1 files changed, 98 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/handler/network/MainEventHandler.java b/src/main/java/org/traccar/handler/network/MainEventHandler.java
new file mode 100644
index 000000000..f60004126
--- /dev/null
+++ b/src/main/java/org/traccar/handler/network/MainEventHandler.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2012 - 2024 Anton Tananaev (anton@traccar.org)
+ *
+ * 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 org.traccar.handler.network;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+import io.netty.channel.socket.DatagramChannel;
+import io.netty.handler.codec.http.HttpRequestDecoder;
+import io.netty.handler.timeout.IdleStateEvent;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.BasePipelineFactory;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.NetworkUtil;
+import org.traccar.session.ConnectionManager;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+@Singleton
+@ChannelHandler.Sharable
+public class MainEventHandler extends ChannelInboundHandlerAdapter {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(MainEventHandler.class);
+
+    private final ConnectionManager connectionManager;
+    private final Set<String> connectionlessProtocols = new HashSet<>();
+
+    @Inject
+    public MainEventHandler(Config config, ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
+        String connectionlessProtocolList = config.getString(Keys.STATUS_IGNORE_OFFLINE);
+        if (connectionlessProtocolList != null) {
+            connectionlessProtocols.addAll(Arrays.asList(connectionlessProtocolList.split("[, ]")));
+        }
+    }
+
+    @Override
+    public void channelActive(ChannelHandlerContext ctx) {
+        if (!(ctx.channel() instanceof DatagramChannel)) {
+            LOGGER.info("[{}] connected", NetworkUtil.session(ctx.channel()));
+        }
+    }
+
+    @Override
+    public void channelInactive(ChannelHandlerContext ctx) {
+        LOGGER.info("[{}] disconnected", NetworkUtil.session(ctx.channel()));
+        closeChannel(ctx.channel());
+
+        boolean supportsOffline = BasePipelineFactory.getHandler(ctx.pipeline(), HttpRequestDecoder.class) == null
+                && !connectionlessProtocols.contains(ctx.pipeline().get(BaseProtocolDecoder.class).getProtocolName());
+        connectionManager.deviceDisconnected(ctx.channel(), supportsOffline);
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
+        while (cause.getCause() != null && cause.getCause() != cause) {
+            cause = cause.getCause();
+        }
+        LOGGER.info("[{}] error", NetworkUtil.session(ctx.channel()), cause);
+        closeChannel(ctx.channel());
+    }
+
+    @Override
+    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) {
+        if (evt instanceof IdleStateEvent) {
+            LOGGER.info("[{}] timed out", NetworkUtil.session(ctx.channel()));
+            closeChannel(ctx.channel());
+        }
+    }
+
+    private void closeChannel(Channel channel) {
+        if (!(channel instanceof DatagramChannel)) {
+            channel.close();
+        }
+    }
+
+}