68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
#!/usr/bin/python3
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Read an email message and send it through localhost.
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This is a separate script from the release notes email generator
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because it might be used for other things and it might not be used
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when notes are being send from a developer's system.
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"""
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import argparse
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import email
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import smtplib
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import tenacity
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--server', default='lists.openstack.org',
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help=('the SMTP server Valid forms are: server, '
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'server:port, user:pw@server or '
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'user:pw@server:port. Default: %(default)s'))
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parser.add_argument('-v', dest='verbose',
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action='store_true', default=False,
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help='turn on extra debugging output')
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parser.add_argument('infile', help='the file containing the email')
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args = parser.parse_args()
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user = None
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pw = None
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server = args.server
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if '@' in server:
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creds, _, server = args.server.partition('@')
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user, _, pw = creds.partition(':')
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with open(args.infile, 'r') as f:
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msg = email.message_from_file(f)
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tolist = [address.strip() for address in msg['to'].split(",")]
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send_email(server, msg, tolist, user=user, pw=pw, debug=args.verbose)
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@tenacity.retry(wait=tenacity.wait_exponential,
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stop=tenacity.stop_after_attempt(4))
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def send_email(smtp_server, msg, tolist, user=None, pw=None, debug=False):
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server = smtplib.SMTP(smtp_server)
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if debug:
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server.set_debuglevel(True)
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try:
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if pw:
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server.starttls()
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server.login(user, pw)
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server.sendmail(msg['from'], tolist, msg.as_string().encode('utf-8'))
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finally:
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server.quit()
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