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   1 /*
   2  * To change this template, choose Tools | Templates
   3  * and open the template in the editor.
   4  */
   5 package org.collectionspace.hello.services.nuxeo;
   6
   7 /**
   8  *
   9  * @author sanjaydalal
  10  */
  11 import javax.security.auth.callback.Callback;
  12 import javax.security.auth.callback.CallbackHandler;
  13 import javax.security.auth.callback.NameCallback;
  14 import javax.security.auth.callback.PasswordCallback;
  15 import javax.security.auth.callback.UnsupportedCallbackException;
  16
  17 /**
  18  * Copied from jbossx.
  19  *
  20  * @author Scott.Stark@jboss.org
  21  */
  22 public class NuxeoCallbackHandler implements CallbackHandler {
  23
  24     private final String username;
  25     private char[] password;
  26     private final Object credential;
  27
  28     /**
  29      * Initializes the UsernamePasswordHandler with the username and password to
  30      * use.
  31      *
  32      * @param username the user name
  33      * @param password the password for this user
  34      */
  35     public NuxeoCallbackHandler(String username, char[] password) {
  36         this.username = username;
  37         this.password = password;
  38         credential = password;
  39     }
  40
  41     public NuxeoCallbackHandler(String username, Object credential) {
  42         this.username = username;
  43         this.credential = credential;
  44         if (credential instanceof char[]) {
  45             password = (char[]) credential;
  46         } else if (credential instanceof CharSequence) {
  47             password = credential.toString().toCharArray();
  48         }
  49     }
  50
  51     /**
  52      * Sets any NameCallback name property to the instance username, sets any
  53      * PasswordCallback password property to the instance, and any password.
  54      *
  55      * @exception UnsupportedCallbackException,
  56      *                thrown if any callback of type other than NameCallback or
  57      *                PasswordCallback are seen.
  58      */
  59     public void handle(Callback[] callbacks)
  60             throws UnsupportedCallbackException {
  61         for (Callback c : callbacks) {
  62             if (c instanceof NameCallback) {
  63                 NameCallback nc = (NameCallback) c;
  64                 nc.setName(username);
  65             } else if (c instanceof PasswordCallback) {
  66                 PasswordCallback pc = (PasswordCallback) c;
  67                 if (password == null) {
  68                     // We were given an opaque Object credential but a char[] is
  69                     // requested?
  70                     if (credential != null) {
  71                         String tmp = credential.toString();
  72                         password = tmp.toCharArray();
  73                     }
  74                 }
  75                 pc.setPassword(password);
  76             } else if (c instanceof NuxeoCallback) {
  77                 NuxeoCallback oc = (NuxeoCallback) c;
  78                 oc.setCredential(credential);
  79             } else {
  80                 throw new UnsupportedCallbackException(c,
  81                         "Unrecognized Callback");
  82             }
  83         }
  84     }
  85 }