Question

I need to find operator name from phone no. using this website in my android application.
Requesting and parsing HTML in the application works fine.

When I query request string from the app:

address: .https://nummertjanster.pts.se/net/en/Nummerkapacitet/Enskiltnummer?&_rp/pts.SearchNumber_ndc=70&_rp/pts.SearchNumber_operator=Tele2+Sverige+AB&_rp/pts.SearchNumber_telnumber=4264128

I need to specify ‘operator name’ ..which is wierd I guess.

The problem is no matter which number (ndc-telnumber) I enter if I specify a operator name in the request string the resulting webpage shows that operator name.

Here are some numbers to test:
073-3355433 = Telenor Sverige AB
073-6107353 = Tele 2 Sverige AB
070-3999266 = TeliaSonera Sverige AB
073-2404070 = Glocalnet AB

How can I find the proper operator name for a specific number?

Thanks for your any help.

Answer 1

There are a couple of issues with the site that prevent things from working:

1. It needs a cookie for the POST to work.
2. The operator name is actually not returned as part of the page, it is returned as part of a location redirect (302).

This chunk of code does what you want (I was dodging work, so I actually tidied it up for you): it hits the main page, fetches/extracts the cookie returned, posts the area code and number to the website and then intercepts the Location header and pulls out the operator name. Note that the area code is not always 3-digits (so for example for 073-3355433 you would do String operatorName = findOperator("73","3355433");.

String findOperator(String ndc, String number)
    {           
        String parameters = "action=search&ndc="+ndc+"&number="+number+"&search=S%F6k";
        HttpURLConnection httpUrlConnection = null;
        OutputStream outputStream = null;
        InputStream inputStream = null;
        int code = 0;
        String response = null;
        try {
            java.net.URI u = new java.net.URI("https://nummertjanster.pts.se/net/sv/Nummerkapacitet/Enskiltnummer");
            httpUrlConnection = (HttpURLConnection) u.toURL().openConnection();
            httpUrlConnection.setConnectTimeout(7500);
            httpUrlConnection.setReadTimeout(7500);
            httpUrlConnection.setRequestMethod("GET");
            httpUrlConnection.connect();
            String cookie = httpUrlConnection.getHeaderField("Set-Cookie");

            u = new java.net.URI("https://nummertjanster.pts.se/actionrequest/sv/Nummerkapacitet/Enskiltnummer?__ac_/pts.SearchNumber");
            httpUrlConnection = (HttpURLConnection) u.toURL().openConnection();
            httpUrlConnection.setConnectTimeout(7500);
            httpUrlConnection.setReadTimeout(7500);
            httpUrlConnection.setRequestProperty("Cookie", cookie);
            httpUrlConnection.setRequestMethod("POST");
            httpUrlConnection.setDoOutput(true);
            httpUrlConnection.connect();
            outputStream = httpUrlConnection.getOutputStream();
            outputStream.write(parameters.getBytes("UTF-8"));

            httpUrlConnection.setInstanceFollowRedirects(false);
            try {
                inputStream = httpUrlConnection.getInputStream();
            } catch (IOException e) {
                //andrologger.warn("An error occurred while POSTing to " + url, e);
            }

            code = httpUrlConnection.getResponseCode();
            response = httpUrlConnection.getHeaderField("Location");
            if(response != null){
                response = response.split("&")[2].split("=")[1];
            }
        }catch(Exception e1){
            android.util.Log.v("Configuration","Exception: "+e1.getMessage(), e1);
        } finally {
            closeQuietly(outputStream);
            closeQuietly(httpUrlConnection);
        }
        return response;
    }

Tested it on my phone and it works fine: let me know how it works for you.