package ctbrec;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;

public class WANIPFetcher {

    public static void main(String[] args) {
        try {
            String ip = getWANIP();
            System.out.println("Your WAN IP address is: " + ip);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static String getWANIP() throws Exception {
        URI uri = new URI("https://icanhazip.com");
        URL url = uri.toURL();  // Convert URI to URL
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");

        BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String inputLine;
        StringBuilder content = new StringBuilder();

        while ((inputLine = in.readLine()) != null) {
            content.append(inputLine);
        }

        in.close();
        connection.disconnect();

        return content.toString().trim();
    }
}