1 files changed, 235 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java b/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
new file mode 100644
index 000000000..6e2e1377b
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
@@ -0,0 +1,235 @@
+/*
+ * Copyright 2015 - 2019 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 org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BcdUtil;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedList;
+import java.util.List;
+
+public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
+
+    public HuabaoProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_GENERAL_RESPONSE = 0x8001;
+    public static final int MSG_TERMINAL_REGISTER = 0x0100;
+    public static final int MSG_TERMINAL_REGISTER_RESPONSE = 0x8100;
+    public static final int MSG_TERMINAL_CONTROL = 0x8105;
+    public static final int MSG_TERMINAL_AUTH = 0x0102;
+    public static final int MSG_LOCATION_REPORT = 0x0200;
+    public static final int MSG_LOCATION_BATCH = 0x0704;
+    public static final int MSG_OIL_CONTROL = 0XA006;
+
+    public static final int RESULT_SUCCESS = 0;
+
+    public static ByteBuf formatMessage(int type, ByteBuf id, ByteBuf data) {
+        ByteBuf buf = Unpooled.buffer();
+        buf.writeByte(0x7e);
+        buf.writeShort(type);
+        buf.writeShort(data.readableBytes());
+        buf.writeBytes(id);
+        buf.writeShort(1); // index
+        buf.writeBytes(data);
+        data.release();
+        buf.writeByte(Checksum.xor(buf.nioBuffer(1, buf.readableBytes() - 1)));
+        buf.writeByte(0x7e);
+        return buf;
+    }
+
+    private void sendGeneralResponse(
+            Channel channel, SocketAddress remoteAddress, ByteBuf id, int type, int index) {
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            response.writeShort(index);
+            response.writeShort(type);
+            response.writeByte(RESULT_SUCCESS);
+            channel.writeAndFlush(new NetworkMessage(
+                    formatMessage(MSG_GENERAL_RESPONSE, id, response), remoteAddress));
+        }
+    }
+
+    private String decodeAlarm(long value) {
+        if (BitUtil.check(value, 0)) {
+            return Position.ALARM_SOS;
+        }
+        if (BitUtil.check(value, 1)) {
+            return Position.ALARM_OVERSPEED;
+        }
+        if (BitUtil.check(value, 5)) {
+            return Position.ALARM_GPS_ANTENNA_CUT;
+        }
+        if (BitUtil.check(value, 4) || BitUtil.check(value, 9)
+                || BitUtil.check(value, 10) || BitUtil.check(value, 11)) {
+            return Position.ALARM_FAULT;
+        }
+        if (BitUtil.check(value, 8)) {
+            return Position.ALARM_POWER_OFF;
+        }
+        if (BitUtil.check(value, 20)) {
+            return Position.ALARM_GEOFENCE;
+        }
+        if (BitUtil.check(value, 29)) {
+            return Position.ALARM_ACCIDENT;
+        }
+        return null;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.readUnsignedByte(); // start marker
+        int type = buf.readUnsignedShort();
+        buf.readUnsignedShort(); // body length
+        ByteBuf id = buf.readSlice(6); // phone number
+        int index = buf.readUnsignedShort();
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, ByteBufUtil.hexDump(id));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (deviceSession.getTimeZone() == null) {
+            deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId(), "GMT+8"));
+        }
+
+        if (type == MSG_TERMINAL_REGISTER) {
+
+            if (channel != null) {
+                ByteBuf response = Unpooled.buffer();
+                response.writeShort(index);
+                response.writeByte(RESULT_SUCCESS);
+                response.writeBytes("authentication".getBytes(StandardCharsets.US_ASCII));
+                channel.writeAndFlush(new NetworkMessage(
+                        formatMessage(MSG_TERMINAL_REGISTER_RESPONSE, id, response), remoteAddress));
+            }
+
+        } else if (type == MSG_TERMINAL_AUTH) {
+
+            sendGeneralResponse(channel, remoteAddress, id, type, index);
+
+        } else if (type == MSG_LOCATION_REPORT) {
+
+            return decodeLocation(deviceSession, buf);
+
+        } else if (type == MSG_LOCATION_BATCH) {
+
+            return decodeLocationBatch(deviceSession, buf);
+
+        }
+
+        return null;
+    }
+
+    private Position decodeLocation(DeviceSession deviceSession, ByteBuf buf) {
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedInt()));
+
+        int flags = buf.readInt();
+
+        position.set(Position.KEY_IGNITION, BitUtil.check(flags, 0));
+
+        position.setValid(BitUtil.check(flags, 1));
+
+        double lat = buf.readUnsignedInt() * 0.000001;
+        double lon = buf.readUnsignedInt() * 0.000001;
+
+        if (BitUtil.check(flags, 2)) {
+            position.setLatitude(-lat);
+        } else {
+            position.setLatitude(lat);
+        }
+
+        if (BitUtil.check(flags, 3)) {
+            position.setLongitude(-lon);
+        } else {
+            position.setLongitude(lon);
+        }
+
+        position.setAltitude(buf.readShort());
+        position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort() * 0.1));
+        position.setCourse(buf.readUnsignedShort());
+
+        DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
+                .setYear(BcdUtil.readInteger(buf, 2))
+                .setMonth(BcdUtil.readInteger(buf, 2))
+                .setDay(BcdUtil.readInteger(buf, 2))
+                .setHour(BcdUtil.readInteger(buf, 2))
+                .setMinute(BcdUtil.readInteger(buf, 2))
+                .setSecond(BcdUtil.readInteger(buf, 2));
+        position.setTime(dateBuilder.getDate());
+
+        while (buf.readableBytes() > 2) {
+            int subtype = buf.readUnsignedByte();
+            int length = buf.readUnsignedByte();
+            switch (subtype) {
+                case 0x01:
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 100);
+                    break;
+                case 0x30:
+                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+                    break;
+                case 0x31:
+                    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+                    break;
+                default:
+                    buf.skipBytes(length);
+                    break;
+            }
+        }
+
+        return position;
+    }
+
+    private List<Position> decodeLocationBatch(DeviceSession deviceSession, ByteBuf buf) {
+
+        List<Position> positions = new LinkedList<>();
+
+        int count = buf.readUnsignedShort();
+        buf.readUnsignedByte(); // location type
+
+        for (int i = 0; i < count; i++) {
+            int endIndex = buf.readUnsignedShort() + buf.readerIndex();
+            positions.add(decodeLocation(deviceSession, buf));
+            buf.readerIndex(endIndex);
+        }
+
+        return positions;
+    }
+
+}