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-rw-r--r--app/java/src/DNSProxyConnection.java12
-rw-r--r--app/java/src/DNSProxyRunner.java28
-rw-r--r--app/java/src/DNSProxyService.java76
-rw-r--r--app/java/src/MainActivity.java13
4 files changed, 95 insertions, 34 deletions
diff --git a/app/java/src/DNSProxyConnection.java b/app/java/src/DNSProxyConnection.java
index f96af80..0573515 100644
--- a/app/java/src/DNSProxyConnection.java
+++ b/app/java/src/DNSProxyConnection.java
@@ -4,8 +4,6 @@ import android.os.ParcelFileDescriptor;
import android.util.Log;
-import java.io.IOException;
-
public class DNSProxyConnection {
public static String THREAD_NAME = "org.pihole.dnsproxy.service.thread";
@@ -20,8 +18,8 @@ public class DNSProxyConnection {
public void start() {
DNSProxyRunner runner = new DNSProxyRunner(this.service);
- runner.setOnEstablishListener(parcelFileDescriptor -> {
- this.networkInterface = parcelFileDescriptor;
+ runner.setOnEstablishListener(tunInterface -> {
+ this.networkInterface = tunInterface;
});
this.thread = new Thread(runner, DNSProxyConnection.THREAD_NAME);
@@ -30,10 +28,10 @@ public class DNSProxyConnection {
public void stop() {
try {
- this.thread.stop();
+ this.thread.interrupt();
this.networkInterface.close();
- } catch (IOException exception) {
- Log.e(DNSProxyService.LOG_TAG, "Connection failed", exception);
+ } catch (Exception exception) {
+ Log.e(DNSProxyService.LOG_TAG, "Closing VPN interface", exception);
}
}
}
diff --git a/app/java/src/DNSProxyRunner.java b/app/java/src/DNSProxyRunner.java
index 0c136e8..6a45413 100644
--- a/app/java/src/DNSProxyRunner.java
+++ b/app/java/src/DNSProxyRunner.java
@@ -1,5 +1,7 @@
package org.pihole.dnsproxy;
+import android.net.VpnService;
+
import android.os.ParcelFileDescriptor;
import android.util.Log;
@@ -14,6 +16,7 @@ import java.net.SocketAddress;
import java.nio.channels.DatagramChannel;
public class DNSProxyRunner implements Runnable {
+
public interface OnEstablishListener {
void onEstablish(ParcelFileDescriptor networkInterface);
}
@@ -28,22 +31,15 @@ public class DNSProxyRunner implements Runnable {
@Override
public void run() {
try {
- DatagramChannel tunnel = DatagramChannel.open();
-
- if(!this.service.protect(tunnel.socket())) {
- throw new IllegalStateException("Cannot protect tunnel");
- }
-
- // SocketAddress server = new InetSocketAddress("servername", "serverport");
- //
- // tunnel.connect(server);
- // tunnel.configureBlocking(false);
- //
- // ParcelFileDescriptor networkInterface = this.handshake(tunnel);
- // FileInputStream in = new FileInputStream(networkInterface.getFileDescriptor());
- // FileOutputStream out = new FileOutputStream(networkInterface.getFileDescriptor());
- } catch (IOException exception) {
- Log.e(DNSProxyService.LOG_TAG, "Cannot use socket", exception);
+ VpnService.Builder builder = this.service.newBuilder()
+ .setSession("Pihole DNS Proxy")
+ .addAddress("10.111.222.1", 24)
+ .addDnsServer(DNSProxyService.PIHOLE_ADDRESS)
+ .setBlocking(true);
+
+ this.onEstablishListener.onEstablish(builder.establish());
+ } catch (Exception exception) {
+ Log.e(DNSProxyService.LOG_TAG, "Failed to establish VPN connection", exception);
}
}
diff --git a/app/java/src/DNSProxyService.java b/app/java/src/DNSProxyService.java
index 117e6fc..8911036 100644
--- a/app/java/src/DNSProxyService.java
+++ b/app/java/src/DNSProxyService.java
@@ -1,23 +1,45 @@
package org.pihole.dnsproxy;
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
import android.app.Service;
+import android.content.Context;
import android.content.Intent;
+import android.net.DhcpInfo;
import android.net.VpnService;
+import android.net.wifi.WifiManager;
+
+import android.util.Log;
+
+import java.net.InetAddress;
public class DNSProxyService extends VpnService {
public static String LOG_TAG = "org.pihole.dnsproxy.log";
public static String NOTIFICATION = "org.pihole.dnsproxy.service";
+ public static String NOTIFICATION_CHANNEL_ID = "PiholeDNSProxy";
+ public static String ACTION_START = "org.pihole.dnsproxy.service.START";
+ public static String ACTION_STOP = "org.pihole.dnsproxy.service.STOP";
+
+ public static String PIHOLE_ADDRESS = "";
private static DNSProxyConnection connection;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
- this.start();
+ if (intent.getAction().equals(DNSProxyService.ACTION_START)) {
+ this.start();
- return Service.START_STICKY;
+ return Service.START_STICKY;
+ } else {
+ this.stop();
+
+ return Service.START_NOT_STICKY;
+ }
}
@Override
@@ -27,14 +49,22 @@ public class DNSProxyService extends VpnService {
super.onDestroy();
}
+ public VpnService.Builder newBuilder() {
+ return new VpnService.Builder();
+ }
+
public static boolean isRunning()
{
return DNSProxyService.connection != null;
}
public void start() {
+ this.setPiholeAddress();
+
DNSProxyService.connection = new DNSProxyConnection(this);
- // DNSProxyService.connection.start();
+ DNSProxyService.connection.start();
+
+ this.startForeground();
// send notification when started
Intent notification = new Intent(DNSProxyService.NOTIFICATION);
@@ -42,11 +72,49 @@ public class DNSProxyService extends VpnService {
}
public void stop() {
- // DNSProxyService.connection.stop();
+ DNSProxyService.connection.stop();
DNSProxyService.connection = null;
+ stopForeground(true);
+
// send notification when stopped
Intent notification = new Intent(DNSProxyService.NOTIFICATION);
sendBroadcast(notification);
}
+
+ private void setPiholeAddress() {
+ WifiManager manager = (WifiManager) getSystemService(WIFI_SERVICE);
+ DhcpInfo info = manager.getDhcpInfo();
+
+ byte[] addressBytes = {
+ (byte) (0xff & info.dns1),
+ (byte) (0xff & (info.dns1 >> 8)),
+ (byte) (0xff & (info.dns1 >> 16)),
+ (byte) (0xff & (info.dns1 >> 24)),
+ };
+
+ try {
+ DNSProxyService.PIHOLE_ADDRESS = InetAddress.getByAddress(addressBytes).toString().replaceAll("/", "");
+ } catch (Exception e) {
+ DNSProxyService.PIHOLE_ADDRESS = "";
+ }
+ }
+
+ private void startForeground() {
+ NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
+
+ NotificationChannel channel = new NotificationChannel(
+ DNSProxyService.NOTIFICATION_CHANNEL_ID, DNSProxyService.NOTIFICATION_CHANNEL_ID, NotificationManager.IMPORTANCE_DEFAULT
+ );
+ manager.createNotificationChannel(channel);
+
+ Notification notification = new Notification.Builder(this, DNSProxyService.NOTIFICATION_CHANNEL_ID)
+ .setSmallIcon(R.drawable.logo)
+ .setContentTitle("Pihole DNS Proxy")
+ .setContentText("Running with " + DNSProxyService.PIHOLE_ADDRESS)
+ // .setContentIntent(PendingIntent.getActivity(this, 0, new Intent(MainActivity.class), PendingIntent.FLAG_IMMUTABLE))
+ .build();
+
+ startForeground(1, notification);
+ }
}
diff --git a/app/java/src/MainActivity.java b/app/java/src/MainActivity.java
index f437c9d..049ee29 100644
--- a/app/java/src/MainActivity.java
+++ b/app/java/src/MainActivity.java
@@ -12,6 +12,8 @@ import android.net.VpnService;
import android.os.Bundle;
+import android.util.Log;
+
import android.view.TextureView;
import android.view.View;
@@ -30,10 +32,7 @@ public class MainActivity extends Activity {
*/
@Override
public void onReceive(Context context, Intent intent) {
- Bundle bundle = intent.getExtras();
- // if (bundle != null) {
- setStateButtonStart();
- // }
+ setStateButtonStart();
}
};
@@ -80,7 +79,7 @@ public class MainActivity extends Activity {
*/
public void onClickButtonStart(View view) {
if (!DNSProxyService.isRunning()) { //start
- Intent intent = DNSProxyService.prepare(this);
+ Intent intent = VpnService.prepare(this);
if (intent != null) {
startActivityForResult(intent, 0);
@@ -108,7 +107,7 @@ public class MainActivity extends Activity {
* Start DNSProxyService
*/
public void start() {
- startService(this.dnsProxyService);
+ startService(this.dnsProxyService.setAction(DNSProxyService.ACTION_START));
Toast
.makeText(
@@ -123,7 +122,7 @@ public class MainActivity extends Activity {
* Stop DNSProxyService
*/
public void stop() {
- stopService(this.dnsProxyService);
+ startService(this.dnsProxyService.setAction(DNSProxyService.ACTION_STOP));
Toast
.makeText(
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 21:29:06 +0000