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package se.leap.bitmaskclient.tor;
/**
* Copyright (c) 2021 LEAP Encryption Access Project and contributers
*
* 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 android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.os.Build;
import androidx.core.app.NotificationCompat;
import se.leap.bitmaskclient.R;
public class TorNotificationManager {
public final static int TOR_SERVICE_NOTIFICATION_ID = 10;
static final String NOTIFICATION_CHANNEL_NEWSTATUS_ID = "bitmask_tor_service_news";
private long lastNotificationTime = 0;
// debounce timeout in milliseconds
private final static long NOTIFICATION_DEBOUNCE_TIME = 500;
public TorNotificationManager() {}
public static Notification buildTorForegroundNotification(Context context) {
NotificationManager notificationManager = initNotificationManager(context);
if (notificationManager == null) {
return null;
}
NotificationCompat.Builder notificationBuilder = initNotificationBuilderDefaults(context);
return notificationBuilder
.setSmallIcon(R.drawable.ic_bridge_36)
.setWhen(System.currentTimeMillis())
.setContentText(context.getString(R.string.tor_started)).build();
}
public void buildTorNotification(Context context, String state, String message, int progress) {
if (shouldDropNotification()) {
return;
}
NotificationManager notificationManager = initNotificationManager(context);
if (notificationManager == null) {
return;
}
NotificationCompat.Builder notificationBuilder = initNotificationBuilderDefaults(context);
notificationBuilder
.setSmallIcon(R.drawable.ic_bridge_36)
.setWhen(System.currentTimeMillis())
.setStyle(new NotificationCompat.BigTextStyle().
setBigContentTitle(state).
bigText(message))
.setTicker(message)
.setContentTitle(state)
.setOnlyAlertOnce(true)
.setContentText(message);
if (progress > 0) {
notificationBuilder.setProgress(100, progress, false);
}
notificationManager.notify(TOR_SERVICE_NOTIFICATION_ID, notificationBuilder.build());
}
private boolean shouldDropNotification() {
long now = System.currentTimeMillis();
if (now - lastNotificationTime < NOTIFICATION_DEBOUNCE_TIME) {
return true;
}
lastNotificationTime = now;
return false;
}
private static NotificationManager initNotificationManager(Context context) {
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
if (notificationManager == null) {
return null;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
createNotificationChannel(context, notificationManager);
}
return notificationManager;
}
@TargetApi(26)
private static void createNotificationChannel(Context context, NotificationManager notificationManager) {
String appName = context.getString(R.string.app_name);
CharSequence name = context.getString(R.string.channel_name_tor_service, appName);
String description = context.getString(R.string.channel_description_tor_service, appName);
NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL_NEWSTATUS_ID,
name,
NotificationManager.IMPORTANCE_LOW);
channel.setSound(null, null);
channel.setDescription(description);
notificationManager.createNotificationChannel(channel);
}
private static NotificationCompat.Builder initNotificationBuilderDefaults(Context context) {
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context, NOTIFICATION_CHANNEL_NEWSTATUS_ID);
notificationBuilder.
setDefaults(Notification.DEFAULT_ALL).
setLocalOnly(true).
setAutoCancel(false);
return notificationBuilder;
}
public void cancelNotifications(Context context) {
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
if (notificationManager == null) {
return;
}
notificationManager.cancel(TOR_SERVICE_NOTIFICATION_ID);
}
}
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