Re: https client

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 04 Jun 2007 20:50:35 -0400
Message-ID:
<4664b350$0$90270$14726298@news.sunsite.dk>
Shane wrote:

I am trying to write a basic https client. It will contact an https site,
post authentication details, follow some links, and retrieve some
information. This all seems like I am reinventing the wheel, but I am
struggling to find example code.


An example is attached below.

Arne

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

import java.net.*;
import java.io.*;
import java.security.*;
import java.security.cert.*;

import javax.net.ssl.*;

public class HttpsGetAuth {
    public static void main(String[] args) {
       try {
          SSLContext sslctx = SSLContext.getInstance("SSL");
          sslctx.init(null, new X509TrustManager[] { new
MyTrustManager() }, null);
 
HttpsURLConnection.setDefaultSSLSocketFactory(sslctx.getSocketFactory());
          //HttpsURLConnection.setDefaultHostnameVerifier(new
MyHostnameVerifier());
          Authenticator.setDefault(new MyAuthenticator());
          URL url = new URL("https://www.xxxx.dk/prot4.html");
          HttpsURLConnection con = (HttpsURLConnection)
url.openConnection();
          if (con.getResponseCode() == HttpsURLConnection.HTTP_OK) {
             InputStream is = con.getInputStream();
             OutputStream os = new FileOutputStream("C:\\z.z");
             byte[] b = new byte[1000];
             int n;
             while ((n = is.read(b)) >= 0) {
                os.write(b, 0, n);
             }
             os.close();
             is.close();
          }
          con.disconnect();
       } catch (NoSuchAlgorithmException e) {
          e.printStackTrace();
       } catch (KeyManagementException e) {
          e.printStackTrace();
       } catch (MalformedURLException e) {
          e.printStackTrace();
       } catch (FileNotFoundException e) {
          e.printStackTrace();
       } catch (IOException e) {
          e.printStackTrace();
       }
    }
}

class MyTrustManager implements X509TrustManager
{
     public void checkClientTrusted(X509Certificate[] chain, String
authType) {
     }
     public void checkServerTrusted(X509Certificate[] chain, String
authType) {
     }
     public X509Certificate[] getAcceptedIssuers() {
         return null;
     }
}

//class MyHostnameVerifier implements HostnameVerifier {
// public boolean verify(String urlHostName, SSLSession session) {
// return true;
// }
//}

class MyAuthenticator extends Authenticator {
    protected PasswordAuthentication getPasswordAuthentication() {
       return new PasswordAuthentication("xxxx", "xxxx".toCharArray());
    }
}

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