Limnoria/plugins/ShrinkUrl/plugin.py

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###
# Copyright (c) 2002-2004, 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.
###
import re
import supybot.conf as conf
import supybot.utils as utils
from supybot.commands import *
import supybot.ircmsgs as ircmsgs
import supybot.plugins as plugins
import supybot.ircutils as ircutils
import supybot.callbacks as callbacks
class CdbShrunkenUrlDB(object):
def __init__(self, filename):
self.tinyDb = conf.supybot.databases.types.cdb.connect(
filename.replace('.db', '.Tiny.db'))
self.lnDb = conf.supybot.databases.types.cdb.connect(
filename.replace('.db', '.Ln.db'))
def getTiny(self, url):
return self.tinyDb[url]
def setTiny(self, url, tinyurl):
self.tinyDb[url] = tinyurl
def getLn(self, url):
return self.lnDb[url]
def setLn(self, url, lnurl):
self.lnDb[url] = lnurl
def close(self):
self.tinyDb.close()
self.lnDb.close()
def flush(self):
self.tinyDb.flush()
self.lnDb.flush()
ShrunkenUrlDB = plugins.DB('ShrinkUrl', {'cdb': CdbShrunkenUrlDB})
class ShrinkUrl(callbacks.PluginRegexp):
regexps = ['shrinkSnarfer']
def __init__(self, irc):
self.__parent = super(ShrinkUrl, self)
self.__parent.__init__(irc)
self.db = ShrunkenUrlDB()
def die(self):
self.db.close()
def callCommand(self, command, irc, msg, *args, **kwargs):
try:
self.__parent.callCommand(command, irc, msg, *args, **kwargs)
except utils.web.Error, e:
irc.error(str(e))
def _outFilterThread(self, irc, msg):
(channel, text) = msg.args
for m in utils.web.httpUrlRe.finditer(text):
url = m.group(1)
if len(url) > self.registryValue('minimumLength', channel):
cmd = self.registryValue('default', channel)
try:
if cmd == 'ln':
(shortUrl, _) = self._getLnUrl(url)
elif cmd == 'tiny':
shortUrl = self._getTinyUrl(url)
text = text.replace(url, shortUrl)
except utils.web.Error:
pass
newMsg = ircmsgs.privmsg(channel, text, msg=msg)
newMsg.tag('shrunken')
irc.queueMsg(newMsg)
def outFilter(self, irc, msg):
channel = msg.args[0]
if msg.command == 'PRIVMSG' and irc.isChannel(channel):
if not msg.shrunken:
if self.registryValue('outFilter', channel):
if utils.web.httpUrlRe.search(msg.args[1]):
self._outFilterThread(irc, msg)
return None
return msg
def shrinkSnarfer(self, irc, msg, match):
r"https?://[^\])>\s]{13,}"
channel = msg.args[0]
if not irc.isChannel(channel):
return
if self.registryValue('shrinkSnarfer', channel):
url = match.group(0)
r = self.registryValue('nonSnarfingRegexp', channel)
if r and r.search(url) is not None:
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self.log.debug('Matched nonSnarfingRegexp: %u', url)
return
minlen = self.registryValue('minimumLength', channel)
cmd = self.registryValue('default', channel)
if len(url) >= minlen:
shorturl = None
if cmd == 'tiny':
shorturl = self._getTinyUrl(url)
elif cmd == 'ln':
(shorturl, _) = self._getLnUrl(url)
if shorturl is None:
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self.log.info('Couldn\'t get shorturl for %u', url)
return
domain = utils.web.getDomain(url)
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s = format('%u (at %s)', ircutils.bold(shorturl), domain)
m = irc.reply(s, prefixName=False)
m.tag('shrunken')
shrinkSnarfer = urlSnarfer(shrinkSnarfer)
def _getLnUrl(self, url):
url = utils.web.urlquote(url)
try:
return (self.db.getLn(url), '200')
except KeyError:
text = utils.web.getUrl('http://ln-s.net/home/api.jsp?url=' + url)
(code, lnurl) = text.split(None, 1)
lnurl = lnurl.strip()
if code == '200':
self.db.setLn(url, lnurl)
else:
lnurl = None
return (lnurl, code)
def ln(self, irc, msg, args, url):
"""<url>
Returns an ln-s.net version of <url>.
"""
if len(url) < 17:
irc.error('Stop being a lazy-biotch and type the URL yourself.')
return
(lnurl, error) = self._getLnUrl(url)
if lnurl is not None:
domain = utils.web.getDomain(url)
m = irc.reply(lnurl)
m.tag('shrunken')
else:
irc.error(error)
ln = thread(wrap(ln, ['url']))
_tinyRe = re.compile(r'<blockquote><b>(http://tinyurl\.com/\w+)</b>')
def _getTinyUrl(self, url):
try:
return self.db.getTiny(url)
except KeyError:
s = utils.web.getUrl('http://tinyurl.com/create.php?url=' + url)
m = self._tinyRe.search(s)
if m is None:
tinyurl = None
else:
tinyurl = m.group(1)
self.db.setTiny(url, tinyurl)
return tinyurl
def tiny(self, irc, msg, args, url):
"""<url>
Returns a TinyURL.com version of <url>
"""
if len(url) < 20:
irc.error('Stop being a lazy-biotch and type the URL yourself.')
return
tinyurl = self._getTinyUrl(url)
if tinyurl is not None:
m = irc.reply(tinyurl)
m.tag('shrunken')
else:
s = 'Could not parse the TinyURL.com results page.'
irc.errorPossibleBug(s)
tiny = thread(wrap(tiny, ['url']))
Class = ShrinkUrl
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