From 0e2a2b1b6ba851d599c9c8f53b3775eb15378b7c Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sat, 21 Sep 2019 11:29:05 -0700 Subject: Implement PT215 protocol --- .../java/org/traccar/protocol/Pt215Protocol.java | 35 ++++++ .../org/traccar/protocol/Pt215ProtocolDecoder.java | 118 +++++++++++++++++++++ 2 files changed, 153 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/Pt215Protocol.java create mode 100644 src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java (limited to 'src/main/java/org') diff --git a/src/main/java/org/traccar/protocol/Pt215Protocol.java b/src/main/java/org/traccar/protocol/Pt215Protocol.java new file mode 100644 index 000000000..35ea86b9c --- /dev/null +++ b/src/main/java/org/traccar/protocol/Pt215Protocol.java @@ -0,0 +1,35 @@ +/* + * 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; + +public class Pt215Protocol extends BaseProtocol { + + public Pt215Protocol() { + addServer(new TrackerServer(false, getName()) { + @Override + protected void addProtocolHandlers(PipelineBuilder pipeline) { + pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2, 1, 2, 0)); + pipeline.addLast(new Pt215ProtocolDecoder(Pt215Protocol.this)); + } + }); + } + +} diff --git a/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java new file mode 100644 index 000000000..48ce7dede --- /dev/null +++ b/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java @@ -0,0 +1,118 @@ +/* + * 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.buffer.Unpooled; +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.BitUtil; +import org.traccar.helper.DateBuilder; +import org.traccar.model.Position; + +import java.net.SocketAddress; + +public class Pt215ProtocolDecoder extends BaseProtocolDecoder { + + public Pt215ProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_LOGIN = 0x01; + public static final int MSG_HEARTBEAT = 0x08; + public static final int MSG_GPS_REALTIME = 0x10; + public static final int MSG_GPS_OFFLINE = 0x11; + public static final int MSG_STATUS = 0x13; + + private void sendResponse( + Channel channel, SocketAddress remoteAddress, int type, ByteBuf content) { + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeByte('X'); + response.writeByte('X'); + response.writeByte(content != null ? 1 + content.readableBytes() : 1); + response.writeByte(type); + if (content != null) { + response.writeBytes(content); + content.release(); + } + response.writeByte('\r'); + response.writeByte('\n'); + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(2); // header + buf.readUnsignedByte(); // length + int type = buf.readUnsignedByte(); + + if (type == MSG_LOGIN) { + + getDeviceSession(channel, remoteAddress, ByteBufUtil.hexDump(buf.readSlice(8)).substring(1)); + sendResponse(channel, remoteAddress, type, null); + + } else if (type == MSG_GPS_OFFLINE || type == MSG_GPS_REALTIME) { + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); + if (deviceSession == null) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + sendResponse(channel, remoteAddress, type, buf.retainedSlice(buf.readerIndex(), 6)); + + DateBuilder dateBuilder = new DateBuilder() + .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()) + .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()); + position.setTime(dateBuilder.getDate()); + + double latitude = buf.readUnsignedInt() / 60.0 / 30000.0; + double longitude = buf.readUnsignedInt() / 60.0 / 30000.0; + + int flags = buf.readUnsignedShort(); + position.setCourse(BitUtil.to(flags, 10)); + position.setValid(BitUtil.check(flags, 12)); + + if (!BitUtil.check(flags, 10)) { + latitude = -latitude; + } + if (BitUtil.check(flags, 11)) { + longitude = -longitude; + } + + position.setLatitude(latitude); + position.setLongitude(longitude); + + return position; + + } + + return null; + } + +} -- cgit v1.2.3