# Copyright (C) 2005-2014 Bastian Kleineidam
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from datetime import datetime
[docs]def x509_to_dict(x509):
"""Parse a x509 pyopenssl object to a dictionary with keys
subject, subjectAltName and optional notAfter.
"""
from requests.packages.urllib3.contrib.pyopenssl import get_subj_alt_name
res = {
'subject': ((('commonName', x509.get_subject().CN),),),
'subjectAltName': [('DNS', value) for value in get_subj_alt_name(x509)]
}
notAfter = x509.get_notAfter()
if notAfter is not None:
notAfter = notAfter.decode()
parsedtime = asn1_generaltime_to_seconds(notAfter)
if parsedtime is not None:
res['notAfter'] = parsedtime.strftime('%b %d %H:%M:%S %Y')
if parsedtime.tzinfo is None:
res['notAfter'] += ' GMT'
else:
# give up parsing, just set the string
res['notAfter'] = notAfter
return res
[docs]def asn1_generaltime_to_seconds(timestr):
"""The given string has one of the following formats
YYYYMMDDhhmmssZ
YYYYMMDDhhmmss+hhmm
YYYYMMDDhhmmss-hhmm
@return: a datetime object or None on error
"""
res = None
timeformat = "%Y%m%d%H%M%S"
try:
res = datetime.strptime(timestr, timeformat + 'Z')
except ValueError:
try:
res = datetime.strptime(timestr, timeformat + '%z')
except ValueError:
pass
return res
[docs]def get_content_type(headers):
"""
Get the MIME type from the Content-Type header value, or
'application/octet-stream' if not found.
@return: MIME type
@rtype: string
"""
ptype = headers.get('Content-Type', 'application/octet-stream')
if ";" in ptype:
# split off not needed extension info
ptype = ptype.split(';')[0]
return ptype.strip().lower()