Munin contributed plugins

#!/usr/bin/env python

# Copyright (c) 2008, Net Easy, Inc.

# 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 Net Easy, Inc. nor the

#       names of its contributors may be used to endorse or promote products

#       derived from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY Net Easy, Inc. ''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 Net Easy, Inc. 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.

# requires logcheck from ports

import re, os

from sys import argv

logfile = "/var/log/daemon"

class checker(object):

    def __init__(self):

        self.tarpit_count = 0

        self.tarpit_total = 0

    def __repr__(self):

        return "tarpit.value %s" % (self.tarpit_average())

    def tarpit_average(self):

        if self.tarpit_count > 0:

            return "%.1f" % (self.tarpit_total / self.tarpit_count)

        else:

            return 0

    def process_line(self, line):

        if re.search(' disconnected after ', line):

            self.tarpit_count += 1

            tarpit_time = re.sub('^.*after ','',re.sub(' second.*$','',line))

            self.tarpit_total += int(tarpit_time)

    def process_lines(self, file):

        for line in os.popen('logtail %s %s.tp.offset' % (file, file)).readlines():

            self.process_line(line)

if __name__ == "__main__":

    if len(argv) > 1 and argv[1] == 'config':

        print """graph_title spamd delay

graph_vlabel Average delay.

graph_category Mail

graph_info Average time spammers delayed by spamd

tarpit.label Average tarpit delay"""

    else:

        processor = checker()

        processor.process_lines(logfile)

        print processor