diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java b/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java new file mode 100644 index 000000000..2a1db2e32 --- /dev/null +++ b/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java @@ -0,0 +1,441 @@ +/* + * Copyright 2014 - 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.ByteBufUtil; +import io.netty.buffer.Unpooled; +import io.netty.channel.Channel; +import io.netty.channel.socket.DatagramChannel; +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.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.nio.charset.StandardCharsets; +import java.util.Date; +import java.util.regex.Pattern; + +public class EelinkProtocolDecoder extends BaseProtocolDecoder { + + public EelinkProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_LOGIN = 0x01; + public static final int MSG_GPS = 0x02; + public static final int MSG_HEARTBEAT = 0x03; + public static final int MSG_ALARM = 0x04; + public static final int MSG_STATE = 0x05; + public static final int MSG_SMS = 0x06; + public static final int MSG_OBD = 0x07; + public static final int MSG_DOWNLINK = 0x80; + public static final int MSG_DATA = 0x81; + + public static final int MSG_NORMAL = 0x12; + public static final int MSG_WARNING = 0x14; + public static final int MSG_REPORT = 0x15; + public static final int MSG_COMMAND = 0x16; + public static final int MSG_OBD_DATA = 0x17; + public static final int MSG_OBD_BODY = 0x18; + public static final int MSG_OBD_CODE = 0x19; + public static final int MSG_CAMERA_INFO = 0x1E; + public static final int MSG_CAMERA_DATA = 0x1F; + + private String decodeAlarm(Short value) { + switch (value) { + case 0x01: + return Position.ALARM_POWER_OFF; + case 0x02: + return Position.ALARM_SOS; + case 0x03: + return Position.ALARM_LOW_BATTERY; + case 0x04: + return Position.ALARM_VIBRATION; + case 0x08: + case 0x09: + return Position.ALARM_GPS_ANTENNA_CUT; + case 0x81: + return Position.ALARM_LOW_SPEED; + case 0x82: + return Position.ALARM_OVERSPEED; + case 0x83: + return Position.ALARM_GEOFENCE_ENTER; + case 0x84: + return Position.ALARM_GEOFENCE_EXIT; + case 0x85: + return Position.ALARM_ACCIDENT; + case 0x86: + return Position.ALARM_FALL_DOWN; + default: + return null; + } + } + + private void decodeStatus(Position position, int status) { + if (BitUtil.check(status, 1)) { + position.set(Position.KEY_IGNITION, BitUtil.check(status, 2)); + } + if (BitUtil.check(status, 3)) { + position.set(Position.KEY_ARMED, BitUtil.check(status, 4)); + } + if (BitUtil.check(status, 5)) { + position.set(Position.KEY_BLOCKED, !BitUtil.check(status, 6)); + } + if (BitUtil.check(status, 7)) { + position.set(Position.KEY_CHARGE, BitUtil.check(status, 8)); + } + position.set(Position.KEY_STATUS, status); + } + + private Position decodeOld(DeviceSession deviceSession, ByteBuf buf, int type, int index) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_INDEX, index); + + position.setTime(new Date(buf.readUnsignedInt() * 1000)); + position.setLatitude(buf.readInt() / 1800000.0); + position.setLongitude(buf.readInt() / 1800000.0); + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte())); + position.setCourse(buf.readUnsignedShort()); + + position.setNetwork(new Network(CellTower.from( + buf.readUnsignedShort(), buf.readUnsignedShort(), buf.readUnsignedShort(), buf.readUnsignedMedium()))); + + position.setValid((buf.readUnsignedByte() & 0x01) != 0); + + if (type == MSG_GPS) { + + if (buf.readableBytes() >= 2) { + decodeStatus(position, buf.readUnsignedShort()); + } + + if (buf.readableBytes() >= 2 * 4) { + + position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001); + + position.set(Position.KEY_RSSI, buf.readUnsignedShort()); + + position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort()); + position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShort()); + + } + + } else if (type == MSG_ALARM) { + + position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte())); + + } else if (type == MSG_STATE) { + + int statusType = buf.readUnsignedByte(); + + position.set(Position.KEY_EVENT, statusType); + + if (statusType == 0x01 || statusType == 0x02 || statusType == 0x03) { + buf.readUnsignedInt(); // device time + if (buf.readableBytes() >= 2) { + decodeStatus(position, buf.readUnsignedShort()); + } + } + + } + + return position; + } + + private Position decodeNew(DeviceSession deviceSession, ByteBuf buf, int type, int index) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_INDEX, index); + + position.setTime(new Date(buf.readUnsignedInt() * 1000)); + + int flags = buf.readUnsignedByte(); + + if (BitUtil.check(flags, 0)) { + position.setLatitude(buf.readInt() / 1800000.0); + position.setLongitude(buf.readInt() / 1800000.0); + position.setAltitude(buf.readShort()); + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort())); + position.setCourse(buf.readUnsignedShort()); + position.set(Position.KEY_SATELLITES, buf.readUnsignedByte()); + } else { + getLastLocation(position, position.getDeviceTime()); + } + + if (BitUtil.check(flags, 1)) { + position.setNetwork(new Network(CellTower.from( + buf.readUnsignedShort(), buf.readUnsignedShort(), + buf.readUnsignedShort(), buf.readUnsignedInt(), buf.readUnsignedByte()))); + } + + if (BitUtil.check(flags, 2)) { + buf.skipBytes(7); // bsid1 + } + + if (BitUtil.check(flags, 3)) { + buf.skipBytes(7); // bsid2 + } + + if (BitUtil.check(flags, 4)) { + buf.skipBytes(7); // bss0 + } + + if (BitUtil.check(flags, 5)) { + buf.skipBytes(7); // bss1 + } + + if (BitUtil.check(flags, 6)) { + buf.skipBytes(7); // bss2 + } + + if (type == MSG_WARNING) { + + position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte())); + + } else if (type == MSG_REPORT) { + + buf.readUnsignedByte(); // report type + + } + + if (type == MSG_NORMAL || type == MSG_WARNING || type == MSG_REPORT) { + + int status = buf.readUnsignedShort(); + position.setValid(BitUtil.check(status, 0)); + if (BitUtil.check(status, 1)) { + position.set(Position.KEY_IGNITION, BitUtil.check(status, 2)); + } + position.set(Position.KEY_STATUS, status); + + } + + if (type == MSG_NORMAL) { + + if (buf.readableBytes() >= 2) { + position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001); + } + + if (buf.readableBytes() >= 4) { + position.set(Position.PREFIX_ADC + 0, buf.readUnsignedShort()); + position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort()); + } + + if (buf.readableBytes() >= 4) { + position.set(Position.KEY_ODOMETER, buf.readUnsignedInt()); + } + + if (buf.readableBytes() >= 4) { + buf.readUnsignedShort(); // gsm counter + buf.readUnsignedShort(); // gps counter + } + + if (buf.readableBytes() >= 4) { + position.set(Position.KEY_STEPS, buf.readUnsignedShort()); + buf.readUnsignedShort(); // walking time + } + + if (buf.readableBytes() >= 12) { + position.set(Position.PREFIX_TEMP + 1, buf.readUnsignedShort() / 256.0); + position.set("humidity", buf.readUnsignedShort() * 0.1); + position.set("illuminance", buf.readUnsignedInt() / 256.0); + position.set("co2", buf.readUnsignedInt()); + } + + if (buf.readableBytes() >= 2) { + position.set(Position.PREFIX_TEMP + 2, buf.readShort() / 16.0); + } + + } + + return position; + } + + private static final Pattern PATTERN = new PatternBuilder() + .text("Lat:") + .number("([NS])(d+.d+)") // latitude + .any() + .text("Lon:") + .number("([EW])(d+.d+)") // longitude + .any() + .text("Course:") + .number("(d+.d+)") // course + .any() + .text("Speed:") + .number("(d+.d+)") // speed + .any() + .expression("Date ?Time:") + .number("(dddd)-(dd)-(dd) ") // date + .number("(dd):(dd):(dd)") // time + .compile(); + + private Position decodeResult(DeviceSession deviceSession, ByteBuf buf, int index) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_INDEX, index); + + buf.readUnsignedByte(); // type + buf.readUnsignedInt(); // uid + + String sentence = buf.toString(StandardCharsets.UTF_8); + + Parser parser = new Parser(PATTERN, sentence); + if (parser.matches()) { + + position.setValid(true); + position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG)); + position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG)); + position.setCourse(parser.nextDouble()); + position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble())); + position.setTime(parser.nextDateTime()); + + } else { + + getLastLocation(position, null); + + position.set(Position.KEY_RESULT, sentence); + + } + + return position; + } + + private Position decodeObd(DeviceSession deviceSession, ByteBuf buf, int index) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + getLastLocation(position, new Date(buf.readUnsignedInt() * 1000)); + + while (buf.readableBytes() > 0) { + int pid = buf.readUnsignedByte(); + int value = buf.readInt(); + switch (pid) { + case 0x89: + position.set(Position.KEY_FUEL_CONSUMPTION, value); + break; + case 0x8a: + position.set(Position.KEY_ODOMETER, value * 1000L); + break; + case 0x8b: + position.set(Position.KEY_FUEL_LEVEL, value / 10); + break; + default: + break; + } + } + + return position; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + String uniqueId = null; + DeviceSession deviceSession; + + if (buf.getByte(0) == 'E' && buf.getByte(1) == 'L') { + buf.skipBytes(2 + 2 + 2); // udp header + uniqueId = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1); + deviceSession = getDeviceSession(channel, remoteAddress, uniqueId); + } else { + deviceSession = getDeviceSession(channel, remoteAddress); + } + + buf.skipBytes(2); // header + int type = buf.readUnsignedByte(); + buf.readShort(); // length + int index = buf.readUnsignedShort(); + + if (type != MSG_GPS && type != MSG_DATA) { + ByteBuf content = Unpooled.buffer(); + if (type == MSG_LOGIN) { + content.writeInt((int) (System.currentTimeMillis() / 1000)); + content.writeByte(1); // protocol version + content.writeByte(0); // action mask + } + ByteBuf response = EelinkProtocolEncoder.encodeContent( + channel instanceof DatagramChannel, uniqueId, type, index, content); + content.release(); + if (channel != null) { + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + } + + if (type == MSG_LOGIN) { + + if (deviceSession == null) { + getDeviceSession(channel, remoteAddress, ByteBufUtil.hexDump(buf.readSlice(8)).substring(1)); + } + + } else { + + if (deviceSession == null) { + return null; + } + + if (type == MSG_GPS || type == MSG_ALARM || type == MSG_STATE || type == MSG_SMS) { + + return decodeOld(deviceSession, buf, type, index); + + } else if (type >= MSG_NORMAL && type <= MSG_OBD_CODE) { + + return decodeNew(deviceSession, buf, type, index); + + } else if (type == MSG_HEARTBEAT && buf.readableBytes() >= 2) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + getLastLocation(position, null); + + decodeStatus(position, buf.readUnsignedShort()); + + return position; + + } else if (type == MSG_OBD) { + + return decodeObd(deviceSession, buf, index); + + } else if (type == MSG_DOWNLINK) { + + return decodeResult(deviceSession, buf, index); + + } + + } + + return null; + } + +} |