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base/SOURCES/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
import subprocess
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
def write_cert_ext_to_file(f, oid, value, public_key):
f.write("[p11-kit-object-v1]\n")
f.write("label: ");
f.write(tobj['CKA_LABEL'])
f.write("\n")
f.write("class: x-certificate-extension\n");
f.write("object-id: " + oid + "\n")
f.write("value: \"" + value + "\"\n")
f.write("modifiable: false\n");
f.write(public_key)
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",
}
legacy_trust_types = {
"LEGACY_CKA_TRUST_SERVER_AUTH": "server-auth",
"LEGACY_CKA_TRUST_CODE_SIGNING": "code-signing",
"LEGACY_CKA_TRUST_EMAIL_PROTECTION": "email-protection",
}
legacy_to_real_trust_types = {
"LEGACY_CKA_TRUST_SERVER_AUTH": "CKA_TRUST_SERVER_AUTH",
"LEGACY_CKA_TRUST_CODE_SIGNING": "CKA_TRUST_CODE_SIGNING",
"LEGACY_CKA_TRUST_EMAIL_PROTECTION": "CKA_TRUST_EMAIL_PROTECTION",
}
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 = []
legacy_trustbits = []
legacy_openssl_trustflags = []
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])
for t in legacy_trust_types.keys():
if tobj.has_key(t) and tobj[t] == 'CKT_NSS_TRUSTED_DELEGATOR':
real_t = legacy_to_real_trust_types[t]
legacy_trustbits.append(real_t)
if real_t in openssl_trust:
legacy_openssl_trustflags.append(openssl_trust[real_t])
if tobj.has_key(t) and tobj[t] == 'CKT_NSS_NOT_TRUSTED':
raise NotImplementedError, 'legacy distrust not supported.\n' + line
fname = obj_to_filename(tobj)
try:
obj = certmap[key]
except:
obj = None
# optional debug code, that dumps the parsed input to files
#fulldump = "dump-" + fname
#dumpf = open(fulldump, 'w')
#dumpf.write(str(obj));
#dumpf.write(str(tobj));
#dumpf.close();
is_legacy = 0
if tobj.has_key('LEGACY_CKA_TRUST_SERVER_AUTH') or tobj.has_key('LEGACY_CKA_TRUST_EMAIL_PROTECTION') or tobj.has_key('LEGACY_CKA_TRUST_CODE_SIGNING'):
is_legacy = 1
if obj == None:
raise NotImplementedError, 'found legacy trust without certificate.\n' + line
legacy_fname = "legacy-default/" + fname + ".crt"
f = open(legacy_fname, 'w')
f.write("# alias=%s\n"%tobj['CKA_LABEL'])
f.write("# trust=" + " ".join(legacy_trustbits) + "\n")
if legacy_openssl_trustflags:
f.write("# openssl-trust=" + " ".join(legacy_openssl_trustflags) + "\n")
f.write("-----BEGIN CERTIFICATE-----\n")
f.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
f.write("\n-----END CERTIFICATE-----\n")
f.close()
if tobj.has_key('CKA_TRUST_SERVER_AUTH') or tobj.has_key('CKA_TRUST_EMAIL_PROTECTION') or tobj.has_key('CKA_TRUST_CODE_SIGNING'):
legacy_fname = "legacy-disable/" + fname + ".crt"
f = open(legacy_fname, 'w')
f.write("# alias=%s\n"%tobj['CKA_LABEL'])
f.write("# trust=" + " ".join(trustbits) + "\n")
if openssl_trustflags:
f.write("# openssl-trust=" + " ".join(openssl_trustflags) + "\n")
f.write("-----BEGIN CERTIFICATE-----\n")
f.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
f.write("\n-----END CERTIFICATE-----\n")
f.close()
# don't produce p11-kit output for legacy certificates
continue
pk = ''
cert_comment = ''
if obj != None:
# must extract the public key from the cert, let's use openssl
cert_fname = "cert-" + fname
fc = open(cert_fname, 'w')
fc.write("-----BEGIN CERTIFICATE-----\n")
fc.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
fc.write("\n-----END CERTIFICATE-----\n")
fc.close();
pk_fname = "pubkey-" + fname
fpkout = open(pk_fname, "w")
dump_pk_command = ["openssl", "x509", "-in", cert_fname, "-noout", "-pubkey"]
subprocess.call(dump_pk_command, stdout=fpkout)
fpkout.close()
with open (pk_fname, "r") as myfile:
pk=myfile.read()
# obtain certificate information suitable as a comment
comment_fname = "comment-" + fname
fcout = open(comment_fname, "w")
comment_command = ["openssl", "x509", "-in", cert_fname, "-noout", "-text"]
subprocess.call(comment_command, stdout=fcout)
fcout.close()
sed_command = ["sed", "--in-place", "s/^/#/", comment_fname]
subprocess.call(sed_command)
with open (comment_fname, "r") as myfile:
cert_comment=myfile.read()
fname += ".tmp-p11-kit"
f = open(fname, 'w')
if obj != None:
is_distrusted = False
has_server_trust = False
has_email_trust = False
has_code_trust = False
if tobj.has_key('CKA_TRUST_SERVER_AUTH'):
if tobj['CKA_TRUST_SERVER_AUTH'] == 'CKT_NSS_NOT_TRUSTED':
is_distrusted = True
elif tobj['CKA_TRUST_SERVER_AUTH'] == 'CKT_NSS_TRUSTED_DELEGATOR':
has_server_trust = True
if tobj.has_key('CKA_TRUST_EMAIL_PROTECTION'):
if tobj['CKA_TRUST_EMAIL_PROTECTION'] == 'CKT_NSS_NOT_TRUSTED':
is_distrusted = True
elif tobj['CKA_TRUST_EMAIL_PROTECTION'] == 'CKT_NSS_TRUSTED_DELEGATOR':
has_email_trust = True
if tobj.has_key('CKA_TRUST_CODE_SIGNING'):
if tobj['CKA_TRUST_CODE_SIGNING'] == 'CKT_NSS_NOT_TRUSTED':
is_distrusted = True
elif tobj['CKA_TRUST_CODE_SIGNING'] == 'CKT_NSS_TRUSTED_DELEGATOR':
has_code_trust = True
if is_distrusted:
trust_ext_oid = "1.3.6.1.4.1.3319.6.10.1"
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"
write_cert_ext_to_file(f, trust_ext_oid, trust_ext_value, pk)
trust_ext_oid = "2.5.29.37"
if has_server_trust:
if has_email_trust:
if has_code_trust:
# server + email + code
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"
else:
# server + email
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"
else:
if has_code_trust:
# server + code
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"
else:
# server
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"
else:
if has_email_trust:
if has_code_trust:
# email + code
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"
else:
# email
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"
else:
if has_code_trust:
# code
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"
else:
# none
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"
# no 2.5.29.37 for neutral certificates
if (is_distrusted or has_server_trust or has_email_trust or has_code_trust):
write_cert_ext_to_file(f, trust_ext_oid, trust_ext_value, pk)
pk = ''
f.write("\n")
f.write("[p11-kit-object-v1]\n")
f.write("label: ");
f.write(tobj['CKA_LABEL'])
f.write("\n")
if is_distrusted:
f.write("x-distrusted: true\n")
elif has_server_trust or has_email_trust or has_code_trust:
f.write("trusted: true\n")
else:
f.write("trusted: false\n")
# requires p11-kit >= 0.23.4
f.write("nss-mozilla-ca-policy: true\n")
f.write("modifiable: false\n");
f.write("-----BEGIN CERTIFICATE-----\n")
f.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
f.write("\n-----END CERTIFICATE-----\n")
f.write(cert_comment)
f.write("\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("modifiable: false\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)