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5633b9d46b
nonSnarfingRegexp. Lowered the minimum length we check for tiny URLs since they can be as short as 20 characters.
405 lines
16 KiB
Python
405 lines
16 KiB
Python
#!/usr/bin/env python
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###
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# Copyright (c) 2002, Jeremiah Fincher
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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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Keeps track of URLs posted to a channel, along with relevant context. Allows
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searching for URLs and returning random URLs. Also provides statistics on the
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URLs in the database.
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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 re
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import time
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import getopt
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import urllib2
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import urlparse
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import conf
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import utils
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import ircmsgs
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import webutils
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import ircutils
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import privmsgs
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import registry
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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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def configure(advanced):
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from questions import output, expect, anything, something, yn
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conf.registerPlugin('URL', True)
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if yn("""This plugin offers a snarfer that will go to tinyurl.com and get
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a shorter version of long URLs that are sent to the channel.
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Would you like this snarfer to be enabled?""", default=False):
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conf.supybot.plugins.URL.tinyurlSnarfer.setValue(True)
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if yn("""This plugin also offers a snarfer that will try to fetch the
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title of URLs that it sees in the channel. Would like you this
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snarfer to be enabled?""", default=False):
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conf.supybot.plugins.URL.titleSnarfer.setValue(True)
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conf.registerPlugin('URL')
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conf.registerChannelValue(conf.supybot.plugins.URL, 'tinyurlSnarfer',
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registry.Boolean(False, """Determines whether the
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tinyurl snarfer is enabled. This snarfer will watch for URLs in the
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channel, and if they're sufficiently long (as determined by
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supybot.plugins.URL.tinyurlSnarfer.minimumLength) it will post a smaller
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from tinyurl.com."""))
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conf.registerChannelValue(conf.supybot.plugins.URL.tinyurlSnarfer,
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'minimumLength',
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registry.PositiveInteger(48, """The minimum length a URL must be before the
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tinyurl snarfer will snarf it."""))
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conf.registerChannelValue(conf.supybot.plugins.URL, 'titleSnarfer',
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registry.Boolean(False, """Determines whether the bot will output the HTML
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title of URLs it sees in the channel."""))
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conf.registerChannelValue(conf.supybot.plugins.URL, 'nonSnarfingRegexp',
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registry.Regexp(None, """Determines what URLs are to be snarfed and stored
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in the database in the channel; URLs matchin the regexp given will not be
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snarfed. Give the empty string if you have no URLs that you'd like to
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exclude from being snarfed."""))
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class URL(callbacks.PrivmsgCommandAndRegexp,
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plugins.ChannelDBHandler):
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regexps = ['tinyurlSnarfer', 'titleSnarfer']
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_titleRe = re.compile('<title>(.*?)</title>', re.I)
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def __init__(self):
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self.nextMsgs = {}
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plugins.ChannelDBHandler.__init__(self)
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callbacks.PrivmsgCommandAndRegexp.__init__(self)
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def die(self):
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plugins.ChannelDBHandler.die(self)
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callbacks.PrivmsgCommandAndRegexp.die(self)
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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 urls (
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id INTEGER PRIMARY KEY,
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url TEXT,
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added TIMESTAMP,
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added_by TEXT,
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previous_msg TEXT,
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current_msg TEXT,
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next_msg TEXT,
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protocol TEXT,
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site TEXT,
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filename TEXT
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)""")
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cursor.execute("""CREATE TABLE tinyurls (
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id INTEGER PRIMARY KEY,
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url_id INTEGER,
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tinyurl TEXT
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)""")
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db.commit()
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return db
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def doPrivmsg(self, irc, msg):
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channel = msg.args[0]
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db = self.getDb(channel)
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cursor = db.cursor()
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if (msg.nick, channel) in self.nextMsgs:
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L = self.nextMsgs.pop((msg.nick, msg.args[0]))
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for (url, added) in L:
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cursor.execute("""UPDATE urls SET next_msg=%s
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WHERE url=%s AND added=%s""",
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msg.args[1], url, added)
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if ircmsgs.isAction(msg):
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text = ircmsgs.unAction(msg)
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else:
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text = msg.args[1]
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for url in webutils.urlRe.findall(text):
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r = self.registryValue('nonSnarfingRegexp', channel)
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#self.log.warning(repr(r))
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if r and r.search(url):
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#self.log.warning('Skipping addition of URL to db.')
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continue
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#self.log.warning('Adding URL to db.')
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(protocol, site, filename, _, _, _) = urlparse.urlparse(url)
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previousMsg = ''
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for oldMsg in reversed(irc.state.history):
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if oldMsg.command == 'PRIVMSG':
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if oldMsg.nick == msg.nick and oldMsg.args[0] == channel:
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previousMsg = oldMsg.args[1]
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addedBy = msg.nick
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added = int(time.time())
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cursor.execute("""INSERT INTO urls VALUES
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(NULL, %s, %s, %s, %s, %s, '', %s, %s, %s)""",
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url, added, addedBy, msg.args[1], previousMsg,
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protocol, site, filename)
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key = (msg.nick, channel)
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self.nextMsgs.setdefault(key, []).append((url, added))
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db.commit()
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super(URL, self).doPrivmsg(irc, msg)
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def tinyurlSnarfer(self, irc, msg, match):
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r"https?://[^\])>\s]{18,}"
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if not ircutils.isChannel(msg.args[0]):
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return
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channel = msg.args[0]
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r = self.registryValue('nonSnarfingRegexp', channel)
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if self.registryValue('tinyurlSnarfer', channel):
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url = match.group(0)
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if r and r.search(url):
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return
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minlen = self.registryValue('tinyurlSnarfer.minimumLength',channel)
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if len(url) >= minlen:
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db = self.getDb(channel)
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cursor = db.cursor()
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(tinyurl, updateDb) = self._getTinyUrl(url, channel)
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if tinyurl is None:
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self.log.warning('tinyurl was None for url %r', url)
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return
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elif updateDb:
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self._updateTinyDb(url, tinyurl, channel)
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domain = webutils.getDomain(url)
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s = '%s (at %s)' % (ircutils.bold(tinyurl), domain)
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irc.reply(s, prefixName=False)
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tinyurlSnarfer = privmsgs.urlSnarfer(tinyurlSnarfer)
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def titleSnarfer(self, irc, msg, match):
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r"https?://[^\])>\s]+"
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if not ircutils.isChannel(msg.args[0]):
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return
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if callbacks.addressed(irc.nick, msg):
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return
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channel = msg.args[0]
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r = self.registryValue('nonSnarfingRegexp', channel)
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#self.log.warning('Title: %r' % r)
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if self.registryValue('titleSnarfer', channel):
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url = match.group(0)
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if r and r.search(url):
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return
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try:
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size = conf.supybot.protocols.http.peekSize()
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text = webutils.getUrl(url, size=size)
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except webutils.WebError, e:
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self.log.info('Couldn\'t snarf title of %s, %s.', url, e)
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return
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m = self._titleRe.search(text)
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if m is not None:
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domain = webutils.getDomain(url)
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title = utils.htmlToText(m.group(1).strip())
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s = 'Title: %s (at %s)' % (title, domain)
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irc.reply(s, prefixName=False)
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titleSnarfer = privmsgs.urlSnarfer(titleSnarfer)
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def _updateTinyDb(self, url, tinyurl, channel):
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""INSERT INTO tinyurls
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VALUES (NULL, 0, %s)""", tinyurl)
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cursor.execute("""SELECT id FROM urls WHERE url=%s""", url)
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id = cursor.fetchone()[0]
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cursor.execute("""UPDATE tinyurls SET url_id=%s
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WHERE tinyurl=%s""", id, tinyurl)
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db.commit()
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_tinyRe = re.compile(r'<blockquote><b>(http://tinyurl\.com/\w+)</b>')
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def _getTinyUrl(self, url, channel, cmd=False):
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT tinyurls.tinyurl FROM urls, tinyurls
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WHERE urls.url=%s AND
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tinyurls.url_id=urls.id""", url)
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if cursor.rowcount == 0:
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updateDb = True
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try:
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fd = urllib2.urlopen('http://tinyurl.com/create.php?url=%s' %
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url)
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s = fd.read()
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fd.close()
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m = self._tinyRe.search(s)
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if m is None:
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tinyurl = None
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else:
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tinyurl = m.group(1)
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except urllib2.HTTPError, e:
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if cmd:
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raise callbacks.Error, e.msg()
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else:
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self.log.warning(str(e))
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else:
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updateDb = False
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tinyurl = cursor.fetchone()[0]
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return (tinyurl, updateDb)
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def _formatUrl(self, url, added, addedBy):
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when = time.strftime(conf.supybot.humanTimestampFormat(),
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time.localtime(int(added)))
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return '<%s> (added by %s at %s)' % (url, addedBy, when)
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def random(self, irc, msg, args):
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"""[<channel>]
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Returns a random URL from the URL database. <channel> is only required
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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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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT url, added, added_by
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FROM urls
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ORDER BY random()
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LIMIT 1""")
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if cursor.rowcount == 0:
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irc.reply('I have no URLs in my database for %s' % channel)
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else:
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irc.reply(self._formatUrl(*cursor.fetchone()))
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def tiny(self, irc, msg, args):
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"""<url>
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Returns a TinyURL.com version of <url>
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"""
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url = privmsgs.getArgs(args)
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if len(url) < 20:
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irc.error('Stop being a lazy-biotch and type the URL yourself.')
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return
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channel = msg.args[0]
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snarf = self.registryValue('tinyurlSnarfer', channel)
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minlen = self.registryValue('tinyurlSnarfer.minimumLength', channel)
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r = self.registryValue('nonSnarfingRegexp', channel)
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if snarf and len(url) >= minlen and not r.search(url):
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return
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(tinyurl, updateDb) = self._getTinyUrl(url, channel, cmd=True)
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if tinyurl:
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if updateDb:
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self._updateTinyDb(url, tinyurl, channel)
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irc.reply(tinyurl)
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else:
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s = 'Could not parse the TinyURL.com results page.'
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irc.errorPossibleBug(s)
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tiny = privmsgs.thread(tiny)
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def stats(self, irc, msg, args):
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"""[<channel>]
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Returns the number of URLs in the URL database. <channel> is only
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required 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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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT COUNT(*) FROM urls""")
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(count,) = cursor.fetchone()
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count = int(count)
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irc.reply('I have %s %s in my database.' %
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(count, count == 1 and 'URL' or 'URLs'))
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def last(self, irc, msg, args):
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"""[<channel>] [--{from,with,at,proto,near}=<value>] --{nolimit,fancy}
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Gives the last URL matching the given criteria. --from is from whom
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the URL came; --at is the site of the URL; --proto is the protocol the
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URL used; --with is something inside the URL; --near is a string in the
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messages before and after the link. If --nolimit is given, returns as
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many URLs as can fit in the message. --fancy returns information in
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addition to just the URL. <channel> is only necessary if the
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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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(optlist, rest) = getopt.getopt(args, '', ['from=', 'with=', 'at=',
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'proto=', 'near=',
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'nolimit', 'fancy'])
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criteria = ['1=1']
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formats = []
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simple = True
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nolimit = False
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for (option, argument) in optlist:
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option = option.lstrip('-') # Strip off the --.
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if option == 'nolimit':
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nolimit = True
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if option == 'fancy':
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simple = False
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elif option == 'from':
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criteria.append('added_by LIKE %s')
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formats.append(argument)
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elif option == 'with':
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if '%' not in argument and '_' not in argument:
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argument = '%%%s%%' % argument
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criteria.append('url LIKE %s')
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formats.append(argument)
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elif option == 'at':
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if '%' not in argument and '_' not in argument:
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argument = '%' + argument
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criteria.append('site LIKE %s')
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formats.append(argument)
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elif option == 'proto':
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criteria.append('protocol=%s')
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formats.append(argument)
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elif option == 'near':
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criteria.append("""(previous_msg LIKE %s OR
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next_msg LIKE %s OR
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current_msg LIKE %s)""")
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if '%' not in argument:
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argument = '%%%s%%' % argument
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formats.append(argument)
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formats.append(argument)
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formats.append(argument)
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db = self.getDb(channel)
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cursor = db.cursor()
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criterion = ' AND '.join(criteria)
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sql = """SELECT id, url, added, added_by
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FROM urls
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WHERE %s ORDER BY id DESC
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LIMIT 100""" % criterion
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cursor.execute(sql, *formats)
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if cursor.rowcount == 0:
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irc.reply('No URLs matched that criteria.')
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else:
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if nolimit:
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urls = ['<%s>' % t[1] for t in cursor.fetchall()]
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s = ', '.join(urls)
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elif simple:
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s = cursor.fetchone()[1]
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else:
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(id, url, added, added_by) = cursor.fetchone()
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timestamp = time.strftime('%I:%M %p, %B %d, %Y',
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time.localtime(int(added)))
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s = '#%s: <%s>, added by %s at %s.' % \
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(id, url, added_by, timestamp)
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irc.reply(s)
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Class = URL
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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