91d7545826
This prevents biometric enrollment from happening after consent has been obtained and is being managed by family link. Note that this requires a corresponding change the setup wizard app to work in most cases. Bug: 193577587 Test: manual (enroll then relaunch SuW and repeat) Change-Id: If260e49f38a141931d7f3362c1faf80ee7790232
550 lines
24 KiB
Java
550 lines
24 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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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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package com.android.settings.biometrics;
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import static android.provider.Settings.ACTION_BIOMETRIC_ENROLL;
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import static android.provider.Settings.EXTRA_BIOMETRIC_AUTHENTICATORS_ALLOWED;
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import static com.android.settings.biometrics.BiometricEnrollBase.RESULT_CONSENT_DENIED;
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import static com.android.settings.biometrics.BiometricEnrollBase.RESULT_CONSENT_GRANTED;
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import android.annotation.NonNull;
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import android.app.admin.DevicePolicyManager;
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import android.app.settings.SettingsEnums;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.res.Resources;
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import android.hardware.biometrics.BiometricAuthenticator;
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import android.hardware.biometrics.BiometricManager;
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import android.hardware.biometrics.BiometricManager.Authenticators;
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import android.hardware.biometrics.BiometricManager.BiometricError;
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import android.hardware.face.FaceManager;
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import android.hardware.face.FaceSensorPropertiesInternal;
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import android.hardware.fingerprint.FingerprintManager;
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import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
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import android.os.Bundle;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.util.Log;
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import androidx.annotation.Nullable;
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import com.android.internal.util.FrameworkStatsLog;
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import com.android.internal.widget.LockPatternUtils;
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import com.android.settings.R;
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import com.android.settings.SetupWizardUtils;
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import com.android.settings.core.InstrumentedActivity;
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import com.android.settings.password.ChooseLockGeneric;
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import com.android.settings.password.ChooseLockPattern;
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import com.android.settings.password.ChooseLockSettingsHelper;
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import com.google.android.setupcompat.util.WizardManagerHelper;
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import java.util.List;
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/**
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* Trampoline activity launched by the {@code android.settings.BIOMETRIC_ENROLL} action which
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* shows the user an appropriate enrollment flow depending on the device's biometric hardware.
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* This activity must only allow enrollment of biometrics that can be used by
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* {@link android.hardware.biometrics.BiometricPrompt}.
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*/
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public class BiometricEnrollActivity extends InstrumentedActivity {
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private static final String TAG = "BiometricEnrollActivity";
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private static final int REQUEST_CHOOSE_LOCK = 1;
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private static final int REQUEST_CONFIRM_LOCK = 2;
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// prompt for parental consent options
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private static final int REQUEST_CHOOSE_OPTIONS = 3;
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// prompt hand phone back to parent after enrollment
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private static final int REQUEST_HANDOFF_PARENT = 4;
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private static final int REQUEST_SINGLE_ENROLL = 5;
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public static final int RESULT_SKIP = BiometricEnrollBase.RESULT_SKIP;
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// Intent extra. If true, biometric enrollment should skip introductory screens. Currently
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// this only applies to fingerprint.
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public static final String EXTRA_SKIP_INTRO = "skip_intro";
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// Intent extra. If true, parental consent will be requested before user enrollment.
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public static final String EXTRA_REQUIRE_PARENTAL_CONSENT = "require_consent";
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// Intent extra. If true, the screen asking the user to return the device to their parent will
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// be skipped after enrollment.
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public static final String EXTRA_SKIP_RETURN_TO_PARENT = "skip_return_to_parent";
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// If EXTRA_REQUIRE_PARENTAL_CONSENT was used to start the activity then the result
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// intent will include this extra containing a bundle of the form:
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// "modality" -> consented (boolean).
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public static final String EXTRA_PARENTAL_CONSENT_STATUS = "consent_status";
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private static final String SAVED_STATE_CONFIRMING_CREDENTIALS = "confirming_credentials";
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private static final String SAVED_STATE_ENROLL_ACTION_LOGGED = "enroll_action_logged";
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private static final String SAVED_STATE_PARENTAL_OPTIONS = "enroll_preferences";
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private static final String SAVED_STATE_GK_PW_HANDLE = "gk_pw_handle";
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public static final class InternalActivity extends BiometricEnrollActivity {}
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private int mUserId = UserHandle.myUserId();
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private boolean mConfirmingCredentials;
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private boolean mIsEnrollActionLogged;
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private boolean mHasFeatureFace = false;
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private boolean mHasFeatureFingerprint = false;
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private boolean mIsFaceEnrollable = false;
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private boolean mIsFingerprintEnrollable = false;
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private boolean mParentalOptionsRequired = false;
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private boolean mSkipReturnToParent = false;
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private Bundle mParentalOptions;
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@Nullable private Long mGkPwHandle;
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@Nullable private ParentalConsentHelper mParentalConsentHelper;
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@Nullable private MultiBiometricEnrollHelper mMultiBiometricEnrollHelper;
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@Override
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public void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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final Intent intent = getIntent();
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if (this instanceof InternalActivity) {
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mUserId = intent.getIntExtra(Intent.EXTRA_USER_ID, UserHandle.myUserId());
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if (BiometricUtils.containsGatekeeperPasswordHandle(getIntent())) {
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mGkPwHandle = BiometricUtils.getGatekeeperPasswordHandle(getIntent());
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}
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}
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if (savedInstanceState != null) {
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mConfirmingCredentials = savedInstanceState.getBoolean(
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SAVED_STATE_CONFIRMING_CREDENTIALS, false);
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mIsEnrollActionLogged = savedInstanceState.getBoolean(
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SAVED_STATE_ENROLL_ACTION_LOGGED, false);
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mParentalOptions = savedInstanceState.getBundle(SAVED_STATE_PARENTAL_OPTIONS);
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if (savedInstanceState.containsKey(SAVED_STATE_GK_PW_HANDLE)) {
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mGkPwHandle = savedInstanceState.getLong(SAVED_STATE_GK_PW_HANDLE);
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}
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}
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// Log a framework stats event if this activity was launched via intent action.
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if (!mIsEnrollActionLogged && ACTION_BIOMETRIC_ENROLL.equals(intent.getAction())) {
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mIsEnrollActionLogged = true;
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// Get the current status for each authenticator type.
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@BiometricError final int strongBiometricStatus;
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@BiometricError final int weakBiometricStatus;
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@BiometricError final int deviceCredentialStatus;
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final BiometricManager bm = getSystemService(BiometricManager.class);
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if (bm != null) {
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strongBiometricStatus = bm.canAuthenticate(Authenticators.BIOMETRIC_STRONG);
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weakBiometricStatus = bm.canAuthenticate(Authenticators.BIOMETRIC_WEAK);
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deviceCredentialStatus = bm.canAuthenticate(Authenticators.DEVICE_CREDENTIAL);
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} else {
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strongBiometricStatus = BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE;
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weakBiometricStatus = BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE;
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deviceCredentialStatus = BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE;
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}
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FrameworkStatsLog.write(FrameworkStatsLog.AUTH_ENROLL_ACTION_INVOKED,
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strongBiometricStatus == BiometricManager.BIOMETRIC_SUCCESS,
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weakBiometricStatus == BiometricManager.BIOMETRIC_SUCCESS,
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deviceCredentialStatus == BiometricManager.BIOMETRIC_SUCCESS,
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intent.hasExtra(EXTRA_BIOMETRIC_AUTHENTICATORS_ALLOWED),
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intent.getIntExtra(EXTRA_BIOMETRIC_AUTHENTICATORS_ALLOWED, 0));
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}
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// Put the theme in the intent so it gets propagated to other activities in the flow
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if (intent.getStringExtra(WizardManagerHelper.EXTRA_THEME) == null) {
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intent.putExtra(
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WizardManagerHelper.EXTRA_THEME,
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SetupWizardUtils.getThemeString(intent));
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}
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final PackageManager pm = getApplicationContext().getPackageManager();
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mHasFeatureFingerprint = pm.hasSystemFeature(PackageManager.FEATURE_FINGERPRINT);
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mHasFeatureFace = pm.hasSystemFeature(PackageManager.FEATURE_FACE);
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// determine what can be enrolled
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final boolean isSetupWizard = WizardManagerHelper.isAnySetupWizard(getIntent());
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if (mHasFeatureFace) {
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final FaceManager faceManager = getSystemService(FaceManager.class);
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final List<FaceSensorPropertiesInternal> faceProperties =
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faceManager.getSensorPropertiesInternal();
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if (!faceProperties.isEmpty()) {
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final int maxEnrolls =
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isSetupWizard ? 1 : faceProperties.get(0).maxEnrollmentsPerUser;
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mIsFaceEnrollable =
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faceManager.getEnrolledFaces(mUserId).size() < maxEnrolls;
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}
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}
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if (mHasFeatureFingerprint) {
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final FingerprintManager fpManager = getSystemService(FingerprintManager.class);
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final List<FingerprintSensorPropertiesInternal> fpProperties =
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fpManager.getSensorPropertiesInternal();
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if (!fpProperties.isEmpty()) {
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final int maxEnrolls =
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isSetupWizard ? 1 : fpProperties.get(0).maxEnrollmentsPerUser;
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mIsFingerprintEnrollable =
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fpManager.getEnrolledFingerprints(mUserId).size() < maxEnrolls;
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}
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}
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mParentalOptionsRequired = intent.getBooleanExtra(EXTRA_REQUIRE_PARENTAL_CONSENT, false);
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mSkipReturnToParent = intent.getBooleanExtra(EXTRA_SKIP_RETURN_TO_PARENT, false);
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Log.d(TAG, "parentalOptionsRequired: " + mParentalOptionsRequired
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+ ", skipReturnToParent: " + mSkipReturnToParent);
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// Only allow the consent flow to happen once when running from setup wizard.
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// This isn't common and should only happen if setup wizard is not completed normally
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// due to a restart, etc.
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if (isSetupWizard && mParentalOptionsRequired) {
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final boolean consentAlreadyManaged = ParentalControlsUtils.parentConsentRequired(this,
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BiometricAuthenticator.TYPE_FACE | BiometricAuthenticator.TYPE_FINGERPRINT)
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!= null;
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if (consentAlreadyManaged) {
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Log.w(TAG, "Consent was already setup - skipping enrollment");
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setResult(RESULT_SKIP);
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finish();
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return;
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}
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}
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// start enrollment process if we haven't bailed out yet
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if (mParentalOptionsRequired && mParentalOptions == null) {
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mParentalConsentHelper = new ParentalConsentHelper(
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mIsFaceEnrollable, mIsFingerprintEnrollable, mGkPwHandle);
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setOrConfirmCredentialsNow();
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} else {
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startEnroll();
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}
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}
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private void startEnroll() {
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// Default behavior is to enroll BIOMETRIC_WEAK or above. See ACTION_BIOMETRIC_ENROLL.
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final int authenticators = getIntent().getIntExtra(
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EXTRA_BIOMETRIC_AUTHENTICATORS_ALLOWED, Authenticators.BIOMETRIC_WEAK);
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Log.d(TAG, "Authenticators: " + authenticators);
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startEnrollWith(authenticators, WizardManagerHelper.isAnySetupWizard(getIntent()));
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}
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private void startEnrollWith(@Authenticators.Types int authenticators, boolean setupWizard) {
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// If the caller is not setup wizard, and the user has something enrolled, finish.
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if (!setupWizard) {
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final BiometricManager bm = getSystemService(BiometricManager.class);
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final @BiometricError int result = bm.canAuthenticate(authenticators);
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if (result != BiometricManager.BIOMETRIC_ERROR_NONE_ENROLLED) {
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Log.e(TAG, "Unexpected result (has enrollments): " + result);
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finish();
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return;
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}
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}
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boolean canUseFace = mHasFeatureFace;
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boolean canUseFingerprint = mHasFeatureFingerprint;
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if (mParentalOptionsRequired) {
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if (mParentalOptions == null) {
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throw new IllegalStateException("consent options required, but not set");
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}
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canUseFace = canUseFace
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&& ParentalConsentHelper.hasFaceConsent(mParentalOptions);
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canUseFingerprint = canUseFingerprint
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&& ParentalConsentHelper.hasFingerprintConsent(mParentalOptions);
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}
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// This will need to be updated if the device has sensors other than BIOMETRIC_STRONG
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if (!setupWizard && authenticators == BiometricManager.Authenticators.DEVICE_CREDENTIAL) {
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launchCredentialOnlyEnroll();
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finish();
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} else if (canUseFace && canUseFingerprint) {
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if (mParentalOptionsRequired && mGkPwHandle != null) {
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launchFaceAndFingerprintEnroll();
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} else {
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setOrConfirmCredentialsNow();
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}
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} else if (canUseFingerprint) {
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launchFingerprintOnlyEnroll();
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} else if (canUseFace) {
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launchFaceOnlyEnroll();
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} else { // no modalities available
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if (mParentalOptionsRequired) {
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Log.d(TAG, "No consent for any modality: skipping enrollment");
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setResult(RESULT_OK, newResultIntent());
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} else {
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Log.e(TAG, "Unknown state, finishing (was SUW: " + setupWizard + ")");
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}
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finish();
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}
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}
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@Override
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protected void onSaveInstanceState(@NonNull Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putBoolean(SAVED_STATE_CONFIRMING_CREDENTIALS, mConfirmingCredentials);
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outState.putBoolean(SAVED_STATE_ENROLL_ACTION_LOGGED, mIsEnrollActionLogged);
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if (mParentalOptions != null) {
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outState.putBundle(SAVED_STATE_PARENTAL_OPTIONS, mParentalOptions);
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}
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if (mGkPwHandle != null) {
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outState.putLong(SAVED_STATE_GK_PW_HANDLE, mGkPwHandle);
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}
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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// single enrollment is handled entirely by the launched activity
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// this handles multi enroll or if parental consent is required
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if (mParentalConsentHelper != null) {
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handleOnActivityResultWhileConsenting(requestCode, resultCode, data);
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} else {
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handleOnActivityResultWhileEnrolling(requestCode, resultCode, data);
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}
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}
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// handles responses while parental consent is pending
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private void handleOnActivityResultWhileConsenting(
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int requestCode, int resultCode, Intent data) {
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overridePendingTransition(R.anim.sud_slide_next_in, R.anim.sud_slide_next_out);
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switch (requestCode) {
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case REQUEST_CHOOSE_LOCK:
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case REQUEST_CONFIRM_LOCK:
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mConfirmingCredentials = false;
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if (isSuccessfulConfirmOrChooseCredential(requestCode, resultCode)) {
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updateGatekeeperPasswordHandle(data);
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if (!mParentalConsentHelper.launchNext(this, REQUEST_CHOOSE_OPTIONS)) {
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Log.e(TAG, "Nothing to prompt for consent (no modalities enabled)!");
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finish();
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}
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} else {
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Log.d(TAG, "Unknown result for set/choose lock: " + resultCode);
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setResult(resultCode);
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finish();
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}
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break;
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case REQUEST_CHOOSE_OPTIONS:
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if (resultCode == RESULT_CONSENT_GRANTED || resultCode == RESULT_CONSENT_DENIED) {
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final boolean isStillPrompting = mParentalConsentHelper.launchNext(
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this, REQUEST_CHOOSE_OPTIONS, resultCode, data);
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if (!isStillPrompting) {
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Log.d(TAG, "Enrollment consent options set, starting enrollment");
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mParentalOptions = mParentalConsentHelper.getConsentResult();
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mParentalConsentHelper = null;
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startEnroll();
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}
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} else {
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Log.d(TAG, "Unknown or cancelled parental consent");
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setResult(RESULT_CANCELED);
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finish();
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}
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break;
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default:
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Log.w(TAG, "Unknown consenting requestCode: " + requestCode + ", finishing");
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finish();
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}
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}
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// handles responses while multi biometric enrollment is pending
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private void handleOnActivityResultWhileEnrolling(
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int requestCode, int resultCode, Intent data) {
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if (requestCode == REQUEST_HANDOFF_PARENT) {
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Log.d(TAG, "Enrollment complete, requesting handoff, result: " + resultCode);
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setResult(RESULT_OK, newResultIntent());
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finish();
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} else if (mMultiBiometricEnrollHelper == null) {
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overridePendingTransition(R.anim.sud_slide_next_in, R.anim.sud_slide_next_out);
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switch (requestCode) {
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case REQUEST_CHOOSE_LOCK:
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case REQUEST_CONFIRM_LOCK:
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mConfirmingCredentials = false;
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final boolean isOk =
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isSuccessfulConfirmOrChooseCredential(requestCode, resultCode);
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// single modality enrollment requests confirmation directly
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// via BiometricEnrollBase#onCreate and should never get here
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if (isOk && mHasFeatureFace && mHasFeatureFingerprint) {
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updateGatekeeperPasswordHandle(data);
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launchFaceAndFingerprintEnroll();
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} else {
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Log.d(TAG, "Unknown result for set/choose lock: " + resultCode);
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setResult(resultCode);
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finish();
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}
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break;
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case REQUEST_SINGLE_ENROLL:
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finishOrLaunchHandToParent(resultCode);
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break;
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default:
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Log.w(TAG, "Unknown enrolling requestCode: " + requestCode + ", finishing");
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finish();
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}
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} else {
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Log.d(TAG, "RequestCode: " + requestCode + " resultCode: " + resultCode);
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BiometricUtils.removeGatekeeperPasswordHandle(this, mGkPwHandle);
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finishOrLaunchHandToParent(resultCode);
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}
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}
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private void finishOrLaunchHandToParent(int resultCode) {
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if (mParentalOptionsRequired) {
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if (!mSkipReturnToParent) {
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launchHandoffToParent();
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} else {
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setResult(RESULT_OK, newResultIntent());
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finish();
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}
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} else {
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setResult(resultCode);
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finish();
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}
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}
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private Intent newResultIntent() {
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final Intent intent = new Intent();
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final Bundle consentStatus = mParentalOptions.deepCopy();
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intent.putExtra(EXTRA_PARENTAL_CONSENT_STATUS, consentStatus);
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Log.v(TAG, "Result consent status: " + consentStatus);
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return intent;
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}
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private static boolean isSuccessfulConfirmOrChooseCredential(int requestCode, int resultCode) {
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final boolean okChoose = requestCode == REQUEST_CHOOSE_LOCK
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&& resultCode == ChooseLockPattern.RESULT_FINISHED;
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final boolean okConfirm = requestCode == REQUEST_CONFIRM_LOCK
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&& resultCode == RESULT_OK;
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return okChoose || okConfirm;
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}
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@Override
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protected void onApplyThemeResource(Resources.Theme theme, int resid, boolean first) {
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final int newResid = SetupWizardUtils.getTheme(this, getIntent());
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theme.applyStyle(R.style.SetupWizardPartnerResource, true);
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super.onApplyThemeResource(theme, newResid, first);
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}
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private void setOrConfirmCredentialsNow() {
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if (!mConfirmingCredentials) {
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mConfirmingCredentials = true;
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if (!userHasPassword(mUserId)) {
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launchChooseLock();
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} else {
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launchConfirmLock();
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}
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}
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}
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private void updateGatekeeperPasswordHandle(@NonNull Intent data) {
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|
mGkPwHandle = BiometricUtils.getGatekeeperPasswordHandle(data);
|
|
if (mParentalConsentHelper != null) {
|
|
mParentalConsentHelper.updateGatekeeperHandle(data);
|
|
}
|
|
}
|
|
|
|
private boolean userHasPassword(int userId) {
|
|
final UserManager userManager = getSystemService(UserManager.class);
|
|
final int passwordQuality = new LockPatternUtils(this)
|
|
.getActivePasswordQuality(userManager.getCredentialOwnerProfile(userId));
|
|
return passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
|
|
}
|
|
|
|
private void launchChooseLock() {
|
|
Log.d(TAG, "launchChooseLock");
|
|
|
|
Intent intent = BiometricUtils.getChooseLockIntent(this, getIntent());
|
|
intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_INSECURE_OPTIONS, true);
|
|
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_REQUEST_GK_PW_HANDLE, true);
|
|
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_BIOMETRICS, true);
|
|
|
|
if (mUserId != UserHandle.USER_NULL) {
|
|
intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
|
|
}
|
|
startActivityForResult(intent, REQUEST_CHOOSE_LOCK);
|
|
}
|
|
|
|
private void launchConfirmLock() {
|
|
Log.d(TAG, "launchConfirmLock");
|
|
|
|
final ChooseLockSettingsHelper.Builder builder = new ChooseLockSettingsHelper.Builder(this);
|
|
builder.setRequestCode(REQUEST_CONFIRM_LOCK)
|
|
.setRequestGatekeeperPasswordHandle(true)
|
|
.setForegroundOnly(true)
|
|
.setReturnCredentials(true);
|
|
if (mUserId != UserHandle.USER_NULL) {
|
|
builder.setUserId(mUserId);
|
|
}
|
|
final boolean launched = builder.show();
|
|
if (!launched) {
|
|
// This shouldn't happen, as we should only end up at this step if a lock thingy is
|
|
// already set.
|
|
finish();
|
|
}
|
|
}
|
|
|
|
// This should only be used to launch enrollment for single-sensor devices.
|
|
private void launchSingleSensorEnrollActivity(@NonNull Intent intent, int requestCode) {
|
|
byte[] hardwareAuthToken = null;
|
|
if (this instanceof InternalActivity) {
|
|
hardwareAuthToken = getIntent().getByteArrayExtra(
|
|
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
|
|
}
|
|
BiometricUtils.launchEnrollForResult(this, intent, requestCode, hardwareAuthToken,
|
|
mGkPwHandle, mUserId);
|
|
}
|
|
|
|
private void launchCredentialOnlyEnroll() {
|
|
final Intent intent;
|
|
// If only device credential was specified, ask the user to only set that up.
|
|
intent = new Intent(this, ChooseLockGeneric.class);
|
|
intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_INSECURE_OPTIONS, true);
|
|
launchSingleSensorEnrollActivity(intent, 0 /* requestCode */);
|
|
}
|
|
|
|
private void launchFingerprintOnlyEnroll() {
|
|
final Intent intent;
|
|
// ChooseLockGeneric can request to start fingerprint enroll bypassing the intro screen.
|
|
if (getIntent().getBooleanExtra(EXTRA_SKIP_INTRO, false)
|
|
&& this instanceof InternalActivity) {
|
|
intent = BiometricUtils.getFingerprintFindSensorIntent(this, getIntent());
|
|
} else {
|
|
intent = BiometricUtils.getFingerprintIntroIntent(this, getIntent());
|
|
}
|
|
launchSingleSensorEnrollActivity(intent, REQUEST_SINGLE_ENROLL);
|
|
}
|
|
|
|
private void launchFaceOnlyEnroll() {
|
|
final Intent intent = BiometricUtils.getFaceIntroIntent(this, getIntent());
|
|
launchSingleSensorEnrollActivity(intent, REQUEST_SINGLE_ENROLL);
|
|
}
|
|
|
|
private void launchFaceAndFingerprintEnroll() {
|
|
mMultiBiometricEnrollHelper = new MultiBiometricEnrollHelper(this, mUserId,
|
|
mIsFaceEnrollable, mIsFingerprintEnrollable, mGkPwHandle);
|
|
mMultiBiometricEnrollHelper.startNextStep();
|
|
}
|
|
|
|
private void launchHandoffToParent() {
|
|
final Intent intent = BiometricUtils.getHandoffToParentIntent(this, getIntent());
|
|
startActivityForResult(intent, REQUEST_HANDOFF_PARENT);
|
|
}
|
|
|
|
@Override
|
|
public int getMetricsCategory() {
|
|
return SettingsEnums.BIOMETRIC_ENROLL_ACTIVITY;
|
|
}
|
|
}
|