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package se.leap.bitmaskclient.tor;
/**
* Copyright (c) 2021 LEAP Encryption Access Project and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import static se.leap.bitmaskclient.tor.TorNotificationManager.TOR_SERVICE_NOTIFICATION_ID;
import static se.leap.bitmaskclient.tor.TorStatusObservable.waitUntil;
import android.app.Notification;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.util.Log;
import androidx.annotation.WorkerThread;
import org.torproject.jni.TorService;
import java.util.concurrent.TimeoutException;
import se.leap.bitmaskclient.base.utils.PreferenceHelper;
public class TorServiceCommand {
private static String TAG = TorServiceCommand.class.getSimpleName();
// we bind the service before starting it as foreground service so that we avoid startForeground related RemoteExceptions
@WorkerThread
public static boolean startTorService(Context context, String action) throws InterruptedException {
Log.d(TAG, "startTorService");
try {
if (TorStatusObservable.isCancelled()) {
waitUntil(TorServiceCommand::isNotCancelled, 30);
}
} catch (TimeoutException e) {
e.printStackTrace();
}
TorServiceConnection torServiceConnection = initTorServiceConnection(context);
Log.d(TAG, "startTorService foreground: " + (torServiceConnection != null));
boolean startedForeground = false;
if (torServiceConnection == null) {
return startedForeground;
}
try {
Intent torServiceIntent = new Intent(context, TorService.class);
torServiceIntent.setAction(action);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
Notification notification = TorNotificationManager.buildTorForegroundNotification(context.getApplicationContext());
//noinspection NewApi
context.getApplicationContext().startForegroundService(torServiceIntent);
torServiceConnection.getService().startForeground(TOR_SERVICE_NOTIFICATION_ID, notification);
} else {
context.getApplicationContext().startService(torServiceIntent);
}
startedForeground = true;
} catch (IllegalStateException e) {
e.printStackTrace();
}
if (torServiceConnection != null) {
torServiceConnection.close();
}
return startedForeground;
}
@WorkerThread
public static void stopTorService(Context context) {
if (TorStatusObservable.getStatus() == TorStatusObservable.TorStatus.STOPPING ||
TorStatusObservable.getStatus() == TorStatusObservable.TorStatus.OFF) {
return;
}
TorStatusObservable.markCancelled();
try {
Intent torServiceIntent = new Intent(context, TorService.class);
torServiceIntent.setAction(TorService.ACTION_STOP);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
//noinspection NewApi
context.getApplicationContext().startService(torServiceIntent);
} else {
context.getApplicationContext().startService(torServiceIntent);
}
} catch (IllegalStateException e) {
e.printStackTrace();
}
}
public static void stopTorServiceAsync(Context context) {
if (!TorStatusObservable.isRunning()) {
return;
}
TorStatusObservable.markCancelled();
new Thread(() -> stopTorService(context)).start();
}
@WorkerThread
public static int getHttpTunnelPort(Context context) {
try {
TorServiceConnection torServiceConnection = initTorServiceConnection(context);
if (torServiceConnection != null) {
int tunnelPort = torServiceConnection.getService().getHttpTunnelPort();
torServiceConnection.close();
return tunnelPort;
}
} catch (InterruptedException | IllegalStateException e) {
e.printStackTrace();
}
return -1;
}
private static boolean isNotCancelled() {
return !TorStatusObservable.isCancelled();
}
private static TorServiceConnection initTorServiceConnection(Context context) throws InterruptedException, IllegalStateException {
Log.d(TAG, "initTorServiceConnection");
if (PreferenceHelper.getUseSnowflake()) {
Log.d(TAG, "serviceConnection is still null");
if (!TorService.hasClientTransportPlugin()) {
TorService.setClientTransportPlugin(new ClientTransportPlugin(context.getApplicationContext()));
}
return new TorServiceConnection(context);
}
return null;
}
}
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