summarylogtreecommitdiffstats
path: root/certdata2pem.py
blob: 021772aea1abeecd86525c70d58880924c276da3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
#!/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'])
            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")
        f.close()
        print " -> written as '%s', trust = %s, openssl-trust = %s, distrust = %s, openssl-distrust = %s" % (fname, trustbits, openssl_trustflags, distrustbits, openssl_distrustflags)