Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License |
| 15 | */ |
| 16 | |
| 17 | package com.android.systemui.statusbar.phone; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | |
| 21 | import com.android.internal.widget.LockPatternUtils; |
| 22 | import com.android.keyguard.KeyguardUpdateMonitor; |
| 23 | import com.android.keyguard.KeyguardUpdateMonitorCallback; |
| 24 | |
| 25 | import java.util.ArrayList; |
| 26 | |
| 27 | /** |
| 28 | * Caches whether the current unlock method is insecure, taking trust into account. This information |
| 29 | * might be a little bit out of date and should not be used for actual security decisions; it should |
| 30 | * be only used for visual indications. |
| 31 | */ |
| 32 | public class UnlockMethodCache { |
| 33 | |
| 34 | private static UnlockMethodCache sInstance; |
| 35 | |
| 36 | private final LockPatternUtils mLockPatternUtils; |
| 37 | private final KeyguardUpdateMonitor mKeyguardUpdateMonitor; |
| 38 | private final ArrayList<OnUnlockMethodChangedListener> mListeners = new ArrayList<>(); |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 39 | /** Whether the user configured a secure unlock method (PIN, password, etc.) */ |
| 40 | private boolean mSecure; |
| 41 | /** Whether the unlock method is currently insecure (insecure method or trusted environment) */ |
| 42 | private boolean mCurrentlyInsecure; |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 43 | private boolean mTrustManaged; |
Adrian Roos | 4a41017 | 2014-08-20 17:41:44 +0200 | [diff] [blame] | 44 | private boolean mFaceUnlockRunning; |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 45 | |
| 46 | private UnlockMethodCache(Context ctx) { |
| 47 | mLockPatternUtils = new LockPatternUtils(ctx); |
| 48 | mKeyguardUpdateMonitor = KeyguardUpdateMonitor.getInstance(ctx); |
| 49 | KeyguardUpdateMonitor.getInstance(ctx).registerCallback(mCallback); |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 50 | update(true /* updateAlways */); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | public static UnlockMethodCache getInstance(Context context) { |
| 54 | if (sInstance == null) { |
| 55 | sInstance = new UnlockMethodCache(context); |
| 56 | } |
| 57 | return sInstance; |
| 58 | } |
| 59 | |
| 60 | /** |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 61 | * @return whether the user configured a secure unlock method like PIN, password, etc. |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 62 | */ |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 63 | public boolean isMethodSecure() { |
| 64 | return mSecure; |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * @return whether the lockscreen is currently insecure, i. e. the bouncer won't be shown |
| 69 | */ |
| 70 | public boolean isCurrentlyInsecure() { |
| 71 | return mCurrentlyInsecure; |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | public void addListener(OnUnlockMethodChangedListener listener) { |
| 75 | mListeners.add(listener); |
| 76 | } |
| 77 | |
| 78 | public void removeListener(OnUnlockMethodChangedListener listener) { |
| 79 | mListeners.remove(listener); |
| 80 | } |
| 81 | |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 82 | private void update(boolean updateAlways) { |
Adrian Roos | d6aa6cb | 2015-04-16 19:31:29 -0700 | [diff] [blame^] | 83 | int user = KeyguardUpdateMonitor.getCurrentUser(); |
Adrian Roos | 8150d2a | 2015-04-16 17:11:20 -0700 | [diff] [blame] | 84 | boolean secure = mLockPatternUtils.isSecure(user); |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 85 | boolean currentlyInsecure = !secure || mKeyguardUpdateMonitor.getUserHasTrust(user); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 86 | boolean trustManaged = mKeyguardUpdateMonitor.getUserTrustIsManaged(user); |
Adrian Roos | 4a41017 | 2014-08-20 17:41:44 +0200 | [diff] [blame] | 87 | boolean faceUnlockRunning = mKeyguardUpdateMonitor.isFaceUnlockRunning(user) |
| 88 | && trustManaged; |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 89 | boolean changed = secure != mSecure || currentlyInsecure != mCurrentlyInsecure || |
| 90 | trustManaged != mTrustManaged || faceUnlockRunning != mFaceUnlockRunning; |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 91 | if (changed || updateAlways) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 92 | mSecure = secure; |
| 93 | mCurrentlyInsecure = currentlyInsecure; |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 94 | mTrustManaged = trustManaged; |
Adrian Roos | 4a41017 | 2014-08-20 17:41:44 +0200 | [diff] [blame] | 95 | mFaceUnlockRunning = faceUnlockRunning; |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 96 | notifyListeners(); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 97 | } |
| 98 | } |
| 99 | |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 100 | private void notifyListeners() { |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 101 | for (OnUnlockMethodChangedListener listener : mListeners) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 102 | listener.onUnlockMethodStateChanged(); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 103 | } |
| 104 | } |
| 105 | |
| 106 | private final KeyguardUpdateMonitorCallback mCallback = new KeyguardUpdateMonitorCallback() { |
| 107 | @Override |
| 108 | public void onUserSwitchComplete(int userId) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 109 | update(false /* updateAlways */); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 110 | } |
| 111 | |
| 112 | @Override |
| 113 | public void onTrustChanged(int userId) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 114 | update(false /* updateAlways */); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | @Override |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 118 | public void onTrustManagedChanged(int userId) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 119 | update(false /* updateAlways */); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | @Override |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 123 | public void onScreenTurnedOn() { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 124 | update(false /* updateAlways */); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 125 | } |
Jim Miller | f41fc96 | 2014-06-18 16:33:51 -0700 | [diff] [blame] | 126 | |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 127 | @Override |
Jim Miller | 9f0753f | 2015-03-23 23:59:22 -0700 | [diff] [blame] | 128 | public void onFingerprintAuthenticated(int userId) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 129 | update(false /* updateAlways */); |
Jim Miller | f41fc96 | 2014-06-18 16:33:51 -0700 | [diff] [blame] | 130 | } |
Adrian Roos | 4a41017 | 2014-08-20 17:41:44 +0200 | [diff] [blame] | 131 | |
| 132 | @Override |
| 133 | public void onFaceUnlockStateChanged(boolean running, int userId) { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 134 | update(false /* updateAlways */); |
Adrian Roos | 4a41017 | 2014-08-20 17:41:44 +0200 | [diff] [blame] | 135 | } |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 136 | }; |
| 137 | |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 138 | public boolean isTrustManaged() { |
| 139 | return mTrustManaged; |
| 140 | } |
| 141 | |
Adrian Roos | 4a41017 | 2014-08-20 17:41:44 +0200 | [diff] [blame] | 142 | public boolean isFaceUnlockRunning() { |
| 143 | return mFaceUnlockRunning; |
| 144 | } |
| 145 | |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 146 | public static interface OnUnlockMethodChangedListener { |
Christoph Studer | 2231c6e | 2014-12-19 12:40:13 +0100 | [diff] [blame] | 147 | void onUnlockMethodStateChanged(); |
Jorim Jaggi | ecc798e | 2014-05-26 18:14:37 +0200 | [diff] [blame] | 148 | } |
| 149 | } |