Service.java.md

package com.fedoubt.services;

import com.fedoubt.common.message.CustomHttpStatus;
import com.fedoubt.dtos.CryptoDto;
import com.fedoubt.ex.CustomException;
import com.fedoubt.pojos.Crypto;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

import java.util.*;
import java.util.stream.Collectors;

@Slf4j
@Service
public class CryptoService {
    private final int ITERATIONS = 10000;
    private final int KEY_LENGTH = 256;

    public void checkdata(CryptoDto cryptoDto ,boolean isDecrypt){
        log.info("dto:{}",cryptoDto);

        if (cryptoDto == null || StringUtils.isEmpty(cryptoDto.getItemname())
                || StringUtils.isEmpty(cryptoDto.getUsername())
                || StringUtils.isEmpty(cryptoDto.getPassword())) {
            // 可以直接丟 ，GlobalExceptionHandler 統一返回
            throw new CustomException(CustomHttpStatus.INVALID_REQUEST_DATA);
        }
        List<String> dataList = Optional.ofNullable(cryptoDto.getDataList()).orElse(Collections.emptyList());

        for (String data : dataList){
            if(data.length()< 4){
                throw new CustomException(CustomHttpStatus.DATA_TOO_SHORT);
            }
            if(data.length() >= 20){
                throw new CustomException(CustomHttpStatus.DATA_TOO_LONG);
            }
        }
    }

    public String encrypt(CryptoDto cryptoDto) {
        checkdata(cryptoDto ,false);
        Crypto crypto = new Crypto();
        if(cryptoDto.getItemname().contains(";")){
            throw new CustomException(CustomHttpStatus.ENCRYPT_COLON_CONFLICT);
        }
    }

}