URLConnection in java using username, password, token

Question

I am trying to Connect to url using URLConnection, in java with username and password. This is the following code I am using:

package com.nivi.org.client;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

import com.sun.jersey.core.util.Base64;

public class GetURLContent {
    public static void main(String[] args) {

        URL url;

        try {

            url = new URL("http://sampleurl.co.uk");

            URLConnection conn = url.openConnection();


            String username = "username";
            String password = "password";
            String Token = "zzzzzzzzzzzzzzzzzzzzz";


            System.setProperty("http.proxyHost", "proxyhostname");
            System.setProperty("http.proxyPort", "8080");


            String userpass = username + ":" + password;
            String basicAuth = "Basic " + new String(new Base64().encode(userpass.getBytes()));
            conn.setRequestProperty ("Authorization", basicAuth);
            conn.setRequestProperty ("Token", Token);


            BufferedReader br = new BufferedReader(
                               new InputStreamReader(conn.getInputStream()));

            System.out.println("br............."+br.toString());

            br.close();

            System.out.println("Done");

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

======================================= I am getting the following error

java.io.IOException: Server returned HTTP response code: 403 for URL:
http://sampleurl.co.uk
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1625)
    at com.nivi.org.client.GetURLContent.main(GetURLContent.java:63)

=======================================

First of all my question is Are these following lines in the code are correct?

  conn.setRequestProperty ("Authorization", basicAuth);
  conn.setRequestProperty ("Token", Token);

may i know which protocal u r using HHTP or https , and your are passing user name only , so you should pass user name including passowrd , for aunthentication purpose we should pass both values . — sravan
– sravan, Commented Nov 1, 2013 at 10:52
@savan Read the code. He is passing both, and HTTP or HTTPS makes no difference. — user207421
– user207421, Commented Aug 14, 2020 at 1:07

Stephen C · Accepted Answer · 2013-11-01 13:35:35Z

Are these following lines in the code are correct?

It depends on how the actual website you are accessing implements its user authentication.

What you appear to be doing is a combination of HTTP Basic Authentication (i.e. the Authorization header), and something involving a non-standard header called Token. This may be sufficient, if the website supports Basic Authentication.

You should probably read the website's programmer documentation of how their web APIs work. If there isn't any such documentation available to you, use your browsers web development tools to identify the mechanism that the site is using when you log in via a web browser ... and attempt to get your client to behave the same way.

One thing to note is that sending a Basic authorization response in an HTTP request is insecure. Use an HTTPS request if that is an option.

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