aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java
blob: be9b23e37f6e1d2f308e1ded73ebed44501eeb19 (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
/*
 * Copyright 2022 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.Unpooled;
import io.netty.channel.Channel;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.HttpResponseStatus;
import io.netty.handler.codec.http.QueryStringDecoder;
import org.traccar.BaseHttpProtocolDecoder;
import org.traccar.Protocol;
import org.traccar.model.CellTower;
import org.traccar.model.Command;
import org.traccar.model.Network;
import org.traccar.model.Position;
import org.traccar.session.DeviceSession;

import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonObject;
import java.io.StringReader;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.Date;
import java.util.List;
import java.util.Map;

public class RfTrackProtocolDecoder extends BaseHttpProtocolDecoder {

    public RfTrackProtocolDecoder(Protocol protocol) {
        super(protocol);
    }

    @Override
    protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

        FullHttpRequest request = (FullHttpRequest) msg;
        QueryStringDecoder decoder = new QueryStringDecoder(
                request.content().toString(StandardCharsets.US_ASCII), false);
        Map<String, List<String>> params = decoder.parameters();

        Position position = new Position(getProtocolName());
        Network network = new Network();

        for (Map.Entry<String, List<String>> entry : params.entrySet()) {
            for (String value : entry.getValue()) {
                switch (entry.getKey()) {
                    case "i":
                        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value);
                        if (deviceSession == null) {
                            sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
                            return null;
                        }
                        position.setDeviceId(deviceSession.getDeviceId());
                        break;
                    case "v":
                        position.set(Position.KEY_VERSION_FW, value);
                        break;
                    case "t":
                        position.setDeviceTime(new Date(Long.parseLong(value)));
                        break;
                    case "bat":
                        int battery = Integer.parseInt(value);
                        position.set(Position.KEY_BATTERY_LEVEL, battery & 0xff);
                        position.set("plugStatus", (battery >> 8) & 0x0f);
                        position.set(Position.KEY_CHARGE, ((battery >> 12) & 0x0f) == 1);
                        break;
                    case "id":
                        position.set("braceletId", value);
                        break;
                    case "rc":
                        int braceletCode = Integer.parseInt(value);
                        position.set("braceletCode", braceletCode & 0xffff);
                        position.set("braceletStatus", braceletCode >> 16);
                        break;
                    case "idt":
                        long braceletTime = Long.parseLong(value);
                        position.set("lastHeartbeat", (braceletTime >> 45) * 10);
                        position.set("lastPaired", ((braceletTime >> 30) & 0xffff) * 10);
                        position.set("lastUnpaired", ((braceletTime >> 15) & 0xffff) * 10);
                        break;
                    case "mt":
                        int vibrationTime = Integer.parseInt(value);
                        position.set("vibrationDevice", (vibrationTime & 0x7fff) * 10);
                        position.set("vibrationBracelet", (vibrationTime >> 15) * 10);
                        break;
                    case "gps":
                        JsonObject location = Json.createReader(new StringReader(value)).readObject();
                        position.setValid(true);
                        position.setAccuracy(location.getJsonNumber("a").doubleValue());
                        position.setLongitude(location.getJsonNumber("x").doubleValue());
                        position.setLatitude(location.getJsonNumber("y").doubleValue());
                        position.setAltitude(location.getJsonNumber("z").doubleValue());
                        position.setFixTime(new Date(location.getJsonNumber("t").longValue()));
                        break;
                    case "gsm":
                        JsonObject cellInfo = Json.createReader(new StringReader(value)).readObject();
                        int mcc = cellInfo.getInt("c");
                        int mnc = cellInfo.getInt("n");
                        JsonArray cells = cellInfo.getJsonArray("b");
                        for (int i = 0; i < cells.size(); i++) {
                            JsonObject cell = cells.getJsonObject(i);
                            network.addCellTower(CellTower.from(
                                    mcc, mnc, cell.getInt("l"), cell.getInt("c"), cell.getInt("b")));
                        }
                        break;
                    case "dbm":
                        position.set(Position.KEY_RSSI, Integer.parseInt(value));
                        break;
                    case "bar":
                        position.set("pressure", Double.parseDouble(value));
                        break;
                    case "cob":
                        position.set("pressureChanges", value);
                        break;
                    case "u_ids":
                        position.set("unpairedIds", value);
                        break;
                    default:
                        break;
                }
            }
        }

        if (position.getFixTime() == null) {
            getLastLocation(position, position.getDeviceTime());
        }

        if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
            position.setNetwork(network);
        }

        String response = "{}";
        for (Command command : getCommandsManager().readQueuedCommands(position.getDeviceId(), 1)) {
            response = command.getString(Command.KEY_DATA);
        }
        sendResponse(channel, HttpResponseStatus.OK, Unpooled.copiedBuffer(response, StandardCharsets.UTF_8));
        return position;
    }

}