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// Copyright (c) 2010 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.
//
// See the corresponding header file for description of the functions in this
// file.
#include "chrome/installer/util/install_util.h"
#include <shellapi.h>
#include <shlobj.h>
#include <algorithm>
#include "base/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/scoped_ptr.h"
#include "base/string_util.h"
#include "base/values.h"
#include "base/win/registry.h"
#include "base/win/windows_version.h"
#include "chrome/common/json_value_serializer.h"
#include "chrome/installer/util/browser_distribution.h"
#include "chrome/installer/util/google_update_constants.h"
#include "chrome/installer/util/l10n_string_util.h"
#include "chrome/installer/util/master_preferences_constants.h"
#include "chrome/installer/util/util_constants.h"
#include "chrome/installer/util/work_item_list.h"
using base::win::RegKey;
using installer_util::MasterPreferences;
bool InstallUtil::ExecuteExeAsAdmin(const CommandLine& cmd, DWORD* exit_code) {
FilePath::StringType program(cmd.GetProgram().value());
DCHECK(!program.empty());
DCHECK(program[0] != '\"');
CommandLine::StringType params(cmd.command_line_string());
if (params[0] == '"') {
DCHECK_EQ('"', params[program.length() + 1]);
DCHECK_EQ(program, params.substr(1, program.length()));
params = params.substr(program.length() + 2);
} else {
DCHECK_EQ(program, params.substr(0, program.length()));
params = params.substr(program.length());
}
TrimWhitespace(params, TRIM_ALL, ¶ms);
SHELLEXECUTEINFO info = {0};
info.cbSize = sizeof(SHELLEXECUTEINFO);
info.fMask = SEE_MASK_NOCLOSEPROCESS;
info.lpVerb = L"runas";
info.lpFile = program.c_str();
info.lpParameters = params.c_str();
info.nShow = SW_SHOW;
if (::ShellExecuteEx(&info) == FALSE)
return false;
::WaitForSingleObject(info.hProcess, INFINITE);
DWORD ret_val = 0;
if (!::GetExitCodeProcess(info.hProcess, &ret_val))
return false;
if (exit_code)
*exit_code = ret_val;
return true;
}
std::wstring InstallUtil::GetChromeUninstallCmd(bool system_install,
BrowserDistribution* dist) {
DCHECK(dist);
HKEY root = system_install ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
RegKey key(root, dist->GetUninstallRegPath().c_str(), KEY_READ);
std::wstring uninstall_cmd;
key.ReadValue(installer_util::kUninstallStringField, &uninstall_cmd);
return uninstall_cmd;
}
installer::Version* InstallUtil::GetChromeVersion(BrowserDistribution* dist,
bool system_install) {
DCHECK(dist);
RegKey key;
std::wstring version_str;
HKEY reg_root = (system_install) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
if (!key.Open(reg_root, dist->GetVersionKey().c_str(), KEY_READ) ||
!key.ReadValue(google_update::kRegVersionField, &version_str)) {
VLOG(1) << "No existing Chrome install found.";
key.Close();
return NULL;
}
key.Close();
VLOG(1) << "Existing Chrome version found " << version_str;
return installer::Version::GetVersionFromString(version_str);
}
bool InstallUtil::IsOSSupported() {
int major, minor;
base::win::Version version = base::win::GetVersion();
base::win::GetServicePackLevel(&major, &minor);
// We do not support Win2K or older, or XP without service pack 2.
VLOG(1) << "Windows Version: " << version
<< ", Service Pack: " << major << "." << minor;
return (version > base::win::VERSION_XP) ||
(version == base::win::VERSION_XP && major >= 2);
}
bool InstallUtil::IsPerUserInstall(const wchar_t* const exe_path) {
wchar_t program_files_path[MAX_PATH] = {0};
if (SUCCEEDED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL,
SHGFP_TYPE_CURRENT, program_files_path))) {
return !StartsWith(exe_path, program_files_path, false);
} else {
NOTREACHED();
}
return true;
}
bool InstallUtil::IsChromeFrameProcess() {
const MasterPreferences& prefs =
installer_util::MasterPreferences::ForCurrentProcess();
return prefs.install_chrome_frame();
}
bool CheckIsChromeSxSProcess() {
CommandLine* command_line = CommandLine::ForCurrentProcess();
CHECK(command_line);
if (command_line->HasSwitch(installer_util::switches::kChromeSxS))
return true;
// Also return true if we are running from Chrome SxS installed path.
FilePath exe_dir;
PathService::Get(base::DIR_EXE, &exe_dir);
std::wstring chrome_sxs_dir(installer_util::kGoogleChromeInstallSubDir2);
chrome_sxs_dir.append(installer_util::kSxSSuffix);
return FilePath::CompareEqualIgnoreCase(exe_dir.BaseName().value(),
installer_util::kInstallBinaryDir) &&
FilePath::CompareEqualIgnoreCase(exe_dir.DirName().BaseName().value(),
chrome_sxs_dir);
}
bool InstallUtil::IsChromeSxSProcess() {
static bool sxs = CheckIsChromeSxSProcess();
return sxs;
}
bool InstallUtil::BuildDLLRegistrationList(const std::wstring& install_path,
const wchar_t** const dll_names,
int dll_names_count,
bool do_register,
bool user_level_registration,
WorkItemList* registration_list) {
DCHECK(NULL != registration_list);
bool success = true;
for (int i = 0; i < dll_names_count; i++) {
std::wstring dll_file_path(install_path);
file_util::AppendToPath(&dll_file_path, dll_names[i]);
success = registration_list->AddSelfRegWorkItem(dll_file_path,
do_register, user_level_registration) && success;
}
return (dll_names_count > 0) && success;
}
// This method tries to delete a registry key and logs an error message
// in case of failure. It returns true if deletion is successful,
// otherwise false.
bool InstallUtil::DeleteRegistryKey(RegKey& root_key,
const std::wstring& key_path) {
VLOG(1) << "Deleting registry key " << key_path;
if (!root_key.DeleteKey(key_path.c_str()) &&
::GetLastError() != ERROR_FILE_NOT_FOUND) {
PLOG(ERROR) << "Failed to delete registry key: " << key_path;
return false;
}
return true;
}
// This method tries to delete a registry value and logs an error message
// in case of failure. It returns true if deletion is successful,
// otherwise false.
bool InstallUtil::DeleteRegistryValue(HKEY reg_root,
const std::wstring& key_path,
const std::wstring& value_name) {
RegKey key(reg_root, key_path.c_str(), KEY_ALL_ACCESS);
VLOG(1) << "Deleting registry value " << value_name;
if (key.ValueExists(value_name.c_str()) &&
!key.DeleteValue(value_name.c_str())) {
LOG(ERROR) << "Failed to delete registry value: " << value_name;
return false;
}
return true;
}
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