public String decrypt(final RootXmlReadHandler root, final String encryptedPassword) {
if (StringUtils.isEmpty(encryptedPassword)) {
// empty string vs. null may have significance.
return encryptedPassword;
}
final Object helperObject = root.getHelperObject(ContentRootElementHandler.PRPT_SPEC_VERSION);
final boolean legacyFix;
if (helperObject instanceof Integer) {
final Integer version = (Integer) helperObject;
if (version == -1) {
logger.warn("Decrypting password skipped, as we are dealing with an older version. ");
return encryptedPassword;
}
legacyFix = (version.intValue() < ClassicEngineBoot.computeVersionId(5, 0, 0));
} else {
legacyFix = false;
}
final int separatorPos = encryptedPassword.indexOf(':');
if (separatorPos == -1) {
// assume legacy mode
logger.warn("Decrypting password skipped, as the password-text has no service indicator. ");
return encryptedPassword;
}
final String serviceName = encryptedPassword.substring(0, separatorPos);
final String payload = encryptedPassword.substring(separatorPos + 1);
final PasswordEncryptionServiceProvider provider = services.get(serviceName);
if (legacyFix
&& ObscurificatePasswordEncryptionServiceProvider.SERVICE_TAG.equals(serviceName)) {
return new Obscurificate48PasswordEncryptionServiceProvider().decrypt(payload);
}
if (provider != null) {
return provider.decrypt(payload);
}
logger.debug("Decrypting password skipped, as the service indicator is not recognized. ");
return encryptedPassword;
}