session-android/src/org/thoughtcrime/securesms/webrtc/IncomingPstnCallReceiver.java
2018-08-06 10:50:06 -04:00

79 lines
2.6 KiB
Java

package org.thoughtcrime.securesms.webrtc;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.ResultReceiver;
import android.telephony.TelephonyManager;
import org.thoughtcrime.securesms.logging.Log;
import org.thoughtcrime.securesms.service.WebRtcCallService;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* Listens for incoming PSTN calls and rejects them if a RedPhone call is already in progress.
*
* Unstable use of reflection employed to gain access to ITelephony.
*
*/
public class IncomingPstnCallReceiver extends BroadcastReceiver {
private static final String TAG = IncomingPstnCallReceiver.class.getName();
@Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "Checking incoming call...");
if (intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER) == null) {
Log.w(TAG, "Telephony event does not contain number...");
return;
}
if (!intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_RINGING)) {
Log.w(TAG, "Telephony event is not state ringing...");
return;
}
InCallListener listener = new InCallListener(context, new Handler());
WebRtcCallService.isCallActive(context, listener);
}
private static class InCallListener extends ResultReceiver {
private final Context context;
InCallListener(Context context, Handler handler) {
super(handler);
this.context = context.getApplicationContext();
}
protected void onReceiveResult(int resultCode, Bundle resultData) {
if (resultCode == 1) {
Log.i(TAG, "Attempting to deny incoming PSTN call.");
TelephonyManager tm = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
try {
Method getTelephony = tm.getClass().getDeclaredMethod("getITelephony");
getTelephony.setAccessible(true);
Object telephonyService = getTelephony.invoke(tm);
Method endCall = telephonyService.getClass().getDeclaredMethod("endCall");
endCall.invoke(telephonyService);
Log.i(TAG, "Denied Incoming Call.");
} catch (NoSuchMethodException e) {
Log.w(TAG, "Unable to access ITelephony API", e);
} catch (IllegalAccessException e) {
Log.w(TAG, "Unable to access ITelephony API", e);
} catch (InvocationTargetException e) {
Log.w(TAG, "Unable to access ITelephony API", e);
}
}
}
}
}