mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-11-27 13:19:24 +01:00
292 lines
11 KiB
Python
292 lines
11 KiB
Python
#!/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 basic functionality for handling RSS/RDF feeds.
|
|
"""
|
|
|
|
__revision__ = "$Id$"
|
|
|
|
import plugins
|
|
|
|
import sets
|
|
import time
|
|
import threading
|
|
from itertools import imap
|
|
|
|
import rssparser
|
|
|
|
import conf
|
|
import utils
|
|
import world
|
|
import ircmsgs
|
|
import ircutils
|
|
import privmsgs
|
|
import registry
|
|
import callbacks
|
|
|
|
def configure(advanced):
|
|
from questions import output, expect, anything, something, yn
|
|
conf.registerPlugin('RSS', True)
|
|
prompt = 'Would you like to add an RSS feed?'
|
|
while yn(prompt):
|
|
prompt = 'Would you like to add another RSS feed?'
|
|
name = something('What\'s the name of the website?')
|
|
url = something('What\'s the URL of the RSS feed?')
|
|
registerFeed(name, url)
|
|
|
|
conf.registerPlugin('RSS')
|
|
conf.registerChannelValue(conf.supybot.plugins.RSS, 'bold', registry.Boolean(
|
|
True, """Determines whether the bot will bold the title of the feed when it
|
|
announces new news."""))
|
|
conf.registerChannelValue(conf.supybot.plugins.RSS, 'headlineSeparator',
|
|
registry.StringSurroundedBySpaces(' || ', """Determines what string is used
|
|
to separate headlines in new feeds."""))
|
|
conf.registerChannelValue(conf.supybot.plugins.RSS, 'announcementPrefix',
|
|
registry.StringWithSpaceOnRight('New news from ', """Determines what prefix
|
|
is prepended (if any) to the new news item announcements made in the
|
|
channel."""))
|
|
conf.registerChannelValue(conf.supybot.plugins.RSS, 'announce',
|
|
registry.SpaceSeparatedListOfStrings([], """Determines which RSS feeds
|
|
should be announced in the channel; valid input is a list of strings
|
|
(either registered RSS feeds or RSS feed URLs) separated by spaces."""))
|
|
conf.registerGlobalValue(conf.supybot.plugins.RSS, 'waitPeriod',
|
|
registry.PositiveInteger(1800, """Indicates how many seconds the bot will
|
|
wait between retrieving RSS feeds; requests made within this period will
|
|
return cached results."""))
|
|
conf.registerGroup(conf.supybot.plugins.RSS, 'feeds')
|
|
conf.supybot.plugins.RSS.feeds.help = utils.normalizeWhitespace("""These are
|
|
the registered feeds for the RSS plugin.""")
|
|
|
|
def registerFeed(name, url):
|
|
conf.supybot.plugins.RSS.feeds.register(name, registry.String(url, ''))
|
|
|
|
class RSS(callbacks.Privmsg):
|
|
threaded = True
|
|
def __init__(self):
|
|
callbacks.Privmsg.__init__(self)
|
|
self.feedNames = sets.Set()
|
|
self.lastRequest = {}
|
|
self.cachedFeeds = {}
|
|
self.currentlyDownloading = sets.Set()
|
|
for (name, url) in registry._cache.iteritems():
|
|
name = name.lower()
|
|
if name.startswith('supybot.plugins.rss.feeds.'):
|
|
name = rsplit(name, '.', 1)[-1]
|
|
v = registry.String('', 'help is not needed here')
|
|
v.set(url)
|
|
url = v()
|
|
self.makeFeedCommand(name, url)
|
|
|
|
def __call__(self, irc, msg):
|
|
callbacks.Privmsg.__call__(self, irc, msg)
|
|
irc = callbacks.IrcObjectProxyRegexp(irc, msg)
|
|
L = conf.supybot.plugins.RSS.announce.getValues(fullNames=False)
|
|
for (channel, v) in L:
|
|
feeds = v()
|
|
for name in feeds:
|
|
if self.isCommand(callbacks.canonicalName(name)):
|
|
url = self.getCommand(name).url
|
|
else:
|
|
url = name
|
|
if self.willGetNewFeed(url):
|
|
t = threading.Thread(target=self._newHeadlines,
|
|
name='Fetching <%s>' % url,
|
|
args=(irc, channel, name, url))
|
|
self.log.info('Spawning thread to fetch <%s>', url)
|
|
world.threadsSpawned += 1
|
|
t.start()
|
|
|
|
|
|
def _newHeadlines(self, irc, channel, name, url):
|
|
try:
|
|
oldresults = self.cachedFeeds[url]
|
|
oldheadlines = self.getHeadlines(oldresults)
|
|
except KeyError:
|
|
oldheadlines = []
|
|
newresults = self.getFeed(url)
|
|
newheadlines = self.getHeadlines(newresults)
|
|
for headline in oldheadlines:
|
|
try:
|
|
newheadlines.remove(headline)
|
|
except ValueError:
|
|
pass
|
|
bold = self.registryValue('bold', channel)
|
|
sep = self.registryValue('headlineSeparator', channel)
|
|
prefix = self.registryValue('announcementPrefix', channel)
|
|
if newheadlines:
|
|
pre = '%s%s: ' % (prefix, name)
|
|
if bold:
|
|
pre = ircutils.bold(pre)
|
|
irc.replies(newheadlines, prefixer=pre, joiner=sep,
|
|
to=channel, prefixName=False, private=True)
|
|
|
|
def willGetNewFeed(self, url):
|
|
now = time.time()
|
|
wait = self.registryValue('waitPeriod')
|
|
if url in self.currentlyDownloading:
|
|
return False
|
|
if url not in self.lastRequest or now - self.lastRequest[url] > wait:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def getFeed(self, url):
|
|
if self.willGetNewFeed(url):
|
|
try:
|
|
self.currentlyDownloading.add(url)
|
|
try:
|
|
self.log.info('Downloading new feed from <%s>', url)
|
|
results = rssparser.parse(url)
|
|
except sgmllib.SGMLParseError:
|
|
self.log.exception('Uncaught exception from rssparser:')
|
|
raise callbacks.Error, 'Invalid (unparseable) RSS feed.'
|
|
self.cachedFeeds[url] = results
|
|
self.lastRequest[url] = time.time()
|
|
finally:
|
|
self.currentlyDownloading.discard(url)
|
|
return self.cachedFeeds[url]
|
|
|
|
def getHeadlines(self, feed):
|
|
return [utils.htmlToText(d['title'].strip()) for d in feed['items']]
|
|
|
|
def makeFeedCommand(self, name, url):
|
|
docstring = """takes no arguments
|
|
|
|
Reports the titles for %s at the RSS feed <%s>. RSS feeds are only
|
|
looked up every supybot.plugins.RSS.waitPeriod seconds, which defaults
|
|
to 1800 (30 minutes) since that's what most websites prefer.
|
|
""" % (name, url)
|
|
name = callbacks.canonicalName(name)
|
|
if hasattr(self, name):
|
|
s = 'I already have a command in this plugin named %s' % name
|
|
raise callbacks.Error, s
|
|
def f(self, irc, msg, args):
|
|
args.insert(0, url)
|
|
self.rss(irc, msg, args)
|
|
f = utils.changeFunctionName(f, name, docstring)
|
|
f.url = url # Used by __call__.
|
|
self.feedNames.add(name)
|
|
setattr(self.__class__, name, f)
|
|
registerFeed(name, url)
|
|
|
|
def add(self, irc, msg, args):
|
|
"""<name> <url>
|
|
|
|
Adds a command to this plugin that will look up the RSS feed at the
|
|
given URL.
|
|
"""
|
|
(name, url) = privmsgs.getArgs(args, required=2)
|
|
self.makeFeedCommand(name, url)
|
|
irc.replySuccess()
|
|
|
|
def remove(self, irc, msg, args):
|
|
"""<name>
|
|
|
|
Removes the command for looking up RSS feeds at <name> from
|
|
this plugin.
|
|
"""
|
|
name = privmsgs.getArgs(args)
|
|
name = callbacks.canonicalName(name)
|
|
if name not in self.feedNames:
|
|
irc.error('That\'s not a valid RSS feed command name.')
|
|
return
|
|
delattr(self.__class__, name)
|
|
irc.replySuccess()
|
|
|
|
def announce(self, irc, msg, args, channel):
|
|
"""[<channel>] [<name|url> ...]
|
|
|
|
Sets the current list of announced feeds in the channel to the feeds
|
|
given. Valid feeds include the names of registered feeds as well as
|
|
URLs for a RSS feeds. <channel> is only necessary if the message isn't
|
|
sent in the channel itself.
|
|
"""
|
|
conf.supybot.plugins.RSS.announce.get(channel).setValue(args)
|
|
if not args:
|
|
irc.replySuccess('All previous announced feeds removed.')
|
|
else:
|
|
irc.replySuccess()
|
|
announce = privmsgs.checkChannelCapability(announce, 'op')
|
|
|
|
def rss(self, irc, msg, args):
|
|
"""<url>
|
|
|
|
Gets the title components of the given RSS feed.
|
|
"""
|
|
url = privmsgs.getArgs(args)
|
|
self.log.debug('Fetching %s', url)
|
|
feed = self.getFeed(url)
|
|
if ircutils.isChannel(msg.args[0]):
|
|
channel = msg.args[0]
|
|
else:
|
|
channel = None
|
|
headlines = self.getHeadlines(feed)
|
|
if not headlines:
|
|
irc.error('Couldn\'t get RSS feed')
|
|
return
|
|
headlines = imap(utils.htmlToText, headlines)
|
|
sep = self.registryValue('headlineSeparator', channel)
|
|
irc.reply(sep.join(headlines))
|
|
|
|
def info(self, irc, msg, args):
|
|
"""<url>
|
|
|
|
Returns information from the given RSS feed, namely the title,
|
|
URL, description, and last update date, if available.
|
|
"""
|
|
url = privmsgs.getArgs(args)
|
|
feed = self.getFeed(url)
|
|
info = feed['channel']
|
|
if not info:
|
|
irc.error('I couldn\'t retrieve that RSS feed.')
|
|
return
|
|
# check the 'modified' key, if it's there, convert it here first
|
|
if 'modified' in feed:
|
|
seconds = time.mktime(feed['modified'])
|
|
now = time.mktime(time.gmtime())
|
|
when = utils.timeElapsed(now - seconds) + ' ago'
|
|
else:
|
|
when = "time unavailable"
|
|
# The rest of the entries are all available in the channel key
|
|
response = 'Title: %s; URL: <%s>; ' \
|
|
'Description: %s; Last updated %s.' % (
|
|
info.get('title', 'unavailable').strip(),
|
|
info.get('link', 'unavailable').strip(),
|
|
info.get('description', 'unavailable').strip(),
|
|
when)
|
|
irc.reply(' '.join(response.split()))
|
|
|
|
|
|
Class = RSS
|
|
|
|
# vim:set shiftwidth=4 tabstop=4 expandtab textwidth=78:
|