| /* |
| * Copyright (C) 2018 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 android.content.rollback; |
| |
| import android.annotation.NonNull; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SystemApi; |
| import android.annotation.SystemService; |
| import android.content.Context; |
| import android.content.IntentSender; |
| import android.content.pm.ParceledListSlice; |
| import android.content.pm.VersionedPackage; |
| import android.os.RemoteException; |
| |
| import java.util.List; |
| |
| /** |
| * Offers the ability to rollback packages after upgrade. |
| * <p> |
| * For packages installed with rollbacks enabled, the RollbackManager can be |
| * used to initiate rollback of those packages for a limited time period after |
| * upgrade. |
| * |
| * @see PackageInstaller.SessionParams#setEnableRollback() |
| * @hide |
| */ |
| @SystemApi |
| @SystemService(Context.ROLLBACK_SERVICE) |
| public final class RollbackManager { |
| private final String mCallerPackageName; |
| private final IRollbackManager mBinder; |
| |
| /** {@hide} */ |
| public RollbackManager(Context context, IRollbackManager binder) { |
| mCallerPackageName = context.getPackageName(); |
| mBinder = binder; |
| } |
| |
| /** |
| * Returns a list of all currently available rollbacks. |
| * |
| * @throws SecurityException if the caller does not have the |
| * MANAGE_ROLLBACKS permission. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ROLLBACKS) |
| public List<RollbackInfo> getAvailableRollbacks() { |
| try { |
| return mBinder.getAvailableRollbacks().getList(); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Gets the list of all recently committed rollbacks. |
| * This is for the purposes of preventing re-install of a bad version of a |
| * package and monitoring the status of a staged rollback. |
| * <p> |
| * Returns an empty list if there are no recently committed rollbacks. |
| * <p> |
| * To avoid having to keep around complete rollback history forever on a |
| * device, the returned list of rollbacks is only guaranteed to include |
| * rollbacks that are still relevant. A rollback is no longer considered |
| * relevant if the package is subsequently uninstalled or upgraded |
| * (without the possibility of rollback) to a higher version code than was |
| * rolled back from. |
| * |
| * @return the recently committed rollbacks |
| * @throws SecurityException if the caller does not have the |
| * MANAGE_ROLLBACKS permission. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ROLLBACKS) |
| public @NonNull List<RollbackInfo> getRecentlyCommittedRollbacks() { |
| try { |
| return mBinder.getRecentlyExecutedRollbacks().getList(); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Status of a rollback commit. Will be one of |
| * {@link #STATUS_SUCCESS}, {@link #STATUS_FAILURE}, |
| * {@link #STATUS_FAILURE_ROLLBACK_UNAVAILABLE}, {@link #STATUS_FAILURE_INSTALL} |
| * |
| * @see Intent#getIntExtra(String, int) |
| */ |
| public static final String EXTRA_STATUS = "android.content.rollback.extra.STATUS"; |
| |
| /** |
| * Detailed string representation of the status, including raw details that |
| * are useful for debugging. |
| * |
| * @see Intent#getStringExtra(String) |
| */ |
| public static final String EXTRA_STATUS_MESSAGE = |
| "android.content.rollback.extra.STATUS_MESSAGE"; |
| |
| /** |
| * The rollback was successfully committed. |
| */ |
| public static final int STATUS_SUCCESS = 0; |
| |
| /** |
| * The rollback could not be committed due to some generic failure. |
| * |
| * @see #EXTRA_STATUS_MESSAGE |
| */ |
| public static final int STATUS_FAILURE = 1; |
| |
| /** |
| * The rollback could not be committed because it was no longer available. |
| * |
| * @see #EXTRA_STATUS_MESSAGE |
| */ |
| public static final int STATUS_FAILURE_ROLLBACK_UNAVAILABLE = 2; |
| |
| /** |
| * The rollback failed to install successfully. |
| * |
| * @see #EXTRA_STATUS_MESSAGE |
| */ |
| public static final int STATUS_FAILURE_INSTALL = 3; |
| |
| /** |
| * Commit the rollback with given id, rolling back all versions of the |
| * packages to the last good versions previously installed on the device |
| * as specified in the corresponding RollbackInfo object. The |
| * rollback will fail if any of the installed packages or available |
| * rollbacks are inconsistent with the versions specified in the given |
| * rollback object, which can happen if a package has been updated or a |
| * rollback expired since the rollback object was retrieved from |
| * {@link #getAvailableRollbacks()}. |
| * |
| * @param rollbackId ID of the rollback to commit |
| * @param causePackages package versions to record as the motivation for this |
| * rollback. |
| * @param statusReceiver where to deliver the results. Intents sent to |
| * this receiver contain {@link #EXTRA_STATUS} |
| * and {@link #EXTRA_STATUS_MESSAGE}. |
| * @throws SecurityException if the caller does not have the |
| * MANAGE_ROLLBACKS permission. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ROLLBACKS) |
| public void commitRollback(int rollbackId, @NonNull List<VersionedPackage> causePackages, |
| @NonNull IntentSender statusReceiver) { |
| try { |
| mBinder.commitRollback(rollbackId, new ParceledListSlice(causePackages), |
| mCallerPackageName, statusReceiver); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Reload all persisted rollback data from device storage. |
| * This API is meant to test that rollback state is properly preserved |
| * across device reboot, by simulating what happens on reboot without |
| * actually rebooting the device. |
| * |
| * @throws SecurityException if the caller does not have the |
| * MANAGE_ROLLBACKS permission. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ROLLBACKS) |
| public void reloadPersistedData() { |
| try { |
| mBinder.reloadPersistedData(); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Expire the rollback data for a given package. |
| * This API is meant to facilitate testing of rollback logic for |
| * expiring rollback data. Removes rollback data for available and |
| * recently committed rollbacks that contain the given package. |
| * |
| * @param packageName the name of the package to expire data for. |
| * @throws SecurityException if the caller does not have the |
| * MANAGE_ROLLBACKS permission. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ROLLBACKS) |
| public void expireRollbackForPackage(@NonNull String packageName) { |
| try { |
| mBinder.expireRollbackForPackage(packageName); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| } |