5bb85257e2
* Fix biometrics with low grace period and backgrounding before unlocked. * Trigger permissions alert when enabling Face ID.
91 lines
3.8 KiB
Swift
91 lines
3.8 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Combine
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import SwiftUI
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typealias AppLockSetupSettingsScreenViewModelType = StateStoreViewModel<AppLockSetupSettingsScreenViewState, AppLockSetupSettingsScreenViewAction>
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class AppLockSetupSettingsScreenViewModel: AppLockSetupSettingsScreenViewModelType, AppLockSetupSettingsScreenViewModelProtocol {
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private let appLockService: AppLockServiceProtocol
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private var actionsSubject: PassthroughSubject<AppLockSetupSettingsScreenViewModelAction, Never> = .init()
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var actions: AnyPublisher<AppLockSetupSettingsScreenViewModelAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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init(appLockService: AppLockServiceProtocol) {
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self.appLockService = appLockService
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super.init(initialViewState: AppLockSetupSettingsScreenViewState(isMandatory: appLockService.isMandatory,
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biometryType: appLockService.biometryType,
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bindings: .init(enableBiometrics: appLockService.biometricUnlockEnabled)))
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}
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// MARK: - Public
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override func process(viewAction: AppLockSetupSettingsScreenViewAction) {
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MXLog.info("View model: received view action: \(viewAction)")
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switch viewAction {
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case .changePINCode:
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actionsSubject.send(.changePINCode)
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case .disable:
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showRemovePINAlert()
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case .enableBiometricsChanged:
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Task { await toggleBiometrics() }
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}
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}
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// MARK: - Private
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private func toggleBiometrics() async {
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if state.bindings.enableBiometrics {
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guard case .success = appLockService.enableBiometricUnlock() else {
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MXLog.error("Enabling biometric unlock failed.")
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state.bindings.enableBiometrics = false
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return
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}
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MXLog.info("Biometric unlock enabled.")
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// Attempt unlock to trigger Face ID permissions alert.
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if appLockService.biometryType == .faceID,
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await !appLockService.unlockWithBiometrics() {
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MXLog.info("Confirmation failed. Disabling biometric unlock.")
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state.bindings.enableBiometrics = false
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appLockService.disableBiometricUnlock()
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}
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} else {
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appLockService.disableBiometricUnlock()
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MXLog.info("Biometric unlock disabled.")
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}
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}
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/// Shows a confirmation alert to the user before removing their PIN code.
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private func showRemovePINAlert() {
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state.bindings.alertInfo = .init(id: .confirmRemovePINCode,
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title: L10n.screenAppLockSettingsRemovePinAlertTitle,
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message: L10n.screenAppLockSettingsRemovePinAlertMessage,
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primaryButton: .init(title: L10n.actionYes) { self.completeRemovePIN() },
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secondaryButton: .init(title: L10n.actionCancel, role: .cancel, action: nil))
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}
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/// Removes the user's PIN code, disabling the App Lock feature.
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private func completeRemovePIN() {
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appLockService.disable()
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actionsSubject.send(.appLockDisabled)
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}
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}
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