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69 lines
2.0 KiB
Python
69 lines
2.0 KiB
Python
6 years ago
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright: (c) 2018, Dag Wieers (@dagwieers) <dag@wieers.com>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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import asyncore
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import os.path
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import ssl
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import sys
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# Handle TLS and non-TLS support
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try:
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import smtpd_tls
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HAS_TLS = True
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except ImportError:
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import smtpd
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HAS_TLS = False
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print('Library smtpd-tls is missing or not supported, hence starttls is NOT supported.')
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# Handle custom ports
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port = '25:465'
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if len(sys.argv) > 1:
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port = sys.argv[1]
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ports = port.split(':')
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if len(ports) > 1:
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port1, port2 = int(ports[0]), int(ports[1])
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else:
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port1, port2 = int(port), None
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# Handle custom certificate
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basename = os.path.splitext(sys.argv[0])[0]
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certfile = basename + '.crt'
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if len(sys.argv) > 2:
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certfile = sys.argv[2]
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# Handle custom key
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keyfile = basename + '.key'
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if len(sys.argv) > 3:
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keyfile = sys.argv[3]
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try:
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ssl_ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
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except AttributeError:
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ssl_ctx = None
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if HAS_TLS:
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print('Python ssl library does not support SSLContext, hence starttls and TLS are not supported.')
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import smtpd
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if HAS_TLS and ssl_ctx is not None:
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print('Using %s and %s' % (certfile, keyfile))
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ssl_ctx.load_cert_chain(certfile=certfile, keyfile=keyfile)
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print('Start SMTP server on port', port1)
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smtp_server1 = smtpd_tls.DebuggingServer(('127.0.0.1', port1), None, ssl_ctx=ssl_ctx, starttls=True)
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if port2:
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print('Start TLS SMTP server on port', port2)
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smtp_server2 = smtpd_tls.DebuggingServer(('127.0.0.1', port2), None, ssl_ctx=ssl_ctx, starttls=False)
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else:
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print('Start SMTP server on port', port1)
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smtp_server1 = smtpd.DebuggingServer(('127.0.0.1', port1), None)
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if port2:
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print('WARNING: TLS is NOT supported on this system, not listening on port %s.' % port2)
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asyncore.loop()
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