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// Copyright 2022 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/device_reauth/win/device_authenticator_win.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram_functions.h"
#include "base/notreached.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
#include "chrome/browser/browser_process.h"
#include "components/password_manager/core/common/password_manager_pref_names.h"
#include "components/prefs/pref_service.h"
namespace {
void SaveAvailability(BiometricAuthenticationStatusWin availability) {
CHECK(g_browser_process);
CHECK(g_browser_process->local_state());
bool is_available =
availability == BiometricAuthenticationStatusWin::kAvailable;
g_browser_process->local_state()->SetBoolean(
password_manager::prefs::kIsBiometricAvailable, is_available);
if (is_available) {
g_browser_process->local_state()->SetBoolean(
password_manager::prefs::kHadBiometricsAvailable, is_available);
}
base::UmaHistogramEnumeration("PasswordManager.BiometricAvailabilityWin",
availability);
}
} // namespace
DeviceAuthenticatorWin::DeviceAuthenticatorWin(
std::unique_ptr<AuthenticatorWinInterface> authenticator,
DeviceAuthenticatorProxy* proxy,
const device_reauth::DeviceAuthParams& params)
: DeviceAuthenticatorCommon(proxy,
params.GetAuthenticationValidityPeriod(),
params.GetAuthResultHistogram()),
authenticator_(std::move(authenticator)) {}
DeviceAuthenticatorWin::~DeviceAuthenticatorWin() = default;
bool DeviceAuthenticatorWin::CanAuthenticateWithBiometrics() {
// Setting that pref happens once when the ChromeDeviceAuthenticatorFactory
// is created and it is async so it can technically happen that this pref
// doesn't have the latest value when you check it.
return g_browser_process->local_state()->GetBoolean(
password_manager::prefs::kIsBiometricAvailable);
}
bool DeviceAuthenticatorWin::CanAuthenticateWithBiometricOrScreenLock() {
return CanAuthenticateWithBiometrics() ||
authenticator_->CanAuthenticateWithScreenLock();
}
void DeviceAuthenticatorWin::AuthenticateWithMessage(
const std::u16string& message,
AuthenticateCallback callback) {
if (!NeedsToAuthenticate()) {
RecordAuthResultSkipped();
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), /*success=*/true));
return;
}
authenticator_->AuthenticateUser(
message,
base::BindOnce(&DeviceAuthenticatorWin::OnAuthenticationCompleted,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
}
void DeviceAuthenticatorWin::Cancel() {
// TODO(crbug.com/40235610): Add implementation of the Cancel method.
NOTIMPLEMENTED();
}
// static
void DeviceAuthenticatorWin::CacheIfBiometricsAvailable(
AuthenticatorWinInterface* authenticator) {
authenticator->CheckIfBiometricsAvailable(base::BindOnce(&SaveAvailability));
}
void DeviceAuthenticatorWin::OnAuthenticationCompleted(
base::OnceCallback<void(bool)> callback,
bool success) {
RecordAuthenticationTimeIfSuccessful(success);
std::move(callback).Run(success);
}
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