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# Copyright (C) 2014-2017 by the Free Software Foundation, Inc.
#
# This file is part of GNU Mailman.
#
# GNU Mailman 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 3 of the License, or (at your option)
# any later version.
#
# GNU Mailman 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
# GNU Mailman. If not, see <http://www.gnu.org/licenses/>.
"""Test MTA connections."""
import unittest
from mailman.config import config
from mailman.mta.connection import (
SMTPConnection, SMTPSConnection, STARTTLSConnection)
from mailman.testing.helpers import LogFileMark
from mailman.testing.layers import SMTPLayer, SMTPSLayer, STARTTLSLayer
from smtplib import SMTPAuthenticationError
class TestConnection(unittest.TestCase):
layer = SMTPLayer
def test_authentication_error(self):
# Logging in to the MTA with a bad user name and password produces a
# 571 Bad Authentication error.
with self.assertRaises(SMTPAuthenticationError) as cm:
connection = SMTPConnection(
config.mta.smtp_host, int(config.mta.smtp_port), 0,
'baduser', 'badpass')
connection.sendmail('anne@example.com', ['bart@example.com'], """\
From: anne@example.com
To: bart@example.com
Subject: aardvarks
""")
self.assertEqual(cm.exception.smtp_code, 571)
self.assertEqual(cm.exception.smtp_error, b'Bad authentication')
def test_authentication_good_path(self):
# Logging in with the correct user name and password succeeds.
connection = SMTPConnection(
config.mta.smtp_host, int(config.mta.smtp_port), 0,
'testuser', 'testpass')
connection.sendmail('anne@example.com', ['bart@example.com'], """\
From: anne@example.com
To: bart@example.com
Subject: aardvarks
""")
self.assertEqual(self.layer.smtpd.get_authentication_credentials(),
'AHRlc3R1c2VyAHRlc3RwYXNz')
class _ConnectionCounter:
layer = None
def setUp(self):
self.connection = None
self.msg_text = """\
From: anne@example.com
To: bart@example.com
Subject: aardvarks
"""
def test_count_0(self):
# So far, no connections.
unittest.TestCase.assertEqual(self,
self.layer.smtpd.get_connection_count(),
0)
pass
def test_count_1(self):
self.connection.sendmail(
'anne@example.com', ['bart@example.com'], self.msg_text)
unittest.TestCase.assertEqual(self,
self.layer.smtpd.get_connection_count(),
1)
pass
def test_count_2(self):
self.connection.sendmail(
'anne@example.com', ['bart@example.com'], self.msg_text)
self.connection.quit()
self.connection.sendmail(
'cate@example.com', ['dave@example.com'], self.msg_text)
self.connection.quit()
unittest.TestCase.assertEqual(self,
self.layer.smtpd.get_connection_count(),
2)
pass
def test_count_reset(self):
self.connection.sendmail(
'anne@example.com', ['bart@example.com'], self.msg_text)
self.connection.quit()
self.connection.sendmail(
'cate@example.com', ['dave@example.com'], self.msg_text)
self.connection.quit()
# Issue the fake SMTP command to reset the count.
self.layer.smtpd.reset()
unittest.TestCase.assertEqual(self,
self.layer.smtpd.get_connection_count(),
0)
class TestSMTPConnectionCount(_ConnectionCounter, unittest.TestCase):
layer = SMTPLayer
def setUp(self):
super().setUp()
self.connection = SMTPConnection(
config.mta.smtp_host, int(config.mta.smtp_port), 0)
class TestSMTPSConnectionCount(_ConnectionCounter, unittest.TestCase):
layer = SMTPSLayer
def setUp(self):
super().setUp()
self.connection = SMTPSConnection(
config.mta.smtp_host, int(config.mta.smtp_port), 0)
class TestSTARTTLSConnectionCount(_ConnectionCounter, unittest.TestCase):
layer = STARTTLSLayer
def setUp(self):
super().setUp()
self.connection = STARTTLSConnection(
config.mta.smtp_host, int(config.mta.smtp_port), 0)
class TestSTARTTLSNotSupported(unittest.TestCase):
layer = SMTPLayer
def test_not_supported(self):
connection = STARTTLSConnection(
config.mta.smtp_host, int(config.mta.smtp_port), 0)
msg_text = """\
From: anne@example.com
To: bart@example.com
Subject: aardvarks
"""
smtp_log = LogFileMark('mailman.smtp')
connection.sendmail(
'anne@example.com', ['bart@example.com'], msg_text)
lines = smtp_log.read()
self.assertIn('Starttls failed', lines)
connection.quit()
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