexp.__init__(self)
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def karma(self, irc, msg, args):
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"""[<channel>] [<thing> [<thing> ...]]
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Returns the karma of <text>. If <thing> is not given, returns the top
three and bottom three karmas. If one <thing> is given, returns the
details of its karma; if more than one <thing> is given, returns the
total karma of each of the the things. <channel> is only necessary if
the message isn't sent on the channel itself.
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"""
channel = privmsgs.getChannel(msg, args)
if len(args) == 1:
name = args[0]
t = self.db.get(channel, name)
if t is None:
irc.reply('%s has neutral karma.' % name)
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else:
(added, subtracted) = t
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total = added - subtracted
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if self.registryValue('simpleOutput', channel):
s = '%s: %s' % (name, total)
else:
s = 'Karma for %r has been increased %s ' \
'and decreased %s for a total karma of %s.' % \
(name, utils.nItems('time', added),
utils.nItems('time', subtracted), total)
irc.reply(s)
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elif len(args) > 1:
(L, neutrals) = self.db.gets(channel, args)
if L:
s = utils.commaAndify(['%s: %s' % t for t in L])
if neutrals:
neutral = '. %s %s neutral karma' % \
(utils.commaAndify(neutrals),
utils.has(len(neutrals)))
s += neutral
irc.reply(s + '.')
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else:
irc.reply('I didn\'t know the karma for any of those things.')
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else: # No name was given. Return the top/bottom N karmas.
limit = self.registryValue('rankingDisplay', channel)
top = self.db.top(channel, limit)
highest = ['%r (%s)' % t for t in self.db.top(channel, limit)]
lowest = ['%r (%s)' % t for t in self.db.bottom(channel, limit)]
if not (highest and lowest):
irc.error('I have no karma for this channel.')
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return
rank = self.db.rank(channel, msg.nick)
if rank is not None:
total = self.db.size(channel)
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rankS = ' You (%s) are ranked %s out of %s.' % \
(msg.nick, rank, total)
else:
rankS = ''
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s = 'Highest karma: %s. Lowest karma: %s.%s' % \
(utils.commaAndify(highest), utils.commaAndify(lowest), rankS)
irc.reply(s)
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_mostAbbrev = utils.abbrev(['increased', 'decreased', 'active'])
def most(self, irc, msg, args):
"""[<channel>] {increased,decreased,active}
Returns the most increased, the most decreased, or the most active
(the sum of increased and decreased) karma things. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
kind = privmsgs.getArgs(args)
try:
kind = self._mostAbbrev[kind]
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L = self.db.most(channel, kind,
self.registryValue('mostDisplay', channel))
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if L:
L = ['%r: %s' % (name, i) for (name, i) in L]
irc.reply(utils.commaAndify(L))
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else:
irc.error('I have no karma for this channel.')
except (KeyError, ValueError):
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raise callbacks.ArgumentError
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def clear(self, irc, msg, args, channel):
"""[<channel>] <name>
Resets the karma of <name> to 0.
"""
name = privmsgs.getArgs(args)
self.db.clear(channel, name)
irc.replySuccess()
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clear = privmsgs.checkChannelCapability(clear, 'op')
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def increaseKarma(self, irc, msg, match):
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r"^(\S+|\(.+\))\+\+\s*$"
channel = msg.args[0]
if not ircutils.isChannel(channel):
return
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name = match.group(1).strip('()')
if not self.registryValue('allowSelfRating', msg.args[0]):
if ircutils.strEqual(name, msg.nick):
return
self.db.increment(channel, name)
if self.registryValue('response', msg.args[0]):
irc.replySuccess()
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def decreaseKarma(self, irc, msg, match):
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r"^(\S+|\(.+\))--\s*$"
channel = msg.args[0]
if not ircutils.isChannel(channel):
return
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name = match.group(1).strip('()')
if not self.registryValue('allowSelfRating', msg.args[0]):
if ircutils.strEqual(name, msg.nick):
return
self.db.decrement(channel, name)
if self.registryValue('response', msg.args[0]):
irc.replySuccess()
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Class = Karma
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: