Examples with NetworkMessage org.traccar.NetworkMessage used on opensource projects

Example 21 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class Gt02ProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ByteBuf buf = (ByteBuf) msg;
    // header
    buf.skipBytes(2);
    // size
    buf.readByte();
    Position position = new Position(getProtocolName());
    // Zero for location messages
    int power = buf.readUnsignedByte();
    int gsm = buf.readUnsignedByte();
    String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1);
    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
    if (deviceSession == null) {
        return null;
    }
    position.setDeviceId(deviceSession.getDeviceId());
    position.set(Position.KEY_INDEX, buf.readUnsignedShort());
    int type = buf.readUnsignedByte();
    if (type == MSG_HEARTBEAT) {
        getLastLocation(position, null);
        position.set(Position.KEY_POWER, power);
        position.set(Position.KEY_RSSI, gsm);
        if (channel != null) {
            byte[] response = { 0x54, 0x68, 0x1A, 0x0D, 0x0A };
            channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(response), remoteAddress));
        }
    } else if (type == MSG_DATA) {
        DateBuilder dateBuilder = new DateBuilder().setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()).setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
        position.setTime(dateBuilder.getDate());
        double latitude = buf.readUnsignedInt() / (60.0 * 30000.0);
        double longitude = buf.readUnsignedInt() / (60.0 * 30000.0);
        position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
        position.setCourse(buf.readUnsignedShort());
        // reserved
        buf.skipBytes(3);
        long flags = buf.readUnsignedInt();
        position.setValid(BitUtil.check(flags, 0));
        if (!BitUtil.check(flags, 1)) {
            latitude = -latitude;
        }
        if (!BitUtil.check(flags, 2)) {
            longitude = -longitude;
        }
        position.setLatitude(latitude);
        position.setLongitude(longitude);
    } else if (type == MSG_RESPONSE) {
        getLastLocation(position, null);
        position.set(Position.KEY_RESULT, buf.readSlice(buf.readUnsignedByte()).toString(StandardCharsets.US_ASCII));
    } else {
        return null;
    }
    return position;
}

Example 22 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class Gps103ProtocolDecoder method decode.

@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.startsWith("vr", 21)) {
        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);
    }
}

Example 23 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class NavisProtocolDecoder method sendNtcbReply.

private void sendNtcbReply(Channel channel, ByteBuf data) {
    if (channel != null) {
        ByteBuf header = Unpooled.buffer(16);
        header.writeCharSequence(prefix, StandardCharsets.US_ASCII);
        header.writeIntLE((int) deviceUniqueId);
        header.writeIntLE((int) serverId);
        header.writeShortLE(data.readableBytes());
        header.writeByte(Checksum.xor(data.nioBuffer()));
        header.writeByte(Checksum.xor(header.nioBuffer()));
        channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(header, data), channel.remoteAddress()));
    }
}

Example 24 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class NoranProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ByteBuf buf = (ByteBuf) msg;
    // length
    buf.readUnsignedShortLE();
    int type = buf.readUnsignedShortLE();
    if (type == MSG_SHAKE_HAND && channel != null) {
        ByteBuf response = Unpooled.buffer(13);
        response.writeCharSequence("\r\n*KW", StandardCharsets.US_ASCII);
        response.writeByte(0);
        response.writeShortLE(response.capacity());
        response.writeShortLE(MSG_SHAKE_HAND_RESPONSE);
        // status
        response.writeByte(1);
        response.writeCharSequence("\r\n", StandardCharsets.US_ASCII);
        channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
    } else if (type == MSG_UPLOAD_POSITION || type == MSG_UPLOAD_POSITION_NEW || type == MSG_CONTROL_RESPONSE || type == MSG_ALARM) {
        boolean newFormat = false;
        if (type == MSG_UPLOAD_POSITION && buf.readableBytes() == 48 || type == MSG_ALARM && buf.readableBytes() == 48 || type == MSG_CONTROL_RESPONSE && buf.readableBytes() == 57) {
            newFormat = true;
        }
        Position position = new Position(getProtocolName());
        if (type == MSG_CONTROL_RESPONSE) {
            // GIS ip
            buf.readUnsignedIntLE();
            // GIS port
            buf.readUnsignedIntLE();
        }
        position.setValid(BitUtil.check(buf.readUnsignedByte(), 0));
        short alarm = buf.readUnsignedByte();
        switch(alarm) {
            case 1:
                position.set(Position.KEY_ALARM, Position.ALARM_SOS);
                break;
            case 2:
                position.set(Position.KEY_ALARM, Position.ALARM_OVERSPEED);
                break;
            case 3:
                position.set(Position.KEY_ALARM, Position.ALARM_GEOFENCE_EXIT);
                break;
            case 9:
                position.set(Position.KEY_ALARM, Position.ALARM_POWER_OFF);
                break;
            default:
                break;
        }
        if (newFormat) {
            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedIntLE()));
            position.setCourse(buf.readFloatLE());
        } else {
            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
            position.setCourse(buf.readUnsignedShortLE());
        }
        position.setLongitude(buf.readFloatLE());
        position.setLatitude(buf.readFloatLE());
        if (!newFormat) {
            long timeValue = buf.readUnsignedIntLE();
            DateBuilder dateBuilder = new DateBuilder().setYear((int) BitUtil.from(timeValue, 26)).setMonth((int) BitUtil.between(timeValue, 22, 26)).setDay((int) BitUtil.between(timeValue, 17, 22)).setHour((int) BitUtil.between(timeValue, 12, 17)).setMinute((int) BitUtil.between(timeValue, 6, 12)).setSecond((int) BitUtil.to(timeValue, 6));
            position.setTime(dateBuilder.getDate());
        }
        ByteBuf rawId;
        if (newFormat) {
            rawId = buf.readSlice(12);
        } else {
            rawId = buf.readSlice(11);
        }
        String id = rawId.toString(StandardCharsets.US_ASCII).replaceAll("[^\\p{Print}]", "");
        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
        if (deviceSession == null) {
            return null;
        }
        position.setDeviceId(deviceSession.getDeviceId());
        if (newFormat) {
            DateFormat dateFormat = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
            position.setTime(dateFormat.parse(buf.readSlice(17).toString(StandardCharsets.US_ASCII)));
            buf.readByte();
        }
        if (!newFormat) {
            position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte());
            position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte());
        } else if (type == MSG_UPLOAD_POSITION_NEW) {
            position.set(Position.PREFIX_TEMP + 1, buf.readShortLE());
            position.set(Position.KEY_ODOMETER, buf.readFloatLE());
        }
        return position;
    }
    return null;
}

Example 25 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class OigoProtocolDecoder method decodeMgMessage.

private Position decodeMgMessage(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
    // tag
    buf.readUnsignedByte();
    int flags = buf.getUnsignedByte(buf.readerIndex());
    DeviceSession deviceSession;
    if (BitUtil.check(flags, 6)) {
        // flags
        buf.readUnsignedByte();
        deviceSession = getDeviceSession(channel, remoteAddress);
    } else {
        String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1);
        deviceSession = getDeviceSession(channel, remoteAddress, imei);
    }
    if (deviceSession == null) {
        return null;
    }
    Position position = new Position(getProtocolName());
    position.setDeviceId(deviceSession.getDeviceId());
    // imsi
    buf.skipBytes(8);
    int date = buf.readUnsignedShort();
    DateBuilder dateBuilder = new DateBuilder().setDate(2010 + BitUtil.from(date, 12), BitUtil.between(date, 8, 12), BitUtil.to(date, 8)).setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), 0);
    position.setValid(true);
    position.setLatitude(convertCoordinate(buf.readInt()));
    position.setLongitude(convertCoordinate(buf.readInt()));
    position.setAltitude(UnitsConverter.metersFromFeet(buf.readShort()));
    position.setCourse(buf.readUnsignedShort());
    position.setSpeed(UnitsConverter.knotsFromMph(buf.readUnsignedByte()));
    position.set(Position.KEY_POWER, buf.readUnsignedByte() * 0.1);
    position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte());
    dateBuilder.setSecond(buf.readUnsignedByte());
    position.setTime(dateBuilder.getDate());
    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
    int index = buf.readUnsignedByte();
    position.set(Position.KEY_VERSION_FW, buf.readUnsignedByte());
    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
    position.set(Position.KEY_ODOMETER, (long) (buf.readUnsignedInt() * 1609.34));
    if (channel != null && BitUtil.check(flags, 7)) {
        ByteBuf response = Unpooled.buffer();
        response.writeByte(MSG_ACKNOWLEDGEMENT);
        response.writeByte(index);
        response.writeByte(0x00);
        channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
    }
    return position;
}