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Kevin Chyn87bb7722020-09-09 13:28:28 -07001/*
2 * Copyright (C) 2020 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
17package com.android.settings.biometrics;
18
Kevin Chyn87bb7722020-09-09 13:28:28 -070019import android.app.PendingIntent;
20import android.content.Intent;
21import android.hardware.face.FaceManager;
22import android.hardware.fingerprint.FingerprintManager;
Kevin Chyn87bb7722020-09-09 13:28:28 -070023
24import androidx.annotation.NonNull;
Curtis Belmonte5f1d13e2021-04-16 15:09:03 -070025import androidx.fragment.app.FragmentActivity;
Kevin Chyn87bb7722020-09-09 13:28:28 -070026
Diya Bera1021b582023-01-12 18:18:09 +000027import com.android.internal.annotations.VisibleForTesting;
Kevin Chyn87bb7722020-09-09 13:28:28 -070028import com.android.settings.password.ChooseLockSettingsHelper;
29
Diya Bera1021b582023-01-12 18:18:09 +000030import java.util.function.Function;
31
Kevin Chyn87bb7722020-09-09 13:28:28 -070032/**
33 * Helper for {@link BiometricEnrollActivity} when multiple sensors exist on a device.
34 */
35public class MultiBiometricEnrollHelper {
36
37 private static final String TAG = "MultiBiometricEnrollHelper";
38
39 private static final int REQUEST_FACE_ENROLL = 3000;
40 private static final int REQUEST_FINGERPRINT_ENROLL = 3001;
41
42 public static final String EXTRA_ENROLL_AFTER_FACE = "enroll_after_face";
Joshua McCloskey1dd4f542022-04-18 19:16:10 +000043 public static final String EXTRA_ENROLL_AFTER_FINGERPRINT = "enroll_after_finger";
Curtis Belmonteb61478c2021-07-15 16:04:47 -070044 public static final String EXTRA_SKIP_PENDING_ENROLL = "skip_pending_enroll";
Kevin Chyn87bb7722020-09-09 13:28:28 -070045
Curtis Belmonte5f1d13e2021-04-16 15:09:03 -070046 @NonNull private final FragmentActivity mActivity;
Kevin Chyn87bb7722020-09-09 13:28:28 -070047 private final long mGkPwHandle;
48 private final int mUserId;
49 private final boolean mRequestEnrollFace;
50 private final boolean mRequestEnrollFingerprint;
Diya Bera1021b582023-01-12 18:18:09 +000051 private final FingerprintManager mFingerprintManager;
52 private final FaceManager mFaceManager;
53 private final Intent mFingerprintEnrollIntroductionIntent;
54 private final Intent mFaceEnrollIntroductionIntent;
55 private Function<Long, byte[]> mGatekeeperHatSupplier;
Kevin Chyn87bb7722020-09-09 13:28:28 -070056
Diya Bera1021b582023-01-12 18:18:09 +000057 @VisibleForTesting
Curtis Belmonte5f1d13e2021-04-16 15:09:03 -070058 MultiBiometricEnrollHelper(@NonNull FragmentActivity activity, int userId,
Diya Bera1021b582023-01-12 18:18:09 +000059 boolean enrollFace, boolean enrollFingerprint, long gkPwHandle,
60 FingerprintManager fingerprintManager,
61 FaceManager faceManager, Intent fingerprintEnrollIntroductionIntent,
62 Intent faceEnrollIntroductionIntent, Function<Long, byte[]> gatekeeperHatSupplier) {
Kevin Chyn87bb7722020-09-09 13:28:28 -070063 mActivity = activity;
64 mUserId = userId;
65 mGkPwHandle = gkPwHandle;
66 mRequestEnrollFace = enrollFace;
67 mRequestEnrollFingerprint = enrollFingerprint;
Diya Bera1021b582023-01-12 18:18:09 +000068 mFingerprintManager = fingerprintManager;
69 mFaceManager = faceManager;
70 mFingerprintEnrollIntroductionIntent = fingerprintEnrollIntroductionIntent;
71 mFaceEnrollIntroductionIntent = faceEnrollIntroductionIntent;
72 mGatekeeperHatSupplier = gatekeeperHatSupplier;
73 }
74
75 MultiBiometricEnrollHelper(@NonNull FragmentActivity activity, int userId,
76 boolean enrollFace, boolean enrollFingerprint, long gkPwHandle) {
77 this(activity, userId, enrollFace, enrollFingerprint, gkPwHandle,
78 activity.getSystemService(FingerprintManager.class),
79 activity.getSystemService(FaceManager.class),
80 BiometricUtils.getFingerprintIntroIntent(activity, activity.getIntent()),
81 BiometricUtils.getFaceIntroIntent(activity, activity.getIntent()),
82 (challenge) -> BiometricUtils.requestGatekeeperHat(activity, gkPwHandle,
83 userId, challenge));
Kevin Chyn87bb7722020-09-09 13:28:28 -070084 }
85
86 void startNextStep() {
Joshua McCloskey1dd4f542022-04-18 19:16:10 +000087 if (mRequestEnrollFingerprint) {
Kevin Chyn87bb7722020-09-09 13:28:28 -070088 launchFingerprintEnroll();
Joshua McCloskey1dd4f542022-04-18 19:16:10 +000089 } else if (mRequestEnrollFace) {
90 launchFaceEnroll();
Kevin Chyn87bb7722020-09-09 13:28:28 -070091 } else {
92 mActivity.setResult(BiometricEnrollIntroduction.RESULT_SKIP);
93 mActivity.finish();
94 }
95 }
96
97 private void launchFaceEnroll() {
Diya Bera1021b582023-01-12 18:18:09 +000098 mFaceManager.generateChallenge(mUserId, (sensorId, userId, challenge) -> {
99 final byte[] hardwareAuthToken = mGatekeeperHatSupplier.apply(challenge);
100 mFaceEnrollIntroductionIntent.putExtra(
101 BiometricEnrollBase.EXTRA_KEY_SENSOR_ID, sensorId);
102 mFaceEnrollIntroductionIntent.putExtra(
103 BiometricEnrollBase.EXTRA_KEY_CHALLENGE, challenge);
104 BiometricUtils.launchEnrollForResult(mActivity, mFaceEnrollIntroductionIntent,
105 REQUEST_FACE_ENROLL, hardwareAuthToken, mGkPwHandle, mUserId);
Kevin Chyn87bb7722020-09-09 13:28:28 -0700106 });
107 }
108
109 private void launchFingerprintEnroll() {
Diya Bera1021b582023-01-12 18:18:09 +0000110 mFingerprintManager.generateChallenge(mUserId, ((sensorId, userId, challenge) -> {
111 final byte[] hardwareAuthToken = mGatekeeperHatSupplier.apply(challenge);
112 mFingerprintEnrollIntroductionIntent.putExtra(
113 BiometricEnrollBase.EXTRA_KEY_SENSOR_ID, sensorId);
114 mFingerprintEnrollIntroductionIntent.putExtra(
115 BiometricEnrollBase.EXTRA_KEY_CHALLENGE, challenge);
Joshua McCloskey1dd4f542022-04-18 19:16:10 +0000116 if (mRequestEnrollFace) {
117 // Give FingerprintEnroll a pendingIntent pointing to face enrollment, so that it
118 // can be started when user skips or finishes fingerprint enrollment.
119 // FLAG_UPDATE_CURRENT ensures it is launched with the most recent values.
Diya Bera1021b582023-01-12 18:18:09 +0000120 mFaceEnrollIntroductionIntent.putExtra(Intent.EXTRA_USER_ID, mUserId);
121 mFaceEnrollIntroductionIntent.putExtra(
122 ChooseLockSettingsHelper.EXTRA_KEY_GK_PW_HANDLE, mGkPwHandle);
Joshua McCloskey1dd4f542022-04-18 19:16:10 +0000123 final PendingIntent faceAfterFp = PendingIntent.getActivity(mActivity,
Diya Bera1021b582023-01-12 18:18:09 +0000124 0 /* requestCode */, mFaceEnrollIntroductionIntent,
Joshua McCloskey1dd4f542022-04-18 19:16:10 +0000125 PendingIntent.FLAG_IMMUTABLE | PendingIntent.FLAG_UPDATE_CURRENT);
Diya Bera1021b582023-01-12 18:18:09 +0000126 mFingerprintEnrollIntroductionIntent.putExtra(EXTRA_ENROLL_AFTER_FINGERPRINT,
127 faceAfterFp);
Diya Beraa26c2d62022-11-02 17:48:37 +0000128 }
Diya Bera1021b582023-01-12 18:18:09 +0000129 BiometricUtils.launchEnrollForResult(mActivity, mFingerprintEnrollIntroductionIntent,
130 REQUEST_FINGERPRINT_ENROLL, hardwareAuthToken, mGkPwHandle, mUserId);
Kevin Chyn87bb7722020-09-09 13:28:28 -0700131 }));
132 }
Kevin Chyn87bb7722020-09-09 13:28:28 -0700133}