package com.dl.framework.interceptor;
|
|
import com.baomidou.mybatisplus.core.plugins.InterceptorIgnoreHelper;
|
import com.baomidou.mybatisplus.core.toolkit.PluginUtils;
|
import com.baomidou.mybatisplus.extension.parser.JsqlParserSupport;
|
import com.baomidou.mybatisplus.extension.plugins.inner.InnerInterceptor;
|
import com.dl.framework.handler.PlusDataPermissionHandler;
|
import net.sf.jsqlparser.expression.Expression;
|
import net.sf.jsqlparser.statement.delete.Delete;
|
import net.sf.jsqlparser.statement.select.PlainSelect;
|
import net.sf.jsqlparser.statement.select.Select;
|
import net.sf.jsqlparser.statement.select.SelectBody;
|
import net.sf.jsqlparser.statement.select.SetOperationList;
|
import net.sf.jsqlparser.statement.update.Update;
|
import org.apache.ibatis.executor.Executor;
|
import org.apache.ibatis.executor.statement.StatementHandler;
|
import org.apache.ibatis.mapping.BoundSql;
|
import org.apache.ibatis.mapping.MappedStatement;
|
import org.apache.ibatis.mapping.SqlCommandType;
|
import org.apache.ibatis.session.ResultHandler;
|
import org.apache.ibatis.session.RowBounds;
|
|
import java.sql.Connection;
|
import java.sql.SQLException;
|
import java.util.List;
|
|
/**
|
* 数据权限拦截器
|
*
|
* @author Lion Li
|
* @version 3.5.0
|
*/
|
public class PlusDataPermissionInterceptor extends JsqlParserSupport implements InnerInterceptor {
|
|
private final PlusDataPermissionHandler dataPermissionHandler = new PlusDataPermissionHandler();
|
|
@Override
|
public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) throws SQLException {
|
// 检查忽略注解
|
if (InterceptorIgnoreHelper.willIgnoreDataPermission(ms.getId())) {
|
return;
|
}
|
// 检查是否无效 无数据权限注解
|
if (dataPermissionHandler.isInvalid(ms.getId())) {
|
return;
|
}
|
// 解析 sql 分配对应方法
|
PluginUtils.MPBoundSql mpBs = PluginUtils.mpBoundSql(boundSql);
|
mpBs.sql(parserSingle(mpBs.sql(), ms.getId()));
|
}
|
|
@Override
|
public void beforePrepare(StatementHandler sh, Connection connection, Integer transactionTimeout) {
|
PluginUtils.MPStatementHandler mpSh = PluginUtils.mpStatementHandler(sh);
|
MappedStatement ms = mpSh.mappedStatement();
|
SqlCommandType sct = ms.getSqlCommandType();
|
if (sct == SqlCommandType.UPDATE || sct == SqlCommandType.DELETE) {
|
if (InterceptorIgnoreHelper.willIgnoreDataPermission(ms.getId())) {
|
return;
|
}
|
PluginUtils.MPBoundSql mpBs = mpSh.mPBoundSql();
|
mpBs.sql(parserMulti(mpBs.sql(), ms.getId()));
|
}
|
}
|
|
@Override
|
protected void processSelect(Select select, int index, String sql, Object obj) {
|
SelectBody selectBody = select.getSelectBody();
|
if (selectBody instanceof PlainSelect) {
|
this.setWhere((PlainSelect) selectBody, (String) obj);
|
} else if (selectBody instanceof SetOperationList) {
|
SetOperationList setOperationList = (SetOperationList) selectBody;
|
List<SelectBody> selectBodyList = setOperationList.getSelects();
|
selectBodyList.forEach(s -> this.setWhere((PlainSelect) s, (String) obj));
|
}
|
}
|
|
@Override
|
protected void processUpdate(Update update, int index, String sql, Object obj) {
|
Expression sqlSegment = dataPermissionHandler.getSqlSegment(update.getWhere(), (String) obj, false);
|
if (null != sqlSegment) {
|
update.setWhere(sqlSegment);
|
}
|
}
|
|
@Override
|
protected void processDelete(Delete delete, int index, String sql, Object obj) {
|
Expression sqlSegment = dataPermissionHandler.getSqlSegment(delete.getWhere(), (String) obj, false);
|
if (null != sqlSegment) {
|
delete.setWhere(sqlSegment);
|
}
|
}
|
|
/**
|
* 设置 where 条件
|
*
|
* @param plainSelect 查询对象
|
* @param mappedStatementId 执行方法id
|
*/
|
protected void setWhere(PlainSelect plainSelect, String mappedStatementId) {
|
Expression sqlSegment = dataPermissionHandler.getSqlSegment(plainSelect.getWhere(), mappedStatementId, true);
|
if (null != sqlSegment) {
|
plainSelect.setWhere(sqlSegment);
|
}
|
}
|
|
}
|