WallFilter support OracleAlterIndexStatement. issue #1923

src/main/java/com/alibaba/druid/wall/spi/WallVisitorUtils.java

@@ -63,6 +63,7 @@ import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowGrantsStatemen
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatement;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlUpdateStatement;
 import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
+import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleAlterIndexStatement;
 import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleMultiInsertStatement;
 import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGShowStatement;
 import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerExecStatement;
@@ -2502,7 +2503,7 @@ public class WallVisitorUtils {
             allow = config.isCreateTableAllow();
             denyMessage = "create table not allow";
             errorCode = ErrorCode.CREATE_TABLE_NOT_ALLOW;
-        } else if (x instanceof SQLAlterTableStatement) {
+        } else if (x instanceof SQLAlterTableStatement || x instanceof OracleAlterIndexStatement) {
             allow = config.isAlterTableAllow();
             denyMessage = "alter table not allow";
             errorCode = ErrorCode.ALTER_TABLE_NOT_ALLOW;

src/test/java/com/alibaba/druid/bvt/filter/wall/WallAlterTest_0.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * 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.alibaba.druid.bvt.filter.wall;
+
+import com.alibaba.druid.wall.WallConfig;
+import com.alibaba.druid.wall.WallUtils;
+import junit.framework.TestCase;
+import org.junit.Assert;
+
+public class WallAlterTest_0 extends TestCase {
+    private String sql = "alter index idx_t1 rebuild";
+    
+    private WallConfig config = new WallConfig();
+    
+    protected void setUp() throws Exception {
+        config.setUpdateAllow(true);
+    }
+    
+    public void testORACLE() throws Exception {
+        
+        assertTrue(WallUtils.isValidateOracle(sql, config));
+    }
+}