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//
// Copyright (C) 2002 Constantin Kaplinsky, Inc. All Rights Reserved.
//
// This is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This software 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 for more details.
//
// You should have received a copy of the GNU General Public License
// along with this software; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
//
//
// HTTPConnectSocketFactory.java together with HTTPConnectSocket.java
// implement an alternate way to connect to VNC servers via one or two
// HTTP proxies supporting the HTTP CONNECT method.
//
import java.applet.*;
import java.net.*;
import java.io.*;
class HTTPConnectSocketFactory implements SocketFactory {
public Socket createSocket(String host, int port, Applet applet)
throws IOException {
return createSocket(host, port,
applet.getParameter("PROXYHOST1"),
applet.getParameter("PROXYPORT1"));
}
public Socket createSocket(String host, int port, String[] args)
throws IOException {
return createSocket(host, port,
readArg(args, "PROXYHOST1"),
readArg(args, "PROXYPORT1"));
}
public Socket createSocket(String host, int port,
String proxyHost, String proxyPortStr)
throws IOException {
int proxyPort = 0;
if (proxyPortStr != null) {
try {
proxyPort = Integer.parseInt(proxyPortStr);
} catch (NumberFormatException e) { }
}
if (proxyHost == null || proxyPort == 0) {
System.out.println("Incomplete parameter list for HTTPConnectSocket");
return new Socket(host, port);
}
System.out.println("HTTP CONNECT via proxy " + proxyHost +
" port " + proxyPort);
HTTPConnectSocket s =
new HTTPConnectSocket(host, port, proxyHost, proxyPort);
return (Socket)s;
}
private String readArg(String[] args, String name) {
for (int i = 0; i < args.length; i += 2) {
if (args[i].equalsIgnoreCase(name)) {
try {
return args[i+1];
} catch (Exception e) {
return null;
}
}
}
return null;
}
}
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