### # Copyright (c) 2003, Daniel DiPaolo # 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 module to allow each channel to have "news". News items may have expiration dates. """ __revision__ = "$Id$" import os import time import supybot.dbi as dbi import supybot.conf as conf import supybot.ircdb as ircdb import supybot.utils as utils import supybot.plugins as plugins from supybot.commands import additional, wrap import supybot.ircutils as ircutils import supybot.privmsgs as privmsgs import supybot.callbacks as callbacks class DbiNewsDB(plugins.DbiChannelDB): class DB(dbi.DB): class Record(dbi.Record): __fields__ = [ 'subject', 'text', 'at', 'expires', 'by', ] def __str__(self): format = conf.supybot.humanTimestampFormat() try: user = ircdb.users.getUser(int(self.by)).name except ValueError: user = self.by except KeyError: user = 'a user that is no longer registered' if int(self.expires) == 0: s = '%s (Subject: "%s", added by %s on %s)' % \ (self.text, self.subject, self.by, time.strftime(format, time.localtime(int(self.at)))) else: s = '%s (Subject: "%s", added by %s on %s, expires at %s)' s = s % (self.text, self.subject, user, time.strftime(format, time.localtime(int(self.at))), time.strftime(format, time.localtime(int(self.expires)))) return s def __init__(self, filename): # We use self.__class__ here because apparently DB isn't in our # scope. python-- self.__parent = super(self.__class__, self) self.__parent.__init__(filename) def add(self, subject, text, at, expires, by): return self.__parent.add(self.Record(at=at, by=by, text=text, subject=subject, expires=expires)) def getOld(self, id=None): now = time.time() if id: return self.get(id) else: L = [R for R in self if R.expires < now and R.expires != 0] if not L: raise dbi.NoRecordError else: return L def get(self, id=None): now = time.time() if id: return self.__parent.get(id) else: L = [R for R in self if R.expires >= now or R.expires == 0] if not L: raise dbi.NoRecordError return L def change(self, id, f): news = self.get(id) s = '%s: %s' % (news.subject, news.text) s = f(s) (news.subject, news.text) = s.split(': ', 1) self.set(id, news) NewsDB = plugins.DB('News', {'flat': DbiNewsDB}) class News(callbacks.Privmsg): def __init__(self): self.__parent = super(News, self) self.__parent.__init__() self.db = NewsDB() def die(self): self.__parent.die() self.db.close() def add(self, irc, msg, args, channel, user, at, expires, news): """[<channel>] <expires> <subject>: <text> Adds a given news item of <text> to a channel with the given <subject>. If <expires> isn't 0, that news item will expire <expires> seconds from now. <channel> is only necessary if the message isn't sent in the channel itself. """ try: (subject, text) = news.split(': ', 1) except ValueError: raise callbacks.ArgumentError id = self.db.add(channel, subject, text, at, expires, user.id) irc.replySuccess('(News item #%s added)' % id) add = wrap(add, ['channeldb', 'user', 'now', 'expiry', 'text']) def news(self, irc, msg, args, channel, id): """[<channel>] [<id>] Display the news items for <channel> in the format of '(#id) subject'. If <id> is given, retrieve only that news item; otherwise retrieve all news items. <channel> is only necessary if the message isn't sent in the channel itself. """ if not id: try: records = self.db.get(channel) items = ['(#%s) %s' % (R.id, R.subject) for R in records] s = 'News for %s: %s' % (channel, '; '.join(items)) irc.reply(s) except dbi.NoRecordError: irc.reply('No news for %s.' % channel) else: try: if id < 1: raise ValueError record = self.db.get(channel, id) irc.reply(str(record)) except dbi.NoRecordError, id: irc.errorInvalid('news item id', id) except ValueError: irc.errorInvalid('news item id', id, '<id> must be a positive integer.') news = wrap(news, ['channeldb', additional('int')]) def remove(self, irc, msg, args, channel, id): """[<channel>] <id> Removes the news item with <id> from <channel>. <channel> is only necessary if the message isn't sent in the channel itself. """ try: if id < 1: raise ValueError self.db.remove(channel, id) irc.replySuccess() except dbi.NoRecordError: irc.errorInvalid('news item id', id) except ValueError: irc.errorInvalid('news item id', id, '<id> must be a positive integer.') remove = wrap(remove, ['channeldb', 'int']) def change(self, irc, msg, args, channel, id, replacer): """[<channel>] <id> <regexp> Changes the news item with <id> from <channel> according to the regular expression <regexp>. <regexp> should be of the form s/text/replacement/flags. <channel> is only necessary if the message isn't sent on the channel itself. """ try: if id < 1: raise ValueError self.db.change(channel, id, replacer) irc.replySuccess() except dbi.NoRecordError: irc.errorInvalid('news item id', id) except ValueError: irc.errorInvalid('news item id', id, '<id> must be a positive integer.') change = wrap(change, ['channeldb', 'int', 'regexpReplacer']) def old(self, irc, msg, args, channel, id): """[<channel>] [<id>] Returns the old news item for <channel> with <id>. If no number is given, returns all the old news items in reverse order. <channel> is only necessary if the message isn't sent in the channel itself. """ if id: try: if id < 1: raise ValueError record = self.db.getOld(channel, id) irc.reply(str(record)) except dbi.NoRecordError, id: irc.errorInvalid('news item id', id) except ValueError: irc.errorInvalid('news item id', id, '<id> must be a positive integer.') else: try: records = self.db.getOld(channel) items = ['(#%s) %s' % (R.id, R.subject) for R in records] s = 'Old news for %s: %s' % (channel, '; '.join(items)) irc.reply(s) except dbi.NoRecordError: irc.reply('No old news for %s.' % channel) old = wrap(old, ['channeldb', additional('int')]) Class = News # vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: