CryptKeeper.java revision c04420ce2581627478b59cc5d8b453f1fa329e02
18fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks/*
28fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * Copyright (C) 2011 The Android Open Source Project
38fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks *
48fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * Licensed under the Apache License, Version 2.0 (the "License");
58fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * you may not use this file except in compliance with the License.
68fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * You may obtain a copy of the License at
78fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks *
88fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks *      http://www.apache.org/licenses/LICENSE-2.0
98fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks *
108fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * Unless required by applicable law or agreed to in writing, software
118fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * distributed under the License is distributed on an "AS IS" BASIS,
128fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
138fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * See the License for the specific language governing permissions and
148fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks * limitations under the License.
158fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks */
168fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
178fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parkspackage com.android.settings;
188fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
198fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.app.Activity;
208fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.app.StatusBarManager;
218fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.content.ComponentName;
228fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.content.Context;
23ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.content.Intent;
247ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrenceimport android.content.pm.ActivityInfo;
258fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.content.pm.PackageManager;
267ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrenceimport android.content.res.Resources.NotFoundException;
27de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwalimport android.media.AudioManager;
2806c5ff4a46686d3f599e40df0768177d3d88913cJason parksimport android.os.AsyncTask;
298fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.Bundle;
30ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.os.Handler;
318fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.IBinder;
32ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.os.Message;
3335933812b16f0b4221280bbcc3c32f6540996bf2Jason parksimport android.os.PowerManager;
348373b451692a39abdfd12444241c016831e1a4a4David Brownimport android.os.RemoteException;
358fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.ServiceManager;
368fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.SystemProperties;
376a5929b086a61a955a4a2f43f5fa251e8754ff4aChristopher Tateimport android.os.UserHandle;
388fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.os.storage.IMountService;
39b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrenceimport android.os.storage.StorageManager;
406ebbd30e18ca514ca9ee87ffa428c55c9fd92a8cVikram Aggarwalimport android.provider.Settings;
413e71b197f7f85c5045a083ecc532954958807be6Tyler Gunnimport android.telecom.TelecomManager;
428373b451692a39abdfd12444241c016831e1a4a4David Brownimport android.telephony.TelephonyManager;
43d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwalimport android.text.Editable;
44ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.text.TextUtils;
45d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwalimport android.text.TextWatcher;
46b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrenceimport android.text.format.DateUtils;
478fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.util.Log;
488fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.view.KeyEvent;
49d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwalimport android.view.MotionEvent;
5013d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadlerimport android.view.View;
5113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadlerimport android.view.View.OnClickListener;
52d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwalimport android.view.View.OnKeyListener;
53d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwalimport android.view.View.OnTouchListener;
5419280af592876d1fe7acd4120eb93390c089641cFyodor Kupolovimport android.view.WindowManager;
558fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.view.inputmethod.EditorInfo;
569fcb6a7fac02aef85085c2db616556257e1642f5Ben Komaloimport android.view.inputmethod.InputMethodInfo;
5775c085ee890744cdd4b90c72f8b50e6aeeb31e88Jason parksimport android.view.inputmethod.InputMethodManager;
589fcb6a7fac02aef85085c2db616556257e1642f5Ben Komaloimport android.view.inputmethod.InputMethodSubtype;
5913d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadlerimport android.widget.Button;
60ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.widget.EditText;
61ec5a45e79cb7161adfabf475342c1e1b25994276Jason parksimport android.widget.ProgressBar;
628fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parksimport android.widget.TextView;
638fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
645543404ae0ec9635b59d37fa01074ea598d539ebWink Savilleimport com.android.internal.telephony.PhoneConstants;
65b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrenceimport com.android.internal.widget.LockPatternUtils;
66b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrenceimport com.android.internal.widget.LockPatternView;
67b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrenceimport com.android.internal.widget.LockPatternView.Cell;
689fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
699fcb6a7fac02aef85085c2db616556257e1642f5Ben Komaloimport java.util.List;
7091a2f0566afb91549cbda9289b516154a6467624Ben Komalo
7119280af592876d1fe7acd4120eb93390c089641cFyodor Kupolovimport static com.android.internal.widget.LockPatternView.DisplayMode;
7219280af592876d1fe7acd4120eb93390c089641cFyodor Kupolov
7391a2f0566afb91549cbda9289b516154a6467624Ben Komalo/**
7491a2f0566afb91549cbda9289b516154a6467624Ben Komalo * Settings screens to show the UI flows for encrypting/decrypting the device.
7591a2f0566afb91549cbda9289b516154a6467624Ben Komalo *
7691a2f0566afb91549cbda9289b516154a6467624Ben Komalo * This may be started via adb for debugging the UI layout, without having to go through
7791a2f0566afb91549cbda9289b516154a6467624Ben Komalo * encryption flows everytime. It should be noted that starting the activity in this manner
7891a2f0566afb91549cbda9289b516154a6467624Ben Komalo * is only useful for verifying UI-correctness - the behavior will not be identical.
7991a2f0566afb91549cbda9289b516154a6467624Ben Komalo * <pre>
8091a2f0566afb91549cbda9289b516154a6467624Ben Komalo * $ adb shell pm enable com.android.settings/.CryptKeeper
8191a2f0566afb91549cbda9289b516154a6467624Ben Komalo * $ adb shell am start \
8291a2f0566afb91549cbda9289b516154a6467624Ben Komalo *     -e "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW" "progress" \
8391a2f0566afb91549cbda9289b516154a6467624Ben Komalo *     -n com.android.settings/.CryptKeeper
8491a2f0566afb91549cbda9289b516154a6467624Ben Komalo * </pre>
8591a2f0566afb91549cbda9289b516154a6467624Ben Komalo */
86d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwalpublic class CryptKeeper extends Activity implements TextView.OnEditorActionListener,
87d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        OnKeyListener, OnTouchListener, TextWatcher {
88ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks    private static final String TAG = "CryptKeeper";
8935933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
908fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    private static final String DECRYPT_STATE = "trigger_restart_framework";
9151e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley
92de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    /** Message sent to us to indicate encryption update progress. */
93de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    private static final int MESSAGE_UPDATE_PROGRESS = 1;
94de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    /** Message sent to us to indicate alerting the user that we are waiting for password entry */
9551e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley    private static final int MESSAGE_NOTIFY = 2;
96de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal
97de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    // Constants used to control policy.
9813b8b564f83c9520358647c54ec5b0f890829d0ePaul Crowley    private static final int MAX_FAILED_ATTEMPTS = 30;
99ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks    private static final int COOL_DOWN_ATTEMPTS = 10;
100ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks
1018373b451692a39abdfd12444241c016831e1a4a4David Brown    // Intent action for launching the Emergency Dialer activity.
1028373b451692a39abdfd12444241c016831e1a4a4David Brown    static final String ACTION_EMERGENCY_DIAL = "com.android.phone.EmergencyDialer.DIAL";
1038373b451692a39abdfd12444241c016831e1a4a4David Brown
10491a2f0566afb91549cbda9289b516154a6467624Ben Komalo    // Debug Intent extras so that this Activity may be started via adb for debugging UI layouts
10591a2f0566afb91549cbda9289b516154a6467624Ben Komalo    private static final String EXTRA_FORCE_VIEW =
10691a2f0566afb91549cbda9289b516154a6467624Ben Komalo            "com.android.settings.CryptKeeper.DEBUG_FORCE_VIEW";
10791a2f0566afb91549cbda9289b516154a6467624Ben Komalo    private static final String FORCE_VIEW_PROGRESS = "progress";
10891a2f0566afb91549cbda9289b516154a6467624Ben Komalo    private static final String FORCE_VIEW_ERROR = "error";
109de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    private static final String FORCE_VIEW_PASSWORD = "password";
11091a2f0566afb91549cbda9289b516154a6467624Ben Komalo
111bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal    /** When encryption is detected, this flag indicates whether or not we've checked for errors. */
1120e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    private boolean mValidationComplete;
113d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo    private boolean mValidationRequested;
1140e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    /** A flag to indicate that the volume is in a bad state (e.g. partially encrypted). */
1150e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    private boolean mEncryptionGoneBad;
11687abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence    /** If gone bad, should we show encryption failed (false) or corrupt (true)*/
11787abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence    private boolean mCorrupt;
118de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    /** A flag to indicate when the back event should be ignored */
119de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    private boolean mIgnoreBack = false;
12051e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley    /** When set, blocks unlocking. Set every COOL_DOWN_ATTEMPTS attempts, only cleared
12151e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        by power cycling phone. */
12251e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley    private boolean mCooldown = false;
12351e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley
1241499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    PowerManager.WakeLock mWakeLock;
12506c5ff4a46686d3f599e40df0768177d3d88913cJason parks    private EditText mPasswordEntry;
126b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence    private LockPatternView mLockPatternView;
127d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    /** Number of calls to {@link #notifyUser()} to ignore before notifying. */
128d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    private int mNotificationCountdown = 0;
12973456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence    /** Number of calls to {@link #notifyUser()} before we release the wakelock */
13073456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence    private int mReleaseWakeLockCountdown = 0;
1315a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence    private int mStatusString = R.string.enter_password;
1321499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler
133f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence    // how long we wait to clear a wrong pattern
134f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence    private static final int WRONG_PATTERN_CLEAR_TIMEOUT_MS = 1500;
135f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence
1360f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence    // how long we wait to clear a right pattern
1370f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence    private static final int RIGHT_PATTERN_CLEAR_TIMEOUT_MS = 500;
1380f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence
1392555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    // When the user enters a short pin/password, run this to show an error,
1402555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    // but don't count it against attempts.
1412555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    private final Runnable mFakeUnlockAttemptRunnable = new Runnable() {
14251e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        @Override
1432555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        public void run() {
1442555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            handleBadAttempt(1 /* failedAttempt */);
1452555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        }
1462555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    };
1472555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
1482555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    // TODO: this should be tuned to match minimum decryption timeout
1492555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    private static final int FAKE_ATTEMPT_DELAY = 1000;
1502555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
1512555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    private final Runnable mClearPatternRunnable = new Runnable() {
152529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley        @Override
153f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        public void run() {
154f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence            mLockPatternView.clearPattern();
155f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        }
156f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence    };
157f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence
1581499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    /**
1591499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler     * Used to propagate state through configuration changes (e.g. screen rotation)
1601499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler     */
1611499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    private static class NonConfigurationInstanceState {
1621499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        final PowerManager.WakeLock wakelock;
1631499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler
1641499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        NonConfigurationInstanceState(PowerManager.WakeLock _wakelock) {
1651499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler            wakelock = _wakelock;
1661499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        }
1671499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    }
1681499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler
16906c5ff4a46686d3f599e40df0768177d3d88913cJason parks    private class DecryptTask extends AsyncTask<String, Void, Integer> {
170ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence        private void hide(int id) {
171ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence            View view = findViewById(id);
172ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence            if (view != null) {
173ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence                view.setVisibility(View.GONE);
174ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence            }
175ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence        }
176ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence
17706c5ff4a46686d3f599e40df0768177d3d88913cJason parks        @Override
178529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley        protected void onPreExecute() {
179529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley            super.onPreExecute();
1802555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            beginAttempt();
181529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley        }
182529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley
183529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley        @Override
18406c5ff4a46686d3f599e40df0768177d3d88913cJason parks        protected Integer doInBackground(String... params) {
185de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            final IMountService service = getMountService();
18606c5ff4a46686d3f599e40df0768177d3d88913cJason parks            try {
18706c5ff4a46686d3f599e40df0768177d3d88913cJason parks                return service.decryptStorage(params[0]);
18806c5ff4a46686d3f599e40df0768177d3d88913cJason parks            } catch (Exception e) {
18906c5ff4a46686d3f599e40df0768177d3d88913cJason parks                Log.e(TAG, "Error while decrypting...", e);
19006c5ff4a46686d3f599e40df0768177d3d88913cJason parks                return -1;
19106c5ff4a46686d3f599e40df0768177d3d88913cJason parks            }
19206c5ff4a46686d3f599e40df0768177d3d88913cJason parks        }
19306c5ff4a46686d3f599e40df0768177d3d88913cJason parks
19406c5ff4a46686d3f599e40df0768177d3d88913cJason parks        @Override
19506c5ff4a46686d3f599e40df0768177d3d88913cJason parks        protected void onPostExecute(Integer failedAttempts) {
19606c5ff4a46686d3f599e40df0768177d3d88913cJason parks            if (failedAttempts == 0) {
19789c7570dd42ce6945ce8e092892a22ec79c30c82Paul Lawrence                // The password was entered successfully. Simply do nothing
19889c7570dd42ce6945ce8e092892a22ec79c30c82Paul Lawrence                // and wait for the service restart to switch to surfacefligner
1990f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                if (mLockPatternView != null) {
2000f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                    mLockPatternView.removeCallbacks(mClearPatternRunnable);
2010f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                    mLockPatternView.postDelayed(mClearPatternRunnable, RIGHT_PATTERN_CLEAR_TIMEOUT_MS);
2020f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                }
203529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley                final TextView status = (TextView) findViewById(R.id.status);
204529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley                status.setText(R.string.starting_android);
205ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence                hide(R.id.passwordEntry);
206ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence                hide(R.id.switch_ime_button);
207ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence                hide(R.id.lockPattern);
208ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence                hide(R.id.owner_info);
209ced7db460f472a288255f6f75302381356eb9de8Paul Lawrence                hide(R.id.emergencyCallButton);
21006c5ff4a46686d3f599e40df0768177d3d88913cJason parks            } else if (failedAttempts == MAX_FAILED_ATTEMPTS) {
21106c5ff4a46686d3f599e40df0768177d3d88913cJason parks                // Factory reset the device.
2121de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                Intent intent = new Intent(Intent.ACTION_MASTER_CLEAR);
2131de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
2141de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                intent.putExtra(Intent.EXTRA_REASON, "CryptKeeper.MAX_FAILED_ATTEMPTS");
2151de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                sendBroadcast(intent);
216384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence            } else if (failedAttempts == -1) {
217384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence                // Right password, but decryption failed. Tell user bad news ...
218384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence                setContentView(R.layout.crypt_keeper_progress);
219384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence                showFactoryReset(true);
220384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence                return;
22106c5ff4a46686d3f599e40df0768177d3d88913cJason parks            } else {
2222555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                handleBadAttempt(failedAttempts);
2232555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            }
2242555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        }
2252555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    }
226bd4c3210e1e0d6f58b2a5857032a2dacb316be98Paul Lawrence
2272555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    private void beginAttempt() {
2282555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        final TextView status = (TextView) findViewById(R.id.status);
2292555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        status.setText(R.string.checking_decryption);
2302555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    }
231bd4c3210e1e0d6f58b2a5857032a2dacb316be98Paul Lawrence
2322555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    private void handleBadAttempt(Integer failedAttempts) {
2332555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        // Wrong entry. Handle pattern case.
2342555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        if (mLockPatternView != null) {
2352555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            mLockPatternView.setDisplayMode(DisplayMode.Wrong);
2362555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            mLockPatternView.removeCallbacks(mClearPatternRunnable);
2372555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            mLockPatternView.postDelayed(mClearPatternRunnable, WRONG_PATTERN_CLEAR_TIMEOUT_MS);
2382555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        }
2392555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        if ((failedAttempts % COOL_DOWN_ATTEMPTS) == 0) {
24051e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley            mCooldown = true;
24151e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley            // No need to setBackFunctionality(false) - it's already done
24251e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley            // at this point.
2432555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            cooldown();
2442555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        } else {
2452555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            final TextView status = (TextView) findViewById(R.id.status);
246529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley
2472555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            int remainingAttempts = MAX_FAILED_ATTEMPTS - failedAttempts;
2482555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            if (remainingAttempts < COOL_DOWN_ATTEMPTS) {
2492555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                CharSequence warningTemplate = getText(R.string.crypt_keeper_warn_wipe);
2502555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                CharSequence warning = TextUtils.expandTemplate(warningTemplate,
2512555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                        Integer.toString(remainingAttempts));
2522555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                status.setText(warning);
2532555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            } else {
2542555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                int passwordType = StorageManager.CRYPT_TYPE_PASSWORD;
2552555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                try {
2562555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                    final IMountService service = getMountService();
2572555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                    passwordType = service.getPasswordType();
2582555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                } catch (Exception e) {
2592555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                    Log.e(TAG, "Error calling mount service " + e);
2602555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                }
2612555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
2622555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                if (passwordType == StorageManager.CRYPT_TYPE_PIN) {
2632555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                    status.setText(R.string.cryptkeeper_wrong_pin);
2642555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                } else if (passwordType == StorageManager.CRYPT_TYPE_PATTERN) {
2652555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                    status.setText(R.string.cryptkeeper_wrong_pattern);
2662555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                } else {
2672555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                    status.setText(R.string.cryptkeeper_wrong_password);
2682daf2641d364683c21bcbae08a3358d0f3c6af94Paul Lawrence                }
26906c5ff4a46686d3f599e40df0768177d3d88913cJason parks            }
2702555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
2712555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            if (mLockPatternView != null) {
2722555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                mLockPatternView.setDisplayMode(DisplayMode.Wrong);
2732555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                mLockPatternView.setEnabled(true);
2742555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            }
2752555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
2762555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            // Reenable the password entry
2772555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            if (mPasswordEntry != null) {
2782555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                mPasswordEntry.setEnabled(true);
2792555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                final InputMethodManager imm = (InputMethodManager) getSystemService(
2802555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                        Context.INPUT_METHOD_SERVICE);
2812555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                imm.showSoftInput(mPasswordEntry, 0);
2822555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                setBackFunctionality(true);
2832555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            }
28406c5ff4a46686d3f599e40df0768177d3d88913cJason parks        }
28506c5ff4a46686d3f599e40df0768177d3d88913cJason parks    }
28675c085ee890744cdd4b90c72f8b50e6aeeb31e88Jason parks
2870e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    private class ValidationTask extends AsyncTask<Void, Void, Boolean> {
28887abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence        int state;
28987abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence
2900e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        @Override
2910e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        protected Boolean doInBackground(Void... params) {
292de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            final IMountService service = getMountService();
2930e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            try {
294d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo                Log.d(TAG, "Validating encryption state.");
29587abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence                state = service.getEncryptionState();
2960e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                if (state == IMountService.ENCRYPTION_STATE_NONE) {
2970e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                    Log.w(TAG, "Unexpectedly in CryptKeeper even though there is no encryption.");
2980e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                    return true; // Unexpected, but fine, I guess...
2990e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                }
3000e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                return state == IMountService.ENCRYPTION_STATE_OK;
3010e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            } catch (RemoteException e) {
3020e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                Log.w(TAG, "Unable to get encryption state properly");
3030e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                return true;
3040e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            }
3050e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        }
3060e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo
3070e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        @Override
3080e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        protected void onPostExecute(Boolean result) {
3090e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            mValidationComplete = true;
3100e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            if (Boolean.FALSE.equals(result)) {
3110e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                Log.w(TAG, "Incomplete, or corrupted encryption detected. Prompting user to wipe.");
3120e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo                mEncryptionGoneBad = true;
31387abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence                mCorrupt = state == IMountService.ENCRYPTION_STATE_ERROR_CORRUPT;
314d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo            } else {
315d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo                Log.d(TAG, "Encryption state validated. Proceeding to configure UI");
3160e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            }
3170e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            setupUi();
3180e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        }
3190e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    }
3200e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo
32191a2f0566afb91549cbda9289b516154a6467624Ben Komalo    private final Handler mHandler = new Handler() {
322ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks        @Override
323ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks        public void handleMessage(Message msg) {
324ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks            switch (msg.what) {
325de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            case MESSAGE_UPDATE_PROGRESS:
326f8217304073b5cd13823a0602568394be93bf310Jason parks                updateProgress();
327ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks                break;
32835933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
329de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            case MESSAGE_NOTIFY:
330de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                notifyUser();
331de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                break;
332ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks            }
333ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks        }
334ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks    };
33535933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
336de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    private AudioManager mAudioManager;
337bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    /** The status bar where back/home/recent buttons are shown. */
338bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    private StatusBarManager mStatusBar;
339bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal
340bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    /** All the widgets to disable in the status bar */
341bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    final private static int sWidgetsToDisable = StatusBarManager.DISABLE_EXPAND
342bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            | StatusBarManager.DISABLE_NOTIFICATION_ICONS
343bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            | StatusBarManager.DISABLE_NOTIFICATION_ALERTS
344bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            | StatusBarManager.DISABLE_SYSTEM_INFO
345bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            | StatusBarManager.DISABLE_HOME
34666d050bb4b6bf899e363f3e67d1eb5774de744b5Alon Albert            | StatusBarManager.DISABLE_SEARCH
347bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            | StatusBarManager.DISABLE_RECENT;
348de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal
3492555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    protected static final int MIN_LENGTH_BEFORE_REPORT = LockPatternUtils.MIN_LOCK_PATTERN_SIZE;
3502555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
35191a2f0566afb91549cbda9289b516154a6467624Ben Komalo    /** @return whether or not this Activity was started for debugging the UI only. */
35291a2f0566afb91549cbda9289b516154a6467624Ben Komalo    private boolean isDebugView() {
35391a2f0566afb91549cbda9289b516154a6467624Ben Komalo        return getIntent().hasExtra(EXTRA_FORCE_VIEW);
35491a2f0566afb91549cbda9289b516154a6467624Ben Komalo    }
35591a2f0566afb91549cbda9289b516154a6467624Ben Komalo
35691a2f0566afb91549cbda9289b516154a6467624Ben Komalo    /** @return whether or not this Activity was started for debugging the specific UI view only. */
35791a2f0566afb91549cbda9289b516154a6467624Ben Komalo    private boolean isDebugView(String viewType /* non-nullable */) {
35891a2f0566afb91549cbda9289b516154a6467624Ben Komalo        return viewType.equals(getIntent().getStringExtra(EXTRA_FORCE_VIEW));
35991a2f0566afb91549cbda9289b516154a6467624Ben Komalo    }
36091a2f0566afb91549cbda9289b516154a6467624Ben Komalo
361de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    /**
362de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     * Notify the user that we are awaiting input. Currently this sends an audio alert.
363de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     */
364de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    private void notifyUser() {
365d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        if (mNotificationCountdown > 0) {
366d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal            --mNotificationCountdown;
367d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        } else if (mAudioManager != null) {
368de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            try {
369de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                // Play the standard keypress sound at full volume. This should be available on
370de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                // every device. We cannot play a ringtone here because media services aren't
371de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                // available yet. A DTMF-style tone is too soft to be noticed, and might not exist
372de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                // on tablet devices. The idea is to alert the user that something is needed: this
373de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                // does not have to be pleasing.
374de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                mAudioManager.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD, 100);
375de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            } catch (Exception e) {
376de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                Log.w(TAG, "notifyUser: Exception while playing sound: " + e);
377de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            }
378de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        }
37986b93937fa417647d22ee15d3a0aff7a751be17aVikram Aggarwal        // Notify the user again in 5 seconds.
380de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        mHandler.removeMessages(MESSAGE_NOTIFY);
38186b93937fa417647d22ee15d3a0aff7a751be17aVikram Aggarwal        mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 5 * 1000);
38273456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence
38373456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence        if (mWakeLock.isHeld()) {
38473456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence            if (mReleaseWakeLockCountdown > 0) {
38573456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence                --mReleaseWakeLockCountdown;
38673456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence            } else {
38773456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence                mWakeLock.release();
38873456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence            }
38973456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence        }
390de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    }
391de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal
392de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    /**
393de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     * Ignore back events after the user has entered the decrypt screen and while the device is
394de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     * encrypting.
395de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     */
396de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    @Override
397de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    public void onBackPressed() {
398bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        // In the rare case that something pressed back even though we were disabled.
399de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        if (mIgnoreBack)
400de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            return;
401de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        super.onBackPressed();
402de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    }
403de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal
4048fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    @Override
4058fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    public void onCreate(Bundle savedInstanceState) {
4068fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        super.onCreate(savedInstanceState);
40735933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
4089597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler        // If we are not encrypted or encrypting, get out quickly.
409de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        final String state = SystemProperties.get("vold.decrypt");
41091a2f0566afb91549cbda9289b516154a6467624Ben Komalo        if (!isDebugView() && ("".equals(state) || DECRYPT_STATE.equals(state))) {
4111b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov            disableCryptKeeperComponent(this);
412140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn            // Typically CryptKeeper is launched as the home app.  We didn't
413644fa4243b4c288c85845b3f86aab25135635729Dianne Hackborn            // want to be running, so need to finish this activity.  We can count
414644fa4243b4c288c85845b3f86aab25135635729Dianne Hackborn            // on the activity manager re-launching the new home app upon finishing
415644fa4243b4c288c85845b3f86aab25135635729Dianne Hackborn            // this one, since this will leave the activity stack empty.
416140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn            // NOTE: This is really grungy.  I think it would be better for the
417140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn            // activity manager to explicitly launch the crypt keeper instead of
418140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn            // home in the situation where we need to decrypt the device
419140f6c6cf705f020c0ee6a2843cf1691cc68e729Dianne Hackborn            finish();
4208fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks            return;
4218fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        }
42235933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
4237ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence        try {
4247ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence            if (getResources().getBoolean(R.bool.crypt_keeper_allow_rotation)) {
4257ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence                setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
4267ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence            }
4277ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence        } catch (NotFoundException e) {
4287ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence        }
4297ae20e3ce98543888cfccbef6b1254d060bc30caPaul Lawrence
430b96b35a62b1f092b6322643c3568f3e712543e53Vikram Aggarwal        // Disable the status bar, but do NOT disable back because the user needs a way to go
431b96b35a62b1f092b6322643c3568f3e712543e53Vikram Aggarwal        // from keyboard settings and back to the password screen.
432bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        mStatusBar = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE);
433bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        mStatusBar.disable(sWidgetsToDisable);
4341499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler
435ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal        setAirplaneModeIfNecessary();
436de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
4371499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        // Check for (and recover) retained instance data
438de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        final Object lastInstance = getLastNonConfigurationInstance();
4391499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        if (lastInstance instanceof NonConfigurationInstanceState) {
4401499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler            NonConfigurationInstanceState retained = (NonConfigurationInstanceState) lastInstance;
4411499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler            mWakeLock = retained.wakelock;
4420460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo            Log.d(TAG, "Restoring wakelock from NonConfigurationInstanceState");
4431499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        }
444ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks    }
44535933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
4469597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler    /**
4479597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler     * Note, we defer the state check and screen setup to onStart() because this will be
4489597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler     * re-run if the user clicks the power button (sleeping/waking the screen), and this is
4499597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler     * especially important if we were to lose the wakelock for any reason.
4509597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler     */
4519597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler    @Override
4529597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler    public void onStart() {
4539597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler        super.onStart();
454d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo        setupUi();
4550e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    }
4560e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo
4570e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    /**
4580e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo     * Initializes the UI based on the current state of encryption.
4590e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo     * This is idempotent - calling repeatedly will simply re-initialize the UI.
4600e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo     */
4610e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo    private void setupUi() {
4620e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        if (mEncryptionGoneBad || isDebugView(FORCE_VIEW_ERROR)) {
4630e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            setContentView(R.layout.crypt_keeper_progress);
46487abbd3ea06a4901a4a967ce01e9fded356ae75fPaul Lawrence            showFactoryReset(mCorrupt);
4650e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo            return;
4660e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        }
4670e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo
468de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        final String progress = SystemProperties.get("vold.encrypt_progress");
4690e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        if (!"".equals(progress) || isDebugView(FORCE_VIEW_PROGRESS)) {
4709597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler            setContentView(R.layout.crypt_keeper_progress);
4719597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler            encryptionProgressInit();
472de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        } else if (mValidationComplete || isDebugView(FORCE_VIEW_PASSWORD)) {
4739ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence            new AsyncTask<Void, Void, Void>() {
474529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley                int passwordType = StorageManager.CRYPT_TYPE_PASSWORD;
4759ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                String owner_info;
4760f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                boolean pattern_visible;
477c04420ce2581627478b59cc5d8b453f1fa329e02Paul Lawrence                boolean password_visible;
4789ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence
4799ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                @Override
4809ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                public Void doInBackground(Void... v) {
4819ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    try {
4829ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                        final IMountService service = getMountService();
483529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley                        passwordType = service.getPasswordType();
484f9d6d2916323472f6c543edcc3956a8d00925e6bElliott Hughes                        owner_info = service.getField(StorageManager.OWNER_INFO_KEY);
485f9d6d2916323472f6c543edcc3956a8d00925e6bElliott Hughes                        pattern_visible = !("0".equals(service.getField(StorageManager.PATTERN_VISIBLE_KEY)));
486c04420ce2581627478b59cc5d8b453f1fa329e02Paul Lawrence                        password_visible = !("0".equals(service.getField(StorageManager.PASSWORD_VISIBLE_KEY)));
4879ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    } catch (Exception e) {
4889ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                        Log.e(TAG, "Error calling mount service " + e);
4899ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    }
4909ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence
4919ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    return null;
4929ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                }
493b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
4949ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                @Override
4959ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                public void onPostExecute(java.lang.Void v) {
496c04420ce2581627478b59cc5d8b453f1fa329e02Paul Lawrence                    Settings.System.putInt(getContentResolver(), Settings.System.TEXT_SHOW_PASSWORD,
497c04420ce2581627478b59cc5d8b453f1fa329e02Paul Lawrence                                  password_visible ? 1 : 0);
498c04420ce2581627478b59cc5d8b453f1fa329e02Paul Lawrence
49951e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley                    if (passwordType == StorageManager.CRYPT_TYPE_PIN) {
5009ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                        setContentView(R.layout.crypt_keeper_pin_entry);
5015a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                        mStatusString = R.string.enter_pin;
502529834dae1ce469d64f7e191db43315e88691e7ePaul Crowley                    } else if (passwordType == StorageManager.CRYPT_TYPE_PATTERN) {
5039ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                        setContentView(R.layout.crypt_keeper_pattern_entry);
5049ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                        setBackFunctionality(false);
5055a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                        mStatusString = R.string.enter_pattern;
5069ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    } else {
5079ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                        setContentView(R.layout.crypt_keeper_password_entry);
5085a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                        mStatusString = R.string.enter_password;
5099ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    }
5105a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                    final TextView status = (TextView) findViewById(R.id.status);
5115a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                    status.setText(mStatusString);
5125a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence
5135a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                    final TextView ownerInfo = (TextView) findViewById(R.id.owner_info);
5145a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                    ownerInfo.setText(owner_info);
5155a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                    ownerInfo.setSelected(true); // Required for marquee'ing to work
5169ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence
5179ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                    passwordEntryInit();
5185a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence
5190f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                    if (mLockPatternView != null) {
5200f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                        mLockPatternView.setInStealthMode(!pattern_visible);
5210f11e15f503d65d5a085157d8ec406a72d712ce7Paul Lawrence                    }
52251e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley                    if (mCooldown) {
52351e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley                        // in case we are cooling down and coming back from emergency dialler
5245a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                        setBackFunctionality(false);
52551e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley                        cooldown();
5265a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                    }
52751e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley
5289ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence                }
5299ac2d81d9fd155240e02284894148c6dcbe486ecPaul Lawrence            }.execute();
530d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo        } else if (!mValidationRequested) {
531d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo            // We're supposed to be encrypted, but no validation has been done.
532d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo            new ValidationTask().execute((Void[]) null);
533d4758efef6d6564d7b4b0b747d0a9ae9b44a38c7Ben Komalo            mValidationRequested = true;
5349597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler        }
5359597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler    }
5369597406aa1b83867b03a47d1a5162969b924f2fcAndy Stadler
537f8217304073b5cd13823a0602568394be93bf310Jason parks    @Override
538f8217304073b5cd13823a0602568394be93bf310Jason parks    public void onStop() {
539f8217304073b5cd13823a0602568394be93bf310Jason parks        super.onStop();
540de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS);
541de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        mHandler.removeMessages(MESSAGE_NOTIFY);
5421499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    }
5431499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler
5441499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    /**
5451499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler     * Reconfiguring, so propagate the wakelock to the next instance.  This runs between onStop()
5461499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler     * and onDestroy() and only if we are changing configuration (e.g. rotation).  Also clears
5471499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler     * mWakeLock so the subsequent call to onDestroy does not release it.
5481499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler     */
5491499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    @Override
5501499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    public Object onRetainNonConfigurationInstance() {
5511499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        NonConfigurationInstanceState state = new NonConfigurationInstanceState(mWakeLock);
5520460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo        Log.d(TAG, "Handing wakelock off to NonConfigurationInstanceState");
5531499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        mWakeLock = null;
5541499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        return state;
5551499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    }
5561499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler
5571499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    @Override
5581499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler    public void onDestroy() {
5591499740c13af5fbd5766a87825c3e789b37bab24Andy Stadler        super.onDestroy();
560f8217304073b5cd13823a0602568394be93bf310Jason parks
561f8217304073b5cd13823a0602568394be93bf310Jason parks        if (mWakeLock != null) {
5620460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo            Log.d(TAG, "Releasing and destroying wakelock");
563f8217304073b5cd13823a0602568394be93bf310Jason parks            mWakeLock.release();
564f8217304073b5cd13823a0602568394be93bf310Jason parks            mWakeLock = null;
565f8217304073b5cd13823a0602568394be93bf310Jason parks        }
566f8217304073b5cd13823a0602568394be93bf310Jason parks    }
567f8217304073b5cd13823a0602568394be93bf310Jason parks
568de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal    /**
569de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     * Start encrypting the device.
570de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal     */
571ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks    private void encryptionProgressInit() {
57235933812b16f0b4221280bbcc3c32f6540996bf2Jason parks        // Accquire a partial wakelock to prevent the device from sleeping. Note
57335933812b16f0b4221280bbcc3c32f6540996bf2Jason parks        // we never release this wakelock as we will be restarted after the device
57435933812b16f0b4221280bbcc3c32f6540996bf2Jason parks        // is encrypted.
5750460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo        Log.d(TAG, "Encryption progress screen initializing.");
5769ee164f44ea1ad66fa16ed702eb885e36ade0d8bBen Komalo        if (mWakeLock == null) {
5770460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo            Log.d(TAG, "Acquiring wakelock.");
5780460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo            PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
5790460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo            mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
5800460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo            mWakeLock.acquire();
5810460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo        }
582f8217304073b5cd13823a0602568394be93bf310Jason parks
583bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        ((ProgressBar) findViewById(R.id.progress_bar)).setIndeterminate(true);
584de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        // Ignore all back presses from now, both hard and soft keys.
585bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        setBackFunctionality(false);
586de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        // Start the first run of progress manually. This method sets up messages to occur at
587de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        // repeated intervals.
588f8217304073b5cd13823a0602568394be93bf310Jason parks        updateProgress();
589f8217304073b5cd13823a0602568394be93bf310Jason parks    }
590f8217304073b5cd13823a0602568394be93bf310Jason parks
591384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence    /**
592384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence     * Show factory reset screen allowing the user to reset their phone when
593384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence     * there is nothing else we can do
594384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence     * @param corrupt true if userdata is corrupt, false if encryption failed
595384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence     *        partway through
596384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence     */
5971de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey    private void showFactoryReset(final boolean corrupt) {
59813d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        // Hide the encryption-bot to make room for the "factory reset" button
59913d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        findViewById(R.id.encroid).setVisibility(View.GONE);
60013d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler
60113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        // Show the reset button, failure text, and a divider
602bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final Button button = (Button) findViewById(R.id.factory_reset);
60313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        button.setVisibility(View.VISIBLE);
60413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        button.setOnClickListener(new OnClickListener() {
605bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal                @Override
60613d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler            public void onClick(View v) {
60713d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler                // Factory reset the device.
6081de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                Intent intent = new Intent(Intent.ACTION_MASTER_CLEAR);
6091de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
6101de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                intent.putExtra(Intent.EXTRA_REASON,
6111de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                        "CryptKeeper.showFactoryReset() corrupt=" + corrupt);
6121de688d911cf96eff39eddc5a7070e3c44efefc1Jeff Sharkey                sendBroadcast(intent);
61313d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler            }
61413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        });
61513d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler
616bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        // Alert the user of the failure.
617384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence        if (corrupt) {
618384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence            ((TextView) findViewById(R.id.title)).setText(R.string.crypt_keeper_data_corrupt_title);
619384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence            ((TextView) findViewById(R.id.status)).setText(R.string.crypt_keeper_data_corrupt_summary);
620384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence        } else {
621384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence            ((TextView) findViewById(R.id.title)).setText(R.string.crypt_keeper_failed_title);
622384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence            ((TextView) findViewById(R.id.status)).setText(R.string.crypt_keeper_failed_summary);
623384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence        }
62413d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler
625bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final View view = findViewById(R.id.bottom_divider);
626bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        // TODO(viki): Why would the bottom divider be missing in certain layouts? Investigate.
627f0104df823a93ef4c3336118ddb02a0924e520daBen Komalo        if (view != null) {
628f0104df823a93ef4c3336118ddb02a0924e520daBen Komalo            view.setVisibility(View.VISIBLE);
629f0104df823a93ef4c3336118ddb02a0924e520daBen Komalo        }
63013d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler    }
63113d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler
632f8217304073b5cd13823a0602568394be93bf310Jason parks    private void updateProgress() {
633bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final String state = SystemProperties.get("vold.encrypt_progress");
634f8217304073b5cd13823a0602568394be93bf310Jason parks
6350e66609c95047ba7e5c0408bdc88af4315fd35b1Ben Komalo        if ("error_partially_encrypted".equals(state)) {
636384d8e52b6750b2be7079f8828e4d2f038e22180Paul Lawrence            showFactoryReset(false);
63713d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler            return;
63813d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler        }
63913d62049f7c96c47356f23eaee7f0997612fdf9fAndy Stadler
640b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        // Get status as percentage first
641b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        CharSequence status = getText(R.string.crypt_keeper_setup_description);
642b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        int percent = 0;
643f8217304073b5cd13823a0602568394be93bf310Jason parks        try {
64491a2f0566afb91549cbda9289b516154a6467624Ben Komalo            // Force a 50% progress state when debugging the view.
645b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            percent = isDebugView() ? 50 : Integer.parseInt(state);
646f8217304073b5cd13823a0602568394be93bf310Jason parks        } catch (Exception e) {
647f8217304073b5cd13823a0602568394be93bf310Jason parks            Log.w(TAG, "Error parsing progress: " + e.toString());
648f8217304073b5cd13823a0602568394be93bf310Jason parks        }
649b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        String progress = Integer.toString(percent);
65035933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
651b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        // Now try to get status as time remaining and replace as appropriate
6520460675b7c0d5a9b02dae01578c64ff0453e4fb7Ben Komalo        Log.v(TAG, "Encryption progress: " + progress);
653b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        try {
654b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            final String timeProperty = SystemProperties.get("vold.encrypt_time_remaining");
655b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            int time = Integer.parseInt(timeProperty);
656b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            if (time >= 0) {
657b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence                // Round up to multiple of 10 - this way display is less jerky
658b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence                time = (time + 9) / 10 * 10;
659b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence                progress = DateUtils.formatElapsedTime(time);
660b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence                status = getText(R.string.crypt_keeper_setup_time_remaining);
661b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            }
662b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        } catch (Exception e) {
663b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            // Will happen if no time etc - show percentage
664b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        }
665b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence
666bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final TextView tv = (TextView) findViewById(R.id.status);
667de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        if (tv != null) {
668b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence            tv.setText(TextUtils.expandTemplate(status, progress));
669de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        }
670b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence
671b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        // Check the progress every 1 seconds
672de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        mHandler.removeMessages(MESSAGE_UPDATE_PROGRESS);
673b15c68fbf19c021eb0a3bed1ccc4dd7fda384ec7Paul Lawrence        mHandler.sendEmptyMessageDelayed(MESSAGE_UPDATE_PROGRESS, 1000);
674f8217304073b5cd13823a0602568394be93bf310Jason parks    }
675f8217304073b5cd13823a0602568394be93bf310Jason parks
67651e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley    /** Insist on a power cycle to force the user to waste time between retries.
67751e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley     *
67851e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley     * Call setBackFunctionality(false) before calling this. */
679f8217304073b5cd13823a0602568394be93bf310Jason parks    private void cooldown() {
68051e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        // Disable the password entry.
68151e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        if (mPasswordEntry != null) {
68251e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley            mPasswordEntry.setEnabled(false);
683f8217304073b5cd13823a0602568394be93bf310Jason parks        }
68451e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        if (mLockPatternView != null) {
68551e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley            mLockPatternView.setEnabled(false);
68651e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        }
68751e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley
68851e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        final TextView status = (TextView) findViewById(R.id.status);
68951e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        status.setText(R.string.crypt_keeper_force_power_cycle);
690ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks    }
69135933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
692bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    /**
693bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal     * Sets the back status: enabled or disabled according to the parameter.
694bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal     * @param isEnabled true if back is enabled, false otherwise.
695bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal     */
696bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    private final void setBackFunctionality(boolean isEnabled) {
697bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        mIgnoreBack = !isEnabled;
698bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        if (isEnabled) {
699bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            mStatusBar.disable(sWidgetsToDisable);
700bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        } else {
701bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            mStatusBar.disable(sWidgetsToDisable | StatusBarManager.DISABLE_BACK);
702bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal        }
703bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal    }
704bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal
7052555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    private void fakeUnlockAttempt(View postingView) {
7062555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        beginAttempt();
7072555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley        postingView.postDelayed(mFakeUnlockAttemptRunnable, FAKE_ATTEMPT_DELAY);
7082555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley    }
7092555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley
710b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence    protected LockPatternView.OnPatternListener mChooseNewLockPatternListener =
711f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        new LockPatternView.OnPatternListener() {
712b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
713f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        @Override
714f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        public void onPatternStart() {
715f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence            mLockPatternView.removeCallbacks(mClearPatternRunnable);
716f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        }
717b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
718f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        @Override
719f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        public void onPatternCleared() {
720f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        }
721b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
722f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        @Override
723f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        public void onPatternDetected(List<LockPatternView.Cell> pattern) {
724f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence            mLockPatternView.setEnabled(false);
7252555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            if (pattern.size() >= MIN_LENGTH_BEFORE_REPORT) {
7262555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                new DecryptTask().execute(LockPatternUtils.patternToString(pattern));
7272555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            } else {
7282555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                // Allow user to make as many of these as they want.
7292555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                fakeUnlockAttempt(mLockPatternView);
7302555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            }
731f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        }
732b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
733f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        @Override
734f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        public void onPatternCellAdded(List<Cell> pattern) {
735f6cda3b176d097f8360b5c34c6ba746cd10b4004Paul Lawrence        }
736b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence     };
737b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
738b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence     private void passwordEntryInit() {
739b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        // Password/pin case
74006c5ff4a46686d3f599e40df0768177d3d88913cJason parks        mPasswordEntry = (EditText) findViewById(R.id.passwordEntry);
741b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        if (mPasswordEntry != null){
742b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            mPasswordEntry.setOnEditorActionListener(this);
743b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            mPasswordEntry.requestFocus();
744b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            // Become quiet when the user interacts with the Edit text screen.
745b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            mPasswordEntry.setOnKeyListener(this);
746b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            mPasswordEntry.setOnTouchListener(this);
747b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            mPasswordEntry.addTextChangedListener(this);
748b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        }
749b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence
750b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        // Pattern case
751b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        mLockPatternView = (LockPatternView) findViewById(R.id.lockPattern);
752b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        if (mLockPatternView != null) {
753b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence            mLockPatternView.setOnPatternListener(mChooseNewLockPatternListener);
754b05f39d186d8ce1b53bb4da3cb4c2cd22986f513Paul Lawrence        }
7559fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
756c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal        // Disable the Emergency call button if the device has no voice telephone capability
7573afbdf006057c93f930694e26306a3cc9cea34e4Santos Cordon        if (!getTelephonyManager().isVoiceCapable()) {
758c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal            final View emergencyCall = findViewById(R.id.emergencyCallButton);
759c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal            if (emergencyCall != null) {
760c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal                Log.d(TAG, "Removing the emergency Call button");
761c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal                emergencyCall.setVisibility(View.GONE);
762c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal            }
763c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal        }
764c62d321e8dcb023e8c7299802a75a271b7ca98d9Vikram Aggarwal
765bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final View imeSwitcher = findViewById(R.id.switch_ime_button);
7669fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        final InputMethodManager imm = (InputMethodManager) getSystemService(
7679fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                Context.INPUT_METHOD_SERVICE);
7689fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        if (imeSwitcher != null && hasMultipleEnabledIMEsOrSubtypes(imm, false)) {
7699fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            imeSwitcher.setVisibility(View.VISIBLE);
7709fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            imeSwitcher.setOnClickListener(new OnClickListener() {
771bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal                    @Override
7729fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                public void onClick(View v) {
773e792729b4ca60632b43c9e1ee6126fb5e031deaeSeigo Nonaka                    imm.showInputMethodPicker(false /* showAuxiliarySubtypes */);
7749fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                }
7759fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            });
7769fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        }
7779fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
778de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        // We want to keep the screen on while waiting for input. In minimal boot mode, the device
779de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        // is completely non-functional, and we want the user to notice the device and enter a
780de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        // password.
781de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        if (mWakeLock == null) {
782de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            Log.d(TAG, "Acquiring wakelock.");
783de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
784de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            if (pm != null) {
785de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
786de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal                mWakeLock.acquire();
78773456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence                // Keep awake for 10 minutes - if the user hasn't been alerted by then
78873456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence                // best not to just drain their battery
7895a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence                mReleaseWakeLockCountdown = 96; // 96 * 5 secs per click + 120 secs before we show this = 600
790de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            }
791de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal        }
79273456acfb45beb7a95b5aee5a1f7566d3b803a86Paul Lawrence
7939fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        // Asynchronously throw up the IME, since there are issues with requesting it to be shown
7949fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        // immediately.
79551e0811a7ac7ec5e31c67a466bb450d80ffaa24aPaul Crowley        if (mLockPatternView == null && !mCooldown) {
796e54e9323ed423d68f0567dcf05f45c62187ad8ddPaul Lawrence            mHandler.postDelayed(new Runnable() {
797e54e9323ed423d68f0567dcf05f45c62187ad8ddPaul Lawrence                @Override public void run() {
798e54e9323ed423d68f0567dcf05f45c62187ad8ddPaul Lawrence                    imm.showSoftInputUnchecked(0, null);
799e54e9323ed423d68f0567dcf05f45c62187ad8ddPaul Lawrence                }
800e54e9323ed423d68f0567dcf05f45c62187ad8ddPaul Lawrence            }, 0);
801e54e9323ed423d68f0567dcf05f45c62187ad8ddPaul Lawrence        }
8029fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
8039fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        updateEmergencyCallButtonState();
804d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        // Notify the user in 120 seconds that we are waiting for him to enter the password.
80586b93937fa417647d22ee15d3a0aff7a751be17aVikram Aggarwal        mHandler.removeMessages(MESSAGE_NOTIFY);
806d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        mHandler.sendEmptyMessageDelayed(MESSAGE_NOTIFY, 120 * 1000);
807fb3d5cad48876dbd366fd8b562529d355d2428dbJim Miller
8082c526515775559b34a311400435de28d85b9c79eJohn Spurlock        // Dismiss secure & non-secure keyguards while this screen is showing.
8092c526515775559b34a311400435de28d85b9c79eJohn Spurlock        getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
8102c526515775559b34a311400435de28d85b9c79eJohn Spurlock                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
8119fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo    }
81235933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
8139fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo    /**
8149fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo     * Method adapted from com.android.inputmethod.latin.Utils
8159fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo     *
8169fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo     * @param imm The input method manager
8179fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo     * @param shouldIncludeAuxiliarySubtypes
8189fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo     * @return true if we have multiple IMEs to choose from
8199fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo     */
8209fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo    private boolean hasMultipleEnabledIMEsOrSubtypes(InputMethodManager imm,
8219fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            final boolean shouldIncludeAuxiliarySubtypes) {
8229fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        final List<InputMethodInfo> enabledImis = imm.getEnabledInputMethodList();
8239fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
8249fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        // Number of the filtered IMEs
8259fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        int filteredImisCount = 0;
8269fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
8279fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        for (InputMethodInfo imi : enabledImis) {
8289fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            // We can return true immediately after we find two or more filtered IMEs.
8299fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            if (filteredImisCount > 1) return true;
8309fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            final List<InputMethodSubtype> subtypes =
8319fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                    imm.getEnabledInputMethodSubtypeList(imi, true);
8329fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            // IMEs that have no subtypes should be counted.
8339fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            if (subtypes.isEmpty()) {
8349fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                ++filteredImisCount;
8359fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                continue;
8369fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            }
83735933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
8389fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            int auxCount = 0;
8399fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            for (InputMethodSubtype subtype : subtypes) {
8409fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                if (subtype.isAuxiliary()) {
8419fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                    ++auxCount;
8429fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                }
8439fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            }
8449fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            final int nonAuxCount = subtypes.size() - auxCount;
8459fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo
8469fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            // IMEs that have one or more non-auxiliary subtypes should be counted.
8479fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            // If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary
8489fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            // subtypes should be counted as well.
8499fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) {
8509fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                ++filteredImisCount;
8519fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                continue;
8529fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo            }
85300046d6e176eb05c3e3b0d13d38a8da7491bba5eJason parks        }
8548373b451692a39abdfd12444241c016831e1a4a4David Brown
8559fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        return filteredImisCount > 1
8569fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        // imm.getEnabledInputMethodSubtypeList(null, false) will return the current IME's enabled
8579fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo        // input method subtype (The current IME should be LatinIME.)
8589fcb6a7fac02aef85085c2db616556257e1642f5Ben Komalo                || imm.getEnabledInputMethodSubtypeList(null, false).size() > 1;
8598fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    }
8608fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
8618fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    private IMountService getMountService() {
862bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final IBinder service = ServiceManager.getService("mount");
8638fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        if (service != null) {
8648fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks            return IMountService.Stub.asInterface(service);
8658fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        }
8668fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        return null;
8678fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    }
8688fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
8698fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    @Override
8708fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
87100046d6e176eb05c3e3b0d13d38a8da7491bba5eJason parks        if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE) {
8728fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks            // Get the password
873bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal            final String password = v.getText().toString();
8748fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
875ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks            if (TextUtils.isEmpty(password)) {
876ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks                return true;
877ec5a45e79cb7161adfabf475342c1e1b25994276Jason parks            }
87835933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
8798fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks            // Now that we have the password clear the password field.
8808fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks            v.setText(null);
8818fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks
882de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            // Disable the password entry and back keypress while checking the password. These
883de3c9cb412688eb841993ad971d06039d8a952c3Vikram Aggarwal            // we either be re-enabled if the password was wrong or after the cooldown period.
88406c5ff4a46686d3f599e40df0768177d3d88913cJason parks            mPasswordEntry.setEnabled(false);
885bf459dafdc5d97d8f2103c1d2a9cb65f5096e4f8Vikram Aggarwal            setBackFunctionality(false);
88606c5ff4a46686d3f599e40df0768177d3d88913cJason parks
8872555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            if (password.length() >= LockPatternUtils.MIN_LOCK_PATTERN_SIZE) {
8882555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                new DecryptTask().execute(password);
8892555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            } else {
8902555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                // Allow user to make as many of these as they want.
8912555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley                fakeUnlockAttempt(mPasswordEntry);
8922555e5f1040984a3422c5a4db43421e87d4ca0cePaul Crowley            }
89335933812b16f0b4221280bbcc3c32f6540996bf2Jason parks
8948fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks            return true;
8958fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        }
8968fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks        return false;
8978fd5bc9e6ff0d02012df670a6bf4bcdaf903c09dJason parks    }
8988373b451692a39abdfd12444241c016831e1a4a4David Brown
899bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal    /**
900ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * Set airplane mode on the device if it isn't an LTE device.
901ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * Full story: In minimal boot mode, we cannot save any state. In particular, we cannot save
902ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * any incoming SMS's. So SMSs that are received here will be silently dropped to the floor.
903ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * That is bad. Also, we cannot receive any telephone calls in this state. So to avoid
904ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * both these problems, we turn the radio off. However, on certain networks turning on and
905ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * off the radio takes a long time. In such cases, we are better off leaving the radio
906ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * running so the latency of an E911 call is short.
907ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * The behavior after this is:
908ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * 1. Emergency dialing: the emergency dialer has logic to force the device out of
909ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     *    airplane mode and restart the radio.
910ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     * 2. Full boot: we read the persistent settings from the previous boot and restore the
911ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     *    radio to whatever it was before it restarted. This also happens when rebooting a
912ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     *    phone that has no encryption.
913ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal     */
914ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal    private final void setAirplaneModeIfNecessary() {
915ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal        final boolean isLteDevice =
9163afbdf006057c93f930694e26306a3cc9cea34e4Santos Cordon                getTelephonyManager().getLteOnCdmaMode() == PhoneConstants.LTE_ON_CDMA_TRUE;
917ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal        if (!isLteDevice) {
918ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal            Log.d(TAG, "Going into airplane mode.");
9196a5929b086a61a955a4a2f43f5fa251e8754ff4aChristopher Tate            Settings.Global.putInt(getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 1);
920ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal            final Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
921ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal            intent.putExtra("state", true);
9226a5929b086a61a955a4a2f43f5fa251e8754ff4aChristopher Tate            sendBroadcastAsUser(intent, UserHandle.ALL);
923ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal        }
924ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal    }
925ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal
926ea1186db19e673b44084b43b6a70bbdb07480aa9Vikram Aggarwal    /**
927bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal     * Code to update the state of, and handle clicks from, the "Emergency call" button.
928bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal     *
929bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal     * This code is mostly duplicated from the corresponding code in
930bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal     * LockPatternUtils and LockPatternKeyguardView under frameworks/base.
931bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal     */
9328373b451692a39abdfd12444241c016831e1a4a4David Brown    private void updateEmergencyCallButtonState() {
933bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final Button emergencyCall = (Button) findViewById(R.id.emergencyCallButton);
9348373b451692a39abdfd12444241c016831e1a4a4David Brown        // The button isn't present at all in some configurations.
935bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        if (emergencyCall == null)
936bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal            return;
9378373b451692a39abdfd12444241c016831e1a4a4David Brown
9388373b451692a39abdfd12444241c016831e1a4a4David Brown        if (isEmergencyCallCapable()) {
939bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal            emergencyCall.setVisibility(View.VISIBLE);
940bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal            emergencyCall.setOnClickListener(new View.OnClickListener() {
941bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal                    @Override
942bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal
9438373b451692a39abdfd12444241c016831e1a4a4David Brown                    public void onClick(View v) {
9448373b451692a39abdfd12444241c016831e1a4a4David Brown                        takeEmergencyCallAction();
9458373b451692a39abdfd12444241c016831e1a4a4David Brown                    }
9468373b451692a39abdfd12444241c016831e1a4a4David Brown                });
9478373b451692a39abdfd12444241c016831e1a4a4David Brown        } else {
948bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal            emergencyCall.setVisibility(View.GONE);
9498373b451692a39abdfd12444241c016831e1a4a4David Brown            return;
9508373b451692a39abdfd12444241c016831e1a4a4David Brown        }
9518373b451692a39abdfd12444241c016831e1a4a4David Brown
9528373b451692a39abdfd12444241c016831e1a4a4David Brown        int textId;
9533e71b197f7f85c5045a083ecc532954958807be6Tyler Gunn        if (getTelecomManager().isInCall()) {
95489c7570dd42ce6945ce8e092892a22ec79c30c82Paul Lawrence            // Show "return to call"
9558373b451692a39abdfd12444241c016831e1a4a4David Brown            textId = R.string.cryptkeeper_return_to_call;
9568373b451692a39abdfd12444241c016831e1a4a4David Brown        } else {
9578373b451692a39abdfd12444241c016831e1a4a4David Brown            textId = R.string.cryptkeeper_emergency_call;
9588373b451692a39abdfd12444241c016831e1a4a4David Brown        }
959bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        emergencyCall.setText(textId);
9608373b451692a39abdfd12444241c016831e1a4a4David Brown    }
9618373b451692a39abdfd12444241c016831e1a4a4David Brown
9628373b451692a39abdfd12444241c016831e1a4a4David Brown    private boolean isEmergencyCallCapable() {
9638373b451692a39abdfd12444241c016831e1a4a4David Brown        return getResources().getBoolean(com.android.internal.R.bool.config_voice_capable);
9648373b451692a39abdfd12444241c016831e1a4a4David Brown    }
9658373b451692a39abdfd12444241c016831e1a4a4David Brown
9668373b451692a39abdfd12444241c016831e1a4a4David Brown    private void takeEmergencyCallAction() {
9673e71b197f7f85c5045a083ecc532954958807be6Tyler Gunn        TelecomManager telecomManager = getTelecomManager();
9683e71b197f7f85c5045a083ecc532954958807be6Tyler Gunn        if (telecomManager.isInCall()) {
9693e71b197f7f85c5045a083ecc532954958807be6Tyler Gunn            telecomManager.showInCallScreen(false /* showDialpad */);
9708373b451692a39abdfd12444241c016831e1a4a4David Brown        } else {
9718373b451692a39abdfd12444241c016831e1a4a4David Brown            launchEmergencyDialer();
9728373b451692a39abdfd12444241c016831e1a4a4David Brown        }
9738373b451692a39abdfd12444241c016831e1a4a4David Brown    }
9748373b451692a39abdfd12444241c016831e1a4a4David Brown
9758373b451692a39abdfd12444241c016831e1a4a4David Brown
9768373b451692a39abdfd12444241c016831e1a4a4David Brown    private void launchEmergencyDialer() {
977bfa3a64310162c8f29eae208220988380ffeea6eVikram Aggarwal        final Intent intent = new Intent(ACTION_EMERGENCY_DIAL);
9788373b451692a39abdfd12444241c016831e1a4a4David Brown        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
9798373b451692a39abdfd12444241c016831e1a4a4David Brown                        | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
9805a70f05e0d86443cd97b186d2a5101eb4c7eed81Paul Lawrence        setBackFunctionality(true);
9818373b451692a39abdfd12444241c016831e1a4a4David Brown        startActivity(intent);
9828373b451692a39abdfd12444241c016831e1a4a4David Brown    }
983d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal
9843afbdf006057c93f930694e26306a3cc9cea34e4Santos Cordon    private TelephonyManager getTelephonyManager() {
9853afbdf006057c93f930694e26306a3cc9cea34e4Santos Cordon        return (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
9863afbdf006057c93f930694e26306a3cc9cea34e4Santos Cordon    }
9873afbdf006057c93f930694e26306a3cc9cea34e4Santos Cordon
9883e71b197f7f85c5045a083ecc532954958807be6Tyler Gunn    private TelecomManager getTelecomManager() {
9893e71b197f7f85c5045a083ecc532954958807be6Tyler Gunn        return (TelecomManager) getSystemService(Context.TELECOM_SERVICE);
99035230e9ed76de518c7ea46d9277bdc8fa765efd8Santos Cordon    }
99135230e9ed76de518c7ea46d9277bdc8fa765efd8Santos Cordon
992d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    /**
993d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal     * Listen to key events so we can disable sounds when we get a keyinput in EditText.
994d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal     */
995d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    private void delayAudioNotification() {
996d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        mNotificationCountdown = 20;
997d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    }
998d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal
999d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    @Override
1000d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    public boolean onKey(View v, int keyCode, KeyEvent event) {
1001d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        delayAudioNotification();
1002d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        return false;
1003d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    }
1004d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal
1005d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    @Override
1006d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    public boolean onTouch(View v, MotionEvent event) {
1007d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        delayAudioNotification();
1008d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        return false;
1009d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    }
1010d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal
1011d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    @Override
1012d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
1013d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        return;
1014d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    }
1015d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal
1016d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    @Override
1017d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    public void onTextChanged(CharSequence s, int start, int before, int count) {
1018d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        delayAudioNotification();
1019d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    }
1020d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal
1021d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    @Override
1022d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    public void afterTextChanged(Editable s) {
1023d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal        return;
1024d1147250dd5fb7022b01a5c899d365069bb625f8Vikram Aggarwal    }
10251b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov
10261b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov    private static void disableCryptKeeperComponent(Context context) {
10271b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov        PackageManager pm = context.getPackageManager();
10281b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov        ComponentName name = new ComponentName(context, CryptKeeper.class);
10291b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov        Log.d(TAG, "Disabling component " + name);
10301b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov        pm.setComponentEnabledSetting(name, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
10311b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov                PackageManager.DONT_KILL_APP);
10321b5cc427f06019936e40ee8e43ae931b8752eb11Fyodor Kupolov    }
10338373b451692a39abdfd12444241c016831e1a4a4David Brown}
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