dr.botzo/modules/Karma.py

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"""
Karma - handle karma (++ and --) tracking
Copyright (C) 2010 Brian S. Stephan
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
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import re
import sqlite3
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from Module import Module
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__author__ = "Mike Bloy <mike@bloy.org>"
__date__ = "$Oct 23, 2010 11:12:33 AM$"
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class Karma(Module):
def __init__(self, config, server, modlist):
"""
Upon creation, determine the save file location
"""
Module.__init__(self, config, server, modlist)
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pattern = "(?:([a-zA-Z0-9_'.,]+)|\(([a-zA-Z0-9_'., ]+)\))"
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karmapattern = '^' + pattern + '(\+\+|--)'
querypattern = '^rank\s+(.*)'
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self.karmare = re.compile(karmapattern)
self.queryre = re.compile(querypattern)
def db_init(self):
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# need to init the database if karma tables don't already exist
version = self.db_module_registered(self.__class__.__name__)
if (version == None):
# have to create the database tables
conn = self.get_db()
try:
conn.execute('''
CREATE TABLE karma_log (
id INTEGER PRIMARY KEY AUTOINCREMENT,
key TEXT NOT NULL,
delta INTEGER NOT NULL,
who TEXT NOT NULL,
userhost TEXT NOT NULL,
karmatime TEXT DEFAULT CURRENT_TIMESTAMP
)''')
conn.execute('CREATE INDEX karma_log_key_ix ON karma_log (key)')
conn.execute('CREATE INDEX karma_log_who_ix ON karma_log (who)')
conn.execute('''
CREATE VIEW karma_values AS
SELECT key, SUM(delta) AS value
FROM karma_log
GROUP BY key''')
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sql = 'INSERT INTO drbotzo_modules VALUES (?,?)'
conn.execute(sql, (self.__class__.__name__, 1))
conn.commit()
except sqlite3.Error as e:
conn.rollback()
print("sqlite error: " + str(e))
raise
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def do(self, connection, event, nick, userhost, replypath, what, admin_unlocked):
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"""look for karma strings at the start of messages"""
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if (self.karmare.match(what)):
return self.handle_karma_change(connection, nick, userhost, replypath, what)
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elif (self.queryre.match(what)):
return self.handle_karma_query(connection, nick, userhost, replypath, what)
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def handle_karma_change(self, connection, nick, userhost, replypath, what):
"""
handle the karma change and storage.
"""
match = self.karmare.match(what)
key = match.group(1) if match.group(1) else match.group(2)
value = match.group(3)
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if (value == '++'):
value = 1;
else:
value = -1;
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conn = self.get_db()
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try:
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sql = '''
INSERT INTO karma_log (key, delta, who, userhost)
VALUES (?, ?, ?, ?)
'''
conn.execute(sql, (key, value, nick, userhost))
conn.commit()
except sqlite3.Error as e:
conn.rollback()
return self.reply(connection, replypath, "sqlite error: " + str(e))
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def handle_karma_query(self, connection, nick, userhost, replypath, what):
match = self.queryre.match(what)
key = match.group(1)
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conn = self.get_db()
reply = '{nick}: {key} has no karma'.format(nick=nick, key=key)
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try:
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query = '''
SELECT value
FROM karma_values
WHERE key = :key
'''
value = conn.execute(query, {'key': key}).fetchone()
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if (value != None):
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query = '''
SELECT count(*) FROM karma_values WHERE value > :value
'''
rank = conn.execute(query, {'value': value[0]}).fetchone()
rank = rank[0] + 1;
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reply = '{nick}: {key} has {value[0]!s} points of karma (rank {rank})'.format(
nick=nick, key=key, value=value, rank=rank)
except sqlite3.Error as e:
return self.reply(connection, replypath, "sqlite error: " + str(e))
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return self.reply(connection, replypath, reply)
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if __name__ == "__main__":
print "Hello World"