| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "win32/base/omaha_util.h" |
| |
| // Omaha is the code name of Google Update, which is not used in |
| // OSS version of Mozc. |
| #if !defined(GOOGLE_JAPANESE_INPUT_BUILD) |
| #error OmahaUtil must be used with Google Japanese Input, not OSS Mozc |
| #endif // !GOOGLE_JAPANESE_INPUT_BUILD |
| |
| #include <windows.h> |
| |
| #define _ATL_NO_AUTOMATIC_NAMESPACE |
| #define _WTL_NO_AUTOMATIC_NAMESPACE |
| #define _ATL_NO_HOSTING |
| #include <atlbase.h> |
| |
| #include <string> |
| |
| #include "base/system_util.h" |
| |
| namespace mozc { |
| namespace win32 { |
| namespace { |
| using ATL::CRegKey; |
| |
| const wchar_t kClientStateKey[] = L"Software\\Google\\Update\\ClientState\\" |
| L"{DDCCD2A9-025E-4142-BCEB-F467B88CF830}"; |
| const wchar_t kChannelKeyName[] = L"ap"; |
| |
| LONG OpenClientStateKey(CRegKey *key, REGSAM base_sam) { |
| const REGSAM sam_desired = base_sam | |
| (SystemUtil::IsWindowsX64() ? KEY_WOW64_32KEY : 0); |
| return key->Create(HKEY_LOCAL_MACHINE, kClientStateKey, |
| REG_NONE, REG_OPTION_NON_VOLATILE, |
| sam_desired); |
| } |
| } // anonymous namespace |
| |
| // Writes a REG_SZ channel name into "ap" in Mozc's client state key. |
| bool OmahaUtil::WriteChannel(const wstring &value) { |
| CRegKey key; |
| LONG result = OpenClientStateKey(&key, KEY_READ | KEY_WRITE); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| result = key.SetStringValue(kChannelKeyName, value.c_str()); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| return true; |
| } |
| |
| // Reads a REG_SZ channel name from "ap" in Mozc's client state key. |
| wstring OmahaUtil::ReadChannel() { |
| CRegKey key; |
| LONG result = OpenClientStateKey(&key, KEY_READ); |
| if (ERROR_SUCCESS != result) { |
| return L""; |
| } |
| wchar_t buf[512]; |
| ULONG buf_size = arraysize(buf); |
| result = key.QueryStringValue(kChannelKeyName, buf, &buf_size); |
| if (ERROR_SUCCESS != result) { |
| return L""; |
| } |
| return wstring(buf); |
| } |
| |
| bool OmahaUtil::ClearOmahaError() { |
| CRegKey key; |
| LONG result = OpenClientStateKey(&key, KEY_READ | KEY_WRITE); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| result = key.SetDWORDValue(L"InstallerResult", 0); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| result = key.SetStringValue(L"InstallerResultUIString", L""); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool OmahaUtil::WriteOmahaError(const wstring &ui_message, |
| const wstring &header) { |
| CRegKey key; |
| LONG result = OpenClientStateKey(&key, KEY_READ | KEY_WRITE); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| result = key.SetDWORDValue(L"InstallerResult", 1); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| |
| // Leaves Mozc version in addition to UI message for customer support. |
| const wstring &message = header.length() > 0 ? header + L"\r\n" + ui_message |
| : ui_message; |
| |
| // This message will be displayed by Omaha meta installer in the error |
| // dialog. |
| result = key.SetStringValue(L"InstallerResultUIString", message.c_str()); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool OmahaUtil::ClearChannel() { |
| CRegKey key; |
| LONG result = OpenClientStateKey(&key, KEY_READ | KEY_WRITE); |
| if (ERROR_SUCCESS != result) { |
| // The parent key is already deleted. It's OK. |
| return true; |
| } |
| if (ReadChannel().empty()) { |
| // The value does not exist. It's OK. |
| return true; |
| } |
| result = key.DeleteValue(kChannelKeyName); |
| if (ERROR_SUCCESS != result) { |
| return false; |
| } |
| return true; |
| } |
| } // namespace win32 |
| } // namespace mozc |