mirror of https://github.com/Mikaela/Limnoria.git
256 lines
9.9 KiB
Python
256 lines
9.9 KiB
Python
#!/usr/bin/env python
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###
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# Copyright (c) 2003, Daniel DiPaolo
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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"""
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A module to allow each channel to have "news" which people will be notified of
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when they join the channel. News items may have expiration dates.
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"""
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__revision__ = "$Id$"
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import plugins
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import os
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import time
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import conf
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import ircdb
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import utils
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import privmsgs
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import callbacks
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try:
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import sqlite
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except ImportError:
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raise callbacks.Error, 'You need to have PySQLite installed to use this ' \
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'plugin. Download it at <http://pysqlite.sf.net/>'
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class News(plugins.ChannelDBHandler, callbacks.Privmsg):
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def __init__(self):
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plugins.ChannelDBHandler.__init__(self)
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callbacks.Privmsg.__init__(self)
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self.removeOld = False
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def makeDb(self, filename):
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if os.path.exists(filename):
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return sqlite.connect(filename)
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db = sqlite.connect(filename)
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cursor = db.cursor()
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cursor.execute("""CREATE TABLE news (
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id INTEGER PRIMARY KEY,
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subject TEXT,
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item TEXT,
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added_at TIMESTAMP,
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expires_at TIMESTAMP,
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added_by TEXT
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)""")
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db.commit()
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return db
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def add(self, irc, msg, args, channel):
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"""[<channel>] <expires> <subject>: <text>
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Adds a given news item of <text> to a channel with the given <subject>.
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If <expires> isn't 0, that news item will expire <expires> seconds from
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now. <channel> is only necessary if the message isn't sent in the
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channel itself.
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"""
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# Parse out the args
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i = None
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for i, arg in enumerate(args):
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if arg.endswith(':'):
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i += 1
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break
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if not i:
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raise callbacks.ArgumentError
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added_at = int(time.time())
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expire_interval = int(args[0])
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expires = expire_interval and (added_at + expire_interval)
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subject = ' '.join(args[1:i])
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text = ' '.join(args[i:])
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# Set the other stuff needed for the insert.
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if ircdb.users.hasUser(msg.prefix):
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name = ircdb.users.getUser(msg.prefix).name
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else:
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name = msg.nick
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("INSERT INTO news VALUES (NULL, %s, %s, %s, %s, %s)",
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subject[:-1], text, added_at, expires, name)
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db.commit()
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irc.replySuccess()
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add = privmsgs.checkChannelCapability(add, 'news')
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def _readnews(self, irc, msg, args):
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"""[<channel>] <number>
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Display the text for news item with id <number> from <channel>.
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<channel> is only necessary if the message isn't sent in the channel
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itself.
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"""
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channel = privmsgs.getChannel(msg, args)
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id = privmsgs.getArgs(args)
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT news.item, news.subject, news.added_at,
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news.expires_at, news.added_by FROM news
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WHERE news.id=%s""", id)
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if cursor.rowcount == 0:
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irc.error('No news item matches that id.')
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else:
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item, subject, added_at, expires_at, added_by = cursor.fetchone()
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if int(expires_at) == 0:
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s = '%s (Subject: "%s", added by %s on %s)' % \
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(item, subject, added_by,
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time.strftime(conf.supybot.humanTimestampFormat(),
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time.localtime(int(added_at))))
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else:
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s = '%s (Subject: "%s", added by %s on %s, expires at %s)' % \
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(item, subject, added_by,
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time.strftime(conf.supybot.humanTimestampFormat(),
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time.localtime(int(added_at))),
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time.strftime(conf.supybot.humanTimestampFormat(),
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time.localtime(int(expires_at))))
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irc.reply(s)
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def news(self, irc, msg, args):
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"""[<channel>] [<number>]
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Display the news items for <channel> in the format of '(#id) subject'.
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If <number> is given, retrieve only that news item; otherwise retrieve
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all news items. <channel> is only necessary if the message isn't sent
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in the channel itself.
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"""
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channel = privmsgs.getChannel(msg, args)
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number = privmsgs.getArgs(args, required=0, optional=1)
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if number:
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self._readnews(irc, msg, [channel, number])
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return
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT news.id, news.subject FROM news
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WHERE news.expires_at > %s
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OR news.expires_at=0""", int(time.time()))
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if cursor.rowcount == 0:
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irc.reply('No news for %s.' % channel)
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else:
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items = ['(#%s) %s' % (id, s) for (id, s) in cursor.fetchall()]
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s = 'News for %s: %s' % (channel, '; '.join(items))
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irc.reply(s)
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def remove(self, irc, msg, args, channel):
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"""[<channel>] <number>
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Removes the news item with id <number> from <channel>. <channel> is
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only necessary if the message isn't sent in the channel itself.
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"""
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id = privmsgs.getArgs(args)
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT * FROM news WHERE id=%s""", id)
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if cursor.rowcount == 0:
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irc.error('No news item matches that id.')
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else:
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cursor.execute("""DELETE FROM news WHERE news.id = %s""", id)
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db.commit()
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irc.replySuccess()
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remove = privmsgs.checkChannelCapability(remove, 'news')
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def change(self, irc, msg, args, channel):
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"""[<channel>] <number> <regexp>
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Changes the news item with id <number> from <channel> according to the
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regular expression <regexp>. <regexp> should be of the form
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s/text/replacement/flags. <channel> is only necessary if the message
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isn't sent on the channel itself.
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"""
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(id, regexp) = privmsgs.getArgs(args, required=2)
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try:
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replacer = utils.perlReToReplacer(regexp)
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except ValueError, e:
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irc.error(str(e))
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return
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT subject, item FROM news WHERE id=%s""", id)
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if cursor.rowcount == 0:
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irc.error('No news item matches that id.')
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return
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(subject, item) = cursor.fetchone()
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s = '%s: %s' % (subject, item)
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s = replacer(s)
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(newSubject, newItem) = s.split(': ')
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cursor.execute("""UPDATE news SET subject=%s, item=%s WHERE id=%s""",
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newSubject, newItem, id)
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irc.replySuccess()
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change = privmsgs.checkChannelCapability(change, 'news')
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def old(self, irc, msg, args):
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"""[<channel>] [<number>]
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Returns the old news item for <channel> with id <number>. If no number
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is given, returns all the old news items in reverse order. <channel>
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is only necessary if the message isn't sent in the channel itself.
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"""
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channel = privmsgs.getChannel(msg, args)
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id = privmsgs.getArgs(args, required=0, optional=1)
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db = self.getDb(channel)
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cursor = db.cursor()
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if id:
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try:
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id = int(id)
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except ValueError:
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irc.error('%r isn\'t a valid id.' % id)
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return
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cursor.execute("""SELECT subject, item FROM news WHERE id=%s""",id)
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if cursor.rowcount == 0:
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irc.error('No news item matches that id.')
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else:
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(subject, item) = cursor.fetchone()
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irc.reply('%s: %s' % (cursor, item))
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else:
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cursor.execute("""SELECT id, subject FROM news
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WHERE expires_at <> 0 AND expires_at < %s
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ORDER BY id DESC""", int(time.time()))
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if cursor.rowcount == 0:
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irc.error('I have no news for that channel.')
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return
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subjects = ['#%s: %s' % (id, s) for (id, s) in cursor.fetchall()]
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irc.reply(utils.commaAndify(subjects))
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Class = News
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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