Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 265 insertions, 0 deletions

diff --git a/third_party/libwebrtc/tools_webrtc/sslroots/README.md b/third_party/libwebrtc/tools_webrtc/sslroots/README.md
new file mode 100644
index 0000000000..0184a412a9
--- /dev/null
+++ b/third_party/libwebrtc/tools_webrtc/sslroots/README.md
@@ -0,0 +1,21 @@
+# Generate rtc_base/ssl_roots.h
+
+This directory contains a script to generate the content of
+[rtc_base/ssl_roots.h][ssl-roots-header], to update the SSL roots shipped
+by WebRTC follow this instructions:
+
+1. Download roots.pem from [pki.goog][pki-goog] or [curl.se][mozilla-cacert]
+
+2. Launch the script:
+
+```
+$ vpython3 tools_webrtc/sslroots/generate_sslroots.py <the pem file>
+```
+
+3. Step 2 should have generated an ssl_roots.h file right next to the pem file.
+
+4. Overwrite rtc_base/ssl_roots.h with the newly generated one.
+
+[ssl-roots-header]: https://cs.chromium.org/chromium/src/third_party/webrtc/rtc_base/ssl_roots.h
+[pki-goog]: https://www.google.com/url?q=https://pki.google.com/roots.pem
+[mozila-cacert]: https://curl.se/ca/cacert.pem
diff --git a/third_party/libwebrtc/tools_webrtc/sslroots/generate_sslroots.py b/third_party/libwebrtc/tools_webrtc/sslroots/generate_sslroots.py
new file mode 100644
index 0000000000..14acff92fb
--- /dev/null
+++ b/third_party/libwebrtc/tools_webrtc/sslroots/generate_sslroots.py
@@ -0,0 +1,244 @@
+#!/usr/bin/env vpython3
+
+# -*- coding:utf-8 -*-
+# Copyright (c) 2023 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.
+import argparse
+import logging
+from pathlib import Path
+import tempfile
+from typing import Tuple, Any, List, ByteString
+from datetime import datetime, timezone
+from hashlib import sha256
+from urllib.request import urlopen
+from asn1crypto import pem, x509
+
+_GENERATED_FILE = 'ssl_roots.h'
+
+def main():
+  parser = argparse.ArgumentParser(
+      description='This is a tool to transform a crt file '
+      f'into a C/C++ header: {_GENERATED_FILE}.')
+
+  parser.add_argument('source_path_or_url',
+                      help='File path or URL to PEM storage file. '
+                      'The supported cert files are: '
+                      '- Google: https://pki.goog/roots.pem; '
+                      '- Mozilla: https://curl.se/ca/cacert.pem')
+  parser.add_argument('-v',
+                      '--verbose',
+                      dest='verbose',
+                      action='store_true',
+                      help='Print output while running')
+  parser.add_argument('-f',
+                      '--full_cert',
+                      dest='full_cert',
+                      action='store_true',
+                      help='Add public key and certificate name. '
+                      'Default is to skip and reduce generated file size.')
+  args = parser.parse_args()
+  logging.basicConfig(level=logging.DEBUG if args.verbose else logging.WARNING)
+
+  with tempfile.TemporaryDirectory() as temp_dir:
+    cert_file = Path(temp_dir) / "cacert.pem"
+
+    if args.source_path_or_url.startswith(
+        'https://') or args.source_path_or_url.startswith('http://'):
+      _DownloadCertificatesStore(args.source_path_or_url, cert_file)
+      destination_dir = Path.cwd()
+    else:
+      source_path = Path(args.source_path_or_url)
+      cert_file.write_bytes(source_path.read_bytes())
+      destination_dir = source_path.parent
+
+    logging.debug('Stored certificate from %s into %s', args.source_path_or_url,
+                  cert_file)
+
+    header_file = destination_dir / _GENERATED_FILE
+
+    digest, certificates = _LoadCertificatesStore(cert_file)
+    _GenerateCHeader(header_file, args.source_path_or_url, digest, certificates,
+                     args.full_cert)
+
+    logging.debug('Did generate %s from %s [%s]', header_file,
+                  args.source_path_or_url, digest)
+
+
+def _DownloadCertificatesStore(pem_url: str, destination_file: Path):
+  with urlopen(pem_url) as response:
+    pem_file = response.read()
+    logging.info('Got response with status [%d]: %s', response.status, pem_url)
+
+  if destination_file.parent.exists():
+    logging.debug('Creating directory and it\'s parents %s',
+                  destination_file.parent)
+    destination_file.parent.mkdir(parents=True, exist_ok=True)
+  if destination_file.exists():
+    logging.debug('Unlink existing file %s', destination_file)
+    destination_file.unlink(missing_ok=True)
+
+  destination_file.write_bytes(pem_file)
+  logging.info('Stored downloaded %d bytes pem file to `%s`', len(pem_file),
+               destination_file)
+
+
+def _LoadCertificatesStore(
+    source_file: Path) -> Tuple[str, List[x509.Certificate]]:
+  pem_bytes = source_file.read_bytes()
+
+  certificates = [
+      x509.Certificate.load(der)
+      for type, _, der in pem.unarmor(pem_bytes, True) if type == 'CERTIFICATE'
+  ]
+  digest = f'sha256:{sha256(pem_bytes).hexdigest()}'
+  logging.debug('Loaded %d certificates from %s [%s] ', len(certificates),
+                source_file, digest)
+  return digest, certificates
+
+
+def _GenerateCHeader(header_file: Path, source: str, source_digest: str,
+                     certificates: List[x509.Certificate], full_cert: bool):
+  header_file.parent.mkdir(parents=True, exist_ok=True)
+  with header_file.open('w') as output:
+    output.write(_CreateOutputHeader(source, source_digest))
+
+    named_certificates = [(cert,
+                           f'kCertificateWithFingerprint_{cert.sha256.hex()}')
+                          for cert in certificates]
+
+    names = list(map(lambda x: x[1], named_certificates))
+    unique_names = list(set(names))
+    if len(names) != len(unique_names):
+      raise RuntimeError(
+          f'There are {len(names) - len(unique_names)} non-unique '
+          'certificate names generated. Generator script must be '
+          'fixed to handle collision.')
+
+    for cert, name in named_certificates:
+
+      output.write(_CreateCertificateMetadataHeader(cert))
+
+      if full_cert:
+        output.write(
+            _CArrayConstantDefinition('unsigned char',
+                                      f'{name}_subject_name',
+                                      _CreateHexList(cert.subject.dump()),
+                                      max_items_per_line=16))
+        output.write('\n')
+        output.write(
+            _CArrayConstantDefinition('unsigned char',
+                                      f'{name}_public_key',
+                                      _CreateHexList(cert.public_key.dump()),
+                                      max_items_per_line=16))
+        output.write('\n')
+
+      output.write(
+          _CArrayConstantDefinition('unsigned char',
+                                    f'{name}_certificate',
+                                    _CreateHexList(cert.dump()),
+                                    max_items_per_line=16))
+      output.write('\n\n')
+
+    if full_cert:
+      output.write(
+          _CArrayConstantDefinition('unsigned char* const',
+                                    'kSSLCertSubjectNameList',
+                                    [f'{name}_subject_name' for name in names]))
+      output.write('\n\n')
+
+      output.write(
+          _CArrayConstantDefinition('unsigned char* const',
+                                    'kSSLCertPublicKeyList',
+                                    [f'{name}_public_key' for name in names]))
+      output.write('\n\n')
+
+    output.write(
+        _CArrayConstantDefinition('unsigned char* const',
+                                  'kSSLCertCertificateList',
+                                  [f'{name}_certificate' for name in names]))
+    output.write('\n\n')
+
+    output.write(
+        _CArrayConstantDefinition(
+            'size_t', 'kSSLCertCertificateSizeList',
+            [f'{len(cert.dump())}' for cert, _ in named_certificates]))
+    output.write('\n\n')
+
+    output.write(_CreateOutputFooter())
+
+
+def _CreateHexList(items: ByteString) -> List[str]:
+  """
+  Produces list of strings each item is hex literal of byte of source sequence
+  """
+  return [f'0x{item:02X}' for item in items]
+
+
+def _CArrayConstantDefinition(type_name: str,
+                              array_name: str,
+                              items: List[Any],
+                              max_items_per_line: int = 1) -> str:
+  """
+  Produces C array definition like: `const type_name array_name = { items };`
+  """
+  return (f'const {type_name} {array_name}[{len(items)}]='
+          f'{_CArrayInitializerList(items, max_items_per_line)};')
+
+
+def _CArrayInitializerList(items: List[Any],
+                           max_items_per_line: int = 1) -> str:
+  """
+  Produces C initializer list like: `{\\nitems[0], \\n ...}`
+  """
+  return '{\n' + '\n'.join([
+      ','.join(items[i:i + max_items_per_line]) + ','
+      for i in range(0, len(items), max_items_per_line)
+  ]) + '\n}'
+
+
+def _CreateCertificateMetadataHeader(cert: x509.Certificate) -> str:
+  return (f'/* subject: {cert.subject.human_friendly} */\n'
+          f'/* issuer: {cert.issuer.human_friendly} */\n'
+          f'/* link: https://crt.sh/?q={cert.sha256.hex()} */\n')
+
+
+def _CreateOutputHeader(source_path_or_url: str, source_digest: str) -> str:
+  now_utc = datetime.now(timezone.utc).replace(microsecond=0)
+  output = (
+      '/*\n'
+      f' *  Copyright {now_utc.year} The WebRTC Project Authors. All rights '
+      'reserved.\n'
+      ' *\n'
+      ' *  Use of this source code is governed by a BSD-style license\n'
+      ' *  that can be found in the LICENSE file in the root of the '
+      'source\n'
+      ' *  tree. An additional intellectual property rights grant can be '
+      'found\n'
+      ' *  in the file PATENTS.  All contributing project authors may\n'
+      ' *  be found in the AUTHORS file in the root of the source tree.\n'
+      ' */\n\n'
+      '#ifndef RTC_BASE_SSL_ROOTS_H_\n'
+      '#define RTC_BASE_SSL_ROOTS_H_\n\n'
+      '// This file is the root certificates in C form.\n\n'
+      f'// It was generated at {now_utc.isoformat()} by the following script:\n'
+      '// `tools_webrtc/sslroots/generate_sslroots.py '
+      f'{source_path_or_url}`\n\n'
+      '// clang-format off\n'
+      '// Don\'t bother formatting generated code,\n'
+      '// also it would breaks subject/issuer lines.\n\n'
+      f'// Source bundle `{source_path_or_url}` digest is [{source_digest}]\n\n'
+  )
+  return output
+
+
+def _CreateOutputFooter():
+  return '// clang-format on\n\n#endif  // RTC_BASE_SSL_ROOTS_H_\n'
+
+
+if __name__ == '__main__':
+  main()