diff options
4 files changed, 126 insertions, 0 deletions
diff --git a/setup/default.xml b/setup/default.xml index b4e8d95e1..e70ff0534 100644 --- a/setup/default.xml +++ b/setup/default.xml @@ -285,5 +285,6 @@ <entry key='iotm.port'>5218</entry> <entry key='dolphin.port'>5219</entry> <entry key='ennfu.port'>5220</entry> + <entry key='navtelecom.port'>5221</entry> </properties> diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocol.java b/src/main/java/org/traccar/protocol/NavtelecomProtocol.java new file mode 100644 index 000000000..c76b42768 --- /dev/null +++ b/src/main/java/org/traccar/protocol/NavtelecomProtocol.java @@ -0,0 +1,35 @@ +/* + * Copyright 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.protocol; + +import io.netty.handler.codec.LengthFieldBasedFrameDecoder; +import org.traccar.BaseProtocol; +import org.traccar.PipelineBuilder; +import org.traccar.TrackerServer; + +public class NavtelecomProtocol extends BaseProtocol { + + public NavtelecomProtocol() { + addServer(new TrackerServer(false, getName()) { + @Override + protected void addProtocolHandlers(PipelineBuilder pipeline) { + pipeline.addLast(new LengthFieldBasedFrameDecoder(256, 2, 1, 2, 0)); + pipeline.addLast(new Gt02ProtocolDecoder(NavtelecomProtocol.this)); + } + }); + } + +} diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java new file mode 100644 index 000000000..2362b1870 --- /dev/null +++ b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java @@ -0,0 +1,72 @@ +/* + * Copyright 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.protocol; + +import io.netty.buffer.ByteBuf; +import io.netty.buffer.Unpooled; +import io.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.NetworkMessage; +import org.traccar.Protocol; +import org.traccar.helper.Checksum; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; + +public class NavtelecomProtocolDecoder extends BaseProtocolDecoder { + + public NavtelecomProtocolDecoder(Protocol protocol) { + super(protocol); + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(4); // preamble + int receiver = buf.readIntLE(); + int sender = buf.readIntLE(); + int length = buf.readUnsignedShortLE(); + buf.readUnsignedByte(); // data checksum + buf.readUnsignedByte(); // header checksum + + String sentence = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString(); + + if (sentence.startsWith("*>S")) { + + String data = "*<S"; + + ByteBuf response = Unpooled.buffer(); + response.writeCharSequence("@NTC", StandardCharsets.US_ASCII); + response.writeIntLE(sender); + response.writeIntLE(receiver); + response.writeShortLE(data.length()); + response.writeByte(Checksum.xor(data)); + response.writeByte(Checksum.xor(response.nioBuffer())); + response.writeCharSequence(data, StandardCharsets.US_ASCII); + + if (channel != null) { + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + + } + + return null; + } + +} diff --git a/src/test/java/org/traccar/protocol/NavtelecomProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/NavtelecomProtocolDecoderTest.java new file mode 100644 index 000000000..444752fb7 --- /dev/null +++ b/src/test/java/org/traccar/protocol/NavtelecomProtocolDecoderTest.java @@ -0,0 +1,18 @@ +package org.traccar.protocol; + +import org.junit.Test; +import org.traccar.ProtocolTest; + +public class NavtelecomProtocolDecoderTest extends ProtocolTest { + + @Test + public void testDecode() throws Exception { + + NavtelecomProtocolDecoder decoder = new NavtelecomProtocolDecoder(null); + + verifyNull(decoder, binary( + "404e5443010000000000000013004e452a3e533a383636373935303331343130363839")); + + } + +} |