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Limnoria/plugins/News/plugin.py

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###
# Copyright (c) 2003-2005, 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.
###
import time
import supybot.dbi as dbi
import supybot.conf as conf
import supybot.utils as utils
from supybot.commands import *
import supybot.plugins as plugins
import supybot.ircutils as ircutils
import supybot.callbacks as callbacks
from supybot.i18n import PluginInternationalization, internationalizeDocstring
_ = PluginInternationalization('News')
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class DbiNewsDB(plugins.DbiChannelDB):
class DB(dbi.DB):
class Record(dbi.Record):
__fields__ = [
'subject',
'text',
'at',
'expires',
'by',
]
def __str__(self):
user = plugins.getUserName(self.by)
if self.expires == 0:
s = format(_('%s (Subject: %q, added by %s on %s)'),
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self.text, self.subject, self.by,
utils.str.timestamp(self.at))
else:
s = format(_('%s (Subject: %q, added by %s on %s, '
'expires at %s)'),
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self.text, self.subject, user,
utils.str.timestamp(self.at),
utils.str.timestamp(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.Plugin):
def __init__(self, irc):
self.__parent = super(News, self)
self.__parent.__init__(irc)
self.db = NewsDB()
def die(self):
self.__parent.die()
self.db.close()
@internationalizeDocstring
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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(format(_('(News item #%i added)'), id))
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add = wrap(add, ['channeldb', 'user', 'now', 'expiry', 'text'])
@internationalizeDocstring
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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 = [format('(#%i) %s', R.id, R.subject) for R in records]
s = format(_('News for %s: %s'), channel, '; '.join(items))
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irc.reply(s)
except dbi.NoRecordError:
irc.reply(format(_('No news for %s.'), channel))
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else:
try:
record = self.db.get(channel, id)
irc.reply(str(record))
except dbi.NoRecordError, id:
irc.errorInvalid(_('news item id'), id)
news = wrap(news, ['channeldb', additional('positiveInt')])
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@internationalizeDocstring
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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:
self.db.remove(channel, id)
irc.replySuccess()
except dbi.NoRecordError:
irc.errorInvalid(_('news item id'), id)
remove = wrap(remove, ['channeldb', 'positiveInt'])
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@internationalizeDocstring
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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:
self.db.change(channel, id, replacer)
irc.replySuccess()
except dbi.NoRecordError:
irc.errorInvalid(_('news item id'), id)
change = wrap(change, ['channeldb', 'positiveInt', 'regexpReplacer'])
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@internationalizeDocstring
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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:
record = self.db.getOld(channel, id)
irc.reply(str(record))
except dbi.NoRecordError, id:
irc.errorInvalid(_('news item id'), id)
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else:
try:
records = self.db.getOld(channel)
items = [format('(#%i) %s', R.id, R.subject) for R in records]
s = format(_('Old news for %s: %s'), channel, '; '.join(items))
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irc.reply(s)
except dbi.NoRecordError:
irc.reply(format(_('No old news for %s.'), channel))
old = wrap(old, ['channeldb', additional('positiveInt')])
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Class = News
# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79: