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// Copyright 2023 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/chromeos/device_authenticator_chromeos.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 "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "components/password_manager/core/common/password_manager_pref_names.h"
#include "components/prefs/pref_service.h"
DeviceAuthenticatorChromeOS::DeviceAuthenticatorChromeOS(
std::unique_ptr<AuthenticatorChromeOSInterface> authenticator,
DeviceAuthenticatorProxy* proxy,
const device_reauth::DeviceAuthParams& params)
: DeviceAuthenticatorCommon(proxy,
params.GetAuthenticationValidityPeriod(),
params.GetAuthResultHistogram()),
authenticator_(std::move(authenticator)) {}
DeviceAuthenticatorChromeOS::~DeviceAuthenticatorChromeOS() = default;
bool DeviceAuthenticatorChromeOS::CanAuthenticateWithBiometrics() {
BiometricsStatusChromeOS status =
authenticator_->CheckIfBiometricsAvailable();
bool is_available = status == BiometricsStatusChromeOS::kAvailable;
CHECK(g_browser_process);
CHECK(g_browser_process->local_state());
if (is_available) {
// If biometrics is available, we should record that at one point in time
// biometrics was available on this device. This will never be set to false
// after setting to true here as we only record this when biometrics is
// available.
g_browser_process->local_state()->SetBoolean(
password_manager::prefs::kHadBiometricsAvailable, /*value=*/true);
}
base::UmaHistogramEnumeration("PasswordManager.BiometricAvailabilityChromeOS",
status);
return is_available;
}
bool DeviceAuthenticatorChromeOS::CanAuthenticateWithBiometricOrScreenLock() {
// We check if we can authenticate strictly with biometrics first as this
// function has important side effects such as logging metrics related to how
// often users have biometrics available, and setting a pref that denotes that
// at one point biometrics was available on this device.
return CanAuthenticateWithBiometrics();
}
void DeviceAuthenticatorChromeOS::AuthenticateWithMessage(
const std::u16string& message,
AuthenticateCallback callback) {
if (!NeedsToAuthenticate()) {
RecordAuthResultSkipped();
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), /*success=*/true));
return;
}
callback_ = std::move(callback);
authenticator_->AuthenticateUser(
message,
base::BindOnce(&DeviceAuthenticatorChromeOS::OnAuthenticationCompleted,
weak_ptr_factory_.GetWeakPtr()));
}
void DeviceAuthenticatorChromeOS::Cancel() {
// TODO(b/292097975): Cancel the in session auth dialog.
if (callback_) {
std::move(callback_).Run(false);
}
}
void DeviceAuthenticatorChromeOS::OnAuthenticationCompleted(bool success) {
if (!callback_) {
return;
}
RecordAuthenticationTimeIfSuccessful(success);
std::move(callback_).Run(success);
}
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