[ISSUE #9044]Supplemental checks that are missing from the UpdateSubGroup&UpdateSubGroupList operation

broker/src/main/java/org/apache/rocketmq/broker/processor/AdminBrokerProcessor.java

@@ -1615,6 +1615,9 @@ private RemotingCommand updateAndCreateSubscriptionGroup(ChannelHandlerContext c
 
         SubscriptionGroupConfig config = RemotingSerializable.decode(request.getBody(), SubscriptionGroupConfig.class);
         if (config != null) {
+            if (!updateSubGroupPreCheck(config, response)) {
+                return response;
+            }
             this.brokerController.getSubscriptionGroupManager().updateSubscriptionGroupConfig(config);
         }
 
@@ -1638,15 +1641,18 @@ private RemotingCommand updateAndCreateSubscriptionGroupList(ChannelHandlerConte
         final List<SubscriptionGroupConfig> groupConfigList = subscriptionGroupList.getGroupConfigList();
 
         final StringBuilder builder = new StringBuilder();
+        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
         for (SubscriptionGroupConfig config : groupConfigList) {
+            if (!updateSubGroupPreCheck(config, response)) {
+                return response;
+            }
             builder.append(config.getGroupName()).append(";");
         }
         final String groupNames = builder.toString();
         LOGGER.info("AdminBrokerProcessor#updateAndCreateSubscriptionGroupList: groupNames: {}, called by {}",
             groupNames,
             RemotingHelper.parseChannelRemoteAddr(ctx.channel()));
 
-        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
         try {
             this.brokerController.getSubscriptionGroupManager().updateSubscriptionGroupConfigList(groupConfigList);
             response.setCode(ResponseCode.SUCCESS);
@@ -1665,6 +1671,15 @@ private RemotingCommand updateAndCreateSubscriptionGroupList(ChannelHandlerConte
         return response;
     }
 
+    private boolean updateSubGroupPreCheck(SubscriptionGroupConfig config,RemotingCommand resp) {
+        if (StringUtils.isBlank(config.getGroupName())) {
+            resp.setCode(ResponseCode.ILLEGAL_ARGUMENT);
+            resp.setRemark("The subscription group name cannot be empty");
+            return false;
+        }
+        return true;
+    }
+
     private void initConsumerOffset(String clientHost, String groupName, int mode, TopicConfig topicConfig)
         throws ConsumeQueueException {
         String topic = topicConfig.getTopicName();

broker/src/test/java/org/apache/rocketmq/broker/processor/AdminBrokerProcessorTest.java

@@ -73,6 +73,7 @@
 import org.apache.rocketmq.remoting.protocol.body.QueryCorrectionOffsetBody;
 import org.apache.rocketmq.remoting.protocol.body.UnlockBatchRequestBody;
 import org.apache.rocketmq.remoting.protocol.body.UserInfo;
+import org.apache.rocketmq.remoting.protocol.body.SubscriptionGroupList;
 import org.apache.rocketmq.remoting.protocol.header.CreateAclRequestHeader;
 import org.apache.rocketmq.remoting.protocol.header.CreateTopicRequestHeader;
 import org.apache.rocketmq.remoting.protocol.header.CreateUserRequestHeader;
@@ -633,6 +634,30 @@ public void testUpdateAndCreateSubscriptionGroup() throws RemotingCommandExcepti
         assertThat(response.getCode()).isEqualTo(ResponseCode.SUCCESS);
     }
 
+    @Test
+    public void testEmptyNameWhenUpdateSubGroup() throws RemotingCommandException {
+        RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.UPDATE_AND_CREATE_SUBSCRIPTIONGROUP, null);
+        SubscriptionGroupConfig subscriptionGroupConfig = new SubscriptionGroupConfig();
+        subscriptionGroupConfig.setGroupName("");
+        request.setBody(JSON.toJSON(subscriptionGroupConfig).toString().getBytes());
+        RemotingCommand response = adminBrokerProcessor.processRequest(handlerContext, request);
+        assertThat(response.getCode()).isEqualTo(ResponseCode.ILLEGAL_ARGUMENT);
+    }
+
+    @Test
+    public void testEmptyNameWhenUpdateSubGroupList() throws RemotingCommandException {
+        RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.UPDATE_AND_CREATE_SUBSCRIPTIONGROUP_LIST, null);
+        SubscriptionGroupList groupList = new SubscriptionGroupList();
+        List<SubscriptionGroupConfig> list = new ArrayList<>();
+        SubscriptionGroupConfig subscriptionGroupConfig = new SubscriptionGroupConfig();
+        subscriptionGroupConfig.setGroupName("");
+        list.add(subscriptionGroupConfig);
+        groupList.setGroupConfigList(list);
+        request.setBody(JSON.toJSON(groupList).toString().getBytes());
+        RemotingCommand response = adminBrokerProcessor.processRequest(handlerContext, request);
+        assertThat(response.getCode()).isEqualTo(ResponseCode.ILLEGAL_ARGUMENT);
+    }
+
     @Test
     public void testGetAllSubscriptionGroupInRocksdb() throws Exception {
         initRocksdbSubscriptionManager();

remoting/src/main/java/org/apache/rocketmq/remoting/protocol/ResponseCode.java

@@ -96,6 +96,8 @@ public class ResponseCode extends RemotingSysResponseCode {
 
     public static final int ILLEGAL_OPERATION = 604;
 
+    public static final int ILLEGAL_ARGUMENT = 605;
+
     public static final int RPC_UNKNOWN = -1000;
     public static final int RPC_ADDR_IS_NULL = -1002;
     public static final int RPC_SEND_TO_CHANNEL_FAILED = -1004;