1895f8b5f2
Allows it to be used in more projects Bug: 154161590 Test: Manually opened each setting that was impacted Change-Id: Ife59074e5f8ffa76c2c81cca4022ca200bb59526
1035 lines
41 KiB
Java
1035 lines
41 KiB
Java
/*
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* Copyright (C) 2011 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;
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import android.app.Activity;
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import android.app.StatusBarManager;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.ActivityInfo;
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import android.content.pm.PackageManager;
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import android.content.res.Resources.NotFoundException;
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import android.media.AudioManager;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.Message;
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import android.os.PowerManager;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.os.UserHandle;
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import android.os.storage.IStorageManager;
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import android.os.storage.StorageManager;
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import android.provider.Settings;
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import android.sysprop.VoldProperties;
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import android.telecom.TelecomManager;
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import android.telephony.TelephonyManager;
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import android.text.Editable;
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import android.text.TextUtils;
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import android.text.TextWatcher;
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import android.text.format.DateUtils;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.View.OnKeyListener;
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import android.view.View.OnTouchListener;
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import android.view.WindowManager;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputMethodInfo;
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import android.view.inputmethod.InputMethodManager;
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import android.view.inputmethod.InputMethodSubtype;
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import android.widget.Button;
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import android.widget.ImeAwareEditText;
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import android.widget.ProgressBar;
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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.internal.widget.LockPatternView;
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import com.android.internal.widget.LockPatternView.Cell;
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import com.android.internal.widget.LockPatternView.DisplayMode;
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import java.util.List;
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/**
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* Settings screens to show the UI flows for encrypting/decrypting the device.
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*
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* This may be started via adb for debugging the UI layout, without having to go through
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* encryption flows everytime. It should be noted that starting the activity in this manner
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* is only useful for verifying UI-correctness - the behavior will not be identical.
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* <pre>
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* $ adb shell pm enable com.android.settings/.CryptKeeper
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* $ adb shell am start \
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* -e "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW" "progress" \
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* -n com.android.settings/.CryptKeeper
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* </pre>
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*/
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public class CryptKeeper extends Activity implements TextView.OnEditorActionListener,
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OnKeyListener, OnTouchListener, TextWatcher {
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private static final String TAG = "CryptKeeper";
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private static final String DECRYPT_STATE = "trigger_restart_framework";
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/** Message sent to us to indicate encryption update progress. */
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private static final int MESSAGE_UPDATE_PROGRESS = 1;
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/** Message sent to us to indicate alerting the user that we are waiting for password entry */
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private static final int MESSAGE_NOTIFY = 2;
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// Constants used to control policy.
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private static final int MAX_FAILED_ATTEMPTS = 30;
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private static final int COOL_DOWN_ATTEMPTS = 10;
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// Intent action for launching the Emergency Dialer activity.
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static final String ACTION_EMERGENCY_DIAL = "com.android.phone.EmergencyDialer.DIAL";
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// Debug Intent extras so that this Activity may be started via adb for debugging UI layouts
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private static final String EXTRA_FORCE_VIEW =
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"com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW";
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private static final String FORCE_VIEW_PROGRESS = "progress";
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private static final String FORCE_VIEW_ERROR = "error";
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private static final String FORCE_VIEW_PASSWORD = "password";
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private static final String STATE_COOLDOWN = "cooldown";
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/** When encryption is detected, this flag indicates whether or not we've checked for errors. */
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private boolean mValidationComplete;
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private boolean mValidationRequested;
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/** A flag to indicate that the volume is in a bad state (e.g. partially encrypted). */
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private boolean mEncryptionGoneBad;
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/** If gone bad, should we show encryption failed (false) or corrupt (true)*/
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private boolean mCorrupt;
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/** A flag to indicate when the back event should be ignored */
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/** When set, blocks unlocking. Set every COOL_DOWN_ATTEMPTS attempts, only cleared
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by power cycling phone. */
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private boolean mCooldown = false;
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PowerManager.WakeLock mWakeLock;
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private ImeAwareEditText mPasswordEntry;
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private LockPatternView mLockPatternView;
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/** Number of calls to {@link #notifyUser()} to ignore before notifying. */
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private int mNotificationCountdown = 0;
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/** Number of calls to {@link #notifyUser()} before we release the wakelock */
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private int mReleaseWakeLockCountdown = 0;
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private int mStatusString = R.string.enter_password;
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// how long we wait to clear a wrong pattern
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private static final int WRONG_PATTERN_CLEAR_TIMEOUT_MS = 1500;
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// how long we wait to clear a right pattern
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private static final int RIGHT_PATTERN_CLEAR_TIMEOUT_MS = 500;
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// When the user enters a short pin/password, run this to show an error,
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// but don't count it against attempts.
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private final Runnable mFakeUnlockAttemptRunnable = new Runnable() {
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@Override
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public void run() {
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handleBadAttempt(1 /* failedAttempt */);
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}
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};
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// TODO: this should be tuned to match minimum decryption timeout
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private static final int FAKE_ATTEMPT_DELAY = 1000;
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private final Runnable mClearPatternRunnable = new Runnable() {
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@Override
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public void run() {
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mLockPatternView.clearPattern();
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}
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};
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/**
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* Used to propagate state through configuration changes (e.g. screen rotation)
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*/
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private static class NonConfigurationInstanceState {
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final PowerManager.WakeLock wakelock;
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NonConfigurationInstanceState(PowerManager.WakeLock _wakelock) {
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wakelock = _wakelock;
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}
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}
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private class DecryptTask extends AsyncTask<String, Void, Integer> {
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private void hide(int id) {
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View view = findViewById(id);
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if (view != null) {
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view.setVisibility(View.GONE);
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}
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}
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@Override
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protected void onPreExecute() {
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super.onPreExecute();
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beginAttempt();
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}
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@Override
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protected Integer doInBackground(String... params) {
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final IStorageManager service = getStorageManager();
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try {
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return service.decryptStorage(params[0]);
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} catch (Exception e) {
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Log.e(TAG, "Error while decrypting...", e);
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return -1;
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}
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}
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@Override
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protected void onPostExecute(Integer failedAttempts) {
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if (failedAttempts == 0) {
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// The password was entered successfully. Simply do nothing
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// and wait for the service restart to switch to surfacefligner
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if (mLockPatternView != null) {
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mLockPatternView.removeCallbacks(mClearPatternRunnable);
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mLockPatternView.postDelayed(mClearPatternRunnable, RIGHT_PATTERN_CLEAR_TIMEOUT_MS);
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}
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final TextView status = (TextView) findViewById(R.id.status);
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status.setText(R.string.starting_android);
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hide(R.id.passwordEntry);
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hide(R.id.switch_ime_button);
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hide(R.id.lockPattern);
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hide(R.id.owner_info);
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hide(R.id.emergencyCallButton);
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} else if (failedAttempts == MAX_FAILED_ATTEMPTS) {
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// Factory reset the device.
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Intent intent = new Intent(Intent.ACTION_FACTORY_RESET);
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intent.setPackage("android");
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intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
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intent.putExtra(Intent.EXTRA_REASON, "CryptKeeper.MAX_FAILED_ATTEMPTS");
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sendBroadcast(intent);
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} else if (failedAttempts == -1) {
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// Right password, but decryption failed. Tell user bad news ...
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setContentView(R.layout.crypt_keeper_progress);
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showFactoryReset(true);
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return;
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} else {
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handleBadAttempt(failedAttempts);
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}
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}
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}
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private void beginAttempt() {
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final TextView status = (TextView) findViewById(R.id.status);
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status.setText(R.string.checking_decryption);
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}
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private void handleBadAttempt(Integer failedAttempts) {
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// Wrong entry. Handle pattern case.
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if (mLockPatternView != null) {
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mLockPatternView.setDisplayMode(DisplayMode.Wrong);
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mLockPatternView.removeCallbacks(mClearPatternRunnable);
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mLockPatternView.postDelayed(mClearPatternRunnable, WRONG_PATTERN_CLEAR_TIMEOUT_MS);
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}
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if ((failedAttempts % COOL_DOWN_ATTEMPTS) == 0) {
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mCooldown = true;
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// No need to setBackFunctionality(false) - it's already done
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// at this point.
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cooldown();
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} else {
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final TextView status = (TextView) findViewById(R.id.status);
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int remainingAttempts = MAX_FAILED_ATTEMPTS - failedAttempts;
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if (remainingAttempts < COOL_DOWN_ATTEMPTS) {
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CharSequence warningTemplate = getText(R.string.crypt_keeper_warn_wipe);
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CharSequence warning = TextUtils.expandTemplate(warningTemplate,
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Integer.toString(remainingAttempts));
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status.setText(warning);
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} else {
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int passwordType = StorageManager.CRYPT_TYPE_PASSWORD;
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try {
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final IStorageManager service = getStorageManager();
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passwordType = service.getPasswordType();
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} catch (Exception e) {
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Log.e(TAG, "Error calling mount service " + e);
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}
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if (passwordType == StorageManager.CRYPT_TYPE_PIN) {
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status.setText(R.string.cryptkeeper_wrong_pin);
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} else if (passwordType == StorageManager.CRYPT_TYPE_PATTERN) {
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status.setText(R.string.cryptkeeper_wrong_pattern);
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} else {
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status.setText(R.string.cryptkeeper_wrong_password);
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}
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}
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if (mLockPatternView != null) {
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mLockPatternView.setDisplayMode(DisplayMode.Wrong);
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mLockPatternView.setEnabled(true);
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}
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// Reenable the password entry
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if (mPasswordEntry != null) {
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mPasswordEntry.setEnabled(true);
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mPasswordEntry.scheduleShowSoftInput();
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setBackFunctionality(true);
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}
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}
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}
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private class ValidationTask extends AsyncTask<Void, Void, Boolean> {
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int state;
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@Override
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protected Boolean doInBackground(Void... params) {
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final IStorageManager service = getStorageManager();
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try {
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Log.d(TAG, "Validating encryption state.");
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state = service.getEncryptionState();
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if (state == StorageManager.ENCRYPTION_STATE_NONE) {
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Log.w(TAG, "Unexpectedly in CryptKeeper even though there is no encryption.");
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return true; // Unexpected, but fine, I guess...
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}
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return state == StorageManager.ENCRYPTION_STATE_OK;
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} catch (RemoteException e) {
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Log.w(TAG, "Unable to get encryption state properly");
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return true;
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}
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}
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@Override
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protected void onPostExecute(Boolean result) {
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mValidationComplete = true;
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if (Boolean.FALSE.equals(result)) {
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Log.w(TAG, "Incomplete, or corrupted encryption detected. Prompting user to wipe.");
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mEncryptionGoneBad = true;
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mCorrupt = state == StorageManager.ENCRYPTION_STATE_ERROR_CORRUPT;
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} else {
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Log.d(TAG, "Encryption state validated. Proceeding to configure UI");
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}
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setupUi();
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}
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}
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private final Handler mHandler = new Handler() {
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@Override
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public void handleMessage(Message msg) {
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switch (msg.what) {
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case MESSAGE_UPDATE_PROGRESS:
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updateProgress();
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break;
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case MESSAGE_NOTIFY:
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notifyUser();
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break;
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}
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}
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};
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private AudioManager mAudioManager;
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/** The status bar where back/home/recent buttons are shown. */
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private StatusBarManager mStatusBar;
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/** All the widgets to disable in the status bar */
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final private static int sWidgetsToDisable = StatusBarManager.DISABLE_EXPAND
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| StatusBarManager.DISABLE_NOTIFICATION_ICONS
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| StatusBarManager.DISABLE_NOTIFICATION_ALERTS
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| StatusBarManager.DISABLE_HOME
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| StatusBarManager.DISABLE_SEARCH
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| StatusBarManager.DISABLE_RECENT;
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protected static final int MIN_LENGTH_BEFORE_REPORT = LockPatternUtils.MIN_LOCK_PATTERN_SIZE;
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/** @return whether or not this Activity was started for debugging the UI only. */
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private boolean isDebugView() {
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return getIntent().hasExtra(EXTRA_FORCE_VIEW);
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}
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/** @return whether or not this Activity was started for debugging the specific UI view only. */
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private boolean isDebugView(String viewType /* non-nullable */) {
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return viewType.equals(getIntent().getStringExtra(EXTRA_FORCE_VIEW));
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}
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/**
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* Notify the user that we are awaiting input. Currently this sends an audio alert.
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*/
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private void notifyUser() {
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if (mNotificationCountdown > 0) {
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--mNotificationCountdown;
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} else if (mAudioManager != null) {
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try {
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// Play the standard keypress sound at full volume. This should be available on
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// every device. We cannot play a ringtone here because media services aren't
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// available yet. A DTMF-style tone is too soft to be noticed, and might not exist
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// on tablet devices. The idea is to alert the user that something is needed: this
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// does not have to be pleasing.
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mAudioManager.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD, 100);
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} catch (Exception e) {
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Log.w(TAG, "notifyUser: Exception while playing sound: " + e);
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}
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}
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// Notify the user again in 5 seconds.
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mHandler.removeMessages(MESSAGE_NOTIFY);
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mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 5 * 1000);
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if (mWakeLock.isHeld()) {
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if (mReleaseWakeLockCountdown > 0) {
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--mReleaseWakeLockCountdown;
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} else {
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mWakeLock.release();
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}
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}
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}
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/**
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* Ignore back events from this activity always - there's nowhere to go back
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* to
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*/
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@Override
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public void onBackPressed() {
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// If we are not encrypted or encrypting, get out quickly.
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final String state = VoldProperties.decrypt().orElse("");
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if (!isDebugView() && ("".equals(state) || DECRYPT_STATE.equals(state))) {
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disableCryptKeeperComponent(this);
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// Typically CryptKeeper is launched as the home app. We didn't
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// want to be running, so need to finish this activity. We can count
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// on the activity manager re-launching the new home app upon finishing
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// this one, since this will leave the activity stack empty.
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// NOTE: This is really grungy. I think it would be better for the
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// activity manager to explicitly launch the crypt keeper instead of
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// home in the situation where we need to decrypt the device
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finish();
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return;
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}
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try {
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if (getResources().getBoolean(R.bool.crypt_keeper_allow_rotation)) {
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setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
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}
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} catch (NotFoundException e) {
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}
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// Disable the status bar, but do NOT disable back because the user needs a way to go
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// from keyboard settings and back to the password screen.
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mStatusBar = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE);
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mStatusBar.disable(sWidgetsToDisable);
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if (savedInstanceState != null) {
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mCooldown = savedInstanceState.getBoolean(STATE_COOLDOWN);
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}
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setAirplaneModeIfNecessary();
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mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
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// Check for (and recover) retained instance data
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final Object lastInstance = getLastNonConfigurationInstance();
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if (lastInstance instanceof NonConfigurationInstanceState) {
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NonConfigurationInstanceState retained = (NonConfigurationInstanceState) lastInstance;
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mWakeLock = retained.wakelock;
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Log.d(TAG, "Restoring wakelock from NonConfigurationInstanceState");
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}
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}
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@Override
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public void onSaveInstanceState(Bundle savedInstanceState) {
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savedInstanceState.putBoolean(STATE_COOLDOWN, mCooldown);
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}
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/**
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* Note, we defer the state check and screen setup to onStart() because this will be
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* re-run if the user clicks the power button (sleeping/waking the screen), and this is
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* especially important if we were to lose the wakelock for any reason.
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*/
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@Override
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public void onStart() {
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super.onStart();
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setupUi();
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}
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/**
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* Initializes the UI based on the current state of encryption.
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* This is idempotent - calling repeatedly will simply re-initialize the UI.
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*/
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private void setupUi() {
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if (mEncryptionGoneBad || isDebugView(FORCE_VIEW_ERROR)) {
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setContentView(R.layout.crypt_keeper_progress);
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showFactoryReset(mCorrupt);
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return;
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}
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final String progress = VoldProperties.encrypt_progress().orElse("");
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if (!"".equals(progress) || isDebugView(FORCE_VIEW_PROGRESS)) {
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setContentView(R.layout.crypt_keeper_progress);
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encryptionProgressInit();
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} else if (mValidationComplete || isDebugView(FORCE_VIEW_PASSWORD)) {
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new AsyncTask<Void, Void, Void>() {
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int passwordType = StorageManager.CRYPT_TYPE_PASSWORD;
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String owner_info;
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boolean pattern_visible;
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boolean password_visible;
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@Override
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public Void doInBackground(Void... v) {
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try {
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final IStorageManager service = getStorageManager();
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passwordType = service.getPasswordType();
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owner_info = service.getField(StorageManager.OWNER_INFO_KEY);
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pattern_visible = !("0".equals(service.getField(StorageManager.PATTERN_VISIBLE_KEY)));
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password_visible = !("0".equals(service.getField(StorageManager.PASSWORD_VISIBLE_KEY)));
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} catch (Exception e) {
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Log.e(TAG, "Error calling mount service " + e);
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}
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return null;
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}
|
|
|
|
@Override
|
|
public void onPostExecute(java.lang.Void v) {
|
|
Settings.System.putInt(getContentResolver(), Settings.System.TEXT_SHOW_PASSWORD,
|
|
password_visible ? 1 : 0);
|
|
|
|
if (passwordType == StorageManager.CRYPT_TYPE_PIN) {
|
|
setContentView(R.layout.crypt_keeper_pin_entry);
|
|
mStatusString = R.string.enter_pin;
|
|
} else if (passwordType == StorageManager.CRYPT_TYPE_PATTERN) {
|
|
setContentView(R.layout.crypt_keeper_pattern_entry);
|
|
setBackFunctionality(false);
|
|
mStatusString = R.string.enter_pattern;
|
|
} else {
|
|
setContentView(R.layout.crypt_keeper_password_entry);
|
|
mStatusString = R.string.enter_password;
|
|
}
|
|
final TextView status = (TextView) findViewById(R.id.status);
|
|
status.setText(mStatusString);
|
|
|
|
final TextView ownerInfo = (TextView) findViewById(R.id.owner_info);
|
|
ownerInfo.setText(owner_info);
|
|
ownerInfo.setSelected(true); // Required for marquee'ing to work
|
|
|
|
passwordEntryInit();
|
|
|
|
findViewById(android.R.id.content).setSystemUiVisibility(View.STATUS_BAR_DISABLE_BACK);
|
|
|
|
if (mLockPatternView != null) {
|
|
mLockPatternView.setInStealthMode(!pattern_visible);
|
|
}
|
|
if (mCooldown) {
|
|
// in case we are cooling down and coming back from emergency dialler
|
|
setBackFunctionality(false);
|
|
cooldown();
|
|
}
|
|
|
|
}
|
|
}.execute();
|
|
} else if (!mValidationRequested) {
|
|
// We're supposed to be encrypted, but no validation has been done.
|
|
new ValidationTask().execute((Void[]) null);
|
|
mValidationRequested = true;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onStop() {
|
|
super.onStop();
|
|
mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS);
|
|
mHandler.removeMessages(MESSAGE_NOTIFY);
|
|
}
|
|
|
|
/**
|
|
* Reconfiguring, so propagate the wakelock to the next instance. This runs between onStop()
|
|
* and onDestroy() and only if we are changing configuration (e.g. rotation). Also clears
|
|
* mWakeLock so the subsequent call to onDestroy does not release it.
|
|
*/
|
|
@Override
|
|
public Object onRetainNonConfigurationInstance() {
|
|
NonConfigurationInstanceState state = new NonConfigurationInstanceState(mWakeLock);
|
|
Log.d(TAG, "Handing wakelock off to NonConfigurationInstanceState");
|
|
mWakeLock = null;
|
|
return state;
|
|
}
|
|
|
|
@Override
|
|
public void onDestroy() {
|
|
super.onDestroy();
|
|
|
|
if (mWakeLock != null) {
|
|
Log.d(TAG, "Releasing and destroying wakelock");
|
|
mWakeLock.release();
|
|
mWakeLock = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start encrypting the device.
|
|
*/
|
|
private void encryptionProgressInit() {
|
|
// Accquire a partial wakelock to prevent the device from sleeping. Note
|
|
// we never release this wakelock as we will be restarted after the device
|
|
// is encrypted.
|
|
Log.d(TAG, "Encryption progress screen initializing.");
|
|
if (mWakeLock == null) {
|
|
Log.d(TAG, "Acquiring wakelock.");
|
|
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
|
|
mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
|
|
mWakeLock.acquire();
|
|
}
|
|
|
|
((ProgressBar) findViewById(R.id.progress_bar)).setIndeterminate(true);
|
|
// Ignore all back presses from now, both hard and soft keys.
|
|
setBackFunctionality(false);
|
|
// Start the first run of progress manually. This method sets up messages to occur at
|
|
// repeated intervals.
|
|
updateProgress();
|
|
}
|
|
|
|
/**
|
|
* Show factory reset screen allowing the user to reset their phone when
|
|
* there is nothing else we can do
|
|
* @param corrupt true if userdata is corrupt, false if encryption failed
|
|
* partway through
|
|
*/
|
|
private void showFactoryReset(final boolean corrupt) {
|
|
// Hide the encryption-bot to make room for the "factory reset" button
|
|
findViewById(R.id.encroid).setVisibility(View.GONE);
|
|
|
|
// Show the reset button, failure text, and a divider
|
|
final Button button = (Button) findViewById(R.id.factory_reset);
|
|
button.setVisibility(View.VISIBLE);
|
|
button.setOnClickListener(new OnClickListener() {
|
|
@Override
|
|
public void onClick(View v) {
|
|
// Factory reset the device.
|
|
Intent intent = new Intent(Intent.ACTION_FACTORY_RESET);
|
|
intent.setPackage("android");
|
|
intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
|
|
intent.putExtra(Intent.EXTRA_REASON,
|
|
"CryptKeeper.showFactoryReset() corrupt=" + corrupt);
|
|
sendBroadcast(intent);
|
|
}
|
|
});
|
|
|
|
// Alert the user of the failure.
|
|
if (corrupt) {
|
|
((TextView) findViewById(R.id.title)).setText(R.string.crypt_keeper_data_corrupt_title);
|
|
((TextView) findViewById(R.id.status)).setText(R.string.crypt_keeper_data_corrupt_summary);
|
|
} else {
|
|
((TextView) findViewById(R.id.title)).setText(R.string.crypt_keeper_failed_title);
|
|
((TextView) findViewById(R.id.status)).setText(R.string.crypt_keeper_failed_summary);
|
|
}
|
|
|
|
final View view = findViewById(R.id.bottom_divider);
|
|
// TODO(viki): Why would the bottom divider be missing in certain layouts? Investigate.
|
|
if (view != null) {
|
|
view.setVisibility(View.VISIBLE);
|
|
}
|
|
}
|
|
|
|
private void updateProgress() {
|
|
final String state = VoldProperties.encrypt_progress().orElse("");
|
|
|
|
if ("error_partially_encrypted".equals(state)) {
|
|
showFactoryReset(false);
|
|
return;
|
|
}
|
|
|
|
// Get status as percentage first
|
|
CharSequence status = getText(R.string.crypt_keeper_setup_description);
|
|
int percent = 0;
|
|
try {
|
|
// Force a 50% progress state when debugging the view.
|
|
percent = isDebugView() ? 50 : Integer.parseInt(state);
|
|
} catch (Exception e) {
|
|
Log.w(TAG, "Error parsing progress: " + e.toString());
|
|
}
|
|
String progress = Integer.toString(percent);
|
|
|
|
// Now try to get status as time remaining and replace as appropriate
|
|
Log.v(TAG, "Encryption progress: " + progress);
|
|
try {
|
|
int time = VoldProperties.encrypt_time_remaining().get();
|
|
if (time >= 0) {
|
|
// Round up to multiple of 10 - this way display is less jerky
|
|
time = (time + 9) / 10 * 10;
|
|
progress = DateUtils.formatElapsedTime(time);
|
|
status = getText(R.string.crypt_keeper_setup_time_remaining);
|
|
}
|
|
} catch (Exception e) {
|
|
// Will happen if no time etc - show percentage
|
|
}
|
|
|
|
final TextView tv = (TextView) findViewById(R.id.status);
|
|
if (tv != null) {
|
|
tv.setText(TextUtils.expandTemplate(status, progress));
|
|
}
|
|
|
|
// Check the progress every 1 seconds
|
|
mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS);
|
|
mHandler.sendEmptyMessageDelayed(MESSAGE_UPDATE_PROGRESS, 1000);
|
|
}
|
|
|
|
/** Insist on a power cycle to force the user to waste time between retries.
|
|
*
|
|
* Call setBackFunctionality(false) before calling this. */
|
|
private void cooldown() {
|
|
// Disable the password entry.
|
|
if (mPasswordEntry != null) {
|
|
mPasswordEntry.setEnabled(false);
|
|
}
|
|
if (mLockPatternView != null) {
|
|
mLockPatternView.setEnabled(false);
|
|
}
|
|
|
|
final TextView status = (TextView) findViewById(R.id.status);
|
|
status.setText(R.string.crypt_keeper_force_power_cycle);
|
|
}
|
|
|
|
/**
|
|
* Sets the back status: enabled or disabled according to the parameter.
|
|
* @param isEnabled true if back is enabled, false otherwise.
|
|
*/
|
|
private final void setBackFunctionality(boolean isEnabled) {
|
|
if (isEnabled) {
|
|
mStatusBar.disable(sWidgetsToDisable);
|
|
} else {
|
|
mStatusBar.disable(sWidgetsToDisable | StatusBarManager.DISABLE_BACK);
|
|
}
|
|
}
|
|
|
|
private void fakeUnlockAttempt(View postingView) {
|
|
beginAttempt();
|
|
postingView.postDelayed(mFakeUnlockAttemptRunnable, FAKE_ATTEMPT_DELAY);
|
|
}
|
|
|
|
protected LockPatternView.OnPatternListener mChooseNewLockPatternListener =
|
|
new LockPatternView.OnPatternListener() {
|
|
|
|
@Override
|
|
public void onPatternStart() {
|
|
mLockPatternView.removeCallbacks(mClearPatternRunnable);
|
|
}
|
|
|
|
@Override
|
|
public void onPatternCleared() {
|
|
}
|
|
|
|
@Override
|
|
public void onPatternDetected(List<LockPatternView.Cell> pattern) {
|
|
mLockPatternView.setEnabled(false);
|
|
if (pattern.size() >= MIN_LENGTH_BEFORE_REPORT) {
|
|
new DecryptTask().execute(new String(LockPatternUtils.patternToByteArray(pattern)));
|
|
} else {
|
|
// Allow user to make as many of these as they want.
|
|
fakeUnlockAttempt(mLockPatternView);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onPatternCellAdded(List<Cell> pattern) {
|
|
}
|
|
};
|
|
|
|
private void passwordEntryInit() {
|
|
// Password/pin case
|
|
mPasswordEntry = (ImeAwareEditText) findViewById(R.id.passwordEntry);
|
|
if (mPasswordEntry != null){
|
|
mPasswordEntry.setOnEditorActionListener(this);
|
|
mPasswordEntry.requestFocus();
|
|
// Become quiet when the user interacts with the Edit text screen.
|
|
mPasswordEntry.setOnKeyListener(this);
|
|
mPasswordEntry.setOnTouchListener(this);
|
|
mPasswordEntry.addTextChangedListener(this);
|
|
}
|
|
|
|
// Pattern case
|
|
mLockPatternView = (LockPatternView) findViewById(R.id.lockPattern);
|
|
if (mLockPatternView != null) {
|
|
mLockPatternView.setOnPatternListener(mChooseNewLockPatternListener);
|
|
}
|
|
|
|
// Disable the Emergency call button if the device has no voice telephone capability
|
|
if (!getTelephonyManager().isVoiceCapable()) {
|
|
final View emergencyCall = findViewById(R.id.emergencyCallButton);
|
|
if (emergencyCall != null) {
|
|
Log.d(TAG, "Removing the emergency Call button");
|
|
emergencyCall.setVisibility(View.GONE);
|
|
}
|
|
}
|
|
|
|
final View imeSwitcher = findViewById(R.id.switch_ime_button);
|
|
final InputMethodManager imm = (InputMethodManager) getSystemService(
|
|
Context.INPUT_METHOD_SERVICE);
|
|
if (imeSwitcher != null && hasMultipleEnabledIMEsOrSubtypes(imm, false)) {
|
|
imeSwitcher.setVisibility(View.VISIBLE);
|
|
imeSwitcher.setOnClickListener(new OnClickListener() {
|
|
@Override
|
|
public void onClick(View v) {
|
|
imm.showInputMethodPickerFromSystem(false /* showAuxiliarySubtypes */,
|
|
v.getDisplay().getDisplayId());
|
|
}
|
|
});
|
|
}
|
|
|
|
// We want to keep the screen on while waiting for input. In minimal boot mode, the device
|
|
// is completely non-functional, and we want the user to notice the device and enter a
|
|
// password.
|
|
if (mWakeLock == null) {
|
|
Log.d(TAG, "Acquiring wakelock.");
|
|
final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
|
|
if (pm != null) {
|
|
mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
|
|
mWakeLock.acquire();
|
|
// Keep awake for 10 minutes - if the user hasn't been alerted by then
|
|
// best not to just drain their battery
|
|
mReleaseWakeLockCountdown = 96; // 96 * 5 secs per click + 120 secs before we show this = 600
|
|
}
|
|
}
|
|
|
|
// Make sure that the IME is shown when everything becomes ready.
|
|
if (mLockPatternView == null && !mCooldown) {
|
|
getWindow().setSoftInputMode(
|
|
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
|
|
if (mPasswordEntry != null) {
|
|
mPasswordEntry.scheduleShowSoftInput();
|
|
}
|
|
}
|
|
|
|
updateEmergencyCallButtonState();
|
|
// Notify the user in 120 seconds that we are waiting for him to enter the password.
|
|
mHandler.removeMessages(MESSAGE_NOTIFY);
|
|
mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 120 * 1000);
|
|
|
|
// Dismiss secure & non-secure keyguards while this screen is showing.
|
|
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
|
|
| WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
|
|
}
|
|
|
|
/**
|
|
* Method adapted from com.android.inputmethod.latin.Utils
|
|
*
|
|
* @param imm The input method manager
|
|
* @param shouldIncludeAuxiliarySubtypes
|
|
* @return true if we have multiple IMEs to choose from
|
|
*/
|
|
private boolean hasMultipleEnabledIMEsOrSubtypes(InputMethodManager imm,
|
|
final boolean shouldIncludeAuxiliarySubtypes) {
|
|
final List<InputMethodInfo> enabledImis = imm.getEnabledInputMethodList();
|
|
|
|
// Number of the filtered IMEs
|
|
int filteredImisCount = 0;
|
|
|
|
for (InputMethodInfo imi : enabledImis) {
|
|
// We can return true immediately after we find two or more filtered IMEs.
|
|
if (filteredImisCount > 1) return true;
|
|
final List<InputMethodSubtype> subtypes =
|
|
imm.getEnabledInputMethodSubtypeList(imi, true);
|
|
// IMEs that have no subtypes should be counted.
|
|
if (subtypes.isEmpty()) {
|
|
++filteredImisCount;
|
|
continue;
|
|
}
|
|
|
|
int auxCount = 0;
|
|
for (InputMethodSubtype subtype : subtypes) {
|
|
if (subtype.isAuxiliary()) {
|
|
++auxCount;
|
|
}
|
|
}
|
|
final int nonAuxCount = subtypes.size() - auxCount;
|
|
|
|
// IMEs that have one or more non-auxiliary subtypes should be counted.
|
|
// If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary
|
|
// subtypes should be counted as well.
|
|
if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) {
|
|
++filteredImisCount;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return filteredImisCount > 1
|
|
// imm.getEnabledInputMethodSubtypeList(null, false) will return the current IME's enabled
|
|
// input method subtype (The current IME should be LatinIME.)
|
|
|| imm.getEnabledInputMethodSubtypeList(null, false).size() > 1;
|
|
}
|
|
|
|
private IStorageManager getStorageManager() {
|
|
final IBinder service = ServiceManager.getService("mount");
|
|
if (service != null) {
|
|
return IStorageManager.Stub.asInterface(service);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
@Override
|
|
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
|
|
if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE) {
|
|
// Get the password
|
|
final String password = v.getText().toString();
|
|
|
|
if (TextUtils.isEmpty(password)) {
|
|
return true;
|
|
}
|
|
|
|
// Now that we have the password clear the password field.
|
|
v.setText(null);
|
|
|
|
// Disable the password entry and back keypress while checking the password. These
|
|
// we either be re-enabled if the password was wrong or after the cooldown period.
|
|
mPasswordEntry.setEnabled(false);
|
|
setBackFunctionality(false);
|
|
|
|
if (password.length() >= LockPatternUtils.MIN_LOCK_PASSWORD_SIZE) {
|
|
new DecryptTask().execute(password);
|
|
} else {
|
|
// Allow user to make as many of these as they want.
|
|
fakeUnlockAttempt(mPasswordEntry);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Set airplane mode on the device if it isn't an LTE device.
|
|
* Full story: In minimal boot mode, we cannot save any state. In particular, we cannot save
|
|
* any incoming SMS's. So SMSs that are received here will be silently dropped to the floor.
|
|
* That is bad. Also, we cannot receive any telephone calls in this state. So to avoid
|
|
* both these problems, we turn the radio off. However, on certain networks turning on and
|
|
* off the radio takes a long time. In such cases, we are better off leaving the radio
|
|
* running so the latency of an E911 call is short.
|
|
* The behavior after this is:
|
|
* 1. Emergency dialing: the emergency dialer has logic to force the device out of
|
|
* airplane mode and restart the radio.
|
|
* 2. Full boot: we read the persistent settings from the previous boot and restore the
|
|
* radio to whatever it was before it restarted. This also happens when rebooting a
|
|
* phone that has no encryption.
|
|
*/
|
|
private final void setAirplaneModeIfNecessary() {
|
|
if (!getTelephonyManager().isLteCdmaEvdoGsmWcdmaEnabled()) {
|
|
Log.d(TAG, "Going into airplane mode.");
|
|
Settings.Global.putInt(getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 1);
|
|
final Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
|
|
intent.putExtra("state", true);
|
|
sendBroadcastAsUser(intent, UserHandle.ALL);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Code to update the state of, and handle clicks from, the "Emergency call" button.
|
|
*
|
|
* This code is mostly duplicated from the corresponding code in
|
|
* LockPatternUtils and LockPatternKeyguardView under frameworks/base.
|
|
*/
|
|
private void updateEmergencyCallButtonState() {
|
|
final Button emergencyCall = (Button) findViewById(R.id.emergencyCallButton);
|
|
// The button isn't present at all in some configurations.
|
|
if (emergencyCall == null)
|
|
return;
|
|
|
|
if (isEmergencyCallCapable()) {
|
|
emergencyCall.setVisibility(View.VISIBLE);
|
|
emergencyCall.setOnClickListener(new View.OnClickListener() {
|
|
@Override
|
|
|
|
public void onClick(View v) {
|
|
takeEmergencyCallAction();
|
|
}
|
|
});
|
|
} else {
|
|
emergencyCall.setVisibility(View.GONE);
|
|
return;
|
|
}
|
|
|
|
int textId;
|
|
if (getTelecomManager().isInCall()) {
|
|
// Show "return to call"
|
|
textId = R.string.cryptkeeper_return_to_call;
|
|
} else {
|
|
textId = R.string.cryptkeeper_emergency_call;
|
|
}
|
|
emergencyCall.setText(textId);
|
|
}
|
|
|
|
private boolean isEmergencyCallCapable() {
|
|
return getTelephonyManager().isVoiceCapable();
|
|
}
|
|
|
|
private void takeEmergencyCallAction() {
|
|
TelecomManager telecomManager = getTelecomManager();
|
|
if (telecomManager.isInCall()) {
|
|
telecomManager.showInCallScreen(false /* showDialpad */);
|
|
} else {
|
|
launchEmergencyDialer();
|
|
}
|
|
}
|
|
|
|
|
|
private void launchEmergencyDialer() {
|
|
final Intent intent = new Intent(ACTION_EMERGENCY_DIAL);
|
|
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
|
|
| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
|
|
setBackFunctionality(true);
|
|
startActivity(intent);
|
|
}
|
|
|
|
private TelephonyManager getTelephonyManager() {
|
|
return (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
|
|
}
|
|
|
|
private TelecomManager getTelecomManager() {
|
|
return (TelecomManager) getSystemService(Context.TELECOM_SERVICE);
|
|
}
|
|
|
|
/**
|
|
* Listen to key events so we can disable sounds when we get a keyinput in EditText.
|
|
*/
|
|
private void delayAudioNotification() {
|
|
mNotificationCountdown = 20;
|
|
}
|
|
|
|
@Override
|
|
public boolean onKey(View v, int keyCode, KeyEvent event) {
|
|
delayAudioNotification();
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public boolean onTouch(View v, MotionEvent event) {
|
|
delayAudioNotification();
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
|
|
return;
|
|
}
|
|
|
|
@Override
|
|
public void onTextChanged(CharSequence s, int start, int before, int count) {
|
|
delayAudioNotification();
|
|
}
|
|
|
|
@Override
|
|
public void afterTextChanged(Editable s) {
|
|
return;
|
|
}
|
|
|
|
private static void disableCryptKeeperComponent(Context context) {
|
|
PackageManager pm = context.getPackageManager();
|
|
ComponentName name = new ComponentName(context, CryptKeeper.class);
|
|
Log.d(TAG, "Disabling component " + name);
|
|
pm.setComponentEnabledSetting(name, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
|
|
PackageManager.DONT_KILL_APP);
|
|
}
|
|
}
|