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
|
/*
* Copyright 2014 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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 java.nio.ByteOrder;
import java.nio.charset.Charset;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import java.util.TimeZone;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.codec.http.DefaultHttpResponse;
import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpResponse;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;
import org.jboss.netty.handler.codec.http.HttpVersion;
import org.jboss.netty.handler.codec.http.QueryStringDecoder;
import org.traccar.BaseProtocolDecoder;
import org.traccar.database.DataManager;
import org.traccar.helper.Log;
import org.traccar.model.ExtendedInfoFormatter;
import org.traccar.model.Position;
public class PiligrimProtocolDecoder extends BaseProtocolDecoder {
public PiligrimProtocolDecoder(String protocol) {
super(protocol);
}
private void sendResponse(Channel channel, String message) {
if (channel != null) {
HttpResponse response = new DefaultHttpResponse(
HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
response.setContent(ChannelBuffers.copiedBuffer(
ByteOrder.BIG_ENDIAN, message, Charset.defaultCharset()));
channel.write(response);
}
}
private static final int MSG_GPS = 0xF1;
private static final int MSG_GPS_SENSORS = 0xF2;
private static final int MSG_EVENTS = 0xF3;
@Override
protected Object decode(
ChannelHandlerContext ctx, Channel channel, Object msg)
throws Exception {
HttpRequest request = (HttpRequest) msg;
String uri = request.getUri();
if (uri.startsWith("/config")) {
sendResponse(channel, "CONFIG: OK");
} else if (uri.startsWith("/addlog")) {
sendResponse(channel, "ADDLOG: OK");
} else if (uri.startsWith("/inform")) {
sendResponse(channel, "INFORM: OK");
} else if (uri.startsWith("/bingps")) {
sendResponse(channel, "BINGPS: OK");
// Identification
QueryStringDecoder decoder = new QueryStringDecoder(request.getUri());
if (!identify(decoder.getParameters().get("imei").get(0))) {
return null;
}
List<Position> positions = new LinkedList<Position>();
ChannelBuffer buf = request.getContent();
while (buf.readableBytes() > 2) {
buf.readUnsignedByte(); // header
int type = buf.readUnsignedByte();
buf.readUnsignedByte(); // length
if (type == MSG_GPS || type == MSG_GPS_SENSORS) {
Position position = new Position();
ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter(getProtocol());
position.setDeviceId(getDeviceId());
// Time
Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
time.clear();
time.set(Calendar.DAY_OF_MONTH, buf.readUnsignedByte());
time.set(Calendar.MONTH, (buf.getByte(buf.readerIndex()) & 0x0f) - 1);
time.set(Calendar.YEAR, 2010 + (buf.readUnsignedByte() >> 4));
time.set(Calendar.HOUR_OF_DAY, buf.readUnsignedByte());
time.set(Calendar.MINUTE, buf.readUnsignedByte());
time.set(Calendar.SECOND, buf.readUnsignedByte());
position.setTime(time.getTime());
// Latitude
double latitude = buf.readUnsignedByte();
latitude += buf.readUnsignedByte() / 60.0;
latitude += buf.readUnsignedByte() / 6000.0;
latitude += buf.readUnsignedByte() / 600000.0;
// Longitude
double longitude = buf.readUnsignedByte();
longitude += buf.readUnsignedByte() / 60.0;
longitude += buf.readUnsignedByte() / 6000.0;
longitude += buf.readUnsignedByte() / 600000.0;
// Hemisphere
int flags = buf.readUnsignedByte();
if ((flags & 0x01) != 0) latitude = -latitude;
if ((flags & 0x02) != 0) longitude = -longitude;
position.setLatitude(latitude);
position.setLongitude(longitude);
// Satellites
int satellites = buf.readUnsignedByte();
extendedInfo.set("satellites", satellites);
position.setValid(satellites >= 3);
// Speed
position.setSpeed((double) buf.readUnsignedByte());
// Course
double course = buf.readUnsignedByte() << 1;
course += (flags >> 2) & 1;
course += buf.readUnsignedByte() / 100.0;
position.setCourse(course);
// Sensors
if (type == MSG_GPS_SENSORS) {
// External power
double power = buf.readUnsignedByte();
power += buf.readUnsignedByte() << 8;
extendedInfo.set("power", power / 100);
// Battery
double battery = buf.readUnsignedByte();
battery += buf.readUnsignedByte() << 8;
extendedInfo.set("battery", battery / 100);
buf.skipBytes(6);
}
position.setExtendedInfo(extendedInfo.toString());
positions.add(position);
} else if (type == MSG_EVENTS) {
buf.skipBytes(13);
}
}
return positions;
}
return null;
}
}
|
