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29d1bc0842
This is a wholesale reorganization and editing of the email documentation to make the new API the standard one, and the old API the 'legacy' one. The default is still the compat32 policy, for backward compatibility. We will change that eventually.
78 lines
3.0 KiB
Python
78 lines
3.0 KiB
Python
#!/usr/bin/env python3
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"""Send the contents of a directory as a MIME message."""
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import os
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import smtplib
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# For guessing MIME type based on file name extension
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import mimetypes
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from argparse import ArgumentParser
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from email.message import EmailMessage
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from email.policy import SMTP
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def main():
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parser = ArgumentParser(description="""\
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Send the contents of a directory as a MIME message.
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Unless the -o option is given, the email is sent by forwarding to your local
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SMTP server, which then does the normal delivery process. Your local machine
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must be running an SMTP server.
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""")
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parser.add_argument('-d', '--directory',
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help="""Mail the contents of the specified directory,
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otherwise use the current directory. Only the regular
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files in the directory are sent, and we don't recurse to
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subdirectories.""")
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parser.add_argument('-o', '--output',
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metavar='FILE',
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help="""Print the composed message to FILE instead of
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sending the message to the SMTP server.""")
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parser.add_argument('-s', '--sender', required=True,
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help='The value of the From: header (required)')
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parser.add_argument('-r', '--recipient', required=True,
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action='append', metavar='RECIPIENT',
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default=[], dest='recipients',
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help='A To: header value (at least one required)')
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args = parser.parse_args()
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directory = args.directory
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if not directory:
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directory = '.'
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# Create the message
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msg = EmailMessage()
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msg['Subject'] = 'Contents of directory %s' % os.path.abspath(directory)
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msg['To'] = ', '.join(args.recipients)
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msg['From'] = args.sender
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msg.preamble = 'You will not see this in a MIME-aware mail reader.\n'
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for filename in os.listdir(directory):
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path = os.path.join(directory, filename)
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if not os.path.isfile(path):
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continue
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# Guess the content type based on the file's extension. Encoding
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# will be ignored, although we should check for simple things like
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# gzip'd or compressed files.
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ctype, encoding = mimetypes.guess_type(path)
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if ctype is None or encoding is not None:
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# No guess could be made, or the file is encoded (compressed), so
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# use a generic bag-of-bits type.
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ctype = 'application/octet-stream'
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maintype, subtype = ctype.split('/', 1)
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with open(path, 'rb') as fp:
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msg.add_attachment(fp.read(),
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maintype=maintype,
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subtype=subtype,
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filename=filename)
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# Now send or store the message
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if args.output:
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with open(args.output, 'wb') as fp:
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fp.write(msg.as_bytes(policy=SMTP))
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else:
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with smtplib.SMTP('localhost') as s:
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s.send_message(msg)
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if __name__ == '__main__':
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main()
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