mirror of
https://github.com/adulau/crl-monitor.git
synced 2024-11-22 10:07:05 +00:00
83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# Tool to dump DN from DER encoded X.509 certificate (in Base64)
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#
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# Software is free software released under the GNU General Public License version 3 and later
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#
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# Copyright (c) 2014-2015 Alexandre Dulaunoy - a@foo.be
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import fileinput
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from M2Crypto import X509
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import base64
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import argparse
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import redis
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import sys
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import os
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def bpath(ha=None, level=6):
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if ha is None:
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return False
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fn = ""
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for i in range(0, level*2, 2):
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fn = fn + "/"+ ha[i:2+i]
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return fn
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argParser = argparse.ArgumentParser(description='Dump DN from X.509 certificates')
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argParser.add_argument('-c', action='store_true', default=True, help='Dump CSV')
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argParser.add_argument('-s', action='store_true', default=False, help='Store in Redis')
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argParser.add_argument('-b', default='127.0.0.1', help='Redis host (default is 127.0.0.1)')
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argParser.add_argument('-p', default=6379, help='Redis TCP port (default is 6379)')
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argParser.add_argument('-v', action='store_true', help='Verbose output')
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argParser.add_argument('-k', default=False, action='store_true', help='Add certificate to keystore')
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argParser.add_argument('-d', default=None, help='Certificate directory')
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argParser.add_argument('-r', default='-', help='Read from a file, default is stdin')
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args = argParser.parse_args()
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if args.s:
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try:
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#Redis structure Set of (Subject) per FP
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r = redis.StrictRedis(host=args.b, port=args.p)
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except:
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print "Unable to connect to the Redis server"
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sys.exit(1)
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if args.k:
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if args.d is None:
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print "You need to set the certificate directory -d"
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sys.exit(1)
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for cert in fileinput.input(args.r):
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try:
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fp = cert.split(",")[0]
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certb = base64.b64decode(cert.split(",")[1])
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except:
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if args.v:
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print "Padding error "+str(fileinput.lineno())
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pass
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if args.k:
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p = args.d + "/" + bpath(ha=fp)
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if not os.path.exists(p):
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os.makedirs(p)
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fn = os.path.join(p,fp)
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if not os.path.exists(fn):
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f = open(fn, 'w+')
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f.write(certb)
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f.close()
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if args.v:
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print "Certificate saved in " +fn
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try:
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x509 = X509.load_cert_string(certb, X509.FORMAT_DER)
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except:
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print "At line number "+str(fileinput.lineno())+" parsing error"
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pass
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subject = x509.get_subject().as_text()
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if subject is not None:
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if not args.s:
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print fp +","+ subject
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elif args.s:
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r.sadd(fp, subject)
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else:
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sys.exit(1)
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