/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings;
import static android.app.admin.DevicePolicyResources.Strings.Settings.PERSONAL_CATEGORY_HEADER;
import static android.app.admin.DevicePolicyResources.Strings.Settings.WORK_CATEGORY_HEADER;
import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AuthenticatorDescription;
import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.admin.DevicePolicyManager;
import android.app.settings.SettingsEnums;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.UserInfo;
import android.content.res.Resources;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Environment;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.image.DynamicSystemManager;
import android.provider.Settings;
import android.telephony.euicc.EuiccManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnScrollChangeListener;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;
import androidx.annotation.VisibleForTesting;
import com.android.settings.core.InstrumentedFragment;
import com.android.settings.enterprise.ActionDisabledByAdminDialogHelper;
import com.android.settings.flags.Flags;
import com.android.settings.network.SubscriptionUtil;
import com.android.settings.password.ChooseLockSettingsHelper;
import com.android.settings.password.ConfirmLockPattern;
import com.android.settingslib.RestrictedLockUtilsInternal;
import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
import com.android.settingslib.development.DevelopmentSettingsEnabler;
import com.cariad.cea.settings.R;
import com.google.android.setupcompat.template.FooterBarMixin;
import com.google.android.setupcompat.template.FooterButton;
import com.google.android.setupcompat.template.FooterButton.ButtonType;
import com.google.android.setupdesign.GlifLayout;
import java.util.List;
/**
* Confirm and execute a reset of the device to a clean "just out of the box"
* state. Multiple confirmations are required: first, a general "are you sure
* you want to do this?" prompt, followed by a keyguard pattern trace if the user
* has defined one, followed by a final strongly-worded "THIS WILL ERASE EVERYTHING
* ON THE PHONE" prompt. If at any time the phone is allowed to go to sleep, is
* locked, et cetera, then the confirmation sequence is abandoned.
*
* This is the initial screen.
*/
public class MainClear extends InstrumentedFragment implements OnGlobalLayoutListener {
private static final String TAG = "MainClear";
@VisibleForTesting
static final int KEYGUARD_REQUEST = 55;
@VisibleForTesting
static final int CREDENTIAL_CONFIRM_REQUEST = 56;
private static final String KEY_SHOW_ESIM_RESET_CHECKBOX =
"masterclear.allow_retain_esim_profiles_after_fdr";
static final String ERASE_EXTERNAL_EXTRA = "erase_sd";
static final String ERASE_ESIMS_EXTRA = "erase_esim";
private View mContentView;
@VisibleForTesting
FooterButton mInitiateButton;
private View mExternalStorageContainer;
@VisibleForTesting
CheckBox mExternalStorage;
@VisibleForTesting
View mEsimStorageContainer;
@VisibleForTesting
CheckBox mEsimStorage;
@VisibleForTesting
ScrollView mScrollView;
@Override
public void onGlobalLayout() {
mInitiateButton.setEnabled(hasReachedBottom(mScrollView));
}
private void setUpActionBarAndTitle() {
final Activity activity = getActivity();
if (activity == null) {
Log.e(TAG, "No activity attached, skipping setUpActionBarAndTitle");
return;
}
final ActionBar actionBar = activity.getActionBar();
if (actionBar == null) {
Log.e(TAG, "No actionbar, skipping setUpActionBarAndTitle");
return;
}
actionBar.hide();
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
}
/**
* Keyguard validation is run using the standard {@link ConfirmLockPattern}
* component as a subactivity
*
* @param request the request code to be returned once confirmation finishes
* @return true if confirmation launched
*/
private boolean runKeyguardConfirmation(int request) {
Resources res = getActivity().getResources();
final ChooseLockSettingsHelper.Builder builder =
new ChooseLockSettingsHelper.Builder(getActivity(), this);
return builder.setRequestCode(request)
.setTitle(res.getText(R.string.main_clear_short_title))
.show();
}
@VisibleForTesting
boolean isValidRequestCode(int requestCode) {
return !((requestCode != KEYGUARD_REQUEST) && (requestCode != CREDENTIAL_CONFIRM_REQUEST));
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
onActivityResultInternal(requestCode, resultCode, data);
}
/*
* Internal method that allows easy testing without dealing with super references.
*/
@VisibleForTesting
void onActivityResultInternal(int requestCode, int resultCode, Intent data) {
if (!isValidRequestCode(requestCode)) {
return;
}
if (resultCode != Activity.RESULT_OK) {
establishInitialState();
return;
}
Intent intent = null;
// If returning from a Keyguard request, try to show an account confirmation request if
// applciable.
if (CREDENTIAL_CONFIRM_REQUEST != requestCode
&& (intent = getAccountConfirmationIntent()) != null) {
showAccountCredentialConfirmation(intent);
} else {
showFinalConfirmation();
}
}
@VisibleForTesting
void showFinalConfirmation() {
final Bundle args = new Bundle();
args.putBoolean(ERASE_EXTERNAL_EXTRA, mExternalStorage.isChecked());
args.putBoolean(ERASE_ESIMS_EXTRA, mEsimStorage.isChecked());
final Intent intent = new Intent();
intent.setClass(getContext(),
com.android.settings.Settings.FactoryResetConfirmActivity.class);
intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT, MainClearConfirm.class.getName());
intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_ARGUMENTS, args);
intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RESID,
R.string.main_clear_confirm_title);
intent.putExtra(MetricsFeatureProvider.EXTRA_SOURCE_METRICS_CATEGORY, getMetricsCategory());
getContext().startActivity(intent);
}
@VisibleForTesting
void showAccountCredentialConfirmation(Intent intent) {
startActivityForResult(intent, CREDENTIAL_CONFIRM_REQUEST);
}
@VisibleForTesting
Intent getAccountConfirmationIntent() {
final Context context = getActivity();
final String accountType = context.getString(R.string.account_type);
final String packageName = context.getString(R.string.account_confirmation_package);
final String className = context.getString(R.string.account_confirmation_class);
if (TextUtils.isEmpty(accountType)
|| TextUtils.isEmpty(packageName)
|| TextUtils.isEmpty(className)) {
Log.i(TAG, "Resources not set for account confirmation.");
return null;
}
final AccountManager am = AccountManager.get(context);
Account[] accounts = am.getAccountsByType(accountType);
if (accounts != null && accounts.length > 0) {
final Intent requestAccountConfirmation = new Intent()
.setPackage(packageName)
.setComponent(new ComponentName(packageName, className));
// Check to make sure that the intent is supported.
final PackageManager pm = context.getPackageManager();
final ResolveInfo resolution = pm.resolveActivity(requestAccountConfirmation, 0);
if (resolution != null
&& resolution.activityInfo != null
&& packageName.equals(resolution.activityInfo.packageName)) {
// Note that we need to check the packagename to make sure that an Activity resolver
// wasn't returned.
return requestAccountConfirmation;
} else {
Log.i(TAG, "Unable to resolve Activity: " + packageName + "/" + className);
}
} else {
Log.d(TAG, "No " + accountType + " accounts installed!");
}
return null;
}
/**
* If the user clicks to begin the reset sequence, we next require a
* keyguard confirmation if the user has currently enabled one. If there
* is no keyguard available, we simply go to the final confirmation prompt.
*
* If the user is in demo mode, route to the demo mode app for confirmation.
*/
@VisibleForTesting
protected final Button.OnClickListener mInitiateListener = new Button.OnClickListener() {
public void onClick(View view) {
final Context context = view.getContext();
if (Utils.isDemoUser(context)) {
final ComponentName componentName = Utils.getDeviceOwnerComponent(context);
if (componentName != null) {
final Intent requestFactoryReset = new Intent()
.setPackage(componentName.getPackageName())
.setAction(Intent.ACTION_FACTORY_RESET);
context.startActivity(requestFactoryReset);
}
return;
}
final DynamicSystemManager dsuManager = (DynamicSystemManager)
getActivity().getSystemService(Context.DYNAMIC_SYSTEM_SERVICE);
if (dsuManager.isInUse()) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle(R.string.dsu_is_running);
builder.setPositiveButton(R.string.okay, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {}
});
AlertDialog dsuAlertdialog = builder.create();
dsuAlertdialog.show();
return;
}
if (runKeyguardConfirmation(KEYGUARD_REQUEST)) {
return;
}
Intent intent = getAccountConfirmationIntent();
if (intent != null) {
showAccountCredentialConfirmation(intent);
} else {
showFinalConfirmation();
}
}
};
/**
* In its initial state, the activity presents a button for the user to
* click in order to initiate a confirmation sequence. This method is
* called from various other points in the code to reset the activity to
* this base state.
*
* <p>Reinflating views from resources is expensive and prevents us from
* caching widget pointers, so we use a single-inflate pattern: we lazy-
* inflate each view, caching all of the widget pointers we'll need at the
* time, then simply reuse the inflated views directly whenever we need
* to change contents.
*/
@VisibleForTesting
void establishInitialState() {
setUpActionBarAndTitle();
setUpInitiateButton();
mExternalStorageContainer = mContentView.findViewById(R.id.erase_external_container);
mExternalStorage = mContentView.findViewById(R.id.erase_external);
mEsimStorageContainer = mContentView.findViewById(R.id.erase_esim_container);
mEsimStorage = mContentView.findViewById(R.id.erase_esim);
if (mScrollView != null) {
mScrollView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
mScrollView = mContentView.findViewById(R.id.main_clear_scrollview);
/*
* If the external storage is emulated, it will be erased with a factory
* reset at any rate. There is no need to have a separate option until
* we have a factory reset that only erases some directories and not
* others.
*/
if (Environment.isExternalStorageEmulated()) {
mExternalStorageContainer.setVisibility(View.GONE);
final View externalOption = mContentView.findViewById(R.id.erase_external_option_text);
externalOption.setVisibility(View.GONE);
final View externalAlsoErased = mContentView.findViewById(R.id.also_erases_external);
externalAlsoErased.setVisibility(View.VISIBLE);
mExternalStorage.setChecked(false);
} else {
mExternalStorageContainer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mExternalStorage.toggle();
}
});
}
if (showWipeEuicc()) {
if (showWipeEuiccCheckbox()) {
mEsimStorageContainer.setVisibility(View.VISIBLE);
mEsimStorageContainer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mEsimStorage.toggle();
}
});
} else {
final View esimAlsoErased = mContentView.findViewById(R.id.also_erases_esim);
esimAlsoErased.setVisibility(View.VISIBLE);
final View noCancelMobilePlan = mContentView.findViewById(
R.id.no_cancel_mobile_plan);
noCancelMobilePlan.setVisibility(View.VISIBLE);
mEsimStorage.setChecked(true /* checked */);
}
} else {
mEsimStorage.setChecked(false /* checked */);
}
final UserManager um = (UserManager) getActivity().getSystemService(Context.USER_SERVICE);
loadAccountList(um);
final StringBuffer contentDescription = new StringBuffer();
final View mainClearContainer = mContentView.findViewById(R.id.main_clear_container);
getContentDescription(mainClearContainer, contentDescription);
mainClearContainer.setContentDescription(contentDescription);
// Set the status of initiateButton based on scrollview
mScrollView.setOnScrollChangeListener(new OnScrollChangeListener() {
@Override
public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX,
int oldScrollY) {
if (v instanceof ScrollView && hasReachedBottom((ScrollView) v)) {
mInitiateButton.setEnabled(true);
mScrollView.setOnScrollChangeListener(null);
}
}
});
// Set the initial state of the initiateButton
mScrollView.getViewTreeObserver().addOnGlobalLayoutListener(this);
}
/**
* Whether to show any UI which is SIM related.
*/
@VisibleForTesting
boolean showAnySubscriptionInfo(Context context) {
return (context != null) && SubscriptionUtil.isSimHardwareVisible(context);
}
/**
* Whether to show strings indicating that the eUICC will be wiped.
*
* <p>We show the strings on any device which supports eUICC as long as the eUICC was ever
* provisioned (that is, at least one profile was ever downloaded onto it).
*/
@VisibleForTesting
boolean showWipeEuicc() {
Context context = getContext();
if (!showAnySubscriptionInfo(context) || !isEuiccEnabled(context)) {
return false;
}
ContentResolver cr = context.getContentResolver();
return Settings.Global.getInt(cr, Settings.Global.EUICC_PROVISIONED, 0) != 0
|| DevelopmentSettingsEnabler.isDevelopmentSettingsEnabled(context);
}
@VisibleForTesting
boolean showWipeEuiccCheckbox() {
return SystemProperties
.getBoolean(KEY_SHOW_ESIM_RESET_CHECKBOX, false /* def */);
}
@VisibleForTesting
protected boolean isEuiccEnabled(Context context) {
EuiccManager euiccManager = (EuiccManager) context.getSystemService(Context.EUICC_SERVICE);
return euiccManager.isEnabled();
}
@VisibleForTesting
boolean hasReachedBottom(final ScrollView scrollView) {
if (scrollView.getChildCount() < 1) {
return true;
}
final View view = scrollView.getChildAt(0);
final int diff = view.getBottom() - (scrollView.getHeight() + scrollView.getScrollY());
return diff <= 0;
}
private void setUpInitiateButton() {
if (mInitiateButton != null) {
return;
}
final GlifLayout layout = mContentView.findViewById(R.id.setup_wizard_layout);
final FooterBarMixin mixin = layout.getMixin(FooterBarMixin.class);
final Activity activity = getActivity();
mixin.setPrimaryButton(
new FooterButton.Builder(activity)
.setText(R.string.main_clear_button_text)
.setListener(mInitiateListener)
.setButtonType(ButtonType.OTHER)
.setTheme(com.google.android.setupdesign.R.style.SudGlifButton_Primary)
.build());
if (Flags.showFactoryResetCancelButton()) {
mixin.setSecondaryButton(
new FooterButton.Builder(activity)
.setText(android.R.string.cancel)
.setListener(view -> activity.onBackPressed())
.setButtonType(ButtonType.CANCEL)
.setTheme(
com.google.android.setupdesign.R.style.SudGlifButton_Secondary)
.build());
}
mInitiateButton = mixin.getPrimaryButton();
}
private void getContentDescription(View v, StringBuffer description) {
if (v.getVisibility() != View.VISIBLE) {
return;
}
if (v instanceof ViewGroup) {
ViewGroup vGroup = (ViewGroup) v;
for (int i = 0; i < vGroup.getChildCount(); i++) {
View nextChild = vGroup.getChildAt(i);
getContentDescription(nextChild, description);
}
} else if (v instanceof TextView) {
TextView vText = (TextView) v;
description.append(vText.getText());
description.append(","); // Allow Talkback to pause between sections.
}
}
private void loadAccountList(final UserManager um) {
View accountsLabel = mContentView.findViewById(R.id.accounts_label);
LinearLayout contents = (LinearLayout) mContentView.findViewById(R.id.accounts);
contents.removeAllViews();
Context context = getActivity();
final List<UserInfo> profiles = um.getProfiles(UserHandle.myUserId());
final int profilesSize = profiles.size();
AccountManager mgr = AccountManager.get(context);
LayoutInflater inflater = (LayoutInflater) context.getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
int accountsCount = 0;
for (int profileIndex = 0; profileIndex < profilesSize; profileIndex++) {
final UserInfo userInfo = profiles.get(profileIndex);
final int profileId = userInfo.id;
final UserHandle userHandle = new UserHandle(profileId);
Account[] accounts = mgr.getAccountsAsUser(profileId);
final int accountLength = accounts.length;
if (accountLength == 0) {
continue;
}
accountsCount += accountLength;
AuthenticatorDescription[] descs = AccountManager.get(context)
.getAuthenticatorTypesAsUser(profileId);
final int descLength = descs.length;
if (profilesSize > 1) {
View titleView = Utils.inflateCategoryHeader(inflater, contents);
titleView.setPadding(0 /* left */, titleView.getPaddingTop(),
0 /* right */, titleView.getPaddingBottom());
final TextView titleText = (TextView) titleView.findViewById(android.R.id.title);
DevicePolicyManager devicePolicyManager =
context.getSystemService(DevicePolicyManager.class);
if (userInfo.isManagedProfile()) {
titleText.setText(devicePolicyManager.getResources().getString(
WORK_CATEGORY_HEADER, () -> getString(
com.android.settingslib.R.string.category_work)));
} else {
titleText.setText(devicePolicyManager.getResources().getString(
PERSONAL_CATEGORY_HEADER, () -> getString(
com.android.settingslib.R.string.category_personal)));
}
contents.addView(titleView);
}
for (int i = 0; i < accountLength; i++) {
Account account = accounts[i];
AuthenticatorDescription desc = null;
for (int j = 0; j < descLength; j++) {
if (account.type.equals(descs[j].type)) {
desc = descs[j];
break;
}
}
if (desc == null) {
Log.w(TAG, "No descriptor for account name=" + account.name
+ " type=" + account.type);
continue;
}
Drawable icon = null;
try {
if (desc.iconId != 0) {
Context authContext = context.createPackageContextAsUser(desc.packageName,
0, userHandle);
icon = context.getPackageManager().getUserBadgedIcon(
authContext.getDrawable(desc.iconId), userHandle);
}
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "Bad package name for account type " + desc.type);
} catch (Resources.NotFoundException e) {
Log.w(TAG, "Invalid icon id for account type " + desc.type, e);
}
if (icon == null) {
icon = context.getPackageManager().getDefaultActivityIcon();
}
View child = inflater.inflate(R.layout.main_clear_account, contents, false);
((ImageView) child.findViewById(android.R.id.icon)).setImageDrawable(icon);
((TextView) child.findViewById(android.R.id.title)).setText(account.name);
contents.addView(child);
}
}
if (accountsCount > 0) {
accountsLabel.setVisibility(View.VISIBLE);
contents.setVisibility(View.VISIBLE);
}
// Checking for all other users and their profiles if any.
View otherUsers = mContentView.findViewById(R.id.other_users_present);
final boolean hasOtherUsers = (um.getUserCount() - profilesSize) > 0;
otherUsers.setVisibility(hasOtherUsers ? View.VISIBLE : View.GONE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final Context context = getContext();
final EnforcedAdmin admin = RestrictedLockUtilsInternal.checkIfRestrictionEnforced(context,
UserManager.DISALLOW_FACTORY_RESET, UserHandle.myUserId());
final UserManager um = UserManager.get(context);
final boolean disallow = !um.isAdminUser() || RestrictedLockUtilsInternal
.hasBaseUserRestriction(context, UserManager.DISALLOW_FACTORY_RESET,
UserHandle.myUserId());
if (disallow && !Utils.isDemoUser(context)) {
return inflater.inflate(R.layout.main_clear_disallowed_screen, null);
} else if (admin != null && !Utils.isDemoUser(context)) {
new ActionDisabledByAdminDialogHelper(getActivity())
.prepareDialogBuilder(UserManager.DISALLOW_FACTORY_RESET, admin)
.setOnDismissListener(__ -> getActivity().finish())
.show();
return new View(getContext());
}
mContentView = inflater.inflate(R.layout.main_clear, null);
establishInitialState();
return mContentView;
}
@Override
public int getMetricsCategory() {
return SettingsEnums.MASTER_CLEAR;
}
}