/*
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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 android.app.admin.DevicePolicyManager;
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import android.content.Intent;
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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.os.storage.StorageManager;
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import android.view.View;
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import android.widget.TextView;
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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.password.ChooseLockGeneric;
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import com.android.settings.password.ChooseLockGeneric.ChooseLockGenericFragment;
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import com.android.settings.password.ChooseLockSettingsHelper;
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import com.android.settings.password.SetupChooseLockGeneric;
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import com.google.android.setupcompat.template.FooterButton;
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import com.google.android.setupcompat.util.WizardManagerHelper;
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import com.google.android.setupdesign.span.LinkSpan;
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/**
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* Abstract base class for the intro onboarding activity for biometric enrollment.
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*/
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public abstract class BiometricEnrollIntroduction extends BiometricEnrollBase
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implements LinkSpan.OnClickListener {
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private UserManager mUserManager;
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private boolean mHasPassword;
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private boolean mBiometricUnlockDisabledByAdmin;
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private TextView mErrorText;
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/**
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* @return true if the biometric is disabled by a device administrator
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*/
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protected abstract boolean isDisabledByAdmin();
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/**
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* @return the layout resource
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*/
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protected abstract int getLayoutResource();
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/**
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* @return the header resource for if the biometric has been disabled by a device administrator
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*/
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protected abstract int getHeaderResDisabledByAdmin();
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/**
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* @return the default header resource
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*/
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protected abstract int getHeaderResDefault();
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/**
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* @return the description resource for if the biometric has been disabled by a device admin
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*/
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protected abstract int getDescriptionResDisabledByAdmin();
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/**
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* @return the cancel button
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*/
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protected abstract FooterButton getCancelButton();
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/**
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* @return the next button
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*/
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protected abstract FooterButton getNextButton();
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/**
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* @return the error TextView
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*/
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protected abstract TextView getErrorTextView();
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/**
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* @return 0 if there are no errors, otherwise returns the resource ID for the error string
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* to be displayed.
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*/
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protected abstract int checkMaxEnrolled();
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/**
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* @return the challenge generated by the biometric hardware
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*/
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protected abstract long getChallenge();
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/**
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* @return one of the ChooseLockSettingsHelper#EXTRA_KEY_FOR_* constants
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*/
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protected abstract String getExtraKeyForBiometric();
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/**
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* @return the intent for proceeding to the next step of enrollment. For Fingerprint, this
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* should lead to the "Find Sensor" activity. For Face, this should lead to the "Enrolling"
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* activity.
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*/
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protected abstract Intent getEnrollingIntent();
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/**
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* @return the title to be shown on the ConfirmLock screen.
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*/
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protected abstract int getConfirmLockTitleResId();
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/**
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* @param span
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*/
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public abstract void onClick(LinkSpan span);
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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Intent intent = getIntent();
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if (intent.getStringExtra(WizardManagerHelper.EXTRA_THEME) == null) {
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// Put the theme in the intent so it gets propagated to other activities in the flow
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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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mBiometricUnlockDisabledByAdmin = isDisabledByAdmin();
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setContentView(getLayoutResource());
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if (mBiometricUnlockDisabledByAdmin) {
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setHeaderText(getHeaderResDisabledByAdmin());
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} else {
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setHeaderText(getHeaderResDefault());
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}
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mErrorText = getErrorTextView();
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mUserManager = UserManager.get(this);
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updatePasswordQuality();
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if (!mHasPassword) {
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// No password registered, launch into enrollment wizard.
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launchChooseLock();
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} else if (mToken == null) {
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// It's possible to have a token but mLaunchedConfirmLock == false, since
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// ChooseLockGeneric can pass us a token.
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launchConfirmLock(getConfirmLockTitleResId(), getChallenge());
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}
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}
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@Override
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protected void onResume() {
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super.onResume();
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final int errorMsg = checkMaxEnrolled();
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if (errorMsg == 0) {
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mErrorText.setText(null);
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mErrorText.setVisibility(View.GONE);
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getNextButton().setVisibility(View.VISIBLE);
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} else {
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mErrorText.setText(errorMsg);
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mErrorText.setVisibility(View.VISIBLE);
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getNextButton().setText(getResources().getString(R.string.done));
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getNextButton().setVisibility(View.VISIBLE);
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}
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}
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private void updatePasswordQuality() {
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final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
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.getActivePasswordQuality(mUserManager.getCredentialOwnerProfile(mUserId));
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mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
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}
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@Override
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protected void onNextButtonClick(View view) {
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if (checkMaxEnrolled() == 0) {
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// Lock thingy is already set up, launch directly to the next page
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launchNextEnrollingActivity(mToken);
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} else {
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setResult(RESULT_FINISHED);
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finish();
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}
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}
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private void launchChooseLock() {
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Intent intent = getChooseLockIntent();
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long challenge = getChallenge();
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intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
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DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
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intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
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intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
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intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
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intent.putExtra(getExtraKeyForBiometric(), true);
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if (mUserId != UserHandle.USER_NULL) {
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intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
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}
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startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
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}
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private void launchNextEnrollingActivity(byte[] token) {
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Intent intent = getEnrollingIntent();
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if (token != null) {
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intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
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}
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if (mUserId != UserHandle.USER_NULL) {
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intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
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}
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intent.putExtra(EXTRA_FROM_SETTINGS_SUMMARY, mFromSettingsSummary);
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startActivityForResult(intent, BIOMETRIC_FIND_SENSOR_REQUEST);
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}
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protected Intent getChooseLockIntent() {
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if (WizardManagerHelper.isAnySetupWizard(getIntent())) {
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// Default to PIN lock in setup wizard
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Intent intent = new Intent(this, SetupChooseLockGeneric.class);
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if (StorageManager.isFileEncryptedNativeOrEmulated()) {
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intent.putExtra(
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LockPatternUtils.PASSWORD_TYPE_KEY,
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DevicePolicyManager.PASSWORD_QUALITY_NUMERIC);
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intent.putExtra(ChooseLockGenericFragment.EXTRA_SHOW_OPTIONS_BUTTON, true);
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}
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WizardManagerHelper.copyWizardManagerExtras(getIntent(), intent);
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return intent;
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} else {
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return new Intent(this, ChooseLockGeneric.class);
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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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if (requestCode == BIOMETRIC_FIND_SENSOR_REQUEST) {
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if (resultCode == RESULT_FINISHED || resultCode == RESULT_SKIP) {
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setResult(resultCode, data);
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finish();
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return;
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}
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} else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
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if (resultCode == RESULT_FINISHED) {
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updatePasswordQuality();
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mToken = data.getByteArrayExtra(
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ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
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overridePendingTransition(R.anim.sud_slide_next_in, R.anim.sud_slide_next_out);
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return;
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} else {
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setResult(resultCode, data);
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finish();
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}
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} else if (requestCode == CONFIRM_REQUEST) {
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if (resultCode == RESULT_OK && data != null) {
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mToken = data.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
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overridePendingTransition(R.anim.sud_slide_next_in, R.anim.sud_slide_next_out);
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} else {
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setResult(resultCode, data);
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finish();
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}
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} else if (requestCode == LEARN_MORE_REQUEST) {
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overridePendingTransition(R.anim.sud_slide_back_in, R.anim.sud_slide_back_out);
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}
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super.onActivityResult(requestCode, resultCode, data);
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}
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protected void onCancelButtonClick(View view) {
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finish();
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}
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protected void onSkipButtonClick(View view) {
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setResult(RESULT_SKIP);
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finish();
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}
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@Override
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protected void initViews() {
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super.initViews();
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TextView description = (TextView) findViewById(R.id.sud_layout_description);
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if (mBiometricUnlockDisabledByAdmin) {
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description.setText(getDescriptionResDisabledByAdmin());
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}
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}
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}
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