255 lines
9.6 KiB
Python
255 lines
9.6 KiB
Python
"""
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Karma - handle karma (++ and --) tracking
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Copyright (C) 2010 Brian S. Stephan
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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from math import floor
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import re
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import MySQLdb as mdb
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from Module import Module
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__author__ = "Mike Bloy <mike@bloy.org>"
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__date__ = "$Oct 23, 2010 11:12:33 AM$"
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class Karma(Module):
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def __init__(self, irc, config):
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"""
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Upon creation, determine the save file location
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"""
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Module.__init__(self, irc, config)
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pattern = "(?:\((.+?)\)|(\S+))"
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karmapattern = pattern + '(\+\+|--|\+-|-\+)' + '(\s+|$)'
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querypattern = '^!rank\s+(.*)'
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reportpattern = '^!karma\s+report\s+(highest|lowest|positive|negative|top)'
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statpattern = '^!karma\s+stat\s+(.*)'
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self.karmare = re.compile(karmapattern)
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self.queryre = re.compile(querypattern)
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self.reportre = re.compile(reportpattern)
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self.statre = re.compile(statpattern)
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def db_init(self):
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# need to init the database if karma tables don't already exist
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version = self.db_module_registered(self.__class__.__name__)
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if (version == None):
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# have to create the database tables
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db = self.get_db()
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try:
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version = 1
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cur = db.cursor(mdb.cursors.DictCursor)
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cur.execute('''
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CREATE TABLE karma_log (
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id SERIAL,
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karma_key VARCHAR(128) NOT NULL,
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delta INTEGER NOT NULL,
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who VARCHAR(64) NOT NULL,
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userhost VARCHAR(256) NOT NULL,
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karmatime TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin
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''')
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cur.execute('CREATE INDEX karma_log_key_ix ON karma_log (karma_key)')
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cur.execute('CREATE INDEX karma_log_who_ix ON karma_log (who)')
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cur.execute('''
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CREATE VIEW karma_values AS
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SELECT karma_key, SUM(delta) AS value
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FROM karma_log
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GROUP BY karma_key''')
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cur.execute('''
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CREATE VIEW karma_users AS
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SELECT who, COUNT(NULLIF(delta, -1)) AS pos,
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COUNT(NULLIF(delta, 1)) AS neg
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FROM karma_log GROUP BY who''')
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db.commit()
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self.db_register_module_version(self.__class__.__name__, version)
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except mdb.Error as e:
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db.rollback()
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self.log.error("database error trying to create tables")
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self.log.exception(e)
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raise
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finally: cur.close()
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def do(self, connection, event, nick, userhost, what, admin_unlocked):
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"""look for karma strings at the start of messages"""
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# don't return anything, do this attempt regardless
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if (self.karmare.search(what)):
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self.handle_karma_change(connection, nick, userhost, what)
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if (self.queryre.search(what)):
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return self.irc.reply(event, self.handle_karma_query(connection, nick, userhost, what))
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elif (self.statre.search(what)):
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return self.irc.reply(event, self.handle_stat_query(connection, nick, userhost, what))
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elif (self.reportre.search(what)):
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return self.irc.reply(event, self.handle_report_query(connection, nick, userhost, what))
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def handle_karma_change(self, connection, nick, userhost, what):
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"""
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handle the karma change and storage.
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"""
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if self.karmare.search(what):
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matches = self.karmare.findall(what)
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for match in matches:
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key = match[0] if match[0] else match[1]
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value = match[2]
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if (value == '++'):
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self.karma_modify(key, 1, nick, userhost)
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elif (value == '--'):
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self.karma_modify(key, -1, nick, userhost)
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elif (value == '+-'):
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self.karma_modify(key, 1, nick, userhost)
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self.karma_modify(key, -1, nick, userhost)
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elif (value == '-+'):
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self.karma_modify(key, -1, nick, userhost)
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self.karma_modify(key, 1, nick, userhost)
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def karma_modify(self, key, value, nick, userhost):
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"""
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Go out to the database and update the karma value.
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"""
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db = self.get_db()
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try:
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cur = db.cursor(mdb.cursors.DictCursor)
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sql = '''
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INSERT INTO karma_log (karma_key, delta, who, userhost)
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VALUES (%s, %s, %s, %s)
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'''
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cur.execute(sql, (key.lower(), value, nick, userhost))
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db.commit()
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except mdb.Error as e:
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db.rollback()
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self.log.error("database error modifying karma")
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self.log.exception(e)
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raise
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finally: cur.close()
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def handle_report_query(self, connection, nick, userhost, what):
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match = self.reportre.search(what)
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report = match.group(1)
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message = '{nick}: the desired report is not yet implemented'.format(nick=nick)
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query = None
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header = None
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if (report == 'highest'):
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query = 'SELECT karma_key AS who, value FROM karma_values ORDER BY value DESC LIMIT 5'
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header = 'Top 5 karma recipients:'
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elif (report == 'lowest'):
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query = 'SELECT karma_key AS who, value FROM karma_values ORDER BY value ASC LIMIT 5'
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header = 'Bottom 5 karma recipients:'
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elif (report == 'positive'):
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query = 'SELECT who, pos AS value FROM karma_users ORDER BY pos DESC LIMIT 5'
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header = 'Top 5 Optimists:'
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elif (report == 'negative'):
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query = 'SELECT who, neg AS value FROM karma_users ORDER BY neg DESC LIMIT 5'
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header = 'Top 5 Pessimists:'
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elif (report == 'top'):
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query = 'SELECT who, pos+neg AS value FROM karma_users ORDER BY value DESC LIMIT 5'
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header = 'Top 5 Total Karma Givers:'
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if (query != None):
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db = self.get_db()
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list = []
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try:
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cur = db.cursor(mdb.cursors.DictCursor)
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cur.execute(query)
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result = cur.fetchone()
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while (result != None):
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list.append("{key} ({value})".format(key=result['who'], value=result['value']))
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result = cur.fetchone()
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list = ', '.join(list)
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message = '{header} {list}'.format(header=header, list=list)
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except mdb.Error as e:
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self.log.error("database error during report query")
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self.log.exception(e)
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raise
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finally: cur.close()
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return message
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def handle_stat_query(self, connection, nick, userhost, what):
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match = self.statre.search(what)
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statnick = match.group(1)
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db = self.get_db()
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reply = '{nick}: {statnick} has never given karma'.format(nick=nick, statnick=statnick)
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try:
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cur = db.cursor(mdb.cursors.DictCursor)
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query = '''
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SELECT pos, neg
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FROM karma_users
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WHERE who = :who
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'''
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cur.execute(query, {'who': statnick})
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value = cur.fetchone()
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if (value != None):
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pos = value[0]
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neg = value[1]
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total = pos+neg;
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reply = '{nick}: {statnick} has given {pos} postive karma and {neg} negative karma, for a total of {total} karma'.format(nick=nick, statnick=statnick, pos=pos, neg=neg, total=total)
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except mdb.Error as e:
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self.log.error("database error during handle stat query")
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self.log.exception(e)
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raise
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finally: cur.close()
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return reply
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def handle_karma_query(self, connection, nick, userhost, what):
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match = self.queryre.search(what)
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key = match.group(1)
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db = self.get_db()
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reply = '{nick}: {key} has no karma'.format(nick=nick, key=key)
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try:
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cur = db.cursor(mdb.cursors.DictCursor)
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query = '''
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SELECT value
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FROM karma_values
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WHERE karma_key = %s
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'''
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cur.execute(query, (key.lower(),))
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value = cur.fetchone()
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if (value != None):
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query = '''
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SELECT count(*) FROM karma_values WHERE value > %s
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'''
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cur.execute(query, (value['value'],))
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rank = cur.fetchone()
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rank = rank['count(*)'] + 1;
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reply = '{0:s}: {1:s} has {2:d} points of karma (rank {3:d})'.format(
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nick, key, int(floor(value['value'])), rank)
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except mdb.Error as e:
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self.log.error("database error during handle karma query")
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self.log.exception(e)
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raise
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finally: cur.close()
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return reply
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if __name__ == "__main__":
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print "Hello World"
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# vi:tabstop=4:expandtab:autoindent
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