diff options
3 files changed, 163 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/VnetProtocol.java b/src/main/java/org/traccar/protocol/VnetProtocol.java new file mode 100644 index 000000000..0fed30e13 --- /dev/null +++ b/src/main/java/org/traccar/protocol/VnetProtocol.java @@ -0,0 +1,37 @@ +/* + * 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.protocol; + +import io.netty.handler.codec.LengthFieldBasedFrameDecoder; +import org.traccar.BaseProtocol; +import org.traccar.PipelineBuilder; +import org.traccar.TrackerServer; + +import java.nio.ByteOrder; + +public class VnetProtocol extends BaseProtocol { + + public VnetProtocol() { + addServer(new TrackerServer(false, getName()) { + @Override + protected void addProtocolHandlers(PipelineBuilder pipeline) { + pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1500, 4, 2, 12, 0, true)); + pipeline.addLast(new VnetProtocolDecoder(VnetProtocol.this)); + } + }); + } + +} diff --git a/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java b/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java new file mode 100644 index 000000000..1ee00bd3f --- /dev/null +++ b/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java @@ -0,0 +1,105 @@ +/* + * 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.protocol; + +import io.netty.buffer.ByteBuf; +import io.netty.buffer.ByteBufUtil; +import io.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.NetworkMessage; +import org.traccar.Protocol; +import org.traccar.helper.BcdUtil; +import org.traccar.helper.BitUtil; +import org.traccar.helper.DateBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; + +public class VnetProtocolDecoder extends BaseProtocolDecoder { + + public VnetProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_LOGIN = 0x0000; + public static final int MSG_LBS = 0x32; + public static final int MSG_GPS = 0x33; + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(2); // header + int type = BitUtil.to(buf.readUnsignedShortLE(), 15); + buf.readUnsignedShortLE(); // length + + DateBuilder dateBuilder = new DateBuilder() + .setDateReverse(BcdUtil.readInteger(buf, 2), BcdUtil.readInteger(buf, 2), BcdUtil.readInteger(buf, 2)) + .setTime(BcdUtil.readInteger(buf, 2), BcdUtil.readInteger(buf, 2), BcdUtil.readInteger(buf, 2)); + + if (type == MSG_LOGIN) { + + String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(0, 15); + getDeviceSession(channel, remoteAddress, imei); + if (channel != null) { + channel.writeAndFlush(new NetworkMessage( + buf.retainedSlice(0, buf.writerIndex()), channel.remoteAddress())); + } + + } else if (type == MSG_GPS) { + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); + if (deviceSession == null) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + position.setTime(dateBuilder.getDate()); + + int value; + int degrees; + + value = BcdUtil.readInteger(buf, 8); + degrees = value / 1000000; + double lat = degrees + value % 1000000 * 0.0001 / 60; + + value = BcdUtil.readInteger(buf, 10); + degrees = value / 10000000; + double lon = degrees + value % 10000000 * 0.00001 / 60; + + int flags = buf.readUnsignedByte(); + position.setValid(BitUtil.check(flags, 0)); + position.setLatitude(BitUtil.check(flags, 1) ? lat : -lat); + position.setLongitude(BitUtil.check(flags, 2) ? lon : -lon); + + position.set(Position.KEY_SATELLITES, buf.readUnsignedByte()); + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte())); + position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE()); + position.setCourse(buf.readUnsignedByte() * 2); + + return position; + + } + + return null; + } + +} diff --git a/src/test/java/org/traccar/protocol/VnetProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/VnetProtocolDecoderTest.java new file mode 100644 index 000000000..3281aae34 --- /dev/null +++ b/src/test/java/org/traccar/protocol/VnetProtocolDecoderTest.java @@ -0,0 +1,21 @@ +package org.traccar.protocol; + +import org.junit.Test; +import org.traccar.ProtocolTest; + +public class VnetProtocolDecoderTest extends ProtocolTest { + + @Test + public void testDecode() throws Exception { + + VnetProtocolDecoder decoder = new VnetProtocolDecoder(null); + + verifyNull(decoder, binary( + "24240000140029111909062986818303379282604c452e322e30302ea32b020f0000d3552323")); + + verifyPosition(decoder, binary( + "242433001200290615174213211489861061060690070B0001020304700005001E382323")); + + } + +} |