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diff --git a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
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+/*
+ * Copyright 2015 - 2018 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.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Context;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.model.WifiAccessPoint;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.regex.Pattern;
+
+public class WatchProtocolDecoder extends BaseProtocolDecoder {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(WatchProtocolDecoder.class);
+
+ public WatchProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN_POSITION = new PatternBuilder()
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .expression("([AV]),") // validity
+ .number(" *(-?d+.d+),") // latitude
+ .expression("([NS]),")
+ .number(" *(-?d+.d+),") // longitude
+ .expression("([EW])?,")
+ .number("(d+.?d*),") // speed
+ .number("(d+.?d*),") // course
+ .number("(d+.?d*),") // altitude
+ .number("(d+),") // satellites
+ .number("(d+),") // rssi
+ .number("(d+),") // battery
+ .number("(d+),") // steps
+ .number("d+,") // tumbles
+ .number("(x+),") // status
+ .expression("(.*)") // cell and wifi
+ .compile();
+
+ private void sendResponse(Channel channel, String id, String index, String content) {
+ if (channel != null) {
+ String response;
+ if (index != null) {
+ response = String.format("[%s*%s*%s*%04x*%s]",
+ manufacturer, id, index, content.length(), content);
+ } else {
+ response = String.format("[%s*%s*%04x*%s]",
+ manufacturer, id, content.length(), content);
+ }
+ ByteBuf buf = Unpooled.copiedBuffer(response, StandardCharsets.US_ASCII);
+ channel.writeAndFlush(new NetworkMessage(buf, channel.remoteAddress()));
+ }
+ }
+
+ private String decodeAlarm(int status) {
+ if (BitUtil.check(status, 0)) {
+ return Position.ALARM_LOW_BATTERY;
+ } else if (BitUtil.check(status, 1)) {
+ return Position.ALARM_GEOFENCE_EXIT;
+ } else if (BitUtil.check(status, 2)) {
+ return Position.ALARM_GEOFENCE_ENTER;
+ } else if (BitUtil.check(status, 3)) {
+ return Position.ALARM_OVERSPEED;
+ } else if (BitUtil.check(status, 16)) {
+ return Position.ALARM_SOS;
+ } else if (BitUtil.check(status, 17)) {
+ return Position.ALARM_LOW_BATTERY;
+ } else if (BitUtil.check(status, 18)) {
+ return Position.ALARM_GEOFENCE_EXIT;
+ } else if (BitUtil.check(status, 19)) {
+ return Position.ALARM_GEOFENCE_ENTER;
+ } else if (BitUtil.check(status, 20)) {
+ return Position.ALARM_REMOVING;
+ } else if (BitUtil.check(status, 21)) {
+ return Position.ALARM_FALL_DOWN;
+ }
+ return null;
+ }
+
+ private Position decodePosition(DeviceSession deviceSession, String data) {
+
+ Parser parser = new Parser(PATTERN_POSITION, data);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+
+ position.setValid(parser.next().equals("A"));
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+ position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble(0)));
+ position.setCourse(parser.nextDouble(0));
+ position.setAltitude(parser.nextDouble(0));
+
+ position.set(Position.KEY_SATELLITES, parser.nextInt(0));
+ position.set(Position.KEY_RSSI, parser.nextInt(0));
+ position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt(0));
+
+ position.set(Position.KEY_STEPS, parser.nextInt(0));
+
+ int status = parser.nextHexInt(0);
+ position.set(Position.KEY_ALARM, decodeAlarm(status));
+ if (BitUtil.check(status, 4)) {
+ position.set(Position.KEY_MOTION, true);
+ }
+
+ String[] values = parser.next().split(",");
+ int index = 0;
+
+ Network network = new Network();
+
+ int cellCount = Integer.parseInt(values[index++]);
+ index += 1; // timing advance
+ int mcc = Integer.parseInt(values[index++]);
+ int mnc = Integer.parseInt(values[index++]);
+
+ for (int i = 0; i < cellCount; i++) {
+ network.addCellTower(CellTower.from(mcc, mnc,
+ Integer.parseInt(values[index++]), Integer.parseInt(values[index++]),
+ Integer.parseInt(values[index++])));
+ }
+
+ if (index < values.length && !values[index].isEmpty()) {
+ int wifiCount = Integer.parseInt(values[index++]);
+
+ for (int i = 0; i < wifiCount; i++) {
+ index += 1; // wifi name
+ network.addWifiAccessPoint(WifiAccessPoint.from(
+ values[index++], Integer.parseInt(values[index++])));
+ }
+ }
+
+ if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
+ position.setNetwork(network);
+ }
+
+ return position;
+ }
+
+ private boolean hasIndex;
+ private String manufacturer;
+
+ public boolean getHasIndex() {
+ return hasIndex;
+ }
+
+ public String getManufacturer() {
+ return manufacturer;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.skipBytes(1); // '[' header
+ manufacturer = buf.readSlice(2).toString(StandardCharsets.US_ASCII);
+ buf.skipBytes(1); // '*' delimiter
+
+ int idIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*');
+ String id = buf.readSlice(idIndex - buf.readerIndex()).toString(StandardCharsets.US_ASCII);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ buf.skipBytes(1); // '*' delimiter
+
+ String index = null;
+ int contentIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*');
+ if (contentIndex + 5 < buf.writerIndex() && buf.getByte(contentIndex + 5) == '*'
+ && buf.toString(contentIndex + 1, 4, StandardCharsets.US_ASCII).matches("\\p{XDigit}+")) {
+ int indexLength = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*') - buf.readerIndex();
+ hasIndex = true;
+ index = buf.readSlice(indexLength).toString(StandardCharsets.US_ASCII);
+ buf.skipBytes(1); // '*' delimiter
+ }
+
+ buf.skipBytes(4); // length
+ buf.skipBytes(1); // '*' delimiter
+
+ buf.writerIndex(buf.writerIndex() - 1); // ']' ignore ending
+
+ contentIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ',');
+ if (contentIndex < 0) {
+ contentIndex = buf.writerIndex();
+ }
+
+ String type = buf.readSlice(contentIndex - buf.readerIndex()).toString(StandardCharsets.US_ASCII);
+
+ if (contentIndex < buf.writerIndex()) {
+ buf.readerIndex(contentIndex + 1);
+ }
+
+ if (type.equals("INIT")) {
+
+ sendResponse(channel, id, index, "INIT,1");
+
+ } else if (type.equals("LK")) {
+
+ sendResponse(channel, id, index, "LK");
+
+ if (buf.isReadable()) {
+ String[] values = buf.toString(StandardCharsets.US_ASCII).split(",");
+ if (values.length >= 3) {
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, null);
+
+ position.set(Position.KEY_BATTERY_LEVEL, Integer.parseInt(values[2]));
+
+ return position;
+ }
+ }
+
+ } else if (type.equals("UD") || type.equals("UD2") || type.equals("UD3")
+ || type.equals("AL") || type.equals("WT")) {
+
+ Position position = decodePosition(deviceSession, buf.toString(StandardCharsets.US_ASCII));
+
+ if (type.equals("AL")) {
+ if (position != null) {
+ position.set(Position.KEY_ALARM, Position.ALARM_SOS);
+ }
+ sendResponse(channel, id, index, "AL");
+ }
+
+ return position;
+
+ } else if (type.equals("TKQ")) {
+
+ sendResponse(channel, id, index, "TKQ");
+
+ } else if (type.equals("PULSE") || type.equals("heart") || type.equals("bphrt")) {
+
+ if (buf.isReadable()) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, new Date());
+
+ String[] values = buf.toString(StandardCharsets.US_ASCII).split(",");
+ int valueIndex = 0;
+
+ if (type.equals("bphrt")) {
+ position.set("pressureHigh", values[valueIndex++]);
+ position.set("pressureLow", values[valueIndex++]);
+ }
+ position.set(Position.KEY_HEART_RATE, Integer.parseInt(values[valueIndex]));
+
+ return position;
+
+ }
+
+ } else if (type.equals("img")) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, null);
+
+ int timeIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ',');
+ buf.readerIndex(timeIndex + 12 + 2);
+ position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(id, buf, "jpg"));
+
+ return position;
+
+ } else if (type.equals("TK")) {
+
+ if (buf.readableBytes() == 1) {
+ byte result = buf.readByte();
+ if (result != '1') {
+ LOGGER.warn(type + "," + result);
+ }
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, null);
+
+ position.set(Position.KEY_AUDIO, Context.getMediaManager().writeFile(id, buf, "amr"));
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}