blade-tool/blade-core-datascope/src/main/java/org/springblade/core/datascope/interceptor/DataScopeInterceptor.java

139 lines
5.0 KiB
Java

/**
* Copyright (c) 2018-2028, Chill Zhuang 庄骞 (smallchill@163.com).
* <p>
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* <p>
* http://www.gnu.org/licenses/lgpl.html
* <p>
* 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 org.springblade.core.datascope.interceptor;
import com.baomidou.mybatisplus.core.toolkit.PluginUtils;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlCommandType;
import org.apache.ibatis.mapping.StatementType;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.springblade.core.datascope.annotation.DataAuth;
import org.springblade.core.datascope.handler.DataScopeHandler;
import org.springblade.core.datascope.model.DataScopeModel;
import org.springblade.core.datascope.props.DataScopeProperties;
import org.springblade.core.mp.intercept.QueryInterceptor;
import org.springblade.core.secure.BladeUser;
import org.springblade.core.secure.utils.SecureUtil;
import org.springblade.core.tool.utils.ClassUtil;
import org.springblade.core.tool.utils.SpringUtil;
import org.springblade.core.tool.utils.StringUtil;
import java.lang.reflect.Method;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* mybatis 数据权限拦截器
*
* @author L.cm, Chill
*/
@Slf4j
@RequiredArgsConstructor
@SuppressWarnings({"rawtypes"})
public class DataScopeInterceptor implements QueryInterceptor {
private final ConcurrentMap<String, DataAuth> dataAuthMap = new ConcurrentHashMap<>(8);
private final DataScopeHandler dataScopeHandler;
private final DataScopeProperties dataScopeProperties;
@Override
public void intercept(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) {
//未启用则放行
if (!dataScopeProperties.getEnabled()) {
return;
}
//未取到用户则放行
BladeUser bladeUser = SecureUtil.getUser();
if (bladeUser == null) {
return;
}
if (SqlCommandType.SELECT != ms.getSqlCommandType() || StatementType.CALLABLE == ms.getStatementType()) {
return;
}
String originalSql = boundSql.getSql();
//查找注解中包含DataAuth类型的参数
DataAuth dataAuth = findDataAuthAnnotation(ms);
//注解为空并且数据权限方法名未匹配到,则放行
String mapperId = ms.getId();
String className = mapperId.substring(0, mapperId.lastIndexOf(StringPool.DOT));
String mapperName = ClassUtil.getShortName(className);
String methodName = mapperId.substring(mapperId.lastIndexOf(StringPool.DOT) + 1);
boolean mapperSkip = dataScopeProperties.getMapperKey().stream().noneMatch(methodName::contains)
|| dataScopeProperties.getMapperExclude().stream().anyMatch(mapperName::contains);
if (dataAuth == null && mapperSkip) {
return;
}
//创建数据权限模型
DataScopeModel dataScope = new DataScopeModel();
//若注解不为空,则配置注解项
if (dataAuth != null) {
dataScope.setResourceCode(dataAuth.code());
dataScope.setScopeColumn(dataAuth.column());
dataScope.setScopeType(dataAuth.type().getType());
dataScope.setScopeField(dataAuth.field());
dataScope.setScopeValue(dataAuth.value());
}
//获取数据权限规则对应的筛选Sql
String sqlCondition = dataScopeHandler.sqlCondition(mapperId, dataScope, bladeUser, originalSql);
if (!StringUtil.isBlank(sqlCondition)) {
PluginUtils.MPBoundSql mpBoundSql = PluginUtils.mpBoundSql(boundSql);
mpBoundSql.sql(sqlCondition);
}
}
/**
* 获取数据权限注解信息
*
* @param mappedStatement mappedStatement
* @return DataAuth
*/
private DataAuth findDataAuthAnnotation(MappedStatement mappedStatement) {
String id = mappedStatement.getId();
return dataAuthMap.computeIfAbsent(id, (key) -> {
String className = key.substring(0, key.lastIndexOf(StringPool.DOT));
String mapperBean = StringUtil.firstCharToLower(ClassUtil.getShortName(className));
Object mapper = SpringUtil.getBean(mapperBean);
String methodName = key.substring(key.lastIndexOf(StringPool.DOT) + 1);
Class<?>[] interfaces = ClassUtil.getAllInterfaces(mapper);
for (Class<?> mapperInterface : interfaces) {
for (Method method : mapperInterface.getDeclaredMethods()) {
if (methodName.equals(method.getName()) && method.isAnnotationPresent(DataAuth.class)) {
return method.getAnnotation(DataAuth.class);
}
}
}
return null;
});
}
}