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81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
# Copyright (C) 2005-2014 Bastian Kleineidam
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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 along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import base64
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from datetime import datetime
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def encode_base64(s):
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"""Encode given string in base64, excluding trailing newlines."""
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return base64.b64encode(s)
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def x509_to_dict(x509):
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"""Parse a x509 pyopenssl object to a dictionary with keys
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subject, subjectAltName and optional notAfter.
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"""
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from requests.packages.urllib3.contrib.pyopenssl import get_subj_alt_name
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res = {
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'subject': ((('commonName', x509.get_subject().CN),),),
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'subjectAltName': [('DNS', value) for value in get_subj_alt_name(x509)]
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}
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notAfter = x509.get_notAfter()
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if notAfter is not None:
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notAfter = notAfter.decode()
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parsedtime = asn1_generaltime_to_seconds(notAfter)
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if parsedtime is not None:
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res['notAfter'] = parsedtime.strftime('%b %d %H:%M:%S %Y')
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if parsedtime.tzinfo is None:
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res['notAfter'] += ' GMT'
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else:
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# give up parsing, just set the string
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res['notAfter'] = notAfter
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return res
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def asn1_generaltime_to_seconds(timestr):
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"""The given string has one of the following formats
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YYYYMMDDhhmmssZ
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YYYYMMDDhhmmss+hhmm
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YYYYMMDDhhmmss-hhmm
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@return: a datetime object or None on error
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"""
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res = None
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timeformat = "%Y%m%d%H%M%S"
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try:
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res = datetime.strptime(timestr, timeformat + 'Z')
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except ValueError:
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try:
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res = datetime.strptime(timestr, timeformat + '%z')
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except ValueError:
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pass
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return res
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def get_content_type(headers):
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"""
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Get the MIME type from the Content-Type header value, or
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'application/octet-stream' if not found.
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@return: MIME type
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@rtype: string
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"""
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ptype = headers.get('Content-Type', 'application/octet-stream')
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if ";" in ptype:
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# split off not needed extension info
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ptype = ptype.split(';')[0]
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return ptype.strip().lower()
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