Limnoria/plugins/Notes.py

#!/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.
###

"""
A complete messaging system that allows users to leave 'notes' for other
users that can be retrieved later.
"""

from baseplugin import *

import time
import os.path
from itertools import imap

import sqlite

import conf
import debug
import utils
import ircdb
import ircmsgs
import privmsgs
import ircutils
import callbacks

dbfilename = os.path.join(conf.dataDir, 'Notes.db')

example = utils.wrapLines("""
<jemfinch> @list Notes
<supybot> note, notes, oldnotes, sendnote
<jemfinch> @notes
<supybot> You have no unread notes.
<jemfinch> @oldnotes
<supybot> 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 15, 17, 18, 19, 25, 26, 27, 28, 37, 40, 41, 47
<jemfinch> @note 1
<supybot> I read their site, lurk on their forums and help out with the dc competitions (Sent by jamessan 18 weeks, 1 day, 6 hours, 46 minutes, and 53 seconds ago)
<jemfinch> @note 28
<supybot> er, you might want to change the ChannelStats module to ChannelDB in your conf file as well (Sent by Strike 2 weeks, 2 days, 20 hours, 11 minutes, and 58 seconds ago)
<jemfinch> @sendnote jemfinch hey, this is a note from yourself.
<supybot> The operation succeeded.
* jemfinch blah blah (he'll tell me I have unread notes)
<supybot> You have 1 unread note; 1 that I haven't told you about before now..
<jemfinch> @notes
<supybot> #49 from jemfinch
<jemfinch> @note 49
<supybot> hey, this is a note from yourself. (Sent by jemfinch 20 seconds ago)
""")

class Notes(callbacks.Privmsg):
    def __init__(self):
        callbacks.Privmsg.__init__(self)
        self.makeDB(dbfilename)

    def makeDB(self, filename):
        "create Notes database and tables"
        if os.path.exists(filename):
            self.db = sqlite.connect(filename)
            return
        self.db = sqlite.connect(filename, converters={'bool': bool})
        cursor = self.db.cursor()
        cursor.execute("""CREATE TABLE notes (
                          id INTEGER PRIMARY KEY,
                          from_id INTEGER,
                          to_id INTEGER,
                          added_at TIMESTAMP,
                          notified BOOLEAN,
                          read BOOLEAN,
                          public BOOLEAN,
                          note TEXT
                          )""")
        self.db.commit()

    def setAsRead(self, id):
        cursor = self.db.cursor()
        cursor.execute("""UPDATE notes
                          SET read=1, notified=1
                          WHERE id=%s""", id)
        self.db.commit()

    def die(self):
        self.db.commit()
        self.db.close()
        del self.db

    def doPrivmsg(self, irc, msg):
        try:
            id = ircdb.users.getUserId(msg.prefix)
        except KeyError:
            callbacks.Privmsg.doPrivmsg(self, irc, msg)
            return
        cursor = self.db.cursor()
        cursor.execute("""SELECT COUNT(*) FROM notes
                          WHERE notes.to_id=%s AND notified=0""", id)
        unnotified = int(cursor.fetchone()[0])
        if unnotified != 0:
            cursor.execute("""SELECT COUNT(*) FROM notes
                              WHERE notes.to_id=%s AND read=0""", id)
            unread = int(cursor.fetchone()[0])
            s = 'You have %s; ' \
                '%s that I haven\'t told you about before now..' % \
                (utils.nItems(unread, 'note', 'unread'), unnotified)
            irc.queueMsg(ircmsgs.privmsg(msg.nick, s))
            cursor.execute("""UPDATE notes SET notified=1
                              WHERE notes.to_id=%s""", id)
            self.db.commit()
        callbacks.Privmsg.doPrivmsg(self, irc, msg)

    def sendnote(self, irc, msg, args):
        """<recipient> <text>

        Sends a new note to the user specified.
        """
        (name, note) = privmsgs.getArgs(args, needed=2)
        if ircdb.users.hasUser(name):
            toId = ircdb.users.getUserId(name)
        else:
            # name must be a nick, we'll try that.
            try:
                hostmask = irc.state.nickToHostmask(name)
                toId = ircdb.users.getUserId(hostmask)
            except KeyError:
                irc.error(msg, conf.replyNoUser)
                return
        try:
            fromId = ircdb.users.getUserId(msg.prefix)
        except KeyError:
            irc.error(msg, conf.replyNotRegistered)
            return
        if ircutils.isChannel(msg.args[0]):
            public = 1
        else:
            public = 0
        cursor = self.db.cursor()
        cursor.execute("""INSERT INTO notes VALUES
                          (NULL, %s, %s, %s, 0, 0, %s, %s)""",
                       fromId, toId, int(time.time()), public, note)
        self.db.commit()
        irc.reply(msg, conf.replySuccess)

    def note(self, irc, msg, args):
        """<note id>

        Retrieves a single note by its unique note id.
        """
        noteid = privmsgs.getArgs(args)
        try:
            id = ircdb.users.getUserId(msg.prefix)
        except KeyError:
            irc.error(msg, conf.replyNotRegistered)
            return
        cursor = self.db.cursor()
        cursor.execute("""SELECT note, to_id, from_id, added_at, public
                          FROM notes
                          WHERE notes.to_id=%s AND notes.id=%s""",
                       id, noteid)
        if cursor.rowcount == 0:
            irc.error(msg, 'That\'s not a valid note id for you.')
            return
        (note, toId, fromId, addedAt, public) = cursor.fetchone()
        (toId,fromId,addedAt,public) = map(int, (toId,fromId,addedAt,public))
        author = ircdb.users.getUser(fromId).name
        elapsed = utils.timeElapsed(time.time() - addedAt)
        newnote = "%s (Sent by %s %s ago)" % (note, author, elapsed)
        if public:
            irc.reply(msg, newnote)
        else:
            ### FIXME: IrcObjectProxy should offer a private keyword arg.
            irc.queueMsg(ircmsgs.privmsg(msg.nick, newnote))
        self.setAsRead(noteid)

    def _formatNoteData(self, msg, id, fromId, public):
        (id, fromId, public) = map(int, (id, fromId, public))
        if public or not ircutils.isChannel(msg.args[0]):
            sender = ircdb.users.getUser(fromId).name
            return '#%s from %s' % (id, sender)
        else:
            return '#%s (private)' % id

    def notes(self, irc, msg, args):
        """takes no arguments

        Retrieves the ids of all your unread notes.
        """
        try:
            id = ircdb.users.getUserId(msg.prefix)
        except KeyError:
            irc.error(msg, conf.replyNotRegistered)
            return
        cursor = self.db.cursor()
        cursor.execute("""SELECT id, from_id, public
                          FROM notes
                          WHERE notes.to_id=%s AND notes.read=0""", id)
        count = cursor.rowcount
        L = []
        if count == 0:
            irc.reply(msg, 'You have no unread notes.')
        else:
            L = [self._formatNoteData(msg, *t) for t in cursor.fetchall()]
            irc.reply(msg, utils.commaAndify(L))

    def oldnotes(self, irc, msg, args):
        """takes no arguments

        Returns a list of your most recent old notes.
        """
        try:
            id = ircdb.users.getUserId(msg.prefix)
        except KeyError:
            irc.error(msg, conf.replyNotRegistered)
            return
        cursor = self.db.cursor()
        cursor.execute("""SELECT id, from_id, public
                          FROM notes
                          WHERE notes.to_id=%s AND notes.read=1""", id)
        if cursor.rowcount == 0:
            irc.reply(msg, 'I couldn\'t find any read notes for your user.')
        else:
            ids = [self._formatNoteData(msg, *t) for t in cursor.fetchall()]
            ids.reverse()
            irc.reply(msg, utils.commaAndify(ids))



Class = Notes

# vim: shiftwidth=4 tabstop=8 expandtab textwidth=78: