| /* |
| * Copyright (C) 2014 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.backup; |
| |
| import static com.android.server.backup.BackupManagerService.TAG; |
| |
| import android.Manifest; |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.app.admin.DevicePolicyManager; |
| import android.app.backup.BackupManager; |
| import android.app.backup.IBackupManager; |
| import android.app.backup.IBackupManagerMonitor; |
| import android.app.backup.IBackupObserver; |
| import android.app.backup.IFullBackupRestoreObserver; |
| import android.app.backup.IRestoreSession; |
| import android.app.backup.ISelectBackupTransportCallback; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.ParcelFileDescriptor; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.SystemProperties; |
| import android.os.Trace; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.Slog; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.util.DumpUtils; |
| import com.android.server.backup.utils.RandomAccessFileUtils; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| /** |
| * A proxy to the {@link BackupManagerService} implementation. |
| * |
| * <p>This is an external interface to the {@link BackupManagerService} which is being accessed via |
| * published binder {@link BackupManagerService.Lifecycle}. This lets us turn down the heavy |
| * implementation object on the fly without disturbing binders that have been cached somewhere in |
| * the system. |
| * |
| * <p>Trampoline determines whether the backup service is available. It can be disabled in the |
| * following two ways: |
| * |
| * <ul> |
| * <li>Temporary - create the file {@link #BACKUP_SUPPRESS_FILENAME}, or |
| * <li>Permanent - set the system property {@link #BACKUP_DISABLE_PROPERTY} to true. |
| * </ul> |
| * |
| * Temporary disabling is controlled by {@link #setBackupServiceActive(int, boolean)} through |
| * privileged callers (currently {@link DevicePolicyManager}). This is called on {@link |
| * UserHandle#USER_SYSTEM} and disables backup for all users. |
| * |
| * <p>Creation of the backup service is done when {@link UserHandle#USER_SYSTEM} is unlocked. The |
| * system user is unlocked before any other users. |
| */ |
| public class Trampoline extends IBackupManager.Stub { |
| /** |
| * Name of file that disables the backup service. If this file exists, then backup is disabled |
| * for all users. |
| */ |
| private static final String BACKUP_SUPPRESS_FILENAME = "backup-suppress"; |
| |
| /** |
| * Name of file for non-system users that enables the backup service for the user. Backup is |
| * disabled by default in non-system users. |
| */ |
| private static final String BACKUP_ACTIVATED_FILENAME = "backup-activated"; |
| |
| /** |
| * Name of file for non-system users that remembers whether backup was explicitly activated or |
| * deactivated with a call to setBackupServiceActive. |
| */ |
| private static final String REMEMBER_ACTIVATED_FILENAME = "backup-remember-activated"; |
| |
| // Product-level suppression of backup/restore. |
| private static final String BACKUP_DISABLE_PROPERTY = "ro.backup.disable"; |
| |
| private static final String BACKUP_THREAD = "backup"; |
| |
| private final Context mContext; |
| private final UserManager mUserManager; |
| |
| private final boolean mGlobalDisable; |
| // Lock to write backup suppress files. |
| // TODD(b/121198006): remove this object and synchronized all methods on "this". |
| private final Object mStateLock = new Object(); |
| |
| private volatile BackupManagerService mService; |
| private final Handler mHandler; |
| |
| public Trampoline(Context context) { |
| mContext = context; |
| mGlobalDisable = isBackupDisabled(); |
| HandlerThread handlerThread = |
| new HandlerThread(BACKUP_THREAD, Process.THREAD_PRIORITY_BACKGROUND); |
| handlerThread.start(); |
| mHandler = new Handler(handlerThread.getLooper()); |
| mUserManager = UserManager.get(context); |
| } |
| |
| protected boolean isBackupDisabled() { |
| return SystemProperties.getBoolean(BACKUP_DISABLE_PROPERTY, false); |
| } |
| |
| protected int binderGetCallingUserId() { |
| return Binder.getCallingUserHandle().getIdentifier(); |
| } |
| |
| protected int binderGetCallingUid() { |
| return Binder.getCallingUid(); |
| } |
| |
| /** Stored in the system user's directory. */ |
| protected File getSuppressFileForSystemUser() { |
| return new File(UserBackupManagerFiles.getBaseStateDir(UserHandle.USER_SYSTEM), |
| BACKUP_SUPPRESS_FILENAME); |
| } |
| |
| /** Stored in the system user's directory and the file is indexed by the user it refers to. */ |
| protected File getRememberActivatedFileForNonSystemUser(int userId) { |
| return UserBackupManagerFiles.getStateFileInSystemDir(REMEMBER_ACTIVATED_FILENAME, userId); |
| } |
| |
| /** Stored in the system user's directory and the file is indexed by the user it refers to. */ |
| protected File getActivatedFileForNonSystemUser(int userId) { |
| return UserBackupManagerFiles.getStateFileInSystemDir(BACKUP_ACTIVATED_FILENAME, userId); |
| } |
| |
| // TODO (b/124359804) move to util method in FileUtils |
| private void createFile(File file) throws IOException { |
| if (file.exists()) { |
| return; |
| } |
| |
| file.getParentFile().mkdirs(); |
| if (!file.createNewFile()) { |
| Slog.w(TAG, "Failed to create file " + file.getPath()); |
| } |
| } |
| |
| // TODO (b/124359804) move to util method in FileUtils |
| private void deleteFile(File file) { |
| if (!file.exists()) { |
| return; |
| } |
| |
| if (!file.delete()) { |
| Slog.w(TAG, "Failed to delete file " + file.getPath()); |
| } |
| } |
| |
| /** |
| * Deactivates the backup service for user {@code userId}. If this is the system user, it |
| * creates a suppress file which disables backup for all users. If this is a non-system user, it |
| * only deactivates backup for that user by deleting its activate file. |
| */ |
| @GuardedBy("mStateLock") |
| private void deactivateBackupForUserLocked(int userId) throws IOException { |
| if (userId == UserHandle.USER_SYSTEM) { |
| createFile(getSuppressFileForSystemUser()); |
| } else { |
| deleteFile(getActivatedFileForNonSystemUser(userId)); |
| } |
| } |
| |
| /** |
| * Enables the backup service for user {@code userId}. If this is the system user, it deletes |
| * the suppress file. If this is a non-system user, it creates the user's activate file. Note, |
| * deleting the suppress file does not automatically enable backup for non-system users, they |
| * need their own activate file in order to participate in the service. |
| */ |
| @GuardedBy("mStateLock") |
| private void activateBackupForUserLocked(int userId) throws IOException { |
| if (userId == UserHandle.USER_SYSTEM) { |
| deleteFile(getSuppressFileForSystemUser()); |
| } else { |
| createFile(getActivatedFileForNonSystemUser(userId)); |
| } |
| } |
| |
| // A user is ready for a backup if it's unlocked and is not suppressed by a device |
| // admin (device owner or profile owner). |
| private boolean isUserReadyForBackup(int userId) { |
| return mService != null && mService.getServiceUsers().get(userId) != null |
| && isBackupActivatedForUser(userId); |
| } |
| |
| /** |
| * Backup is activated for the system user if the suppress file does not exist. Backup is |
| * activated for non-system users if the suppress file does not exist AND the user's activated |
| * file exists. |
| */ |
| private boolean isBackupActivatedForUser(int userId) { |
| if (getSuppressFileForSystemUser().exists()) { |
| return false; |
| } |
| |
| return userId == UserHandle.USER_SYSTEM |
| || getActivatedFileForNonSystemUser(userId).exists(); |
| } |
| |
| protected Context getContext() { |
| return mContext; |
| } |
| |
| protected UserManager getUserManager() { |
| return mUserManager; |
| } |
| |
| protected BackupManagerService createBackupManagerService() { |
| return new BackupManagerService(mContext, this); |
| } |
| |
| protected void postToHandler(Runnable runnable) { |
| mHandler.post(runnable); |
| } |
| |
| /** |
| * Called from {@link BackupManagerService.Lifecycle} when the system user is unlocked. Attempts |
| * to initialize {@link BackupManagerService}. Offloads work onto the handler thread {@link |
| * #mHandlerThread} to keep unlock time low. |
| */ |
| void initializeService() { |
| postToHandler( |
| () -> { |
| Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "backup init"); |
| if (mGlobalDisable) { |
| Slog.i(TAG, "Backup service not supported"); |
| return; |
| } |
| synchronized (mStateLock) { |
| if (mService == null) { |
| mService = createBackupManagerService(); |
| } |
| } |
| Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); |
| }); |
| } |
| |
| /** |
| * Called from {@link BackupManagerService.Lifecycle} when a user {@code userId} is unlocked. |
| * Starts the backup service for this user if backup is active for this user. Offloads work onto |
| * the handler thread {@link #mHandlerThread} to keep unlock time low. |
| */ |
| void unlockUser(int userId) { |
| postToHandler(() -> startServiceForUser(userId)); |
| } |
| |
| private void startServiceForUser(int userId) { |
| // We know that the user is unlocked here because it is called from setBackupServiceActive |
| // and unlockUser which have these guarantees. So we can check if the file exists. |
| if (mService != null && isBackupActivatedForUser(userId)) { |
| Slog.i(TAG, "Starting service for user: " + userId); |
| mService.startServiceForUser(userId); |
| } |
| } |
| |
| /** |
| * Called from {@link BackupManagerService.Lifecycle} when a user {@code userId} is stopped. |
| * Offloads work onto the handler thread {@link #mHandlerThread} to keep stopping time low. |
| */ |
| void stopUser(int userId) { |
| postToHandler( |
| () -> { |
| if (mService != null) { |
| Slog.i(TAG, "Stopping service for user: " + userId); |
| mService.stopServiceForUser(userId); |
| } |
| }); |
| } |
| |
| /** |
| * The system user and managed profiles can only be acted on by callers in the system or root |
| * processes. Other users can be acted on by callers who have both android.permission.BACKUP and |
| * android.permission.INTERACT_ACROSS_USERS_FULL permissions. |
| */ |
| private void enforcePermissionsOnUser(int userId) throws SecurityException { |
| boolean isRestrictedUser = |
| userId == UserHandle.USER_SYSTEM |
| || getUserManager().getUserInfo(userId).isManagedProfile(); |
| |
| if (isRestrictedUser) { |
| int caller = binderGetCallingUid(); |
| if (caller != Process.SYSTEM_UID && caller != Process.ROOT_UID) { |
| throw new SecurityException("No permission to configure backup activity"); |
| } |
| } else { |
| mContext.enforceCallingOrSelfPermission( |
| Manifest.permission.BACKUP, "No permission to configure backup activity"); |
| mContext.enforceCallingOrSelfPermission( |
| Manifest.permission.INTERACT_ACROSS_USERS_FULL, |
| "No permission to configure backup activity"); |
| } |
| } |
| |
| /** |
| * Only privileged callers should be changing the backup state. Deactivating backup in the |
| * system user also deactivates backup in all users. We are not guaranteed that {@code userId} |
| * is unlocked at this point yet, so handle both cases. |
| */ |
| public void setBackupServiceActive(int userId, boolean makeActive) { |
| enforcePermissionsOnUser(userId); |
| |
| // In Q, backup is OFF by default for non-system users. In the future, we will change that |
| // to ON unless backup was explicitly deactivated with a (permissioned) call to |
| // setBackupServiceActive. |
| // Therefore, remember this for use in the future. Basically the default in the future will |
| // be: rememberFile.exists() ? rememberFile.value() : ON |
| // Note that this has to be done right after the permission checks and before any other |
| // action since we need to remember that a permissioned call was made irrespective of |
| // whether the call changes the state or not. |
| if (userId != UserHandle.USER_SYSTEM) { |
| try { |
| File rememberFile = getRememberActivatedFileForNonSystemUser(userId); |
| createFile(rememberFile); |
| RandomAccessFileUtils.writeBoolean(rememberFile, makeActive); |
| } catch (IOException e) { |
| Slog.e(TAG, "Unable to persist backup service activity", e); |
| } |
| } |
| |
| if (mGlobalDisable) { |
| Slog.i(TAG, "Backup service not supported"); |
| return; |
| } |
| |
| synchronized (mStateLock) { |
| Slog.i(TAG, "Making backup " + (makeActive ? "" : "in") + "active"); |
| if (makeActive) { |
| if (mService == null) { |
| mService = createBackupManagerService(); |
| } |
| try { |
| activateBackupForUserLocked(userId); |
| } catch (IOException e) { |
| Slog.e(TAG, "Unable to persist backup service activity"); |
| } |
| |
| // If the user is unlocked, we can start the backup service for it. Otherwise we |
| // will start the service when the user is unlocked as part of its unlock callback. |
| if (getUserManager().isUserUnlocked(userId)) { |
| // Clear calling identity as initialization enforces the system identity but we |
| // can be coming from shell. |
| long oldId = Binder.clearCallingIdentity(); |
| try { |
| startServiceForUser(userId); |
| } finally { |
| Binder.restoreCallingIdentity(oldId); |
| } |
| } |
| } else { |
| try { |
| //TODO(b/121198006): what if this throws an exception? |
| deactivateBackupForUserLocked(userId); |
| } catch (IOException e) { |
| Slog.e(TAG, "Unable to persist backup service inactivity"); |
| } |
| //TODO(b/121198006): loop through active users that have work profile and |
| // stop them as well. |
| stopUser(userId); |
| } |
| } |
| } |
| |
| // IBackupManager binder API |
| |
| /** |
| * Querying activity state of backup service. Calling this method before initialize yields |
| * undefined result. |
| * |
| * @param userId The user in which the activity state of backup service is queried. |
| * @return true if the service is active. |
| */ |
| @Override |
| public boolean isBackupServiceActive(int userId) { |
| synchronized (mStateLock) { |
| return mService != null && isBackupActivatedForUser(userId); |
| } |
| } |
| |
| @Override |
| public void dataChangedForUser(int userId, String packageName) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.dataChanged(userId, packageName); |
| } |
| } |
| |
| @Override |
| public void dataChanged(String packageName) throws RemoteException { |
| dataChangedForUser(binderGetCallingUserId(), packageName); |
| } |
| |
| @Override |
| public void initializeTransportsForUser( |
| int userId, String[] transportNames, IBackupObserver observer) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.initializeTransports(userId, transportNames, observer); |
| } |
| } |
| |
| @Override |
| public void clearBackupDataForUser(int userId, String transportName, String packageName) |
| throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.clearBackupData(userId, transportName, packageName); |
| } |
| } |
| |
| @Override |
| public void clearBackupData(String transportName, String packageName) |
| throws RemoteException { |
| clearBackupDataForUser(binderGetCallingUserId(), transportName, packageName); |
| } |
| |
| @Override |
| public void agentConnectedForUser(int userId, String packageName, IBinder agent) |
| throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.agentConnected(userId, packageName, agent); |
| } |
| } |
| |
| @Override |
| public void agentConnected(String packageName, IBinder agent) throws RemoteException { |
| agentConnectedForUser(binderGetCallingUserId(), packageName, agent); |
| } |
| |
| @Override |
| public void agentDisconnectedForUser(int userId, String packageName) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.agentDisconnected(userId, packageName); |
| } |
| } |
| |
| @Override |
| public void agentDisconnected(String packageName) throws RemoteException { |
| agentDisconnectedForUser(binderGetCallingUserId(), packageName); |
| } |
| |
| @Override |
| public void restoreAtInstallForUser(int userId, String packageName, int token) |
| throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.restoreAtInstall(userId, packageName, token); |
| } |
| } |
| |
| @Override |
| public void restoreAtInstall(String packageName, int token) throws RemoteException { |
| restoreAtInstallForUser(binderGetCallingUserId(), packageName, token); |
| } |
| |
| @Override |
| public void setBackupEnabledForUser(@UserIdInt int userId, boolean isEnabled) |
| throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.setBackupEnabled(userId, isEnabled); |
| } |
| } |
| |
| @Override |
| public void setBackupEnabled(boolean isEnabled) throws RemoteException { |
| setBackupEnabledForUser(binderGetCallingUserId(), isEnabled); |
| } |
| |
| @Override |
| public void setAutoRestoreForUser(int userId, boolean doAutoRestore) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.setAutoRestore(userId, doAutoRestore); |
| } |
| } |
| |
| @Override |
| public void setAutoRestore(boolean doAutoRestore) throws RemoteException { |
| setAutoRestoreForUser(binderGetCallingUserId(), doAutoRestore); |
| } |
| |
| @Override |
| public boolean isBackupEnabledForUser(@UserIdInt int userId) throws RemoteException { |
| return isUserReadyForBackup(userId) && mService.isBackupEnabled(userId); |
| } |
| |
| @Override |
| public boolean isBackupEnabled() throws RemoteException { |
| return isBackupEnabledForUser(binderGetCallingUserId()); |
| } |
| |
| @Override |
| public boolean setBackupPassword(String currentPw, String newPw) throws RemoteException { |
| int userId = binderGetCallingUserId(); |
| return (isUserReadyForBackup(userId)) && mService.setBackupPassword(currentPw, newPw); |
| } |
| |
| @Override |
| public boolean hasBackupPassword() throws RemoteException { |
| int userId = binderGetCallingUserId(); |
| return (isUserReadyForBackup(userId)) && mService.hasBackupPassword(); |
| } |
| |
| @Override |
| public void backupNowForUser(@UserIdInt int userId) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.backupNow(userId); |
| } |
| } |
| |
| @Override |
| public void backupNow() throws RemoteException { |
| backupNowForUser(binderGetCallingUserId()); |
| } |
| |
| public void adbBackup(@UserIdInt int userId, ParcelFileDescriptor fd, |
| boolean includeApks, boolean includeObbs, boolean includeShared, boolean doWidgets, |
| boolean allApps, boolean allIncludesSystem, boolean doCompress, boolean doKeyValue, |
| String[] packageNames) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.adbBackup(userId, fd, includeApks, includeObbs, includeShared, doWidgets, |
| allApps, allIncludesSystem, doCompress, doKeyValue, packageNames); |
| } |
| } |
| |
| @Override |
| public void fullTransportBackupForUser(int userId, String[] packageNames) |
| throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.fullTransportBackup(userId, packageNames); |
| } |
| } |
| |
| @Override |
| public void adbRestore(@UserIdInt int userId, ParcelFileDescriptor fd) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.adbRestore(userId, fd); |
| } |
| } |
| |
| @Override |
| public void acknowledgeFullBackupOrRestoreForUser( |
| int userId, |
| int token, |
| boolean allow, |
| String curPassword, |
| String encryptionPassword, |
| IFullBackupRestoreObserver observer) |
| throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.acknowledgeAdbBackupOrRestore(userId, token, allow, |
| curPassword, encryptionPassword, observer); |
| } |
| } |
| |
| @Override |
| public void acknowledgeFullBackupOrRestore(int token, boolean allow, String curPassword, |
| String encryptionPassword, IFullBackupRestoreObserver observer) |
| throws RemoteException { |
| acknowledgeFullBackupOrRestoreForUser( |
| binderGetCallingUserId(), token, allow, curPassword, encryptionPassword, observer); |
| } |
| |
| |
| @Override |
| public String getCurrentTransportForUser(int userId) throws RemoteException { |
| return (isUserReadyForBackup(userId)) ? mService.getCurrentTransport(userId) : null; |
| } |
| |
| @Override |
| public String getCurrentTransport() throws RemoteException { |
| return getCurrentTransportForUser(binderGetCallingUserId()); |
| } |
| |
| /** |
| * Returns the {@link ComponentName} of the host service of the selected transport or |
| * {@code null} if no transport selected or if the transport selected is not registered. |
| */ |
| @Override |
| @Nullable |
| public ComponentName getCurrentTransportComponentForUser(int userId) { |
| return (isUserReadyForBackup(userId)) ? mService.getCurrentTransportComponent(userId) |
| : null; |
| } |
| |
| @Override |
| public String[] listAllTransportsForUser(int userId) throws RemoteException { |
| return (isUserReadyForBackup(userId)) ? mService.listAllTransports(userId) : null; |
| } |
| |
| @Override |
| public String[] listAllTransports() throws RemoteException { |
| return listAllTransportsForUser(binderGetCallingUserId()); |
| } |
| |
| @Override |
| public ComponentName[] listAllTransportComponentsForUser(int userId) throws RemoteException { |
| return (isUserReadyForBackup(userId)) ? mService.listAllTransportComponents(userId) |
| : null; |
| } |
| |
| @Override |
| public String[] getTransportWhitelist() { |
| int userId = binderGetCallingUserId(); |
| return (isUserReadyForBackup(userId)) ? mService.getTransportWhitelist() : null; |
| } |
| |
| @Override |
| public void updateTransportAttributesForUser( |
| int userId, |
| ComponentName transportComponent, |
| String name, |
| @Nullable Intent configurationIntent, |
| String currentDestinationString, |
| @Nullable Intent dataManagementIntent, |
| CharSequence dataManagementLabel) { |
| if (isUserReadyForBackup(userId)) { |
| mService.updateTransportAttributes( |
| userId, |
| transportComponent, |
| name, |
| configurationIntent, |
| currentDestinationString, |
| dataManagementIntent, |
| dataManagementLabel); |
| } |
| } |
| |
| @Override |
| public String selectBackupTransportForUser(int userId, String transport) |
| throws RemoteException { |
| return (isUserReadyForBackup(userId)) ? mService.selectBackupTransport(userId, transport) |
| : null; |
| } |
| |
| @Override |
| public String selectBackupTransport(String transport) throws RemoteException { |
| return selectBackupTransportForUser(binderGetCallingUserId(), transport); |
| } |
| |
| @Override |
| public void selectBackupTransportAsyncForUser(int userId, ComponentName transport, |
| ISelectBackupTransportCallback listener) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.selectBackupTransportAsync(userId, transport, listener); |
| } else { |
| if (listener != null) { |
| try { |
| listener.onFailure(BackupManager.ERROR_BACKUP_NOT_ALLOWED); |
| } catch (RemoteException ex) { |
| // ignore |
| } |
| } |
| } |
| } |
| |
| @Override |
| public Intent getConfigurationIntentForUser(int userId, String transport) |
| throws RemoteException { |
| return isUserReadyForBackup(userId) ? mService.getConfigurationIntent(userId, transport) |
| : null; |
| } |
| |
| @Override |
| public Intent getConfigurationIntent(String transport) |
| throws RemoteException { |
| return getConfigurationIntentForUser(binderGetCallingUserId(), transport); |
| } |
| |
| @Override |
| public String getDestinationStringForUser(int userId, String transport) throws RemoteException { |
| return isUserReadyForBackup(userId) ? mService.getDestinationString(userId, transport) |
| : null; |
| } |
| |
| @Override |
| public String getDestinationString(String transport) throws RemoteException { |
| return getDestinationStringForUser(binderGetCallingUserId(), transport); |
| } |
| |
| @Override |
| public Intent getDataManagementIntentForUser(int userId, String transport) |
| throws RemoteException { |
| return isUserReadyForBackup(userId) ? mService.getDataManagementIntent(userId, transport) |
| : null; |
| } |
| |
| @Override |
| public Intent getDataManagementIntent(String transport) |
| throws RemoteException { |
| return getDataManagementIntentForUser(binderGetCallingUserId(), transport); |
| } |
| |
| @Override |
| public CharSequence getDataManagementLabelForUser(int userId, String transport) |
| throws RemoteException { |
| return isUserReadyForBackup(userId) ? mService.getDataManagementLabel(userId, transport) |
| : null; |
| } |
| |
| @Override |
| public IRestoreSession beginRestoreSessionForUser( |
| int userId, String packageName, String transportID) throws RemoteException { |
| return isUserReadyForBackup(userId) ? mService.beginRestoreSession(userId, packageName, |
| transportID) : null; |
| } |
| |
| @Override |
| public void opCompleteForUser(int userId, int token, long result) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.opComplete(userId, token, result); |
| } |
| } |
| |
| @Override |
| public void opComplete(int token, long result) throws RemoteException { |
| opCompleteForUser(binderGetCallingUserId(), token, result); |
| } |
| |
| @Override |
| public long getAvailableRestoreTokenForUser(int userId, String packageName) { |
| return isUserReadyForBackup(userId) ? mService.getAvailableRestoreToken(userId, |
| packageName) : 0; |
| } |
| |
| @Override |
| public boolean isAppEligibleForBackupForUser(int userId, String packageName) { |
| return isUserReadyForBackup(userId) && mService.isAppEligibleForBackup(userId, |
| packageName); |
| } |
| |
| @Override |
| public String[] filterAppsEligibleForBackupForUser(int userId, String[] packages) { |
| return isUserReadyForBackup(userId) ? mService.filterAppsEligibleForBackup(userId, |
| packages) : null; |
| } |
| |
| @Override |
| public int requestBackupForUser(@UserIdInt int userId, String[] packages, IBackupObserver |
| observer, IBackupManagerMonitor monitor, int flags) throws RemoteException { |
| if (!isUserReadyForBackup(userId)) { |
| return BackupManager.ERROR_BACKUP_NOT_ALLOWED; |
| } |
| return mService.requestBackup(userId, packages, observer, monitor, flags); |
| } |
| |
| @Override |
| public int requestBackup(String[] packages, IBackupObserver observer, |
| IBackupManagerMonitor monitor, int flags) throws RemoteException { |
| return requestBackupForUser(binderGetCallingUserId(), packages, |
| observer, monitor, flags); |
| } |
| |
| @Override |
| public void cancelBackupsForUser(@UserIdInt int userId) throws RemoteException { |
| if (isUserReadyForBackup(userId)) { |
| mService.cancelBackups(userId); |
| } |
| } |
| |
| @Override |
| public void cancelBackups() throws RemoteException { |
| cancelBackupsForUser(binderGetCallingUserId()); |
| } |
| |
| @Override |
| @Nullable public UserHandle getUserForAncestralSerialNumber(long ancestralSerialNumber) { |
| if (mService != null) { |
| return mService.getUserForAncestralSerialNumber(ancestralSerialNumber); |
| } |
| return null; |
| } |
| |
| @Override |
| public void setAncestralSerialNumber(long ancestralSerialNumber) { |
| if (mService != null) { |
| mService.setAncestralSerialNumber(ancestralSerialNumber); |
| } |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; |
| int userId = binderGetCallingUserId(); |
| if (isUserReadyForBackup(userId)) { |
| mService.dump(fd, pw, args); |
| } else { |
| pw.println("Inactive"); |
| } |
| } |
| |
| // Full backup/restore entry points - non-Binder; called directly |
| // by the full-backup scheduled job |
| /* package */ boolean beginFullBackup(@UserIdInt int userId, FullBackupJob scheduledJob) { |
| return (isUserReadyForBackup(userId)) && mService.beginFullBackup(userId, scheduledJob); |
| } |
| |
| /* package */ void endFullBackup(@UserIdInt int userId) { |
| if (isUserReadyForBackup(userId)) { |
| mService.endFullBackup(userId); |
| } |
| } |
| } |
