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
|
/*
* Copyright 2012 - 2016 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;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.socket.DatagramChannel;
import org.jboss.netty.handler.codec.http.HttpRequestDecoder;
import org.traccar.helper.Log;
import org.traccar.model.Device;
import org.traccar.model.Position;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.sql.SQLException;
public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
private final Protocol protocol;
public long addUnknownDevice(String uniqueId) {
Device device = new Device();
device.setName(uniqueId);
device.setUniqueId(uniqueId);
device.setCategory(Context.getConfig().getString("database.registerUnknown.defaultCategory"));
long defaultGroupId = Context.getConfig().getLong("database.registerUnknown.defaultGroupId");
if (defaultGroupId != 0) {
device.setGroupId(defaultGroupId);
}
try {
Context.getDeviceManager().addItem(device);
Log.info("Automatically registered device " + uniqueId);
if (defaultGroupId != 0) {
Context.getPermissionsManager().refreshPermissions();
Context.getPermissionsManager().refreshAllExtendedPermissions();
}
return device.getId();
} catch (SQLException e) {
Log.warning(e);
return 0;
}
}
public String getProtocolName() {
return protocol.getName();
}
private DeviceSession channelDeviceSession; // connection-based protocols
private Map<SocketAddress, DeviceSession> addressDeviceSessions = new HashMap<>(); // connectionless protocols
private long findDeviceId(SocketAddress remoteAddress, String... uniqueIds) {
long deviceId = 0;
if (uniqueIds.length > 0) {
try {
for (String uniqueId : uniqueIds) {
if (uniqueId != null) {
Device device = Context.getIdentityManager().getDeviceByUniqueId(uniqueId);
if (device != null) {
deviceId = device.getId();
break;
}
}
}
} catch (Exception e) {
Log.warning(e);
}
if (deviceId == 0) {
if (Context.getConfig().getBoolean("database.registerUnknown")) {
return addUnknownDevice(uniqueIds[0]);
}
StringBuilder message = new StringBuilder("Unknown device -");
for (String uniqueId : uniqueIds) {
message.append(" ").append(uniqueId);
}
if (remoteAddress != null) {
message.append(" (").append(((InetSocketAddress) remoteAddress).getHostString()).append(")");
}
Log.warning(message.toString());
}
}
return deviceId;
}
public DeviceSession getDeviceSession(Channel channel, SocketAddress remoteAddress, String... uniqueIds) {
if (channel != null && channel.getPipeline().get(HttpRequestDecoder.class) != null
|| Context.getConfig().getBoolean("decoder.ignoreSessionCache")) {
long deviceId = findDeviceId(remoteAddress, uniqueIds);
if (deviceId != 0) {
if (Context.getConnectionManager() != null) {
Context.getConnectionManager().addActiveDevice(deviceId, protocol, channel, remoteAddress);
}
return new DeviceSession(deviceId);
} else {
return null;
}
}
if (channel instanceof DatagramChannel) {
long deviceId = findDeviceId(remoteAddress, uniqueIds);
DeviceSession deviceSession = addressDeviceSessions.get(remoteAddress);
if (deviceSession != null && (deviceSession.getDeviceId() == deviceId || uniqueIds.length == 0)) {
return deviceSession;
} else if (deviceId != 0) {
deviceSession = new DeviceSession(deviceId);
addressDeviceSessions.put(remoteAddress, deviceSession);
if (Context.getConnectionManager() != null) {
Context.getConnectionManager().addActiveDevice(deviceId, protocol, channel, remoteAddress);
}
return deviceSession;
} else {
return null;
}
} else {
if (channelDeviceSession == null) {
long deviceId = findDeviceId(remoteAddress, uniqueIds);
if (deviceId != 0) {
channelDeviceSession = new DeviceSession(deviceId);
if (Context.getConnectionManager() != null) {
Context.getConnectionManager().addActiveDevice(deviceId, protocol, channel, remoteAddress);
}
}
}
return channelDeviceSession;
}
}
public BaseProtocolDecoder(Protocol protocol) {
this.protocol = protocol;
}
public void getLastLocation(Position position, Date deviceTime) {
if (position.getDeviceId() != 0) {
position.setOutdated(true);
Position last = Context.getIdentityManager().getLastPosition(position.getDeviceId());
if (last != null) {
position.setFixTime(last.getFixTime());
position.setValid(last.getValid());
position.setLatitude(last.getLatitude());
position.setLongitude(last.getLongitude());
position.setAltitude(last.getAltitude());
position.setSpeed(last.getSpeed());
position.setCourse(last.getCourse());
position.setAccuracy(last.getAccuracy());
} else {
position.setFixTime(new Date(0));
}
if (deviceTime != null) {
position.setDeviceTime(deviceTime);
} else {
position.setDeviceTime(new Date());
}
}
}
@Override
protected void onMessageEvent(
Channel channel, SocketAddress remoteAddress, Object originalMessage, Object decodedMessage) {
if (Context.getStatisticsManager() != null) {
Context.getStatisticsManager().registerMessageReceived();
}
Position position = null;
if (decodedMessage != null) {
if (decodedMessage instanceof Position) {
position = (Position) decodedMessage;
} else if (decodedMessage instanceof Collection) {
Collection positions = (Collection) decodedMessage;
if (!positions.isEmpty()) {
position = (Position) positions.iterator().next();
}
}
}
if (position != null) {
Context.getConnectionManager().updateDevice(
position.getDeviceId(), Device.STATUS_ONLINE, new Date());
} else {
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession != null) {
Context.getConnectionManager().updateDevice(
deviceSession.getDeviceId(), Device.STATUS_ONLINE, new Date());
}
}
}
@Override
protected Object handleEmptyMessage(Channel channel, SocketAddress remoteAddress, Object msg) {
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (Context.getConfig().getBoolean("database.saveEmpty") && deviceSession != null) {
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
getLastLocation(position, null);
return position;
} else {
return null;
}
}
}
|
