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112 lines
3.7 KiB
Python
Executable File
112 lines
3.7 KiB
Python
Executable File
#!/usr/bin/python
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# vim:set et sw=4:
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#
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# Originally from:
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# http://cvs.fedoraproject.org/viewvc/F-13/ca-certificates/certdata2pem.py?revision=1.1&content-type=text%2Fplain&view=co
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#
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# certdata2pem.py - converts certdata.txt into PEM format.
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#
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# Copyright (C) 2009 Philipp Kern <pkern@debian.org>
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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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objects = []
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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, type, value, obj = None, None, None, dict()
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for line in sys.stdin:
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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 type == '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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value += chr(int(i.group(1), 8))
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else:
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value += line
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continue
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obj[field] = value
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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, type = 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, type = line_parts
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value = None
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else:
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raise NotImplementedError, 'line_parts < 2 not supported.'
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if type == 'MULTILINE_OCTAL':
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in_multiline = True
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value = ""
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continue
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obj[field] = value
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if len(obj.items()) > 0:
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objects.append(obj)
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# Build up trust database.
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trust = dict()
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for obj in objects:
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if obj['CKA_CLASS'] != 'CKO_NETSCAPE_TRUST':
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continue
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# For some reason, OpenSSL on Maemo has a bug where if we include
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# this certificate, and it winds up as the last certificate in the file,
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# then OpenSSL is unable to verify the server certificate. For now,
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# we'll just omit this particular CA cert, since it's not one we need
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# for crash reporting.
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# This is likely to be fragile if the NSS certdata.txt changes.
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# The bug is filed upstream:
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# https://bugs.maemo.org/show_bug.cgi?id=10069
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if obj['CKA_LABEL'] == '"ACEDICOM Root"':
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continue
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# We only want certs that are trusted for SSL server auth
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if obj['CKA_TRUST_SERVER_AUTH'] == 'CKT_NETSCAPE_TRUSTED_DELEGATOR':
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trust[obj['CKA_LABEL']] = True
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for obj in objects:
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if obj['CKA_CLASS'] == 'CKO_CERTIFICATE':
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if not obj['CKA_LABEL'] in trust or not trust[obj['CKA_LABEL']]:
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continue
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sys.stdout.write("-----BEGIN CERTIFICATE-----\n")
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sys.stdout.write("\n".join(textwrap.wrap(base64.b64encode(obj['CKA_VALUE']), 64)))
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sys.stdout.write("\n-----END CERTIFICATE-----\n\n")
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