|
@@ -0,0 +1,400 @@
|
|
|
+package cn.iocoder.yudao.framework.datascope.core.interceptor;
|
|
|
+
|
|
|
+import com.baomidou.mybatisplus.core.plugins.InterceptorIgnoreHelper;
|
|
|
+import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
|
|
|
+import com.baomidou.mybatisplus.core.toolkit.PluginUtils;
|
|
|
+import com.baomidou.mybatisplus.core.toolkit.StringPool;
|
|
|
+import com.baomidou.mybatisplus.extension.parser.JsqlParserSupport;
|
|
|
+import com.baomidou.mybatisplus.extension.plugins.inner.InnerInterceptor;
|
|
|
+import net.sf.jsqlparser.expression.*;
|
|
|
+import net.sf.jsqlparser.expression.operators.conditional.AndExpression;
|
|
|
+import net.sf.jsqlparser.expression.operators.conditional.OrExpression;
|
|
|
+import net.sf.jsqlparser.expression.operators.relational.*;
|
|
|
+import net.sf.jsqlparser.schema.Column;
|
|
|
+import net.sf.jsqlparser.schema.Table;
|
|
|
+import net.sf.jsqlparser.statement.delete.Delete;
|
|
|
+import net.sf.jsqlparser.statement.select.*;
|
|
|
+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.Collection;
|
|
|
+import java.util.Deque;
|
|
|
+import java.util.LinkedList;
|
|
|
+import java.util.List;
|
|
|
+
|
|
|
+public class DataPermissionInterceptor extends JsqlParserSupport implements InnerInterceptor {
|
|
|
+
|
|
|
+// private TenantLineHandler tenantLineHandler;
|
|
|
+
|
|
|
+ @Override
|
|
|
+ public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) throws SQLException {
|
|
|
+ if (InterceptorIgnoreHelper.willIgnoreTenantLine(ms.getId())) return;
|
|
|
+ PluginUtils.MPBoundSql mpBs = PluginUtils.mpBoundSql(boundSql);
|
|
|
+ mpBs.sql(parserSingle(mpBs.sql(), null));
|
|
|
+ }
|
|
|
+
|
|
|
+ @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) { // 无需处理 Insert 语句
|
|
|
+ if (InterceptorIgnoreHelper.willIgnoreTenantLine(ms.getId())) return;
|
|
|
+ PluginUtils.MPBoundSql mpBs = mpSh.mPBoundSql();
|
|
|
+ mpBs.sql(parserMulti(mpBs.sql(), null));
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ @Override
|
|
|
+ protected void processSelect(Select select, int index, String sql, Object obj) {
|
|
|
+ processSelectBody(select.getSelectBody());
|
|
|
+ List<WithItem> withItemsList = select.getWithItemsList();
|
|
|
+ if (!CollectionUtils.isEmpty(withItemsList)) {
|
|
|
+ withItemsList.forEach(this::processSelectBody);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected void processSelectBody(SelectBody selectBody) {
|
|
|
+ if (selectBody == null) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (selectBody instanceof PlainSelect) {
|
|
|
+ processPlainSelect((PlainSelect) selectBody);
|
|
|
+ } else if (selectBody instanceof WithItem) {
|
|
|
+ WithItem withItem = (WithItem) selectBody;
|
|
|
+ processSelectBody(withItem.getSubSelect().getSelectBody());
|
|
|
+ } else {
|
|
|
+ SetOperationList operationList = (SetOperationList) selectBody;
|
|
|
+ List<SelectBody> selectBodys = operationList.getSelects();
|
|
|
+ if (CollectionUtils.isNotEmpty(selectBodys)) {
|
|
|
+ selectBodys.forEach(this::processSelectBody);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * update 语句处理
|
|
|
+ */
|
|
|
+ @Override
|
|
|
+ protected void processUpdate(Update update, int index, String sql, Object obj) {
|
|
|
+ final Table table = update.getTable();
|
|
|
+ if (ignoreTable(table.getName())) {
|
|
|
+ // 过滤退出执行
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ update.setWhere(this.andExpression(table, update.getWhere()));
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * delete 语句处理
|
|
|
+ */
|
|
|
+ @Override
|
|
|
+ protected void processDelete(Delete delete, int index, String sql, Object obj) {
|
|
|
+ if (ignoreTable(delete.getTable().getName())) {
|
|
|
+ // 过滤退出执行
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ delete.setWhere(this.andExpression(delete.getTable(), delete.getWhere()));
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * delete update 语句 where 处理
|
|
|
+ */
|
|
|
+ protected BinaryExpression andExpression(Table table, Expression where) {
|
|
|
+ //获得where条件表达式
|
|
|
+ EqualsTo equalsTo = new EqualsTo();
|
|
|
+ equalsTo.setLeftExpression(this.getAliasColumn(table));
|
|
|
+ equalsTo.setRightExpression(getTenantId());
|
|
|
+ if (null != where) {
|
|
|
+ if (where instanceof OrExpression) {
|
|
|
+ return new AndExpression(equalsTo, new Parenthesis(where));
|
|
|
+ } else {
|
|
|
+ return new AndExpression(equalsTo, where);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return equalsTo;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 追加 SelectItem
|
|
|
+ *
|
|
|
+ * @param selectItems SelectItem
|
|
|
+ */
|
|
|
+ protected void appendSelectItem(List<SelectItem> selectItems) {
|
|
|
+ if (CollectionUtils.isEmpty(selectItems)) return;
|
|
|
+ if (selectItems.size() == 1) {
|
|
|
+ SelectItem item = selectItems.get(0);
|
|
|
+ if (item instanceof AllColumns || item instanceof AllTableColumns) return;
|
|
|
+ }
|
|
|
+ selectItems.add(new SelectExpressionItem(new Column(getTenantIdColumn())));
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理 PlainSelect
|
|
|
+ */
|
|
|
+ protected void processPlainSelect(PlainSelect plainSelect) {
|
|
|
+ FromItem fromItem = plainSelect.getFromItem();
|
|
|
+ Expression where = plainSelect.getWhere();
|
|
|
+ processWhereSubSelect(where);
|
|
|
+ if (fromItem instanceof Table) {
|
|
|
+ Table fromTable = (Table) fromItem;
|
|
|
+ if (!ignoreTable(fromTable.getName())) {
|
|
|
+ //#1186 github
|
|
|
+ plainSelect.setWhere(builderExpression(where, fromTable));
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ processFromItem(fromItem);
|
|
|
+ }
|
|
|
+ //#3087 github
|
|
|
+ List<SelectItem> selectItems = plainSelect.getSelectItems();
|
|
|
+ if (CollectionUtils.isNotEmpty(selectItems)) {
|
|
|
+ selectItems.forEach(this::processSelectItem);
|
|
|
+ }
|
|
|
+ List<Join> joins = plainSelect.getJoins();
|
|
|
+ if (CollectionUtils.isNotEmpty(joins)) {
|
|
|
+ processJoins(joins);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理where条件内的子查询
|
|
|
+ * <p>
|
|
|
+ * 支持如下:
|
|
|
+ * 1. in
|
|
|
+ * 2. =
|
|
|
+ * 3. >
|
|
|
+ * 4. <
|
|
|
+ * 5. >=
|
|
|
+ * 6. <=
|
|
|
+ * 7. <>
|
|
|
+ * 8. EXISTS
|
|
|
+ * 9. NOT EXISTS
|
|
|
+ * <p>
|
|
|
+ * 前提条件:
|
|
|
+ * 1. 子查询必须放在小括号中
|
|
|
+ * 2. 子查询一般放在比较操作符的右边
|
|
|
+ *
|
|
|
+ * @param where where 条件
|
|
|
+ */
|
|
|
+ protected void processWhereSubSelect(Expression where) {
|
|
|
+ if (where == null) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (where instanceof FromItem) {
|
|
|
+ processFromItem((FromItem) where);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (where.toString().indexOf("SELECT") > 0) {
|
|
|
+ // 有子查询
|
|
|
+ if (where instanceof BinaryExpression) {
|
|
|
+ // 比较符号 , and , or , 等等
|
|
|
+ BinaryExpression expression = (BinaryExpression) where;
|
|
|
+ processWhereSubSelect(expression.getLeftExpression());
|
|
|
+ processWhereSubSelect(expression.getRightExpression());
|
|
|
+ } else if (where instanceof InExpression) {
|
|
|
+ // in
|
|
|
+ InExpression expression = (InExpression) where;
|
|
|
+ ItemsList itemsList = expression.getRightItemsList();
|
|
|
+ if (itemsList instanceof SubSelect) {
|
|
|
+ processSelectBody(((SubSelect) itemsList).getSelectBody());
|
|
|
+ }
|
|
|
+ } else if (where instanceof ExistsExpression) {
|
|
|
+ // exists
|
|
|
+ ExistsExpression expression = (ExistsExpression) where;
|
|
|
+ processWhereSubSelect(expression.getRightExpression());
|
|
|
+ } else if (where instanceof NotExpression) {
|
|
|
+ // not exists
|
|
|
+ NotExpression expression = (NotExpression) where;
|
|
|
+ processWhereSubSelect(expression.getExpression());
|
|
|
+ } else if (where instanceof Parenthesis) {
|
|
|
+ Parenthesis expression = (Parenthesis) where;
|
|
|
+ processWhereSubSelect(expression.getExpression());
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ protected void processSelectItem(SelectItem selectItem) {
|
|
|
+ if (selectItem instanceof SelectExpressionItem) {
|
|
|
+ SelectExpressionItem selectExpressionItem = (SelectExpressionItem) selectItem;
|
|
|
+ if (selectExpressionItem.getExpression() instanceof SubSelect) {
|
|
|
+ processSelectBody(((SubSelect) selectExpressionItem.getExpression()).getSelectBody());
|
|
|
+ } else if (selectExpressionItem.getExpression() instanceof Function) {
|
|
|
+ processFunction((Function) selectExpressionItem.getExpression());
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理函数
|
|
|
+ * <p>支持: 1. select fun(args..) 2. select fun1(fun2(args..),args..)<p>
|
|
|
+ * <p> fixed gitee pulls/141</p>
|
|
|
+ *
|
|
|
+ * @param function
|
|
|
+ */
|
|
|
+ protected void processFunction(Function function) {
|
|
|
+ ExpressionList parameters = function.getParameters();
|
|
|
+ if (parameters != null) {
|
|
|
+ parameters.getExpressions().forEach(expression -> {
|
|
|
+ if (expression instanceof SubSelect) {
|
|
|
+ processSelectBody(((SubSelect) expression).getSelectBody());
|
|
|
+ } else if (expression instanceof Function) {
|
|
|
+ processFunction((Function) expression);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理子查询等
|
|
|
+ */
|
|
|
+ protected void processFromItem(FromItem fromItem) {
|
|
|
+ if (fromItem instanceof SubJoin) {
|
|
|
+ SubJoin subJoin = (SubJoin) fromItem;
|
|
|
+ if (subJoin.getJoinList() != null) {
|
|
|
+ processJoins(subJoin.getJoinList());
|
|
|
+ }
|
|
|
+ if (subJoin.getLeft() != null) {
|
|
|
+ processFromItem(subJoin.getLeft());
|
|
|
+ }
|
|
|
+ } else if (fromItem instanceof SubSelect) {
|
|
|
+ SubSelect subSelect = (SubSelect) fromItem;
|
|
|
+ if (subSelect.getSelectBody() != null) {
|
|
|
+ processSelectBody(subSelect.getSelectBody());
|
|
|
+ }
|
|
|
+ } else if (fromItem instanceof ValuesList) {
|
|
|
+ logger.debug("Perform a subquery, if you do not give us feedback");
|
|
|
+ } else if (fromItem instanceof LateralSubSelect) {
|
|
|
+ LateralSubSelect lateralSubSelect = (LateralSubSelect) fromItem;
|
|
|
+ if (lateralSubSelect.getSubSelect() != null) {
|
|
|
+ SubSelect subSelect = lateralSubSelect.getSubSelect();
|
|
|
+ if (subSelect.getSelectBody() != null) {
|
|
|
+ processSelectBody(subSelect.getSelectBody());
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理 joins
|
|
|
+ *
|
|
|
+ * @param joins join 集合
|
|
|
+ */
|
|
|
+ private void processJoins(List<Join> joins) {
|
|
|
+ //对于 on 表达式写在最后的 join,需要记录下前面多个 on 的表名
|
|
|
+ Deque<Table> tables = new LinkedList<>();
|
|
|
+ for (Join join : joins) {
|
|
|
+ // 处理 on 表达式
|
|
|
+ FromItem fromItem = join.getRightItem();
|
|
|
+ if (fromItem instanceof Table) {
|
|
|
+ Table fromTable = (Table) fromItem;
|
|
|
+ // 获取 join 尾缀的 on 表达式列表
|
|
|
+ Collection<Expression> originOnExpressions = join.getOnExpressions();
|
|
|
+ // 正常 join on 表达式只有一个,立刻处理
|
|
|
+ if (originOnExpressions.size() == 1) {
|
|
|
+ processJoin(join);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ // 当前表是否忽略
|
|
|
+ boolean needIgnore = ignoreTable(fromTable.getName());
|
|
|
+ // 表名压栈,忽略的表压入 null,以便后续不处理
|
|
|
+ tables.push(needIgnore ? null : fromTable);
|
|
|
+ // 尾缀多个 on 表达式的时候统一处理
|
|
|
+ if (originOnExpressions.size() > 1) {
|
|
|
+ Collection<Expression> onExpressions = new LinkedList<>();
|
|
|
+ for (Expression originOnExpression : originOnExpressions) {
|
|
|
+ Table currentTable = tables.poll();
|
|
|
+ if (currentTable == null) {
|
|
|
+ onExpressions.add(originOnExpression);
|
|
|
+ } else {
|
|
|
+ onExpressions.add(builderExpression(originOnExpression, currentTable));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ join.setOnExpressions(onExpressions);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ // 处理右边连接的子表达式
|
|
|
+ processFromItem(fromItem);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理联接语句
|
|
|
+ */
|
|
|
+ protected void processJoin(Join join) {
|
|
|
+ if (join.getRightItem() instanceof Table) {
|
|
|
+ Table fromTable = (Table) join.getRightItem();
|
|
|
+ if (ignoreTable(fromTable.getName())) {
|
|
|
+ // 过滤退出执行
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ // 走到这里说明 on 表达式肯定只有一个
|
|
|
+ Collection<Expression> originOnExpressions = join.getOnExpressions();
|
|
|
+ List<Expression> onExpressions = new LinkedList<>();
|
|
|
+ onExpressions.add(builderExpression(originOnExpressions.iterator().next(), fromTable));
|
|
|
+ join.setOnExpressions(onExpressions);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 处理条件
|
|
|
+ */
|
|
|
+ protected Expression builderExpression(Expression currentExpression, Table table) {
|
|
|
+ EqualsTo equalsTo = new EqualsTo();
|
|
|
+ equalsTo.setLeftExpression(this.getAliasColumn(table));
|
|
|
+ equalsTo.setRightExpression(getTenantId());
|
|
|
+ if (currentExpression == null) {
|
|
|
+ return equalsTo;
|
|
|
+ }
|
|
|
+ if (currentExpression instanceof OrExpression) {
|
|
|
+ return new AndExpression(new Parenthesis(currentExpression), equalsTo);
|
|
|
+ } else {
|
|
|
+ return new AndExpression(currentExpression, equalsTo);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 租户字段别名设置
|
|
|
+ * <p>tenantId 或 tableAlias.tenantId</p>
|
|
|
+ *
|
|
|
+ * @param table 表对象
|
|
|
+ * @return 字段
|
|
|
+ */
|
|
|
+ protected Column getAliasColumn(Table table) {
|
|
|
+ StringBuilder column = new StringBuilder();
|
|
|
+ if (table.getAlias() != null) {
|
|
|
+ column.append(table.getAlias().getName()).append(StringPool.DOT);
|
|
|
+ }
|
|
|
+ column.append(getTenantIdColumn());
|
|
|
+ return new Column(column.toString());
|
|
|
+ }
|
|
|
+
|
|
|
+// @Override
|
|
|
+// public void setProperties(Properties properties) {
|
|
|
+// PropertyMapper.newInstance(properties).whenNotBlank("tenantLineHandler",
|
|
|
+// ClassUtils::newInstance, this::setTenantLineHandler);
|
|
|
+// }
|
|
|
+
|
|
|
+ // TODO 芋艿:未实现
|
|
|
+
|
|
|
+ private boolean ignoreTable(String tableName) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ private String getTenantIdColumn() {
|
|
|
+ return "dept_id";
|
|
|
+ }
|
|
|
+
|
|
|
+ private Expression getTenantId() {
|
|
|
+ return new LongValue(1L);
|
|
|
+ }
|
|
|
+
|
|
|
+}
|