github-advanced-security[bot] commented on code in PR #16121:
URL: 
https://github.com/apache/dolphinscheduler/pull/16121#discussion_r1629029719


##########
dolphinscheduler-extract/dolphinscheduler-extract-base/src/main/java/org/apache/dolphinscheduler/extract/base/client/NettyClientHandler.java:
##########
@@ -77,7 +78,7 @@
                     
.writeAndFlush(HeartBeatTransporter.getHeartBeatTransporter())
                     .addListener(ChannelFutureListener.CLOSE_ON_FAILURE);
             if (log.isDebugEnabled()) {
-                log.debug("Client send heart beat to: {}", 
ChannelUtils.getRemoteAddress(ctx.channel()));
+                log.debug("Client send heartbeat to: {}", 
ChannelUtils.getRemoteAddress(ctx.channel()));

Review Comment:
   ## Log Injection
   
   This log entry depends on a [user-provided value](1).
   
   [Show more 
details](https://github.com/apache/dolphinscheduler/security/code-scanning/4162)



##########
dolphinscheduler-extract/dolphinscheduler-extract-base/src/main/java/org/apache/dolphinscheduler/extract/base/server/JdkDynamicServerHandler.java:
##########
@@ -160,7 +161,11 @@
     @Override
     public void userEventTriggered(ChannelHandlerContext ctx, Object evt) 
throws Exception {
         if (evt instanceof IdleStateEvent) {
-            ctx.channel().close();
+            IdleStateEvent event = (IdleStateEvent) evt;
+            if (event.state() == IdleState.READER_IDLE) {
+                log.warn("Not receive heart beat from: {}, will close the 
channel", ChannelUtils.getRemoteAddress(ctx.channel()));

Review Comment:
   ## Log Injection
   
   This log entry depends on a [user-provided value](1).
   
   [Show more 
details](https://github.com/apache/dolphinscheduler/security/code-scanning/4163)



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