001/**
002 * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 * <p>
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * <p>
008 * http://www.apache.org/licenses/LICENSE-2.0
009 * <p>
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package com.mybatisflex.core.mask;
017
018import java.util.HashMap;
019import java.util.Map;
020
021/**
022 * 数据脱敏工厂类
023 */
024public class MaskManager {
025
026
027    /**
028     * 脱敏处理器，type : processer
029     */
030    private static Map<String, MaskProcesser> processerMap = new HashMap<>();
031
032
033    static {
034        registerMaskProcesser(Masks.MOBILE, Masks.MOBILE_PROCESSER);
035        registerMaskProcesser(Masks.FIXED_PHONE, Masks.FIXED_PHONE_PROCESSER);
036        registerMaskProcesser(Masks.ID_CARD_NUMBER, Masks.ID_CARD_NUMBER_PROCESSER);
037        registerMaskProcesser(Masks.CHINESE_NAME, Masks.CHINESE_NAME_PROCESSER);
038        registerMaskProcesser(Masks.ADDRESS, Masks.ADDRESS_PROCESSER);
039        registerMaskProcesser(Masks.EMAIL, Masks.EMAIL_PROCESSER);
040        registerMaskProcesser(Masks.PASSWORD, Masks.PASSWORD_PROCESSER);
041        registerMaskProcesser(Masks.CAR_LICENSE, Masks.CAR_LICENSE_PROCESSER);
042        registerMaskProcesser(Masks.BANK_CARD_NUMBER, Masks.BANK_CARD_PROCESSER);
043    }
044
045
046    /**
047     * 注册处理器，用户可以注册新的脱敏处理器 或者 覆盖内置的处理器
048     *
049     * @param type      处理器类型
050     * @param processer 脱敏处理器
051     */
052    public static void registerMaskProcesser(String type, MaskProcesser processer) {
053        processerMap.put(type, processer);
054    }
055
056
057    private static ThreadLocal<Boolean> skipFlags = new ThreadLocal<>();
058
059    /**
060     * 跳过脱敏处理
061     */
062    public static void skipMask() {
063        skipFlags.set(Boolean.TRUE);
064    }
065
066
067    /**
068     * 恢复脱敏处理
069     */
070    public static void restoreMask() {
071        skipFlags.remove();
072    }
073
074
075    public static Object mask(String type, Object data) {
076        Boolean skipMask = skipFlags.get();
077        if (skipMask != null && skipMask) {
078            return data;
079        }
080
081        MaskProcesser maskProcesser = processerMap.get(type);
082        if (maskProcesser == null) {
083            throw new IllegalStateException("Can not get mask processer for by type: " + type);
084        }
085
086        return maskProcesser.mask(data);
087    }
088
089}