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ca-certificates-mozilla/certdata2pem.py

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#!/usr/bin/python
# vim:set et sw=4:
#
# certdata2pem.py - splits certdata.txt into multiple files
#
# Copyright (C) 2009 Philipp Kern <pkern@debian.org>
# Copyright (C) 2013 Kai Engert <kaie@redhat.com>
#
# 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 St, Fifth Floor, Boston, MA 02110-1301,
# USA.
import base64
import os.path
import re
import sys
import textwrap
import urllib
objects = []
def printable_serial(obj):
return ".".join(map(lambda x:str(ord(x)), obj['CKA_SERIAL_NUMBER']))
# Dirty file parser.
in_data, in_multiline, in_obj = False, False, False
field, type, value, obj = None, None, None, dict()
for line in open('certdata.txt', 'r'):
# Ignore the file header.
if not in_data:
if line.startswith('BEGINDATA'):
in_data = True
continue
# Ignore comment lines.
if line.startswith('#'):
continue
# Empty lines are significant if we are inside an object.
if in_obj and len(line.strip()) == 0:
objects.append(obj)
obj = dict()
in_obj = False
continue
if len(line.strip()) == 0:
continue
if in_multiline:
if not line.startswith('END'):
if type == 'MULTILINE_OCTAL':
line = line.strip()
for i in re.finditer(r'\\([0-3][0-7][0-7])', line):
value += chr(int(i.group(1), 8))
else:
value += line
continue
obj[field] = value
in_multiline = False
continue
if line.startswith('CKA_CLASS'):
in_obj = True
line_parts = line.strip().split(' ', 2)
if len(line_parts) > 2:
field, type = line_parts[0:2]
value = ' '.join(line_parts[2:])
elif len(line_parts) == 2:
field, type = line_parts
value = None
else:
raise NotImplementedError, 'line_parts < 2 not supported.\n' + line
if type == 'MULTILINE_OCTAL':
in_multiline = True
value = ""
continue
obj[field] = value
if len(obj.items()) > 0:
objects.append(obj)
# Build up trust database.
trustmap = dict()
for obj in objects:
if obj['CKA_CLASS'] != 'CKO_NSS_TRUST':
continue
key = obj['CKA_LABEL'] + printable_serial(obj)
trustmap[key] = obj
print " added trust", key
# Build up cert database.
certmap = dict()
for obj in objects:
if obj['CKA_CLASS'] != 'CKO_CERTIFICATE':
continue
key = obj['CKA_LABEL'] + printable_serial(obj)
certmap[key] = obj
print " added cert", key
def obj_to_filename(obj):
label = obj['CKA_LABEL'][1:-1]
label = label.replace('/', '_')\
.replace(' ', '_')\
.replace('(', '=')\
.replace(')', '=')\
.replace(',', '_')
label = re.sub(r'\\x[0-9a-fA-F]{2}', lambda m:chr(int(m.group(0)[2:], 16)), label)
serial = printable_serial(obj)
return label + ":" + serial
trust_types = {
"CKA_TRUST_DIGITAL_SIGNATURE": "digital-signature",
"CKA_TRUST_NON_REPUDIATION": "non-repudiation",
"CKA_TRUST_KEY_ENCIPHERMENT": "key-encipherment",
"CKA_TRUST_DATA_ENCIPHERMENT": "data-encipherment",
"CKA_TRUST_KEY_AGREEMENT": "key-agreement",
"CKA_TRUST_KEY_CERT_SIGN": "cert-sign",
"CKA_TRUST_CRL_SIGN": "crl-sign",
"CKA_TRUST_SERVER_AUTH": "server-auth",
"CKA_TRUST_CLIENT_AUTH": "client-auth",
"CKA_TRUST_CODE_SIGNING": "code-signing",
"CKA_TRUST_EMAIL_PROTECTION": "email-protection",
"CKA_TRUST_IPSEC_END_SYSTEM": "ipsec-end-system",
"CKA_TRUST_IPSEC_TUNNEL": "ipsec-tunnel",
"CKA_TRUST_IPSEC_USER": "ipsec-user",
"CKA_TRUST_TIME_STAMPING": "time-stamping",
"CKA_TRUST_STEP_UP_APPROVED": "step-up-approved",
}
openssl_trust = {
"CKA_TRUST_SERVER_AUTH": "serverAuth",
"CKA_TRUST_CLIENT_AUTH": "clientAuth",
"CKA_TRUST_CODE_SIGNING": "codeSigning",
"CKA_TRUST_EMAIL_PROTECTION": "emailProtection",
}
for tobj in objects:
if tobj['CKA_CLASS'] == 'CKO_NSS_TRUST':
key = tobj['CKA_LABEL'] + printable_serial(tobj)
print "producing trust for " + key
trustbits = []
distrustbits = []
openssl_trustflags = []
openssl_distrustflags = []
for t in trust_types.keys():
if tobj.has_key(t) and tobj[t] == 'CKT_NSS_TRUSTED_DELEGATOR':
trustbits.append(t)
if t in openssl_trust:
openssl_trustflags.append(openssl_trust[t])
if tobj.has_key(t) and tobj[t] == 'CKT_NSS_NOT_TRUSTED':
distrustbits.append(t)
if t in openssl_trust:
openssl_distrustflags.append(openssl_trust[t])
fname = obj_to_filename(tobj)
try:
obj = certmap[key]
except:
obj = None
if obj != None:
fname += ".crt"
else:
fname += ".p11-kit"
f = open(fname, 'w')
if obj != None:
f.write("# alias=%s\n"%tobj['CKA_LABEL'][1:-1])
f.write("# trust=" + " ".join(trustbits) + "\n")
f.write("# distrust=" + " ".join(distrustbits) + "\n")
if openssl_trustflags:
f.write("# openssl-trust=" + " ".join(openssl_trustflags) + "\n")
if openssl_distrustflags:
f.write("# openssl-distrust=" + " ".join(openssl_distrustflags) + "\n")
f.write("-----BEGIN CERTIFICATE-----\n")
f.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
f.write("\n-----END CERTIFICATE-----\n")
else:
f.write("[p11-kit-object-v1]\n")
f.write("label: ");
f.write(tobj['CKA_LABEL']);
f.write("\n")
f.write("class: certificate\n")
f.write("certificate-type: x-509\n")
f.write("issuer: \"");
f.write(urllib.quote(tobj['CKA_ISSUER']));
f.write("\"\n")
f.write("serial-number: \"");
f.write(urllib.quote(tobj['CKA_SERIAL_NUMBER']));
f.write("\"\n")
if (tobj['CKA_TRUST_SERVER_AUTH'] == 'CKT_NSS_NOT_TRUSTED') or (tobj['CKA_TRUST_EMAIL_PROTECTION'] == 'CKT_NSS_NOT_TRUSTED') or (tobj['CKA_TRUST_CODE_SIGNING'] == 'CKT_NSS_NOT_TRUSTED'):
f.write("x-distrusted: true\n")
f.write("\n\n")
print " -> written as '%s', trust = %s, openssl-trust = %s, distrust = %s, openssl-distrust = %s" % (fname, trustbits, openssl_trustflags, distrustbits, openssl_distrustflags)
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