Problems connecting with a PHP: withg java.lang.Exception: HTTP error: 401

Question

I have this code, who should connect to a php remote file and should get a String representing a XML file. But something is wrong, it is giving me error 401.

The variable url is the direction of the php:

String response=getXML("http://ficticiousweb.com/scripts/getMagazinesList.php");

If i paste the real direction (that is a ficticious direction) on the webbrowser, it works and gives me the XML.

This is my code:

public String getXML(String url){
    try{
        StringBuilder builder = new StringBuilder();
        HttpClient httpclient = new DefaultHttpClient();
        HttpGet httpget = new HttpGet(url);
        HttpResponse response = httpclient.execute(httpget);
        int statuscode = response.getStatusLine().getStatusCode();
        if(statuscode == 200)
        {
            HttpEntity entity = response.getEntity();
            InputStream content = entity.getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(content));
            String line;
            while ((line = reader.readLine()) != null)  builder.append(line);               
        }
        else throw new Exception("HTTP error: " + String.valueOf(statuscode));
        return builder.toString();
    }catch(Exception e){e.printStackTrace();}
    return null;
}

What is wrong with the code?

thanks

Answer 1

You need to login to the requested site in order to download or access the xml. This can be done by authenticated schema based upon what is supported. Normally, there are 2 types of schemas where used. Basic and Digest. Below code will help you for BASIC AUTH.

HttpClient httpclient = new DefaultHttpClient();
    HttpResponse response;
    String _username = "username";
    String _password = "password";
    try {
         ((AbstractHttpClient) httpclient).getCredentialsProvider().setCredentials(
                new org.apache.http.auth.AuthScope(webhostname, webport)),
                new org.apache.http.auth.UsernamePasswordCredentials(_username, _password));

        response = httpclient.execute(new HttpGet(completeurlhere));
        StatusLine statusLine = response.getStatusLine();
        if(statusLine.getStatusCode() == HttpStatus.SC_OK) {
            try {
                InputStream is = response.getEntity().getContent();
                this._data = is;

            } catch(Exception ex) {
                Log.e("DBF Error",ex.toString());
            }                
        } else {
            response.getEntity().getContent().close();
            throw new IOException(statusLine.getReasonPhrase());
        }
    } catch(ClientProtocolException cpe) {
        Log.e("ClientProtocolException @ at FPT",cpe.toString());
    } catch(Exception ex) {
        Log.e("Exception at FETCHPROJECTASK",ex.toString());
    }

Answer 2

Well a 401 means you aren't Authorized to do the GET request. You should ask the website how to Authenticate the request...

Authorization happens through the Authorization Header in the HTTP request. You should look into that and probably fill that header yourself with your credentials... (if the server accepts that)