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diff --git a/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
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+/*
+ * Copyright 2012 - 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.traccar.BaseProtocolDecoder;
+import org.traccar.Context;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.DataConverter;
+import org.traccar.helper.DateBuilder;
+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 java.net.SocketAddress;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
+
+ private int photoPackets = 0;
+ private ByteBuf photo;
+
+ public Gps103ProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("imei:")
+ .number("(d+),") // imei
+ .expression("([^,]+),") // alarm
+ .groupBegin()
+ .number("(dd)/?(dd)/?(dd) ?") // local date (yymmdd)
+ .number("(dd):?(dd)(?:dd)?,") // local time (hhmmss)
+ .or()
+ .number("d*,")
+ .groupEnd()
+ .expression("([^,]+)?,") // rfid
+ .groupBegin()
+ .text("L,,,")
+ .number("(x+),,") // lac
+ .number("(x+),,,") // cid
+ .or()
+ .text("F,")
+ .groupBegin()
+ .number("(dd)(dd)(dd).d+") // time utc (hhmmss)
+ .or()
+ .number("(?:d{1,5}.d+)?")
+ .groupEnd()
+ .text(",")
+ .expression("([AV]),") // validity
+ .expression("([NS]),").optional()
+ .number("(d+)(dd.d+),") // latitude (ddmm.mmmm)
+ .expression("([NS]),").optional()
+ .expression("([EW]),").optional()
+ .number("(d+)(dd.d+),") // longitude (dddmm.mmmm)
+ .expression("([EW])?,").optional()
+ .number("(d+.?d*)?").optional() // speed
+ .number(",(d+.?d*)?").optional() // course
+ .number(",(d+.?d*)?").optional() // altitude
+ .number(",([01])?").optional() // ignition
+ .number(",([01])?").optional() // door
+ .groupBegin()
+ .number(",(?:(d+.d+)%)?") // fuel 1
+ .number(",(?:(d+.d+)%|d+)?") // fuel 2
+ .groupEnd("?")
+ .number(",([-+]?d+)?").optional() // temperature
+ .groupEnd()
+ .any()
+ .compile();
+
+ private static final Pattern PATTERN_OBD = new PatternBuilder()
+ .text("imei:")
+ .number("(d+),") // imei
+ .expression("OBD,") // type
+ .number("(dd)(dd)(dd)") // date (yymmdd)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .number("(d+)?,") // odometer
+ .number("(d+.d+)?,") // fuel instant
+ .number("(d+.d+)?,") // fuel average
+ .number("(d+)?,") // hours
+ .number("(d+),") // speed
+ .number("(d+.?d*%),") // power load
+ .number("(?:([-+]?d+)|[-+]?),") // temperature
+ .number("(d+.?d*%),") // throttle
+ .number("(d+),") // rpm
+ .number("(d+.d+),") // battery
+ .number("([^;]*)") // dtcs
+ .any()
+ .compile();
+
+ private static final Pattern PATTERN_ALT = new PatternBuilder()
+ .text("imei:")
+ .number("(d+),") // imei
+ .expression("[^,]+,")
+ .expression("(?:-+|(.+)),") // event
+ .expression("(?:-+|(.+)),") // sensor id
+ .expression("(?:-+|(.+)),") // sensor voltage
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .number("(d+),") // rssi
+ .number("(d),") // gps status
+ .number("(-?d+.d+),") // latitude
+ .number("(-?d+.d+),") // longitude
+ .number("(d+),") // speed
+ .number("(d+),") // course
+ .number("(-?d+),") // altitude
+ .number("(d+.d+),") // hdop
+ .number("(d+),") // satellites
+ .number("([01]),") // ignition
+ .number("([01]),") // charge
+ .expression("(?:-+|(.+))") // error
+ .any()
+ .compile();
+
+ private String decodeAlarm(String value) {
+ if (value.startsWith("T:")) {
+ return Position.ALARM_TEMPERATURE;
+ } else if (value.startsWith("oil")) {
+ return Position.ALARM_FUEL_LEAK;
+ }
+ switch (value) {
+ case "tracker":
+ return null;
+ case "help me":
+ return Position.ALARM_SOS;
+ case "low battery":
+ return Position.ALARM_LOW_BATTERY;
+ case "stockade":
+ return Position.ALARM_GEOFENCE;
+ case "move":
+ return Position.ALARM_MOVEMENT;
+ case "speed":
+ return Position.ALARM_OVERSPEED;
+ case "acc on":
+ return Position.ALARM_POWER_ON;
+ case "acc off":
+ return Position.ALARM_POWER_OFF;
+ case "door alarm":
+ return Position.ALARM_DOOR;
+ case "ac alarm":
+ return Position.ALARM_POWER_CUT;
+ case "accident alarm":
+ return Position.ALARM_ACCIDENT;
+ case "sensor alarm":
+ return Position.ALARM_SHOCK;
+ case "bonnet alarm":
+ return Position.ALARM_BONNET;
+ case "footbrake alarm":
+ return Position.ALARM_FOOT_BRAKE;
+ case "DTC":
+ return Position.ALARM_FAULT;
+ default:
+ return null;
+ }
+ }
+
+ private Position decodeRegular(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ Parser parser = new Parser(PATTERN, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ String imei = parser.next();
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ String alarm = parser.next();
+ position.set(Position.KEY_ALARM, decodeAlarm(alarm));
+ if (alarm.equals("help me")) {
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage("**,imei:" + imei + ",E;", remoteAddress));
+ }
+ } else if (alarm.startsWith("vt")) {
+ photoPackets = Integer.parseInt(alarm.substring(2));
+ photo = Unpooled.buffer();
+ } else if (alarm.equals("acc on")) {
+ position.set(Position.KEY_IGNITION, true);
+ } else if (alarm.equals("acc off")) {
+ position.set(Position.KEY_IGNITION, false);
+ } else if (alarm.startsWith("T:")) {
+ position.set(Position.PREFIX_TEMP + 1, Double.parseDouble(alarm.substring(2)));
+ } else if (alarm.startsWith("oil ")) {
+ position.set(Position.KEY_FUEL_LEVEL, Double.parseDouble(alarm.substring(4)));
+ } else if (!position.getAttributes().containsKey(Position.KEY_ALARM) && !alarm.equals("tracker")) {
+ position.set(Position.KEY_EVENT, alarm);
+ }
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDate(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+
+ int localHours = parser.nextInt(0);
+ int localMinutes = parser.nextInt(0);
+
+ String rfid = parser.next();
+ if (alarm.equals("rfid")) {
+ position.set(Position.KEY_DRIVER_UNIQUE_ID, rfid);
+ }
+
+ if (parser.hasNext(2)) {
+
+ getLastLocation(position, null);
+
+ position.setNetwork(new Network(CellTower.fromLacCid(parser.nextHexInt(0), parser.nextHexInt(0))));
+
+ } else {
+
+ String utcHours = parser.next();
+ String utcMinutes = parser.next();
+
+ dateBuilder.setTime(localHours, localMinutes, parser.nextInt(0));
+
+ // Timezone calculation
+ if (utcHours != null && utcMinutes != null) {
+ int deltaMinutes = (localHours - Integer.parseInt(utcHours)) * 60;
+ deltaMinutes += localMinutes - Integer.parseInt(utcMinutes);
+ if (deltaMinutes <= -12 * 60) {
+ deltaMinutes += 24 * 60;
+ } else if (deltaMinutes > 12 * 60) {
+ deltaMinutes -= 24 * 60;
+ }
+ dateBuilder.addMinute(-deltaMinutes);
+ }
+ position.setTime(dateBuilder.getDate());
+
+ position.setValid(parser.next().equals("A"));
+ position.setFixTime(position.getDeviceTime());
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_HEM));
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_HEM));
+ position.setSpeed(parser.nextDouble(0));
+ position.setCourse(parser.nextDouble(0));
+ position.setAltitude(parser.nextDouble(0));
+
+ if (parser.hasNext()) {
+ position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
+ }
+ if (parser.hasNext()) {
+ position.set(Position.KEY_DOOR, parser.nextInt() == 1);
+ }
+ position.set("fuel1", parser.nextDouble());
+ position.set("fuel2", parser.nextDouble());
+ position.set(Position.PREFIX_TEMP + 1, parser.nextInt());
+
+ }
+
+ return position;
+ }
+
+ private Position decodeObd(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ Parser parser = new Parser(PATTERN_OBD, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, parser.nextDateTime());
+
+ position.set(Position.KEY_ODOMETER, parser.nextInt(0));
+ parser.nextDouble(0); // instant fuel consumption
+ position.set(Position.KEY_FUEL_CONSUMPTION, parser.nextDouble(0));
+ if (parser.hasNext()) {
+ position.set(Position.KEY_HOURS, UnitsConverter.msFromHours(parser.nextInt()));
+ }
+ position.set(Position.KEY_OBD_SPEED, parser.nextInt(0));
+ position.set(Position.KEY_ENGINE_LOAD, parser.next());
+ position.set(Position.KEY_COOLANT_TEMP, parser.nextInt());
+ position.set(Position.KEY_THROTTLE, parser.next());
+ position.set(Position.KEY_RPM, parser.nextInt(0));
+ position.set(Position.KEY_BATTERY, parser.nextDouble(0));
+ position.set(Position.KEY_DTCS, parser.next().replace(',', ' ').trim());
+
+ return position;
+ }
+
+
+ private Position decodeAlternative(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ Parser parser = new Parser(PATTERN_ALT, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.set(Position.KEY_EVENT, parser.next());
+ position.set("sensorId", parser.next());
+ position.set("sensorVoltage", parser.nextDouble());
+
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.HMS_DMY));
+
+ position.set(Position.KEY_RSSI, parser.nextInt());
+
+ position.setValid(parser.nextInt() > 0);
+ position.setLatitude(parser.nextDouble());
+ position.setLongitude(parser.nextDouble());
+ position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
+ position.setCourse(parser.nextInt());
+ position.setAltitude(parser.nextInt());
+
+ position.set(Position.KEY_HDOP, parser.nextDouble());
+ position.set(Position.KEY_SATELLITES, parser.nextInt());
+ position.set(Position.KEY_IGNITION, parser.nextInt() > 0);
+ position.set(Position.KEY_CHARGE, parser.nextInt() > 0);
+ position.set("error", parser.next());
+
+ return position;
+ }
+
+ private Position decodePhoto(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ String imei = sentence.substring(5, 5 + 15);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(
+ sentence.substring(24, sentence.endsWith(";") ? sentence.length() - 1 : sentence.length())));
+ int index = buf.readUnsignedShortLE();
+ photo.writeBytes(buf, buf.readerIndex() + 2, buf.readableBytes() - 4);
+
+ if (index + 1 >= photoPackets) {
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ getLastLocation(position, null);
+
+ try {
+ position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(imei, photo, "jpg"));
+ } finally {
+ photoPackets = 0;
+ photo.release();
+ photo = null;
+ }
+
+ return position;
+ } else {
+ return null;
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+
+ if (sentence.contains("imei:") && sentence.length() <= 30) {
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage("LOAD", remoteAddress));
+ Matcher matcher = Pattern.compile("imei:(\\d+),").matcher(sentence);
+ if (matcher.find()) {
+ getDeviceSession(channel, remoteAddress, matcher.group(1));
+ }
+ }
+ return null;
+ }
+
+ if (!sentence.isEmpty() && Character.isDigit(sentence.charAt(0))) {
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage("ON", remoteAddress));
+ }
+ int start = sentence.indexOf("imei:");
+ if (start >= 0) {
+ sentence = sentence.substring(start);
+ } else {
+ return null;
+ }
+ }
+
+ if (sentence.substring(21, 21 + 2).equals("vr")) {
+ return decodePhoto(channel, remoteAddress, sentence);
+ } else if (sentence.substring(21, 21 + 3).contains("OBD")) {
+ return decodeObd(channel, remoteAddress, sentence);
+ } else if (sentence.endsWith("*")) {
+ return decodeAlternative(channel, remoteAddress, sentence);
+ } else {
+ return decodeRegular(channel, remoteAddress, sentence);
+ }
+ }
+
+}