1/* 2 * Copyright (C) 2009 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 17package android.app.backup; 18 19import android.app.backup.IFullBackupRestoreObserver; 20import android.app.backup.IRestoreSession; 21import android.os.ParcelFileDescriptor; 22import android.content.Intent; 23 24/** 25 * Direct interface to the Backup Manager Service that applications invoke on. The only 26 * operation currently needed is a simple notification that the app has made changes to 27 * data it wishes to back up, so the system should run a backup pass. 28 * 29 * Apps will use the {@link android.app.backup.BackupManager} class rather than going through 30 * this Binder interface directly. 31 * 32 * {@hide} 33 */ 34interface IBackupManager { 35 /** 36 * Tell the system service that the caller has made changes to its 37 * data, and therefore needs to undergo an incremental backup pass. 38 * 39 * Any application can invoke this method for its own package, but 40 * only callers who hold the android.permission.BACKUP permission 41 * may invoke it for arbitrary packages. 42 */ 43 void dataChanged(String packageName); 44 45 /** 46 * Erase all backed-up data for the given package from the given storage 47 * destination. 48 * 49 * Any application can invoke this method for its own package, but 50 * only callers who hold the android.permission.BACKUP permission 51 * may invoke it for arbitrary packages. 52 */ 53 void clearBackupData(String transportName, String packageName); 54 55 /** 56 * Notifies the Backup Manager Service that an agent has become available. This 57 * method is only invoked by the Activity Manager. 58 */ 59 void agentConnected(String packageName, IBinder agent); 60 61 /** 62 * Notify the Backup Manager Service that an agent has unexpectedly gone away. 63 * This method is only invoked by the Activity Manager. 64 */ 65 void agentDisconnected(String packageName); 66 67 /** 68 * Notify the Backup Manager Service that an application being installed will 69 * need a data-restore pass. This method is only invoked by the Package Manager. 70 */ 71 void restoreAtInstall(String packageName, int token); 72 73 /** 74 * Enable/disable the backup service entirely. When disabled, no backup 75 * or restore operations will take place. Data-changed notifications will 76 * still be observed and collected, however, so that changes made while the 77 * mechanism was disabled will still be backed up properly if it is enabled 78 * at some point in the future. 79 * 80 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 81 */ 82 void setBackupEnabled(boolean isEnabled); 83 84 /** 85 * Enable/disable automatic restore of application data at install time. When 86 * enabled, installation of any package will involve the Backup Manager. If data 87 * exists for the newly-installed package, either from the device's current [enabled] 88 * backup dataset or from the restore set used in the last wholesale restore operation, 89 * that data will be supplied to the new package's restore agent before the package 90 * is made generally available for launch. 91 * 92 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 93 * 94 * @param doAutoRestore When true, enables the automatic app-data restore facility. When 95 * false, this facility will be disabled. 96 */ 97 void setAutoRestore(boolean doAutoRestore); 98 99 /** 100 * Indicate that any necessary one-time provisioning has occurred. 101 * 102 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 103 */ 104 void setBackupProvisioned(boolean isProvisioned); 105 106 /** 107 * Report whether the backup mechanism is currently enabled. 108 * 109 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 110 */ 111 boolean isBackupEnabled(); 112 113 /** 114 * Set the device's backup password. Returns {@code true} if the password was set 115 * successfully, {@code false} otherwise. Typically a failure means that an incorrect 116 * current password was supplied. 117 * 118 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 119 */ 120 boolean setBackupPassword(in String currentPw, in String newPw); 121 122 /** 123 * Reports whether a backup password is currently set. If not, then a null or empty 124 * "current password" argument should be passed to setBackupPassword(). 125 * 126 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 127 */ 128 boolean hasBackupPassword(); 129 130 /** 131 * Schedule an immediate backup attempt for all pending updates. This is 132 * primarily intended for transports to use when they detect a suitable 133 * opportunity for doing a backup pass. If there are no pending updates to 134 * be sent, no action will be taken. Even if some updates are pending, the 135 * transport will still be asked to confirm via the usual requestBackupTime() 136 * method. 137 * 138 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 139 */ 140 void backupNow(); 141 142 /** 143 * Write a full backup of the given package to the supplied file descriptor. 144 * The fd may be a socket or other non-seekable destination. If no package names 145 * are supplied, then every application on the device will be backed up to the output. 146 * 147 * <p>This method is <i>synchronous</i> -- it does not return until the backup has 148 * completed. 149 * 150 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 151 * 152 * @param fd The file descriptor to which a 'tar' file stream is to be written 153 * @param includeApks If <code>true</code>, the resulting tar stream will include the 154 * application .apk files themselves as well as their data. 155 * @param includeObbs If <code>true</code>, the resulting tar stream will include any 156 * application expansion (OBB) files themselves belonging to each application. 157 * @param includeShared If <code>true</code>, the resulting tar stream will include 158 * the contents of the device's shared storage (SD card or equivalent). 159 * @param allApps If <code>true</code>, the resulting tar stream will include all 160 * installed applications' data, not just those named in the <code>packageNames</code> 161 * parameter. 162 * @param allIncludesSystem If {@code true}, then {@code allApps} will be interpreted 163 * as including packages pre-installed as part of the system. If {@code false}, 164 * then setting {@code allApps} to {@code true} will mean only that all 3rd-party 165 * applications will be included in the dataset. 166 * @param packageNames The package names of the apps whose data (and optionally .apk files) 167 * are to be backed up. The <code>allApps</code> parameter supersedes this. 168 */ 169 void fullBackup(in ParcelFileDescriptor fd, boolean includeApks, boolean includeObbs, 170 boolean includeShared, boolean allApps, boolean allIncludesSystem, 171 in String[] packageNames); 172 173 /** 174 * Restore device content from the data stream passed through the given socket. The 175 * data stream must be in the format emitted by fullBackup(). 176 * 177 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 178 */ 179 void fullRestore(in ParcelFileDescriptor fd); 180 181 /** 182 * Confirm that the requested full backup/restore operation can proceed. The system will 183 * not actually perform the operation described to fullBackup() / fullRestore() unless the 184 * UI calls back into the Backup Manager to confirm, passing the correct token. At 185 * the same time, the UI supplies a callback Binder for progress notifications during 186 * the operation. 187 * 188 * <p>The password passed by the confirming entity must match the saved backup or 189 * full-device encryption password in order to perform a backup. If a password is 190 * supplied for restore, it must match the password used when creating the full 191 * backup dataset being used for restore. 192 * 193 * <p>Callers must hold the android.permission.BACKUP permission to use this method. 194 */ 195 void acknowledgeFullBackupOrRestore(int token, boolean allow, 196 in String curPassword, in String encryptionPassword, 197 IFullBackupRestoreObserver observer); 198 199 /** 200 * Identify the currently selected transport. Callers must hold the 201 * android.permission.BACKUP permission to use this method. 202 */ 203 String getCurrentTransport(); 204 205 /** 206 * Request a list of all available backup transports' names. Callers must 207 * hold the android.permission.BACKUP permission to use this method. 208 */ 209 String[] listAllTransports(); 210 211 /** 212 * Specify the current backup transport. Callers must hold the 213 * android.permission.BACKUP permission to use this method. 214 * 215 * @param transport The name of the transport to select. This should be one 216 * of {@link BackupManager.TRANSPORT_GOOGLE} or {@link BackupManager.TRANSPORT_ADB}. 217 * @return The name of the previously selected transport. If the given transport 218 * name is not one of the currently available transports, no change is made to 219 * the current transport setting and the method returns null. 220 */ 221 String selectBackupTransport(String transport); 222 223 /** 224 * Get the configuration Intent, if any, from the given transport. Callers must 225 * hold the android.permission.BACKUP permission in order to use this method. 226 * 227 * @param transport The name of the transport to query. 228 * @return An Intent to use with Activity#startActivity() to bring up the configuration 229 * UI supplied by the transport. If the transport has no configuration UI, it should 230 * return {@code null} here. 231 */ 232 Intent getConfigurationIntent(String transport); 233 234 /** 235 * Get the destination string supplied by the given transport. Callers must 236 * hold the android.permission.BACKUP permission in order to use this method. 237 * 238 * @param transport The name of the transport to query. 239 * @return A string describing the current backup destination. This string is used 240 * verbatim by the Settings UI as the summary text of the "configure..." item. 241 */ 242 String getDestinationString(String transport); 243 244 /** 245 * Begin a restore session. Either or both of packageName and transportID 246 * may be null. If packageName is non-null, then only the given package will be 247 * considered for restore. If transportID is null, then the restore will use 248 * the current active transport. 249 * <p> 250 * This method requires the android.permission.BACKUP permission <i>except</i> 251 * when transportID is null and packageName is the name of the caller's own 252 * package. In that case, the restore session returned is suitable for supporting 253 * the BackupManager.requestRestore() functionality via RestoreSession.restorePackage() 254 * without requiring the app to hold any special permission. 255 * 256 * @param packageName The name of the single package for which a restore will 257 * be requested. May be null, in which case all packages in the restore 258 * set can be restored. 259 * @param transportID The name of the transport to use for the restore operation. 260 * May be null, in which case the current active transport is used. 261 * @return An interface to the restore session, or null on error. 262 */ 263 IRestoreSession beginRestoreSession(String packageName, String transportID); 264 265 /** 266 * Notify the backup manager that a BackupAgent has completed the operation 267 * corresponding to the given token. 268 * 269 * @param token The transaction token passed to a BackupAgent's doBackup() or 270 * doRestore() method. 271 * {@hide} 272 */ 273 void opComplete(int token); 274} 275