| // Copyright 2012 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/first_run/upgrade_util_win.h" |
| |
| #include <objbase.h> |
| |
| #include <windows.h> |
| |
| #include <psapi.h> |
| #include <shellapi.h> |
| #include <wrl/client.h> |
| |
| #include <algorithm> |
| #include <ios> |
| #include <string> |
| |
| #include "base/base_paths.h" |
| #include "base/check.h" |
| #include "base/command_line.h" |
| #include "base/files/file_path.h" |
| #include "base/files/file_util.h" |
| #include "base/logging.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/path_service.h" |
| #include "base/process/launch.h" |
| #include "base/process/process_handle.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_util.h" |
| #include "base/time/time.h" |
| #include "base/trace_event/trace_event.h" |
| #include "base/win/registry.h" |
| #include "base/win/windows_version.h" |
| #include "build/branding_buildflags.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/chrome_process_singleton.h" |
| #include "chrome/browser/first_run/upgrade_util.h" |
| #include "chrome/browser/shell_integration.h" |
| #include "chrome/browser/win/browser_util.h" |
| #include "chrome/common/chrome_switches.h" |
| #include "chrome/common/pref_names.h" |
| #include "chrome/install_static/install_util.h" |
| #include "chrome/installer/util/app_command.h" |
| #include "chrome/installer/util/util_constants.h" |
| #include "components/prefs/pref_service.h" |
| #include "ui/base/ui_base_switches.h" |
| |
| #if BUILDFLAG(GOOGLE_CHROME_BRANDING) |
| #include "chrome/updater/app/server/win/updater_legacy_idl.h" |
| #endif |
| |
| namespace { |
| |
| bool GetNewerChromeFile(base::FilePath* path) { |
| if (!base::PathService::Get(base::DIR_EXE, path)) |
| return false; |
| *path = path->Append(installer::kChromeNewExe); |
| return true; |
| } |
| |
| bool InvokeGoogleUpdateForRename() { |
| #if BUILDFLAG(GOOGLE_CHROME_BRANDING) |
| // This has been identified as very slow on some startups. Detailed trace |
| // events below try to shine a light on each steps. crbug.com/1252004 |
| TRACE_EVENT0("startup", "upgrade_util::InvokeGoogleUpdateForRename"); |
| |
| // Chrome queries for the SxS IIDs first, with a fallback to the legacy IID, |
| // to make sure that marshaling loads the proxy/stub from the correct (HKLM) |
| // hive. |
| Microsoft::WRL::ComPtr<IProcessLauncher> ipl; |
| { |
| TRACE_EVENT0("startup", "InvokeGoogleUpdateForRename CoCreateInstance"); |
| Microsoft::WRL::ComPtr<IUnknown> unknown; |
| HRESULT hr = ::CoCreateInstance(__uuidof(ProcessLauncherClass), nullptr, |
| CLSCTX_ALL, IID_PPV_ARGS(&unknown)); |
| if (FAILED(hr)) { |
| TRACE_EVENT0("startup", |
| "InvokeGoogleUpdateForRename CoCreateInstance failed"); |
| LOG(ERROR) << "CoCreate ProcessLauncherClass failed; hr = " << std::hex |
| << hr; |
| return false; |
| } |
| hr = unknown.CopyTo(__uuidof(IProcessLauncherSystem), |
| IID_PPV_ARGS_Helper(&ipl)); |
| if (FAILED(hr)) { |
| hr = unknown.As(&ipl); |
| } |
| if (FAILED(hr)) { |
| TRACE_EVENT0("startup", |
| "InvokeGoogleUpdateForRename QueryInterface failed"); |
| LOG(ERROR) << "QueryInterface failed; hr = " << std::hex << hr; |
| return false; |
| } |
| } |
| |
| ULONG_PTR process_handle = 0; |
| { |
| TRACE_EVENT0("startup", "InvokeGoogleUpdateForRename LaunchCmdElevated"); |
| HRESULT hr = ipl->LaunchCmdElevated( |
| install_static::GetAppGuid(), installer::kCmdRenameChromeExe, |
| ::GetCurrentProcessId(), &process_handle); |
| if (FAILED(hr)) { |
| TRACE_EVENT0("startup", |
| "InvokeGoogleUpdateForRename LaunchCmdElevated failed"); |
| LOG(ERROR) << "IProcessLauncher::LaunchCmdElevated failed; hr = " |
| << std::hex << hr; |
| return false; |
| } |
| } |
| |
| base::Process rename_process( |
| reinterpret_cast<base::ProcessHandle>(process_handle)); |
| int exit_code; |
| { |
| TRACE_EVENT0("startup", "InvokeGoogleUpdateForRename WaitForExit"); |
| if (!rename_process.WaitForExit(&exit_code)) { |
| TRACE_EVENT0("startup", "InvokeGoogleUpdateForRename WaitForExit failed"); |
| PLOG(ERROR) << "WaitForExit of rename process failed"; |
| return false; |
| } |
| } |
| |
| if (exit_code != installer::RENAME_SUCCESSFUL) { |
| TRACE_EVENT0("startup", "InvokeGoogleUpdateForRename !RENAME_SUCCESSFUL"); |
| LOG(ERROR) << "Rename process failed with exit code " << exit_code; |
| return false; |
| } |
| |
| TRACE_EVENT0("startup", "InvokeGoogleUpdateForRename RENAME_SUCCESSFUL"); |
| |
| return true; |
| #else // BUILDFLAG(GOOGLE_CHROME_BRANDING) |
| return false; |
| #endif // BUILDFLAG(GOOGLE_CHROME_BRANDING) |
| } |
| |
| } // namespace |
| |
| namespace upgrade_util { |
| |
| bool RelaunchChromeBrowserImpl(const base::CommandLine& command_line) { |
| TRACE_EVENT0("startup", "upgrade_util::RelaunchChromeBrowserImpl"); |
| |
| base::FilePath chrome_exe; |
| if (!base::PathService::Get(base::FILE_EXE, &chrome_exe)) { |
| NOTREACHED(); |
| return false; |
| } |
| |
| // Explicitly make sure to relaunch chrome.exe rather than old_chrome.exe. |
| // This can happen when old_chrome.exe is launched by a user. |
| base::CommandLine chrome_exe_command_line = command_line; |
| chrome_exe_command_line.SetProgram( |
| chrome_exe.DirName().Append(installer::kChromeExe)); |
| |
| // Set the working directory to the exe's directory. This avoids a handle to |
| // the version directory being kept open in the relaunched child process. |
| base::LaunchOptions launch_options; |
| launch_options.current_directory = chrome_exe.DirName(); |
| // Give the new process the right to bring its windows to the foreground. |
| launch_options.grant_foreground_privilege = true; |
| return base::LaunchProcess(chrome_exe_command_line, launch_options).IsValid(); |
| } |
| |
| bool IsUpdatePendingRestart() { |
| TRACE_EVENT0("startup", "upgrade_util::IsUpdatePendingRestart"); |
| base::FilePath new_chrome_exe; |
| if (!GetNewerChromeFile(&new_chrome_exe)) |
| return false; |
| return base::PathExists(new_chrome_exe); |
| } |
| |
| bool SwapNewChromeExeIfPresent() { |
| if (!IsUpdatePendingRestart()) |
| return false; |
| |
| TRACE_EVENT0("startup", "upgrade_util::SwapNewChromeExeIfPresent"); |
| |
| // Renaming the chrome executable requires the process singleton to avoid |
| // any race condition. |
| CHECK(ChromeProcessSingleton::IsSingletonInstance()); |
| |
| // If this is a system-level install, ask Google Update to launch an elevated |
| // process to rename Chrome executables. |
| if (install_static::IsSystemInstall()) |
| return InvokeGoogleUpdateForRename(); |
| |
| // If this is a user-level install, directly launch a process to rename Chrome |
| // executables. Obtain the command to launch the process from the registry. |
| installer::AppCommand rename_cmd(installer::kCmdRenameChromeExe, {}); |
| if (!rename_cmd.Initialize(HKEY_CURRENT_USER)) |
| return false; |
| |
| base::LaunchOptions options; |
| options.wait = true; |
| options.start_hidden = true; |
| ::SetLastError(ERROR_SUCCESS); |
| base::Process process = |
| base::LaunchProcess(rename_cmd.command_line(), options); |
| if (!process.IsValid()) { |
| PLOG(ERROR) << "Launch rename process failed"; |
| return false; |
| } |
| |
| DWORD exit_code; |
| if (!::GetExitCodeProcess(process.Handle(), &exit_code)) { |
| PLOG(ERROR) << "GetExitCodeProcess of rename process failed"; |
| return false; |
| } |
| |
| if (exit_code != installer::RENAME_SUCCESSFUL) { |
| LOG(ERROR) << "Rename process failed with exit code " << exit_code; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool IsRunningOldChrome() { |
| TRACE_EVENT0("startup", "upgrade_util::IsRunningOldChrome"); |
| // This figures out the actual file name that the section containing the |
| // mapped exe refers to. This is used instead of GetModuleFileName because the |
| // .exe may have been renamed out from under us while we've been running which |
| // GetModuleFileName won't notice. |
| wchar_t mapped_file_name[MAX_PATH * 2] = {}; |
| |
| if (!::GetMappedFileName(::GetCurrentProcess(), |
| reinterpret_cast<void*>(::GetModuleHandle(NULL)), |
| mapped_file_name, std::size(mapped_file_name))) { |
| return false; |
| } |
| |
| base::FilePath file_name(base::FilePath(mapped_file_name).BaseName()); |
| return base::FilePath::CompareEqualIgnoreCase(file_name.value(), |
| installer::kChromeOldExe); |
| } |
| |
| bool DoUpgradeTasks(const base::CommandLine& command_line) { |
| TRACE_EVENT0("startup", "upgrade_util::DoUpgradeTasks"); |
| // If there is no other instance already running then check if there is a |
| // pending update and complete it by performing the swap and then relaunch. |
| |
| // Upgrade tasks require the process singleton to avoid any race condition. |
| CHECK(ChromeProcessSingleton::IsSingletonInstance()); |
| |
| bool did_swap = false; |
| if (!browser_util::IsBrowserAlreadyRunning()) |
| did_swap = SwapNewChromeExeIfPresent(); |
| |
| // We don't need to relaunch if we didn't swap and we aren't running stale |
| // binaries. |
| if (!did_swap && !IsRunningOldChrome()) { |
| return false; |
| } |
| |
| // At this point the chrome.exe has been swapped with the new one. |
| if (!RelaunchChromeBrowser(command_line)) { |
| // The relaunch failed. Feel free to panic now. |
| NOTREACHED(); |
| } |
| return true; |
| } |
| |
| } // namespace upgrade_util |