source: trunk/packages/sipb-xen-vnc-client/code/VNCProxyConnectSocketFactory.java @ 860

Last change on this file since 860 was 143, checked in by quentin, 17 years ago

SSL support for VNC proxy

File size: 2.8 KB
Line 
1//
2//  Copyright (C) 2002 Constantin Kaplinsky, Inc.  All Rights Reserved.
3//  Copyright 2007 MIT Student Information Processing Board
4//
5//  This is free software; you can redistribute it and/or modify
6//  it under the terms of the GNU General Public License as published by
7//  the Free Software Foundation; either version 2 of the License, or
8//  (at your option) any later version.
9//
10//  This software is distributed in the hope that it will be useful,
11//  but WITHOUT ANY WARRANTY; without even the implied warranty of
12//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13//  GNU General Public License for more details.
14//
15//  You should have received a copy of the GNU General Public License
16//  along with this software; if not, write to the Free Software
17//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
18//  USA.
19//
20
21//
22// VNCProxyConnectSocketFactory.java together with VNCProxyConnectSocket.java
23// implement an alternate way to connect to VNC servers via one or two
24// VNCProxy proxies supporting the VNCProxy CONNECT method.
25//
26
27import java.applet.*;
28import java.net.*;
29import javax.net.ssl.*;
30import java.io.*;
31
32class VNCProxyConnectSocketFactory implements SocketFactory {
33
34    SSLSocketFactory factory;
35   
36    public VNCProxyConnectSocketFactory() {
37        try {
38            SSLContext c = SSLContext.getInstance("SSL");
39            c.init(null,
40                   new TrustManager[] { new SIPBTrustManager() },
41                   null);
42            factory =
43                (SSLSocketFactory)c.getSocketFactory();
44        } catch (Exception e) {
45            e.printStackTrace();
46        }
47    }
48
49  public Socket createSocket(String host, int port, Applet applet)
50    throws IOException {
51
52    return createSocket(host, port,
53                        applet.getParameter("VMNAME"),
54                        applet.getParameter("AUTHTOKEN"));
55  }
56
57  public Socket createSocket(String host, int port, String[] args)
58    throws IOException {
59
60    return createSocket(host, port,
61                        readArg(args, "VMNAME"),
62                        readArg(args, "AUTHTOKEN"));
63  }
64
65  public Socket createSocket(String host, int port,
66                             String vmname, String authtoken)
67    throws IOException {
68
69    if (vmname == null || authtoken == null) {
70      System.out.println("Incomplete parameter list for VNCProxyConnectSocket");
71      return new Socket(host, port);
72    }
73
74    System.out.println("VNCProxy CONNECT via proxy " + host +
75                       " port " + port + " to vm " + vmname);
76    SSLSocket ssls = (SSLSocket)factory.createSocket(host, port);
77    ssls.startHandshake();
78    VNCProxyConnectSocketWrapper s =
79      new VNCProxyConnectSocketWrapper(ssls, vmname, authtoken);
80
81    return (Socket)s;
82  }
83
84  private String readArg(String[] args, String name) {
85
86    for (int i = 0; i < args.length; i += 2) {
87      if (args[i].equalsIgnoreCase(name)) {
88        try {
89          return args[i+1];
90        } catch (Exception e) {
91          return null;
92        }
93      }
94    }
95    return null;
96  }
97}
98
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