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();
    }
  }
    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;
    }
  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
  }