| /** |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.server.vr; |
| |
| import android.Manifest; |
| import android.app.ActivityManager; |
| import android.app.AppOpsManager; |
| import android.app.NotificationManager; |
| import android.annotation.NonNull; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.FeatureInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IInterface; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.service.notification.NotificationListenerService; |
| import android.service.vr.IVrListener; |
| import android.service.vr.IVrManager; |
| import android.service.vr.IVrStateCallbacks; |
| import android.service.vr.VrListenerService; |
| import android.text.TextUtils; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import com.android.internal.R; |
| import com.android.server.LocalServices; |
| import com.android.server.SystemConfig; |
| import com.android.server.SystemService; |
| import com.android.server.utils.ManagedApplicationService.PendingEvent; |
| import com.android.server.vr.EnabledComponentsObserver.EnabledComponentChangeListener; |
| import com.android.server.utils.ManagedApplicationService; |
| import com.android.server.utils.ManagedApplicationService.BinderChecker; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.lang.StringBuilder; |
| import java.text.SimpleDateFormat; |
| import java.util.ArrayDeque; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** |
| * Service tracking whether VR mode is active, and notifying listening services of state changes. |
| * <p/> |
| * Services running in system server may modify the state of VrManagerService via the interface in |
| * VrManagerInternal, and may register to receive callbacks when the system VR mode changes via the |
| * interface given in VrStateListener. |
| * <p/> |
| * Device vendors may choose to receive VR state changes by implementing the VR mode HAL, e.g.: |
| * hardware/libhardware/modules/vr |
| * <p/> |
| * In general applications may enable or disable VR mode by calling |
| * {@link android.app.Activity#setVrModeEnabled)}. An application may also implement a service to |
| * be run while in VR mode by implementing {@link android.service.vr.VrListenerService}. |
| * |
| * @see android.service.vr.VrListenerService |
| * @see com.android.server.vr.VrManagerInternal |
| * @see com.android.server.vr.VrStateListener |
| * |
| * @hide |
| */ |
| public class VrManagerService extends SystemService implements EnabledComponentChangeListener{ |
| |
| public static final String TAG = "VrManagerService"; |
| |
| public static final String VR_MANAGER_BINDER_SERVICE = "vrmanager"; |
| |
| private static final int PENDING_STATE_DELAY_MS = 300; |
| private static final int EVENT_LOG_SIZE = 32; |
| private static final int INVALID_APPOPS_MODE = -1; |
| /** Null set of sleep sleep flags. */ |
| private static final int FLAG_NONE = 0; |
| /** Flag set when the device is not sleeping. */ |
| private static final int FLAG_AWAKE = 1; |
| /** Flag set when the screen has been turned on. */ |
| private static final int FLAG_SCREEN_ON = 2; |
| /** Flag indicating that all system sleep flags have been set.*/ |
| private static final int FLAG_ALL = FLAG_AWAKE | FLAG_SCREEN_ON; |
| |
| private static native void initializeNative(); |
| private static native void setVrModeNative(boolean enabled); |
| |
| private final Object mLock = new Object(); |
| |
| private final IBinder mOverlayToken = new Binder(); |
| |
| // State protected by mLock |
| private boolean mVrModeAllowed; |
| private boolean mVrModeEnabled; |
| private EnabledComponentsObserver mComponentObserver; |
| private ManagedApplicationService mCurrentVrService; |
| private Context mContext; |
| private ComponentName mCurrentVrModeComponent; |
| private int mCurrentVrModeUser; |
| private boolean mWasDefaultGranted; |
| private boolean mGuard; |
| private final RemoteCallbackList<IVrStateCallbacks> mRemoteCallbacks = |
| new RemoteCallbackList<>(); |
| private int mPreviousCoarseLocationMode = INVALID_APPOPS_MODE; |
| private int mPreviousManageOverlayMode = INVALID_APPOPS_MODE; |
| private VrState mPendingState; |
| private final ArrayDeque<VrState> mLoggingDeque = new ArrayDeque<>(EVENT_LOG_SIZE); |
| private final NotificationAccessManager mNotifAccessManager = new NotificationAccessManager(); |
| /** Tracks the state of the screen and keyguard UI.*/ |
| private int mSystemSleepFlags = FLAG_NONE; |
| |
| private static final int MSG_VR_STATE_CHANGE = 0; |
| private static final int MSG_PENDING_VR_STATE_CHANGE = 1; |
| |
| /** |
| * Set whether VR mode may be enabled. |
| * <p/> |
| * If VR mode is not allowed to be enabled, calls to set VR mode will be cached. When VR mode |
| * is again allowed to be enabled, the most recent cached state will be applied. |
| * |
| * @param allowed {@code true} if calling any of the setVrMode methods may cause the device to |
| * enter VR mode. |
| */ |
| private void setVrModeAllowedLocked(boolean allowed) { |
| if (mVrModeAllowed != allowed) { |
| mVrModeAllowed = allowed; |
| Slog.i(TAG, "VR mode is " + ((allowed) ? "allowed" : "disallowed")); |
| if (mVrModeAllowed) { |
| consumeAndApplyPendingStateLocked(); |
| } else { |
| // Set pending state to current state. |
| mPendingState = (mVrModeEnabled && mCurrentVrService != null) |
| ? new VrState(mVrModeEnabled, mCurrentVrService.getComponent(), |
| mCurrentVrService.getUserId(), mCurrentVrModeComponent) |
| : null; |
| |
| // Unbind current VR service and do necessary callbacks. |
| updateCurrentVrServiceLocked(false, null, 0, null); |
| } |
| } |
| } |
| |
| private void setSleepState(boolean isAsleep) { |
| synchronized(mLock) { |
| |
| if (!isAsleep) { |
| mSystemSleepFlags |= FLAG_AWAKE; |
| } else { |
| mSystemSleepFlags &= ~FLAG_AWAKE; |
| } |
| |
| setVrModeAllowedLocked(mSystemSleepFlags == FLAG_ALL); |
| } |
| } |
| |
| private void setScreenOn(boolean isScreenOn) { |
| synchronized(mLock) { |
| if (isScreenOn) { |
| mSystemSleepFlags |= FLAG_SCREEN_ON; |
| } else { |
| mSystemSleepFlags &= ~FLAG_SCREEN_ON; |
| } |
| setVrModeAllowedLocked(mSystemSleepFlags == FLAG_ALL); |
| } |
| } |
| |
| private final Handler mHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| switch(msg.what) { |
| case MSG_VR_STATE_CHANGE : { |
| boolean state = (msg.arg1 == 1); |
| int i = mRemoteCallbacks.beginBroadcast(); |
| while (i > 0) { |
| i--; |
| try { |
| mRemoteCallbacks.getBroadcastItem(i).onVrStateChanged(state); |
| } catch (RemoteException e) { |
| // Noop |
| } |
| } |
| mRemoteCallbacks.finishBroadcast(); |
| } break; |
| case MSG_PENDING_VR_STATE_CHANGE : { |
| synchronized(mLock) { |
| if (mVrModeAllowed) { |
| VrManagerService.this.consumeAndApplyPendingStateLocked(); |
| } |
| } |
| } break; |
| default : |
| throw new IllegalStateException("Unknown message type: " + msg.what); |
| } |
| } |
| }; |
| |
| private static class VrState { |
| final boolean enabled; |
| final int userId; |
| final ComponentName targetPackageName; |
| final ComponentName callingPackage; |
| final long timestamp; |
| final boolean defaultPermissionsGranted; |
| |
| VrState(boolean enabled, ComponentName targetPackageName, int userId, |
| ComponentName callingPackage) { |
| this.enabled = enabled; |
| this.userId = userId; |
| this.targetPackageName = targetPackageName; |
| this.callingPackage = callingPackage; |
| this.defaultPermissionsGranted = false; |
| this.timestamp = System.currentTimeMillis(); |
| } |
| |
| VrState(boolean enabled, ComponentName targetPackageName, int userId, |
| ComponentName callingPackage, boolean defaultPermissionsGranted) { |
| this.enabled = enabled; |
| this.userId = userId; |
| this.targetPackageName = targetPackageName; |
| this.callingPackage = callingPackage; |
| this.defaultPermissionsGranted = defaultPermissionsGranted; |
| this.timestamp = System.currentTimeMillis(); |
| } |
| } |
| |
| private static final BinderChecker sBinderChecker = new BinderChecker() { |
| @Override |
| public IInterface asInterface(IBinder binder) { |
| return IVrListener.Stub.asInterface(binder); |
| } |
| |
| @Override |
| public boolean checkType(IInterface service) { |
| return service instanceof IVrListener; |
| } |
| }; |
| |
| private final class NotificationAccessManager { |
| private final SparseArray<ArraySet<String>> mAllowedPackages = new SparseArray<>(); |
| private final ArrayMap<String, Integer> mNotificationAccessPackageToUserId = |
| new ArrayMap<>(); |
| |
| public void update(Collection<String> packageNames) { |
| int currentUserId = ActivityManager.getCurrentUser(); |
| |
| ArraySet<String> allowed = mAllowedPackages.get(currentUserId); |
| if (allowed == null) { |
| allowed = new ArraySet<>(); |
| } |
| |
| // Make sure we revoke notification access for listeners in other users |
| final int listenerCount = mNotificationAccessPackageToUserId.size(); |
| for (int i = listenerCount - 1; i >= 0; i--) { |
| final int grantUserId = mNotificationAccessPackageToUserId.valueAt(i); |
| if (grantUserId != currentUserId) { |
| String packageName = mNotificationAccessPackageToUserId.keyAt(i); |
| revokeNotificationListenerAccess(packageName, grantUserId); |
| revokeNotificationPolicyAccess(packageName); |
| revokeCoarseLocationPermissionIfNeeded(packageName, grantUserId); |
| mNotificationAccessPackageToUserId.removeAt(i); |
| } |
| } |
| |
| for (String pkg : allowed) { |
| if (!packageNames.contains(pkg)) { |
| revokeNotificationListenerAccess(pkg, currentUserId); |
| revokeNotificationPolicyAccess(pkg); |
| revokeCoarseLocationPermissionIfNeeded(pkg, currentUserId); |
| mNotificationAccessPackageToUserId.remove(pkg); |
| } |
| } |
| for (String pkg : packageNames) { |
| if (!allowed.contains(pkg)) { |
| grantNotificationPolicyAccess(pkg); |
| grantNotificationListenerAccess(pkg, currentUserId); |
| grantCoarseLocationPermissionIfNeeded(pkg, currentUserId); |
| mNotificationAccessPackageToUserId.put(pkg, currentUserId); |
| } |
| } |
| |
| allowed.clear(); |
| allowed.addAll(packageNames); |
| mAllowedPackages.put(currentUserId, allowed); |
| } |
| } |
| |
| /** |
| * Called when a user, package, or setting changes that could affect whether or not the |
| * currently bound VrListenerService is changed. |
| */ |
| @Override |
| public void onEnabledComponentChanged() { |
| synchronized (mLock) { |
| int currentUser = ActivityManager.getCurrentUser(); |
| // Update listeners |
| ArraySet<ComponentName> enabledListeners = mComponentObserver.getEnabled(currentUser); |
| |
| ArraySet<String> enabledPackages = new ArraySet<>(); |
| for (ComponentName n : enabledListeners) { |
| String pkg = n.getPackageName(); |
| if (isDefaultAllowed(pkg)) { |
| enabledPackages.add(n.getPackageName()); |
| } |
| } |
| mNotifAccessManager.update(enabledPackages); |
| |
| if (!mVrModeAllowed) { |
| return; // Don't do anything, we shouldn't be in VR mode. |
| } |
| |
| // If there is a pending state change, we'd better deal with that first |
| consumeAndApplyPendingStateLocked(false); |
| |
| if (mCurrentVrService == null) { |
| return; // No active services |
| } |
| |
| // There is an active service, update it if needed |
| updateCurrentVrServiceLocked(mVrModeEnabled, mCurrentVrService.getComponent(), |
| mCurrentVrService.getUserId(), null); |
| } |
| } |
| |
| private final IVrManager mVrManager = new IVrManager.Stub() { |
| |
| @Override |
| public void registerListener(IVrStateCallbacks cb) { |
| enforceCallerPermission(Manifest.permission.ACCESS_VR_MANAGER); |
| if (cb == null) { |
| throw new IllegalArgumentException("Callback binder object is null."); |
| } |
| |
| VrManagerService.this.addStateCallback(cb); |
| } |
| |
| @Override |
| public void unregisterListener(IVrStateCallbacks cb) { |
| enforceCallerPermission(Manifest.permission.ACCESS_VR_MANAGER); |
| if (cb == null) { |
| throw new IllegalArgumentException("Callback binder object is null."); |
| } |
| |
| VrManagerService.this.removeStateCallback(cb); |
| } |
| |
| @Override |
| public boolean getVrModeState() { |
| return VrManagerService.this.getVrMode(); |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (getContext().checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| pw.println("permission denied: can't dump VrManagerService from pid=" |
| + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); |
| return; |
| } |
| pw.println("********* Dump of VrManagerService *********"); |
| pw.println("VR mode is currently: " + ((mVrModeAllowed) ? "allowed" : "disallowed")); |
| pw.println("Previous state transitions:\n"); |
| String tab = " "; |
| dumpStateTransitions(pw); |
| pw.println("\n\nRemote Callbacks:"); |
| int i=mRemoteCallbacks.beginBroadcast(); // create the broadcast item array |
| while(i-->0) { |
| pw.print(tab); |
| pw.print(mRemoteCallbacks.getBroadcastItem(i)); |
| if (i>0) pw.println(","); |
| } |
| mRemoteCallbacks.finishBroadcast(); |
| pw.println("\n"); |
| pw.println("Installed VrListenerService components:"); |
| int userId = mCurrentVrModeUser; |
| ArraySet<ComponentName> installed = mComponentObserver.getInstalled(userId); |
| if (installed == null || installed.size() == 0) { |
| pw.println("None"); |
| } else { |
| for (ComponentName n : installed) { |
| pw.print(tab); |
| pw.println(n.flattenToString()); |
| } |
| } |
| pw.println("Enabled VrListenerService components:"); |
| ArraySet<ComponentName> enabled = mComponentObserver.getEnabled(userId); |
| if (enabled == null || enabled.size() == 0) { |
| pw.println("None"); |
| } else { |
| for (ComponentName n : enabled) { |
| pw.print(tab); |
| pw.println(n.flattenToString()); |
| } |
| } |
| pw.println("\n"); |
| pw.println("********* End of VrManagerService Dump *********"); |
| } |
| |
| }; |
| |
| private void enforceCallerPermission(String permission) { |
| if (mContext.checkCallingOrSelfPermission(permission) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("Caller does not hold the permission " + permission); |
| } |
| } |
| |
| /** |
| * Implementation of VrManagerInternal. Callable only from system services. |
| */ |
| private final class LocalService extends VrManagerInternal { |
| @Override |
| public void setVrMode(boolean enabled, ComponentName packageName, int userId, |
| ComponentName callingPackage) { |
| VrManagerService.this.setVrMode(enabled, packageName, userId, callingPackage); |
| } |
| |
| @Override |
| public void onSleepStateChanged(boolean isAsleep) { |
| VrManagerService.this.setSleepState(isAsleep); |
| } |
| |
| @Override |
| public void onScreenStateChanged(boolean isScreenOn) { |
| VrManagerService.this.setScreenOn(isScreenOn); |
| } |
| |
| @Override |
| public boolean isCurrentVrListener(String packageName, int userId) { |
| return VrManagerService.this.isCurrentVrListener(packageName, userId); |
| } |
| |
| @Override |
| public int hasVrPackage(ComponentName packageName, int userId) { |
| return VrManagerService.this.hasVrPackage(packageName, userId); |
| } |
| } |
| |
| public VrManagerService(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public void onStart() { |
| synchronized(mLock) { |
| initializeNative(); |
| mContext = getContext(); |
| } |
| |
| publishLocalService(VrManagerInternal.class, new LocalService()); |
| publishBinderService(VR_MANAGER_BINDER_SERVICE, mVrManager.asBinder()); |
| } |
| |
| @Override |
| public void onBootPhase(int phase) { |
| if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { |
| synchronized (mLock) { |
| Looper looper = Looper.getMainLooper(); |
| Handler handler = new Handler(looper); |
| ArrayList<EnabledComponentChangeListener> listeners = new ArrayList<>(); |
| listeners.add(this); |
| mComponentObserver = EnabledComponentsObserver.build(mContext, handler, |
| Settings.Secure.ENABLED_VR_LISTENERS, looper, |
| android.Manifest.permission.BIND_VR_LISTENER_SERVICE, |
| VrListenerService.SERVICE_INTERFACE, mLock, listeners); |
| |
| mComponentObserver.rebuildAll(); |
| } |
| } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { |
| synchronized (mLock) { |
| mVrModeAllowed = true; |
| } |
| } |
| } |
| |
| @Override |
| public void onStartUser(int userHandle) { |
| synchronized (mLock) { |
| mComponentObserver.onUsersChanged(); |
| } |
| } |
| |
| @Override |
| public void onSwitchUser(int userHandle) { |
| synchronized (mLock) { |
| mComponentObserver.onUsersChanged(); |
| } |
| |
| } |
| |
| @Override |
| public void onStopUser(int userHandle) { |
| synchronized (mLock) { |
| mComponentObserver.onUsersChanged(); |
| } |
| |
| } |
| |
| @Override |
| public void onCleanupUser(int userHandle) { |
| synchronized (mLock) { |
| mComponentObserver.onUsersChanged(); |
| } |
| } |
| |
| private void updateOverlayStateLocked(String exemptedPackage, int newUserId, int oldUserId) { |
| AppOpsManager appOpsManager = getContext().getSystemService(AppOpsManager.class); |
| |
| // If user changed drop restrictions for the old user. |
| if (oldUserId != newUserId) { |
| appOpsManager.setUserRestrictionForUser(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, |
| false, mOverlayToken, null, oldUserId); |
| } |
| |
| if (!mVrModeEnabled) { |
| return; |
| } |
| |
| // Apply the restrictions for the current user based on vr state |
| String[] exemptions = (exemptedPackage == null) ? new String[0] : |
| new String[] { exemptedPackage }; |
| |
| appOpsManager.setUserRestrictionForUser(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, |
| true, mOverlayToken, exemptions, newUserId); |
| } |
| |
| private void updateDependentAppOpsLocked(String newVrServicePackage, int newUserId, |
| String oldVrServicePackage, int oldUserId) { |
| // If VR state changed and we also have a VR service change. |
| if (Objects.equals(newVrServicePackage, oldVrServicePackage)) { |
| return; |
| } |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| // Set overlay exception state based on VR enabled and current service |
| updateOverlayStateLocked(newVrServicePackage, newUserId, oldUserId); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } |
| |
| /** |
| * Send VR mode changes (if the mode state has changed), and update the bound/unbound state of |
| * the currently selected VR listener service. If the component selected for the VR listener |
| * service has changed, unbind the previous listener and bind the new listener (if enabled). |
| * <p/> |
| * Note: Must be called while holding {@code mLock}. |
| * |
| * @param enabled new state for VR mode. |
| * @param component new component to be bound as a VR listener. |
| * @param userId user owning the component to be bound. |
| * @param calling the component currently using VR mode, or null to leave unchanged. |
| * |
| * @return {@code true} if the component/user combination specified is valid. |
| */ |
| private boolean updateCurrentVrServiceLocked(boolean enabled, @NonNull ComponentName component, |
| int userId, ComponentName calling) { |
| |
| boolean sendUpdatedCaller = false; |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| |
| boolean validUserComponent = (mComponentObserver.isValid(component, userId) == |
| EnabledComponentsObserver.NO_ERROR); |
| boolean goingIntoVrMode = validUserComponent && enabled; |
| if (!mVrModeEnabled && !goingIntoVrMode) { |
| return validUserComponent; // Disabled -> Disabled transition does nothing. |
| } |
| |
| String oldVrServicePackage = mCurrentVrService != null |
| ? mCurrentVrService.getComponent().getPackageName() : null; |
| final int oldUserId = mCurrentVrModeUser; |
| |
| // Notify system services and VR HAL of mode change. |
| changeVrModeLocked(goingIntoVrMode); |
| |
| boolean nothingChanged = false; |
| if (!goingIntoVrMode) { |
| // Not going into VR mode, unbind whatever is running |
| if (mCurrentVrService != null) { |
| Slog.i(TAG, "Leaving VR mode, disconnecting " |
| + mCurrentVrService.getComponent() + " for user " |
| + mCurrentVrService.getUserId()); |
| mCurrentVrService.disconnect(); |
| mCurrentVrService = null; |
| } else { |
| nothingChanged = true; |
| } |
| } else { |
| // Going into VR mode |
| if (mCurrentVrService != null) { |
| // Unbind any running service that doesn't match the latest component/user |
| // selection. |
| if (mCurrentVrService.disconnectIfNotMatching(component, userId)) { |
| Slog.i(TAG, "VR mode component changed to " + component |
| + ", disconnecting " + mCurrentVrService.getComponent() |
| + " for user " + mCurrentVrService.getUserId()); |
| createAndConnectService(component, userId); |
| sendUpdatedCaller = true; |
| } else { |
| nothingChanged = true; |
| } |
| // The service with the correct component/user is already bound, do nothing. |
| } else { |
| // Nothing was previously running, bind a new service for the latest |
| // component/user selection. |
| createAndConnectService(component, userId); |
| sendUpdatedCaller = true; |
| } |
| } |
| |
| if (calling != null && !Objects.equals(calling, mCurrentVrModeComponent)) { |
| mCurrentVrModeComponent = calling; |
| sendUpdatedCaller = true; |
| } |
| |
| if (mCurrentVrModeUser != userId) { |
| mCurrentVrModeUser = userId; |
| sendUpdatedCaller = true; |
| } |
| |
| String newVrServicePackage = mCurrentVrService != null |
| ? mCurrentVrService.getComponent().getPackageName() : null; |
| final int newUserId = mCurrentVrModeUser; |
| |
| // Update AppOps settings that change state when entering/exiting VR mode, or changing |
| // the current VrListenerService. |
| updateDependentAppOpsLocked(newVrServicePackage, newUserId, |
| oldVrServicePackage, oldUserId); |
| |
| if (mCurrentVrService != null && sendUpdatedCaller) { |
| final ComponentName c = mCurrentVrModeComponent; |
| mCurrentVrService.sendEvent(new PendingEvent() { |
| @Override |
| public void runEvent(IInterface service) throws RemoteException { |
| IVrListener l = (IVrListener) service; |
| l.focusedActivityChanged(c); |
| } |
| }); |
| } |
| |
| if (!nothingChanged) { |
| logStateLocked(); |
| } |
| |
| return validUserComponent; |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } |
| |
| private boolean isDefaultAllowed(String packageName) { |
| PackageManager pm = mContext.getPackageManager(); |
| |
| ApplicationInfo info = null; |
| try { |
| info = pm.getApplicationInfo(packageName, PackageManager.GET_META_DATA); |
| } catch (NameNotFoundException e) { |
| } |
| |
| if (info == null || !(info.isSystemApp() || info.isUpdatedSystemApp())) { |
| return false; |
| } |
| return true; |
| } |
| |
| private void grantNotificationPolicyAccess(String pkg) { |
| NotificationManager nm = mContext.getSystemService(NotificationManager.class); |
| nm.setNotificationPolicyAccessGranted(pkg, true); |
| } |
| |
| private void revokeNotificationPolicyAccess(String pkg) { |
| NotificationManager nm = mContext.getSystemService(NotificationManager.class); |
| // Remove any DND zen rules possibly created by the package. |
| nm.removeAutomaticZenRules(pkg); |
| // Remove Notification Policy Access. |
| nm.setNotificationPolicyAccessGranted(pkg, false); |
| } |
| |
| private void grantNotificationListenerAccess(String pkg, int userId) { |
| PackageManager pm = mContext.getPackageManager(); |
| ArraySet<ComponentName> possibleServices = EnabledComponentsObserver.loadComponentNames(pm, |
| userId, NotificationListenerService.SERVICE_INTERFACE, |
| android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE); |
| ContentResolver resolver = mContext.getContentResolver(); |
| |
| ArraySet<String> current = getNotificationListeners(resolver, userId); |
| |
| for (ComponentName c : possibleServices) { |
| String flatName = c.flattenToString(); |
| if (Objects.equals(c.getPackageName(), pkg) |
| && !current.contains(flatName)) { |
| current.add(flatName); |
| } |
| } |
| |
| if (current.size() > 0) { |
| String flatSettings = formatSettings(current); |
| Settings.Secure.putStringForUser(resolver, |
| Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, |
| flatSettings, userId); |
| } |
| } |
| |
| private void revokeNotificationListenerAccess(String pkg, int userId) { |
| ContentResolver resolver = mContext.getContentResolver(); |
| |
| ArraySet<String> current = getNotificationListeners(resolver, userId); |
| |
| ArrayList<String> toRemove = new ArrayList<>(); |
| |
| for (String c : current) { |
| ComponentName component = ComponentName.unflattenFromString(c); |
| if (component != null && component.getPackageName().equals(pkg)) { |
| toRemove.add(c); |
| } |
| } |
| |
| current.removeAll(toRemove); |
| |
| String flatSettings = formatSettings(current); |
| Settings.Secure.putStringForUser(resolver, |
| Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, |
| flatSettings, userId); |
| } |
| |
| private void grantCoarseLocationPermissionIfNeeded(String pkg, int userId) { |
| // Don't clobber the user if permission set in current state explicitly |
| if (!isPermissionUserUpdated(Manifest.permission.ACCESS_COARSE_LOCATION, pkg, userId)) { |
| try { |
| mContext.getPackageManager().grantRuntimePermission(pkg, |
| Manifest.permission.ACCESS_COARSE_LOCATION, new UserHandle(userId)); |
| } catch (IllegalArgumentException e) { |
| // Package was removed during update. |
| Slog.w(TAG, "Could not grant coarse location permission, package " + pkg |
| + " was removed."); |
| } |
| } |
| } |
| |
| private void revokeCoarseLocationPermissionIfNeeded(String pkg, int userId) { |
| // Don't clobber the user if permission set in current state explicitly |
| if (!isPermissionUserUpdated(Manifest.permission.ACCESS_COARSE_LOCATION, pkg, userId)) { |
| try { |
| mContext.getPackageManager().revokeRuntimePermission(pkg, |
| Manifest.permission.ACCESS_COARSE_LOCATION, new UserHandle(userId)); |
| } catch (IllegalArgumentException e) { |
| // Package was removed during update. |
| Slog.w(TAG, "Could not revoke coarse location permission, package " + pkg |
| + " was removed."); |
| } |
| } |
| } |
| |
| private boolean isPermissionUserUpdated(String permission, String pkg, int userId) { |
| final int flags = mContext.getPackageManager().getPermissionFlags( |
| permission, pkg, new UserHandle(userId)); |
| return (flags & (PackageManager.FLAG_PERMISSION_USER_SET |
| | PackageManager.FLAG_PERMISSION_USER_FIXED)) != 0; |
| } |
| |
| private ArraySet<String> getNotificationListeners(ContentResolver resolver, int userId) { |
| String flat = Settings.Secure.getStringForUser(resolver, |
| Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, userId); |
| |
| ArraySet<String> current = new ArraySet<>(); |
| if (flat != null) { |
| String[] allowed = flat.split(":"); |
| for (String s : allowed) { |
| if (!TextUtils.isEmpty(s)) { |
| current.add(s); |
| } |
| } |
| } |
| return current; |
| } |
| |
| private static String formatSettings(Collection<String> c) { |
| if (c == null || c.isEmpty()) { |
| return ""; |
| } |
| |
| StringBuilder b = new StringBuilder(); |
| boolean start = true; |
| for (String s : c) { |
| if ("".equals(s)) { |
| continue; |
| } |
| if (!start) { |
| b.append(':'); |
| } |
| b.append(s); |
| start = false; |
| } |
| return b.toString(); |
| } |
| |
| |
| |
| private void createAndConnectService(@NonNull ComponentName component, int userId) { |
| mCurrentVrService = VrManagerService.create(mContext, component, userId); |
| mCurrentVrService.connect(); |
| Slog.i(TAG, "Connecting " + component + " for user " + userId); |
| } |
| |
| /** |
| * Send VR mode change callbacks to HAL and system services if mode has actually changed. |
| * <p/> |
| * Note: Must be called while holding {@code mLock}. |
| * |
| * @param enabled new state of the VR mode. |
| */ |
| private void changeVrModeLocked(boolean enabled) { |
| if (mVrModeEnabled != enabled) { |
| mVrModeEnabled = enabled; |
| |
| // Log mode change event. |
| Slog.i(TAG, "VR mode " + ((mVrModeEnabled) ? "enabled" : "disabled")); |
| setVrModeNative(mVrModeEnabled); |
| |
| onVrModeChangedLocked(); |
| } |
| } |
| |
| /** |
| * Notify system services of VR mode change. |
| * <p/> |
| * Note: Must be called while holding {@code mLock}. |
| */ |
| private void onVrModeChangedLocked() { |
| mHandler.sendMessage(mHandler.obtainMessage(MSG_VR_STATE_CHANGE, |
| (mVrModeEnabled) ? 1 : 0, 0)); |
| } |
| |
| /** |
| * Helper function for making ManagedApplicationService instances. |
| */ |
| private static ManagedApplicationService create(@NonNull Context context, |
| @NonNull ComponentName component, int userId) { |
| return ManagedApplicationService.build(context, component, userId, |
| R.string.vr_listener_binding_label, Settings.ACTION_VR_LISTENER_SETTINGS, |
| sBinderChecker); |
| } |
| |
| /** |
| * Apply the pending VR state. If no state is pending, disconnect any currently bound |
| * VR listener service. |
| */ |
| private void consumeAndApplyPendingStateLocked() { |
| consumeAndApplyPendingStateLocked(true); |
| } |
| |
| /** |
| * Apply the pending VR state. |
| * |
| * @param disconnectIfNoPendingState if {@code true}, then any currently bound VR listener |
| * service will be disconnected if no state is pending. If this is {@code false} then the |
| * nothing will be changed when there is no pending state. |
| */ |
| private void consumeAndApplyPendingStateLocked(boolean disconnectIfNoPendingState) { |
| if (mPendingState != null) { |
| updateCurrentVrServiceLocked(mPendingState.enabled, |
| mPendingState.targetPackageName, mPendingState.userId, |
| mPendingState.callingPackage); |
| mPendingState = null; |
| } else if (disconnectIfNoPendingState) { |
| updateCurrentVrServiceLocked(false, null, 0, null); |
| } |
| } |
| |
| private void logStateLocked() { |
| ComponentName currentBoundService = (mCurrentVrService == null) ? null : |
| mCurrentVrService.getComponent(); |
| VrState current = new VrState(mVrModeEnabled, currentBoundService, mCurrentVrModeUser, |
| mCurrentVrModeComponent, mWasDefaultGranted); |
| if (mLoggingDeque.size() == EVENT_LOG_SIZE) { |
| mLoggingDeque.removeFirst(); |
| } |
| mLoggingDeque.add(current); |
| } |
| |
| private void dumpStateTransitions(PrintWriter pw) { |
| SimpleDateFormat d = new SimpleDateFormat("MM-dd HH:mm:ss.SSS"); |
| String tab = " "; |
| if (mLoggingDeque.size() == 0) { |
| pw.print(tab); |
| pw.println("None"); |
| } |
| for (VrState state : mLoggingDeque) { |
| pw.print(d.format(new Date(state.timestamp))); |
| pw.print(tab); |
| pw.print("State changed to:"); |
| pw.print(tab); |
| pw.println((state.enabled) ? "ENABLED" : "DISABLED"); |
| if (state.enabled) { |
| pw.print(tab); |
| pw.print("User="); |
| pw.println(state.userId); |
| pw.print(tab); |
| pw.print("Current VR Activity="); |
| pw.println((state.callingPackage == null) ? |
| "None" : state.callingPackage.flattenToString()); |
| pw.print(tab); |
| pw.print("Bound VrListenerService="); |
| pw.println((state.targetPackageName == null) ? |
| "None" : state.targetPackageName.flattenToString()); |
| if (state.defaultPermissionsGranted) { |
| pw.print(tab); |
| pw.println("Default permissions granted to the bound VrListenerService."); |
| } |
| } |
| } |
| } |
| |
| /* |
| * Implementation of VrManagerInternal calls. These are callable from system services. |
| */ |
| private void setVrMode(boolean enabled, @NonNull ComponentName targetPackageName, |
| int userId, @NonNull ComponentName callingPackage) { |
| |
| synchronized (mLock) { |
| VrState pending = new VrState(enabled, targetPackageName, userId, callingPackage); |
| if (!mVrModeAllowed) { |
| // We're not allowed to be in VR mode. Make this state pending. This will be |
| // applied the next time we are allowed to enter VR mode unless it is superseded by |
| // another call. |
| mPendingState = pending; |
| return; |
| } |
| |
| if (!enabled && mCurrentVrService != null) { |
| // If we're transitioning out of VR mode, delay briefly to avoid expensive HAL calls |
| // and service bind/unbind in case we are immediately switching to another VR app. |
| if (mPendingState == null) { |
| mHandler.sendEmptyMessageDelayed(MSG_PENDING_VR_STATE_CHANGE, |
| PENDING_STATE_DELAY_MS); |
| } |
| |
| mPendingState = pending; |
| return; |
| } else { |
| mHandler.removeMessages(MSG_PENDING_VR_STATE_CHANGE); |
| mPendingState = null; |
| } |
| |
| updateCurrentVrServiceLocked(enabled, targetPackageName, userId, callingPackage); |
| } |
| } |
| |
| private int hasVrPackage(@NonNull ComponentName targetPackageName, int userId) { |
| synchronized (mLock) { |
| return mComponentObserver.isValid(targetPackageName, userId); |
| } |
| } |
| |
| private boolean isCurrentVrListener(String packageName, int userId) { |
| synchronized (mLock) { |
| if (mCurrentVrService == null) { |
| return false; |
| } |
| return mCurrentVrService.getComponent().getPackageName().equals(packageName) && |
| userId == mCurrentVrService.getUserId(); |
| } |
| } |
| |
| /* |
| * Implementation of IVrManager calls. |
| */ |
| |
| private void addStateCallback(IVrStateCallbacks cb) { |
| mRemoteCallbacks.register(cb); |
| } |
| |
| private void removeStateCallback(IVrStateCallbacks cb) { |
| mRemoteCallbacks.unregister(cb); |
| } |
| |
| private boolean getVrMode() { |
| synchronized (mLock) { |
| return mVrModeEnabled; |
| } |
| } |
| } |
