1 /* <lambda>null2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.deviceentry.domain.interactor 18 19 import com.android.systemui.biometrics.data.repository.FacePropertyRepository 20 import com.android.systemui.biometrics.shared.model.SensorStrength 21 import com.android.systemui.dagger.SysUISingleton 22 import javax.inject.Inject 23 import kotlinx.coroutines.flow.Flow 24 import kotlinx.coroutines.flow.StateFlow 25 import kotlinx.coroutines.flow.combine 26 import kotlinx.coroutines.flow.flatMapLatest 27 import kotlinx.coroutines.flow.flowOf 28 import kotlinx.coroutines.flow.map 29 30 /** 31 * Individual biometrics (ie: fingerprint or face) may not be allowed to be used based on the 32 * lockout states of biometrics of the same or higher sensor strength. 33 * 34 * This class coordinates the lockout states of each individual biometric based on the lockout 35 * states of other biometrics. 36 */ 37 @SysUISingleton 38 class DeviceEntryBiometricsAllowedInteractor 39 @Inject 40 constructor( 41 deviceEntryFingerprintAuthInteractor: DeviceEntryFingerprintAuthInteractor, 42 deviceEntryFaceAuthInteractor: DeviceEntryFaceAuthInteractor, 43 biometricSettingsInteractor: DeviceEntryBiometricSettingsInteractor, 44 facePropertyRepository: FacePropertyRepository, 45 ) { 46 /** 47 * Whether face is locked out due to too many failed face attempts. This currently includes 48 * whether face is not allowed based on other biometric lockouts; however does not include if 49 * face isn't allowed due to other strong or primary authentication requirements. 50 */ 51 val isFaceLockedOut: StateFlow<Boolean> = deviceEntryFaceAuthInteractor.isLockedOut 52 53 private val isStrongFaceAuth: Flow<Boolean> = 54 facePropertyRepository.sensorInfo.map { it?.strength == SensorStrength.STRONG } 55 56 private val isStrongFaceAuthLockedOut: Flow<Boolean> = 57 combine(isStrongFaceAuth, isFaceLockedOut) { isStrongFaceAuth, isFaceAuthLockedOut -> 58 isStrongFaceAuth && isFaceAuthLockedOut 59 } 60 61 /** 62 * Whether fingerprint is locked out due to too many failed fingerprint attempts. This does NOT 63 * include whether fingerprint is not allowed based on other biometric lockouts nor if 64 * fingerprint isn't allowed due to other strong or primary authentication requirements. 65 */ 66 val isFingerprintLockedOut: StateFlow<Boolean> = 67 deviceEntryFingerprintAuthInteractor.isLockedOut 68 69 /** 70 * Whether fingerprint authentication is currently allowed for the user. This is true if the 71 * user has fingerprint auth enabled, enrolled, it is not disabled by any security timeouts by 72 * [com.android.systemui.keyguard.shared.model.AuthenticationFlags], not locked out due to too 73 * many incorrect attempts, and other biometrics at a higher or equal strenght are not locking 74 * fingerprint out. 75 */ 76 val isFingerprintAuthCurrentlyAllowed: Flow<Boolean> = 77 combine( 78 isFingerprintLockedOut, 79 biometricSettingsInteractor.fingerprintAuthCurrentlyAllowed, 80 isStrongFaceAuthLockedOut, 81 ) { fpLockedOut, fpAllowedBySettings, strongAuthFaceAuthLockedOut -> 82 !fpLockedOut && fpAllowedBySettings && !strongAuthFaceAuthLockedOut 83 } 84 85 /** Whether fingerprint authentication is currently allowed while on the bouncer. */ 86 val isFingerprintCurrentlyAllowedOnBouncer = 87 deviceEntryFingerprintAuthInteractor.isSensorUnderDisplay.flatMapLatest { sensorBelowDisplay 88 -> 89 if (sensorBelowDisplay) { 90 flowOf(false) 91 } else { 92 isFingerprintAuthCurrentlyAllowed 93 } 94 } 95 } 96