Java 类javax.security.auth.callback.Callback 实例源码

public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
    for (Callback c: callbacks) {
        if (c instanceof NameCallback) {
            ((NameCallback) c).setName(username);
        } else if (c instanceof PasswordCallback) {
            ((PasswordCallback) c).setPassword(password.toCharArray());
        }
        else if (c instanceof KeyChoiceCallback) {
            KeyChoiceCallback kcc = (KeyChoiceCallback)c;
            try {
                int idx = kcc.lookupKey(key);
                kcc.setSelectedIndex(idx);
            }
            catch (IllegalArgumentException e) {
                throw new MissingCredsException(kcc);
            }
        }
        else {
            throw new UnsupportedCallbackException(c);
        }
    }
}

@Override
public boolean login() throws LoginException {
    final Callback[] callbacks = new Callback[] {new NameCallback("f"), new PasswordCallback("f", false)};
    try {
        this.callbackHandler.handle(callbacks);
    } catch (final Exception e) {
        throw new LoginException();
    }

    final String userName = ((NameCallback) callbacks[0]).getName();
    final String password = new String(((PasswordCallback) callbacks[1]).getPassword());

    if ("test".equals(userName) && "test".equals(password)) {
        return true;
    }

    throw new LoginException();
}

public void handle(Callback[] callbacks)
        throws UnsupportedCallbackException {
    boolean didSetName = false;
    boolean didSetPassword = false;
    for (Callback cb : callbacks)
        if (cb instanceof NameCallback) {
            ((NameCallback) cb).setName(u);
            didSetName = true;
        } else if (cb instanceof PasswordCallback) {
            ((PasswordCallback) cb).setPassword(p);
            didSetPassword = true;
        } else {
            throw new UnsupportedCallbackException(cb,
                    "Unsupported Callback type: "
                    + cb.getClass().getName());
        }
    if (!didSetName)
        throw new IllegalStateException(
                "Supplied Callbacks does not include a NameCallback");
    if (!didSetPassword)
        throw new IllegalStateException("Supplied Callbacks "
                + "does not include a PasswordCallback");
}

@Override
public void handle(final Callback[] callbacks) throws UnsupportedCallbackException {
    Arrays.stream(callbacks).filter(callback -> {
        if (callback.getClass().equals(NameCallback.class)) {
            ((NameCallback) callback).setName(this.userName);
            return false;
        }
        if (callback.getClass().equals(PasswordCallback.class)) {
            ((PasswordCallback) callback).setPassword(this.password.toCharArray());
            return false;
        }
        return true;
    }).findFirst().ifPresent(callback -> {
        throw new RuntimeException(new UnsupportedCallbackException(callback, "Unrecognized Callback"));
    });
}

@Override
public boolean login() throws LoginException {
    final Callback[] callbacks = new Callback[] {new NameCallback("f"), new PasswordCallback("f", false)};
    try {
        this.callbackHandler.handle(callbacks);
    } catch (final Exception e) {
        throw new LoginException();
    }

    final String userName = ((NameCallback) callbacks[0]).getName();
    final String password = new String(((PasswordCallback) callbacks[1]).getPassword());

    if ("test".equals(userName) && "test".equals(password)) {
        return true;
    }

    throw new LoginException();
}

@Override
protected Document process(Document document) throws WSSecurityException {
    WSSecurityEngine secEngine = new WSSecurityEngine();

    WSHandlerResult results = secEngine.processSecurityHeader(document, null, 
        new CallbackHandler() {
            public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
                for (Callback callback : callbacks) {
                    if (callback instanceof WSPasswordCallback) {
                        ((WSPasswordCallback)callback).setPassword(getCertPassword());
                    }
                }
            }
        }, getCrypto());

    return document;
}

public boolean login() throws LoginException {
    final Callback[] callbacks = new Callback[] {new NameCallback("f"), new PasswordCallback("f", false)};
    try {
        this.callbackHandler.handle(callbacks);
    } catch (final Exception e) {
        throw new LoginException();
    }

    final String userName = ((NameCallback) callbacks[0]).getName();
    final String password = new String(((PasswordCallback) callbacks[1]).getPassword());

    if (userName.equals("test") && password.equals("test")) {
        return true;
    }

    throw new LoginException();
}

@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
    if (callbacks != null) {
        for (Callback callback : callbacks) {
            if (callback instanceof NameCallback) {
                ((NameCallback) callback).setName(username);
            } else if (callback instanceof PasswordCallback) {
                ((PasswordCallback) callback).setPassword(password);
            } else {
                throw new UnsupportedCallbackException(callback);

            }
        }
        clearCredentials();
    }
}

/**
 * Retrieve or display the information requested in the provided Callbacks.
 * 
 * @param callbacks
 *            an array of <code>Callback</code> objects provided by an
 *            underlying security service which contains the information
 *            requested to be retrieved or displayed.
 * 
 * @throws IOException
 *             if an input or output error occurs.
 * 
 * @throws UnsupportedCallbackException
 *             if the implementation of this method does not support one or
 *             more of the Callbacks specified in the <code>callbacks</code>
 *             parameter.
 */
@Override
public void handle(Callback[] callbacks) throws IOException,
        UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            ((NameCallback) callback).setName(wsProxyInfo
                    .getUserCredentials().getUser());
        } else if (callback instanceof PasswordCallback) {
            ((PasswordCallback) callback).setPassword(wsProxyInfo
                    .getUserCredentials().getPassword().toCharArray());
        } else {
            throw new UnsupportedCallbackException(callback,
                    "Unrecognized Callback");
        }
    }
}

public void handle(Callback[] callbacks)
        throws IOException, UnsupportedCallbackException {
    System.out.println("Callback Handler - handle called");
    for (int i = 0; i < callbacks.length; i++) {
        if (callbacks[i] instanceof NameCallback) {
            NameCallback nameCallback = (NameCallback) callbacks[i];
            nameCallback.setName(name);
        } else if (callbacks[i] instanceof PasswordCallback) {
            PasswordCallback passwordCallback = (PasswordCallback) callbacks[i];
            passwordCallback.setPassword(password.toCharArray());
        } else {
            throw new UnsupportedCallbackException(callbacks[i],
                    "The submitted Callback is unsupported");
        }
    }
}

@Override
public boolean login() throws LoginException {
    final Callback[] callbacks = new Callback[] {new NameCallback("f"), new PasswordCallback("f", false)};
    try {
        this.callbackHandler.handle(callbacks);
    } catch (final Exception e) {
        throw new LoginException();
    }

    final String userName = ((NameCallback) callbacks[0]).getName();
    final String password = new String(((PasswordCallback) callbacks[1]).getPassword());

    if ("test".equals(userName) && "test".equals(password)) {
        return true;
    }

    throw new LoginException();
}

public void handle(Callback[] callbacks) throws IOException,
        UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            NameCallback ncb = (NameCallback) callback;
            ncb.setName(username);
        } else if (callback instanceof PasswordCallback) {
            PasswordCallback pwcb = (PasswordCallback) callback;
            pwcb.setPassword(password.toCharArray());
        } else {
            throw new UnsupportedCallbackException(
                    callback,
                    "We got a "
                            + callback.getClass().getCanonicalName()
                            + ", but only NameCallback and PasswordCallback is supported");
        }
    }
}

public void handle(Callback[] callbacks)
        throws UnsupportedCallbackException {
    boolean didSetName = false;
    boolean didSetPassword = false;
    for (Callback cb : callbacks)
        if (cb instanceof NameCallback) {
            ((NameCallback) cb).setName(u);
            didSetName = true;
        } else if (cb instanceof PasswordCallback) {
            ((PasswordCallback) cb).setPassword(p);
            didSetPassword = true;
        } else {
            throw new UnsupportedCallbackException(cb,
                    "Unsupported Callback type: "
                    + cb.getClass().getName());
        }
    if (!didSetName)
        throw new IllegalStateException(
                "Supplied Callbacks does not include a NameCallback");
    if (!didSetPassword)
        throw new IllegalStateException("Supplied Callbacks "
                + "does not include a PasswordCallback");
}

@Test
public void testSaslClientCallbackHandler() throws UnsupportedCallbackException {
  final Token<? extends TokenIdentifier> token = createTokenMock();
  when(token.getIdentifier()).thenReturn(DEFAULT_USER_NAME.getBytes());
  when(token.getPassword()).thenReturn(DEFAULT_USER_PASSWORD.getBytes());

  final NameCallback nameCallback = mock(NameCallback.class);
  final PasswordCallback passwordCallback = mock(PasswordCallback.class);
  final RealmCallback realmCallback = mock(RealmCallback.class);
  final RealmChoiceCallback realmChoiceCallback = mock(RealmChoiceCallback.class);

  Callback[] callbackArray = {nameCallback, passwordCallback,
      realmCallback, realmChoiceCallback};
  final SaslClientCallbackHandler saslClCallbackHandler = new SaslClientCallbackHandler(token);
  saslClCallbackHandler.handle(callbackArray);
  verify(nameCallback).setName(anyString());
  verify(realmCallback).setText(anyString());
  verify(passwordCallback).setPassword(any(char[].class));
}

public void handle(Callback[] callbacks) throws
        UnsupportedCallbackException, IOException {
    for (int i=0; i<callbacks.length; i++) {
        Callback callBack = callbacks[i];

        if (callBack instanceof NameCallback) {
            getAnswer();
            ((NameCallback)callBack).setName(username);
        } else if (callBack instanceof PasswordCallback) {
            getAnswer();
            ((PasswordCallback)callBack).setPassword(password);
            if (password != null) Arrays.fill(password, ' ');
        } else {
            throw new UnsupportedCallbackException(callBack,
                    "Call back not supported");
        }
    }
}

/**
 * Retrieve the information requested in the provided Callbacks.  This
 * implementation only recognizes <code>NameCallback</code> and
 * <code>PasswordCallback</code> instances.
 *
 * @param callbacks The set of callbacks to be processed
 *
 * @exception IOException if an input/output error occurs
 * @exception UnsupportedCallbackException if the login method requests
 *  an unsupported callback type
 */
public void handle(Callback callbacks[])
    throws IOException, UnsupportedCallbackException {

    for (int i = 0; i < callbacks.length; i++) {

        if (callbacks[i] instanceof NameCallback) {
            if (realm.getDebug() >= 3)
                realm.log("Returning username " + username);
            ((NameCallback) callbacks[i]).setName(username);
        } else if (callbacks[i] instanceof PasswordCallback) {
            if (realm.getDebug() >= 3)
                realm.log("Returning password " + password);
            ((PasswordCallback) callbacks[i]).setPassword
                (password.toCharArray());
        } else {
            throw new UnsupportedCallbackException(callbacks[i]);
        }


    }

}

@Override
public ExchangeSession openSession(ExchangeLogin login) {
    ApiKeyCallback apiKey = new ApiKeyCallback();
    ApiSecretCallback apiSecret = new ApiSecretCallback();
    PasswordCallback password = new PasswordCallback("GDAX passphrase", false);

    Callback[] callbacks = new Callback[]{
            apiKey,
            apiSecret,
            password
    };
    CallbackHandler callbackHandler = login.getCallbackHandler();
    try {
        callbackHandler.handle(callbacks);
    } catch (IOException | UnsupportedCallbackException e) {
        throw new RuntimeException(e);
    }

    String apiKeyTxt = apiKey.getApiKey();
    char[] passphrase = password.getPassword();
    SecretKeySpec keySpec = new SecretKeySpec(apiSecret.getSecretData(), "HmacSHA256");
    return new GdaxExchangeSession(this, apiKeyTxt, keySpec, passphrase);
}

@Override
public CallbackHandler getCallbackHandler() {
    return callbacks -> {
        for (Callback cb : callbacks) {
            if (cb instanceof ApiKeyCallback) {
                ((ApiKeyCallback) cb).setApiKey(apiKey);
            } else if (cb instanceof ApiSecretCallback) {
                ((ApiSecretCallback) cb).setSecretData(apiSecret);
            } else if (cb instanceof PasswordCallback) {
                ((PasswordCallback) cb).setPassword(passphrase);
            } else {
                throw new UnsupportedCallbackException(cb);
            }
        }
    };
}

/**
 * Handles the callbacks; only supports {@link NameCallback} and {@link PasswordCallback}.
 * @throws UnsupportedCallbackException if an unsupported callback is encountered
 */
@Override
public void handle(final Callback[] callbacks)
        throws UnsupportedCallbackException {

    for (final Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            ((NameCallback) callback).setName(username);

        } else if (callback instanceof PasswordCallback) {
            ((PasswordCallback) callback)
                    .setPassword(password.toCharArray());

        } else {
            throw new UnsupportedCallbackException
                    (callback, "Unrecognized Callback");
        }
    }
}

@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            NameCallback nameCallback = (NameCallback) callback;
            nameCallback.setName(nameCallback.getDefaultName());
        } else if (callback instanceof PasswordCallback) {
            PasswordCallback passwordCallback = (PasswordCallback) callback;
            passwordCallback.setPassword(TestJaasConfig.PASSWORD.toCharArray());
        } else if (callback instanceof RealmCallback) {
            RealmCallback realmCallback = (RealmCallback) callback;
            realmCallback.setText(realmCallback.getDefaultText());
        } else if (callback instanceof AuthorizeCallback) {
            AuthorizeCallback authCallback = (AuthorizeCallback) callback;
            if (TestJaasConfig.USERNAME.equals(authCallback.getAuthenticationID())) {
                authCallback.setAuthorized(true);
                authCallback.setAuthorizedID(authCallback.getAuthenticationID());
            }
        }
    }
}

@Override
public void handle(Callback[] callbacks) throws IOException,
        UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            NameCallback nc = (NameCallback) callback;
            nc.setName(userName);
        } else if (callback instanceof PasswordCallback) {
            PasswordCallback pc = (PasswordCallback) callback;
            pc.setPassword(password);
        } else {
            throw new UnsupportedCallbackException(callback,
                    "Unrecognized Callback");
        }
    }
}

public void handle(Callback[] callbacks) throws
        UnsupportedCallbackException, IOException {
    for (int i=0; i<callbacks.length; i++) {
        Callback callBack = callbacks[i];

        if (callBack instanceof NameCallback) {
            getAnswer();
            ((NameCallback)callBack).setName(username);
        } else if (callBack instanceof PasswordCallback) {
            getAnswer();
            ((PasswordCallback)callBack).setPassword(password);
            if (password != null) Arrays.fill(password, ' ');
        } else {
            throw new UnsupportedCallbackException(callBack,
                    "Call back not supported");
        }
    }
}

@Override
public void handle(Callback[] callbacks) throws IOException,
        UnsupportedCallbackException {
    System.out.println("TestCallbackHandler will get resolved through"
            + " auth.login.defaultCallbackHandler property.");
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            ((NameCallback) callback).setName(USER_NAME);
        } else if (callback instanceof PasswordCallback) {
            ((PasswordCallback) callback).setPassword(
                    PASSWORD.toCharArray());
        } else {
            throw new UnsupportedCallbackException(callback);
        }
    }
}

@Override
public void handle(Callback[] callbacks) throws IOException,
        UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            NameCallback nc = (NameCallback) callback;
            nc.setName(userName);
        } else if (callback instanceof PasswordCallback) {
            PasswordCallback pc = (PasswordCallback) callback;
            pc.setPassword(password);
        } else {
            throw new UnsupportedCallbackException(callback,
                    "Unrecognized Callback");
        }
    }
}

@Override
public boolean login() throws LoginException {
    if (debug) {
        logger.debug(this.getClass().getName() + " login called.");
    }

    if (Constants.FEDORA_HOME == null || "".equals(Constants.FEDORA_HOME.trim())) {
        logger.error("FEDORA_HOME constant is not set");
        return false;
    }

    final NameCallback nc = new NameCallback("username");
    final PasswordCallback pc = new PasswordCallback("password", false);
    final Callback[] callbacks = new Callback[] {
            nc, pc
    };

    try {
        handler.handle(callbacks);
    } catch (IOException ioe) {
        ioe.printStackTrace();
        throw new LoginException("IOException occured: " + ioe.getMessage());
    } catch (UnsupportedCallbackException ucbe) {
        ucbe.printStackTrace();
        throw new LoginException("UnsupportedCallbackException encountered: "
                + ucbe.getMessage());
    }

    // Grab the username and password from the callbacks.
    final String username = nc.getName();
    final String password = new String(pc.getPassword());

    successLogin = authenticate(username, password);

    return successLogin;
}

@Override
public void handle(final Callback[] callbacks)
    throws UnsupportedCallbackException {
    for (final Callback callback : callbacks) {
        if (callback.getClass().equals(NameCallback.class)) {
            ((NameCallback) callback).setName(this.userName);
        } else if (callback.getClass().equals(PasswordCallback.class)) {
            ((PasswordCallback) callback).setPassword(this.password
                .toCharArray());
        } else {
            throw new UnsupportedCallbackException(callback,
                "Unrecognized Callback");
        }
    }
}

@Override
public void handle(final Callback[] callbacks)
    throws UnsupportedCallbackException {
    for (final Callback callback : callbacks) {
        if (callback.getClass().equals(NameCallback.class)) {
            ((NameCallback) callback).setName(this.userName);
        } else if (callback.getClass().equals(PasswordCallback.class)) {
            ((PasswordCallback) callback).setPassword(this.password
                .toCharArray());
        } else {
            throw new UnsupportedCallbackException(callback,
                "Unrecognized Callback");
        }
    }
}

@Test
public void testSaslClientCallbackHandlerWithException() {
  final Token<? extends TokenIdentifier> token = createTokenMock();
  when(token.getIdentifier()).thenReturn(DEFAULT_USER_NAME.getBytes());
  when(token.getPassword()).thenReturn(DEFAULT_USER_PASSWORD.getBytes());
  final SaslClientCallbackHandler saslClCallbackHandler = new SaslClientCallbackHandler(token);
  try {
    saslClCallbackHandler.handle(new Callback[] { mock(TextOutputCallback.class) });
  } catch (UnsupportedCallbackException expEx) {
    //expected
  } catch (Exception ex) {
    fail("testSaslClientCallbackHandlerWithException error : " + ex.getMessage());
  }
}

@Override
public void handle(final Callback[] callbacks) throws IOException, UnsupportedCallbackException {
    Arrays.stream(callbacks)
            .filter(WSPasswordCallback.class::isInstance)
            .map(WSPasswordCallback.class::cast)
            .forEach(c -> {
                LOGGER.debug("Evaluating [{}]", c.getIdentifier());
                c.setPassword(this.psw);
                LOGGER.debug("Authenticated [{}] successfully.", c.getIdentifier());
            });
}

@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
    if (callbacks != null) {
        for (final Callback cb : callbacks) {
            if (cb != null) {
                // CAN
                if (cb instanceof CustomTextInputCallback) {
                    ((CustomTextInputCallback)cb).setText(can);
                    return;
                }
                else if (cb instanceof CustomAuthorizeCallback) {
                    ((CustomAuthorizeCallback)cb).setAuthorized(true);
                    return;
                }
                // PIN
                else if (cb instanceof PasswordCallback) {
                    ((PasswordCallback)cb).setPassword(pin != null ? pin.toCharArray() : null);
                    return;
                }
                else {
                    Log.e("com.mifirma", "Callback no soportada: " + cb.getClass().getName()); //$NON-NLS-1$
                }
            }
        }
    }
    else {
        Log.w("com.mifirma", "Se ha revibido un array de Callbacks nulo"); //$NON-NLS-1$
    }
    throw new UnsupportedCallbackException(null);
}

public void handle(final Callback[] callbacks)
    throws UnsupportedCallbackException {
    for (final Callback callback : callbacks) {
        if (callback.getClass().equals(NameCallback.class)) {
            ((NameCallback) callback).setName(this.userName);
        } else if (callback.getClass().equals(PasswordCallback.class)) {
            ((PasswordCallback) callback).setPassword(this.password
                .toCharArray());
        } else {
            throw new UnsupportedCallbackException(callback,
                "Unrecognized Callback");
        }
    }
}

@Override
public boolean login() throws LoginException {
    NameCallback userNameCallback = new NameCallback("userName");
    PasswordCallback passwordCallback = new PasswordCallback("password", false);
    Callback[] callbacks = { userNameCallback, passwordCallback };
    try {
        callbackHandler.handle(callbacks);
    } catch (IOException | UnsupportedCallbackException e) {
        throw new BrokerAuthenticationException("Error while handling callback ", e);
    }
    String userName = userNameCallback.getName();
    char[] password = passwordCallback.getPassword();
    return userName.equals("user") && Arrays.equals(password, new char[] { 'p', 'a', 's', 's' });
}

public void handle(Callback[] callbacks) throws UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            handleNameCallback((NameCallback) callback);
        } else if (callback instanceof PasswordCallback) {
            handlePasswordCallback((PasswordCallback) callback);
        } else if (callback instanceof RealmCallback) {
            handleRealmCallback((RealmCallback) callback);
        } else if (callback instanceof AuthorizeCallback) {
            handleAuthorizeCallback((AuthorizeCallback) callback);
        }
    }
}

public void handle(
                    Callback[] callbacks ) throws IOException, UnsupportedCallbackException {

    for (int i = 0; i < callbacks.length; i++) {
        if (callbacks[i] instanceof NameCallback) {
            NameCallback nc = (NameCallback) callbacks[i];
            nc.setName(username);
        } else if (callbacks[i] instanceof PasswordCallback) {
            PasswordCallback pc = (PasswordCallback) callbacks[i];
            pc.setPassword(password);
        }
    }
}

public void initialize(Subject subject, CallbackHandler callbackHandler, Map<String, ?> sharedState,
        Map<String, ?> options) {

    try {
        NameCallback nameCallback = new NameCallback("prompt");
        PasswordCallback passwordCallback = new PasswordCallback("prompt", false);

        callbackHandler.handle(new Callback[] { nameCallback, passwordCallback });
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

private static CallbackHandler getUsernamePasswordHandler(final String username, final String password) {
    return callbacks -> {
        for (Callback callback : callbacks) {
            if (callback instanceof NameCallback) {
                final NameCallback nameCallback = (NameCallback) callback;
                nameCallback.setName(username);
            } else if (callback instanceof PasswordCallback) {
                final PasswordCallback passCallback = (PasswordCallback) callback;
                passCallback.setPassword(password.toCharArray());
            } else {
                System.err.println("Unsupported Callback: " + callback.getClass().getName());
            }
        }
    };
}

@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException
{
    final String pw = sessionId == null ? "nosession" : sessionId;
    for( int i = 0; i < callbacks.length; i++ )
    {
        final WSPasswordCallback pwcb = (WSPasswordCallback) callbacks[i];
        pwcb.setPassword(pw);
    }
}

/**
    * Called by login() to acquire the username and password strings for authentication. This method does no validation
    * of either.
    *
    * @return String[], [0] = username, [1] = password
    */
   private String[] getUsernameAndPassword() throws LoginException {
if (callbackHandler == null) {
    throw new LoginException("No CallbackHandler available to collect authentication information");
}
NameCallback nc = new NameCallback("User name: ", "guest");
PasswordCallback pc = new PasswordCallback("Password: ", false);
Callback[] callbacks = { nc, pc };
String username = null;
String password = null;
try {
    callbackHandler.handle(callbacks);
    username = nc.getName();
    char[] tmpPassword = pc.getPassword();
    if (tmpPassword != null) {
    credential = new char[tmpPassword.length];
    System.arraycopy(tmpPassword, 0, credential, 0, tmpPassword.length);
    pc.clearPassword();
    password = new String(credential);
    }
} catch (IOException ioe) {
    throw new LoginException(ioe.toString());
} catch (UnsupportedCallbackException uce) {
    throw new LoginException("CallbackHandler does not support: " + uce.getCallback());
}
return new String[] { username, password };
   }

public void handle(Callback[] callbacks) throws UnsupportedCallbackException {
    for (Callback callback : callbacks) {
        if (callback instanceof NameCallback) {
            handleNameCallback((NameCallback) callback);
        } else if (callback instanceof PasswordCallback) {
            handlePasswordCallback((PasswordCallback) callback);
        } else if (callback instanceof RealmCallback) {
            handleRealmCallback((RealmCallback) callback);
        } else if (callback instanceof AuthorizeCallback) {
            handleAuthorizeCallback((AuthorizeCallback) callback);
        }
    }
}

/**
 * Authenticate the user
 */
public boolean login() throws LoginException {

    sLog.debug("Performing db authentication ... ");

    // Get callback parameters
    if (getCallbackHandler() == null)
        throw new LoginException("Error: no CallbackHandler available ");

    Callback[] callbacks = new Callback[2];
    callbacks[0] = new NameCallback("User Name: ");
    callbacks[1] = new PasswordCallback("Password: ", true);

    try {
        getCallbackHandler().handle(callbacks);
        String n = ((NameCallback) callbacks[0]).getName();
        String p = String.valueOf(((PasswordCallback) callbacks[1]).getPassword());

        HashMap userProps = new HashMap();
        userProps.put("username", n);
        userProps.put("password", p);

        if (doAuthenticate(userProps)) return true;

        // Authentication failed
        sLog.debug("Db authentication failed ... ");
        setAuthSucceeded(false);
        return false;
    } catch (Exception ex) {
        sLog.debug("Db authentication failed ... " + ex.getMessage(), ex);
        setAuthSucceeded(false);
        return false;
    }
}