diff options
Diffstat (limited to 'src/main/java/org/traccar/handler/network')
7 files changed, 535 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/handler/network/AcknowledgementHandler.java b/src/main/java/org/traccar/handler/network/AcknowledgementHandler.java new file mode 100644 index 000000000..e87f5d34c --- /dev/null +++ b/src/main/java/org/traccar/handler/network/AcknowledgementHandler.java @@ -0,0 +1,121 @@ +/* + * Copyright 2023 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.ChannelHandlerContext; +import io.netty.channel.ChannelOutboundHandlerAdapter; +import io.netty.channel.ChannelPromise; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Collection; +import java.util.HashSet; +import java.util.LinkedList; +import java.util.List; +import java.util.Set; + +public class AcknowledgementHandler extends ChannelOutboundHandlerAdapter { + + private static final Logger LOGGER = LoggerFactory.getLogger(AcknowledgementHandler.class); + + public interface Event { + } + + public static class EventReceived implements Event { + } + + public static class EventDecoded implements Event { + private final Collection<Object> objects; + + public EventDecoded(Collection<Object> objects) { + this.objects = objects; + } + + public Collection<Object> getObjects() { + return objects; + } + } + + public static class EventHandled implements Event { + private final Object object; + + public EventHandled(Object object) { + this.object = object; + } + + public Object getObject() { + return object; + } + } + + private static final class Entry { + private final Object message; + private final ChannelPromise promise; + + private Entry(Object message, ChannelPromise promise) { + this.message = message; + this.promise = promise; + } + + public Object getMessage() { + return message; + } + + public ChannelPromise getPromise() { + return promise; + } + } + + private List<Entry> queue; + private final Set<Object> waiting = new HashSet<>(); + + @Override + public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception { + List<Entry> output = new LinkedList<>(); + synchronized (this) { + if (msg instanceof Event) { + if (msg instanceof EventReceived) { + LOGGER.debug("Event received"); + if (queue == null) { + queue = new LinkedList<>(); + } + } else if (msg instanceof EventDecoded) { + EventDecoded event = (EventDecoded) msg; + LOGGER.debug("Event decoded {}", event.getObjects().size()); + waiting.addAll(event.getObjects()); + } else if (msg instanceof EventHandled) { + EventHandled event = (EventHandled) msg; + LOGGER.debug("Event handled"); + waiting.remove(event.getObject()); + } + if (!(msg instanceof EventReceived) && waiting.isEmpty()) { + output.addAll(queue); + queue = null; + } + } else if (queue != null) { + LOGGER.debug("Message queued"); + queue.add(new Entry(msg, promise)); + } else { + LOGGER.debug("Message sent"); + output.add(new Entry(msg, promise)); + } + } + for (Entry entry : output) { + ctx.write(entry.getMessage(), entry.getPromise()); + } + } + +} 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(); + } + } + +} diff --git a/src/main/java/org/traccar/handler/network/NetworkForwarderHandler.java b/src/main/java/org/traccar/handler/network/NetworkForwarderHandler.java new file mode 100644 index 000000000..5f07ce355 --- /dev/null +++ b/src/main/java/org/traccar/handler/network/NetworkForwarderHandler.java @@ -0,0 +1,72 @@ +/* + * Copyright 2023 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.channel.ChannelHandlerContext; +import io.netty.channel.ChannelInboundHandlerAdapter; +import io.netty.channel.socket.DatagramChannel; +import io.netty.channel.socket.DatagramPacket; +import org.traccar.forward.NetworkForwarder; + +import jakarta.inject.Inject; +import java.net.InetSocketAddress; +import java.net.SocketAddress; + +public class NetworkForwarderHandler extends ChannelInboundHandlerAdapter { + + private final int port; + + private NetworkForwarder networkForwarder; + + public NetworkForwarderHandler(int port) { + this.port = port; + } + + @Inject + public void setNetworkForwarder(NetworkForwarder networkForwarder) { + this.networkForwarder = networkForwarder; + } + + @Override + public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { + boolean datagram = ctx.channel() instanceof DatagramChannel; + SocketAddress remoteAddress; + ByteBuf buffer; + if (datagram) { + DatagramPacket message = (DatagramPacket) msg; + remoteAddress = message.recipient(); + buffer = message.content(); + } else { + remoteAddress = ctx.channel().remoteAddress(); + buffer = (ByteBuf) msg; + } + + byte[] data = new byte[buffer.readableBytes()]; + buffer.getBytes(buffer.readerIndex(), data); + networkForwarder.forward((InetSocketAddress) remoteAddress, port, datagram, data); + super.channelRead(ctx, msg); + } + + @Override + public void channelInactive(ChannelHandlerContext ctx) throws Exception { + if (!(ctx.channel() instanceof DatagramChannel)) { + networkForwarder.disconnect((InetSocketAddress) ctx.channel().remoteAddress()); + } + super.channelInactive(ctx); + } + +} diff --git a/src/main/java/org/traccar/handler/network/NetworkMessageHandler.java b/src/main/java/org/traccar/handler/network/NetworkMessageHandler.java new file mode 100644 index 000000000..c2fb9016a --- /dev/null +++ b/src/main/java/org/traccar/handler/network/NetworkMessageHandler.java @@ -0,0 +1,57 @@ +/* + * Copyright 2019 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.channel.ChannelDuplexHandler; +import io.netty.channel.ChannelHandlerContext; +import io.netty.channel.ChannelPromise; +import io.netty.channel.socket.DatagramChannel; +import io.netty.channel.socket.DatagramPacket; +import org.traccar.NetworkMessage; + +import java.net.InetSocketAddress; + +public class NetworkMessageHandler extends ChannelDuplexHandler { + + @Override + public void channelRead(ChannelHandlerContext ctx, Object msg) { + if (ctx.channel() instanceof DatagramChannel) { + DatagramPacket packet = (DatagramPacket) msg; + ctx.fireChannelRead(new NetworkMessage(packet.content(), packet.sender())); + } else if (msg instanceof ByteBuf) { + ByteBuf buffer = (ByteBuf) msg; + ctx.fireChannelRead(new NetworkMessage(buffer, ctx.channel().remoteAddress())); + } + } + + @Override + public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) { + if (msg instanceof NetworkMessage) { + NetworkMessage message = (NetworkMessage) msg; + if (ctx.channel() instanceof DatagramChannel) { + InetSocketAddress recipient = (InetSocketAddress) message.getRemoteAddress(); + InetSocketAddress sender = (InetSocketAddress) ctx.channel().localAddress(); + ctx.write(new DatagramPacket((ByteBuf) message.getMessage(), recipient, sender), promise); + } else { + ctx.write(message.getMessage(), promise); + } + } else { + ctx.write(msg, promise); + } + } + +} diff --git a/src/main/java/org/traccar/handler/network/OpenChannelHandler.java b/src/main/java/org/traccar/handler/network/OpenChannelHandler.java new file mode 100644 index 000000000..21aaae676 --- /dev/null +++ b/src/main/java/org/traccar/handler/network/OpenChannelHandler.java @@ -0,0 +1,42 @@ +/* + * Copyright 2019 - 2021 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.ChannelDuplexHandler; +import io.netty.channel.ChannelHandlerContext; +import org.traccar.TrackerConnector; + +public class OpenChannelHandler extends ChannelDuplexHandler { + + private final TrackerConnector connector; + + public OpenChannelHandler(TrackerConnector connector) { + this.connector = connector; + } + + @Override + public void channelActive(ChannelHandlerContext ctx) throws Exception { + super.channelActive(ctx); + connector.getChannelGroup().add(ctx.channel()); + } + + @Override + public void channelInactive(ChannelHandlerContext ctx) throws Exception { + super.channelInactive(ctx); + connector.getChannelGroup().remove(ctx.channel()); + } + +} diff --git a/src/main/java/org/traccar/handler/network/RemoteAddressHandler.java b/src/main/java/org/traccar/handler/network/RemoteAddressHandler.java new file mode 100644 index 000000000..c52bb2be1 --- /dev/null +++ b/src/main/java/org/traccar/handler/network/RemoteAddressHandler.java @@ -0,0 +1,56 @@ +/* + * Copyright 2015 - 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.ChannelHandler; +import io.netty.channel.ChannelHandlerContext; +import io.netty.channel.ChannelInboundHandlerAdapter; +import jakarta.inject.Inject; +import jakarta.inject.Singleton; +import org.traccar.config.Config; +import org.traccar.config.Keys; +import org.traccar.model.Position; + +import java.net.InetSocketAddress; + +@Singleton +@ChannelHandler.Sharable +public class RemoteAddressHandler extends ChannelInboundHandlerAdapter { + + private final boolean enabled; + + @Inject + public RemoteAddressHandler(Config config) { + enabled = config.getBoolean(Keys.PROCESSING_REMOTE_ADDRESS_ENABLE); + } + + @Override + public void channelRead(ChannelHandlerContext ctx, Object msg) { + + if (enabled) { + InetSocketAddress remoteAddress = (InetSocketAddress) ctx.channel().remoteAddress(); + String hostAddress = remoteAddress != null ? remoteAddress.getAddress().getHostAddress() : null; + + if (msg instanceof Position) { + Position position = (Position) msg; + position.set(Position.KEY_IP, hostAddress); + } + } + + ctx.fireChannelRead(msg); + } + +} 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()); + } + } + +} |