Exported WebSocket configuration variables

application/src/main/java/org/thingsboard/server/config/WebSocketConfiguration.java

@@ -17,6 +17,7 @@ package org.thingsboard.server.config;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.socket.WebSocketHandler;
@@ -40,11 +41,16 @@ public class WebSocketConfiguration implements WebSocketConfigurer {
 
     private final WebSocketHandler wsHandler;
 
+    @Value("${server.ws.max_text_message_buffer_size:32768}")
+    private int maxTextMessageBufferSize;
+    @Value("${server.ws.max_binary_message_buffer_size:32768}")
+    private int maxBinaryMessageBufferSize;
+
     @Bean
     public ServletServerContainerFactoryBean createWebSocketContainer() {
         ServletServerContainerFactoryBean container = new ServletServerContainerFactoryBean();
-        container.setMaxTextMessageBufferSize(32768);
-        container.setMaxBinaryMessageBufferSize(32768);
+        container.setMaxTextMessageBufferSize(maxTextMessageBufferSize);
+        container.setMaxBinaryMessageBufferSize(maxBinaryMessageBufferSize);
         return container;
     }
 

application/src/main/resources/thingsboard.yml

@@ -78,6 +78,10 @@ server:
     max_entities_per_data_subscription: "${TB_SERVER_WS_MAX_ENTITIES_PER_DATA_SUBSCRIPTION:10000}"
     # Maximum number of alarms returned for single alarm subscription. For example, no more than 10,000 alarms on the alarm widget
     max_entities_per_alarm_subscription: "${TB_SERVER_WS_MAX_ENTITIES_PER_ALARM_SUBSCRIPTION:10000}"
+    # Maximum size (bytes) of incoming WS text message
+    max_text_message_buffer_size: "${TB_SERVER_WS_MAX_TEXT_MESSAGE_BUFFER_SIZE:32768}"
+    # Maximum size (bytes) of incoming WS binary message
+    max_binary_message_buffer_size: "${TB_SERVER_WS_MAX_BINARY_MESSAGE_BUFFER_SIZE:32768}"
     # Maximum queue size of the websocket updates per session. This restriction prevents infinite updates of WS
     max_queue_messages_per_session: "${TB_SERVER_WS_DEFAULT_QUEUE_MESSAGES_PER_SESSION:1000}"
     # Maximum time between WS session opening and sending auth command