WebRTC: Update set of known root certificates
Also included the script which generates this file.
TBR=juberti@webrtc.org
BUG=526258
Review URL: https://codereview.webrtc.org/1503473002 .
Cr-Commit-Position: refs/heads/master@{#10957}
diff --git a/tools/sslroots/generate_sslroots.py b/tools/sslroots/generate_sslroots.py
new file mode 100644
index 0000000..65751f1
--- /dev/null
+++ b/tools/sslroots/generate_sslroots.py
@@ -0,0 +1,190 @@
+# -*- coding:utf-8 -*-
+# Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS. All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+
+"""This is a tool to transform a crt file into a C/C++ header.
+
+Usage:
+generate_sslroots.py cert_file.crt [--verbose | -v] [--full_cert | -f]
+
+Arguments:
+ -v Print output while running.
+ -f Add public key and certificate name. Default is to skip and reduce
+ generated file size.
+"""
+
+import commands
+from optparse import OptionParser
+import os
+import re
+import string
+
+_GENERATED_FILE = 'sslroots.h'
+_PREFIX = '__generated__'
+_EXTENSION = '.crt'
+_SUBJECT_NAME_ARRAY = 'subject_name'
+_SUBJECT_NAME_VARIABLE = 'SubjectName'
+_PUBLIC_KEY_ARRAY = 'public_key'
+_PUBLIC_KEY_VARIABLE = 'PublicKey'
+_CERTIFICATE_ARRAY = 'certificate'
+_CERTIFICATE_VARIABLE = 'Certificate'
+_CERTIFICATE_SIZE_VARIABLE = 'CertificateSize'
+_INT_TYPE = 'size_t'
+_CHAR_TYPE = 'const unsigned char*'
+_VERBOSE = 'verbose'
+
+
+def main():
+ """The main entrypoint."""
+ parser = OptionParser('usage %prog FILE')
+ parser.add_option('-v', '--verbose', dest='verbose', action='store_true')
+ parser.add_option('-f', '--full_cert', dest='full_cert', action='store_true')
+ options, args = parser.parse_args()
+ if len(args) < 1:
+ parser.error('No crt file specified.')
+ return
+ root_dir = _SplitCrt(args[0], options)
+ _GenCFiles(root_dir, options)
+ _Cleanup(root_dir)
+
+
+def _SplitCrt(source_file, options):
+ sub_file_blocks = []
+ label_name = ''
+ root_dir = os.path.dirname(os.path.abspath(source_file)) + '/'
+ _PrintOutput(root_dir, options)
+ f = open(source_file)
+ for line in f:
+ if line.startswith('# Label: '):
+ sub_file_blocks.append(line)
+ label = re.search(r'\".*\"', line)
+ temp_label = label.group(0)
+ end = len(temp_label)-1
+ label_name = _SafeName(temp_label[1:end])
+ elif line.startswith('-----END CERTIFICATE-----'):
+ sub_file_blocks.append(line)
+ new_file_name = root_dir + _PREFIX + label_name + _EXTENSION
+ _PrintOutput('Generating: ' + new_file_name, options)
+ new_file = open(new_file_name, 'w')
+ for out_line in sub_file_blocks:
+ new_file.write(out_line)
+ new_file.close()
+ sub_file_blocks = []
+ else:
+ sub_file_blocks.append(line)
+ f.close()
+ return root_dir
+
+
+def _GenCFiles(root_dir, options):
+ output_header_file = open(root_dir + _GENERATED_FILE, 'w')
+ output_header_file.write(_CreateOutputHeader())
+ if options.full_cert:
+ subject_name_list = _CreateArraySectionHeader(_SUBJECT_NAME_VARIABLE,
+ _CHAR_TYPE, options)
+ public_key_list = _CreateArraySectionHeader(_PUBLIC_KEY_VARIABLE,
+ _CHAR_TYPE, options)
+ certificate_list = _CreateArraySectionHeader(_CERTIFICATE_VARIABLE,
+ _CHAR_TYPE, options)
+ certificate_size_list = _CreateArraySectionHeader(_CERTIFICATE_SIZE_VARIABLE,
+ _INT_TYPE, options)
+
+ for _, _, files in os.walk(root_dir):
+ for current_file in files:
+ if current_file.startswith(_PREFIX):
+ prefix_length = len(_PREFIX)
+ length = len(current_file) - len(_EXTENSION)
+ label = current_file[prefix_length:length]
+ filtered_output, cert_size = _CreateCertSection(root_dir, current_file,
+ label, options)
+ output_header_file.write(filtered_output + '\n\n\n')
+ if options.full_cert:
+ subject_name_list += _AddLabelToArray(label, _SUBJECT_NAME_ARRAY)
+ public_key_list += _AddLabelToArray(label, _PUBLIC_KEY_ARRAY)
+ certificate_list += _AddLabelToArray(label, _CERTIFICATE_ARRAY)
+ certificate_size_list += (' %s,\n') %(cert_size)
+
+ if options.full_cert:
+ subject_name_list += _CreateArraySectionFooter()
+ output_header_file.write(subject_name_list)
+ public_key_list += _CreateArraySectionFooter()
+ output_header_file.write(public_key_list)
+ certificate_list += _CreateArraySectionFooter()
+ output_header_file.write(certificate_list)
+ certificate_size_list += _CreateArraySectionFooter()
+ output_header_file.write(certificate_size_list)
+ output_header_file.close()
+
+
+def _Cleanup(root_dir):
+ for f in os.listdir(root_dir):
+ if f.startswith(_PREFIX):
+ os.remove(root_dir + f)
+
+
+def _CreateCertSection(root_dir, source_file, label, options):
+ command = 'openssl x509 -in %s%s -noout -C' %(root_dir, source_file)
+ _PrintOutput(command, options)
+ output = commands.getstatusoutput(command)[1]
+ renamed_output = output.replace('unsigned char XXX_',
+ 'const unsigned char ' + label + '_')
+ filtered_output = ''
+ cert_block = '^const unsigned char.*?};$'
+ prog = re.compile(cert_block, re.IGNORECASE | re.MULTILINE | re.DOTALL)
+ if not options.full_cert:
+ filtered_output = prog.sub('', renamed_output, count=2)
+ else:
+ filtered_output = renamed_output
+
+ cert_size_block = r'\d\d\d+'
+ prog2 = re.compile(cert_size_block, re.MULTILINE | re.VERBOSE)
+ result = prog2.findall(renamed_output)
+ cert_size = result[len(result) - 1]
+
+ return filtered_output, cert_size
+
+
+def _CreateOutputHeader():
+ output = ('// This file is the root certificates in C form that are needed to'
+ ' connect to\n// Google.\n\n'
+ '// It was generated with the following command line:\n'
+ '// > python tools/certs/generate_sslroots.py'
+ '\n// https://pki.google.com/roots.pem\n\n')
+ return output
+
+
+def _CreateArraySectionHeader(type_name, type_type, options):
+ output = ('const %s kSSLCert%sList[] = {\n') %(type_type, type_name)
+ _PrintOutput(output, options)
+ return output
+
+
+def _AddLabelToArray(label, type_name):
+ return ' %s_%s,\n' %(label, type_name)
+
+
+def _CreateArraySectionFooter():
+ return '};\n\n'
+
+
+def _SafeName(original_file_name):
+ bad_chars = ' -./\\()áéíőú'
+ replacement_chars = ''
+ for _ in bad_chars:
+ replacement_chars += '_'
+ translation_table = string.maketrans(bad_chars, replacement_chars)
+ return original_file_name.translate(translation_table)
+
+
+def _PrintOutput(output, options):
+ if options.verbose:
+ print output
+
+if __name__ == '__main__':
+ main()