File: OriginServer.java

package info (click to toggle)
openjdk-11 11.0.4%2B11-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 757,028 kB
  • sloc: java: 5,016,041; xml: 1,191,974; cpp: 934,731; ansic: 555,697; sh: 24,299; objc: 12,703; python: 3,602; asm: 3,415; makefile: 2,772; awk: 351; sed: 172; perl: 114; jsp: 24; csh: 3
file content (153 lines) | stat: -rw-r--r-- 4,840 bytes parent folder | download | duplicates (17)
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
/*
 * Copyright (c) 2001, 2003, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 *
 * This is a HTTP test server.
 */

import java.io.*;
import java.net.*;
import javax.net.*;

/*
 * OriginServer.java -- a simple server that can serve
 * http requests in both clear and secure channel.
 */

public abstract class OriginServer implements Runnable {

    private ServerSocket server = null;
    Exception serverException = null;

    /**
     * Constructs a OriginServer based on ss and
     * obtains a response data's bytecodes using the method
     * getBytes.
     */
    protected OriginServer(ServerSocket ss) throws Exception
    {
        server = ss;
        newListener();
        if (serverException != null)
            throw serverException;
    }

    /**
     * Returns an array of bytes containing the bytes for
     * data sent in the response.
     *
     * @return the bytes for the information that is being sent
     */
    public abstract byte[] getBytes();

    /**
     * The "listen" thread that accepts a connection to the
     * server, parses header and sends back the response
     */
    public void run()
    {
        Socket socket;

        // accept a connection
        try {
            socket = server.accept();
        } catch (IOException e) {
            System.out.println("Class Server died: " + e.getMessage());
            serverException = e;
            return;
        }
        try {
            DataOutputStream out =
                new DataOutputStream(socket.getOutputStream());
            try {
                BufferedReader in =
                    new BufferedReader(new InputStreamReader(
                                socket.getInputStream()));
                // read the request
                readRequest(in);
                // retrieve bytecodes
                byte[] bytecodes = getBytes();
                // send bytecodes in response (assumes HTTP/1.0 or later)
                try {
                    out.writeBytes("HTTP/1.0 200 OK\r\n");
                    out.writeBytes("Content-Length: " + bytecodes.length +
                                   "\r\n");
                    out.writeBytes("Content-Type: text/html\r\n\r\n");
                    out.write(bytecodes);
                    out.flush();
                } catch (IOException ie) {
                    serverException = ie;
                    return;
                }

            } catch (Exception e) {
                // write out error response
                out.writeBytes("HTTP/1.0 400 " + e.getMessage() + "\r\n");
                out.writeBytes("Content-Type: text/html\r\n\r\n");
                out.flush();
            }

        } catch (IOException ex) {
            System.out.println("Server: Error writing response: "
                                 + ex.getMessage());
            serverException = ex;

        } finally {
            try {
                socket.close();
            } catch (IOException e) {
                serverException = e;
            }
        }
    }

    /**
     * Create a new thread to listen.
     */
    private void newListener()
    {
        (new Thread(this)).start();
    }

    /**
     * read the response, don't care for the syntax of the request-line
     */
    private static void readRequest(BufferedReader in)
        throws IOException
    {
        String line = null;
        do {
            line = in.readLine();
            System.out.println("Server recieved: " + line);
        } while ((line.length() != 0) &&
                (line.charAt(0) != '\r') && (line.charAt(0) != '\n'));

        // read the last line to clear the POST input buffer
        // would be best to make sure all bytes are read, maybe later.
        line = in.readLine();
        System.out.println("Command received: " + line);

        System.out.println("");
    }
}