Examples of org.apache.wss4j.common.ext.WSPasswordCallback

org.apache.wss4j.common.ext.WSPasswordCallback
Simple class to provide a password callback mechanism.
It uses the JAAS authentication mechanisms and callback methods. In addition to the identifier (user name) this class also provides information what type of information the callback handle method shall provide.
The WSPasswordCallback class defines the following usage codes:
- UNKNOWN - an unknown usage. Never used by the WSS4J implementation and shall be treated as an error by the handle method.
- DECRYPT - need a password to get the private key of this identifier (username) from the keystore. WSS4J uses this private key to decrypt the session (symmetric) key. Because the encryption method uses the public key to encrypt the session key it needs no password (a public key is usually not protected by a password).
- USERNAME_TOKEN - need the password to fill in or to verify a UsernameToken.
- SIGNATURE - need the password to get the private key of this identifier (username) from the keystore. WSS4J uses this private key to produce a signature. The signature verification uses the public key to verify the signature.
- SECURITY_CONTEXT_TOKEN - need the key to to be associated with a wsc:SecurityContextToken.
- PASSWORD_ENCRYPTOR_PASSWORD - return the password used with a PasswordEncryptor implementation to decrypt encrypted passwords stored in Crypto properties files

        }
        LOG.fine("Using Signature algorithm " + sigAlgo);
        ub.queryParam(SSOConstants.SIG_ALG, URLEncoder.encode(sigAlgo, "UTF-8"));
        
        // Get the password
        WSPasswordCallback[] cb = {new WSPasswordCallback(signatureUser, WSPasswordCallback.SIGNATURE)};
        callbackHandler.handle(cb);
        String password = cb[0].getPassword();
        
        // Get the private key
        PrivateKey privateKey = crypto.getPrivateKey(signatureUser, password);

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        CallbackHandler handler = getCallbackHandler(message, callingClass);
        if (handler == null) {
            return null;
        }
        
        WSPasswordCallback[] cb = {new WSPasswordCallback(userName, type)};
        try {
            handler.handle(cb);
        } catch (Exception e) {
            return null;
        }

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        if (handler == null) {
            policyNotAsserted(info, "No callback handler and no password available");
            return null;
        }
        
        WSPasswordCallback[] cb = {new WSPasswordCallback(userName, usage)};
        try {
            handler.handle(cb);
        } catch (Exception e) {
            policyNotAsserted(info, e);
        }

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            if (alias == null) {
                alias = crypto.getDefaultX509Identifier();
            }
            if (alias != null) {
                CallbackHandler callback = SecurityUtils.getCallbackHandler(message, this.getClass());
                WSPasswordCallback passwordCallback = 
                    new WSPasswordCallback(alias, WSPasswordCallback.DECRYPT);
                callback.handle(new Callback[] {passwordCallback});
    
                Key privateKey = crypto.getPrivateKey(alias, passwordCallback.getPassword());
                properties.setDecryptionKey(privateKey);
            }
        }
    }

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                @Override
                public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
                    for (Callback callback : callbacks) {
                        if (callback instanceof WSPasswordCallback) {
                            WSPasswordCallback wsPasswordCallback = (WSPasswordCallback)callback;
                            wsPasswordCallback.setPassword(password);
                        }
                    }
                }
            };
        }

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        }
        
        public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
            for (int i = 0; i < callbacks.length; i++) {
                if (callbacks[i] instanceof WSPasswordCallback) {
                    WSPasswordCallback pc = (WSPasswordCallback)callbacks[i];
                    
                    String id = pc.getIdentifier();
                    SecurityToken tok = store.getToken(id);
                    if (tok != null && !tok.isExpired()) {
                        pc.setKey(tok.getSecret());
                        pc.setKey(tok.getKey());
                        pc.setCustomToken(tok.getToken());
                        return;
                    }
                }
            }
            if (internal != null) {

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            store = st;
        }
        
        public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
            for (int i = 0; i < callbacks.length; i++) {
                WSPasswordCallback pc = (WSPasswordCallback)callbacks[i];
                
                String id = pc.getIdentifier();
                SecurityToken tok = store.getToken(id);
                if (tok != null && !tok.isExpired()) {
                    pc.setKey(tok.getSecret());
                    pc.setCustomToken(tok.getToken());
                    return;
                }
            }
            if (internal != null) {
                internal.handle(callbacks);

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            if ((alias == null || "".equals(alias)) && (signatureCrypto != null)) {
                alias = signatureCrypto.getDefaultX509Identifier();
                LOG.fine("Signature alias is null so using default alias: " + alias);
            }
            // Get the password
            WSPasswordCallback[] cb = {new WSPasswordCallback(alias, WSPasswordCallback.SIGNATURE)};
            LOG.fine("Creating SAML Token");
            callbackHandler.handle(cb);
            String password = cb[0].getPassword();
    
            LOG.fine("Signing SAML Token");

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    public static String getCallbackPwd(String userName, int usage, CallbackHandler handler) {
        if (handler == null) {
            return null;
        }
        WSPasswordCallback[] cb = {
            new WSPasswordCallback(userName, usage)
        };
        try {
            handler.handle(cb);
        } catch (Exception e) {
            throw new CryptoProviderException("Cannot get password from callback: " + e, e);

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    public void handle(Callback[] callbacks)
        throws IOException, UnsupportedCallbackException {
        for (int i = 0; i < callbacks.length; i++) {
            if (callbacks[i] instanceof WSPasswordCallback) {
                WSPasswordCallback pc = (WSPasswordCallback) callbacks[i];
                if (pc.getUsage() == WSPasswordCallback.USERNAME_TOKEN
                        && "alice".equals(pc.getIdentifier())) {
                    pc.setPassword("verySecret");
                } else if (pc.getUsage() == WSPasswordCallback.SIGNATURE
                        && "wss40".equals(pc.getIdentifier())) {
                    pc.setPassword("security");
                } else {
                    throw new IOException("Authentication failed");
                }
            } else {
                throw new UnsupportedCallbackException(callbacks[i], "Unrecognized Callback");

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