2015-01-31 17:24:31 +00:00
|
|
|
#!/usr/bin/env python
|
|
|
|
|
# -*- coding: utf-8 -*-
|
|
|
|
|
#
|
|
|
|
|
# Tool to parse output of ssldump (not compiled with OpenSSL) to dump raw certificate
|
|
|
|
|
#
|
|
|
|
|
# Software is free software released under the GNU General Public License version 3 and later
|
|
|
|
|
#
|
|
|
|
|
# Copyright (c) 2015 Alexandre Dulaunoy - a@foo.be
|
|
|
|
|
|
|
|
|
|
import fileinput
|
|
|
|
|
import re
|
|
|
|
|
import binascii
|
|
|
|
|
import OpenSSL
|
2015-02-01 12:16:30 +00:00
|
|
|
import argparse
|
|
|
|
|
|
|
|
|
|
argParser = argparse.ArgumentParser(description='Extract certificate to PEM format from an ssldump output')
|
|
|
|
|
argParser.add_argument('-r', default='-', help='Read from a file, default is stdin')
|
|
|
|
|
args = argParser.parse_args()
|
2015-01-31 17:24:31 +00:00
|
|
|
|
|
|
|
|
cert = None
|
|
|
|
|
certstring = ""
|
|
|
|
|
|
2015-02-01 12:04:27 +00:00
|
|
|
certtag = re.compile('^\s+Certificate\s*$')
|
|
|
|
|
certtagend = re.compile('^\S+')
|
|
|
|
|
|
2015-02-01 12:16:30 +00:00
|
|
|
for l in fileinput.input(args.r):
|
2015-02-01 12:04:27 +00:00
|
|
|
if certtag.match(l):
|
2015-01-31 17:24:31 +00:00
|
|
|
cert = True
|
|
|
|
|
continue
|
2015-02-01 12:04:27 +00:00
|
|
|
elif certtagend.match(l):
|
2015-01-31 17:24:31 +00:00
|
|
|
cert = None
|
|
|
|
|
|
|
|
|
|
if (cert is True):
|
|
|
|
|
certstring += l.rstrip('\n')
|
|
|
|
|
|
|
|
|
|
if ((cert is None) and (len(certstring) > 0)):
|
|
|
|
|
y = re.sub(" ", "", certstring).split('=')
|
|
|
|
|
a = y[1].split('certificate')[0]
|
|
|
|
|
dercert = binascii.unhexlify(a)
|
|
|
|
|
x509 = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_ASN1, dercert)
|
|
|
|
|
fp = x509.digest('sha1').replace(':','').lower()
|
|
|
|
|
print OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM, x509)
|
|
|
|
|
certstring = ""
|
|
|
|
|
y = ""
|
