399 lines
16 KiB
Python
399 lines
16 KiB
Python
#!/usr/bin/python
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# vim:set et sw=4:
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#
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# certdata2pem.py - splits certdata.txt into multiple files
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#
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# Copyright (C) 2009 Philipp Kern <pkern@debian.org>
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# Copyright (C) 2013 Kai Engert <kaie@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
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# USA.
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import base64
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import os.path
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import re
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import sys
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import textwrap
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import urllib.request, urllib.parse, urllib.error
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import subprocess
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objects = []
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def printable_serial(obj):
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return ".".join([str(x) for x in obj['CKA_SERIAL_NUMBER']])
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# Dirty file parser.
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in_data, in_multiline, in_obj = False, False, False
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field, ftype, value, binval, obj = None, None, None, bytearray(), dict()
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for line in open('certdata.txt', 'r'):
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# Ignore the file header.
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if not in_data:
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if line.startswith('BEGINDATA'):
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in_data = True
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continue
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# Ignore comment lines.
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if line.startswith('#'):
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continue
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# Empty lines are significant if we are inside an object.
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if in_obj and len(line.strip()) == 0:
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objects.append(obj)
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obj = dict()
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in_obj = False
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continue
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if len(line.strip()) == 0:
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continue
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if in_multiline:
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if not line.startswith('END'):
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if ftype == 'MULTILINE_OCTAL':
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line = line.strip()
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for i in re.finditer(r'\\([0-3][0-7][0-7])', line):
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integ = int(i.group(1), 8)
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binval.extend((integ).to_bytes(1, sys.byteorder))
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obj[field] = binval
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else:
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value += line
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obj[field] = value
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continue
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in_multiline = False
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continue
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if line.startswith('CKA_CLASS'):
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in_obj = True
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line_parts = line.strip().split(' ', 2)
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if len(line_parts) > 2:
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field, ftype = line_parts[0:2]
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value = ' '.join(line_parts[2:])
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elif len(line_parts) == 2:
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field, ftype = line_parts
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value = None
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else:
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raise NotImplementedError('line_parts < 2 not supported.\n' + line)
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if ftype == 'MULTILINE_OCTAL':
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in_multiline = True
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value = ""
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binval = bytearray()
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continue
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obj[field] = value
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if len(list(obj.items())) > 0:
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objects.append(obj)
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# Build up trust database.
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trustmap = dict()
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for obj in objects:
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if obj['CKA_CLASS'] != 'CKO_NSS_TRUST':
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continue
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key = obj['CKA_LABEL'] + printable_serial(obj)
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trustmap[key] = obj
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print(" added trust", key)
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# Build up cert database.
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certmap = dict()
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for obj in objects:
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if obj['CKA_CLASS'] != 'CKO_CERTIFICATE':
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continue
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key = obj['CKA_LABEL'] + printable_serial(obj)
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certmap[key] = obj
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print(" added cert", key)
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def obj_to_filename(obj):
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label = obj['CKA_LABEL'][1:-1]
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label = label.replace('/', '_')\
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.replace(' ', '_')\
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.replace('(', '=')\
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.replace(')', '=')\
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.replace(',', '_')
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labelbytes = bytearray()
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i = 0
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imax = len(label)
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while i < imax:
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if i < imax-3 and label[i] == '\\' and label[i+1] == 'x':
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labelbytes.extend(bytes.fromhex(label[i+2:i+4]))
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i += 4
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continue
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labelbytes.extend(str.encode(label[i]))
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i = i+1
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continue
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label = labelbytes.decode('utf-8')
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serial = printable_serial(obj)
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return label + ":" + serial
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def write_cert_ext_to_file(f, oid, value, public_key):
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f.write("[p11-kit-object-v1]\n")
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f.write("label: ");
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f.write(tobj['CKA_LABEL'])
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f.write("\n")
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f.write("class: x-certificate-extension\n");
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f.write("object-id: " + oid + "\n")
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f.write("value: \"" + value + "\"\n")
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f.write("modifiable: false\n");
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f.write(public_key)
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trust_types = {
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"CKA_TRUST_DIGITAL_SIGNATURE": "digital-signature",
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"CKA_TRUST_NON_REPUDIATION": "non-repudiation",
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"CKA_TRUST_KEY_ENCIPHERMENT": "key-encipherment",
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"CKA_TRUST_DATA_ENCIPHERMENT": "data-encipherment",
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"CKA_TRUST_KEY_AGREEMENT": "key-agreement",
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"CKA_TRUST_KEY_CERT_SIGN": "cert-sign",
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"CKA_TRUST_CRL_SIGN": "crl-sign",
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"CKA_TRUST_SERVER_AUTH": "server-auth",
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"CKA_TRUST_CLIENT_AUTH": "client-auth",
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"CKA_TRUST_CODE_SIGNING": "code-signing",
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"CKA_TRUST_EMAIL_PROTECTION": "email-protection",
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"CKA_TRUST_IPSEC_END_SYSTEM": "ipsec-end-system",
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"CKA_TRUST_IPSEC_TUNNEL": "ipsec-tunnel",
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"CKA_TRUST_IPSEC_USER": "ipsec-user",
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"CKA_TRUST_TIME_STAMPING": "time-stamping",
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"CKA_TRUST_STEP_UP_APPROVED": "step-up-approved",
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}
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legacy_trust_types = {
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"LEGACY_CKA_TRUST_SERVER_AUTH": "server-auth",
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"LEGACY_CKA_TRUST_CODE_SIGNING": "code-signing",
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"LEGACY_CKA_TRUST_EMAIL_PROTECTION": "email-protection",
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}
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legacy_to_real_trust_types = {
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"LEGACY_CKA_TRUST_SERVER_AUTH": "CKA_TRUST_SERVER_AUTH",
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"LEGACY_CKA_TRUST_CODE_SIGNING": "CKA_TRUST_CODE_SIGNING",
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"LEGACY_CKA_TRUST_EMAIL_PROTECTION": "CKA_TRUST_EMAIL_PROTECTION",
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}
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openssl_trust = {
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"CKA_TRUST_SERVER_AUTH": "serverAuth",
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"CKA_TRUST_CLIENT_AUTH": "clientAuth",
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"CKA_TRUST_CODE_SIGNING": "codeSigning",
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"CKA_TRUST_EMAIL_PROTECTION": "emailProtection",
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}
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for tobj in objects:
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if tobj['CKA_CLASS'] == 'CKO_NSS_TRUST':
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key = tobj['CKA_LABEL'] + printable_serial(tobj)
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print("producing trust for " + key)
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trustbits = []
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distrustbits = []
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openssl_trustflags = []
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openssl_distrustflags = []
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legacy_trustbits = []
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legacy_openssl_trustflags = []
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for t in list(trust_types.keys()):
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if t in tobj and tobj[t] == 'CKT_NSS_TRUSTED_DELEGATOR':
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trustbits.append(t)
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if t in openssl_trust:
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openssl_trustflags.append(openssl_trust[t])
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if t in tobj and tobj[t] == 'CKT_NSS_NOT_TRUSTED':
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distrustbits.append(t)
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if t in openssl_trust:
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openssl_distrustflags.append(openssl_trust[t])
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for t in list(legacy_trust_types.keys()):
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if t in tobj and tobj[t] == 'CKT_NSS_TRUSTED_DELEGATOR':
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real_t = legacy_to_real_trust_types[t]
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legacy_trustbits.append(real_t)
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if real_t in openssl_trust:
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legacy_openssl_trustflags.append(openssl_trust[real_t])
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if t in tobj and tobj[t] == 'CKT_NSS_NOT_TRUSTED':
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raise NotImplementedError('legacy distrust not supported.\n' + line)
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fname = obj_to_filename(tobj)
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try:
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obj = certmap[key]
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except:
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obj = None
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# optional debug code, that dumps the parsed input to files
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#fulldump = "dump-" + fname
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#dumpf = open(fulldump, 'w')
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#dumpf.write(str(obj));
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#dumpf.write(str(tobj));
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#dumpf.close();
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is_legacy = 0
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if 'LEGACY_CKA_TRUST_SERVER_AUTH' in tobj or 'LEGACY_CKA_TRUST_EMAIL_PROTECTION' in tobj or 'LEGACY_CKA_TRUST_CODE_SIGNING' in tobj:
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is_legacy = 1
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if obj == None:
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raise NotImplementedError('found legacy trust without certificate.\n' + line)
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legacy_fname = "legacy-default/" + fname + ".crt"
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f = open(legacy_fname, 'w')
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f.write("# alias=%s\n"%tobj['CKA_LABEL'])
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f.write("# trust=" + " ".join(legacy_trustbits) + "\n")
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if legacy_openssl_trustflags:
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f.write("# openssl-trust=" + " ".join(legacy_openssl_trustflags) + "\n")
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f.write("-----BEGIN CERTIFICATE-----\n")
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temp_encoded_b64 = base64.b64encode(obj['CKA_VALUE'])
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temp_wrapped = textwrap.wrap(temp_encoded_b64.decode(), 64)
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f.write("\n".join(temp_wrapped))
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f.write("\n-----END CERTIFICATE-----\n")
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f.close()
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if 'CKA_TRUST_SERVER_AUTH' in tobj or 'CKA_TRUST_EMAIL_PROTECTION' in tobj or 'CKA_TRUST_CODE_SIGNING' in tobj:
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legacy_fname = "legacy-disable/" + fname + ".crt"
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f = open(legacy_fname, 'w')
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f.write("# alias=%s\n"%tobj['CKA_LABEL'])
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f.write("# trust=" + " ".join(trustbits) + "\n")
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if openssl_trustflags:
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f.write("# openssl-trust=" + " ".join(openssl_trustflags) + "\n")
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f.write("-----BEGIN CERTIFICATE-----\n")
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f.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
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f.write("\n-----END CERTIFICATE-----\n")
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f.close()
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# don't produce p11-kit output for legacy certificates
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continue
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pk = ''
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cert_comment = ''
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if obj != None:
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# must extract the public key from the cert, let's use openssl
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cert_fname = "cert-" + fname
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fc = open(cert_fname, 'w')
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fc.write("-----BEGIN CERTIFICATE-----\n")
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temp_encoded_b64 = base64.b64encode(obj['CKA_VALUE'])
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temp_wrapped = textwrap.wrap(temp_encoded_b64.decode(), 64)
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fc.write("\n".join(temp_wrapped))
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fc.write("\n-----END CERTIFICATE-----\n")
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fc.close();
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pk_fname = "pubkey-" + fname
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fpkout = open(pk_fname, "w")
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dump_pk_command = ["openssl", "x509", "-in", cert_fname, "-noout", "-pubkey"]
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subprocess.call(dump_pk_command, stdout=fpkout)
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fpkout.close()
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with open (pk_fname, "r") as myfile:
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pk=myfile.read()
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# obtain certificate information suitable as a comment
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comment_fname = "comment-" + fname
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fcout = open(comment_fname, "w")
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comment_command = ["openssl", "x509", "-in", cert_fname, "-noout", "-text"]
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subprocess.call(comment_command, stdout=fcout)
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fcout.close()
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sed_command = ["sed", "--in-place", "s/^/#/", comment_fname]
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subprocess.call(sed_command)
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with open (comment_fname, "r", errors = 'replace') as myfile:
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cert_comment=myfile.read()
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fname += ".tmp-p11-kit"
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f = open(fname, 'w')
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if obj != None:
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is_distrusted = False
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has_server_trust = False
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has_email_trust = False
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has_code_trust = False
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if 'CKA_TRUST_SERVER_AUTH' in tobj:
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if tobj['CKA_TRUST_SERVER_AUTH'] == 'CKT_NSS_NOT_TRUSTED':
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is_distrusted = True
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elif tobj['CKA_TRUST_SERVER_AUTH'] == 'CKT_NSS_TRUSTED_DELEGATOR':
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has_server_trust = True
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if 'CKA_TRUST_EMAIL_PROTECTION' in tobj:
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if tobj['CKA_TRUST_EMAIL_PROTECTION'] == 'CKT_NSS_NOT_TRUSTED':
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is_distrusted = True
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elif tobj['CKA_TRUST_EMAIL_PROTECTION'] == 'CKT_NSS_TRUSTED_DELEGATOR':
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has_email_trust = True
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if 'CKA_TRUST_CODE_SIGNING' in tobj:
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if tobj['CKA_TRUST_CODE_SIGNING'] == 'CKT_NSS_NOT_TRUSTED':
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is_distrusted = True
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elif tobj['CKA_TRUST_CODE_SIGNING'] == 'CKT_NSS_TRUSTED_DELEGATOR':
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has_code_trust = True
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if is_distrusted:
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trust_ext_oid = "1.3.6.1.4.1.3319.6.10.1"
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trust_ext_value = "0.%06%0a%2b%06%01%04%01%99w%06%0a%01%04 0%1e%06%08%2b%06%01%05%05%07%03%04%06%08%2b%06%01%05%05%07%03%01%06%08%2b%06%01%05%05%07%03%03"
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write_cert_ext_to_file(f, trust_ext_oid, trust_ext_value, pk)
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trust_ext_oid = "2.5.29.37"
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if has_server_trust:
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if has_email_trust:
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if has_code_trust:
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# server + email + code
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trust_ext_value = "0%2a%06%03U%1d%25%01%01%ff%04 0%1e%06%08%2b%06%01%05%05%07%03%04%06%08%2b%06%01%05%05%07%03%01%06%08%2b%06%01%05%05%07%03%03"
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else:
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# server + email
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trust_ext_value = "0 %06%03U%1d%25%01%01%ff%04%160%14%06%08%2b%06%01%05%05%07%03%04%06%08%2b%06%01%05%05%07%03%01"
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else:
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if has_code_trust:
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# server + code
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trust_ext_value = "0 %06%03U%1d%25%01%01%ff%04%160%14%06%08%2b%06%01%05%05%07%03%01%06%08%2b%06%01%05%05%07%03%03"
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else:
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# server
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trust_ext_value = "0%16%06%03U%1d%25%01%01%ff%04%0c0%0a%06%08%2b%06%01%05%05%07%03%01"
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else:
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if has_email_trust:
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if has_code_trust:
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# email + code
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trust_ext_value = "0 %06%03U%1d%25%01%01%ff%04%160%14%06%08%2b%06%01%05%05%07%03%04%06%08%2b%06%01%05%05%07%03%03"
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else:
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# email
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trust_ext_value = "0%16%06%03U%1d%25%01%01%ff%04%0c0%0a%06%08%2b%06%01%05%05%07%03%04"
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else:
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if has_code_trust:
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# code
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trust_ext_value = "0%16%06%03U%1d%25%01%01%ff%04%0c0%0a%06%08%2b%06%01%05%05%07%03%03"
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else:
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# none
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trust_ext_value = "0%18%06%03U%1d%25%01%01%ff%04%0e0%0c%06%0a%2b%06%01%04%01%99w%06%0a%10"
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# no 2.5.29.37 for neutral certificates
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if (is_distrusted or has_server_trust or has_email_trust or has_code_trust):
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write_cert_ext_to_file(f, trust_ext_oid, trust_ext_value, pk)
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pk = ''
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f.write("\n")
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f.write("[p11-kit-object-v1]\n")
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f.write("label: ");
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f.write(tobj['CKA_LABEL'])
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f.write("\n")
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if is_distrusted:
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f.write("x-distrusted: true\n")
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elif has_server_trust or has_email_trust or has_code_trust:
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f.write("trusted: true\n")
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else:
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f.write("trusted: false\n")
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# requires p11-kit >= 0.23.4
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f.write("nss-mozilla-ca-policy: true\n")
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f.write("modifiable: false\n");
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f.write("-----BEGIN CERTIFICATE-----\n")
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temp_encoded_b64 = base64.b64encode(obj['CKA_VALUE'])
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temp_wrapped = textwrap.wrap(temp_encoded_b64.decode(), 64)
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f.write("\n".join(temp_wrapped))
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f.write("\n-----END CERTIFICATE-----\n")
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f.write(cert_comment)
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f.write("\n")
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else:
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f.write("[p11-kit-object-v1]\n")
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f.write("label: ");
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f.write(tobj['CKA_LABEL']);
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f.write("\n")
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f.write("class: certificate\n")
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f.write("certificate-type: x-509\n")
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f.write("modifiable: false\n");
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f.write("issuer: \"");
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f.write(urllib.parse.quote(tobj['CKA_ISSUER']));
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f.write("\"\n")
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f.write("serial-number: \"");
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f.write(urllib.parse.quote(tobj['CKA_SERIAL_NUMBER']));
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f.write("\"\n")
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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'):
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f.write("x-distrusted: true\n")
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f.write("\n\n")
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f.close()
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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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