/*
 * SSLWebClient.java
 *
 * Created on den 10 januari 2005, 12:23
 */

import ip1.u2.WebPane;
import java.net.URL;
import java.net.URLConnection;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSession;
import javax.net.ssl.HttpsURLConnection;
import java.net.InetAddress;
import java.io.*;
import javax.swing.JTextArea;

/**
 *
 * @author Henrik & Maria
 */
public class SSLWebClient extends WebPane implements HostnameVerifier {
    
    /** Creates a new instance of SSLWebClient */
    public SSLWebClient() {
    }
    
    public boolean verify(String hostname, SSLSession session) {
        try {
            // Det här känns helgalet men funkar åtminstonne med exemplet i uppgiften
            String dn = session.getPeerCertificateChain()[0].getSubjectDN().getName();
            int start = dn.indexOf("CN=") + 3;
            int end = dn.indexOf(",", start);
            String certname = dn.substring(start, end);
            
            InetAddress iaU = InetAddress.getByName(hostname);
            InetAddress iaC = InetAddress.getByName(certname);
            return iaU.equals(iaC);
        } catch(Exception e) {
            e.printStackTrace();
        }
        return false;
    }
    
    protected void addContent(String urlString) {
         try {
            URL url = new URL(urlString);
            InputStream is;
            if(url.getProtocol().equals("https")) {
                HttpsURLConnection huc = (HttpsURLConnection) url.openConnection();
                huc.setHostnameVerifier(this);
                is = huc.getInputStream();
            } else {
                URLConnection uc = url.openConnection();
                is = uc.getInputStream();
            }
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            String line = "";
            content.setText(line);
            while((line = br.readLine()) != null)
                System.out.println(line);
                ((JTextArea) content).append(line + '\n');
        } catch (IOException e) {
            e.printStackTrace();
            content.setText(e.toString());
        }
    }
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        if(args.length > 0) {
            SSLWebClient sslwc = new SSLWebClient();
            sslwc.addContent(args[0]);
        }
    }
    
}