public void onDestroy() {
    running = false;
    if (scanThread != null) scanThread.interrupt();

    if (myWLocate != null) myWLocate.doPause();

    sensorManager.unregisterListener(
        this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER));

    if (scanData.getmView() != null) {
      ((WindowManager) getSystemService(WINDOW_SERVICE)).removeView(scanData.getmView());
      scanData.setmView(null);
    }
    try {
      if (wl != null) wl.release();
    } catch (RuntimeException re) {
    }
    wl = null;
    try {
      scanThread.join(1000);
    } catch (InterruptedException ie) {

    }
    System.exit(0);
  }
  private void saveData(TelemetryData data) {
    PrintWriter out;
    boolean newFile = false;

    if (saveCnt > 25000) {
      File logFile;
      int i;

      logFile = new File(telemetryDir + 99 + ".log");
      logFile.delete();
      newFile = true;

      for (i = 99; i > 0; i--) {
        logFile = new File(telemetryDir + (i - 1) + ".log");
        logFile.renameTo(new File(telemetryDir + i + ".log"));
      }
      saveCnt = 0;
    }

    try {
      String text = "";
      SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.GERMAN);

      saveCnt++;
      out = new PrintWriter(new FileOutputStream(telemetryDir + "0.log", true));
      if (newFile) {
        text =
            "Time\tLatitude\tLongitude\tSpeed\tAcceleration X\tAcceleration Y\tAcceleration Z\tCoG\tOrientation Y\tOrientation Z\n\n";
        out.print(text);
      }
      text = dateFormat.format(new Date(System.currentTimeMillis())) + "\t";
      if (posValid) text = text + lastLat + "\t" + lastLon + "\t" + m_lastSpeed + "\t";
      else text = text + "-\t-\t-\t";
      text =
          text
              + data.getAccelX()
              + "\t"
              + data.getAccelY()
              + "\t"
              + data.getAccelZ()
              + "\t"
              + data.CoG
              + "\t"
              + data.getOrientY()
              + "\t"
              + data.getOrientZ()
              + "\n\n";
      out.print(text);
      out.close();
    } catch (IOException ioe) {
    }
  }
  public void onSensorChanged(SensorEvent event) {
    synchronized (this) {
      switch (event.sensor.getType()) {
        case Sensor.TYPE_ACCELEROMETER:
          scanData.getTelemetryData().addAccel(event.values[0], event.values[1], event.values[2]);
          break;
        case Sensor.TYPE_ORIENTATION:
          scanData.getTelemetryData().addOrient(event.values[0], event.values[1], event.values[2]);
          break;
      }
      if (lastTelemetryTime == 0) lastTelemetryTime = System.currentTimeMillis();
      else if (System.currentTimeMillis() - lastTelemetryTime > 750) {
        TelemetryData submitData = new TelemetryData();

        submitData.set(scanData.getTelemetryData());
        if (scanData.isStoreTele()) saveData(submitData);
        scanData.getTelemetryData().reset();
        OWMapAtAndroid.sendMessage(OWMapAtAndroid.ScannerHandler.MSG_TELEMETRY, 0, 0, submitData);
        lastTelemetryTime = System.currentTimeMillis();
      }
    }
  }
 protected void wloc_return_position(
     int ret, double lat, double lon, float radius, short ccode) {
   posValid = false;
   if (ret == WLocate.WLOC_OK) {
     lastGPSTime = System.currentTimeMillis();
     if (radius < OWMapAtAndroid.MAX_RADIUS) {
       if (GeoUtils.latlon2dist(lat, lon, lastLat, lastLon) < 10) {
         posValid =
             true; // use the position only when there is no too big jump in distance- elsewhere
                   // it could be a GPS bug
         ScanService.getScanData().setLatLon(lastLat, lastLon);
       }
       lastLat = lat;
       lastLon = lon;
     }
     lastRadius = radius;
   } else {
     lastRadius = -1;
   }
   posState = 2;
   scanThread.interrupt();
 }
  public void run() {
    int i,
        j,
        storedValues,
        sleepTime = 3000,
        timeoutCtr = 0,
        lastFlags = -1,
        trackCnt = 0,
        lastLocMethod = -5;
    String bssid;
    WMapEntry currEntry;
    DataOutputStream out;
    FileInputStream in;

    while (running) {
      try {
        if (scanData.getNoGPSExitInterval() > 0) {
          if (System.currentTimeMillis() > lastGPSTime + scanData.getNoGPSExitInterval()) {
            break;
          }
        }
        if (ScanService.scanData.getThreadMode() == OWMapAtAndroid.THREAD_MODE_UPLOAD) {
          if ((m_uploadThread != null) && (m_uploadThread.isUploading()))
            OWMapAtAndroid.sendMessage(
                ScannerHandler.MSG_SIMPLE_ALERT,
                0,
                0,
                getResources().getText(R.string.upload_in_progress));
          else m_uploadThread = new UploadThread(scanData, this, SP, false, notification, null);
          ScanService.scanData.setThreadMode(OWMapAtAndroid.THREAD_MODE_SCAN);
        } else {
          if ((posState == 0) && (scanData != null) && (scanData.isScanningEnabled())) {
            posState = 1;
            timeoutCtr = 0;
            if (scanData.getFlags() != lastFlags) {
              if ((scanData.getFlags() & OWMapAtAndroid.FLAG_NO_NET_ACCESS) == 0)
                scanData.getWifiManager().createWifiLock(WifiManager.WIFI_MODE_FULL, "OpenWLANMap");
              else
                scanData
                    .getWifiManager()
                    .createWifiLock(WifiManager.WIFI_MODE_SCAN_ONLY, "OpenWLANMap");
              lastFlags = scanData.getFlags();
            }
            if ((scanData.getFlags() & OWMapAtAndroid.FLAG_NO_NET_ACCESS) == 0)
              myWLocate.wloc_request_position(WLocate.FLAG_NO_IP_LOCATION);
            else {
              myWLocate.wloc_request_position(
                  WLocate.FLAG_NO_NET_ACCESS | WLocate.FLAG_NO_IP_LOCATION);
              //                  stopGoogleLocation();
            }
          } else if (!scanData.isScanningEnabled()) {
            try {
              trackCnt += 1500;
              Thread.sleep(1500);
            } catch (InterruptedException ie) {

            }
          }
          if (posState == 1) {
            // sleep while waiting for result
            try {
              trackCnt += 2500;
              java.lang.Thread.sleep(2500); // is interrupted from result handler
              timeoutCtr++;
              if (timeoutCtr > 3) {
                timeoutCtr = 0;
                posState = 0;
              }
            } catch (InterruptedException ie) {
            }
          }
          if ((posState == 2) || (posState == 100)) {
            loc_info locationInfo;
            NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

            locationInfo = myWLocate.last_location_info();
            if (lastLocMethod != locationInfo.lastLocMethod) {
              scanData.getmView().setMode(locationInfo.lastLocMethod);
              scanData.getmView().postInvalidate();
              lastLocMethod = locationInfo.lastLocMethod;
            }
            if (posState == 100) locationInfo.lastLocMethod = -1;
            OWMapAtAndroid.sendMessage(
                OWMapAtAndroid.ScannerHandler.MSG_UPD_LOC_STATE,
                (int) (lastRadius * 1000),
                locationInfo.lastLocMethod,
                locationInfo);

            if (SP.getBoolean("autoConnect", false)) {
              if (!mWifi.isConnected()) {
                for (i = 0; i < locationInfo.wifiScanResult.size(); i++) {
                  ScanResult result;

                  result = locationInfo.wifiScanResult.get(i);
                  result.capabilities = result.capabilities.toUpperCase(Locale.US);
                  if ((isFreeHotspot(result) & WMapEntry.FLAG_IS_FREIFUNK) != 0) {
                    // auto-connect to this open network

                    WifiConfiguration wifiConfig = new WifiConfiguration();
                    wifiConfig.BSSID = result.BSSID;
                    wifiConfig.priority = 1;
                    wifiConfig.allowedKeyManagement.set(KeyMgmt.NONE);
                    wifiConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
                    wifiConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
                    wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
                    wifiConfig.status = WifiConfiguration.Status.ENABLED;

                    int netId = scanData.getWifiManager().addNetwork(wifiConfig);
                    scanData.getWifiManager().enableNetwork(netId, true);
                  }
                }
              }
            }
            if ((posValid)
                && (locationInfo.wifiScanResult != null)
                && (locationInfo.wifiScanResult.size() > 0)) {
              boolean foundExisting;

              for (i = 0; i < locationInfo.wifiScanResult.size(); i++) {
                ScanResult result;

                result = locationInfo.wifiScanResult.get(i);
                bssid = result.BSSID.replace(":", "").replace(".", "").toUpperCase(Locale.US);
                if (bssid.equalsIgnoreCase("000000000000")) break;
                foundExisting = false;
                scanData.getLock().lock();
                for (j = 0; j < scanData.getWmapList().size(); j++) {
                  currEntry = scanData.getWmapList().elementAt(j);
                  if (currEntry.getBSSID().equalsIgnoreCase(bssid)) {
                    currEntry.setPos(lastLat, lastLon);
                    foundExisting = true;
                    break;
                  }
                }
                if (!foundExisting) {
                  String lowerSSID;

                  storedValues = scanData.incStoredValues();
                  scanData.getmView().setValue(storedValues);
                  scanData.getmView().postInvalidate();
                  currEntry = new WMapEntry(bssid, result.SSID, lastLat, lastLon, storedValues);
                  lowerSSID = result.SSID.toLowerCase(Locale.US);
                  if ((lowerSSID.endsWith("_nomap"))
                      || // Google unsubscibe option
                      (lowerSSID.contains("iphone"))
                      || // mobile AP
                      (lowerSSID.contains("android"))
                      || // mobile AP
                      (lowerSSID.contains("motorola"))
                      || // mobile AP
                      (lowerSSID.contains("deinbus.de"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("fernbus"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("flixbus"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("ecolines"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("eurolines_wifi"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("contiki-wifi"))
                      || // WLAN network on board of bus
                      (lowerSSID.contains("guest@ms "))
                      || // WLAN network on Hurtigruten ships
                      (lowerSSID.contains("admin@ms "))
                      || // WLAN network on Hurtigruten ships
                      (lowerSSID.contains("nsb_interakti"))
                      || // WLAN network in NSB trains
                      (lowerSSID.equals("southwestwifi"))) // WLAN network on Southwest flights
                  currEntry.setFlags(currEntry.getFlags() | WMapEntry.FLAG_IS_NOMAP);
                  else currEntry.setFlags(currEntry.getFlags() | isFreeHotspot(result));
                  if (isFreeHotspot(currEntry.getFlags())) scanData.incFreeHotspotWLANs();
                  scanData.getWmapList().add(currEntry);
                  if ((scanData.getUploadThres() > 0)
                      && (storedValues > scanData.getUploadThres())) {
                    if ((m_uploadThread == null) || (!m_uploadThread.isUploading())) {
                      if (mWifi.isConnected()) {
                        m_uploadThread =
                            new UploadThread(scanData, this, SP, true, notification, mWifi);
                      }
                    }
                  }
                }
                result.capabilities = result.capabilities.toUpperCase(Locale.US);
                scanData.getLock().unlock();
              }
            }
            scanData.getLock().lock();
            for (j = 0; j < scanData.getWmapList().size(); j++) {
              currEntry = scanData.getWmapList().elementAt(j);
              if ((currEntry.getLastUpdate() + OWMapAtAndroid.RECV_TIMEOUT
                      < System.currentTimeMillis())
                  && ((currEntry.getFlags() & WMapEntry.FLAG_IS_VISIBLE) == 0)) {
                scanData.getWmapList().remove(j);
                if (currEntry.posIsValid()) {
                  int padBytes = 0, k;

                  try {
                    in = scanData.getCtx().openFileInput(OWMapAtAndroid.WSCAN_FILE);
                    padBytes = in.available() % 28;
                    in.close();
                    if (padBytes > 0) padBytes = 28 - padBytes;
                  } catch (IOException ioe) {
                    ioe.printStackTrace();
                  }
                  try {
                    out =
                        new DataOutputStream(
                            scanData
                                .getCtx()
                                .openFileOutput(
                                    OWMapAtAndroid.WSCAN_FILE,
                                    Context.MODE_PRIVATE | Context.MODE_APPEND));
                    if (padBytes > 0) for (k = 0; k < padBytes; k++) out.writeByte(0);
                    out.write(currEntry.getBSSID().getBytes(), 0, 12);
                    if ((currEntry.getFlags() & WMapEntry.FLAG_IS_NOMAP) != 0) {
                      out.writeDouble(0.0);
                      out.writeDouble(0.0);
                    } else {
                      out.writeDouble(currEntry.getLat());
                      out.writeDouble(currEntry.getLon());
                    }
                    out.close();
                  } catch (IOException ioe) {
                    ioe.printStackTrace();
                  }

                  if ((currEntry.getFlags()
                          & (WMapEntry.FLAG_IS_FREIFUNK | WMapEntry.FLAG_IS_NOMAP))
                      == WMapEntry.FLAG_IS_FREIFUNK) {
                    padBytes = 0;
                    try {
                      in = scanData.getCtx().openFileInput(OWMapAtAndroid.WFREI_FILE);
                      padBytes = in.available() % 12;
                      in.close();
                      if (padBytes > 0) padBytes = 12 - padBytes;
                    } catch (IOException ioe) {
                      ioe.printStackTrace();
                    }
                    try {
                      out =
                          new DataOutputStream(
                              scanData
                                  .getCtx()
                                  .openFileOutput(
                                      OWMapAtAndroid.WFREI_FILE,
                                      Context.MODE_PRIVATE | Context.MODE_APPEND));
                      if (padBytes > 0) for (k = 0; k < padBytes; k++) out.writeByte(0);
                      out.write(currEntry.getBSSID().getBytes(), 0, 12);
                      out.close();
                    } catch (IOException ioe) {
                      ioe.printStackTrace();
                    }
                  }
                }
              }
              //               flushData(false);
            }
            scanData.getLock().unlock();
            m_lastSpeed = locationInfo.lastSpeed;
            if (!SP.getBoolean("adaptiveScanning", true)) sleepTime = 500;
            else if (locationInfo.lastSpeed > 90) sleepTime = 350;
            else if (locationInfo.lastSpeed < 0)
              sleepTime = 1300; // no speed information, may be because of WLAN localisation
            else if (locationInfo.lastSpeed < 6) sleepTime = 2500; // user seems to walk
            else {
              double f;

              f = 1.0 - (locationInfo.lastSpeed / 90.0);
              sleepTime = (int) ((1000.0 * f) + 350);
            }

            try {
              trackCnt += sleepTime;
              java.lang.Thread.sleep(sleepTime); // sleep between scans
            } catch (InterruptedException ie) {

            }
            posState = 0;
          }
        }
      } catch (NullPointerException npe) // in case the parent activity dies too fast
      {
        npe.printStackTrace();
      }
      if ((trackCnt > 500000) && (lastLat != 0) && (lastLon != 0)) {
        if (SP.getBoolean("track", false)) new UploadPositionTask().execute(null, null, null);
        trackCnt = 0;
      }
    }
    onDestroy(); // remove all resources (in case the thread was stopped due to some other reason
  }
public class ScanService extends Service implements Runnable, SensorEventListener {
  static boolean running = true;
  private MyWLocate myWLocate = null;
  private boolean posValid;
  private int posState = 0, saveCnt = 1000000;
  private double lastLat = 0.0, lastLon = 0.0, lastRadius;
  private Thread scanThread;
  private PowerManager.WakeLock wl = null;
  private ConnectivityManager connManager;
  private SharedPreferences SP;
  private static ScanData scanData = new ScanData();
  private SensorManager sensorManager;
  private long lastTelemetryTime;
  private long lastGPSTime = System.currentTimeMillis();
  private String telemetryDir;
  private float m_lastSpeed;
  private UploadThread m_uploadThread;
  private Notification notification;

  public static ScanData getScanData() {
    return scanData;
  }

  @Override
  public IBinder onBind(Intent arg) {
    return null;
  }

  public void onCreate() {
    int flags, screenLightVal = 1;
    Sensor mSensor;
    List<Sensor> sensors;

    if (scanData == null) return; // no ScanData, not possible to run correctly...

    PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
    SP = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
    try {
      screenLightVal = Integer.parseInt(SP.getString("screenLight", "2"));
    } catch (NumberFormatException nfe) {
    }
    if (screenLightVal == 1) flags = PowerManager.PARTIAL_WAKE_LOCK;
    else if (screenLightVal == 3) flags = PowerManager.FULL_WAKE_LOCK;
    else flags = PowerManager.SCREEN_DIM_WAKE_LOCK;
    wl = pm.newWakeLock(flags, "OpenWLANMap");
    wl.acquire();
    while (myWLocate == null) {
      try {
        myWLocate = new MyWLocate(this);
        break;
      } catch (IllegalArgumentException iae) {
        myWLocate = null;
      }
      try {
        Thread.sleep(100);
      } catch (InterruptedException ie) {
      }
    }

    try {
      scanData.setUploadThres(Integer.parseInt(SP.getString("autoUpload", "0")));
    } catch (NumberFormatException nfe) {
    }
    try {
      scanData.setNoGPSExitInterval(
          Integer.parseInt(SP.getString("noGPSExitInterval", "0")) * 60 * 1000);
    } catch (NumberFormatException nfe) {
    }

    Intent intent = new Intent(this, OWMapAtAndroid.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    PendingIntent pendIntent = PendingIntent.getActivity(this, 0, intent, 0);

    notification =
        new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.icon)
            .setContentTitle(getResources().getText(R.string.app_name))
            .setContentText("")
            .setContentIntent(pendIntent)
            .build();

    notification.flags |= Notification.FLAG_NO_CLEAR;
    notification.flags |= Notification.FLAG_ONGOING_EVENT;
    startForeground(1703, notification);

    getScanData().setService(this);
    getScanData().setmView(new HUDView(this));
    getScanData().getmView().setValue(getScanData().incStoredValues());
    WindowManager.LayoutParams params =
        new WindowManager.LayoutParams(
            WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
            WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
                | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
            PixelFormat.TRANSLUCENT);
    params.gravity = Gravity.LEFT | Gravity.BOTTOM;
    params.setTitle("Load Average");
    WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
    wm.addView(getScanData().getmView(), params);

    sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

    sensorManager.registerListener(
        this,
        sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
        SensorManager.SENSOR_DELAY_GAME);
    sensorManager.registerListener(
        this,
        sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION),
        SensorManager.SENSOR_DELAY_GAME);
    sensors = sensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER);
    mSensor = sensors.get(0);
    getScanData().getTelemetryData().setAccelMax(mSensor.getMaximumRange());
    telemetryDir = Environment.getExternalStorageDirectory().getPath() + "/telemetry/";
    File dir = new File(telemetryDir);
    dir.mkdir();

    connManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
  }

  public void onDestroy() {
    running = false;
    if (scanThread != null) scanThread.interrupt();

    if (myWLocate != null) myWLocate.doPause();

    sensorManager.unregisterListener(
        this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER));

    if (scanData.getmView() != null) {
      ((WindowManager) getSystemService(WINDOW_SERVICE)).removeView(scanData.getmView());
      scanData.setmView(null);
    }
    try {
      if (wl != null) wl.release();
    } catch (RuntimeException re) {
    }
    wl = null;
    try {
      scanThread.join(1000);
    } catch (InterruptedException ie) {

    }
    System.exit(0);
  }

  private void saveData(TelemetryData data) {
    PrintWriter out;
    boolean newFile = false;

    if (saveCnt > 25000) {
      File logFile;
      int i;

      logFile = new File(telemetryDir + 99 + ".log");
      logFile.delete();
      newFile = true;

      for (i = 99; i > 0; i--) {
        logFile = new File(telemetryDir + (i - 1) + ".log");
        logFile.renameTo(new File(telemetryDir + i + ".log"));
      }
      saveCnt = 0;
    }

    try {
      String text = "";
      SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.GERMAN);

      saveCnt++;
      out = new PrintWriter(new FileOutputStream(telemetryDir + "0.log", true));
      if (newFile) {
        text =
            "Time\tLatitude\tLongitude\tSpeed\tAcceleration X\tAcceleration Y\tAcceleration Z\tCoG\tOrientation Y\tOrientation Z\n\n";
        out.print(text);
      }
      text = dateFormat.format(new Date(System.currentTimeMillis())) + "\t";
      if (posValid) text = text + lastLat + "\t" + lastLon + "\t" + m_lastSpeed + "\t";
      else text = text + "-\t-\t-\t";
      text =
          text
              + data.getAccelX()
              + "\t"
              + data.getAccelY()
              + "\t"
              + data.getAccelZ()
              + "\t"
              + data.CoG
              + "\t"
              + data.getOrientY()
              + "\t"
              + data.getOrientZ()
              + "\n\n";
      out.print(text);
      out.close();
    } catch (IOException ioe) {
    }
  }

  public void onSensorChanged(SensorEvent event) {
    synchronized (this) {
      switch (event.sensor.getType()) {
        case Sensor.TYPE_ACCELEROMETER:
          scanData.getTelemetryData().addAccel(event.values[0], event.values[1], event.values[2]);
          break;
        case Sensor.TYPE_ORIENTATION:
          scanData.getTelemetryData().addOrient(event.values[0], event.values[1], event.values[2]);
          break;
      }
      if (lastTelemetryTime == 0) lastTelemetryTime = System.currentTimeMillis();
      else if (System.currentTimeMillis() - lastTelemetryTime > 750) {
        TelemetryData submitData = new TelemetryData();

        submitData.set(scanData.getTelemetryData());
        if (scanData.isStoreTele()) saveData(submitData);
        scanData.getTelemetryData().reset();
        OWMapAtAndroid.sendMessage(OWMapAtAndroid.ScannerHandler.MSG_TELEMETRY, 0, 0, submitData);
        lastTelemetryTime = System.currentTimeMillis();
      }
    }
  }

  public void onAccuracyChanged(Sensor sensor, int accuracy) {}

  public int onStartCommand(Intent intent, int flags, int startId) {
    scanThread = new Thread(this);
    scanThread.start();
    return START_STICKY;
  }

  class MyWLocate extends WLocate {

    public MyWLocate(Context ctx) {
      super(ctx);
    }

    protected void wloc_return_position(
        int ret, double lat, double lon, float radius, short ccode) {
      posValid = false;
      if (ret == WLocate.WLOC_OK) {
        lastGPSTime = System.currentTimeMillis();
        if (radius < OWMapAtAndroid.MAX_RADIUS) {
          if (GeoUtils.latlon2dist(lat, lon, lastLat, lastLon) < 10) {
            posValid =
                true; // use the position only when there is no too big jump in distance- elsewhere
                      // it could be a GPS bug
            ScanService.getScanData().setLatLon(lastLat, lastLon);
          }
          lastLat = lat;
          lastLon = lon;
        }
        lastRadius = radius;
      } else {
        lastRadius = -1;
      }
      posState = 2;
      scanThread.interrupt();
    }
  }

  /*   private class GoogleLocationListener implements LocationListener
  {
     public void onLocationChanged(Location location)
     {
        if (location == null) return;
        lastLocationMillis = SystemClock.elapsedRealtime();
        m_lat=location.getLatitude();
        m_lon=location.getLongitude();
        if (location.hasSpeed()) m_speed=location.getSpeed(); //m/sec
        else m_speed=-1;
        if (location.hasAccuracy()) m_radius=location.getAccuracy();
        else m_radius=-1;
     }

     public void onStatusChanged(String provider, int status, Bundle extras)
     {
        int i=0;
     }

     public void onProviderEnabled(String provider)
     {
        int i=0;
     }

     public void onProviderDisabled(String provider)
     {
        int i=0;
     }
  };

  private void startGoogleLocation()
  {
     if (locationListener!=null) return;
     Looper.prepare();
     locationListener = new GoogleLocationListener();
     location.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,250,0,(LocationListener)locationListener);
  }

  private void stopGoogleLocation()
  {
     if (locationListener==null) return;
     location.removeUpdates(locationListener);
     locationListener=null;
  }   */

  private static final String HEXES = "0123456789ABCDEF";

  public static String getHex(byte[] raw) {
    if (raw == null) return null;
    final StringBuilder hex = new StringBuilder(2 * raw.length);
    for (final byte b : raw)
      hex.append(HEXES.charAt((b & 0xF0) >> 4)).append(HEXES.charAt((b & 0x0F)));
    return hex.toString();
  }

  private boolean isOpenWLAN(ScanResult result) {
    if ((!result.capabilities.contains("WEP"))
        && (!result.capabilities.contains("WPA"))
        && (!result.capabilities.contains("TKIP"))
        && (!result.capabilities.contains("CCMP"))
        && (!result.capabilities.contains("PSK"))) return true;
    return false;
  }

  private int isFreeHotspot(ScanResult result) {
    if (isOpenWLAN(result)) {
      if (result.SSID.toLowerCase(Locale.US).contains("freifunk"))
        return WMapEntry.FLAG_IS_FREIFUNK;
      if (result.SSID.toLowerCase(Locale.US).compareTo("mesh") == 0)
        return WMapEntry.FLAG_IS_FREIFUNK;
      if (result.SSID.toLowerCase(Locale.US).compareTo("free-hotspot.com") == 0)
        return WMapEntry.FLAG_IS_FREEHOTSPOT;
      if (result.SSID.toLowerCase(Locale.US).contains("the cloud"))
        return WMapEntry.FLAG_IS_THECLOUD;
      return WMapEntry.FLAG_IS_OPEN;
    }
    return 0;
  }

  private boolean isFreeHotspot(int flags) {
    return (((flags & WMapEntry.FLAG_IS_FREIFUNK) == WMapEntry.FLAG_IS_FREIFUNK)
        || ((flags & WMapEntry.FLAG_IS_FREEHOTSPOT) == WMapEntry.FLAG_IS_FREEHOTSPOT)
        || ((flags & WMapEntry.FLAG_IS_THECLOUD) == WMapEntry.FLAG_IS_THECLOUD));
  }

  void storeConfig() {
    DataOutputStream out;

    try {
      out = new DataOutputStream(openFileOutput("wscnprefs", Context.MODE_PRIVATE));
      out.writeByte(1); // version
      out.writeInt(ScanService.scanData.getFlags()); // operation flags;
      out.writeInt(ScanService.scanData.getStoredValues()); // number of currently stored values
      out.writeInt(ScanService.scanData.getUploadedCount());
      out.writeInt(ScanService.scanData.getUploadedRank());
      out.writeInt(0); // Open WLANs, no longer used
      out.writeInt(ScanService.scanData.getFreeHotspotWLANs());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrAccelX());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrAccelY());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrAccelZ());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrCoG());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrOrientY());
      out.writeFloat(ScanService.scanData.getTelemetryData().getCorrOrientZ());
      out.close();
    } catch (IOException ioe) {
      ioe.printStackTrace();
    }
  }

  public void run() {
    int i,
        j,
        storedValues,
        sleepTime = 3000,
        timeoutCtr = 0,
        lastFlags = -1,
        trackCnt = 0,
        lastLocMethod = -5;
    String bssid;
    WMapEntry currEntry;
    DataOutputStream out;
    FileInputStream in;

    while (running) {
      try {
        if (scanData.getNoGPSExitInterval() > 0) {
          if (System.currentTimeMillis() > lastGPSTime + scanData.getNoGPSExitInterval()) {
            break;
          }
        }
        if (ScanService.scanData.getThreadMode() == OWMapAtAndroid.THREAD_MODE_UPLOAD) {
          if ((m_uploadThread != null) && (m_uploadThread.isUploading()))
            OWMapAtAndroid.sendMessage(
                ScannerHandler.MSG_SIMPLE_ALERT,
                0,
                0,
                getResources().getText(R.string.upload_in_progress));
          else m_uploadThread = new UploadThread(scanData, this, SP, false, notification, null);
          ScanService.scanData.setThreadMode(OWMapAtAndroid.THREAD_MODE_SCAN);
        } else {
          if ((posState == 0) && (scanData != null) && (scanData.isScanningEnabled())) {
            posState = 1;
            timeoutCtr = 0;
            if (scanData.getFlags() != lastFlags) {
              if ((scanData.getFlags() & OWMapAtAndroid.FLAG_NO_NET_ACCESS) == 0)
                scanData.getWifiManager().createWifiLock(WifiManager.WIFI_MODE_FULL, "OpenWLANMap");
              else
                scanData
                    .getWifiManager()
                    .createWifiLock(WifiManager.WIFI_MODE_SCAN_ONLY, "OpenWLANMap");
              lastFlags = scanData.getFlags();
            }
            if ((scanData.getFlags() & OWMapAtAndroid.FLAG_NO_NET_ACCESS) == 0)
              myWLocate.wloc_request_position(WLocate.FLAG_NO_IP_LOCATION);
            else {
              myWLocate.wloc_request_position(
                  WLocate.FLAG_NO_NET_ACCESS | WLocate.FLAG_NO_IP_LOCATION);
              //                  stopGoogleLocation();
            }
          } else if (!scanData.isScanningEnabled()) {
            try {
              trackCnt += 1500;
              Thread.sleep(1500);
            } catch (InterruptedException ie) {

            }
          }
          if (posState == 1) {
            // sleep while waiting for result
            try {
              trackCnt += 2500;
              java.lang.Thread.sleep(2500); // is interrupted from result handler
              timeoutCtr++;
              if (timeoutCtr > 3) {
                timeoutCtr = 0;
                posState = 0;
              }
            } catch (InterruptedException ie) {
            }
          }
          if ((posState == 2) || (posState == 100)) {
            loc_info locationInfo;
            NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

            locationInfo = myWLocate.last_location_info();
            if (lastLocMethod != locationInfo.lastLocMethod) {
              scanData.getmView().setMode(locationInfo.lastLocMethod);
              scanData.getmView().postInvalidate();
              lastLocMethod = locationInfo.lastLocMethod;
            }
            if (posState == 100) locationInfo.lastLocMethod = -1;
            OWMapAtAndroid.sendMessage(
                OWMapAtAndroid.ScannerHandler.MSG_UPD_LOC_STATE,
                (int) (lastRadius * 1000),
                locationInfo.lastLocMethod,
                locationInfo);

            if (SP.getBoolean("autoConnect", false)) {
              if (!mWifi.isConnected()) {
                for (i = 0; i < locationInfo.wifiScanResult.size(); i++) {
                  ScanResult result;

                  result = locationInfo.wifiScanResult.get(i);
                  result.capabilities = result.capabilities.toUpperCase(Locale.US);
                  if ((isFreeHotspot(result) & WMapEntry.FLAG_IS_FREIFUNK) != 0) {
                    // auto-connect to this open network

                    WifiConfiguration wifiConfig = new WifiConfiguration();
                    wifiConfig.BSSID = result.BSSID;
                    wifiConfig.priority = 1;
                    wifiConfig.allowedKeyManagement.set(KeyMgmt.NONE);
                    wifiConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
                    wifiConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
                    wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
                    wifiConfig.status = WifiConfiguration.Status.ENABLED;

                    int netId = scanData.getWifiManager().addNetwork(wifiConfig);
                    scanData.getWifiManager().enableNetwork(netId, true);
                  }
                }
              }
            }
            if ((posValid)
                && (locationInfo.wifiScanResult != null)
                && (locationInfo.wifiScanResult.size() > 0)) {
              boolean foundExisting;

              for (i = 0; i < locationInfo.wifiScanResult.size(); i++) {
                ScanResult result;

                result = locationInfo.wifiScanResult.get(i);
                bssid = result.BSSID.replace(":", "").replace(".", "").toUpperCase(Locale.US);
                if (bssid.equalsIgnoreCase("000000000000")) break;
                foundExisting = false;
                scanData.getLock().lock();
                for (j = 0; j < scanData.getWmapList().size(); j++) {
                  currEntry = scanData.getWmapList().elementAt(j);
                  if (currEntry.getBSSID().equalsIgnoreCase(bssid)) {
                    currEntry.setPos(lastLat, lastLon);
                    foundExisting = true;
                    break;
                  }
                }
                if (!foundExisting) {
                  String lowerSSID;

                  storedValues = scanData.incStoredValues();
                  scanData.getmView().setValue(storedValues);
                  scanData.getmView().postInvalidate();
                  currEntry = new WMapEntry(bssid, result.SSID, lastLat, lastLon, storedValues);
                  lowerSSID = result.SSID.toLowerCase(Locale.US);
                  if ((lowerSSID.endsWith("_nomap"))
                      || // Google unsubscibe option
                      (lowerSSID.contains("iphone"))
                      || // mobile AP
                      (lowerSSID.contains("android"))
                      || // mobile AP
                      (lowerSSID.contains("motorola"))
                      || // mobile AP
                      (lowerSSID.contains("deinbus.de"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("fernbus"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("flixbus"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("ecolines"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("eurolines_wifi"))
                      || // WLAN network on board of German bus
                      (lowerSSID.contains("contiki-wifi"))
                      || // WLAN network on board of bus
                      (lowerSSID.contains("guest@ms "))
                      || // WLAN network on Hurtigruten ships
                      (lowerSSID.contains("admin@ms "))
                      || // WLAN network on Hurtigruten ships
                      (lowerSSID.contains("nsb_interakti"))
                      || // WLAN network in NSB trains
                      (lowerSSID.equals("southwestwifi"))) // WLAN network on Southwest flights
                  currEntry.setFlags(currEntry.getFlags() | WMapEntry.FLAG_IS_NOMAP);
                  else currEntry.setFlags(currEntry.getFlags() | isFreeHotspot(result));
                  if (isFreeHotspot(currEntry.getFlags())) scanData.incFreeHotspotWLANs();
                  scanData.getWmapList().add(currEntry);
                  if ((scanData.getUploadThres() > 0)
                      && (storedValues > scanData.getUploadThres())) {
                    if ((m_uploadThread == null) || (!m_uploadThread.isUploading())) {
                      if (mWifi.isConnected()) {
                        m_uploadThread =
                            new UploadThread(scanData, this, SP, true, notification, mWifi);
                      }
                    }
                  }
                }
                result.capabilities = result.capabilities.toUpperCase(Locale.US);
                scanData.getLock().unlock();
              }
            }
            scanData.getLock().lock();
            for (j = 0; j < scanData.getWmapList().size(); j++) {
              currEntry = scanData.getWmapList().elementAt(j);
              if ((currEntry.getLastUpdate() + OWMapAtAndroid.RECV_TIMEOUT
                      < System.currentTimeMillis())
                  && ((currEntry.getFlags() & WMapEntry.FLAG_IS_VISIBLE) == 0)) {
                scanData.getWmapList().remove(j);
                if (currEntry.posIsValid()) {
                  int padBytes = 0, k;

                  try {
                    in = scanData.getCtx().openFileInput(OWMapAtAndroid.WSCAN_FILE);
                    padBytes = in.available() % 28;
                    in.close();
                    if (padBytes > 0) padBytes = 28 - padBytes;
                  } catch (IOException ioe) {
                    ioe.printStackTrace();
                  }
                  try {
                    out =
                        new DataOutputStream(
                            scanData
                                .getCtx()
                                .openFileOutput(
                                    OWMapAtAndroid.WSCAN_FILE,
                                    Context.MODE_PRIVATE | Context.MODE_APPEND));
                    if (padBytes > 0) for (k = 0; k < padBytes; k++) out.writeByte(0);
                    out.write(currEntry.getBSSID().getBytes(), 0, 12);
                    if ((currEntry.getFlags() & WMapEntry.FLAG_IS_NOMAP) != 0) {
                      out.writeDouble(0.0);
                      out.writeDouble(0.0);
                    } else {
                      out.writeDouble(currEntry.getLat());
                      out.writeDouble(currEntry.getLon());
                    }
                    out.close();
                  } catch (IOException ioe) {
                    ioe.printStackTrace();
                  }

                  if ((currEntry.getFlags()
                          & (WMapEntry.FLAG_IS_FREIFUNK | WMapEntry.FLAG_IS_NOMAP))
                      == WMapEntry.FLAG_IS_FREIFUNK) {
                    padBytes = 0;
                    try {
                      in = scanData.getCtx().openFileInput(OWMapAtAndroid.WFREI_FILE);
                      padBytes = in.available() % 12;
                      in.close();
                      if (padBytes > 0) padBytes = 12 - padBytes;
                    } catch (IOException ioe) {
                      ioe.printStackTrace();
                    }
                    try {
                      out =
                          new DataOutputStream(
                              scanData
                                  .getCtx()
                                  .openFileOutput(
                                      OWMapAtAndroid.WFREI_FILE,
                                      Context.MODE_PRIVATE | Context.MODE_APPEND));
                      if (padBytes > 0) for (k = 0; k < padBytes; k++) out.writeByte(0);
                      out.write(currEntry.getBSSID().getBytes(), 0, 12);
                      out.close();
                    } catch (IOException ioe) {
                      ioe.printStackTrace();
                    }
                  }
                }
              }
              //               flushData(false);
            }
            scanData.getLock().unlock();
            m_lastSpeed = locationInfo.lastSpeed;
            if (!SP.getBoolean("adaptiveScanning", true)) sleepTime = 500;
            else if (locationInfo.lastSpeed > 90) sleepTime = 350;
            else if (locationInfo.lastSpeed < 0)
              sleepTime = 1300; // no speed information, may be because of WLAN localisation
            else if (locationInfo.lastSpeed < 6) sleepTime = 2500; // user seems to walk
            else {
              double f;

              f = 1.0 - (locationInfo.lastSpeed / 90.0);
              sleepTime = (int) ((1000.0 * f) + 350);
            }

            try {
              trackCnt += sleepTime;
              java.lang.Thread.sleep(sleepTime); // sleep between scans
            } catch (InterruptedException ie) {

            }
            posState = 0;
          }
        }
      } catch (NullPointerException npe) // in case the parent activity dies too fast
      {
        npe.printStackTrace();
      }
      if ((trackCnt > 500000) && (lastLat != 0) && (lastLon != 0)) {
        if (SP.getBoolean("track", false)) new UploadPositionTask().execute(null, null, null);
        trackCnt = 0;
      }
    }
    onDestroy(); // remove all resources (in case the thread was stopped due to some other reason
  }

  private class UploadPositionTask extends AsyncTask<Void, Void, Void> {
    protected Void doInBackground(Void... params) {
      String outString;
      HttpURLConnection c = null;
      DataOutputStream os = null;

      outString = scanData.getOwnBSSID();
      outString = outString + "\nL\tX\t" + lastLat + "\t" + lastLon + "\n";

      try {
        URL connectURL = new URL("http://www.openwlanmap.org/android/upload.php");
        c = (HttpURLConnection) connectURL.openConnection();
        if (c == null) {
          return null;
        }

        c.setDoOutput(true); // enable POST
        c.setRequestMethod("POST");
        c.addRequestProperty("Content-Type", "application/x-www-form-urlencoded, *.*");
        c.addRequestProperty("Content-Length", "" + outString.length());
        os = new DataOutputStream(c.getOutputStream());
        os.write(outString.getBytes());
        os.flush();
        c.getResponseCode();
        os.close();
        outString = null;
        os = null;
      } catch (IOException ioe) {
      } finally {
        try {
          if (os != null) os.close();
          if (c != null) c.disconnect();
        } catch (IOException ioe) {
          ioe.printStackTrace();
        }
      }
      return null;
    }
  }
}