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authoranton2920 <anton2920@gmail.com>2022-09-05 10:35:17 +0100
committeranton2920 <anton2920@gmail.com>2022-09-07 09:48:46 +0100
commit3899a7627ca99ce10f9f26a8f19477639510e298 (patch)
tree3d88a989dfd47374520027fdc575104f0b386900 /src/main/java
parent210e2cd641bf89d9b86d247a237739d026208bcf (diff)
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Implemented basic REGULAR -> SYS -> GPS parsing
Diffstat (limited to 'src/main/java')
-rw-r--r--src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java273
1 files changed, 271 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java b/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
index f6251d6c2..89303d1b1 100644
--- a/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
@@ -1,18 +1,287 @@
package org.traccar.protocol;
+import com.google.common.primitives.Doubles;
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
+import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
import org.traccar.BaseProtocolDecoder;
import org.traccar.Protocol;
+import org.traccar.model.Position;
+import org.traccar.session.ConnectionManager;
+import org.traccar.session.DeviceSession;
import java.net.SocketAddress;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
public class G1rusProtocolDecoder extends BaseProtocolDecoder {
public G1rusProtocolDecoder(Protocol protocol) {
super(protocol);
}
+ private static final Logger LOGGER = LoggerFactory.getLogger(ConnectionManager.class);
+
+ /* Constants */
+ private static final int G1RUS_HEAD_TAIL = 0xF8;
+
+ private static final int G1RUS_TYPE_HEARTBEAT = 0;
+
+ private static final int G1RUS_TYPE_BCD_MASK = 0b00111111;
+ private static final int G1RUS_TYPE_REGULAR = 1;
+ private static final int G1RUS_TYPE_SMS_FORWARD = 2;
+ private static final int G1RUS_TYPE_SERIAL_PASS_THROUGH = 3;
+ private static final int G1RUS_TYPE_MIXED = 4;
+
+ private static final int G1RUS_TYPE_EVENT_MASK = 0b01000000;
+ private static final int G1RUS_TYPE_NON_EVENT = 0;
+ private static final int G1RUS_TYPE_EVENT = 1;
+
+ private static final int G1RUS_TYPE_IMEI_MASK = 0b10000000;
+ private static final int G1RUS_TYPE_IMEI_LONG = 0;
+ private static final int G1RUS_TYPE_IMEI_SHORT = 1;
+
+ private static final int G1RUS_DATA_SYS_MASK = 0b00000001;
+ private static final int G1RUS_DATA_GPS_MASK = 0b00000010;
+ private static final int G1RUS_DATA_GSM_MASK = 0b00000100;
+ private static final int G1RUS_DATA_COT_MASK = 0b00001000;
+ private static final int G1RUS_DATA_ADC_MASK = 0b00010000;
+ private static final int G1RUS_DATA_DTT_MASK = 0b00100000;
+ /* Reserved */
+ private static final int G1RUS_DATA_ETD_MASK = 0b10000000;
+
+ private static final int G1RUS_GPS_SIGN_MASK = 0b00000001;
+ private static final int G1RUS_GPS_POS_MASK = 0b00000010;
+ private static final int G1RUS_GPS_SPD_MASK = 0b00000100;
+ private static final int G1RUS_GPS_AZTH_MASK = 0b00001000;
+ private static final int G1RUS_GPS_ALT_MASK = 0b00010000;
+ private static final int G1RUS_GPS_HDOP_MASK = 0b00100000;
+ private static final int G1RUS_GPS_VDOP_MASK = 0b01000000;
+ private static final int G1RUS_GPS_STAT_MASK = 0b10000000;
+
+
+ private void decodeSYSSub(ByteBuf buf) {
+ LOGGER.info("<SYS>");
+
+ buf.skipBytes(1); /* Total length */
+
+ /* NOTE: assuming order:
+ * Device name -> Firmware version -> Hardware version.
+ * TODO: actually check it.
+ */
+
+ /* Device name */
+ byte devNameLen = (byte) buf.readUnsignedByte();
+ byte[] devName = new byte[devNameLen & 0xF];
+ buf.readBytes(devName);
+ String devNameString = new String(devName);
+ LOGGER.info("Device name: " + devNameString);
+
+ /* Firmware version */
+ byte firmwareLen = (byte) buf.readUnsignedByte();
+ byte[] firmware = new byte[firmwareLen & 0xF];
+ buf.readBytes(firmware);
+ String firmwareString = new String(firmware);
+ LOGGER.info("Firmware version: " + firmwareString);
+
+ /* Hardware version */
+ byte hardwareLen = (byte) buf.readUnsignedByte();
+ byte[] hardware = new byte[hardwareLen & 0xF];
+ buf.readBytes(hardware);
+ String hardwareString = new String(hardware);
+ LOGGER.info("Hardware version: " + hardwareString);
+
+ LOGGER.info("</SYS>");
+ }
+
+
+ private void decodeGPSSub(ByteBuf buf, Position position) {
+ LOGGER.info("<GPS>");
+
+ buf.skipBytes(1); /* Total length */
+
+ short subMask = (short) buf.readUnsignedShort();
+ if ((subMask & G1RUS_GPS_SIGN_MASK) == G1RUS_GPS_SIGN_MASK) {
+ buf.skipBytes(1);
+ }
+ if ((subMask & G1RUS_GPS_POS_MASK) == G1RUS_GPS_POS_MASK) {
+ byte[] pos_buf = new byte[4];
+ buf.readBytes(pos_buf);
+ position.setLatitude((float) Ints.fromByteArray(pos_buf) / 1000000);
+ LOGGER.info("Latitude: " + position.getLatitude());
+
+ buf.readBytes(pos_buf);
+ position.setLongitude((float) Ints.fromByteArray(pos_buf) / 1000000);
+ LOGGER.info("Longitude: " + position.getLongitude());
+ }
+ if ((subMask & G1RUS_GPS_SPD_MASK) == G1RUS_GPS_SPD_MASK) {
+ position.setSpeed(buf.readUnsignedShort());
+ LOGGER.info("Speed: " + position.getSpeed());
+ }
+ if ((subMask & G1RUS_GPS_AZTH_MASK) == G1RUS_GPS_AZTH_MASK) {
+ position.setCourse(buf.readUnsignedShort());
+ LOGGER.info("Course: " + position.getCourse());
+ }
+ if ((subMask & G1RUS_GPS_ALT_MASK) == G1RUS_GPS_ALT_MASK) {
+ position.setAltitude(buf.readUnsignedShort());
+ LOGGER.info("Altitude: " + position.getAltitude());
+ }
+ if ((subMask & G1RUS_GPS_HDOP_MASK) == G1RUS_GPS_HDOP_MASK) {
+ buf.skipBytes(2);
+ }
+ if ((subMask & G1RUS_GPS_VDOP_MASK) == G1RUS_GPS_VDOP_MASK) {
+ buf.skipBytes(2);
+ }
+
+ LOGGER.info("</GPS>");
+ }
+
+
+ private void decodeADCSub(ByteBuf buf, Position position) {
+
+ }
+
+
+ private Position decodeRegular(Channel channel, SocketAddress remoteAddress, ByteBuf buf, long imei, byte packetType) {
+ int timestamp_ = buf.readInt();
+ long timestamp = (946684800 + timestamp_) * 1000L; /* Convert received time to proper UNIX timestamp */
+ LOGGER.info("Date and time: " + new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date(timestamp)));
+
+ if ((packetType & G1RUS_TYPE_EVENT_MASK) != G1RUS_TYPE_NON_EVENT) {
+ buf.skipBytes(1); /* Event ID */
+ }
+
+ DeviceSession deviceSession = null;
+ Position position = null;
+
+ short dataUploadingMask = (short) buf.readUnsignedShort();
+ if ((dataUploadingMask & G1RUS_DATA_SYS_MASK) == G1RUS_DATA_SYS_MASK) {
+ decodeSYSSub(buf);
+ }
+ if ((dataUploadingMask & G1RUS_DATA_GPS_MASK) == G1RUS_DATA_GPS_MASK) {
+ deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(imei));
+ if (deviceSession == null) {
+ return null;
+ }
+ position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setTime(new Date(timestamp));
+
+ decodeGPSSub(buf, position);
+ }
+ if ((dataUploadingMask & G1RUS_DATA_GSM_MASK) == G1RUS_DATA_GSM_MASK) {
+ buf.skipBytes(buf.readUnsignedByte());
+ }
+ if ((dataUploadingMask & G1RUS_DATA_COT_MASK) == G1RUS_DATA_COT_MASK) {
+ buf.skipBytes(buf.readUnsignedByte());
+ }
+ if ((dataUploadingMask & G1RUS_DATA_ADC_MASK) == G1RUS_DATA_ADC_MASK) {
+ /*if (deviceSession == null) {
+ return null;
+ }*/
+
+ buf.skipBytes(buf.readUnsignedByte());
+ // decodeADCSub(buf, position);
+ }
+ if ((dataUploadingMask & G1RUS_DATA_DTT_MASK) == G1RUS_DATA_DTT_MASK) {
+ buf.skipBytes(buf.readUnsignedByte());
+ }
+ if ((dataUploadingMask & G1RUS_DATA_ETD_MASK) == G1RUS_DATA_ETD_MASK) {
+ buf.skipBytes(buf.readUnsignedByte());
+ }
+
+ return position;
+ }
+
+
+ private Object decodeSMSForward(ByteBuf buf) {
+ return null;
+ }
+
+
+ private Object decodeSerialPassThrough(ByteBuf buf) {
+ return null;
+ }
+
+
+ private void printPacketType(byte packetType) {
+ LOGGER.info("Packet type: " + (packetType == G1RUS_TYPE_HEARTBEAT ? "HEARTBEAT" :
+ "[" + ((packetType & G1RUS_TYPE_IMEI_MASK) == G1RUS_TYPE_IMEI_LONG ? "IMEI_LONG" : "IMEI_SHORT") + "]" +
+ "[" + ((packetType & G1RUS_TYPE_EVENT_MASK) == G1RUS_TYPE_NON_EVENT ? "NON-EVENT" : "EVENT") + "]" +
+ "[" + ((packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_REGULAR ? "REGULAR" : (packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_SMS_FORWARD ? "SMS FORWARD" : (packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_SERIAL_PASS_THROUGH ? "PASS THROUGH" : (packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_MIXED ? "MIXED PACKED" : "RESERVED/INVALID") + "]"));
+ }
+
+
@Override
- protected Object decode(
- Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+ protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.skipBytes(1); /* Head */
+
+ LOGGER.info("Protocol version: " + buf.readUnsignedByte());
+
+ byte packetType = (byte) buf.readUnsignedByte();
+ printPacketType(packetType);
+
+ byte[] imei = new byte[8];
+ buf.readBytes(imei, 0, 7);
+ long imei_long = Longs.fromByteArray(imei);
+ LOGGER.info("IMEI: " + imei_long);
+
+ List<Position> positions = null;
+
+ if (packetType == G1RUS_TYPE_HEARTBEAT) {
+ return null;
+ } else if ((packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_REGULAR) {
+ positions = new LinkedList<>();
+ Position position = decodeRegular(channel, remoteAddress, buf, imei_long, packetType);
+ if (position != null) {
+ positions.add(position);
+ }
+ } else if ((packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_SMS_FORWARD) {
+ return decodeSMSForward(buf);
+ } else if ((packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_SERIAL_PASS_THROUGH) {
+ return decodeSerialPassThrough(buf);
+ } else if ((packetType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_MIXED) {
+ positions = new LinkedList<>();
+
+ while (buf.readableBytes() > 3) {
+ short subPacketLength = (short) buf.readUnsignedShort();
+ byte subPacketType = (byte) buf.readUnsignedByte();
+ printPacketType(subPacketType);
+
+ if ((subPacketType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_REGULAR) {
+ Position position = decodeRegular(channel, remoteAddress, buf, imei_long, packetType);
+ if (position != null) {
+ positions.add(position);
+ }
+ } else {
+ try {
+ buf.skipBytes(subPacketLength - 1);
+ } catch (Exception e) {
+ return positions;
+ }
+ }
+ /* else if ((subPacketType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_SMS_FORWARD) {
+ buf.skipBytes(subPacketLength - 1);
+ *//*decodeSMSForward(buf);*//*
+ } else if ((subPacketType & G1RUS_TYPE_BCD_MASK) == G1RUS_TYPE_SERIAL_PASS_THROUGH) {
+ buf.skipBytes(subPacketLength - 1);
+ *//*decodeSerialPassThrough(buf);*//*
+ }*/
+ }
+ } else {
+ LOGGER.error("Unknown packet type!");
+ }
+
+ buf.skipBytes(2); /* CRC */ /* TODO: actually check it */
+ // buf.skipBytes(1); /* Tail */
+ byte tail = (byte) buf.readUnsignedByte();
+
+ return positions;
}
}