95 lines
3.1 KiB
Java
95 lines
3.1 KiB
Java
package org.thoughtcrime.securesms.jobs;
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import android.Manifest;
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import android.content.Context;
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import android.support.annotation.NonNull;
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import android.util.Log;
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import org.thoughtcrime.securesms.backup.FullBackupExporter;
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import org.thoughtcrime.securesms.crypto.AttachmentSecretProvider;
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import org.thoughtcrime.securesms.database.DatabaseFactory;
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import org.thoughtcrime.securesms.database.NoExternalStorageException;
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import org.thoughtcrime.securesms.permissions.Permissions;
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import org.thoughtcrime.securesms.service.GenericForegroundService;
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import org.thoughtcrime.securesms.util.BackupUtil;
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import org.thoughtcrime.securesms.util.StorageUtil;
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import org.thoughtcrime.securesms.util.TextSecurePreferences;
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import org.whispersystems.jobqueue.JobParameters;
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import java.io.File;
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import java.io.IOException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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import java.util.concurrent.TimeUnit;
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public class LocalBackupJob extends ContextJob {
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private static final String TAG = LocalBackupJob.class.getSimpleName();
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public LocalBackupJob(@NonNull Context context) {
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super(context, JobParameters.newBuilder()
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.withGroupId("__LOCAL_BACKUP__")
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.withWakeLock(true, 10, TimeUnit.SECONDS)
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.create());
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}
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@Override
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public void onAdded() {}
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@Override
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public void onRun() throws NoExternalStorageException, IOException {
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Log.w(TAG, "Executing backup job...");
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if (!Permissions.hasAll(context, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
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throw new IOException("No external storage permission!");
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}
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GenericForegroundService.startForegroundTask(context, "Creating backup");
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try {
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String backupPassword = TextSecurePreferences.getBackupPassphrase(context);
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File backupDirectory = StorageUtil.getBackupDirectory();
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String timestamp = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.US).format(new Date());
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String fileName = String.format("signal-%s.backup", timestamp);
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File backupFile = new File(backupDirectory, fileName);
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if (backupFile.exists()) {
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throw new IOException("Backup file already exists?");
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}
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if (backupPassword == null) {
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throw new IOException("Backup password is null");
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}
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File tempFile = File.createTempFile("backup", "tmp", context.getExternalCacheDir());
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FullBackupExporter.export(context,
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AttachmentSecretProvider.getInstance(context).getOrCreateAttachmentSecret(),
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DatabaseFactory.getBackupDatabase(context),
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tempFile,
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backupPassword);
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if (!tempFile.renameTo(backupFile)) {
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tempFile.delete();
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throw new IOException("Renaming temporary backup file failed!");
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}
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BackupUtil.deleteOldBackups();
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} finally {
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GenericForegroundService.stopForegroundTask(context);
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}
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}
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@Override
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public boolean onShouldRetry(Exception e) {
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return false;
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}
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@Override
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public void onCanceled() {
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}
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}
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