diff --git a/plugins/Lookup.py b/plugins/Lookup.py new file mode 100644 index 000000000..89658c5d9 --- /dev/null +++ b/plugins/Lookup.py @@ -0,0 +1,159 @@ +#!/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. +### + +""" +The Lookup plugin handles looking up various values by their key. +""" + +from baseplugin import * + +import os +import sys + +import sqlite + +import conf +import utils +import privmsgs +import callbacks + + +def configure(onStart, afterConnect, advanced): + # This will be called by setup.py to configure this module. onStart and + # afterConnect are both lists. Append to onStart the commands you would + # like to be run when the bot is started; append to afterConnect the + # commands you would like to be run when the bot has finished connecting. + from questions import expect, anything, something, yn + onStart.append('load Lookup') + +example = utils.wrapLines(""" +Add an example IRC session using this module here. +""") + +def getDb(): + return sqlite.connect(os.path.join(conf.dataDir, 'Lookup.db')) + +class Lookup(callbacks.Privmsg): + def removelookup(self, irc, msg, args): + """ + + Removes the lookup for . + """ + name = privmsgs.getArgs(args) + db = getDb() + cursor = db.cursor() + try: + cursor.execute("""DROP TABLE %s""" % name) + db.commit() + cb = irc.getCallback('Alias') + if cb is not None: + cb.removeAlias(name, evenIfFrozen=True) + irc.reply(msg, conf.replySuccess) + except sqlite.DatabaseError: + irc.error(msg, 'No such lookup exists.') + def addlookup(self, irc, msg, args): + """ + + Adds a lookup for with the key/value pairs specified in the + colon-delimited file specified by . is searched + for in conf.dataDir. Use 'lookup ' to get the value of + the key in the file. + """ + (name, filename) = privmsgs.getArgs(args, needed=2) + db = getDb() + cursor = db.cursor() + try: + cursor.execute("""SELECT * FROM %s LIMIT 1""" % name) + cb = irc.getCallback('Alias') + if cb is not None: + try: + cb.addAlias(irc, name, 'lookup %s $1' % name, freeze=True) + except sys.modules[cb.__module__].AliasError, e: + pass + irc.reply(msg, conf.replySuccess) + except sqlite.DatabaseError: + # Good, there's no such database. + try: + filename = os.path.join(conf.dataDir, filename) + fd = file(filename) + except OSError, e: + irc.error('Could open %s: %s' % (filename, e)) + return + cursor.execute("""CREATE TABLE %s (key TEXT, value TEXT)""" % name) + sql = """INSERT INTO %s VALUES (%%s, %%s)""" % name + for line in fd: + line = line.rstrip('\r\n') + try: + (key, value) = line.split(':', 1) + except ValueError: + irc.error(msg, 'Invalid line in %s: %r' % (filename, line)) + cursor.execute(sql, key, value) + cursor.execute("CREATE INDEX %s_keys ON %s (key)" % (name, name)) + db.commit() + cb = irc.getCallback('Alias') + if cb is not None: + try: + cb.addAlias(irc, name, 'lookup %s $1' % name, freeze=True) + except sys.modules[cb.__module__].AliasError, e: + irc.error(msg, str(e)) + return + irc.reply(msg, conf.replySuccess) + + def lookup(self, irc, msg, args): + """ + + Looks up the value of in the domain . + """ + (name, key) = privmsgs.getArgs(args, needed=2) + db = getDb() + cursor = db.cursor() + sql = """SELECT value FROM %s WHERE key LIKE %%s""" % name + try: + cursor.execute(sql, key) + except sqlite.DatabaseError, e: + if 'no such table' in str(e): + irc.error(msg, 'I don\'t have a domain %s' % name) + else: + irc.error(msg, str(e)) + return + if cursor.rowcount == 0: + irc.reply(msg, 'I couldn\'t find %s in %s' % (key, name)) + elif cursor.rowcount == 1: + irc.reply(msg, cursor.fetchone()[0]) + else: + values = [t[0] for t in cursor.fetchall()] + irc.reply(msg, '%s could be %s' % (key, ', or '.join(values))) + + + +Class = Lookup + +# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: