net.guerlab.cloud.auth.factory.AbstractMd5TokenFactory Maven / Gradle / Ivy
/*
* Copyright 2018-2024 guerlab.net and other contributors.
*
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.gnu.org/licenses/lgpl-3.0.html
*
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.guerlab.cloud.auth.factory;
import java.util.Base64;
import java.util.Objects;
import jakarta.annotation.Nullable;
import org.apache.commons.codec.digest.DigestUtils;
import net.guerlab.cloud.auth.properties.Md5TokenFactoryProperties;
/**
* 抽象md5 token工厂.
*
* @param 数据实体类型
* @param 配置类型
* @author guer
*/
public abstract class AbstractMd5TokenFactory
extends AbstractStringValueTokenFactory {
private static final String TOKEN_CONNECTORS = ".";
protected AbstractMd5TokenFactory(P properties) {
super(properties);
}
@Override
protected String buildToken(String dataString, String key, long expire) {
String sign = DigestUtils.md5Hex(dataString + TOKEN_CONNECTORS + key);
return Base64.getEncoder().encodeToString(dataString.getBytes()) + TOKEN_CONNECTORS + sign;
}
@Nullable
@Override
protected String parseDataString(String token, String key) {
int index = token.lastIndexOf(TOKEN_CONNECTORS);
if (index < 0) {
return null;
}
String dataString = new String(Base64.getDecoder().decode(token.substring(0, index)));
String tokenSign = token.substring(index + 1);
String sign = DigestUtils.md5Hex(dataString + TOKEN_CONNECTORS + key);
if (!Objects.equals(sign, tokenSign)) {
return null;
}
return dataString;
}
}