Examples with FunctionCallException org.jaxen.FunctionCallException used on opensource projects

Example 6 with FunctionCallException

use of org.jaxen.FunctionCallException in project wso2-synapse by wso2.

the class EncryptFunction method encrypt.

/**
 * Encrypt a given plain text
 *
 * @param plainTextBytes The plaintext bytes to be encrypted
 * @return The cipher text
 * @throws FunctionCallException On error during encryption
 */
private String encrypt(byte[] plainTextBytes, String keyStorePath, String keyStorePassword, String alias, String keyStoreType, String algorithm) throws FunctionCallException {
    if (plainTextBytes == null) {
        throw new FunctionCallException("Plaintext can't be null.");
    }
    try {
        Cipher cipher = getCipherInstance(algorithm);
        KeyStore keyStore = KeyStoreManager.getKeyStore(keyStorePath, keyStorePassword, keyStoreType);
        Certificate certificate = KeyStoreManager.getCertificateFromStore(keyStore, alias);
        if (log.isDebugEnabled()) {
            log.debug("Certificate used for encrypting : " + certificate);
        }
        cipher.init(Cipher.ENCRYPT_MODE, certificate.getPublicKey());
        byte[] cipherText = cipher.doFinal(plainTextBytes);
        if (log.isDebugEnabled()) {
            log.debug(String.format("Successfully encrypted data using the algorithm '%s'", algorithm));
        }
        return Base64.getEncoder().encodeToString(cipherText);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | KeyStoreException | InvalidKeyException | IllegalBlockSizeException | BadPaddingException e) {
        throw new FunctionCallException("An error occurred while encrypting data.", e);
    }
}

Example 7 with FunctionCallException

use of org.jaxen.FunctionCallException in project wso2-synapse by wso2.

the class Base64DecodeFunction method decode.

private Object decode(boolean debugOn, String charset, String value) throws FunctionCallException {
    if (value == null || value.isEmpty()) {
        if (debugOn) {
            log.debug("Non empty string value should be provided for decode");
        }
        return NULL_STRING;
    }
    byte[] decodedValue;
    try {
        decodedValue = new Base64().decode(value.getBytes(charset));
    } catch (UnsupportedEncodingException e) {
        String msg = "Unsupported Charset";
        log.error(msg, e);
        throw new FunctionCallException(msg, e);
    }
    String decodedString;
    try {
        decodedString = new String(decodedValue, charset).trim();
    } catch (UnsupportedEncodingException e) {
        String msg = "Unsupported Charset";
        log.error(msg, e);
        throw new FunctionCallException(msg, e);
    }
    if (debugOn) {
        log.debug("Decoded base64 encoded value: " + value + " with charset: " + charset + " to String: " + decodedString);
    }
    return decodedString;
}

Example 8 with FunctionCallException

use of org.jaxen.FunctionCallException in project wso2-synapse by wso2.

the class DecryptFunction method decrypt.

/**
 * Decrypt a given cipher text
 *
 * @param encryptedText The encrypted bytes to be decrypted
 * @return The plain text string
 * @throws FunctionCallException On error during decryption
 */
private String decrypt(byte[] encryptedText, String keyStorePath, String keyStorePassword, String alias, String keyStoreType, String algorithm) throws FunctionCallException {
    if (encryptedText == null) {
        throw new FunctionCallException("Encrypted text can't be null.");
    }
    try {
        Cipher cipher = getCipherInstance(algorithm);
        KeyStore keyStore = KeyStoreManager.getKeyStore(keyStorePath, keyStorePassword, keyStoreType);
        Certificate certificate = KeyStoreManager.getCertificateFromStore(keyStore, alias);
        if (log.isDebugEnabled()) {
            log.debug("Certificate used for encrypting : " + certificate);
        }
        cipher.init(Cipher.DECRYPT_MODE, KeyStoreManager.getPrivateKeyFromKeyStore(keyStore, keyStorePassword, alias));
        byte[] decodedText = Base64.getDecoder().decode(encryptedText);
        byte[] cipherText = cipher.doFinal(decodedText);
        if (log.isDebugEnabled()) {
            log.debug(String.format("Successfully encrypted data using the algorithm '%s'", algorithm));
        }
        return new String(cipherText);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | KeyStoreException | InvalidKeyException | IllegalBlockSizeException | BadPaddingException | UnrecoverableKeyException e) {
        throw new FunctionCallException("An error occurred while encrypting data.", e);
    }
}

Example 9 with FunctionCallException

use of org.jaxen.FunctionCallException in project wso2-synapse by wso2.

the class Base64EncodeFunction method encode.

private Object encode(boolean debugOn, String encoding, String value) throws FunctionCallException {
    if (value == null || "".equals(value)) {
        if (debugOn) {
            log.debug("Non emprty string value should be provided for encoding");
        }
        return NULL_STRING;
    }
    byte[] encodedValue;
    try {
        encodedValue = new Base64().encode(value.getBytes(encoding));
    } catch (UnsupportedEncodingException e) {
        String msg = "Unsupported Encoding";
        log.error(msg, e);
        throw new FunctionCallException(msg, e);
    }
    String encodedString;
    try {
        encodedString = new String(encodedValue, encoding).trim();
        encodedString = encodedString.replace("\r\n", "");
    } catch (UnsupportedEncodingException e) {
        String msg = "Unsupported Encoding";
        log.error(msg, e);
        throw new FunctionCallException(msg, e);
    }
    if (debugOn) {
        log.debug("Converted string: " + value + " with encoding: " + encoding + " to base64 encoded value: " + encodedString);
    }
    return encodedString;
}