Limnoria/plugins/Topic.py

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2003-03-12 07:26:59 +01:00
#!/usr/bin/env python
###
# Copyright (c) 2002, Jeremiah Fincher
# 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.
###
"""
Provides commands for manipulating channel topics.
"""
import plugins
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import re
import random
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import conf
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import debug
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import utils
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import ircdb
import ircmsgs
import privmsgs
import callbacks
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class Topic(callbacks.Privmsg):
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topicSeparator = ' || '
topicFormatter = '%s (%s)'
topicUnformatter = re.compile('(.*) \((\S+)\)')
def _splitTopic(self, topic):
return filter(None, topic.split(self.topicSeparator))
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def add(self, irc, msg, args, channel):
"""[<channel>] <topic>
Adds <topic> to the topics for <channel>. <channel> is only necessary
if the message isn't sent in the channel itself.
"""
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topic = privmsgs.getArgs(args)
if self.topicSeparator in topic:
s = 'You can\'t have %s in your topic' % self.topicSeparator
irc.error(msg, s)
return
currentTopic = irc.state.getTopic(channel)
try:
name = ircdb.users.getUser(msg.prefix).name
except KeyError:
name = msg.nick
formattedTopic = self.topicFormatter % (topic, name)
if currentTopic:
newTopic = self.topicSeparator.join((currentTopic,
formattedTopic))
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else:
newTopic = formattedTopic
irc.queueMsg(ircmsgs.topic(channel, newTopic))
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add = privmsgs.checkChannelCapability(add, 'topic')
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def shuffle(self, irc, msg, args, channel):
"""[<channel>]
Shuffles the topics in <channel>. <channel> is only necessary if the
message isn't sent in the channel itself.
"""
newtopic = irc.state.getTopic(channel)
topics = self._splitTopic(irc.state.getTopic(channel))
if len(topics) == 0 or len(topics) == 1:
irc.error(msg, 'I can\'t shuffle 1 or fewer topics.')
return
elif len(topics) == 2:
topics.reverse()
newtopic = self.topicSeparator.join(topics)
else:
random.shuffle(topics)
newtopic = self.topicSeparator.join(topics)
while newtopic == irc.state.getTopic(channel):
random.shuffle(topics)
newtopic = self.topicSeparator.join(topics)
irc.queueMsg(ircmsgs.topic(channel, newtopic))
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shuffle = privmsgs.checkChannelCapability(shuffle, 'topic')
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def get(self, irc, msg, args, channel):
"""[<channel>] <number>
Returns topic number <number> from <channel>. <number> is a one-based
index into the topics. <channel> is only necessary if the message
isn't sent in the channel itself.
"""
number = privmsgs.getArgs(args)
try:
number = int(number)
if number > 0:
number -= 1
elif number == 0:
irc.error(msg, 'That\'s not a valid topic number.')
return
except ValueError:
irc.error(msg, 'The argument must be a valid integer.')
return
topics = self._splitTopic(irc.state.getTopic(channel))
if topics:
try:
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match = self.topicUnformatter.match(topics[number])
if match:
irc.reply(msg, match.group(1))
else:
irc.reply(msg, topics[number])
except IndexError:
irc.error(msg, 'That\'s not a valid topic.')
else:
irc.error(msg, 'There are no topics to get.')
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get = privmsgs.channel(get)
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def change(self, irc, msg, args, channel):
"""[<channel>] <number> <regexp>
Changes the topic number <number> on <channel> according to the regular
expression <regexp>. <number> is the one-based index into the topics;
<regexp> is a regular expression of the form
s/regexp/replacement/flags. <channel> is only necessary if the message
isn't sent in the channel itself.
"""
(number, regexp) = privmsgs.getArgs(args, required=2)
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try:
number = int(number)
if number > 0:
number -= 1
elif number == 0:
irc.error(msg, 'That\'s not a valid topic number.')
return
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except ValueError:
irc.error(msg, 'The <number> argument must be a number.')
return
try:
replacer = utils.perlReToReplacer(regexp)
except ValueError, e:
irc.error(msg, 'The regexp wasn\'t valid: %s' % e.args[0])
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return
except re.error, e:
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irc.error(msg, debug.exnToString(e))
return
topics = self._splitTopic(irc.state.getTopic(channel))
if not topics:
irc.error(msg, 'There are no topics to change.')
return
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topic = topics.pop(number)
match = self.topicUnformatter.match(topic)
if match is None:
name = ''
else:
(topic, name) = match.groups()
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try:
senderName = ircdb.users.getUser(msg.prefix).name
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except KeyError:
irc.error(msg, conf.replyNoUser)
return
if name and name != senderName and \
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not ircdb.checkCapabilities(msg.prefix, ('op', 'admin')):
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irc.error(msg, 'You can only modify your own topics.')
return
newTopic = self.topicFormatter % (replacer(topic), name)
if number < 0:
number = len(topics)+1+number
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topics.insert(number, newTopic)
newTopic = self.topicSeparator.join(topics)
irc.queueMsg(ircmsgs.topic(channel, newTopic))
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change = privmsgs.checkChannelCapability(change, 'topic')
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def remove(self, irc, msg, args, channel):
"""[<channel>] <number>
Removes topic <number> from the topic for <channel> Topics are
numbered starting from 1; you can also use negative indexes to refer
to topics starting the from the end of the topic. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
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try:
number = int(privmsgs.getArgs(args))
if number > 0:
number -= 1
elif number == 0:
irc.error(msg, 'That\'s not a valid topic number.')
return
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except ValueError:
irc.error(msg, 'The argument must be a number.')
return
topics = self._splitTopic(irc.state.getTopic(channel))
try:
topic = topics.pop(number)
except IndexError:
irc.error(msg, 'That\'s not a valid topic number.')
return
## debug.printf(topic)
match = self.topicUnformatter.match(topic)
if match is None:
name = ''
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else:
(topic, name) = match.groups()
try:
username = ircdb.users.getUser(msg.prefix).name
except KeyError:
username = msg.nick
if name and name != username and \
not ircdb.checkCapabilities(msg.prefix, ('op', 'admin')):
irc.error(msg, 'You can only remove your own topics.')
return
newTopic = self.topicSeparator.join(topics)
irc.queueMsg(ircmsgs.topic(channel, newTopic))
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remove = privmsgs.checkChannelCapability(remove, 'topic')
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Class = Topic
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: