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# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
# vi: set ft=python sts=4 ts=4 sw=4 noet :
# 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.
import os
import smtpd
import threading
import unittest
import re
import sys
if sys.version_info >= (3, 3):
import importlib
else:
import imp
from ..dummyjail import DummyJail
from ..utils import CONFIG_DIR, asyncserver, Utils, uni_decode
class TestSMTPServer(smtpd.SMTPServer):
def __init__(self, *args):
smtpd.SMTPServer.__init__(self, *args)
self.ready = False
def process_message(self, peer, mailfrom, rcpttos, data, **kwargs):
self.peer = peer
self.mailfrom = mailfrom
self.rcpttos = rcpttos
self.org_data = data
# replace new line (with tab or space) for possible mime translations (word wrap),
self.data = re.sub(r"\n[\t ]", " ", uni_decode(data))
self.ready = True
class SMTPActionTest(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
unittest.F2B.SkipIfCfgMissing(action='smtp.py')
super(SMTPActionTest, self).setUp()
self.jail = DummyJail()
pythonModule = os.path.join(CONFIG_DIR, "action.d", "smtp.py")
pythonModuleName = os.path.basename(pythonModule.rstrip(".py"))
if sys.version_info >= (3, 3):
customActionModule = importlib.machinery.SourceFileLoader(
pythonModuleName, pythonModule).load_module()
else:
customActionModule = imp.load_source(
pythonModuleName, pythonModule)
self.smtpd = TestSMTPServer(("localhost", 0), None)
port = self.smtpd.socket.getsockname()[1]
self.action = customActionModule.Action(
self.jail, "test", host="localhost:%i" % port)
## because of bug in loop (see loop in asyncserver.py) use it's loop instead of asyncore.loop:
self._active = True
self._loop_thread = threading.Thread(
target=asyncserver.loop, kwargs={'active': lambda: self._active})
self._loop_thread.daemon = True
self._loop_thread.start()
def tearDown(self):
"""Call after every test case."""
self.smtpd.close()
self._active = False
self._loop_thread.join()
super(SMTPActionTest, self).tearDown()
def _exec_and_wait(self, doaction, timeout=3, short=False):
if short: timeout /= 25
self.smtpd.ready = False
doaction()
Utils.wait_for(lambda: self.smtpd.ready, timeout)
def testStart(self):
self._exec_and_wait(self.action.start)
self.assertEqual(self.smtpd.mailfrom, "fail2ban")
self.assertEqual(self.smtpd.rcpttos, ["root"])
self.assertTrue(
"Subject: [Fail2Ban] %s: started" % self.jail.name
in self.smtpd.data)
def testStop(self):
self._exec_and_wait(self.action.stop)
self.assertEqual(self.smtpd.mailfrom, "fail2ban")
self.assertEqual(self.smtpd.rcpttos, ["root"])
self.assertTrue(
"Subject: [Fail2Ban] %s: stopped" %
self.jail.name in self.smtpd.data)
def _testBan(self, restored=False):
aInfo = {
'ip': "127.0.0.2",
'failures': 3,
'matches': "Test fail 1\n",
'ipjailmatches': "Test fail 1\nTest Fail2\n",
'ipmatches': "Test fail 1\nTest Fail2\nTest Fail3\n",
}
if restored:
aInfo['restored'] = 1
self._exec_and_wait(lambda: self.action.ban(aInfo), short=restored)
if restored: # no mail, should raises attribute error:
self.assertRaises(AttributeError, lambda: self.smtpd.mailfrom)
return
self.assertEqual(self.smtpd.mailfrom, "fail2ban")
self.assertEqual(self.smtpd.rcpttos, ["root"])
subject = "Subject: [Fail2Ban] %s: banned %s" % (
self.jail.name, aInfo['ip'])
self.assertIn(subject, self.smtpd.data)
self.assertIn(
"%i attempts" % aInfo['failures'], self.smtpd.data)
self.action.matches = "matches"
self._exec_and_wait(lambda: self.action.ban(aInfo))
self.assertIn(aInfo['matches'], self.smtpd.data)
self.action.matches = "ipjailmatches"
self._exec_and_wait(lambda: self.action.ban(aInfo))
self.assertIn(aInfo['ipjailmatches'], self.smtpd.data)
self.action.matches = "ipmatches"
self._exec_and_wait(lambda: self.action.ban(aInfo))
self.assertIn(aInfo['ipmatches'], self.smtpd.data)
def testBan(self):
self._testBan()
def testNOPByRestored(self):
self._testBan(restored=True)
def testOptions(self):
self._exec_and_wait(self.action.start)
self.assertEqual(self.smtpd.mailfrom, "fail2ban")
self.assertEqual(self.smtpd.rcpttos, ["root"])
self.action.fromname = "Test"
self.action.fromaddr = "[email protected]"
self.action.toaddr = "[email protected], [email protected]"
self._exec_and_wait(self.action.start)
self.assertEqual(self.smtpd.mailfrom, "[email protected]")
self.assertTrue("From: %s <%s>" %
(self.action.fromname, self.action.fromaddr) in self.smtpd.data)
self.assertEqual(set(self.smtpd.rcpttos), set(["[email protected]", "[email protected]"]))
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