1 files changed, 61 insertions, 0 deletions
diff --git a/java/src/com/tigervnc/vncviewer/HTTPConnectSocket.java b/java/src/com/tigervnc/vncviewer/HTTPConnectSocket.java
new file mode 100644
index 00000000..c427b069
--- /dev/null
+++ b/java/src/com/tigervnc/vncviewer/HTTPConnectSocket.java
@@ -0,0 +1,61 @@
+//
+//  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.
+//
+
+//
+// HTTPConnectSocket.java together with HTTPConnectSocketFactory.java
+// implement an alternate way to connect to VNC servers via one or two
+// HTTP proxies supporting the HTTP CONNECT method.
+//
+
+package com.tightvnc.vncviewer;
+
+import java.net.*;
+import java.io.*;
+
+class HTTPConnectSocket extends Socket {
+
+  public HTTPConnectSocket(String host, int port,
+			   String proxyHost, int proxyPort)
+    throws IOException {
+
+    // Connect to the specified HTTP proxy
+    super(proxyHost, proxyPort);
+
+    // Send the CONNECT request
+    getOutputStream().write(("CONNECT " + host + ":" + port +
+			     " HTTP/1.0\r\n\r\n").getBytes());
+
+    // Read the first line of the response
+    DataInputStream is = new DataInputStream(getInputStream());
+    String str = is.readLine();
+
+    // Check the HTTP error code -- it should be "200" on success
+    if (!str.startsWith("HTTP/1.0 200 ")) {
+      if (str.startsWith("HTTP/1.0 "))
+	str = str.substring(9);
+      throw new IOException("Proxy reports \"" + str + "\"");
+    }
+
+    // Success -- skip remaining HTTP headers
+    do {
+      str = is.readLine();
+    } while (str.length() != 0);
+  }
+}
+