diff options
Diffstat (limited to 'packages')
4 files changed, 156 insertions, 0 deletions
diff --git a/packages/SharedStorageBackup/Android.mk b/packages/SharedStorageBackup/Android.mk new file mode 100644 index 0000000..1d4f4da --- /dev/null +++ b/packages/SharedStorageBackup/Android.mk @@ -0,0 +1,33 @@ +# +# Copyright (C) 2011 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. +# + +LOCAL_PATH := $(call my-dir) +include $(CLEAR_VARS) + +LOCAL_MODULE_TAGS := optional + +LOCAL_SRC_FILES := $(call all-java-files-under, src) + +LOCAL_PROGUARD_FLAG_FILES := proguard.flags + +LOCAL_PACKAGE_NAME := SharedStorageBackup +LOCAL_CERTIFICATE := platform + +include $(BUILD_PACKAGE) + +######################## +include $(call all-makefiles-under,$(LOCAL_PATH)) + diff --git a/packages/SharedStorageBackup/AndroidManifest.xml b/packages/SharedStorageBackup/AndroidManifest.xml new file mode 100644 index 0000000..258059c --- /dev/null +++ b/packages/SharedStorageBackup/AndroidManifest.xml @@ -0,0 +1,29 @@ +<?xml version="1.0" encoding="utf-8"?> +<!-- +** Copyright 2011, 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. +--> + +<manifest xmlns:android="http://schemas.android.com/apk/res/android" + package="com.android.sharedstoragebackup" > + + <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> + <uses-permission android:name="android.permission.WRITE_MEDIA_STORAGE" /> + + <application android:allowClearUserData="false" + android:permission="android.permission.CONFIRM_FULL_BACKUP" + android:fullBackupAgent=".SharedStorageAgent" + android:allowBackup="false" > + </application> +</manifest> diff --git a/packages/SharedStorageBackup/proguard.flags b/packages/SharedStorageBackup/proguard.flags new file mode 100644 index 0000000..f43cb81 --- /dev/null +++ b/packages/SharedStorageBackup/proguard.flags @@ -0,0 +1 @@ +-keep class com.android.sharedstoragebackup.SharedStorageAgent diff --git a/packages/SharedStorageBackup/src/com/android/sharedstoragebackup/SharedStorageAgent.java b/packages/SharedStorageBackup/src/com/android/sharedstoragebackup/SharedStorageAgent.java new file mode 100644 index 0000000..b02ca2e --- /dev/null +++ b/packages/SharedStorageBackup/src/com/android/sharedstoragebackup/SharedStorageAgent.java @@ -0,0 +1,93 @@ +package com.android.sharedstoragebackup; + +import android.app.backup.FullBackup; +import android.app.backup.FullBackupAgent; +import android.app.backup.BackupDataInput; +import android.app.backup.BackupDataOutput; +import android.content.Context; +import android.os.Environment; +import android.os.ParcelFileDescriptor; +import android.os.storage.StorageManager; +import android.os.storage.StorageVolume; +import android.util.Slog; + +import java.io.File; +import java.io.IOException; + +public class SharedStorageAgent extends FullBackupAgent { + static final String TAG = "SharedStorageAgent"; + static final boolean DEBUG = true; + + StorageVolume[] mVolumes; + + @Override + public void onCreate() { + StorageManager mgr = (StorageManager) getSystemService(Context.STORAGE_SERVICE); + if (mgr != null) { + mVolumes = mgr.getVolumeList(); + } else { + Slog.e(TAG, "Unable to access Storage Manager"); + } + } + + @Override + public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data, + ParcelFileDescriptor newState) throws IOException { + // If there are shared-storage volumes available, run the inherited directory- + // hierarchy backup process on them. By convention in the Storage Manager, the + // "primary" shared storage volume is first in the list. + if (mVolumes != null) { + for (int i = 0; i < mVolumes.length; i++) { + StorageVolume v = mVolumes[i]; + // Express the contents of volume N this way in the tar stream: + // shared/N/path/to/file + // The restore will then extract to the given volume + String domain = FullBackup.SHARED_PREFIX + i; + processTree(null, domain, v.getPath(), null, data); + } + } + } + + /** + * Incremental onRestore() implementation is not used. + */ + @Override + public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor newState) + throws IOException { + } + + /** + * Full restore of one file to shared storage + */ + @Override + public void onRestoreFile(ParcelFileDescriptor data, long size, + int type, String domain, String relpath, long mode, long mtime) + throws IOException { + Slog.d(TAG, "Shared restore: [ " + domain + " : " + relpath + "]"); + + File outFile = null; + + // The file path must be in the semantic form [number]/path/to/file... + int slash = relpath.indexOf('/'); + if (slash > 0) { + try { + int i = Integer.parseInt(relpath.substring(0, slash)); + if (i <= mVolumes.length) { + outFile = new File(mVolumes[i].getPath(), relpath.substring(slash + 1)); + if (DEBUG) Slog.i(TAG, " => " + outFile.getAbsolutePath()); + } else { + Slog.w(TAG, "Cannot restore data for unavailable volume " + i); + } + } catch (NumberFormatException e) { + if (DEBUG) Slog.w(TAG, "Bad volume number token: " + relpath.substring(0, slash)); + } + } else { + if (DEBUG) Slog.i(TAG, "Can't find volume-number token"); + } + if (outFile == null) { + Slog.e(TAG, "Skipping data with malformed path " + relpath); + } + + FullBackup.restoreToFile(data, size, type, mode, mtime, outFile, false); + } +} |