Reads in a minecraft server log ranking users by time spent

timeclock.py

#!/usr/bin/env python

import datetime
import re

class LogParser(object):
    """
    """
    def __init__(self):
        self._data = {
            'players': {},
            'server': {},
        }
        self._events = list()
        
    def add_event(self, pattern, callback, cont=False):
        """
        """
        self._events.append({
            'pattern': re.compile(pattern),
            'callback': callback,
            'continue': cont})
    
    def parse_log(self, server_log):
        """
        """
        with open(server_log, 'rb') as f:
            for log_line in f:
                self._parse_line(log_line)
        return self._data
    
    def _parse_line(self, line):
        for event in self._events:
            m = event['pattern'].match(line)
            if m:
                event['callback'](self, **m.groupdict())
                if not event['continue']:
                    break
                
    @staticmethod
    def parse_timestamp(timestamp):
        return datetime.datetime.strptime(timestamp, '%Y-%m-%d %H:%M:%S')
        
    @staticmethod
    def format_results(results, length=30):
        time_spent = sorted(results['players'].iteritems(),
            key=lambda x: x[1]['total'],
            reverse=True)
        for user in time_spent[:length]:
            print '%020s = %s' % (user[0], user[1]['total'])

if __name__ == '__main__':
    import sys
    
    parser = LogParser()
    
    def c_login(self, **kwargs):
        try:
            player = self._data['players'][kwargs['nickname']]
        except KeyError:
            player = {
                'total': datetime.timedelta(),
                'online': False,
            }
            self._data['players'][kwargs['nickname']] = player
            #print 'New player: %s' % kwargs['nickname']
        if player['online']:
            #print 'Player logged in before logging out: %s' % kwargs['nickname']
            pass
        else:
            player['online'] = self.parse_timestamp(kwargs['timestamp'])
    
    def c_logout(self, **kwargs):
        try:
            player = self._data['players'][kwargs['nickname']]
        except KeyError:
            #print 'Player logged out before being seen: %s' % kwargs['nickname']
            pass
        else:
            if player['online']:
                player['total'] += \
                    (self.parse_timestamp(kwargs['timestamp']) - 
                        player['online'])
                player['online'] = False
            else:
                #print 'Player logged out before logging in: %s' % kwargs['nickname']
                pass
    
    def c_server_start(self, **kwargs):
        for nickname in self._data['players']:
            player = self._data['players'][nickname]
            if player['online']:
                player['total'] += (self.parse_timestamp(kwargs['timestamp']) -
                    player['online'])
                player['online'] = False
    
    parser.add_event(
        r'(?P<timestamp>(?P<date>\d{4}-\d{2}-\d{2}) (?P<time>\d{2}:\d{2}:\d{2})) ' +
            r'\[INFO\] (?P<nickname>\w*) ' +
            r'\[/(?P<ip_address>(?:\d{1,3}\.){3}\d{1,3})\:(?P<port>\d{3,5})\] logged in.*',
        c_login)
    parser.add_event(
        r'(?P<timestamp>(?P<date>\d{4}-\d{2}-\d{2}) (?P<time>\d{2}:\d{2}:\d{2})) ' +
            r'\[INFO\] (?P<nickname>\w*) ' +
            r'lost connection.*',
        c_logout)
    parser.add_event(
        r'(?P<timestamp>(?P<date>\d{4}-\d{2}-\d{2}) (?P<time>\d{2}:\d{2}:\d{2})) ' +
            r'\[INFO\] Starting minecraft server version (?P<version>.*)',
        c_server_start)
    parser.add_event(
        r'(?P<timestamp>(?P<date>\d{4}-\d{2}-\d{2}) (?P<time>\d{2}:\d{2}:\d{2})) ' +
            r'\[INFO\] Stopping server',
        c_server_start)
    try:
        for f in sys.argv[1:]:
            LogParser.format_results(parser.parse_log(f))
    except IndexError:
        print 'Missing log file argument(s)'

timespent_ranking.py

"""
Minecraft Server Log Time Spent Ranking

"""
__author__ = 'Gavin M. Roy'
__email__ = '[email protected]'
__since__ = '2012-01-05'

import datetime
import operator
import re
import string
import sys


_LOGIN = re.compile("(?P<date>\d\d\d\d-\d\d-\d\d) "
                    "(?P<time>\d\d:\d\d\:\d\d) \[INFO\] "
                    "(?P<nickname>\w*) \[/"
                    "(?P<ipaddress>[0-9]{1,3}\.[0-9]{1,3}\."
                                  "[0-9]{1,3}\.[0-9]{1,3}):"
                    "(?P<port>[0-9]{2,8})\] logged in with entity id "
                    "(?P<entity>[0-9]{1,20}) at \("
                    "(?P<x>[\-0-9\.]*), "
                    "(?P<y>[\-0-9\.]*), "
                    "(?P<z>[\-0-9\.]*)\)")
_LOGOUT = re.compile("(?P<date>\d\d\d\d-\d\d-\d\d) "
                    "(?P<time>\d\d:\d\d:\d\d) \[INFO\] "
                    "(?P<nickname>\w*) lost connection: disconnect."
                    "(?P<reason>\w*)")

# Globals that carry state across methods
users = dict()
last = dict()


def get_datetime(date, time):
    temp = '%s %s' % (date, time)
    return datetime.datetime.strptime(temp, '%Y-%m-%d %H:%M:%S')


def set_duration(nickname, start, end):
    global users
    delta = end - start
    if nickname not in users:
        users[nickname] = delta
    else:
        users[nickname] += delta


def read_file():
    if len(sys.argv) > 1:
        filename = sys.argv[1]
    else:
        filename = 'sever.log'
    with open(filename) as handle:
        return handle.read()


def process_line(line):
    global last
    matches = _LOGIN.match(line)
    if matches:
        login = matches.groupdict()
        last[login['nickname']] = get_datetime(login['date'], login['time'])
    else:
        matches = _LOGOUT.match(line)
        if matches:
            logout = matches.groupdict()
            set_duration(logout['nickname'],
                         last[logout['nickname']],
                         get_datetime(logout['date'], logout['time']))


def display_results():
    time_spent = sorted(users.iteritems(),
                         key=operator.itemgetter(1),
                         reverse=True)
    print
    print '%s%s' % (string.ljust('User ranking by time spent', 30),
                    string.rjust('(Hours:Minutes:Seconds)', 30))
    print ''.join(['-' for x in xrange(0, 60)])
    print
    for user in time_spent:
        print '%s%s' % (string.ljust(user[0], 30),
                        string.rjust(str(user[1]), 30))
    print


def main():

    # Read in the server log
    data = read_file().split('\n')

    # Iterate over each line
    for line in data:
        process_line(line)

    # Display the results
    display_results()

if __name__ == '__main__':
    main()