net.tirasa.connid.bundles.kafka.serialization.GuardedStringSerializer Maven / Gradle / Ivy

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/**
 * Copyright (C) 2024 ConnId ([email protected])
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.tirasa.connid.bundles.kafka.serialization;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.Base64;
import org.identityconnectors.common.logging.Log;
import org.identityconnectors.common.security.EncryptorFactory;
import org.identityconnectors.common.security.GuardedString;
import org.identityconnectors.common.security.SecurityUtil;

public class GuardedStringSerializer extends JsonSerializer {

    private static final Log LOG = Log.getLog(GuardedStringDeserializer.class);

    private static final String READONLY = "readOnly";

    private static final String DISPOSED = "disposed";

    private static final String ENCRYPTED_BYTES = "encryptedBytes";

    private static final String BASE64_SHA1_HASH = "base64SHA1Hash";

    private static final String LOG_ERROR_MESSAGE = "Could not get field value";

    @Override
    public void serialize(final GuardedString source, final JsonGenerator jgen, final SerializerProvider sp)
            throws IOException {

        jgen.writeStartObject();

        boolean readOnly = false;
        try {
            Field field = GuardedString.class.getDeclaredField(READONLY);
            field.setAccessible(true);
            readOnly = field.getBoolean(source);
        } catch (Exception e) {
            LOG.error(LOG_ERROR_MESSAGE, e);
        }
        jgen.writeBooleanField(READONLY, readOnly);

        boolean disposed = false;
        try {
            Field field = GuardedString.class.getDeclaredField(DISPOSED);
            field.setAccessible(true);
            disposed = field.getBoolean(source);
        } catch (Exception e) {
            LOG.error(LOG_ERROR_MESSAGE, e);
        }
        jgen.writeBooleanField(DISPOSED, disposed);

        byte[] encryptedBytes =
                EncryptorFactory.getInstance().getDefaultEncryptor().encrypt(SecurityUtil.decrypt(source).getBytes());
        jgen.writeStringField(ENCRYPTED_BYTES, Base64.getEncoder().encodeToString(encryptedBytes));

        String base64SHA1Hash = null;
        try {
            Field field = GuardedString.class.getDeclaredField(BASE64_SHA1_HASH);
            field.setAccessible(true);
            base64SHA1Hash = field.get(source).toString();
        } catch (Exception e) {
            LOG.error(LOG_ERROR_MESSAGE, e);
        }
        if (base64SHA1Hash != null) {
            jgen.writeStringField(BASE64_SHA1_HASH, base64SHA1Hash);
        }

        jgen.writeEndObject();
    }
}