Micronaut 解密属性值

Question

我想从 搬家spring 至 micronaut .一些属性值为 encrypted ，我们目前正在使用 spring-boot-jasypt ，如下所述，以帮助 decrypt注入(inject) 时的属性值spring 应用。

但是，我还没有找到在 中添加属性加密器的方法。 micronaut 框架让我做同样的事情。有没有人知道如何在 中做到这一点？ micronaut ?

https://www.baeldung.com/spring-boot-jasypt

Answer 1

以下方法对我有用。创建 @Context注释 Singleton这将在所有其他 bean 之前创建。创建时Environment已初始化并加载所有配置属性。接下来查找所有以定义加密值的特殊前缀开头的属性。使用解密值创建新的属性源并将其放入 Environment如新 PropertySource .
代码:

@Context
@Singleton
@Requires(property = "JASYPT_ENCRYPTOR_PASSWORD")
@Slf4j
public class JasyptConfigurationPropertiesDecryptor implements BeanInitializedEventListener<Environment>  {
    private static final String PREFIX = "ENC(";

    public JasyptConfigurationPropertiesDecryptor(DefaultEnvironment env, @Value("${JASYPT_ENCRYPTOR_PASSWORD}") String encPassword) {
        log.info("JasyptBootstrapDecryptor started");
        processConfigurationProperties(env, encPassword);
    }

    public void processConfigurationProperties(DefaultEnvironment env, String encPassword) {
        StandardPBEStringEncryptor encryptor = encryptor(encPassword);
        Map<String, Object> all = env.getAllProperties(StringConvention.RAW, MapFormat.MapTransformation.FLAT);
        Map<String, Object> decrypted = all.entrySet().stream()
                                           .filter(entry -> entry.getValue().toString().startsWith(PREFIX))
                                           .collect(collector(encryptor));

        env.addPropertySource(MapPropertySource.of("decrypted", decrypted));
    }

    private StandardPBEStringEncryptor encryptor(String encPassword) {
        StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();
        encryptor.setPassword(encPassword);
        encryptor.setStringOutputType("base64");
        encryptor.setAlgorithm("PBEWITHHMACSHA512ANDAES_256");
        encryptor.setIvGenerator(new RandomIvGenerator());
        return encryptor;
    }

    @Nonnull
    private Collector<Map.Entry<String, Object>, ?, Map<String, Object>> collector(StandardPBEStringEncryptor encryptor) {
        return Collectors.toMap(Map.Entry::getKey, entry -> decrypt(entry, encryptor));
    }

    private String decrypt(Map.Entry<String, Object> entry, StandardPBEStringEncryptor encryptor) {
        log.info("Decrypt \"{}\" configuration property", entry.getKey());
        String encrypted = entry.getValue().toString().substring(PREFIX.length(), entry.getValue().toString().length() - 1);
        return encryptor.decrypt(encrypted);
    }

    @Override
    public Environment onInitialized(BeanInitializingEvent<Environment> event) {
        return event.getBean();
    }


}