// // 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; } }
