1 files changed, 89 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/handler/network/StandardLoggingHandler.java b/src/main/java/org/traccar/handler/network/StandardLoggingHandler.java
new file mode 100644
index 000000000..dae93655d
--- /dev/null
+++ b/src/main/java/org/traccar/handler/network/StandardLoggingHandler.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2019 - 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.buffer.ByteBuf;
+import io.netty.buffer.ByteBufUtil;
+import io.netty.channel.ChannelDuplexHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelPromise;
+import jakarta.inject.Inject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.NetworkMessage;
+import org.traccar.helper.NetworkUtil;
+import org.traccar.model.LogRecord;
+import org.traccar.session.ConnectionManager;
+
+public class StandardLoggingHandler extends ChannelDuplexHandler {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(StandardLoggingHandler.class);
+
+    private final String protocol;
+    private ConnectionManager connectionManager;
+
+    public StandardLoggingHandler(String protocol) {
+        this.protocol = protocol;
+    }
+
+    @Inject
+    public void setConnectionManager(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
+    }
+
+    @Override
+    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+        LogRecord record = createLogRecord(ctx, msg);
+        log(ctx, false, record);
+        super.channelRead(ctx, msg);
+        if (record != null) {
+            connectionManager.updateLog(record);
+        }
+    }
+
+    @Override
+    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
+        log(ctx, true, createLogRecord(ctx, msg));
+        super.write(ctx, msg, promise);
+    }
+
+    private LogRecord createLogRecord(ChannelHandlerContext ctx, Object msg) {
+        if (msg instanceof NetworkMessage) {
+            NetworkMessage networkMessage = (NetworkMessage) msg;
+            if (networkMessage.getMessage() instanceof ByteBuf) {
+                LogRecord record = new LogRecord(ctx.channel().localAddress(), networkMessage.getRemoteAddress());
+                record.setProtocol(protocol);
+                record.setData(ByteBufUtil.hexDump((ByteBuf) networkMessage.getMessage()));
+                return record;
+            }
+        }
+        return null;
+    }
+
+    private void log(ChannelHandlerContext ctx, boolean downstream, LogRecord record) {
+        if (record != null) {
+            StringBuilder message = new StringBuilder();
+            message.append("[").append(NetworkUtil.session(ctx.channel())).append(": ");
+            message.append(protocol);
+            message.append(downstream ? " > " : " < ");
+            message.append(record.getAddress().getHostString());
+            message.append("] ");
+            message.append(record.getData());
+            LOGGER.info(message.toString());
+        }
+    }
+
+}