aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
blob: 0d574203c853d951ed71856cdee982255e3bd6de (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
/*
 * Copyright 2015 - 2020 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.CellTower;
import org.traccar.model.Network;
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_GENERAL_RESPONSE_2 = 0x4401;
    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_REPORT_2 = 0x5501;
    public static final int MSG_LOCATION_REPORT_BLIND = 0x5502;
    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, boolean shortIndex, ByteBuf data) {
        ByteBuf buf = Unpooled.buffer();
        buf.writeByte(0x7e);
        buf.writeShort(type);
        buf.writeShort(data.readableBytes());
        buf.writeBytes(id);
        if (shortIndex) {
            buf.writeByte(1);
        } else {
            buf.writeShort(1);
        }
        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, false, response), remoteAddress));
        }
    }

    private void sendGeneralResponse2(
            Channel channel, SocketAddress remoteAddress, ByteBuf id, int type) {
        if (channel != null) {
            ByteBuf response = Unpooled.buffer();
            response.writeShort(type);
            response.writeByte(RESULT_SUCCESS);
            channel.writeAndFlush(new NetworkMessage(
                    formatMessage(MSG_GENERAL_RESPONSE_2, id, true, 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, 28)) {
            return Position.ALARM_MOVEMENT;
        }
        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;

        if (buf.getByte(buf.readerIndex()) == '(') {
            return decodeResult(channel, remoteAddress, buf.toString(StandardCharsets.US_ASCII));
        }

        buf.readUnsignedByte(); // start marker
        int type = buf.readUnsignedShort();
        int attribute = buf.readUnsignedShort();
        ByteBuf id = buf.readSlice(6); // phone number
        int index;
        if (type == MSG_LOCATION_REPORT_2 || type == MSG_LOCATION_REPORT_BLIND) {
            index = buf.readUnsignedByte();
        } else {
            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(ByteBufUtil.hexDump(id).getBytes(StandardCharsets.US_ASCII));
                channel.writeAndFlush(new NetworkMessage(
                        formatMessage(MSG_TERMINAL_REGISTER_RESPONSE, id, false, 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_REPORT_2 || type == MSG_LOCATION_REPORT_BLIND) {

            if (BitUtil.check(attribute, 15)) {
                sendGeneralResponse2(channel, remoteAddress, id, type);
            }

            return decodeLocation2(deviceSession, buf, type);

        } else if (type == MSG_LOCATION_BATCH) {

            return decodeLocationBatch(deviceSession, buf);

        }

        return null;
    }

    private Position decodeResult(Channel channel, SocketAddress remoteAddress, String sentence) {
        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession != null) {
            Position position = new Position(getProtocolName());
            position.setDeviceId(deviceSession.getDeviceId());
            getLastLocation(position, null);
            position.set(Position.KEY_RESULT, sentence);
            return position;
        }
        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 status = buf.readInt();

        position.set(Position.KEY_IGNITION, BitUtil.check(status, 0));
        position.set(Position.KEY_BLOCKED, BitUtil.check(status, 10));

        position.setValid(BitUtil.check(status, 1));

        double lat = buf.readUnsignedInt() * 0.000001;
        double lon = buf.readUnsignedInt() * 0.000001;

        if (BitUtil.check(status, 2)) {
            position.setLatitude(-lat);
        } else {
            position.setLatitude(lat);
        }

        if (BitUtil.check(status, 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();
            int endIndex = buf.readerIndex() + length;
            switch (subtype) {
                case 0x01:
                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 100);
                    break;
                case 0x02:
                    position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedShort() * 0.1);
                    break;
                case 0x30:
                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
                    break;
                case 0x31:
                    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
                    break;
                case 0x33:
                    String sentence = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
                    if (sentence.startsWith("*M00")) {
                        String lockStatus = sentence.substring(8, 8 + 7);
                        position.set(Position.KEY_BATTERY, Integer.parseInt(lockStatus.substring(2, 5)) * 0.01);
                    }
                    break;
                case 0x91:
                    position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.1);
                    position.set(Position.KEY_RPM, buf.readUnsignedShort());
                    position.set(Position.KEY_OBD_SPEED, buf.readUnsignedByte());
                    position.set(Position.KEY_THROTTLE, buf.readUnsignedByte() * 100 / 255);
                    position.set(Position.KEY_ENGINE_LOAD, buf.readUnsignedByte() * 100 / 255);
                    position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedByte() - 40);
                    buf.readUnsignedShort();
                    position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort() * 0.01);
                    buf.readUnsignedShort();
                    buf.readUnsignedInt();
                    buf.readUnsignedShort();
                    position.set(Position.KEY_FUEL_USED, buf.readUnsignedShort() * 0.01);
                    break;
                case 0x94:
                    if (length > 0) {
                        position.set(
                                Position.KEY_VIN, buf.readCharSequence(length, StandardCharsets.US_ASCII).toString());
                    }
                    break;
                case 0xD0:
                    long userStatus = buf.readUnsignedInt();
                    if (BitUtil.check(userStatus, 3)) {
                        position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION);
                    }
                    break;
                case 0xD3:
                    position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.1);
                    break;
                case 0xEB:
                    while (buf.readerIndex() < endIndex) {
                        int extendedLength = buf.readUnsignedShort();
                        int extendedType = buf.readUnsignedShort();
                        switch (extendedType) {
                            case 0x0001:
                                position.set("fuel1", buf.readUnsignedShort() * 0.1);
                                buf.readUnsignedByte(); // unused
                                break;
                            case 0x0023:
                                position.set("fuel2", Double.parseDouble(
                                        buf.readCharSequence(6, StandardCharsets.US_ASCII).toString()));
                                break;
                            case 0x00CE:
                                position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
                                break;
                            default:
                                buf.skipBytes(extendedLength - 2);
                                break;
                        }
                    }
                    break;
                default:
                    break;
            }
            buf.readerIndex(endIndex);
        }

        return position;
    }

    private Position decodeLocation2(DeviceSession deviceSession, ByteBuf buf, int type) {

        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        Jt600ProtocolDecoder.decodeBinaryLocation(buf, position);
        position.setValid(type != MSG_LOCATION_REPORT_BLIND);

        position.set(Position.KEY_RSSI, buf.readUnsignedByte());
        position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
        position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 1000L);

        int battery = buf.readUnsignedByte();
        if (battery <= 100) {
            position.set(Position.KEY_BATTERY_LEVEL, battery);
        } else if (battery == 0xAA) {
            position.set(Position.KEY_CHARGE, true);
        }

        position.setNetwork(new Network(CellTower.fromCidLac(buf.readUnsignedInt(), buf.readUnsignedShort())));

        int product = buf.readUnsignedByte();
        int status = buf.readUnsignedShort();
        int alarm = buf.readUnsignedShort();

        if (product == 1 || product == 2) {
            if (BitUtil.check(alarm, 0)) {
                position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
            }
        } else if (product == 3) {
            position.set(Position.KEY_BLOCKED, BitUtil.check(status, 5));
            if (BitUtil.check(alarm, 1)) {
                position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
            }
            if (BitUtil.check(alarm, 2)) {
                position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION);
            }
            if (BitUtil.check(alarm, 3)) {
                position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
            }
        }

        position.set(Position.KEY_STATUS, status);

        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;
    }

}