--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/HTTPConnectSocketFactory.java	Tue Apr 12 12:57:33 2011 +0900
@@ -0,0 +1,86 @@
+//
+//  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;
+  }
+}
+