com.baomidou.dynamic.datasource.event.EncDataSourceInitEvent Maven / Gradle / Ivy

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/*
 * Copyright © 2018 organization baomidou
 *
 * 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 com.baomidou.dynamic.datasource.event;

import com.baomidou.dynamic.datasource.creator.DataSourceProperty;
import com.baomidou.dynamic.datasource.toolkit.CryptoUtils;
import com.baomidou.dynamic.datasource.toolkit.DsStrUtils;
import lombok.extern.slf4j.Slf4j;

import javax.sql.DataSource;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 多数据源默认解密事件
 *
 * @author TaoYu
 */
@Slf4j
public class EncDataSourceInitEvent implements DataSourceInitEvent {

    /**
     * 加密正则
     */
    private static final Pattern ENC_PATTERN = Pattern.compile("^ENC\\((.*)\\)$");

    @Override
    public void beforeCreate(DataSourceProperty dataSourceProperty) {
        String publicKey = dataSourceProperty.getPublicKey();
        if (DsStrUtils.hasText(publicKey)) {
            dataSourceProperty.setUrl(decrypt(publicKey, dataSourceProperty.getUrl()));
            dataSourceProperty.setUsername(decrypt(publicKey, dataSourceProperty.getUsername()));
            dataSourceProperty.setPassword(decrypt(publicKey, dataSourceProperty.getPassword()));
        }
    }

    @Override
    public void afterCreate(DataSource dataSource) {

    }

    /**
     * 字符串解密
     */
    private String decrypt(String publicKey, String cipherText) {
        if (DsStrUtils.hasText(cipherText)) {
            Matcher matcher = ENC_PATTERN.matcher(cipherText);
            if (matcher.find()) {
                try {
                    return CryptoUtils.decrypt(publicKey, matcher.group(1));
                } catch (Exception e) {
                    log.error("DynamicDataSourceProperties.decrypt error ", e);
                }
            }
        }
        return cipherText;
    }
}