2016-02-13 06:54:44 +00:00
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package eu.faircode.netguard;
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/*
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This file is part of NetGuard.
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NetGuard is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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NetGuard is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with NetGuard. If not, see <http://www.gnu.org/licenses/>.
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2017-12-24 09:12:10 +00:00
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Copyright 2015-2018 by Marcel Bokhorst (M66B)
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2016-02-13 06:54:44 +00:00
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*/
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2018-10-20 08:27:09 +00:00
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.database.Cursor;
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import android.net.Uri;
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2016-11-10 07:54:32 +00:00
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import android.os.AsyncTask;
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2016-02-13 06:54:44 +00:00
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import android.os.Bundle;
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2016-11-10 07:54:32 +00:00
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import android.util.Log;
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2018-10-20 08:27:09 +00:00
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import android.util.Xml;
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2016-11-10 07:54:32 +00:00
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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2016-02-13 06:54:44 +00:00
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import android.widget.ListView;
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2018-10-20 08:27:09 +00:00
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import android.widget.Toast;
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import org.xmlpull.v1.XmlSerializer;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.text.DateFormat;
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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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2016-02-13 06:54:44 +00:00
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2018-11-17 16:32:36 +00:00
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import androidx.appcompat.app.AppCompatActivity;
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2016-02-13 06:54:44 +00:00
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public class ActivityDns extends AppCompatActivity {
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private static final String TAG = "NetGuard.DNS";
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2018-10-20 08:27:09 +00:00
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private static final int REQUEST_EXPORT = 1;
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private boolean running;
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2016-11-10 07:54:32 +00:00
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private AdapterDns adapter = null;
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2016-02-13 06:54:44 +00:00
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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Util.setTheme(this);
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super.onCreate(savedInstanceState);
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setContentView(R.layout.resolving);
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getSupportActionBar().setTitle(R.string.setting_show_resolved);
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getSupportActionBar().setDisplayHomeAsUpEnabled(true);
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2017-08-05 08:27:27 +00:00
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ListView lvDns = findViewById(R.id.lvDns);
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2016-11-10 07:54:32 +00:00
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adapter = new AdapterDns(this, DatabaseHelper.getInstance(this).getDns());
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lvDns.setAdapter(adapter);
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2018-10-20 08:27:09 +00:00
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running = true;
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2016-11-10 07:54:32 +00:00
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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MenuInflater inflater = getMenuInflater();
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inflater.inflate(R.menu.dns, menu);
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return true;
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}
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2018-10-20 08:27:09 +00:00
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@Override
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public boolean onPrepareOptionsMenu(Menu menu) {
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PackageManager pm = getPackageManager();
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menu.findItem(R.id.menu_export).setEnabled(getIntentExport().resolveActivity(pm) != null);
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return super.onPrepareOptionsMenu(menu);
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}
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2016-11-10 07:54:32 +00:00
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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switch (item.getItemId()) {
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case R.id.menu_refresh:
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refresh();
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return true;
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2016-11-11 11:38:55 +00:00
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case R.id.menu_cleanup:
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cleanup();
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return true;
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2016-11-10 07:54:32 +00:00
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case R.id.menu_clear:
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2017-03-09 06:15:50 +00:00
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Util.areYouSure(this, R.string.menu_clear, new Util.DoubtListener() {
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@Override
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public void onSure() {
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clear();
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}
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});
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return true;
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2018-10-20 08:27:09 +00:00
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case R.id.menu_export:
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export();
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return true;
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2016-11-10 07:54:32 +00:00
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}
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return false;
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}
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private void refresh() {
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updateAdapter();
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}
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2016-11-11 11:38:55 +00:00
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private void cleanup() {
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new AsyncTask<Object, Object, Object>() {
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@Override
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protected Long doInBackground(Object... objects) {
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Log.i(TAG, "Cleanup DNS");
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DatabaseHelper.getInstance(ActivityDns.this).cleanupDns();
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return null;
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}
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@Override
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protected void onPostExecute(Object result) {
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2017-07-22 12:48:00 +00:00
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ServiceSinkhole.reload("DNS cleanup", ActivityDns.this, false);
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2016-11-11 11:38:55 +00:00
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updateAdapter();
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}
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2017-07-02 06:56:37 +00:00
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}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
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2016-11-11 11:38:55 +00:00
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}
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2016-11-10 07:54:32 +00:00
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private void clear() {
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new AsyncTask<Object, Object, Object>() {
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@Override
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protected Long doInBackground(Object... objects) {
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Log.i(TAG, "Clear DNS");
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DatabaseHelper.getInstance(ActivityDns.this).clearDns();
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return null;
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}
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@Override
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protected void onPostExecute(Object result) {
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2017-07-22 12:48:00 +00:00
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ServiceSinkhole.reload("DNS clear", ActivityDns.this, false);
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2016-11-10 07:54:32 +00:00
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updateAdapter();
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}
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2017-07-02 06:56:37 +00:00
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}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
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2016-11-10 07:54:32 +00:00
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}
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2018-10-20 08:27:09 +00:00
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private void export() {
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startActivityForResult(getIntentExport(), REQUEST_EXPORT);
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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Log.i(TAG, "onActivityResult request=" + requestCode + " result=" + requestCode + " ok=" + (resultCode == RESULT_OK));
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if (requestCode == REQUEST_EXPORT) {
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if (resultCode == RESULT_OK && data != null)
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handleExport(data);
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}
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}
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private Intent getIntentExport() {
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Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
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intent.addCategory(Intent.CATEGORY_OPENABLE);
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intent.setType("*/*"); // text/xml
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intent.putExtra(Intent.EXTRA_TITLE, "netguard_dns_" + new SimpleDateFormat("yyyyMMdd").format(new Date().getTime()) + ".xml");
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return intent;
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}
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private void handleExport(final Intent data) {
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new AsyncTask<Object, Object, Throwable>() {
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@Override
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protected Throwable doInBackground(Object... objects) {
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OutputStream out = null;
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try {
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Uri target = data.getData();
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Log.i(TAG, "Writing URI=" + target);
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out = getContentResolver().openOutputStream(target);
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xmlExport(out);
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return null;
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} catch (Throwable ex) {
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Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
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return ex;
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} finally {
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if (out != null)
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try {
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out.close();
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} catch (IOException ex) {
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Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
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}
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}
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}
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@Override
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protected void onPostExecute(Throwable ex) {
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if (running) {
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if (ex == null)
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Toast.makeText(ActivityDns.this, R.string.msg_completed, Toast.LENGTH_LONG).show();
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else
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Toast.makeText(ActivityDns.this, ex.toString(), Toast.LENGTH_LONG).show();
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}
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}
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}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
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}
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private void xmlExport(OutputStream out) throws IOException {
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XmlSerializer serializer = Xml.newSerializer();
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serializer.setOutput(out, "UTF-8");
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serializer.startDocument(null, true);
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serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
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serializer.startTag(null, "netguard");
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DateFormat df = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss Z", Locale.US); // RFC 822
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Cursor cursor = DatabaseHelper.getInstance(this).getDns();
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int colTime = cursor.getColumnIndex("time");
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int colQName = cursor.getColumnIndex("qname");
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int colAName = cursor.getColumnIndex("aname");
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int colResource = cursor.getColumnIndex("resource");
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int colTTL = cursor.getColumnIndex("ttl");
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while (cursor.moveToNext()) {
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long time = cursor.getLong(colTime);
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String qname = cursor.getString(colQName);
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String aname = cursor.getString(colAName);
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String resource = cursor.getString(colResource);
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int ttl = cursor.getInt(colTTL);
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serializer.startTag(null, "dns");
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serializer.attribute(null, "time", df.format(time));
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serializer.attribute(null, "qname", qname);
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serializer.attribute(null, "aname", aname);
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serializer.attribute(null, "resource", resource);
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serializer.attribute(null, "ttl", Integer.toString(ttl));
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serializer.endTag(null, "dns");
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}
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cursor.close();
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serializer.endTag(null, "netguard");
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serializer.endDocument();
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serializer.flush();
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}
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2016-11-10 07:54:32 +00:00
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private void updateAdapter() {
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if (adapter != null)
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adapter.changeCursor(DatabaseHelper.getInstance(this).getDns());
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2016-02-13 06:54:44 +00:00
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}
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@Override
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protected void onDestroy() {
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2018-10-20 08:27:09 +00:00
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running = false;
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2016-11-10 07:54:32 +00:00
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adapter = null;
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2016-02-13 06:54:44 +00:00
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super.onDestroy();
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}
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}
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