#!/usr/bin/python
# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
# vi: set ft=python sts=4 ts=4 sw=4 noet :
"""Script to run Fail2Ban tests battery
"""

# This file is part of Fail2Ban.
#
# Fail2Ban 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 2 of the License, or
# (at your option) any later version.
#
# Fail2Ban 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 Fail2Ban; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

__author__ = "Cyril Jaquier"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier, 2012- Yaroslav Halchenko"
__license__ = "GPL"


import unittest, logging, sys, time, os

if sys.version_info >= (2, 6):
	import json
else:
	try:
		import simplejson as json
	except ImportError:
		json = None

from common.version import version
from testcases import banmanagertestcase
from testcases import clientreadertestcase
from testcases import failmanagertestcase
from testcases import filtertestcase
from testcases import servertestcase
from testcases import datedetectortestcase
from testcases import actiontestcase
from testcases import sockettestcase
from testcases import misctestcase
if json:
	from testcases import samplestestcase

from testcases.utils import FormatterWithTraceBack
from server.mytime import MyTime

from optparse import OptionParser, Option

def get_opt_parser():
	# use module docstring for help output
	p = OptionParser(
				usage="%s [OPTIONS] [regexps]\n" % sys.argv[0] + __doc__,
				version="%prog " + version)

	p.add_options([
		Option('-l', "--log-level", type="choice",
			   dest="log_level",
			   choices=('heavydebug', 'debug', 'info', 'warning', 'error', 'fatal'),
			   default=None,
			   help="Log level for the logger to use during running tests"),
		Option('-n', "--no-network", action="store_true",
			   dest="no_network",
			   help="Do not run tests that require the network"),
		Option("-t", "--log-traceback", action='store_true',
			   help="Enrich log-messages with compressed tracebacks"),
		Option("--full-traceback", action='store_true',
			   help="Either to make the tracebacks full, not compressed (as by default)"),

		])

	return p

parser = get_opt_parser()
(opts, regexps) = parser.parse_args()

#
# Logging
#
logSys = logging.getLogger("fail2ban")

# Numerical level of verbosity corresponding to a log "level"
verbosity = {'heavydebug': 4,
			 'debug': 3,
			 'info': 2,
			 'warning': 1,
			 'error': 1,
			 'fatal': 0,
			 None: 1}[opts.log_level]

if opts.log_level is not None: # pragma: no cover
	# so we had explicit settings
	logSys.setLevel(getattr(logging, opts.log_level.upper()))
else: # pragma: no cover
	# suppress the logging but it would leave unittests' progress dots
	# ticking, unless like with '-l fatal' which would be silent
	# unless error occurs
	logSys.setLevel(getattr(logging, 'FATAL'))

# Add the default logging handler
stdout = logging.StreamHandler(sys.stdout)

fmt = ' %(message)s'

if opts.log_traceback:
	Formatter = FormatterWithTraceBack
	fmt = (opts.full_traceback and ' %(tb)s' or ' %(tbc)s') + fmt
else:
	Formatter = logging.Formatter

# Custom log format for the verbose tests runs
if verbosity > 1: # pragma: no cover
	stdout.setFormatter(Formatter(' %(asctime)-15s %(thread)s' + fmt))
else: # pragma: no cover
	# just prefix with the space
	stdout.setFormatter(Formatter(fmt))
logSys.addHandler(stdout)

#
# Let know the version
#
if not opts.log_level or opts.log_level != 'fatal': # pragma: no cover
	print "Fail2ban %s test suite. Python %s. Please wait..." \
	    % (version, str(sys.version).replace('\n', ''))


#
# Gather the tests
#
if not len(regexps): # pragma: no cover
	tests = unittest.TestSuite()
else: # pragma: no cover
	import re
	class FilteredTestSuite(unittest.TestSuite):
		_regexps = [re.compile(r) for r in regexps]
		def addTest(self, suite):
			suite_str = str(suite)
			for r in self._regexps:
				if r.search(suite_str):
					super(FilteredTestSuite, self).addTest(suite)
					return

	tests = FilteredTestSuite()

# Server
#tests.addTest(unittest.makeSuite(servertestcase.StartStop))
tests.addTest(unittest.makeSuite(servertestcase.Transmitter))
tests.addTest(unittest.makeSuite(servertestcase.JailTests))
tests.addTest(unittest.makeSuite(actiontestcase.ExecuteAction))
# FailManager
tests.addTest(unittest.makeSuite(failmanagertestcase.AddFailure))
# BanManager
tests.addTest(unittest.makeSuite(banmanagertestcase.AddFailure))
# ClientReaders
tests.addTest(unittest.makeSuite(clientreadertestcase.ConfigReaderTest))
tests.addTest(unittest.makeSuite(clientreadertestcase.JailReaderTest))
tests.addTest(unittest.makeSuite(clientreadertestcase.JailsReaderTest))
# CSocket and AsyncServer
tests.addTest(unittest.makeSuite(sockettestcase.Socket))
# Misc helpers
tests.addTest(unittest.makeSuite(misctestcase.HelpersTest))
tests.addTest(unittest.makeSuite(misctestcase.SetupTest))
tests.addTest(unittest.makeSuite(misctestcase.TestsUtilsTest))

# Filter
if not opts.no_network:
    tests.addTest(unittest.makeSuite(filtertestcase.IgnoreIP))
tests.addTest(unittest.makeSuite(filtertestcase.LogFile))
tests.addTest(unittest.makeSuite(filtertestcase.LogFileMonitor))
if not opts.no_network:
    tests.addTest(unittest.makeSuite(filtertestcase.GetFailures))
    tests.addTest(unittest.makeSuite(filtertestcase.DNSUtilsTests))
tests.addTest(unittest.makeSuite(filtertestcase.JailTests))

# DateDetector
tests.addTest(unittest.makeSuite(datedetectortestcase.DateDetectorTest))
if json:
	# Filter Regex tests with sample logs
	tests.addTest(unittest.makeSuite(samplestestcase.FilterSamplesRegex))
else:
	print "I: Skipping filter samples testing. No simplejson/json module"

#
# Extensive use-tests of different available filters backends
#

from server.filterpoll import FilterPoll
filters = [FilterPoll]					  # always available

# Additional filters available only if external modules are available
# yoh: Since I do not know better way for parametric tests
#      with good old unittest
try:
	from server.filtergamin import FilterGamin
	filters.append(FilterGamin)
except Exception, e: # pragma: no cover
	print "I: Skipping gamin backend testing. Got exception '%s'" % e

try:
	from server.filterpyinotify import FilterPyinotify
	filters.append(FilterPyinotify)
except Exception, e: # pragma: no cover
	print "I: Skipping pyinotify backend testing. Got exception '%s'" % e

for Filter_ in filters:
	tests.addTest(unittest.makeSuite(
		filtertestcase.get_monitor_failures_testcase(Filter_)))

# Server test for logging elements which break logging used to support
# testcases analysis
tests.addTest(unittest.makeSuite(servertestcase.TransmitterLogging))

#
# Run the tests
#
testRunner = unittest.TextTestRunner(verbosity=verbosity)

try:
	# Set the time to a fixed, known value
	# Sun Aug 14 12:00:00 CEST 2005
	# yoh: we need to adjust TZ to match the one used by Cyril so all the timestamps match
	old_TZ = os.environ.get('TZ', None)
	os.environ['TZ'] = 'Europe/Zurich'
	time.tzset()
	MyTime.setTime(1124013600)

	tests_results = testRunner.run(tests)

finally: # pragma: no cover
	# Just for the sake of it reset the TZ
	# yoh: move all this into setup/teardown methods within tests
	os.environ.pop('TZ')
	if old_TZ:
		os.environ['TZ'] = old_TZ
	time.tzset()

if not tests_results.wasSuccessful(): # pragma: no cover
	sys.exit(1)