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// Copyright 2024 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/ash/auth/active_session_fingerprint_client_impl.h"
#include <memory>
#include "ash/constants/ash_pref_names.h"
#include "ash/public/cpp/ash_public_export.h"
#include "ash/public/cpp/auth/active_session_auth_controller.h"
#include "ash/public/cpp/auth/active_session_fingerprint_client.h"
#include "ash/public/cpp/login_types.h"
#include "ash/shell.h"
#include "base/check.h"
#include "base/check_is_test.h"
#include "base/check_op.h"
#include "base/containers/contains.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/notreached.h"
#include "base/values.h"
#include "chrome/browser/ash/login/quick_unlock/quick_unlock_utils.h"
#include "chrome/browser/ash/profiles/profile_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chromeos/ash/components/dbus/cryptohome/UserDataAuth.pb.h"
#include "chromeos/ash/components/dbus/userdataauth/userdataauth_client.h"
#include "chromeos/ash/components/login/auth/public/auth_callbacks.h"
#include "chromeos/ash/components/login/auth/public/user_context.h"
#include "chromeos/ash/components/osauth/public/request/auth_request.h"
#include "components/account_id/account_id.h"
#include "components/password_manager/core/common/password_manager_pref_names.h"
#include "components/prefs/pref_service.h"
namespace ash {
namespace {
const char kFactorsOptionAll[] = "all";
const char kFactorsOptionFingerprint[] = "FINGERPRINT";
} // namespace
ActiveSessionFingerprintClientImpl::ActiveSessionFingerprintClientImpl()
: auth_performer_(UserDataAuthClient::Get()) {
if (Shell::HasInstance()) {
Shell::Get()->active_session_auth_controller()->SetFingerprintClient(this);
shell_observation_.Observe(ash::Shell::Get());
} else {
CHECK_IS_TEST();
}
}
ActiveSessionFingerprintClientImpl::~ActiveSessionFingerprintClientImpl() {
if (Shell::HasInstance()) {
Shell::Get()->active_session_auth_controller()->SetFingerprintClient(
nullptr);
}
}
void ActiveSessionFingerprintClientImpl::OnShellDestroying() {
Shell::Get()->active_session_auth_controller()->SetFingerprintClient(nullptr);
shell_observation_.Reset();
}
bool ActiveSessionFingerprintClientImpl::IsFingerprintAvailable(
AuthRequest::Reason reason,
const AccountId& account_id) {
auto* profile = ProfileHelper::Get()->GetProfileByAccountId(account_id);
CHECK(profile);
auto* pref_service = profile->GetPrefs();
if (!pref_service) {
return false;
}
if (profile != ProfileManager::GetPrimaryUserProfile()) {
return false;
}
bool has_record =
pref_service->GetInteger(prefs::kQuickUnlockFingerprintRecord);
if (!has_record) {
return false;
}
switch (reason) {
case AuthRequest::Reason::kSettings:
return false;
case AuthRequest::Reason::kPasswordManager: {
if (pref_service->GetBoolean(
password_manager::prefs::kBiometricAuthenticationBeforeFilling)) {
const base::Value::List& factors =
pref_service->GetList(prefs::kQuickUnlockModeAllowlist);
if (base::Contains(factors, base::Value(kFactorsOptionAll)) ||
base::Contains(factors, base::Value(kFactorsOptionFingerprint))) {
return true;
}
}
return false;
}
case AuthRequest::Reason::kWebAuthN: {
const base::Value::List& factors =
pref_service->GetList(prefs::kWebAuthnFactors);
if (base::Contains(factors, base::Value(kFactorsOptionAll)) ||
base::Contains(factors, base::Value(kFactorsOptionFingerprint))) {
return true;
}
return false;
}
}
NOTREACHED();
}
void ActiveSessionFingerprintClientImpl::PrepareFingerprintAuth(
std::unique_ptr<UserContext> user_context,
AuthOperationCallback auth_ready_callback,
ActiveSessionFingerprintScanCallback on_scan_callback) {
CHECK(on_scan_callback_.is_null());
CHECK(!on_scan_callback.is_null());
on_scan_callback_ = std::move(on_scan_callback);
auth_performer_.PrepareAuthFactor(
std::move(user_context), cryptohome::AuthFactorType::kLegacyFingerprint,
base::BindOnce(
&ActiveSessionFingerprintClientImpl::OnPrepareFingerprintAuth,
weak_factory_.GetWeakPtr(), std::move(auth_ready_callback)));
}
void ActiveSessionFingerprintClientImpl::OnPrepareFingerprintAuth(
AuthOperationCallback auth_ready_callback,
std::unique_ptr<UserContext> user_context,
std::optional<AuthenticationError> auth_error) {
if (auth_error.has_value()) {
LOG(ERROR) << "PrepareFingerprintAuth failed.";
on_scan_callback_.Reset();
}
UserDataAuthClient::Get()->AddFingerprintAuthObserver(this);
std::move(auth_ready_callback).Run(std::move(user_context), auth_error);
}
void ActiveSessionFingerprintClientImpl::TerminateFingerprintAuth(
std::unique_ptr<UserContext> user_context,
AuthOperationCallback callback) {
UserDataAuthClient::Get()->RemoveFingerprintAuthObserver(this);
on_scan_callback_.Reset();
auth_performer_.TerminateAuthFactor(
std::move(user_context), cryptohome::AuthFactorType::kLegacyFingerprint,
std::move(callback));
}
void ActiveSessionFingerprintClientImpl::OnFingerprintScan(
const ::user_data_auth::FingerprintScanResult& result) {
if (on_scan_callback_.is_null()) {
return;
}
FingerprintAuthScanResult state;
switch (result) {
case ::user_data_auth::FingerprintScanResult::
FINGERPRINT_SCAN_RESULT_SUCCESS:
state = ash::FingerprintAuthScanResult::kSuccess;
break;
case ::user_data_auth::FingerprintScanResult::FINGERPRINT_SCAN_RESULT_RETRY:
state = ash::FingerprintAuthScanResult::kFailed;
break;
case ::user_data_auth::FingerprintScanResult::
FINGERPRINT_SCAN_RESULT_LOCKOUT:
state = ash::FingerprintAuthScanResult::kTooManyAttempts;
break;
case ::user_data_auth::FingerprintScanResult::
FINGERPRINT_SCAN_RESULT_FATAL_ERROR:
state = ash::FingerprintAuthScanResult::kFatalError;
break;
default: // The remaining states are for enrollment.
NOTREACHED();
}
on_scan_callback_.Run(state);
}
void ActiveSessionFingerprintClientImpl::OnEnrollScanDone(
const ::user_data_auth::FingerprintScanResult& result,
bool is_complete,
int percent_complete) {
CHECK(on_scan_callback_.is_null());
}
} // namespace ash
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