https://www.commsec.com.au

I am trying to setup a HttpUrlConnection object using:
https://www.commsec.com.au/Default.aspx?LoginName=xxx&Password=yyy
and URLEncoder.encode() the part after "?"
Do I need to treat the password differently, since it is a password
input?

Anthony

On Jul 14, 2:24 am, Roedy Green <see_webs...@mindprod.com.invalid>
wrote:

Thanks Roedy.

What about Cookie? Firefox stores this cookie called "stn"
after I logged in, but if I delete this cookie and refresh,
I will be kicked back to the front login screen. So I think
it is the session id cookie. Don't I need to send back
a session id every time I POST?

Also, how does the Autheticator knows what are the <input>
names for the username and password? Shouldn't they be specified
somehow? (for this site, they are "LoginName" and "Password")

Below is my attempt using the Autheticator, but instead of
next_page being the string of the next page after a successful login,
it returned the front page of the site. So the method is not
successful. Do you have any idea what is wrong?

Many thanks!

Anthony

My Code
========
import java.net.*;
import java.io.*;

public class Test2 {

   private String login_url_str = "https://www.comsec.com.au/
Default.aspx";

   public Test2() {
   }

   public static void main(String[] args) {
       Test2 test1 = new Test2();
       test1.execute();
   }

   private void execute() {
       //Setup for https
       java.security.Security.addProvider(new
com.sun.net.ssl.internal.ssl.
                                  Provider());
       System.setProperty("java.protocol.handler.pkgs",
                  "com.sun.net.ssl.internal.www.protocol");

       Authenticator.setDefault( new MyAuthenticator() );

       try {
           URL url = new URL(login_url_str);
           //For handling POST request
           String next_page = getURLPostString(url,"");
           System.out.println(next_page);

       } catch (IOException ex) {
           System.out.println(ex);
           System.exit(1);
       }

   }

   /** Post a string to an URL and get the reply as a string. Returns
an empty
    string if things didn't work out. */
   //code from: http://martin.nobilitas.com/java/cookies.html
   private String getURLPostString(URL url, String body) {
       StringBuffer sb = new StringBuffer();

       // find the newline character(s) on the current system
       String newline = null;
       try {
           newline = System.getProperty("line.separator");
       } catch (Exception e) {
           newline = "\n";
       }

       try {
           // URL must use the http protocol!
           HttpURLConnection conn = (HttpURLConnection)
url.openConnection();

           conn.setRequestMethod("POST");
           conn.setAllowUserInteraction(false); // you may not ask
the user
           conn.setDoOutput(true); // we want to send things
           // the Content-type should be default, but we set it
anyway
           conn.setRequestProperty("Content-type",
                                   "application/x-www-form-
urlencoded");
           // the content-length should not be necessary, but we're
cautious
           conn.setRequestProperty("Content-length",
                                   Integer.toString(body.length()));

           // get the output stream to POST our form data
           OutputStream rawOutStream = conn.getOutputStream();
           PrintWriter pw = new PrintWriter(rawOutStream);

           pw.print(body); // here we "send" our body!
           pw.flush();
           pw.close();

           // get the input stream for reading the reply
           // IMPORTANT! Your body will not get transmitted if you
get the
           // InputStream before completely writing out your output
first!
           InputStream rawInStream = conn.getInputStream();

           // get response
           BufferedReader rdr = new BufferedReader(new
InputStreamReader(
                   rawInStream));
           String line;

           while ((line = rdr.readLine()) != null) {
               sb.append(line);
               sb.append(newline);
           }
           return sb.toString();
       } catch (Exception e) {
           System.out.println("Exception " + e.toString());
           e.printStackTrace();
       }
       return ""; // an exception occurred
   }

}

class MyAuthenticator extends Authenticator
  {
  /**
  * Called when password authorization is needed.
  * @return The PasswordAuthentication collected from the
  * user, or null if none is provided.
  */
  protected PasswordAuthentication getPasswordAuthentication()
     {
     return new PasswordAuthentication ( "usernameblah",
"passwordblah".toCharArray() );
     }
  }

On Jul 14, 2:25 am, Roedy Green <see_webs...@mindprod.com.invalid>
wrote:

How is this relate to the Authenticator you mentioned?
If I use the Authenticator, do I need to use your "HTTP GET/POST"
library?

Anthony

On Jul 14, 2:25 am, Roedy Green <see_webs...@mindprod.com.invalid>
wrote:

How is this relate to the Authenticator you mentioned?
If I use the Authenticator, do I need to use your "HTTP GET/POST"
library?

Anthony

The catch is it is about 3 MB.  You would not want to download that on
every Applet.  You would want to pre-install it in an EXT directory or
use Java Web Start so it will be cached.