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.keyguard; 18 19 import android.app.Service; 20 import android.content.Intent; 21 import android.os.Binder; 22 import android.os.Bundle; 23 import android.os.Debug; 24 import android.os.IBinder; 25 import android.os.Process; 26 import android.os.Trace; 27 import android.util.Log; 28 29 import com.android.internal.policy.IKeyguardDismissCallback; 30 import com.android.internal.policy.IKeyguardDrawnCallback; 31 import com.android.internal.policy.IKeyguardExitCallback; 32 import com.android.internal.policy.IKeyguardService; 33 import com.android.internal.policy.IKeyguardStateCallback; 34 import com.android.systemui.Dependency; 35 import com.android.systemui.SystemUIApplication; 36 37 import static android.content.pm.PackageManager.PERMISSION_GRANTED; 38 39 public class KeyguardService extends Service { 40 static final String TAG = "KeyguardService"; 41 static final String PERMISSION = android.Manifest.permission.CONTROL_KEYGUARD; 42 43 private KeyguardViewMediator mKeyguardViewMediator; 44 private KeyguardLifecyclesDispatcher mKeyguardLifecyclesDispatcher; 45 46 @Override 47 public void onCreate() { 48 ((SystemUIApplication) getApplication()).startServicesIfNeeded(); 49 mKeyguardViewMediator = 50 ((SystemUIApplication) getApplication()).getComponent(KeyguardViewMediator.class); 51 mKeyguardLifecyclesDispatcher = new KeyguardLifecyclesDispatcher( 52 Dependency.get(ScreenLifecycle.class), 53 Dependency.get(WakefulnessLifecycle.class)); 54 55 } 56 57 @Override 58 public IBinder onBind(Intent intent) { 59 return mBinder; 60 } 61 62 void checkPermission() { 63 // Avoid deadlock by avoiding calling back into the system process. 64 if (Binder.getCallingUid() == Process.SYSTEM_UID) return; 65 66 // Otherwise,explicitly check for caller permission ... 67 if (getBaseContext().checkCallingOrSelfPermission(PERMISSION) != PERMISSION_GRANTED) { 68 Log.w(TAG, "Caller needs permission '" + PERMISSION + "' to call " + Debug.getCaller()); 69 throw new SecurityException("Access denied to process: " + Binder.getCallingPid() 70 + ", must have permission " + PERMISSION); 71 } 72 } 73 74 private final IKeyguardService.Stub mBinder = new IKeyguardService.Stub() { 75 76 @Override // Binder interface 77 public void addStateMonitorCallback(IKeyguardStateCallback callback) { 78 checkPermission(); 79 mKeyguardViewMediator.addStateMonitorCallback(callback); 80 } 81 82 @Override // Binder interface 83 public void verifyUnlock(IKeyguardExitCallback callback) { 84 Trace.beginSection("KeyguardService.mBinder#verifyUnlock"); 85 checkPermission(); 86 mKeyguardViewMediator.verifyUnlock(callback); 87 Trace.endSection(); 88 } 89 90 @Override // Binder interface 91 public void setOccluded(boolean isOccluded, boolean animate) { 92 Trace.beginSection("KeyguardService.mBinder#setOccluded"); 93 checkPermission(); 94 mKeyguardViewMediator.setOccluded(isOccluded, animate); 95 Trace.endSection(); 96 } 97 98 @Override // Binder interface 99 public void dismiss(IKeyguardDismissCallback callback) { 100 checkPermission(); 101 mKeyguardViewMediator.dismiss(callback); 102 } 103 104 @Override // Binder interface 105 public void onDreamingStarted() { 106 checkPermission(); 107 mKeyguardViewMediator.onDreamingStarted(); 108 } 109 110 @Override // Binder interface 111 public void onDreamingStopped() { 112 checkPermission(); 113 mKeyguardViewMediator.onDreamingStopped(); 114 } 115 116 @Override // Binder interface 117 public void onStartedGoingToSleep(int reason) { 118 checkPermission(); 119 mKeyguardViewMediator.onStartedGoingToSleep(reason); 120 mKeyguardLifecyclesDispatcher.dispatch( 121 KeyguardLifecyclesDispatcher.STARTED_GOING_TO_SLEEP); 122 } 123 124 @Override // Binder interface 125 public void onFinishedGoingToSleep(int reason, boolean cameraGestureTriggered) { 126 checkPermission(); 127 mKeyguardViewMediator.onFinishedGoingToSleep(reason, cameraGestureTriggered); 128 mKeyguardLifecyclesDispatcher.dispatch( 129 KeyguardLifecyclesDispatcher.FINISHED_GOING_TO_SLEEP); 130 } 131 132 @Override // Binder interface 133 public void onStartedWakingUp() { 134 Trace.beginSection("KeyguardService.mBinder#onStartedWakingUp"); 135 checkPermission(); 136 mKeyguardViewMediator.onStartedWakingUp(); 137 mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.STARTED_WAKING_UP); 138 Trace.endSection(); 139 } 140 141 @Override // Binder interface 142 public void onFinishedWakingUp() { 143 Trace.beginSection("KeyguardService.mBinder#onFinishedWakingUp"); 144 checkPermission(); 145 mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.FINISHED_WAKING_UP); 146 Trace.endSection(); 147 } 148 149 @Override // Binder interface 150 public void onScreenTurningOn(IKeyguardDrawnCallback callback) { 151 Trace.beginSection("KeyguardService.mBinder#onScreenTurningOn"); 152 checkPermission(); 153 mKeyguardViewMediator.onScreenTurningOn(callback); 154 mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.SCREEN_TURNING_ON); 155 Trace.endSection(); 156 } 157 158 @Override // Binder interface 159 public void onScreenTurnedOn() { 160 Trace.beginSection("KeyguardService.mBinder#onScreenTurnedOn"); 161 checkPermission(); 162 mKeyguardViewMediator.onScreenTurnedOn(); 163 mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.SCREEN_TURNED_ON); 164 Trace.endSection(); 165 } 166 167 @Override // Binder interface 168 public void onScreenTurningOff() { 169 checkPermission(); 170 mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.SCREEN_TURNING_OFF); 171 } 172 173 @Override // Binder interface 174 public void onScreenTurnedOff() { 175 checkPermission(); 176 mKeyguardViewMediator.onScreenTurnedOff(); 177 mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.SCREEN_TURNED_OFF); 178 } 179 180 @Override // Binder interface 181 public void setKeyguardEnabled(boolean enabled) { 182 checkPermission(); 183 mKeyguardViewMediator.setKeyguardEnabled(enabled); 184 } 185 186 @Override // Binder interface 187 public void onSystemReady() { 188 Trace.beginSection("KeyguardService.mBinder#onSystemReady"); 189 checkPermission(); 190 mKeyguardViewMediator.onSystemReady(); 191 Trace.endSection(); 192 } 193 194 @Override // Binder interface 195 public void doKeyguardTimeout(Bundle options) { 196 checkPermission(); 197 mKeyguardViewMediator.doKeyguardTimeout(options); 198 } 199 200 @Override // Binder interface 201 public void setSwitchingUser(boolean switching) { 202 checkPermission(); 203 mKeyguardViewMediator.setSwitchingUser(switching); 204 } 205 206 @Override // Binder interface 207 public void setCurrentUser(int userId) { 208 checkPermission(); 209 mKeyguardViewMediator.setCurrentUser(userId); 210 } 211 212 @Override 213 public void onBootCompleted() { 214 checkPermission(); 215 mKeyguardViewMediator.onBootCompleted(); 216 } 217 218 @Override 219 public void startKeyguardExitAnimation(long startTime, long fadeoutDuration) { 220 Trace.beginSection("KeyguardService.mBinder#startKeyguardExitAnimation"); 221 checkPermission(); 222 mKeyguardViewMediator.startKeyguardExitAnimation(startTime, fadeoutDuration); 223 Trace.endSection(); 224 } 225 226 @Override 227 public void onShortPowerPressedGoHome() { 228 checkPermission(); 229 mKeyguardViewMediator.onShortPowerPressedGoHome(); 230 } 231 }; 232 } 233 234
