/* * Copyright 2013 - 2024 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.channel.Channel; import org.traccar.BaseProtocolDecoder; import org.traccar.model.CellTower; import org.traccar.session.DeviceSession; import org.traccar.Protocol; import org.traccar.helper.DateBuilder; import org.traccar.helper.Parser; import org.traccar.helper.PatternBuilder; import org.traccar.model.Network; import org.traccar.model.Position; import org.traccar.model.WifiAccessPoint; import java.net.SocketAddress; import java.util.LinkedList; import java.util.List; import java.util.regex.Pattern; public class Tlt2hProtocolDecoder extends BaseProtocolDecoder { public Tlt2hProtocolDecoder(Protocol protocol) { super(protocol); } private static final Pattern PATTERN_HEADER = new PatternBuilder() .number("#(d+)") // imei .expression("#[^#]*") // user .number("#d*") // password .groupBegin() .number("#([01])") // door .number("#(d+)") // fuel voltage .number("#(d+)") // power .number("#(d+)") // battery .number("#(d+)") // temperature .groupEnd("?") .expression("#([^#]+)") // status .number("#d+") // number of records .compile(); private static final Pattern PATTERN_POSITION = new PatternBuilder() .text("#") .number("(?:(dd|dddd)|x*)") // cell or voltage .groupBegin() .text("#") .groupBegin() .number("(d+),") // mcc .number("(d+),") // mnc .number("(x+),") // lac .number("(x+)") // cell id .groupEnd("?") .groupEnd("?") .text("$GPRMC,") .number("(?:(dd)(dd)(dd).d+)?,") // time (hhmmss.sss) .expression("([AVL]),") // validity .groupBegin() .number("(d+)(dd.d+),") // latitude .expression("([NS]),") .number("(d+)(dd.d+),") // longitude .number("([EW]),") .number("(d+.?d*)?,") // speed .number("(d+.?d*)?,") // course .number("(dd)(dd)(dd)") // date (ddmmyy) .groupEnd("?") .any() .compile(); private static final Pattern PATTERN_WIFI = new PatternBuilder() .text("#") .number("(?:(dd|dddd)|x+)") // cell or voltage .expression("#?") .groupBegin() .number("(d+),") // mcc .number("(d+),") // mnc .number("(x+),") // lac .number("(x+)") // cell id .groupEnd("?") .text("$WIFI,") .number("(dd)(dd)(dd).d+,") // time (hhmmss.sss) .expression("[AVL],") // validity .expression("(.*)") // access points .number("(dd)(dd)(dd)") // date (ddmmyy) .text("*") .number("xx") // checksum .compile(); private void decodeStatus(Position position, String status) { switch (status) { case "AUTOSTART", "AUTO" -> position.set(Position.KEY_IGNITION, true); case "AUTOSTOP", "AUTOLOW" -> position.set(Position.KEY_IGNITION, false); case "TOWED" -> position.set(Position.KEY_ALARM, Position.ALARM_TOW); case "SHAKE" -> position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION); case "SOS" -> position.set(Position.KEY_ALARM, Position.ALARM_SOS); case "DEF" -> position.set(Position.KEY_ALARM, Position.ALARM_POWER_CUT); case "BLP" -> position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY); case "CLP" -> position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER); case "OS" -> position.set(Position.KEY_ALARM, Position.ALARM_GEOFENCE_EXIT); case "RS" -> position.set(Position.KEY_ALARM, Position.ALARM_GEOFENCE_ENTER); case "OVERSPEED" -> position.set(Position.KEY_ALARM, Position.ALARM_OVERSPEED); } } @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { String sentence = (String) msg; sentence = sentence.trim(); String header = sentence.substring(0, sentence.indexOf('\r')); Parser parser = new Parser(PATTERN_HEADER, header); if (!parser.matches()) { return null; } DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); if (deviceSession == null) { return null; } Boolean door = null; Double adc = null; Double power = null; Double battery = null; Double temperature = null; if (parser.hasNext(5)) { door = parser.nextInt() == 1; adc = parser.nextInt() * 0.1; power = parser.nextInt() * 0.1; battery = parser.nextInt() * 0.1; temperature = parser.nextInt() * 0.1; } String status = parser.next(); String[] messages = sentence.substring(sentence.indexOf('\n') + 1).split("\r\n"); List positions = new LinkedList<>(); for (String message : messages) { Position position = new Position(getProtocolName()); position.setDeviceId(deviceSession.getDeviceId()); if (message.contains("$GPRMC")) { parser = new Parser(PATTERN_POSITION, message); if (parser.matches()) { if (parser.hasNext()) { int voltage = parser.nextInt(); position.set(Position.KEY_BATTERY, voltage > 100 ? voltage * 0.001 : voltage * 0.1); } if (parser.hasNext(4)) { Network network = new Network(); network.addCellTower(CellTower.from( parser.nextInt(), parser.nextInt(), parser.nextHexInt(), parser.nextHexInt())); position.setNetwork(network); } DateBuilder dateBuilder = new DateBuilder(); if (parser.hasNext(3)) { dateBuilder.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt()); } position.setValid(parser.next().equals("A")); if (parser.hasNext()) { position.setLatitude(parser.nextCoordinate()); position.setLongitude(parser.nextCoordinate()); position.setSpeed(parser.nextDouble(0)); position.setCourse(parser.nextDouble(0)); dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt()); position.setTime(dateBuilder.getDate()); } else { getLastLocation(position, null); } } else { continue; } } else if (message.contains("$WIFI")) { parser = new Parser(PATTERN_WIFI, message); if (parser.matches()) { if (parser.hasNext()) { int voltage = parser.nextInt(); position.set(Position.KEY_BATTERY, voltage > 100 ? voltage * 0.001 : voltage * 0.1); } Network network = new Network(); if (parser.hasNext(4)) { network.addCellTower(CellTower.from( parser.nextInt(), parser.nextInt(), parser.nextHexInt(), parser.nextHexInt())); } DateBuilder dateBuilder = new DateBuilder() .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt()); String[] values = parser.next().split(","); for (int i = 0; i < values.length / 2; i++) { String mac = values[i * 2 + 1].replaceAll("(..)", "$1:").substring(0, 17); network.addWifiAccessPoint(WifiAccessPoint.from(mac, Integer.parseInt(values[i * 2]))); } position.setNetwork(network); dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt()); getLastLocation(position, dateBuilder.getDate()); } else { continue; } } else { getLastLocation(position, null); } position.set(Position.KEY_DOOR, door); position.set(Position.PREFIX_ADC + 1, adc); position.set(Position.KEY_POWER, power); position.set(Position.KEY_BATTERY, battery); position.set(Position.PREFIX_TEMP + 1, temperature); decodeStatus(position, status); positions.add(position); } return positions.isEmpty() ? null : positions; } }