| // Copyright 2021 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/winhttp/scoped_hinternet.h" |
| |
| #include <versionhelpers.h> |
| #include <windows.h> |
| |
| namespace winhttp { |
| |
| ScopedHInternet CreateSessionHandle(const wchar_t* user_agent, |
| int proxy_access_type) { |
| ScopedHInternet session_handle( |
| ::WinHttpOpen(user_agent, proxy_access_type, WINHTTP_NO_PROXY_NAME, |
| WINHTTP_NO_PROXY_BYPASS, WINHTTP_FLAG_ASYNC)); |
| |
| // Allow TLS1.2 on Windows 7 and Windows 8. See KB3140245. TLS 1.2 is enabled |
| // by default on Windows 8.1 and Windows 10. |
| if (session_handle.is_valid() && ::IsWindows7OrGreater() && |
| !::IsWindows8Point1OrGreater()) { |
| DWORD protocols = WINHTTP_FLAG_SECURE_PROTOCOL_TLS1 | |
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_1 | |
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2; |
| ::WinHttpSetOption(session_handle.get(), WINHTTP_OPTION_SECURE_PROTOCOLS, |
| &protocols, sizeof(protocols)); |
| } |
| return session_handle; |
| } |
| |
| } // namespace winhttp |
