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/*
* Copyright 2015 - 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.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.BcdUtil;
import org.traccar.helper.BitUtil;
import org.traccar.helper.Checksum;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.CellTower;
import org.traccar.model.Network;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;
import java.util.TimeZone;
public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
public HuabaoProtocolDecoder(Protocol protocol) {
super(protocol);
}
public static final int MSG_GENERAL_RESPONSE = 0x8001;
public static final int MSG_GENERAL_RESPONSE_2 = 0x4401;
public static final int MSG_HEARTBEAT = 0x0002;
public static final int MSG_TERMINAL_REGISTER = 0x0100;
public static final int MSG_TERMINAL_REGISTER_RESPONSE = 0x8100;
public static final int MSG_TERMINAL_CONTROL = 0x8105;
public static final int MSG_TERMINAL_AUTH = 0x0102;
public static final int MSG_LOCATION_REPORT = 0x0200;
public static final int MSG_ACCELERATION = 0x2070;
public static final int MSG_LOCATION_REPORT_2 = 0x5501;
public static final int MSG_LOCATION_REPORT_BLIND = 0x5502;
public static final int MSG_LOCATION_BATCH = 0x0704;
public static final int MSG_OIL_CONTROL = 0XA006;
public static final int MSG_TIME_SYNC_REQUEST = 0x0109;
public static final int MSG_TIME_SYNC_RESPONSE = 0x8109;
public static final int MSG_PHOTO = 0x8888;
public static final int RESULT_SUCCESS = 0;
public static ByteBuf formatMessage(int type, ByteBuf id, boolean shortIndex, ByteBuf data) {
ByteBuf buf = Unpooled.buffer();
buf.writeByte(0x7e);
buf.writeShort(type);
buf.writeShort(data.readableBytes());
buf.writeBytes(id);
if (shortIndex) {
buf.writeByte(1);
} else {
buf.writeShort(0);
}
buf.writeBytes(data);
data.release();
buf.writeByte(Checksum.xor(buf.nioBuffer(1, buf.readableBytes() - 1)));
buf.writeByte(0x7e);
return buf;
}
private void sendGeneralResponse(
Channel channel, SocketAddress remoteAddress, ByteBuf id, int type, int index) {
if (channel != null) {
ByteBuf response = Unpooled.buffer();
response.writeShort(index);
response.writeShort(type);
response.writeByte(RESULT_SUCCESS);
channel.writeAndFlush(new NetworkMessage(
formatMessage(MSG_GENERAL_RESPONSE, id, false, response), remoteAddress));
}
}
private void sendGeneralResponse2(
Channel channel, SocketAddress remoteAddress, ByteBuf id, int type) {
if (channel != null) {
ByteBuf response = Unpooled.buffer();
response.writeShort(type);
response.writeByte(RESULT_SUCCESS);
channel.writeAndFlush(new NetworkMessage(
formatMessage(MSG_GENERAL_RESPONSE_2, id, true, response), remoteAddress));
}
}
private String decodeAlarm(long value) {
if (BitUtil.check(value, 0)) {
return Position.ALARM_SOS;
}
if (BitUtil.check(value, 1)) {
return Position.ALARM_OVERSPEED;
}
if (BitUtil.check(value, 5)) {
return Position.ALARM_GPS_ANTENNA_CUT;
}
if (BitUtil.check(value, 4) || BitUtil.check(value, 9)
|| BitUtil.check(value, 10) || BitUtil.check(value, 11)) {
return Position.ALARM_FAULT;
}
if (BitUtil.check(value, 8)) {
return Position.ALARM_POWER_OFF;
}
if (BitUtil.check(value, 17)) {
return Position.ALARM_TAMPERING;
}
if (BitUtil.check(value, 20)) {
return Position.ALARM_GEOFENCE;
}
if (BitUtil.check(value, 28)) {
return Position.ALARM_MOVEMENT;
}
if (BitUtil.check(value, 29)) {
return Position.ALARM_ACCIDENT;
}
return null;
}
private int readSignedWord(ByteBuf buf) {
int value = buf.readUnsignedShort();
return BitUtil.check(value, 15) ? -BitUtil.to(value, 15) : BitUtil.to(value, 15);
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
ByteBuf buf = (ByteBuf) msg;
if (buf.getByte(buf.readerIndex()) == '(') {
return decodeResult(channel, remoteAddress, buf.toString(StandardCharsets.US_ASCII));
}
buf.readUnsignedByte(); // start marker
int type = buf.readUnsignedShort();
int attribute = buf.readUnsignedShort();
ByteBuf id = buf.readSlice(6); // phone number
int index;
if (type == MSG_LOCATION_REPORT_2 || type == MSG_LOCATION_REPORT_BLIND) {
index = buf.readUnsignedByte();
} else {
index = buf.readUnsignedShort();
}
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, ByteBufUtil.hexDump(id));
if (deviceSession == null) {
return null;
}
if (deviceSession.getTimeZone() == null) {
deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId(), "GMT+8"));
}
if (type == MSG_TERMINAL_REGISTER) {
if (channel != null) {
ByteBuf response = Unpooled.buffer();
response.writeShort(index);
response.writeByte(RESULT_SUCCESS);
response.writeBytes(ByteBufUtil.hexDump(id).getBytes(StandardCharsets.US_ASCII));
channel.writeAndFlush(new NetworkMessage(
formatMessage(MSG_TERMINAL_REGISTER_RESPONSE, id, false, response), remoteAddress));
}
} else if (type == MSG_TERMINAL_AUTH || type == MSG_HEARTBEAT || type == MSG_PHOTO) {
sendGeneralResponse(channel, remoteAddress, id, type, index);
} else if (type == MSG_LOCATION_REPORT) {
sendGeneralResponse(channel, remoteAddress, id, type, index);
return decodeLocation(deviceSession, buf);
} else if (type == MSG_LOCATION_REPORT_2 || type == MSG_LOCATION_REPORT_BLIND) {
if (BitUtil.check(attribute, 15)) {
sendGeneralResponse2(channel, remoteAddress, id, type);
}
return decodeLocation2(deviceSession, buf, type);
} else if (type == MSG_LOCATION_BATCH) {
sendGeneralResponse(channel, remoteAddress, id, type, index);
return decodeLocationBatch(deviceSession, buf);
} else if (type == MSG_TIME_SYNC_REQUEST) {
if (channel != null) {
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
ByteBuf response = Unpooled.buffer();
response.writeShort(calendar.get(Calendar.YEAR));
response.writeByte(calendar.get(Calendar.MONTH) + 1);
response.writeByte(calendar.get(Calendar.DAY_OF_MONTH));
response.writeByte(calendar.get(Calendar.HOUR_OF_DAY));
response.writeByte(calendar.get(Calendar.MINUTE));
response.writeByte(calendar.get(Calendar.SECOND));
channel.writeAndFlush(new NetworkMessage(
formatMessage(MSG_TERMINAL_REGISTER_RESPONSE, id, false, response), remoteAddress));
}
} else if (type == MSG_ACCELERATION) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
getLastLocation(position, null);
StringBuilder data = new StringBuilder("[");
while (buf.readableBytes() > 2) {
buf.skipBytes(6); // time
if (data.length() > 1) {
data.append(",");
}
data.append("[");
data.append(readSignedWord(buf));
data.append(",");
data.append(readSignedWord(buf));
data.append(",");
data.append(readSignedWord(buf));
data.append("]");
}
data.append("]");
position.set(Position.KEY_G_SENSOR, data.toString());
return position;
}
return null;
}
private Position decodeResult(Channel channel, SocketAddress remoteAddress, String sentence) {
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession != null) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
getLastLocation(position, null);
position.set(Position.KEY_RESULT, sentence);
return position;
}
return null;
}
private void decodeExtension(Position position, ByteBuf buf, int endIndex) {
while (buf.readerIndex() < endIndex) {
int type = buf.readUnsignedByte();
int length = buf.readUnsignedByte();
switch (type) {
case 0x01:
position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 100L);
break;
case 0x02:
position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedShort() * 0.1);
break;
case 0x03:
position.set(Position.KEY_OBD_SPEED, buf.readUnsignedShort() * 0.1);
break;
case 0x80:
position.set(Position.KEY_OBD_SPEED, buf.readUnsignedByte());
break;
case 0x81:
position.set(Position.KEY_RPM, buf.readUnsignedShort());
break;
case 0x82:
position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.1);
break;
case 0x83:
position.set(Position.KEY_ENGINE_LOAD, buf.readUnsignedByte());
break;
case 0x84:
position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedByte() - 40);
break;
case 0x85:
position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort());
break;
case 0x86:
position.set("intakeTemp", buf.readUnsignedByte() - 40);
break;
case 0x87:
position.set("intakeFlow", buf.readUnsignedShort());
break;
case 0x88:
position.set("intakePressure", buf.readUnsignedByte());
break;
case 0x89:
position.set(Position.KEY_THROTTLE, buf.readUnsignedByte());
break;
case 0x8B:
position.set(Position.KEY_VIN, buf.readCharSequence(17, StandardCharsets.US_ASCII).toString());
break;
case 0x8C:
position.set(Position.KEY_OBD_ODOMETER, buf.readUnsignedInt() * 100L);
break;
case 0x8D:
position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedShort() * 1000L);
break;
case 0x8E:
position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte());
break;
case 0xCC:
position.set(Position.KEY_ICCID, buf.readCharSequence(20, StandardCharsets.US_ASCII).toString());
break;
default:
buf.skipBytes(length);
break;
}
}
}
private Position decodeLocation(DeviceSession deviceSession, ByteBuf buf) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedInt()));
int status = buf.readInt();
position.set(Position.KEY_IGNITION, BitUtil.check(status, 0));
position.set(Position.KEY_BLOCKED, BitUtil.check(status, 10));
position.setValid(BitUtil.check(status, 1));
double lat = buf.readUnsignedInt() * 0.000001;
double lon = buf.readUnsignedInt() * 0.000001;
if (BitUtil.check(status, 2)) {
position.setLatitude(-lat);
} else {
position.setLatitude(lat);
}
if (BitUtil.check(status, 3)) {
position.setLongitude(-lon);
} else {
position.setLongitude(lon);
}
position.setAltitude(buf.readShort());
position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort() * 0.1));
position.setCourse(buf.readUnsignedShort());
DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
.setYear(BcdUtil.readInteger(buf, 2))
.setMonth(BcdUtil.readInteger(buf, 2))
.setDay(BcdUtil.readInteger(buf, 2))
.setHour(BcdUtil.readInteger(buf, 2))
.setMinute(BcdUtil.readInteger(buf, 2))
.setSecond(BcdUtil.readInteger(buf, 2));
position.setTime(dateBuilder.getDate());
if (buf.readableBytes() == 20) {
buf.skipBytes(4); // remaining battery and mileage
position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 1000);
position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.1);
buf.readUnsignedInt(); // area id
position.set(Position.KEY_RSSI, buf.readUnsignedByte());
buf.skipBytes(3); // reserved
return position;
}
while (buf.readableBytes() > 2) {
int subtype = buf.readUnsignedByte();
int length = buf.readUnsignedByte();
int endIndex = buf.readerIndex() + length;
switch (subtype) {
case 0x01:
position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 100);
break;
case 0x02:
position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedShort() * 0.1);
break;
case 0x30:
position.set(Position.KEY_RSSI, buf.readUnsignedByte());
break;
case 0x31:
position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
break;
case 0x33:
String sentence = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
if (sentence.startsWith("*M00")) {
String lockStatus = sentence.substring(8, 8 + 7);
position.set(Position.KEY_BATTERY, Integer.parseInt(lockStatus.substring(2, 5)) * 0.01);
}
break;
case 0x80:
buf.readUnsignedByte(); // content
endIndex = buf.writerIndex() - 2;
decodeExtension(position, buf, endIndex);
break;
case 0x91:
position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.1);
position.set(Position.KEY_RPM, buf.readUnsignedShort());
position.set(Position.KEY_OBD_SPEED, buf.readUnsignedByte());
position.set(Position.KEY_THROTTLE, buf.readUnsignedByte() * 100 / 255);
position.set(Position.KEY_ENGINE_LOAD, buf.readUnsignedByte() * 100 / 255);
position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedByte() - 40);
buf.readUnsignedShort();
position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort() * 0.01);
buf.readUnsignedShort();
buf.readUnsignedInt();
buf.readUnsignedShort();
position.set(Position.KEY_FUEL_USED, buf.readUnsignedShort() * 0.01);
break;
case 0x94:
if (length > 0) {
position.set(
Position.KEY_VIN, buf.readCharSequence(length, StandardCharsets.US_ASCII).toString());
}
break;
case 0xA7:
position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort());
position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShort());
break;
case 0xAC:
position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
break;
case 0xD0:
long userStatus = buf.readUnsignedInt();
if (BitUtil.check(userStatus, 3)) {
position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION);
}
break;
case 0xD3:
position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.1);
break;
case 0xD4:
case 0xFE:
position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
break;
case 0xD5:
position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
break;
case 0xDA:
buf.readUnsignedShort(); // string cut count
int deviceStatus = buf.readUnsignedByte();
position.set("string", BitUtil.check(deviceStatus, 0));
position.set(Position.KEY_MOTION, BitUtil.check(deviceStatus, 2));
position.set("cover", BitUtil.check(deviceStatus, 3));
break;
case 0xEB:
if (buf.getUnsignedShort(buf.readerIndex()) > 200) {
Network network = new Network();
int mcc = buf.readUnsignedShort();
int mnc = buf.readUnsignedByte();
while (buf.readerIndex() < endIndex) {
network.addCellTower(CellTower.from(
mcc, mnc, buf.readUnsignedShort(), buf.readUnsignedShort(),
buf.readUnsignedByte()));
}
position.setNetwork(network);
} else {
while (buf.readerIndex() < endIndex) {
int extendedLength = buf.readUnsignedShort();
int extendedType = buf.readUnsignedShort();
switch (extendedType) {
case 0x0001:
position.set("fuel1", buf.readUnsignedShort() * 0.1);
buf.readUnsignedByte(); // unused
break;
case 0x0023:
position.set("fuel2", Double.parseDouble(
buf.readCharSequence(6, StandardCharsets.US_ASCII).toString()));
break;
case 0x00CE:
position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
break;
default:
buf.skipBytes(extendedLength - 2);
break;
}
}
}
break;
case 0xED:
String license = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString().trim();
position.set("driverLicense", license);
break;
case 0xEE:
position.set(Position.KEY_RSSI, buf.readUnsignedByte());
position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.001);
position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001);
position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
break;
default:
break;
}
buf.readerIndex(endIndex);
}
return position;
}
private Position decodeLocation2(DeviceSession deviceSession, ByteBuf buf, int type) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
Jt600ProtocolDecoder.decodeBinaryLocation(buf, position);
position.setValid(type != MSG_LOCATION_REPORT_BLIND);
position.set(Position.KEY_RSSI, buf.readUnsignedByte());
position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 1000L);
int battery = buf.readUnsignedByte();
if (battery <= 100) {
position.set(Position.KEY_BATTERY_LEVEL, battery);
} else if (battery == 0xAA) {
position.set(Position.KEY_CHARGE, true);
}
position.setNetwork(new Network(CellTower.fromCidLac(buf.readUnsignedInt(), buf.readUnsignedShort())));
int product = buf.readUnsignedByte();
int status = buf.readUnsignedShort();
int alarm = buf.readUnsignedShort();
if (product == 1 || product == 2) {
if (BitUtil.check(alarm, 0)) {
position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
}
} else if (product == 3) {
position.set(Position.KEY_BLOCKED, BitUtil.check(status, 5));
if (BitUtil.check(alarm, 1)) {
position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
}
if (BitUtil.check(alarm, 2)) {
position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION);
}
if (BitUtil.check(alarm, 3)) {
position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
}
}
position.set(Position.KEY_STATUS, status);
return position;
}
private List<Position> decodeLocationBatch(DeviceSession deviceSession, ByteBuf buf) {
List<Position> positions = new LinkedList<>();
int count = buf.readUnsignedShort();
int locationType = buf.readUnsignedByte();
for (int i = 0; i < count; i++) {
int endIndex = buf.readUnsignedShort() + buf.readerIndex();
Position position = decodeLocation(deviceSession, buf);
if (locationType == 0) {
position.set(Position.KEY_ARCHIVE, true);
}
positions.add(position);
buf.readerIndex(endIndex);
}
return positions;
}
}
|