aboutsummaryrefslogtreecommitdiff
path: root/src/org/traccar/http/WebServer.java
blob: 53cdb296688b5e9db122c76e21b023123ab8f3c9 (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
/*
 * Copyright 2012 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.http;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.traccar.model.DataManager;
import org.traccar.model.Device;
import org.traccar.model.Position;

/**
 * Integrated HTTP server
 */
public class WebServer {

    private Server server;

    public class WebHandler extends AbstractHandler {

        private DataManager dataManager;

        public static final int BUFFER_SIZE = 1024;

        public WebHandler(DataManager dataManager) {
            this.dataManager = dataManager;
        }

        public void handleIndex(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response)
                throws IOException, ServletException {

            response.setContentType("text/html");

            InputStream in = this.getClass().getClassLoader().getResourceAsStream("index.html");
            OutputStream out = response.getOutputStream();

            byte[] buffer = new byte[BUFFER_SIZE];
            int count;
            while ((count = in.read(buffer)) != -1) {
                out.write(buffer, 0, count);
            }
            out.flush();
        }

        public void handleIcon(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response)
                throws IOException, ServletException {

            response.setContentType("image/x-icon");

            InputStream in = this.getClass().getClassLoader().getResourceAsStream("favicon.ico");
            OutputStream out = response.getOutputStream();

            byte[] buffer = new byte[BUFFER_SIZE];
            int count;
            while ((count = in.read(buffer)) != -1) {
                out.write(buffer, 0, count);
            }
            out.flush();
        }

        private Device parseDevice(String json) {

            Pattern pattern = Pattern.compile("\\{\"id\":(\\d+),\"imei\":\"(.*)\"\\}");
            Matcher parser = pattern.matcher(json);
            if (parser.matches()) {
                Device device = new Device();
                device.setId(Long.valueOf(parser.group(1)));
                device.setImei(parser.group(2));
                return device;
            }

            return null;
        }

        // TODO: separate method into small parts
        public void handleData(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response)
                throws IOException, ServletException {

            response.setContentType("application/json");

            PrintWriter out = response.getWriter();

            try {
                if (target.equals("/devices.json")) {

                    String action = request.getParameter("action");
                    if (action == null) {
                        Iterator<Device> i = dataManager.getDevices().iterator();
                        out.print("{'success':true,'results':[");
                        while (i.hasNext()) {
                            Device device = i.next();
                            out.format("{'id':%d,'imei':'%s'}",
                                    device.getId(),
                                    device.getImei());
                            if (i.hasNext()) out.print(",");
                        }
                    } else if (action.equals("create")) {
                        Device device = parseDevice(request.getReader().readLine());
                        dataManager.addDevice(device);
                        out.print("{'success':true,'results':[");
                        out.format("{'id':%d,'imei':'%s'}",
                                device.getId(),
                                device.getImei());
                    } else if (action.equals("update")) {
                        Device device = parseDevice(request.getReader().readLine());
                        dataManager.updateDevice(device);
                        out.print("{'success':true,'results':[");
                        out.format("{'id':%d,'imei':'%s'}",
                                device.getId(),
                                device.getImei());
                    } else if (action.equals("destroy")) {
                        Device device = parseDevice(request.getReader().readLine());
                        dataManager.removeDevice(device);
                        out.print("{'success':true,'results':[");
                    }

                } else if (target.equals("/positions.json")) {

                    out.print("{'success':true,'results':[");
                    String deviceId = request.getParameter("deviceId");
                    if (deviceId != null) {
                        Iterator<Position> i = dataManager.getPositions(Long.valueOf(deviceId)).iterator();
                        while (i.hasNext()) {
                            Position position = i.next();
                            out.format("{'device_id':%d,'time':'%tF %tT','valid':%b,'latitude':%f,'longitude':%f,'speed':%f,'course':%f}",
                                    position.getDeviceId(),
                                    position.getTime(), position.getTime(),
                                    position.getValid(),
                                    position.getLatitude(),
                                    position.getLongitude(),
                                    position.getSpeed(),
                                    position.getCourse());
                            if (i.hasNext()) out.print(",");
                        }
                    }

                }
            } catch (Exception error) {
                out.print("{'success':false,'results':[");
                System.out.println(error.getMessage());
            }

            out.print("]}");
            out.flush();
        }

        public void handleOther(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response)
                throws IOException, ServletException {
            response.sendRedirect(response.encodeRedirectURL("/"));
        }

        public void handle(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response)
                throws IOException, ServletException
        {
            if (target.equals("/") || target.equals("/index.html")) {
                handleIndex(target, baseRequest, request, response);
            } else if (target.equals("/favicon.ico")) {
                handleIcon(target, baseRequest, request, response);
            } else if (target.matches("/.+\\.json")) {
                handleData(target, baseRequest, request, response);
            } else {
                handleOther(target, baseRequest, request, response);
            }
        }
    }

    public WebServer(Integer port, DataManager dataManager) {
        server = new Server(port);
        server.setHandler(new WebHandler(dataManager));
    }

    public void start() {
        try {
            server.start();
        } catch (Exception error) {
            System.out.println(error.getMessage());
        }
    }

    public void stop() {
        try {
            server.stop();
        } catch (Exception error) {
            System.out.println(error.getMessage());
        }
    }

}