| /* |
| * Copyright (C) 2016 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.dialer.backup; |
| |
| import android.annotation.TargetApi; |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Build.VERSION_CODES; |
| import android.provider.VoicemailContract; |
| import android.provider.VoicemailContract.Voicemails; |
| import android.support.annotation.NonNull; |
| import android.support.annotation.Nullable; |
| import android.util.Pair; |
| import com.android.dialer.backup.nano.VoicemailInfo; |
| import com.android.dialer.common.ConfigProviderBindings; |
| import com.android.dialer.common.LogUtil; |
| import com.google.common.io.ByteStreams; |
| import com.google.common.io.Files; |
| import com.google.protobuf.nano.MessageNano; |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| /** Helper functions for DialerBackupAgent */ |
| public class DialerBackupUtils { |
| // Backup voicemails up to 20MB |
| static long maxVoicemailSizeToBackup = 20000000L; |
| static final String RESTORED_COLUMN = "restored"; |
| |
| private DialerBackupUtils() {} |
| |
| public static void copyAudioBytesToContentUri( |
| @NonNull byte[] audioBytesArray, @NonNull OutputStream restoreStream) throws IOException { |
| LogUtil.i("DialerBackupUtils.copyStream", "audioByteArray length: " + audioBytesArray.length); |
| |
| ByteArrayInputStream decodedStream = new ByteArrayInputStream(audioBytesArray); |
| LogUtil.i( |
| "DialerBackupUtils.copyStream", "decodedStream.available: " + decodedStream.available()); |
| |
| ByteStreams.copy(decodedStream, restoreStream); |
| } |
| |
| public static @Nullable byte[] audioStreamToByteArray(@NonNull InputStream stream) |
| throws IOException { |
| ByteArrayOutputStream buffer = new ByteArrayOutputStream(); |
| if (stream.available() > 0) { |
| ByteStreams.copy(stream, buffer); |
| } else { |
| LogUtil.i("DialerBackupUtils.audioStreamToByteArray", "no audio stream to backup"); |
| } |
| return buffer.toByteArray(); |
| } |
| |
| public static void writeProtoToFile(@NonNull File file, @NonNull VoicemailInfo voicemailInfo) |
| throws IOException { |
| LogUtil.i( |
| "DialerBackupUtils.writeProtoToFile", |
| "backup " + voicemailInfo + " to " + file.getAbsolutePath()); |
| |
| byte[] bytes = MessageNano.toByteArray(voicemailInfo); |
| Files.write(bytes, file); |
| } |
| |
| /** Only restore voicemails that have the restored column in calllog (NMR2+ builds) */ |
| @TargetApi(VERSION_CODES.M) |
| public static boolean canRestoreVoicemails(ContentResolver contentResolver, Context context) { |
| try (Cursor cursor = contentResolver.query(Voicemails.CONTENT_URI, null, null, null, null)) { |
| // Restored column only exists in NMR2 and above builds. |
| if (cursor.getColumnIndex(RESTORED_COLUMN) != -1) { |
| LogUtil.i("DialerBackupUtils.canRestoreVoicemails", "Build supports restore"); |
| return true; |
| } else { |
| LogUtil.i("DialerBackupUtils.canRestoreVoicemails", "Build does not support restore"); |
| return false; |
| } |
| } |
| } |
| |
| public static VoicemailInfo protoFileToVoicemailInfo(@NonNull File file) throws IOException { |
| byte[] byteArray = Files.toByteArray(file); |
| return VoicemailInfo.parseFrom(byteArray); |
| } |
| |
| @TargetApi(VERSION_CODES.M) |
| public static VoicemailInfo convertVoicemailCursorRowToProto( |
| @NonNull Cursor cursor, @NonNull ContentResolver contentResolver) throws IOException { |
| |
| VoicemailInfo voicemailInfo = new VoicemailInfo(); |
| |
| for (int i = 0; i < cursor.getColumnCount(); ++i) { |
| String name = cursor.getColumnName(i); |
| String value = cursor.getString(i); |
| |
| LogUtil.i( |
| "DialerBackupUtils.convertVoicemailCursorRowToProto", |
| "column index: %d, column name: %s, column value: %s", |
| i, |
| name, |
| value); |
| |
| switch (name) { |
| case Voicemails.DATE: |
| voicemailInfo.date = value; |
| break; |
| case Voicemails.DELETED: |
| voicemailInfo.deleted = value; |
| break; |
| case Voicemails.DIRTY: |
| voicemailInfo.dirty = value; |
| break; |
| case Voicemails.DIR_TYPE: |
| voicemailInfo.dirType = value; |
| break; |
| case Voicemails.DURATION: |
| voicemailInfo.duration = value; |
| break; |
| case Voicemails.HAS_CONTENT: |
| voicemailInfo.hasContent = value; |
| break; |
| case Voicemails.IS_READ: |
| voicemailInfo.isRead = value; |
| break; |
| case Voicemails.ITEM_TYPE: |
| voicemailInfo.itemType = value; |
| break; |
| case Voicemails.LAST_MODIFIED: |
| voicemailInfo.lastModified = value; |
| break; |
| case Voicemails.MIME_TYPE: |
| voicemailInfo.mimeType = value; |
| break; |
| case Voicemails.NUMBER: |
| voicemailInfo.number = value; |
| break; |
| case Voicemails.PHONE_ACCOUNT_COMPONENT_NAME: |
| voicemailInfo.phoneAccountComponentName = value; |
| break; |
| case Voicemails.PHONE_ACCOUNT_ID: |
| voicemailInfo.phoneAccountId = value; |
| break; |
| case Voicemails.SOURCE_DATA: |
| voicemailInfo.sourceData = value; |
| break; |
| case Voicemails.SOURCE_PACKAGE: |
| voicemailInfo.sourcePackage = value; |
| break; |
| case Voicemails.TRANSCRIPTION: |
| voicemailInfo.transcription = value; |
| break; |
| case DialerBackupAgent.VOICEMAIL_URI: |
| try (InputStream audioStream = contentResolver.openInputStream(Uri.parse(value))) { |
| voicemailInfo.encodedVoicemailKey = audioStreamToByteArray(audioStream); |
| } |
| break; |
| default: |
| LogUtil.i( |
| "DialerBackupUtils.convertVoicemailCursorRowToProto", |
| "Not backing up column: %s, with value: %s", |
| name, |
| value); |
| break; |
| } |
| } |
| return voicemailInfo; |
| } |
| |
| public static Pair<ContentValues, byte[]> convertVoicemailProtoFileToContentValueAndAudioBytes( |
| @NonNull File file, Context context) throws IOException { |
| |
| VoicemailInfo voicemailInfo = DialerBackupUtils.protoFileToVoicemailInfo(file); |
| LogUtil.i( |
| "DialerBackupUtils.convertVoicemailProtoFileToContentValueAndEncodedAudio", |
| "file name: " |
| + file.getName() |
| + " voicemailInfo size: " |
| + voicemailInfo.getSerializedSize()); |
| |
| if (isDuplicate(context, voicemailInfo)) { |
| LogUtil.i( |
| "DialerBackupUtils.convertVoicemailProtoFileToContentValueAndEncodedAudio", |
| "voicemail already exists"); |
| return null; |
| } else { |
| ContentValues contentValues = new ContentValues(); |
| |
| if (!voicemailInfo.date.isEmpty()) { |
| contentValues.put(Voicemails.DATE, voicemailInfo.date); |
| } |
| if (!voicemailInfo.deleted.isEmpty()) { |
| contentValues.put(Voicemails.DELETED, voicemailInfo.deleted); |
| } |
| if (!voicemailInfo.dirty.isEmpty()) { |
| contentValues.put(Voicemails.DIRTY, voicemailInfo.dirty); |
| } |
| if (!voicemailInfo.duration.isEmpty()) { |
| contentValues.put(Voicemails.DURATION, voicemailInfo.duration); |
| } |
| if (!voicemailInfo.isRead.isEmpty()) { |
| contentValues.put(Voicemails.IS_READ, voicemailInfo.isRead); |
| } |
| if (!voicemailInfo.lastModified.isEmpty()) { |
| contentValues.put(Voicemails.LAST_MODIFIED, voicemailInfo.lastModified); |
| } |
| if (!voicemailInfo.mimeType.isEmpty()) { |
| contentValues.put(Voicemails.MIME_TYPE, voicemailInfo.mimeType); |
| } |
| if (!voicemailInfo.number.isEmpty()) { |
| contentValues.put(Voicemails.NUMBER, voicemailInfo.number); |
| } |
| if (!voicemailInfo.phoneAccountComponentName.isEmpty()) { |
| contentValues.put( |
| Voicemails.PHONE_ACCOUNT_COMPONENT_NAME, voicemailInfo.phoneAccountComponentName); |
| } |
| if (!voicemailInfo.phoneAccountId.isEmpty()) { |
| contentValues.put(Voicemails.PHONE_ACCOUNT_ID, voicemailInfo.phoneAccountId); |
| } |
| if (!voicemailInfo.sourceData.isEmpty()) { |
| contentValues.put(Voicemails.SOURCE_DATA, voicemailInfo.sourceData); |
| } |
| if (!voicemailInfo.sourcePackage.isEmpty()) { |
| contentValues.put(Voicemails.SOURCE_PACKAGE, voicemailInfo.sourcePackage); |
| } |
| if (!voicemailInfo.transcription.isEmpty()) { |
| contentValues.put(Voicemails.TRANSCRIPTION, voicemailInfo.transcription); |
| } |
| contentValues.put(VoicemailContract.Voicemails.HAS_CONTENT, 1); |
| contentValues.put(RESTORED_COLUMN, "1"); |
| contentValues.put(Voicemails.SOURCE_PACKAGE, getSourcePackage(context, voicemailInfo)); |
| |
| LogUtil.i( |
| "DialerBackupUtils.convertVoicemailProtoFileToContentValueAndEncodedAudio", |
| "cv: " + contentValues); |
| |
| return Pair.create(contentValues, voicemailInfo.encodedVoicemailKey); |
| } |
| } |
| |
| /** |
| * We should be using the system package name as the source package if there is no endless VM/VM |
| * archive present on the device. This is to separate pre-O (no endless VM) and O+ (endless VM) |
| * devices. This ensures that the source of truth for VMs is the VM server when endless VM is not |
| * enabled, and when endless VM/archived VMs is present, the source of truth for VMs is the device |
| * itself. |
| */ |
| private static String getSourcePackage(Context context, VoicemailInfo voicemailInfo) { |
| if (ConfigProviderBindings.get(context) |
| .getBoolean("voicemail_restore_force_system_source_package", false)) { |
| LogUtil.i("DialerBackupUtils.getSourcePackage", "forcing system source package"); |
| return "com.android.phone"; |
| } |
| if (ConfigProviderBindings.get(context) |
| .getBoolean("voicemail_restore_check_archive_for_source_package", true)) { |
| if ("1".equals(voicemailInfo.archived)) { |
| LogUtil.i( |
| "DialerBackupUtils.getSourcePackage", |
| "voicemail was archived, using app source package"); |
| // Using our app's source package will prevent the archived voicemail from being deleted by |
| // the system when it syncs with the voicemail server. In most cases the user will not see |
| // duplicate voicemails because this voicemail was archived and likely deleted from the |
| // voicemail server. |
| return context.getPackageName(); |
| } else { |
| // Use the system source package. This means that if the voicemail is not present on the |
| // voicemail server then the system will delete it when it syncs. |
| LogUtil.i( |
| "DialerBackupUtils.getSourcePackage", |
| "voicemail was not archived, using system source package"); |
| return "com.android.phone"; |
| } |
| } |
| // Use our app's source package. This means that if the system syncs voicemail from the server |
| // the user could potentially get duplicate voicemails. |
| LogUtil.i("DialerBackupUtils.getSourcePackage", "defaulting to using app source package"); |
| return context.getPackageName(); |
| } |
| |
| @TargetApi(VERSION_CODES.M) |
| private static boolean isDuplicate(Context context, VoicemailInfo voicemailInfo) { |
| // This checks for VM that might already exist, and doesn't restore them |
| try (Cursor cursor = |
| context |
| .getContentResolver() |
| .query( |
| VoicemailContract.Voicemails.CONTENT_URI, |
| null, |
| String.format( |
| "(%s = ? AND %s = ? AND %s = ?)", |
| Voicemails.NUMBER, Voicemails.DATE, Voicemails.DURATION), |
| new String[] {voicemailInfo.number, voicemailInfo.date, voicemailInfo.duration}, |
| null, |
| null)) { |
| if (cursor.moveToFirst() |
| && ConfigProviderBindings.get(context) |
| .getBoolean("enable_vm_restore_no_duplicate", true)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |