39 lines
1.5 KiB
Python
39 lines
1.5 KiB
Python
# Some useful functions to extract data out of emails
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# Copyright (C) 2002-2015 John Goerzen & contributors
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import email
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from email.parser import Parser as MailParser
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def get_message_date(content, header='Date'):
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"""Parses mail and returns resulting timestamp.
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:param content: Mail content
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:param header: the header to extract date from;
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:returns: timestamp or `None` in the case of failure.
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"""
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message = MailParser().parsestr(content, True)
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dateheader = message.get(header)
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# parsedate_tz returns a 10-tuple that can be passed to mktime_tz
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# Will be None if missing or not in a valid format. Note that
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# indexes 6, 7, and 8 of the result tuple are not usable.
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datetuple = email.utils.parsedate_tz(dateheader)
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if datetuple is None:
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return None
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return email.utils.mktime_tz(datetuple)
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