#!/usr/bin/python

import shlex, datetime, re, sys, optparse

parser = optparse.OptionParser(usage =
"""Usage: %prog [options]

Parse the apache log file for matches to the mythweb root within the
specified idle time. Returns 0 if idle and 1 if not.
""")
parser.add_option("-i", "--idle", dest = "idle",
                  help = "idle time", type = "int",
                  default = 300)
parser.add_option("-l", "--log", dest = "logfile",
                  help = "log file",
                  default = "/var/log/apache2/access.log")
parser.add_option("-r", "--rootre", dest = "rootre",
                  help = "RE to match root of mythweb",
                  default = "^/mythweb")

(options, args) = parser.parse_args()

if options.idle < 0:
    parser.error("idle time must be positive")
    
idletime = 300
logfile = "/var/log/apache2/access.log"

try:
    rootre = re.compile(options.rootre)
except e:
    print "Unable to compile root regular expression: " + str(e)
    sys.exit(2)
    
try:
    f = open(logfile, 'r')
except IOError, e:
    print "Unable to open logfile: " + str(e)
    sys.exit(2)
isidle = True

for line in f:
    data = shlex.split(line)
    linetime = datetime.datetime.strptime(data[3], '[%d/%b/%Y:%H:%M:%S')
    
    if (datetime.datetime.now() - linetime).seconds < 300:
        if rootre.match(data[5].split()[1]) is not None:
            isidle = False
            break
    
if isidle:
    sys.exit(0)
else:
    sys.exit(1)