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// Copyright (c) 2012 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/browser/first_run/first_run_internal.h"
#include <windows.h>
#include <shellapi.h>
#include <stdint.h>
#include "base/base_paths.h"
#include "base/callback.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/process/kill.h"
#include "base/process/launch.h"
#include "base/process/process.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/time/time.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/grit/locale_settings.h"
#include "chrome/installer/util/google_update_settings.h"
#include "chrome/installer/util/install_util.h"
#include "chrome/installer/util/master_preferences.h"
#include "chrome/installer/util/master_preferences_constants.h"
#include "chrome/installer/util/util_constants.h"
#include "content/public/browser/browser_thread.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/win/shell.h"
namespace {
// Launches the setup exe with the given parameter/value on the command-line.
// For non-metro Windows, it waits for its termination, returns its exit code
// in |*ret_code|, and returns true if the exit code is valid.
// For metro Windows, it launches setup via ShellExecuteEx and returns in order
// to bounce the user back to the desktop, then returns immediately.
bool LaunchSetupForEula(const base::FilePath::StringType& value,
int* ret_code) {
base::FilePath exe_dir;
if (!PathService::Get(base::DIR_MODULE, &exe_dir))
return false;
exe_dir = exe_dir.Append(installer::kInstallerDir);
base::FilePath exe_path = exe_dir.Append(installer::kSetupExe);
base::CommandLine cl(base::CommandLine::NO_PROGRAM);
cl.AppendSwitchNative(installer::switches::kShowEula, value);
base::CommandLine setup_path(exe_path);
setup_path.AppendArguments(cl, false);
base::Process process =
base::LaunchProcess(setup_path, base::LaunchOptions());
int exit_code = 0;
if (!process.IsValid() || !process.WaitForExit(&exit_code))
return false;
*ret_code = exit_code;
return true;
}
// Returns true if the EULA is required but has not been accepted by this user.
// The EULA is considered having been accepted if the user has gotten past
// first run in the "other" environment (desktop or metro).
bool IsEULANotAccepted(installer::MasterPreferences* install_prefs) {
bool value = false;
if (install_prefs->GetBool(installer::master_preferences::kRequireEula,
&value) && value) {
base::FilePath eula_sentinel;
// Be conservative and show the EULA if the path to the sentinel can't be
// determined.
if (!InstallUtil::GetEULASentinelFilePath(&eula_sentinel) ||
!base::PathExists(eula_sentinel)) {
return true;
}
}
return false;
}
// Writes the EULA to a temporary file, returned in |*eula_path|, and returns
// true if successful.
bool WriteEULAtoTempFile(base::FilePath* eula_path) {
std::string terms = l10n_util::GetStringUTF8(IDS_TERMS_HTML);
return (!terms.empty() &&
base::CreateTemporaryFile(eula_path) &&
base::WriteFile(*eula_path, terms.data(), terms.size()) != -1);
}
// Creates the sentinel indicating that the EULA was required and has been
// accepted.
bool CreateEULASentinel() {
base::FilePath eula_sentinel;
return InstallUtil::GetEULASentinelFilePath(&eula_sentinel) &&
base::CreateDirectory(eula_sentinel.DirName()) &&
base::WriteFile(eula_sentinel, "", 0) != -1;
}
} // namespace
namespace first_run {
namespace internal {
void DoPostImportPlatformSpecificTasks(Profile* /* profile */) {
// Trigger the Active Setup command for system-level Chromes to finish
// configuring this user's install (e.g. per-user shortcuts).
// Delay the task slightly to give Chrome launch I/O priority while also
// making sure shortcuts are created promptly to avoid annoying the user by
// re-creating shortcuts he previously deleted.
static const int64_t kTiggerActiveSetupDelaySeconds = 5;
base::FilePath chrome_exe;
if (!PathService::Get(base::FILE_EXE, &chrome_exe)) {
NOTREACHED();
} else if (!InstallUtil::IsPerUserInstall(chrome_exe)) {
content::BrowserThread::GetBlockingPool()->PostDelayedTask(
FROM_HERE,
base::Bind(&InstallUtil::TriggerActiveSetupCommand),
base::TimeDelta::FromSeconds(kTiggerActiveSetupDelaySeconds));
}
}
bool IsFirstRunSentinelPresent() {
base::FilePath sentinel;
if (!GetFirstRunSentinelFilePath(&sentinel) || base::PathExists(sentinel))
return true;
// Copy any legacy first run sentinel file for Windows user-level installs
// from the application directory to the user data directory.
base::FilePath exe_path;
if (PathService::Get(base::DIR_EXE, &exe_path) &&
InstallUtil::IsPerUserInstall(exe_path)) {
base::FilePath legacy_sentinel = exe_path.Append(chrome::kFirstRunSentinel);
if (base::PathExists(legacy_sentinel)) {
// Copy the file instead of moving it to avoid breaking developer builds
// where the sentinel is dropped beside chrome.exe by a build action.
bool migrated = base::CopyFile(legacy_sentinel, sentinel);
DPCHECK(migrated);
// The sentinel is present regardless of whether or not it was migrated.
return true;
}
}
return false;
}
bool ShowPostInstallEULAIfNeeded(installer::MasterPreferences* install_prefs) {
if (IsEULANotAccepted(install_prefs)) {
// Show the post-installation EULA. This is done by setup.exe and the
// result determines if we continue or not. We wait here until the user
// dismisses the dialog.
// The actual eula text is in a resource in chrome. We extract it to
// a text file so setup.exe can use it as an inner frame.
base::FilePath inner_html;
if (WriteEULAtoTempFile(&inner_html)) {
int retcode = 0;
if (!LaunchSetupForEula(inner_html.value(), &retcode) ||
(retcode != installer::EULA_ACCEPTED &&
retcode != installer::EULA_ACCEPTED_OPT_IN)) {
LOG(WARNING) << "EULA flow requires fast exit.";
return false;
}
CreateEULASentinel();
if (retcode == installer::EULA_ACCEPTED) {
DVLOG(1) << "EULA : no collection";
GoogleUpdateSettings::SetCollectStatsConsent(false);
} else if (retcode == installer::EULA_ACCEPTED_OPT_IN) {
DVLOG(1) << "EULA : collection consent";
GoogleUpdateSettings::SetCollectStatsConsent(true);
}
}
}
return true;
}
base::FilePath MasterPrefsPath() {
// The standard location of the master prefs is next to the chrome binary.
base::FilePath master_prefs;
if (!PathService::Get(base::DIR_EXE, &master_prefs))
return base::FilePath();
return master_prefs.AppendASCII(installer::kDefaultMasterPrefs);
}
} // namespace internal
} // namespace first_run
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