blob: 138006545a52d51b31d03bf3b396bc28ade1bee8 [file] [log] [blame]
// Copyright 2018 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 "chrome/installer/setup/brand_behaviors.h"
#include <windows.h>
#include <shellapi.h>
#include <memory>
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/version.h"
#include "base/win/registry.h"
#include "base/win/windows_version.h"
#include "base/win/wmi.h"
#include "chrome/common/chrome_paths_internal.h"
#include "chrome/install_static/install_util.h"
#include "chrome/installer/setup/uninstall_metrics.h"
#include "chrome/installer/util/google_update_constants.h"
#include "chrome/installer/util/google_update_settings.h"
#include "chrome/installer/util/install_util.h"
#include "third_party/crashpad/crashpad/client/crash_report_database.h"
#include "third_party/crashpad/crashpad/client/settings.h"
#include "third_party/crashpad/crashpad/util/misc/uuid.h"
namespace installer {
namespace {
// Substitutes the locale parameter in |url| with whatever Google Update tells
// us is the locale. In case we fail to find the locale, we use US English.
base::string16 LocalizeUrl(const wchar_t* url) {
base::string16 language;
if (!GoogleUpdateSettings::GetLanguage(&language))
language = L"en-US"; // Default to US English.
return base::ReplaceStringPlaceholders(url, language, nullptr);
base::string16 GetUninstallSurveyUrl() {
static constexpr wchar_t kSurveyUrl[] =
return LocalizeUrl(kSurveyUrl);
bool NavigateToUrlWithEdge(const base::string16& url) {
base::string16 protocol_url = L"microsoft-edge:" + url;
SHELLEXECUTEINFO info = {sizeof(info)};
info.fMask = SEE_MASK_NOASYNC;
info.lpVerb = L"open";
info.lpFile = protocol_url.c_str();
info.nShow = SW_SHOWNORMAL;
if (::ShellExecuteEx(&info))
return true;
PLOG(ERROR) << "Failed to launch Edge for uninstall survey";
return false;
void NavigateToUrlWithIExplore(const base::string16& url) {
base::FilePath iexplore;
if (!base::PathService::Get(base::DIR_PROGRAM_FILES, &iexplore))
iexplore = iexplore.AppendASCII("Internet Explorer");
iexplore = iexplore.AppendASCII("iexplore.exe");
base::string16 command = L"\"" + iexplore.value() + L"\" " + url;
int pid = 0;
// The reason we use WMI to launch the process is because the uninstall
// process runs inside a Job object controlled by the shell. As long as there
// are processes running, the shell will not close the uninstall applet. WMI
// allows us to escape from the Job object so the applet will close.
base::win::WmiLaunchProcess(command, &pid);
} // namespace
// If |archive_type| is INCREMENTAL_ARCHIVE_TYPE and |install_status| does not
// indicate a successful update, "-full" is appended to Chrome's "ap" value in
// its ClientState key if it is not present, resulting in the full installer
// being returned from the next update check. If |archive_type| is
// FULL_ARCHIVE_TYPE or |install_status| indicates a successful update, "-full"
// is removed from the "ap" value. "-multifail" and "-stage:*" values are
// unconditionally removed from the "ap" value.
void UpdateInstallStatus(installer::ArchiveType archive_type,
installer::InstallStatus install_status) {
install_static::IsSystemInstall(), archive_type,
// Returns a string holding the following URL query parameters:
// - brand
// - client
// - ap
// - crash_client_id
base::string16 GetDistributionData() {
base::string16 result;
base::win::RegKey client_state_key(
install_static::IsSystemInstall() ? HKEY_LOCAL_MACHINE
base::string16 brand_value;
if (client_state_key.ReadValue(google_update::kRegRLZBrandField,
&brand_value) == ERROR_SUCCESS) {
base::string16 client_value;
if (client_state_key.ReadValue(google_update::kRegClientField,
&client_value) == ERROR_SUCCESS) {
base::string16 ap_value;
// If we fail to read the ap key, send up "&ap=" anyway to indicate
// that this was probably a stable channel release.
client_state_key.ReadValue(google_update::kRegApField, &ap_value);
// Crash client id.
// While it would be convenient to use the path service to get
// chrome::DIR_CRASH_DUMPS, that points to the dump location for the installer
// rather than for the browser. For per-user installs they are the same, yet
// for system-level installs the installer uses the system temp directory (see
// setup/'s ConfigureCrashReporting).
// TODO(grt): use install_static::GetDefaultCrashDumpLocation (with an option
// to suppress creating the directory) once setup.exe uses
// install_static::InstallDetails.
base::FilePath crash_dir;
if (chrome::GetDefaultUserDataDirectory(&crash_dir)) {
crash_dir = crash_dir.Append(FILE_PATH_LITERAL("Crashpad"));
crashpad::UUID client_id;
std::unique_ptr<crashpad::CrashReportDatabase> database(
if (database && database->GetSettings()->GetClientID(&client_id))
return result;
// Launches Edge or IE to show the uninstall survey. The following URL query
// params are included unconditionally in the survey URL:
// - crversion: the version of Chrome being uninstalled
// - os: Major.Minor.Build of the OS version
// If the user is sending crash reports and usage statistics to Google, the
// uninstall metrics read from |local_data_path| and the query params in
// |distribution_data| are included in the URL.
void DoPostUninstallOperations(const base::Version& version,
const base::FilePath& local_data_path,
const base::string16& distribution_data) {
// Send the Chrome version and OS version as params to the form. It would be
// nice to send the locale, too, but I don't see an easy way to get that in
// the existing code. It's something we can add later, if needed. We depend
// on installed_version.GetString() not having spaces or other characters that
// need escaping: Should that change, we will need to escape the
// string before using it in a URL.
const base::win::OSInfo* os_info = base::win::OSInfo::GetInstance();
base::win::OSInfo::VersionNumber version_number = os_info->version_number();
base::string16 os_version =
base::StringPrintf(L"%d.%d.%d", version_number.major,
const base::string16 survey_url = GetUninstallSurveyUrl();
// The URL is expected to have a query part and not end with '&'.
const size_t pos = survey_url.find(L'?');
DCHECK_NE(pos, base::string16::npos);
DCHECK_EQ(survey_url.find(L'?', pos + 1), base::string16::npos);
DCHECK_NE(survey_url.back(), L'&');
auto url = base::StringPrintf(L"%ls&crversion=%ls&os=%ls", survey_url.c_str(),
base::string16 uninstall_metrics;
if (ExtractUninstallMetricsFromFile(local_data_path, &uninstall_metrics)) {
DCHECK_EQ(uninstall_metrics.front(), L'&');
DCHECK_NE(uninstall_metrics.back(), L'&');
DCHECK_EQ(uninstall_metrics.find(L'?'), base::string16::npos);
// The user has opted into anonymous usage data collection, so append
// metrics and distribution data.
url += uninstall_metrics;
if (!distribution_data.empty()) {
url += L"&";
url += distribution_data;
if (os_info->version() < base::win::VERSION_WIN10 ||
!NavigateToUrlWithEdge(url)) {
} // namespace installer