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      1 /*
      2  *
      3  * Copyright (c) 2007 Kungliga Tekniska Hgskolan
      4  * (Royal Institute of Technology, Stockholm, Sweden).
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  *
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  *
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * 3. Neither the name of the Institute nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  * Id
     35  */
     36 
     37 import javax.security.auth.login.*;
     38 import javax.security.auth.callback.*;
     39 
     40 public class KerberosInit {
     41 
     42     private class TestCallBackHandler implements CallbackHandler {
     43 
     44 	public void handle(Callback[] callbacks)
     45 	    throws UnsupportedCallbackException {
     46 	    for (int i = 0; i < callbacks.length; i++) {
     47 		if (callbacks[i] instanceof TextOutputCallback) {
     48 		    TextOutputCallback toc = (TextOutputCallback)callbacks[i];
     49 		    System.out.println(toc.getMessage());
     50 		} else if (callbacks[i] instanceof NameCallback) {
     51 		    NameCallback nc = (NameCallback)callbacks[i];
     52 		    nc.setName("lha");
     53 		} else if (callbacks[i] instanceof PasswordCallback) {
     54 		    PasswordCallback pc = (PasswordCallback)callbacks[i];
     55 		    pc.setPassword("foo".toCharArray());
     56 		} else {
     57 		    throw new
     58 			UnsupportedCallbackException(callbacks[i],
     59 						     "Unrecognized Callback");
     60 		}
     61 	    }
     62 	}
     63     }
     64     private TestCallBackHandler getHandler() {
     65 	return new TestCallBackHandler();
     66     }
     67 
     68     public static void main(String[] args) {
     69 
     70         LoginContext lc = null;
     71         try {
     72             lc = new LoginContext("kinit", new KerberosInit().getHandler());
     73         } catch (LoginException e) {
     74             System.err.println("Cannot create LoginContext. " + e.getMessage());
     75 	    e.printStackTrace();
     76             System.exit(1);
     77         } catch (SecurityException e) {
     78             System.err.println("Cannot create LoginContext. " + e.getMessage());
     79 	    e.printStackTrace();
     80             System.exit(1);
     81         }
     82 
     83         try {
     84             lc.login();
     85         } catch (LoginException e) {
     86             System.err.println("Authentication failed:" + e.getMessage());
     87 	    e.printStackTrace();
     88             System.exit(1);
     89         }
     90 
     91 	System.out.println("lc.login ok");
     92 	System.exit(0);
     93     }
     94 }
     95 
     96