|
0
|
1 //
|
|
|
2 // Copyright (C) 2002 Constantin Kaplinsky, Inc. All Rights Reserved.
|
|
|
3 //
|
|
|
4 // This is free software; you can redistribute it and/or modify
|
|
|
5 // it under the terms of the GNU General Public License as published by
|
|
|
6 // the Free Software Foundation; either version 2 of the License, or
|
|
|
7 // (at your option) any later version.
|
|
|
8 //
|
|
|
9 // This software is distributed in the hope that it will be useful,
|
|
|
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
12 // GNU General Public License for more details.
|
|
|
13 //
|
|
|
14 // You should have received a copy of the GNU General Public License
|
|
|
15 // along with this software; if not, write to the Free Software
|
|
|
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
|
17 // USA.
|
|
|
18 //
|
|
|
19
|
|
|
20 //
|
|
|
21 // HTTPConnectSocketFactory.java together with HTTPConnectSocket.java
|
|
|
22 // implement an alternate way to connect to VNC servers via one or two
|
|
|
23 // HTTP proxies supporting the HTTP CONNECT method.
|
|
|
24 //
|
|
|
25
|
|
|
26 import java.applet.*;
|
|
|
27 import java.net.*;
|
|
|
28 import java.io.*;
|
|
|
29
|
|
|
30 class HTTPConnectSocketFactory implements SocketFactory {
|
|
|
31
|
|
|
32 public Socket createSocket(String host, int port, Applet applet)
|
|
|
33 throws IOException {
|
|
|
34
|
|
|
35 return createSocket(host, port,
|
|
|
36 applet.getParameter("PROXYHOST1"),
|
|
|
37 applet.getParameter("PROXYPORT1"));
|
|
|
38 }
|
|
|
39
|
|
|
40 public Socket createSocket(String host, int port, String[] args)
|
|
|
41 throws IOException {
|
|
|
42
|
|
|
43 return createSocket(host, port,
|
|
|
44 readArg(args, "PROXYHOST1"),
|
|
|
45 readArg(args, "PROXYPORT1"));
|
|
|
46 }
|
|
|
47
|
|
|
48 public Socket createSocket(String host, int port,
|
|
|
49 String proxyHost, String proxyPortStr)
|
|
|
50 throws IOException {
|
|
|
51
|
|
|
52 int proxyPort = 0;
|
|
|
53 if (proxyPortStr != null) {
|
|
|
54 try {
|
|
|
55 proxyPort = Integer.parseInt(proxyPortStr);
|
|
|
56 } catch (NumberFormatException e) { }
|
|
|
57 }
|
|
|
58
|
|
|
59 if (proxyHost == null || proxyPort == 0) {
|
|
|
60 System.out.println("Incomplete parameter list for HTTPConnectSocket");
|
|
|
61 return new Socket(host, port);
|
|
|
62 }
|
|
|
63
|
|
|
64 System.out.println("HTTP CONNECT via proxy " + proxyHost +
|
|
|
65 " port " + proxyPort);
|
|
|
66 HTTPConnectSocket s =
|
|
|
67 new HTTPConnectSocket(host, port, proxyHost, proxyPort);
|
|
|
68
|
|
|
69 return (Socket)s;
|
|
|
70 }
|
|
|
71
|
|
|
72 private String readArg(String[] args, String name) {
|
|
|
73
|
|
|
74 for (int i = 0; i < args.length; i += 2) {
|
|
|
75 if (args[i].equalsIgnoreCase(name)) {
|
|
|
76 try {
|
|
|
77 return args[i+1];
|
|
|
78 } catch (Exception e) {
|
|
|
79 return null;
|
|
|
80 }
|
|
|
81 }
|
|
|
82 }
|
|
|
83 return null;
|
|
|
84 }
|
|
|
85 }
|
|
|
86
|
