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Limnoria/plugins/Factoids.py

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#!/usr/bin/env python
###
# Copyright (c) 2002, 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.
###
"""
Handles "factoids," little tidbits of information held in a database and
available on demand via several commands.
"""
from baseplugin import *
import time
import os.path
import sqlite
import conf
import utils
import ircdb
import ircutils
import privmsgs
import callbacks
example = utils.wrapLines("""
<jemfinch> @list Factoids
<supybot> jemfinch: factoidinfo, learn, lock, randomfactoid, unlearn, unlock, whatis
<jemfinch> @learn jemfinch as the primary author of supybot.
<supybot> jemfinch: The operation succeeded.
<jemfinch> @factoidinfo jemfinch
<supybot> jemfinch: Key 'jemfinch' is not locked and has 1 factoids associated with it: #0 was added by jemfinch at 03:57 AM, August 29, 2003
<jemfinch> @lock jemfinch
<supybot> jemfinch: The operation succeeded.
<jemfinch> @factoidinfo jemfinch
<supybot> jemfinch: Key 'jemfinch' is locked and has 1 factoids associated with it: #0 was added by jemfinch at 03:57 AM, August 29, 2003
<jemfinch> @learn jemfinch as a horrible assembly programmer
<supybot> jemfinch: Error: That factoid is locked.
<jemfinch> @unlock jemfinch
<supybot> jemfinch: The operation succeeded.
<jemfinch> @learn jemfinch as a horrible assembly programmer
<supybot> jemfinch: The operation succeeded.
<jemfinch> @whatis jemfinch
<supybot> jemfinch: jemfinch could be (#0) the primary author of supybot., or (#1) a horrible assembly programmer.
<jemfinch> @unlearn jemfinch
<supybot> jemfinch: Error: 2 factoids have that key. Please specify which one to remove.
<jemfinch> @unlearn jemfinch 1
<supybot> jemfinch: The operation succeeded.
<jemfinch> @whatis jemfinch
<supybot> jemfinch: jemfinch could be (#0) the primary author of supybot..
<jemfinch> @unlearn jemfinch 0
<supybot> jemfinch: The operation succeeded.
<jemfinch> @whatis jemfinch
<supybot> jemfinch: Error: No factoid matches that key.
<jemfinch> @randomfactoid
<supybot> jemfinch: "sf.net-website": https://sourceforge.net/docman/display_doc.php?docid=4297&group_id=1; "private-attributes": http://groups.google.com/groups?q=jp+calderone+private+attributes&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=mailman.1050275130.5456.python-list%40python.org&rnum=1; "CFnews": http://inkedmn.homelinux.org/~inkedmn/vbcustom1.html; "CFnews": something else
<jemfinch> @whatis cfnews
<supybot> jemfinch: cfnews could be (#0) http://inkedmn.homelinux.org/~inkedmn/vbcustom1.html, or (#1) something else.
<jemfinch> @unlearn cfnews 1
""")
class Factoids(ChannelDBHandler, callbacks.Privmsg):
def __init__(self):
ChannelDBHandler.__init__(self)
callbacks.Privmsg.__init__(self)
def makeDb(self, filename):
if os.path.exists(filename):
return sqlite.connect(filename)
db = sqlite.connect(filename)
cursor = db.cursor()
cursor.execute("""CREATE TABLE keys (
id INTEGER PRIMARY KEY,
key TEXT UNIQUE ON CONFLICT IGNORE,
locked BOOLEAN
)""")
cursor.execute("""CREATE TABLE factoids (
id INTEGER PRIMARY KEY,
key_id INTEGER,
added_by TEXT,
added_at TIMESTAMP,
fact TEXT
)""")
cursor.execute("""CREATE TRIGGER remove_factoids
BEFORE DELETE ON keys
BEGIN
DELETE FROM factoids WHERE key_id = old.id;
END
""")
db.commit()
return db
def learn(self, irc, msg, args):
"""[<channel>] <key> as <value>
Associates <key> with <value>. <channel> is only necessary if the
message isn't sent on the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
try:
i = args.index('as')
except ValueError:
raise callbacks.ArgumentError
args.pop(i)
key = ' '.join(args[:i])
factoid = ' '.join(args[i:])
db = self.getDb(channel)
cursor = db.cursor()
cursor.execute("SELECT id, locked FROM keys WHERE key LIKE %s", key)
if cursor.rowcount == 0:
cursor.execute("""INSERT INTO keys VALUES (NULL, %s, 0)""", key)
db.commit()
cursor.execute("SELECT id, locked FROM keys WHERE key LIKE %s",key)
(id, locked) = map(int, cursor.fetchone())
capability = ircdb.makeChannelCapability(channel, 'factoids')
if not locked:
if not ircdb.checkCapability(msg.prefix, capability):
irc.error(msg, conf.replyNoCapability % capability)
return
if ircdb.users.hasUser(msg.prefix):
name = ircdb.users.getUserName(msg.prefix)
else:
name = msg.nick
cursor.execute("""INSERT INTO factoids VALUES
(NULL, %s, %s, %s, %s)""",
id, name, int(time.time()), factoid)
db.commit()
irc.reply(msg, conf.replySuccess)
else:
irc.error(msg, 'That factoid is locked.')
def whatis(self, irc, msg, args):
"""[<channel>] <key> [<number>]
Looks up the value of <key> in the factoid database. If given a
number, will return only that exact factoid. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
key = privmsgs.getArgs(args)
db = self.getDb(channel)
cursor = db.cursor()
cursor.execute("""SELECT factoids.fact FROM factoids, keys WHERE
keys.key LIKE %s AND factoids.key_id=keys.id
ORDER BY factoids.id
LIMIT 20""", key)
if cursor.rowcount == 0:
irc.error(msg, 'No factoid matches that key.')
else:
factoids = []
counter = 0
for result in cursor.fetchall():
factoids.append('(#%s) %s' % (counter, result[0]))
counter += 1
totalResults = len(factoids)
if ircutils.shrinkList(factoids, ', or ', 400):
s = '%s could be %s (%s shown out of %s)' % \
(key, ', or '.join(factoids),
utils.nItems(len(factoids), 'result'), totalResults)
else:
s = '%s could be %s' % (key, ', or '.join(factoids))
irc.reply(msg, s)
def lock(self, irc, msg, args):
"""[<channel>] <key>
Locks the factoid(s) associated with <key> so that they cannot be
removed or added to. <channel> is only necessary if the message isn't
sent in the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
key = privmsgs.getArgs(args)
db = self.getDb(channel)
capability = ircdb.makeChannelCapability(channel, 'factoids')
if ircdb.checkCapability(msg.prefix, capability):
cursor = db.cursor()
cursor.execute("UPDATE keys SET locked=1 WHERE key LIKE %s", key)
db.commit()
irc.reply(msg, conf.replySuccess)
else:
irc.error(msg, conf.replyNoCapability % capability)
def unlock(self, irc, msg, args):
"""[<channel>] <key>
Unlocks the factoid(s) associated with <key> so that they can be
removed or added to. <channel> is only necessary if the message isn't
sent in the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
key = privmsgs.getArgs(args)
db = self.getDb(channel)
capability = ircdb.makeChannelCapability(channel, 'factoids')
if ircdb.checkCapability(msg.prefix, capability):
cursor = db.cursor()
cursor.execute("UPDATE keys SET locked=0 WHERE key LIKE %s",key)
db.commit()
irc.reply(msg, conf.replySuccess)
else:
irc.error(msg, conf.replyNoCapability % capability)
def unlearn(self, irc, msg, args):
"""[<channel>] <key> [<number>|*]
Removes the factoid <key> from the factoids database. If there are
more than one factoid with such a key, a number is necessary to
determine which one should be removed. A * can be used to remove all
factoids associated with a key. <channel> is only necessary if
the message isn't sent in the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
if args[-1].isdigit():
number = int(args.pop())
elif args[-1] == '*':
del args[-1]
number = True
else:
number = None
key = privmsgs.getArgs(args)
db = self.getDb(channel)
capability = ircdb.makeChannelCapability(channel, 'factoids')
if ircdb.checkCapability(msg.prefix, capability):
cursor = db.cursor()
cursor.execute("""SELECT keys.id, factoids.id
FROM keys, factoids
WHERE key LIKE %s AND
factoids.key_id=keys.id""", key)
if cursor.rowcount == 0:
irc.error(msg, 'There is no such factoid.')
elif cursor.rowcount == 1 or number is True:
(id, _) = cursor.fetchone()
cursor.execute("""DELETE FROM factoids WHERE key_id=%s""", id)
cursor.execute("""DELETE FROM keys WHERE key LIKE %s""", key)
db.commit()
irc.reply(msg, conf.replySuccess)
else:
if number is not None:
results = cursor.fetchall()
try:
(_, id) = results[number]
except IndexError:
irc.error(msg, 'Invalid factoid number.')
return
cursor.execute("DELETE FROM factoids WHERE id=%s", id)
db.commit()
irc.reply(msg, conf.replySuccess)
else:
irc.error(msg, '%s factoids have that key. ' \
'Please specify which one to remove, ' \
'or use * to designate all of them.' % \
cursor.rowcount)
else:
irc.error(msg, conf.replyNoCapability % capability)
def randomfactoid(self, irc, msg, args):
"""[<channel>]
Returns a random factoid from the database for <channel>. <channel>
is only necessary if the message isn't sent in the channel itself.
"""
channel = privmsgs.getChannel(msg, args)
db = self.getDb(channel)
cursor = db.cursor()
cursor.execute("""SELECT fact, key_id FROM factoids
ORDER BY random()
LIMIT 10""")
if cursor.rowcount != 0:
L = []
for (factoid, id) in cursor.fetchall():
cursor.execute("""SELECT key FROM keys WHERE id=%s""", id)
(key,) = cursor.fetchone()
L.append('"%s": %s' % (ircutils.bold(key), factoid))
irc.reply(msg, ircutils.privmsgPayload(L, '; ', 400))
else:
irc.error(msg, 'I couldn\'t find a factoid.')
def factoidinfo(self, irc, msg, args):
"""[<channel>] <key>
Gives information about the factoid(s) associated with <key>.
<channel> is only necessary if the message isn't sent in the channel
itself.
"""
channel = privmsgs.getChannel(msg, args)
key = privmsgs.getArgs(args)
db = self.getDb(channel)
cursor = db.cursor()
cursor.execute("SELECT id, locked FROM keys WHERE key LIKE %s", key)
if cursor.rowcount == 0:
irc.error(msg, 'No factoid matches that key.')
return
(id, locked) = map(int, cursor.fetchone())
cursor.execute("""SELECT added_by, added_at FROM factoids
WHERE key_id=%s
ORDER BY id""", id)
factoids = cursor.fetchall()
L = []
counter = 0
for (added_by, added_at) in factoids:
added_at = time.strftime(conf.humanTimestampFormat,
time.localtime(int(added_at)))
L.append('#%s was added by %s at %s' % (counter,added_by,added_at))
counter += 1
factoids = '; '.join(L)
s = 'Key %r is %s and has %s factoids associated with it: %s' % \
(key, locked and 'locked' or 'not locked', counter, factoids)
irc.reply(msg, s)
Class = Factoids
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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