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Java
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package org.thoughtcrime.securesms.jobs;
import android.Manifest;
import androidx.annotation.NonNull;
import org.thoughtcrime.securesms.backup.BackupPassphrase;
import org.thoughtcrime.securesms.backup.FullBackupExporter;
import org.thoughtcrime.securesms.crypto.AttachmentSecretProvider;
import org.thoughtcrime.securesms.database.DatabaseFactory;
import org.thoughtcrime.securesms.database.NoExternalStorageException;
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import org.thoughtcrime.securesms.jobmanager.Data;
import org.thoughtcrime.securesms.jobmanager.Job;
import org.thoughtcrime.securesms.logging.Log;
import org.thoughtcrime.securesms.notifications.NotificationChannels;
import org.thoughtcrime.securesms.permissions.Permissions;
import org.thoughtcrime.securesms.service.GenericForegroundService;
import org.thoughtcrime.securesms.util.BackupUtil;
import org.thoughtcrime.securesms.util.StorageUtil;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
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import network.loki.messenger.R;
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public class LocalBackupJob extends BaseJob {
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public static final String KEY = "LocalBackupJob";
private static final String TAG = LocalBackupJob.class.getSimpleName();
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public LocalBackupJob() {
this(new Job.Parameters.Builder()
.setQueue("__LOCAL_BACKUP__")
.setMaxInstances(1)
.setMaxAttempts(3)
.build());
}
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private LocalBackupJob(@NonNull Job.Parameters parameters) {
super(parameters);
}
@Override
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public @NonNull Data serialize() {
return Data.EMPTY;
}
@Override
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public @NonNull String getFactoryKey() {
return KEY;
}
@Override
public void onRun() throws NoExternalStorageException, IOException {
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Log.i(TAG, "Executing backup job...");
if (!Permissions.hasAll(context, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
throw new IOException("No external storage permission!");
}
GenericForegroundService.startForegroundTask(context,
context.getString(R.string.LocalBackupJob_creating_backup),
NotificationChannels.BACKUPS,
R.drawable.ic_launcher_foreground);
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// TODO: Maybe create a new backup icon like ic_signal_backup?
try {
String backupPassword = BackupPassphrase.get(context);
File backupDirectory = StorageUtil.getBackupDirectory();
String timestamp = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.US).format(new Date());
String fileName = String.format("session-%s.backup", timestamp);
File backupFile = new File(backupDirectory, fileName);
if (backupFile.exists()) {
throw new IOException("Backup file already exists?");
}
if (backupPassword == null) {
throw new IOException("Backup password is null");
}
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File tempFile = File.createTempFile("backup", "tmp", StorageUtil.getBackupCacheDirectory(context));
FullBackupExporter.export(context,
AttachmentSecretProvider.getInstance(context).getOrCreateAttachmentSecret(),
DatabaseFactory.getBackupDatabase(context),
tempFile,
backupPassword);
if (!tempFile.renameTo(backupFile)) {
tempFile.delete();
throw new IOException("Renaming temporary backup file failed!");
}
BackupUtil.deleteOldBackups();
} finally {
GenericForegroundService.stopForegroundTask(context);
}
}
@Override
public boolean onShouldRetry(@NonNull Exception e) {
return false;
}
@Override
public void onCanceled() {
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}
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public static class Factory implements Job.Factory<LocalBackupJob> {
@Override
public @NonNull LocalBackupJob create(@NonNull Parameters parameters, @NonNull Data data) {
return new LocalBackupJob(parameters);
}
}
}