Limnoria/plugins/Notes.py

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#!/usr/bin/env python
###
# Copyright (c) 2003, Brett Kelly
# 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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"""
A complete messaging system that allows users to leave 'notes' for other
users that can be retrieved later.
"""
from baseplugin import *
import time
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import os.path
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import operator
import sqlite
import conf
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import debug
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import utils
import ircdb
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import ircmsgs
import privmsgs
import callbacks
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import ircutils
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dbfilename = os.path.join(conf.dataDir, 'Notes.db')
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class Notes(callbacks.Privmsg):
def __init__(self):
callbacks.Privmsg.__init__(self)
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self.makeDB(dbfilename)
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def makeDB(self, filename):
"create Notes database and tables"
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if os.path.exists(filename):
self.db = sqlite.connect(filename)
self.cursor = self.db.cursor()
return
self.db = sqlite.connect(filename, converters={'bool': bool})
self.cursor = self.db.cursor()
self.cursor.execute("""CREATE TABLE users (
id INTEGER PRIMARY KEY,
name TEXT UNIQUE ON CONFLICT IGNORE
)""")
self.cursor.execute("""CREATE TABLE notes (
id INTEGER PRIMARY KEY,
from_id INTEGER,
to_id INTEGER,
added_at TIMESTAMP,
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notified BOOLEAN,
read BOOLEAN,
public BOOLEAN,
note TEXT
)""")
self.db.commit()
def _addUser(self, username):
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"Not callable from channel, used to add users to database."
self.cursor.execute('INSERT INTO users VALUES (NULL, %s)', username)
self.db.commit()
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def getUserId(self, username):
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"Returns the user id matching the given username from the users table."
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self.cursor.execute('SELECT id FROM users where name=%s', username)
if self.cursor.rowcount != 0:
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return self.cursor.fetchone()[0]
else:
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raise KeyError, username
def getUserName(self, userid):
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"Returns the username matching the given user id from the users table."
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self.cursor.execute('SELECT name FROM users WHERE id=%s', userid)
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if self.cursor.rowcount != 0:
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return self.cursor.fetchone()[0]
else:
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raise KeyError, userid
def setAsRead(self, noteid):
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"Changes a message's 'read' value to true in the notes table."
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self.cursor.execute("""UPDATE notes
SET read=1, notified=1
WHERE id=%s""", noteid)
self.db.commit()
def die(self):
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"Called when module is unloaded/reloaded."
self.db.close()
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def doJoin(self, irc, msg):
try:
name = ircdb.users.getUserName(msg.prefix)
except KeyError:
return
cursor = self.db.cursor()
cursor.execute("""SELECT COUNT(*) FROM notes, users
WHERE users.name=%s AND
notes.to_id=users.id AND
notified=0""", name)
unnotified = int(cursor.fetchone()[0])
if unnotified == 0:
return
cursor.execute("""SELECT COUNT(*) FROM notes, users
WHERE users.name=%s AND
notes.to_id=users.id AND
read=0""", name)
unread = int(cursor.fetchone()[0])
s = 'You have %s unread note%s ' \
'%s that I haven\'t told you about before now..' % \
(unread, unread == 1 and ';' or 's;', unnotified)
irc.queueMsg(ircmsgs.privmsg(msg.nick, s))
cursor.execute("""UPDATE notes
SET notified=1
WHERE notes.to_id=(SELECT id
FROM users
WHERE name=%s)""", name)
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def sendnote(self, irc, msg, args):
"""<recipient> <text>
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Sends a new note to the user specified.
"""
(name, note) = privmsgs.getArgs(args, needed=2)
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sender = msg.nick
if ircdb.users.hasUser(name):
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recipient = name
else:
n = irc.state.nickToHostmask(name)
recipient = ircdb.users.getUserName(n)
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self._addUser(sender)
self._addUser(recipient)
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senderId = self.getUserId(sender)
recipId = self.getUserId(recipient)
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if ircutils.isChannel(msg.args[0]):
public = 1
else:
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public = 0
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self.cursor.execute("""INSERT INTO notes VALUES
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(NULL, %s, %s, %s, 0, 0, %s, %s)""",
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senderId, recipId, int(time.time()),
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public, note)
self.db.commit()
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irc.reply(msg, conf.replySuccess)
def note(self, irc, msg, args):
"""<note id>
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Retrieves a single note by unique note id.
"""
noteid = privmsgs.getArgs(args)
try:
sender = ircdb.users.getUserName(msg.prefix)
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senderId = self.getUserId(sender)
except KeyError:
irc.error(msg, conf.replyNoUser)
return
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self.cursor.execute("""SELECT notes.note, notes.to_id, notes.from_id,
notes.added_at, notes.public
FROM users, notes
WHERE users.name=%s AND
notes.to_id=users.id AND
notes.id=%s
LIMIT 1""", sender, noteid)
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if self.cursor.rowcount == 0:
irc.error(msg, 'That\'s not a valid note id.')
return
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note, to_id, from_id, added_at, public = self.cursor.fetchone()
author = self.getUserName(from_id)
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if senderId != to_id:
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irc.error(msg, 'You are not the recipient of note %s.' % noteid)
return
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public = int(public)
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elapsed = utils.timeElapsed(time.time(), int(added_at))
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newnote = "%s (Sent by %s %s ago)" % (note, author, elapsed)
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if public:
irc.reply(msg, newnote)
else:
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irc.queueMsg(ircmsgs.privmsg(msg.nick, newnote))
self.setAsRead(noteid)
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def notes(self, irc, msg, args):
"""takes no arguments
Retrieves all your unread notes.
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"""
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try:
sender = ircdb.users.getUserName(msg.prefix)
except KeyError:
irc.error(msg, conf.replyNoUser)
return
self.cursor.execute("""SELECT notes.id, notes.from_id,
notes.public, notes.read
FROM users, notes
WHERE users.name=%s AND
notes.to_id=users.id AND
notes.read=0""", sender)
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count = self.cursor.rowcount
notes = self.cursor.fetchall()
L = []
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more = False
if count == 0:
irc.reply(msg, 'You have no unread notes.')
else:
for (id, from_id, public, read) in notes:
if not int(read):
sender = self.getUserName(from_id)
if int(public):
L.append(r'#%s from %s' % (id, sender))
else:
L.append(r'#%s (private)' % id)
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if more:
ircutils.shrinkList(L, ', ', 400)
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L.append('and even more notes.')
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else:
ircutils.shrinkList(L, ', ', 450)
irc.reply(msg, ', '.join(L))
def oldnotes(self, irc, msg, args):
"""takes no arguments
Returns a list of your most recent old notes.
"""
try:
sender = ircdb.users.getUserName(msg.prefix)
except KeyError:
irc.error(msg, conf.replyNoUser)
return
cursor = self.db.cursor()
cursor.execute("""SELECT notes.id FROM users, notes
WHERE notes.to_id=users.id AND
users.name=%s AND
notes.read=1""", sender)
if cursor.rowcount == 0:
irc.reply(msg, 'I could find no notes for your user.')
else:
ids = [str(t[0]) for t in cursor.fetchall()]
ids.reverse()
ircutils.shrinkList(ids, ', ', 425)
ids.reverse()
irc.reply(msg, ', '.join(ids))
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Class = Notes
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# vim: shiftwidth=4 tabstop=8 expandtab textwidth=78: