Add some logging and additional error checking

Author: Fuzion24

app/src/main/java/fuzion24/device/vulnerability/broadcastreceiver/ScanRunnerBroadcastReceiver.java

@@ -6,6 +6,7 @@
 import android.content.pm.ApplicationInfo;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.util.Log;
 
 import org.json.JSONObject;
 
@@ -23,27 +24,40 @@
  * Created by fuzion24 on 11/25/15.
  */
 public class ScanRunnerBroadcastReceiver extends BroadcastReceiver {
-
+    private static final String TAG = "ScanRunnerReceiver";
     @Override
     public void onReceive(final Context context, Intent intent) {
 
+        Log.d(TAG, "Received broadcast for scanrunner");
         //Only allow this code to be ran on debug builds, since it accepts and writes to arbitrary file
         //paths, which would allow another app to arbitrarily write anywhere in this app's context.
         // http://android-developers.blogspot.com/2010/09/securing-android-lvl-applications.html
         boolean isDebuggable = ( 0 != ( context.getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE ) );
         if(!isDebuggable){
+            Log.d(TAG, "Not running the tests because the app is not debuggable");
             return;
         }
 
         Bundle intentExtras = intent.getExtras();
+        if(intentExtras == null){
+            Log.d(TAG, "There were no extras with the broadcast. Include RESULT_PATH");
+            return;
+        }
+
         final String writeResultPath = intentExtras.getString("RESULT_PATH");
+        if(writeResultPath == null || writeResultPath.equals("")){
+            Log.d(TAG, "Result write path is null or empty");
+        }
+
+        Log.d(TAG, "Results will be written to: " + writeResultPath);
 
         new AsyncTask<Void,Void,Void>(){
             @Override
             protected Void doInBackground(Void... params) {
                 List<VulnerabilityTest> tests = VulnerabilityOrganizer.getTests(context);
                 List<VulnerabilityTestResult> results = new ArrayList<VulnerabilityTestResult>();
                 for(VulnerabilityTest vt : tests){
+                    Log.d(TAG, "Running: " + vt.getCVEorID());
                     boolean vulnerable = false;
                     Exception x = null;
                     try {
@@ -52,7 +66,6 @@ protected Void doInBackground(Void... params) {
                       x = e;
                     }
                     results.add(new VulnerabilityTestResult(vt, vulnerable, x));
-
                 }
 
                 try {