Add noVNC HTML5 client connect possibility to our http server.

Pure JavaScript, no Java plugin required anymore! (But a recent browser...)

classes/index.vnc

@@ -13,6 +13,12 @@ $USER's $DESKTOP desktop ($DISPLAY)
 <param name=PORT value=$PORT>
 <param name="Open New Window" value=yes>
 </APPLET>
-<BR>
+<br/>
-<A href="http://www.tightvnc.com/">www.TightVNC.com</A>
+<br/>
+If the above Java applet does not work, you can also try the new JavaScript-only <a href="http://novnc.com"<noVNC</a> viewer. You will need a HTML5-capable browser though.
+<a href="novnc/vnc_auto.html?host=$HOST&port=$PORT&true_color=1">Click here to connect using noVNC.</a>
+<br/>
+<br/>
+<br/>
+<A href="http://libvncserver.sf.net/">LibVNCServer/libVNCClient Homepage</A>
 </HTML>

classes/novnc/LICENSE.txt

@@ -0,0 +1,33 @@
+noVNC is Copyright (C) 2011 Joel Martin <github@martintribe.org>
+
+Some portions of noVNC are copyright to their individual authors.
+Please refer to the individual source files and/or to the noVNC commit
+history: https://github.com/kanaka/noVNC/commits/master
+
+noVNC is licensed under the LGPL (GNU Lesser General Public License)
+version 3 with the following exceptions (all LGPL-3 compatible):
+
+    include/input.js           : LGPL-2 or any later version
+   
+    include/base64.js          : Dual GPL-2 or LGPL-2.1
+   
+    include/des.js             : Various BSD style licenses
+
+    include/web-socket-js/     : New BSD license. Source code at
+                                 http://github.com/gimite/web-socket-js
+
+    include/Orbitron*          : SIL Open Font License 1.1
+                                 (Copyright 2009 Matt McInerney)
+
+    images/                    : Creative Commons Attribution-ShareAlike
+                                 http://creativecommons.org/licenses/by-sa/3.0/
+
+The license texts are included at:
+    docs/LICENSE.LGPL-3 and
+    docs/LICENSE.GPL-3
+    docs/LICENSE.OFL-1.1
+
+Or alternatively the license texts may be found here:
+    http://www.gnu.org/licenses/lgpl.html and
+    http://www.gnu.org/licenses/gpl.html
+    http://scripts.sil.org/OFL

classes/novnc/README.md

@@ -0,0 +1,93 @@
+## noVNC: HTML5 VNC Client
+
+
+### Description
+
+noVNC is a VNC client implemented using HTML5 technologies,
+specifically Canvas and WebSockets (supports 'wss://' encryption).
+noVNC is licensed under the
+[LGPLv3](http://www.gnu.org/licenses/lgpl.html).
+
+Special thanks to [Sentry Data Systems](http://www.sentryds.com) for
+sponsoring ongoing development of this project (and for employing me).
+
+There are many companies/projects that have integrated noVNC into
+their products including: [Sentry Data Systems](http://www.sentryds.com), [Ganeti Web Manager](http://code.osuosl.org/projects/ganeti-webmgr), [Archipel](http://archipelproject.org), [openQRM](http://www.openqrm.com/), [OpenNode](http://www.opennodecloud.com/), [OpenStack](http://www.openstack.org), [Broadway (HTML5 GDK/GTK+ backend)](http://blogs.gnome.org/alexl/2011/03/15/gtk-html-backend-update/), [OpenNebula](http://opennebula.org/), [CloudSigma](http://www.cloudsigma.com/), [Zentyal (formerly eBox)](http://www.zentyal.org/), and [SlapOS](http://www.slapos.org). See [this wiki page](https://github.com/kanaka/noVNC/wiki/ProjectsCompanies-using-noVNC) for more info and links.
+
+Notable commits, announcements and news are posted to
+@<a href="http://www.twitter.com/noVNC">noVNC</a>
+
+
+### Screenshots
+
+Running in Chrome before and after connecting:
+
+<img src="http://kanaka.github.com/noVNC/img/noVNC-5.png" width=400>&nbsp;<img src="http://kanaka.github.com/noVNC/img/noVNC-7.jpg" width=400>
+
+See more screenshots <a href="http://kanaka.github.com/noVNC/screenshots.html">here</a>.
+
+
+### Browser Requirements
+
+* HTML5 Canvas (with createImageData): Chrome, Firefox 3.6+, iOS
+  Safari, Opera 11+, Internet Explorer 9+, etc.
+
+* HTML5 WebSockets: For browsers that do not have builtin
+  WebSockets support, the project includes
+  <a href="http://github.com/gimite/web-socket-js">web-socket-js</a>,
+  a WebSockets emulator using Adobe Flash. iOS 4.2+ has built-in
+  WebSocket support.
+
+* Fast Javascript Engine: noVNC avoids using new Javascript
+  functionality so it will run on older browsers, but decode and
+  rendering happen in Javascript, so a slow Javascript engine will
+  mean noVNC is painfully slow.
+
+* I maintain a more detailed browser compatibility list <a
+  href="https://github.com/kanaka/noVNC/wiki/Browser-support">here</a>.
+
+
+### Server Requirements
+
+Unless you are using a VNC server with support for WebSockets
+connections (only my [fork of libvncserver](http://github.com/kanaka/libvncserver)
+currently), you need to use a WebSockets to TCP socket proxy. There is
+a python proxy included ('websockify'). One advantage of using the
+proxy is that it has builtin support for SSL/TLS encryption (i.e.
+"wss://").
+
+There a few reasons why a proxy is required:
+
+  1. WebSockets is not a pure socket protocol. There is an initial HTTP
+     like handshake to allow easy hand-off by web servers and allow
+     some origin policy exchange. Also, each WebSockets frame begins
+     with 0 ('\x00') and ends with 255 ('\xff').
+
+  2. Javascript itself does not have the ability to handle pure byte
+     arrays. The python proxy encodes the data as base64 so that the
+     Javascript client can decode the data as an integer array.
+
+
+### Quick Start
+
+* Use the launch script to start a mini-webserver and the WebSockets
+  proxy (websockify). The `--vnc` option is used to specify the location of
+  a running VNC server:
+
+    `./utils/launch.sh --vnc localhost:5901`
+
+* Point your browser to the cut-and-paste URL that is output by the
+  launch script. Enter a password if the VNC server has one
+  configured. Hit the Connect button and enjoy!
+
+
+### Other Pages
+
+* [Advanced Usage](https://github.com/kanaka/noVNC/wiki/Advanced-usage). Generating an SSL
+  certificate, starting a VNC server, advanced websockify usage, etc.
+
+* [Integrating noVNC](https://github.com/kanaka/noVNC/wiki/Integration) into existing projects.
+
+* [Troubleshooting noVNC](https://github.com/kanaka/noVNC/wiki/Troubleshooting) problems.
+
+

classes/novnc/favicon.ico

@@ -0,0 +1 @@
+images/favicon.ico

classes/novnc/include/base.css

@@ -0,0 +1,380 @@
+body {
+  margin:0;
+  padding:0;
+  font-family: Helvetica;
+  /*Background image with light grey curve.*/
+  background-color:#494949;
+  background-repeat:no-repeat;
+  background-position:right bottom;
+  height:100%;
+}
+
+html {
+  height:100%;
+}
+
+#noVNC_controls ul {
+  list-style: none;
+  margin: 0px;
+  padding: 0px;
+}
+#noVNC_controls li {
+  padding-bottom:8px;
+}
+
+#noVNC_host {
+  width:150px;
+}
+#noVNC_port {
+  width: 80px;
+}
+#noVNC_password {
+  width: 150px;
+}
+#noVNC_encrypt {
+}
+#noVNC_connectTimeout {
+  width: 30px;
+}
+#noVNC_path {
+  width: 100px;
+}
+#noVNC_connect_button {
+  width: 110px;
+  float:right;
+}
+
+
+#noVNC_view_drag_button {
+  display: none;
+}
+#sendCtrlAltDelButton {
+  display: none;
+}
+#noVNC_mobile_buttons {
+  display: none;
+}
+
+.noVNC-buttons-left {
+  float: left;
+  padding-left:10px;
+  padding-top:4px;
+}
+
+.noVNC-buttons-right {
+  float:right;
+  right: 0px;
+  padding-right:10px;
+  padding-top:4px;
+}
+
+#noVNC_status_bar {
+  margin-top: 0px;
+  padding: 0px;
+}
+
+#noVNC_status_bar div {
+  font-size: 12px;
+  padding-top: 4px;
+  width:100%;
+}
+
+#noVNC_status {
+  height:20px;
+  text-align: center;
+}
+#noVNC_settings_menu {
+  margin: 3px;
+  text-align: left;
+}
+#noVNC_settings_menu ul {
+  list-style: none;
+  margin: 0px;
+  padding: 0px;
+}
+
+#noVNC_apply {
+  float:right;
+}
+
+.noVNC_status_normal {
+  background: #eee;
+}
+.noVNC_status_error {
+  background: #f44;
+}
+.noVNC_status_warn {
+  background: #ff4;
+}
+
+/* Do not set width/height for VNC_screen or VNC_canvas or incorrect
+ * scaling will occur. Canvas resizes to remote VNC settings */
+#noVNC_screen_pad {
+  margin: 0px;
+  padding: 0px;
+  height: 44px;
+}
+#noVNC_screen {
+  text-align: center;
+  display: table;
+  width:100%;
+  height:100%;
+  background-color:#313131;
+  border-bottom-right-radius: 800px 600px;
+  /*border-top-left-radius: 800px 600px;*/
+}
+
+#noVNC_container, #noVNC_canvas {
+  margin: 0px;
+  padding: 0px;
+}
+
+#noVNC_canvas {
+  left: 0px;
+}
+
+#VNC_clipboard_clear_button {
+  float:right;
+}
+#VNC_clipboard_text {
+  font-size: 11px;
+}
+
+#noVNC_clipboard_clear_button {
+  float:right;
+}
+
+/*Bubble contents divs*/
+#noVNC_settings {
+  display:none;
+  margin-top:77px;
+  right:20px;
+  position:fixed;
+}
+
+#noVNC_controls {
+  margin-top:77px;
+  right:12px;
+  position:fixed;
+}
+#noVNC_controls.top:after  {
+  right:15px;
+}
+
+#noVNC_clipboard {
+  display:none;
+  margin-top:77px;
+  right:30px;
+  position:fixed;
+}
+#noVNC_clipboard.top:after {
+  right:85px;
+}
+
+#keyboardinput {
+  width:1px;
+  height:1px;
+  background-color:#fff;
+  color:#fff;
+  border:0;
+  position: relative;
+  left: -40px;
+  z-index: -1;
+}
+
+.noVNC_status_warn {
+  background-color:yellow;
+}
+
+/*
+ * Advanced Styling
+ */
+
+/* Control bar */
+#noVNC-control-bar {
+  position:fixed;
+  background: #b2bdcd; /* Old browsers */
+  background: -moz-linear-gradient(top, #b2bdcd 0%, #899cb3 49%, #7e93af 51%, #6e84a3 100%); /* FF3.6+ */
+  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#b2bdcd), color-stop(49%,#899cb3), color-stop(51%,#7e93af), color-stop(100%,#6e84a3)); /* Chrome,Safari4+ */
+  background: -webkit-linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* Chrome10+,Safari5.1+ */
+  background: -o-linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* Opera11.10+ */
+  background: -ms-linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* IE10+ */
+  background: linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* W3C */
+
+  display:block;
+  height:44px;
+  left:0;
+  top:0;
+  width:100%;
+  z-index:200;
+}
+
+.noVNC_status_button {
+  padding: 4px 4px;
+  vertical-align: middle;
+  border:1px solid #869dbc;
+  -webkit-border-radius: 6px;
+  -moz-border-radius: 6px;
+  border-radius: 6px;
+  background: #b2bdcd; /* Old browsers */
+  background: -moz-linear-gradient(top, #b2bdcd 0%, #899cb3 49%, #7e93af 51%, #6e84a3 100%); /* FF3.6+ */
+  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#b2bdcd), color-stop(49%,#899cb3), color-stop(51%,#7e93af), color-stop(100%,#6e84a3)); /* Chrome,Safari4+ */
+  background: -webkit-linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* Chrome10+,Safari5.1+ */
+  background: -o-linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* Opera11.10+ */
+  background: -ms-linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* IE10+ */
+  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#b2bdcd', endColorstr='#6e84a3',GradientType=0 ); /* IE6-9 */
+  background: linear-gradient(top, #b2bdcd 0%,#899cb3 49%,#7e93af 51%,#6e84a3 100%); /* W3C */
+  /*box-shadow:inset 0.4px 0.4px 0.4px #000000;*/
+}
+
+.noVNC_status_button_selected {
+  padding: 4px 4px;
+  vertical-align: middle;
+  border:1px solid #4366a9;
+  -webkit-border-radius: 6px;
+  -moz-border-radius: 6px;
+  background: #779ced; /* Old browsers */
+  background: -moz-linear-gradient(top, #779ced 0%, #3970e0 49%, #2160dd 51%, #2463df 100%); /* FF3.6+ */
+  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#779ced), color-stop(49%,#3970e0), color-stop(51%,#2160dd), color-stop(100%,#2463df)); /* Chrome,Safari4+ */
+  background: -webkit-linear-gradient(top, #779ced 0%,#3970e0 49%,#2160dd 51%,#2463df 100%); /* Chrome10+,Safari5.1+ */
+  background: -o-linear-gradient(top, #779ced 0%,#3970e0 49%,#2160dd 51%,#2463df 100%); /* Opera11.10+ */
+  background: -ms-linear-gradient(top, #779ced 0%,#3970e0 49%,#2160dd 51%,#2463df 100%); /* IE10+ */
+  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#779ced', endColorstr='#2463df',GradientType=0 ); /* IE6-9 */
+  background: linear-gradient(top, #779ced 0%,#3970e0 49%,#2160dd 51%,#2463df 100%); /* W3C */
+ /*box-shadow:inset 0.4px 0.4px 0.4px #000000;*/
+}
+
+
+/*Settings Bubble*/
+.triangle-right {
+  position:relative;
+  padding:15px;
+  margin:1em 0 3em;
+  color:#fff;
+  background:#fff; /* default background for browsers without gradient support */
+  /* css3 */
+  /*background:-webkit-gradient(linear, 0 0, 0 100%, from(#2e88c4), to(#075698));
+  background:-moz-linear-gradient(#2e88c4, #075698);
+  background:-o-linear-gradient(#2e88c4, #075698);
+  background:linear-gradient(#2e88c4, #075698);*/
+  -webkit-border-radius:10px;
+  -moz-border-radius:10px;
+  border-radius:10px;
+  color:#000;
+  border:2px solid #E0E0E0;
+}
+
+.triangle-right.top:after {
+  border-color: transparent #E0E0E0;
+  border-width: 20px 20px 0 0;
+  bottom: auto;
+  left: auto;
+  right: 50px;
+  top: -20px;
+}
+
+.triangle-right:after {
+  content:"";
+  position:absolute;
+  bottom:-20px; /* value = - border-top-width - border-bottom-width */
+  left:50px; /* controls horizontal position */
+  border-width:20px 0 0 20px; /* vary these values to change the angle of the vertex */
+  border-style:solid;
+  border-color:#E0E0E0 transparent;
+  /* reduce the damage in FF3.0 */
+  display:block;
+  width:0;
+}
+
+.triangle-right.top:after {
+  top:-40px; /* value = - border-top-width - border-bottom-width */
+  right:50px; /* controls horizontal position */
+  bottom:auto;
+  left:auto;
+  border-width:40px 40px 0 0; /* vary these values to change the angle of the vertex */
+  border-color:transparent #E0E0E0;
+}
+
+/*Default noVNC logo.*/
+/* From: http://fonts.googleapis.com/css?family=Orbitron:700 */
+@font-face {
+  font-family: 'Orbitron';
+  font-style: normal;
+  font-weight: 700;
+  src: local('?'), url('Orbitron700.woff') format('woff'),
+                   url('Orbitron700.ttf') format('truetype');
+}
+
+#noVNC_logo {
+  margin-top: 170px;
+  margin-left: 10px;
+  color:yellow;
+  text-align:left;
+  font-family: 'Orbitron', 'OrbitronTTF', sans-serif;
+  line-height:90%;
+  text-shadow:
+       5px 5px 0 #000,
+      -1px -1px 0 #000,
+       1px -1px 0 #000,
+      -1px 1px 0 #000,
+       1px 1px 0 #000;
+}
+
+
+#noVNC_logo span{
+  color:green;
+}
+
+/* ----------------------------------------
+ * Media sizing
+ * ----------------------------------------
+ */
+
+
+.noVNC_status_button {
+  font-size: 12px;
+}
+
+#noVNC_clipboard_text {
+  width: 500px;
+}
+
+#noVNC_logo {
+  font-size: 180px;
+}
+
+@media screen and (min-width: 481px) and (max-width: 640px) {
+  .noVNC_status_button {
+    font-size: 10px;
+  }
+  #noVNC_clipboard_text {
+    width: 410px;
+  }
+  #noVNC_logo {
+    font-size: 150px;
+  }
+}
+
+@media screen and (min-width: 321px) and (max-width: 480px) {
+  .noVNC_status_button {
+    font-size: 10px;
+  }
+  #noVNC_clipboard_text {
+    width: 250px;
+  }
+  #noVNC_logo {
+    font-size: 110px;
+  }
+}
+
+@media screen and (max-width: 320px) {
+  .noVNC_status_button {
+    font-size: 9px;
+  }
+  #noVNC_clipboard_text {
+    width: 220px;
+  }
+  #noVNC_logo {
+    font-size: 90px;
+  }
+}

classes/novnc/include/base64.js

@@ -0,0 +1,147 @@
+/*
+ * Modified from:
+ * http://lxr.mozilla.org/mozilla/source/extensions/xml-rpc/src/nsXmlRpcClient.js#956
+ */
+
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla XML-RPC Client component.
+ *
+ * The Initial Developer of the Original Code is
+ * Digital Creations 2, Inc.
+ * Portions created by the Initial Developer are Copyright (C) 2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Martijn Pieters <mj@digicool.com> (original author)
+ *   Samuel Sieb <samuel@sieb.net>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*jslint white: false, bitwise: false, plusplus: false */
+/*global console */
+
+var Base64 = {
+
+/* Convert data (an array of integers) to a Base64 string. */
+toBase64Table : 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
+base64Pad     : '=',
+
+encode: function (data) {
+    "use strict";
+    var result = '',
+        chrTable = Base64.toBase64Table.split(''),
+        pad = Base64.base64Pad,
+        length = data.length,
+        i;
+    // Convert every three bytes to 4 ascii characters.
+    for (i = 0; i < (length - 2); i += 3) {
+        result += chrTable[data[i] >> 2];
+        result += chrTable[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
+        result += chrTable[((data[i+1] & 0x0f) << 2) + (data[i+2] >> 6)];
+        result += chrTable[data[i+2] & 0x3f];
+    }
+
+    // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
+    if (length%3) {
+        i = length - (length%3);
+        result += chrTable[data[i] >> 2];
+        if ((length%3) === 2) {
+            result += chrTable[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
+            result += chrTable[(data[i+1] & 0x0f) << 2];
+            result += pad;
+        } else {
+            result += chrTable[(data[i] & 0x03) << 4];
+            result += pad + pad;
+        }
+    }
+
+    return result;
+},
+
+/* Convert Base64 data to a string */
+toBinaryTable : [
+    -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+    -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+    -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
+    52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1,
+    -1, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
+    15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
+    -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
+    41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
+],
+
+decode: function (data, offset) {
+    "use strict";
+    offset = typeof(offset) !== 'undefined' ? offset : 0;
+    var binTable = Base64.toBinaryTable,
+        pad = Base64.base64Pad,
+        result, result_length, idx, i, c, padding,
+        leftbits = 0, // number of bits decoded, but yet to be appended
+        leftdata = 0, // bits decoded, but yet to be appended
+        data_length = data.indexOf('=') - offset;
+
+    if (data_length < 0) { data_length = data.length - offset; }
+
+    /* Every four characters is 3 resulting numbers */
+    result_length = (data_length >> 2) * 3 + Math.floor((data_length%4)/1.5);
+    result = new Array(result_length);
+
+    // Convert one by one.
+    for (idx = 0, i = offset; i < data.length; i++) {
+        c = binTable[data.charCodeAt(i) & 0x7f];
+        padding = (data.charAt(i) === pad);
+        // Skip illegal characters and whitespace
+        if (c === -1) {
+            console.error("Illegal character '" + data.charCodeAt(i) + "'");
+            continue;
+        }
+        
+        // Collect data into leftdata, update bitcount
+        leftdata = (leftdata << 6) | c;
+        leftbits += 6;
+
+        // If we have 8 or more bits, append 8 bits to the result
+        if (leftbits >= 8) {
+            leftbits -= 8;
+            // Append if not padding.
+            if (!padding) {
+                result[idx++] = (leftdata >> leftbits) & 0xff;
+            }
+            leftdata &= (1 << leftbits) - 1;
+        }
+    }
+
+    // If there are any bits left, the base64 string was corrupted
+    if (leftbits) {
+        throw {name: 'Base64-Error', 
+               message: 'Corrupted base64 string'};
+    }
+
+    return result;
+}
+
+}; /* End of Base64 namespace */

classes/novnc/include/black.css

@@ -0,0 +1,45 @@
+#keyboardinput {
+  background-color:#000;
+}
+
+#noVNC-control-bar {
+  background: #4c4c4c; /* Old browsers */
+  background: -moz-linear-gradient(top, #4c4c4c 0%, #2c2c2c 50%, #000000 51%, #131313 100%); /* FF3.6+ */
+  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4c4c4c), color-stop(50%,#2c2c2c), color-stop(51%,#000000), color-stop(100%,#131313)); /* Chrome,Safari4+ */
+  background: -webkit-linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* Chrome10+,Safari5.1+ */
+  background: -o-linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* Opera11.10+ */
+  background: -ms-linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* IE10+ */
+  background: linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* W3C */
+}
+
+.triangle-right {
+  border:2px solid #fff;
+  background:#000;
+  color:#fff;
+}
+
+.noVNC_status_button {
+  font-size: 12px;
+  vertical-align: middle;
+  border:1px solid #4c4c4c;
+
+  background: #4c4c4c; /* Old browsers */
+  background: -moz-linear-gradient(top, #4c4c4c 0%, #2c2c2c 50%, #000000 51%, #131313 100%); /* FF3.6+ */
+  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4c4c4c), color-stop(50%,#2c2c2c), color-stop(51%,#000000), color-stop(100%,#131313)); /* Chrome,Safari4+ */
+  background: -webkit-linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* Chrome10+,Safari5.1+ */
+  background: -o-linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* Opera11.10+ */
+  background: -ms-linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* IE10+ */
+  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4c4c4c', endColorstr='#131313',GradientType=0 ); /* IE6-9 */
+  background: linear-gradient(top, #4c4c4c 0%,#2c2c2c 50%,#000000 51%,#131313 100%); /* W3C */
+}
+
+.noVNC_status_button_selected {
+  background: #9dd53a; /* Old browsers */
+  background: -moz-linear-gradient(top, #9dd53a 0%, #a1d54f 50%, #80c217 51%, #7cbc0a 100%); /* FF3.6+ */
+  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#9dd53a), color-stop(50%,#a1d54f), color-stop(51%,#80c217), color-stop(100%,#7cbc0a)); /* Chrome,Safari4+ */
+  background: -webkit-linear-gradient(top, #9dd53a 0%,#a1d54f 50%,#80c217 51%,#7cbc0a 100%); /* Chrome10+,Safari5.1+ */
+  background: -o-linear-gradient(top, #9dd53a 0%,#a1d54f 50%,#80c217 51%,#7cbc0a 100%); /* Opera11.10+ */
+  background: -ms-linear-gradient(top, #9dd53a 0%,#a1d54f 50%,#80c217 51%,#7cbc0a 100%); /* IE10+ */
+  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#9dd53a', endColorstr='#7cbc0a',GradientType=0 ); /* IE6-9 */
+  background: linear-gradient(top, #9dd53a 0%,#a1d54f 50%,#80c217 51%,#7cbc0a 100%); /* W3C */
+}

classes/novnc/include/blue.css

@@ -0,0 +1,27 @@
+
+#noVNC-control-bar {
+  background-color:#04073d;
+  background-image: -webkit-gradient(
+    linear,
+    left bottom,
+    left top,
+    color-stop(0.54, rgb(10,15,79)),
+    color-stop(0.5, rgb(4,7,61))
+  );
+  background-image: -moz-linear-gradient(
+    center bottom,
+    rgb(10,15,79) 54%,
+    rgb(4,7,61) 50%
+  );
+}
+
+.triangle-right {
+  border:2px solid #fff;
+  background:#04073d;
+  color:#fff;
+}
+
+#keyboardinput {
+  background-color:#04073d;
+}
+

classes/novnc/include/des.js

@@ -0,0 +1,273 @@
+/*
+ * Ported from Flashlight VNC ActionScript implementation:
+ *     http://www.wizhelp.com/flashlight-vnc/
+ *
+ * Full attribution follows:
+ *
+ * -------------------------------------------------------------------------
+ *
+ * This DES class has been extracted from package Acme.Crypto for use in VNC.
+ * The unnecessary odd parity code has been removed.
+ *
+ * These changes are:
+ *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+ *
+ * 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.
+ *
+
+ * DesCipher - the DES encryption method
+ *
+ * The meat of this code is by Dave Zimmerman <dzimm@widget.com>, and is:
+ *
+ * Copyright (c) 1996 Widget Workshop, Inc. All Rights Reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * and its documentation for NON-COMMERCIAL or COMMERCIAL purposes and
+ * without fee is hereby granted, provided that this copyright notice is kept 
+ * intact. 
+ * 
+ * WIDGET WORKSHOP MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY
+ * OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+ * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WIDGET WORKSHOP SHALL NOT BE LIABLE
+ * FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ * 
+ * THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
+ * CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
+ * PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
+ * NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
+ * SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
+ * SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
+ * PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES").  WIDGET WORKSHOP
+ * SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
+ * HIGH RISK ACTIVITIES.
+ *
+ *
+ * The rest is:
+ *
+ * Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Visit the ACME Labs Java page for up-to-date versions of this and other
+ * fine Java utilities: http://www.acme.com/java/
+ */
+
+"use strict";
+/*jslint white: false, bitwise: false, plusplus: false */
+
+function DES(passwd) {
+
+// Tables, permutations, S-boxes, etc.
+var PC2 = [13,16,10,23, 0, 4, 2,27,14, 5,20, 9,22,18,11, 3,
+           25, 7,15, 6,26,19,12, 1,40,51,30,36,46,54,29,39,
+           50,44,32,47,43,48,38,55,33,52,45,41,49,35,28,31 ],
+    totrot = [ 1, 2, 4, 6, 8,10,12,14,15,17,19,21,23,25,27,28],
+    z = 0x0, a,b,c,d,e,f, SP1,SP2,SP3,SP4,SP5,SP6,SP7,SP8,
+    keys = [];
+
+a=1<<16; b=1<<24; c=a|b; d=1<<2; e=1<<10; f=d|e;
+SP1 = [c|e,z|z,a|z,c|f,c|d,a|f,z|d,a|z,z|e,c|e,c|f,z|e,b|f,c|d,b|z,z|d,
+       z|f,b|e,b|e,a|e,a|e,c|z,c|z,b|f,a|d,b|d,b|d,a|d,z|z,z|f,a|f,b|z,
+       a|z,c|f,z|d,c|z,c|e,b|z,b|z,z|e,c|d,a|z,a|e,b|d,z|e,z|d,b|f,a|f,
+       c|f,a|d,c|z,b|f,b|d,z|f,a|f,c|e,z|f,b|e,b|e,z|z,a|d,a|e,z|z,c|d];
+a=1<<20; b=1<<31; c=a|b; d=1<<5; e=1<<15; f=d|e;
+SP2 = [c|f,b|e,z|e,a|f,a|z,z|d,c|d,b|f,b|d,c|f,c|e,b|z,b|e,a|z,z|d,c|d,
+       a|e,a|d,b|f,z|z,b|z,z|e,a|f,c|z,a|d,b|d,z|z,a|e,z|f,c|e,c|z,z|f,
+       z|z,a|f,c|d,a|z,b|f,c|z,c|e,z|e,c|z,b|e,z|d,c|f,a|f,z|d,z|e,b|z,
+       z|f,c|e,a|z,b|d,a|d,b|f,b|d,a|d,a|e,z|z,b|e,z|f,b|z,c|d,c|f,a|e];
+a=1<<17; b=1<<27; c=a|b; d=1<<3; e=1<<9; f=d|e;
+SP3 = [z|f,c|e,z|z,c|d,b|e,z|z,a|f,b|e,a|d,b|d,b|d,a|z,c|f,a|d,c|z,z|f,
+       b|z,z|d,c|e,z|e,a|e,c|z,c|d,a|f,b|f,a|e,a|z,b|f,z|d,c|f,z|e,b|z,
+       c|e,b|z,a|d,z|f,a|z,c|e,b|e,z|z,z|e,a|d,c|f,b|e,b|d,z|e,z|z,c|d,
+       b|f,a|z,b|z,c|f,z|d,a|f,a|e,b|d,c|z,b|f,z|f,c|z,a|f,z|d,c|d,a|e];
+a=1<<13; b=1<<23; c=a|b; d=1<<0; e=1<<7; f=d|e;
+SP4 = [c|d,a|f,a|f,z|e,c|e,b|f,b|d,a|d,z|z,c|z,c|z,c|f,z|f,z|z,b|e,b|d,
+       z|d,a|z,b|z,c|d,z|e,b|z,a|d,a|e,b|f,z|d,a|e,b|e,a|z,c|e,c|f,z|f,
+       b|e,b|d,c|z,c|f,z|f,z|z,z|z,c|z,a|e,b|e,b|f,z|d,c|d,a|f,a|f,z|e,
+       c|f,z|f,z|d,a|z,b|d,a|d,c|e,b|f,a|d,a|e,b|z,c|d,z|e,b|z,a|z,c|e];
+a=1<<25; b=1<<30; c=a|b; d=1<<8; e=1<<19; f=d|e;
+SP5 = [z|d,a|f,a|e,c|d,z|e,z|d,b|z,a|e,b|f,z|e,a|d,b|f,c|d,c|e,z|f,b|z,
+       a|z,b|e,b|e,z|z,b|d,c|f,c|f,a|d,c|e,b|d,z|z,c|z,a|f,a|z,c|z,z|f,
+       z|e,c|d,z|d,a|z,b|z,a|e,c|d,b|f,a|d,b|z,c|e,a|f,b|f,z|d,a|z,c|e,
+       c|f,z|f,c|z,c|f,a|e,z|z,b|e,c|z,z|f,a|d,b|d,z|e,z|z,b|e,a|f,b|d];
+a=1<<22; b=1<<29; c=a|b; d=1<<4; e=1<<14; f=d|e;
+SP6 = [b|d,c|z,z|e,c|f,c|z,z|d,c|f,a|z,b|e,a|f,a|z,b|d,a|d,b|e,b|z,z|f,
+       z|z,a|d,b|f,z|e,a|e,b|f,z|d,c|d,c|d,z|z,a|f,c|e,z|f,a|e,c|e,b|z,
+       b|e,z|d,c|d,a|e,c|f,a|z,z|f,b|d,a|z,b|e,b|z,z|f,b|d,c|f,a|e,c|z,
+       a|f,c|e,z|z,c|d,z|d,z|e,c|z,a|f,z|e,a|d,b|f,z|z,c|e,b|z,a|d,b|f];
+a=1<<21; b=1<<26; c=a|b; d=1<<1; e=1<<11; f=d|e;
+SP7 = [a|z,c|d,b|f,z|z,z|e,b|f,a|f,c|e,c|f,a|z,z|z,b|d,z|d,b|z,c|d,z|f,
+       b|e,a|f,a|d,b|e,b|d,c|z,c|e,a|d,c|z,z|e,z|f,c|f,a|e,z|d,b|z,a|e,
+       b|z,a|e,a|z,b|f,b|f,c|d,c|d,z|d,a|d,b|z,b|e,a|z,c|e,z|f,a|f,c|e,
+       z|f,b|d,c|f,c|z,a|e,z|z,z|d,c|f,z|z,a|f,c|z,z|e,b|d,b|e,z|e,a|d];
+a=1<<18; b=1<<28; c=a|b; d=1<<6; e=1<<12; f=d|e;
+SP8 = [b|f,z|e,a|z,c|f,b|z,b|f,z|d,b|z,a|d,c|z,c|f,a|e,c|e,a|f,z|e,z|d,
+       c|z,b|d,b|e,z|f,a|e,a|d,c|d,c|e,z|f,z|z,z|z,c|d,b|d,b|e,a|f,a|z,
+       a|f,a|z,c|e,z|e,z|d,c|d,z|e,a|f,b|e,z|d,b|d,c|z,c|d,b|z,a|z,b|f,
+       z|z,c|f,a|d,b|d,c|z,b|e,b|f,z|z,c|f,a|e,a|e,z|f,z|f,a|d,b|z,c|e];
+
+// Set the key.
+function setKeys(keyBlock) {
+    var i, j, l, m, n, o, pc1m = [], pcr = [], kn = [],
+        raw0, raw1, rawi, KnLi;
+
+    for (j = 0, l = 56; j < 56; ++j, l-=8) {
+        l += l<-5 ? 65 : l<-3 ? 31 : l<-1 ? 63 : l===27 ? 35 : 0; // PC1
+        m = l & 0x7;
+        pc1m[j] = ((keyBlock[l >>> 3] & (1<<m)) !== 0) ? 1: 0;
+    }
+
+    for (i = 0; i < 16; ++i) {
+        m = i << 1;
+        n = m + 1;
+        kn[m] = kn[n] = 0;
+        for (o=28; o<59; o+=28) {
+            for (j = o-28; j < o; ++j) {
+                l = j + totrot[i];
+                if (l < o) {
+                    pcr[j] = pc1m[l];
+                } else {
+                    pcr[j] = pc1m[l - 28];
+                }
+            }
+        }
+        for (j = 0; j < 24; ++j) {
+            if (pcr[PC2[j]] !== 0) {
+                kn[m] |= 1<<(23-j);
+            }
+            if (pcr[PC2[j + 24]] !== 0) {
+                kn[n] |= 1<<(23-j);
+            }
+        }
+    }
+
+    // cookey
+    for (i = 0, rawi = 0, KnLi = 0; i < 16; ++i) {
+        raw0 = kn[rawi++];
+        raw1 = kn[rawi++];
+        keys[KnLi] = (raw0 & 0x00fc0000) << 6;
+        keys[KnLi] |= (raw0 & 0x00000fc0) << 10;
+        keys[KnLi] |= (raw1 & 0x00fc0000) >>> 10;
+        keys[KnLi] |= (raw1 & 0x00000fc0) >>> 6;
+        ++KnLi;
+        keys[KnLi] = (raw0 & 0x0003f000) << 12;
+        keys[KnLi] |= (raw0 & 0x0000003f) << 16;
+        keys[KnLi] |= (raw1 & 0x0003f000) >>> 4;
+        keys[KnLi] |= (raw1 & 0x0000003f);
+        ++KnLi;
+    }
+}
+
+// Encrypt 8 bytes of text
+function enc8(text) {
+    var i = 0, b = text.slice(), fval, keysi = 0,
+        l, r, x; // left, right, accumulator
+
+    // Squash 8 bytes to 2 ints
+    l = b[i++]<<24 | b[i++]<<16 | b[i++]<<8 | b[i++];
+    r = b[i++]<<24 | b[i++]<<16 | b[i++]<<8 | b[i++];
+
+    x = ((l >>> 4) ^ r) & 0x0f0f0f0f;
+    r ^= x;
+    l ^= (x << 4);
+    x = ((l >>> 16) ^ r) & 0x0000ffff;
+    r ^= x;
+    l ^= (x << 16);
+    x = ((r >>> 2) ^ l) & 0x33333333;
+    l ^= x;
+    r ^= (x << 2);
+    x = ((r >>> 8) ^ l) & 0x00ff00ff;
+    l ^= x;
+    r ^= (x << 8);
+    r = (r << 1) | ((r >>> 31) & 1);
+    x = (l ^ r) & 0xaaaaaaaa;
+    l ^= x;
+    r ^= x;
+    l = (l << 1) | ((l >>> 31) & 1);
+
+    for (i = 0; i < 8; ++i) {
+        x = (r << 28) | (r >>> 4);
+        x ^= keys[keysi++];
+        fval =  SP7[x & 0x3f];
+        fval |= SP5[(x >>> 8) & 0x3f];
+        fval |= SP3[(x >>> 16) & 0x3f];
+        fval |= SP1[(x >>> 24) & 0x3f];
+        x = r ^ keys[keysi++];
+        fval |= SP8[x & 0x3f];
+        fval |= SP6[(x >>> 8) & 0x3f];
+        fval |= SP4[(x >>> 16) & 0x3f];
+        fval |= SP2[(x >>> 24) & 0x3f];
+        l ^= fval;
+        x = (l << 28) | (l >>> 4);
+        x ^= keys[keysi++];
+        fval =  SP7[x & 0x3f];
+        fval |= SP5[(x >>> 8) & 0x3f];
+        fval |= SP3[(x >>> 16) & 0x3f];
+        fval |= SP1[(x >>> 24) & 0x3f];
+        x = l ^ keys[keysi++];
+        fval |= SP8[x & 0x0000003f];
+        fval |= SP6[(x >>> 8) & 0x3f];
+        fval |= SP4[(x >>> 16) & 0x3f];
+        fval |= SP2[(x >>> 24) & 0x3f];
+        r ^= fval;
+    }
+
+    r = (r << 31) | (r >>> 1);
+    x = (l ^ r) & 0xaaaaaaaa;
+    l ^= x;
+    r ^= x;
+    l = (l << 31) | (l >>> 1);
+    x = ((l >>> 8) ^ r) & 0x00ff00ff;
+    r ^= x;
+    l ^= (x << 8);
+    x = ((l >>> 2) ^ r) & 0x33333333;
+    r ^= x;
+    l ^= (x << 2);
+    x = ((r >>> 16) ^ l) & 0x0000ffff;
+    l ^= x;
+    r ^= (x << 16);
+    x = ((r >>> 4) ^ l) & 0x0f0f0f0f;
+    l ^= x;
+    r ^= (x << 4);
+
+    // Spread ints to bytes
+    x = [r, l];
+    for (i = 0; i < 8; i++) {
+        b[i] = (x[i>>>2] >>> (8*(3 - (i%4)))) % 256;
+        if (b[i] < 0) { b[i] += 256; } // unsigned
+    }
+    return b;
+}
+
+// Encrypt 16 bytes of text using passwd as key
+function encrypt(t) {
+    return enc8(t.slice(0,8)).concat(enc8(t.slice(8,16)));
+}
+
+setKeys(passwd);             // Setup keys
+return {'encrypt': encrypt}; // Public interface
+
+} // function DES

classes/novnc/include/display.js

@@ -0,0 +1,671 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+/*jslint browser: true, white: false, bitwise: false */
+/*global Util, Base64, changeCursor */
+
+function Display(defaults) {
+"use strict";
+
+var that           = {},  // Public API methods
+    conf           = {},  // Configuration attributes
+
+    // Private Display namespace variables
+    c_ctx          = null,
+    c_forceCanvas  = false,
+
+    // Predefine function variables (jslint)
+    imageDataGet, rgbxImageData, cmapImageData,
+    setFillColor, rescale,
+
+    // The full frame buffer (logical canvas) size
+    fb_width        = 0,
+    fb_height       = 0,
+    // The visible "physical canvas" viewport
+    viewport       = {'x': 0, 'y': 0, 'w' : 0, 'h' : 0 },
+    cleanRect      = {'x1': 0, 'y1': 0, 'x2': -1, 'y2': -1},
+
+    c_prevStyle    = "",
+    tile           = null,
+    tile16x16      = null,
+    tile_x         = 0,
+    tile_y         = 0;
+
+
+// Configuration attributes
+Util.conf_defaults(conf, that, defaults, [
+    ['target',      'wo', 'dom',  null, 'Canvas element for rendering'],
+    ['context',     'ro', 'raw',  null, 'Canvas 2D context for rendering (read-only)'],
+    ['logo',        'rw', 'raw',  null, 'Logo to display when cleared: {"width": width, "height": height, "data": data}'],
+    ['true_color',  'rw', 'bool', true, 'Use true-color pixel data'],
+    ['colourMap',   'rw', 'arr',  [], 'Colour map array (when not true-color)'],
+    ['scale',       'rw', 'float', 1.0, 'Display area scale factor 0.0 - 1.0'],
+    ['viewport',    'rw', 'bool', false, 'Use a viewport set with viewportChange()'],
+    ['width',       'rw', 'int', null, 'Display area width'],
+    ['height',      'rw', 'int', null, 'Display area height'],
+
+    ['render_mode', 'ro', 'str', '', 'Canvas rendering mode (read-only)'],
+
+    ['prefer_js',   'rw', 'str', null, 'Prefer Javascript over canvas methods'],
+    ['cursor_uri',  'rw', 'raw', null, 'Can we render cursor using data URI']
+    ]);
+
+// Override some specific getters/setters
+that.get_context = function () { return c_ctx; };
+
+that.set_scale = function(scale) { rescale(scale); };
+
+that.set_width = function (val) { that.resize(val, fb_height); };
+that.get_width = function() { return fb_width; };
+
+that.set_height = function (val) { that.resize(fb_width, val); };
+that.get_height = function() { return fb_height; };
+
+
+
+//
+// Private functions
+//
+
+// Create the public API interface
+function constructor() {
+    Util.Debug(">> Display.constructor");
+
+    var c, func, i, curDat, curSave,
+        has_imageData = false, UE = Util.Engine;
+
+    if (! conf.target) { throw("target must be set"); }
+
+    if (typeof conf.target === 'string') {
+        throw("target must be a DOM element");
+    }
+
+    c = conf.target;
+
+    if (! c.getContext) { throw("no getContext method"); }
+
+    if (! c_ctx) { c_ctx = c.getContext('2d'); }
+
+    Util.Debug("User Agent: " + navigator.userAgent);
+    if (UE.gecko) { Util.Debug("Browser: gecko " + UE.gecko); }
+    if (UE.webkit) { Util.Debug("Browser: webkit " + UE.webkit); }
+    if (UE.trident) { Util.Debug("Browser: trident " + UE.trident); }
+    if (UE.presto) { Util.Debug("Browser: presto " + UE.presto); }
+
+    that.clear();
+
+    // Check canvas features
+    if ('createImageData' in c_ctx) {
+        conf.render_mode = "canvas rendering";
+    } else {
+        throw("Canvas does not support createImageData");
+    }
+    if (conf.prefer_js === null) {
+        Util.Info("Prefering javascript operations");
+        conf.prefer_js = true;
+    }
+
+    // Initialize cached tile imageData
+    tile16x16 = c_ctx.createImageData(16, 16);
+
+    /*
+     * Determine browser support for setting the cursor via data URI
+     * scheme
+     */
+    curDat = [];
+    for (i=0; i < 8 * 8 * 4; i += 1) {
+        curDat.push(255);
+    }
+    try {
+        curSave = c.style.cursor;
+        changeCursor(conf.target, curDat, curDat, 2, 2, 8, 8);
+        if (c.style.cursor) {
+            if (conf.cursor_uri === null) {
+                conf.cursor_uri = true;
+            }
+            Util.Info("Data URI scheme cursor supported");
+        } else {
+            if (conf.cursor_uri === null) {
+                conf.cursor_uri = false;
+            }
+            Util.Warn("Data URI scheme cursor not supported");
+        }
+        c.style.cursor = curSave;
+    } catch (exc2) { 
+        Util.Error("Data URI scheme cursor test exception: " + exc2);
+        conf.cursor_uri = false;
+    }
+
+    Util.Debug("<< Display.constructor");
+    return that ;
+}
+
+rescale = function(factor) {
+    var c, tp, x, y, 
+        properties = ['transform', 'WebkitTransform', 'MozTransform', null];
+    c = conf.target;
+    tp = properties.shift();
+    while (tp) {
+        if (typeof c.style[tp] !== 'undefined') {
+            break;
+        }
+        tp = properties.shift();
+    }
+
+    if (tp === null) {
+        Util.Debug("No scaling support");
+        return;
+    }
+
+
+    if (typeof(factor) === "undefined") {
+        factor = conf.scale;
+    } else if (factor > 1.0) {
+        factor = 1.0;
+    } else if (factor < 0.1) {
+        factor = 0.1;
+    }
+
+    if (conf.scale === factor) {
+        //Util.Debug("Display already scaled to '" + factor + "'");
+        return;
+    }
+
+    conf.scale = factor;
+    x = c.width - c.width * factor;
+    y = c.height - c.height * factor;
+    c.style[tp] = "scale(" + conf.scale + ") translate(-" + x + "px, -" + y + "px)";
+};
+
+setFillColor = function(color) {
+    var rgb, newStyle;
+    if (conf.true_color) {
+        rgb = color;
+    } else {
+        rgb = conf.colourMap[color[0]];
+    }
+    newStyle = "rgb(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + ")";
+    if (newStyle !== c_prevStyle) {
+        c_ctx.fillStyle = newStyle;
+        c_prevStyle = newStyle;
+    }
+};
+
+
+//
+// Public API interface functions
+//
+
+// Shift and/or resize the visible viewport
+that.viewportChange = function(deltaX, deltaY, width, height) {
+    var c = conf.target, v = viewport, cr = cleanRect,
+        saveImg = null, saveStyle, x1, y1, vx2, vy2, w, h;
+
+    if (!conf.viewport) {
+        Util.Debug("Setting viewport to full display region");
+        deltaX = -v.w; // Clamped later if out of bounds
+        deltaY = -v.h; // Clamped later if out of bounds
+        width = fb_width;
+        height = fb_height;
+    }
+
+    if (typeof(deltaX) === "undefined") { deltaX = 0; }
+    if (typeof(deltaY) === "undefined") { deltaY = 0; }
+    if (typeof(width) === "undefined") { width = v.w; }
+    if (typeof(height) === "undefined") { height = v.h; }
+
+    // Size change
+
+    if (width > fb_width) { width = fb_width; }
+    if (height > fb_height) { height = fb_height; }
+
+    if ((v.w !== width) || (v.h !== height)) {
+        // Change width
+        if ((width < v.w) && (cr.x2 > v.x + width -1)) {
+            cr.x2 = v.x + width - 1;
+        }
+        v.w = width;
+
+        // Change height
+        if ((height < v.h) && (cr.y2 > v.y + height -1)) {
+            cr.y2 = v.y + height - 1;
+        }
+        v.h = height;
+
+
+        if (v.w > 0 && v.h > 0 && c.width > 0 && c.height > 0) {
+            saveImg = c_ctx.getImageData(0, 0,
+                    (c.width < v.w) ? c.width : v.w,
+                    (c.height < v.h) ? c.height : v.h);
+        }
+
+        c.width = v.w;
+        c.height = v.h;
+
+        if (saveImg) {
+            c_ctx.putImageData(saveImg, 0, 0);
+        }
+    }
+
+    vx2 = v.x + v.w - 1;
+    vy2 = v.y + v.h - 1;
+
+
+    // Position change
+
+    if ((deltaX < 0) && ((v.x + deltaX) < 0)) {
+        deltaX = - v.x;
+    }
+    if ((vx2 + deltaX) >= fb_width) {
+        deltaX -= ((vx2 + deltaX) - fb_width + 1);
+    }
+
+    if ((v.y + deltaY) < 0) {
+        deltaY = - v.y;
+    }
+    if ((vy2 + deltaY) >= fb_height) {
+        deltaY -= ((vy2 + deltaY) - fb_height + 1);
+    }
+
+    if ((deltaX === 0) && (deltaY === 0)) {
+        //Util.Debug("skipping viewport change");
+        return;
+    }
+    Util.Debug("viewportChange deltaX: " + deltaX + ", deltaY: " + deltaY);
+
+    v.x += deltaX;
+    vx2 += deltaX;
+    v.y += deltaY;
+    vy2 += deltaY;
+
+    // Update the clean rectangle
+    if (v.x > cr.x1) {
+        cr.x1 = v.x;
+    }
+    if (vx2 < cr.x2) {
+        cr.x2 = vx2;
+    }
+    if (v.y > cr.y1) {
+        cr.y1 = v.y;
+    }
+    if (vy2 < cr.y2) {
+        cr.y2 = vy2;
+    }
+
+    if (deltaX < 0) {
+        // Shift viewport left, redraw left section
+        x1 = 0;
+        w = - deltaX;
+    } else {
+        // Shift viewport right, redraw right section
+        x1 = v.w - deltaX;
+        w = deltaX;
+    }
+    if (deltaY < 0) {
+        // Shift viewport up, redraw top section
+        y1 = 0;
+        h = - deltaY;
+    } else {
+        // Shift viewport down, redraw bottom section
+        y1 = v.h - deltaY;
+        h = deltaY;
+    }
+
+    // Copy the valid part of the viewport to the shifted location
+    saveStyle = c_ctx.fillStyle;
+    c_ctx.fillStyle = "rgb(255,255,255)";
+    if (deltaX !== 0) {
+        //that.copyImage(0, 0, -deltaX, 0, v.w, v.h);
+        //that.fillRect(x1, 0, w, v.h, [255,255,255]);
+        c_ctx.drawImage(c, 0, 0, v.w, v.h, -deltaX, 0, v.w, v.h);
+        c_ctx.fillRect(x1, 0, w, v.h);
+    }
+    if (deltaY !== 0) {
+        //that.copyImage(0, 0, 0, -deltaY, v.w, v.h);
+        //that.fillRect(0, y1, v.w, h, [255,255,255]);
+        c_ctx.drawImage(c, 0, 0, v.w, v.h, 0, -deltaY, v.w, v.h);
+        c_ctx.fillRect(0, y1, v.w, h);
+    }
+    c_ctx.fillStyle = saveStyle;
+};
+
+
+// Return a map of clean and dirty areas of the viewport and reset the
+// tracking of clean and dirty areas.
+//
+// Returns: {'cleanBox':   {'x': x, 'y': y, 'w': w, 'h': h},
+//           'dirtyBoxes': [{'x': x, 'y': y, 'w': w, 'h': h}, ...]}
+that.getCleanDirtyReset = function() {
+    var v = viewport, c = cleanRect, cleanBox, dirtyBoxes = [],
+        vx2 = v.x + v.w - 1, vy2 = v.y + v.h - 1;
+
+
+    // Copy the cleanRect
+    cleanBox = {'x': c.x1, 'y': c.y1,
+                'w': c.x2 - c.x1 + 1, 'h': c.y2 - c.y1 + 1};
+
+    if ((c.x1 >= c.x2) || (c.y1 >= c.y2)) {
+        // Whole viewport is dirty
+        dirtyBoxes.push({'x': v.x, 'y': v.y, 'w': v.w, 'h': v.h});
+    } else {
+        // Redraw dirty regions
+        if (v.x < c.x1) {
+            // left side dirty region
+            dirtyBoxes.push({'x': v.x, 'y': v.y,
+                             'w': c.x1 - v.x + 1, 'h': v.h});
+        }
+        if (vx2 > c.x2) {
+            // right side dirty region
+            dirtyBoxes.push({'x': c.x2 + 1, 'y': v.y,
+                             'w': vx2 - c.x2, 'h': v.h});
+        }
+        if (v.y < c.y1) {
+            // top/middle dirty region
+            dirtyBoxes.push({'x': c.x1, 'y': v.y,
+                             'w': c.x2 - c.x1 + 1, 'h': c.y1 - v.y});
+        }
+        if (vy2 > c.y2) {
+            // bottom/middle dirty region
+            dirtyBoxes.push({'x': c.x1, 'y': c.y2 + 1,
+                             'w': c.x2 - c.x1 + 1, 'h': vy2 - c.y2});
+        }
+    }
+
+    // Reset the cleanRect to the whole viewport
+    cleanRect = {'x1': v.x, 'y1': v.y,
+                 'x2': v.x + v.w - 1, 'y2': v.y + v.h - 1};
+
+    return {'cleanBox': cleanBox, 'dirtyBoxes': dirtyBoxes};
+};
+
+// Translate viewport coordinates to absolute coordinates
+that.absX = function(x) {
+    return x + viewport.x;
+}
+that.absY = function(y) {
+    return y + viewport.y;
+}
+
+
+that.resize = function(width, height) {
+    c_prevStyle    = "";
+
+    fb_width = width;
+    fb_height = height;
+
+    rescale(conf.scale);
+    that.viewportChange();
+};
+
+that.clear = function() {
+
+    if (conf.logo) {
+        that.resize(conf.logo.width, conf.logo.height);
+        that.blitStringImage(conf.logo.data, 0, 0);
+    } else {
+        that.resize(640, 20);
+        c_ctx.clearRect(0, 0, viewport.w, viewport.h);
+    }
+
+    // No benefit over default ("source-over") in Chrome and firefox
+    //c_ctx.globalCompositeOperation = "copy";
+};
+
+that.fillRect = function(x, y, width, height, color) {
+    setFillColor(color);
+    c_ctx.fillRect(x - viewport.x, y - viewport.y, width, height);
+};
+
+that.copyImage = function(old_x, old_y, new_x, new_y, w, h) {
+    var x1 = old_x - viewport.x, y1 = old_y - viewport.y,
+        x2 = new_x - viewport.x, y2 = new_y  - viewport.y;
+    c_ctx.drawImage(conf.target, x1, y1, w, h, x2, y2, w, h);
+};
+
+
+// Start updating a tile
+that.startTile = function(x, y, width, height, color) {
+    var data, rgb, red, green, blue, i;
+    tile_x = x;
+    tile_y = y;
+    if ((width === 16) && (height === 16)) {
+        tile = tile16x16;
+    } else {
+        tile = c_ctx.createImageData(width, height);
+    }
+    data = tile.data;
+    if (conf.prefer_js) {
+        if (conf.true_color) {
+            rgb = color;
+        } else {
+            rgb = conf.colourMap[color[0]];
+        }
+        red = rgb[0];
+        green = rgb[1];
+        blue = rgb[2];
+        for (i = 0; i < (width * height * 4); i+=4) {
+            data[i    ] = red;
+            data[i + 1] = green;
+            data[i + 2] = blue;
+            data[i + 3] = 255;
+        }
+    } else {
+        that.fillRect(x, y, width, height, color);
+    }
+};
+
+// Update sub-rectangle of the current tile
+that.subTile = function(x, y, w, h, color) {
+    var data, p, rgb, red, green, blue, width, j, i, xend, yend;
+    if (conf.prefer_js) {
+        data = tile.data;
+        width = tile.width;
+        if (conf.true_color) {
+            rgb = color;
+        } else {
+            rgb = conf.colourMap[color[0]];
+        }
+        red = rgb[0];
+        green = rgb[1];
+        blue = rgb[2];
+        xend = x + w;
+        yend = y + h;
+        for (j = y; j < yend; j += 1) {
+            for (i = x; i < xend; i += 1) {
+                p = (i + (j * width) ) * 4;
+                data[p    ] = red;
+                data[p + 1] = green;
+                data[p + 2] = blue;
+                data[p + 3] = 255;
+            }   
+        } 
+    } else {
+        that.fillRect(tile_x + x, tile_y + y, w, h, color);
+    }
+};
+
+// Draw the current tile to the screen
+that.finishTile = function() {
+    if (conf.prefer_js) {
+        c_ctx.putImageData(tile, tile_x - viewport.x, tile_y - viewport.y)
+    }
+    // else: No-op, if not prefer_js then already done by setSubTile
+};
+
+rgbxImageData = function(x, y, width, height, arr, offset) {
+    var img, i, j, data, v = viewport;
+    /*
+    if ((x - v.x >= v.w) || (y - v.y >= v.h) ||
+        (x - v.x + width < 0) || (y - v.y + height < 0)) {
+        // Skipping because outside of viewport
+        return;
+    }
+    */
+    img = c_ctx.createImageData(width, height);
+    data = img.data;
+    for (i=0, j=offset; i < (width * height * 4); i=i+4, j=j+4) {
+        data[i    ] = arr[j    ];
+        data[i + 1] = arr[j + 1];
+        data[i + 2] = arr[j + 2];
+        data[i + 3] = 255; // Set Alpha
+    }
+    c_ctx.putImageData(img, x - v.x, y - v.y);
+};
+
+cmapImageData = function(x, y, width, height, arr, offset) {
+    var img, i, j, data, rgb, cmap;
+    img = c_ctx.createImageData(width, height);
+    data = img.data;
+    cmap = conf.colourMap;
+    for (i=0, j=offset; i < (width * height * 4); i+=4, j+=1) {
+        rgb = cmap[arr[j]];
+        data[i    ] = rgb[0];
+        data[i + 1] = rgb[1];
+        data[i + 2] = rgb[2];
+        data[i + 3] = 255; // Set Alpha
+    }
+    c_ctx.putImageData(img, x - viewport.x, y - viewport.y);
+};
+
+that.blitImage = function(x, y, width, height, arr, offset) {
+    if (conf.true_color) {
+        rgbxImageData(x, y, width, height, arr, offset);
+    } else {
+        cmapImageData(x, y, width, height, arr, offset);
+    }
+};
+
+that.blitStringImage = function(str, x, y) {
+    var img = new Image();
+    img.onload = function () {
+        c_ctx.drawImage(img, x - viewport.x, y - viewport.y);
+    };
+    img.src = str;
+};
+
+that.changeCursor = function(pixels, mask, hotx, hoty, w, h) {
+    if (conf.cursor_uri === false) {
+        Util.Warn("changeCursor called but no cursor data URI support");
+        return;
+    }
+
+    if (conf.true_color) {
+        changeCursor(conf.target, pixels, mask, hotx, hoty, w, h);
+    } else {
+        changeCursor(conf.target, pixels, mask, hotx, hoty, w, h, conf.colourMap);
+    }
+};
+
+that.defaultCursor = function() {
+    conf.target.style.cursor = "default";
+};
+
+return constructor();  // Return the public API interface
+
+}  // End of Display()
+
+
+/* Set CSS cursor property using data URI encoded cursor file */
+function changeCursor(target, pixels, mask, hotx, hoty, w, h, cmap) {
+    "use strict";
+    var cur = [], rgb, IHDRsz, RGBsz, ANDsz, XORsz, url, idx, alpha, x, y;
+    //Util.Debug(">> changeCursor, x: " + hotx + ", y: " + hoty + ", w: " + w + ", h: " + h);
+    
+    // Push multi-byte little-endian values
+    cur.push16le = function (num) {
+        this.push((num     ) & 0xFF,
+                  (num >> 8) & 0xFF  );
+    };
+    cur.push32le = function (num) {
+        this.push((num      ) & 0xFF,
+                  (num >>  8) & 0xFF,
+                  (num >> 16) & 0xFF,
+                  (num >> 24) & 0xFF  );
+    };
+
+    IHDRsz = 40;
+    RGBsz = w * h * 4;
+    XORsz = Math.ceil( (w * h) / 8.0 );
+    ANDsz = Math.ceil( (w * h) / 8.0 );
+
+    // Main header
+    cur.push16le(0);      // 0: Reserved
+    cur.push16le(2);      // 2: .CUR type
+    cur.push16le(1);      // 4: Number of images, 1 for non-animated ico
+
+    // Cursor #1 header (ICONDIRENTRY)
+    cur.push(w);          // 6: width
+    cur.push(h);          // 7: height
+    cur.push(0);          // 8: colors, 0 -> true-color
+    cur.push(0);          // 9: reserved
+    cur.push16le(hotx);   // 10: hotspot x coordinate
+    cur.push16le(hoty);   // 12: hotspot y coordinate
+    cur.push32le(IHDRsz + RGBsz + XORsz + ANDsz);
+                          // 14: cursor data byte size
+    cur.push32le(22);     // 18: offset of cursor data in the file
+
+
+    // Cursor #1 InfoHeader (ICONIMAGE/BITMAPINFO)
+    cur.push32le(IHDRsz); // 22: Infoheader size
+    cur.push32le(w);      // 26: Cursor width
+    cur.push32le(h*2);    // 30: XOR+AND height
+    cur.push16le(1);      // 34: number of planes
+    cur.push16le(32);     // 36: bits per pixel
+    cur.push32le(0);      // 38: Type of compression
+
+    cur.push32le(XORsz + ANDsz); // 43: Size of Image
+                                 // Gimp leaves this as 0
+
+    cur.push32le(0);      // 46: reserved
+    cur.push32le(0);      // 50: reserved
+    cur.push32le(0);      // 54: reserved
+    cur.push32le(0);      // 58: reserved
+
+    // 62: color data (RGBQUAD icColors[])
+    for (y = h-1; y >= 0; y -= 1) {
+        for (x = 0; x < w; x += 1) {
+            idx = y * Math.ceil(w / 8) + Math.floor(x/8);
+            alpha = (mask[idx] << (x % 8)) & 0x80 ? 255 : 0;
+
+            if (cmap) {
+                idx = (w * y) + x;
+                rgb = cmap[pixels[idx]];
+                cur.push(rgb[2]);          // blue
+                cur.push(rgb[1]);          // green
+                cur.push(rgb[0]);          // red
+                cur.push(alpha);           // alpha
+            } else {
+                idx = ((w * y) + x) * 4;
+                cur.push(pixels[idx + 2]); // blue
+                cur.push(pixels[idx + 1]); // green
+                cur.push(pixels[idx    ]); // red
+                cur.push(alpha);           // alpha
+            }
+        }
+    }
+
+    // XOR/bitmask data (BYTE icXOR[])
+    // (ignored, just needs to be right size)
+    for (y = 0; y < h; y += 1) {
+        for (x = 0; x < Math.ceil(w / 8); x += 1) {
+            cur.push(0x00);
+        }
+    }
+
+    // AND/bitmask data (BYTE icAND[])
+    // (ignored, just needs to be right size)
+    for (y = 0; y < h; y += 1) {
+        for (x = 0; x < Math.ceil(w / 8); x += 1) {
+            cur.push(0x00);
+        }
+    }
+
+    url = "data:image/x-icon;base64," + Base64.encode(cur);
+    target.style.cursor = "url(" + url + ") " + hotx + " " + hoty + ", default";
+    //Util.Debug("<< changeCursor, cur.length: " + cur.length);
+}

classes/novnc/include/playback.js

@@ -0,0 +1,90 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.LGPL-3)
+ */
+
+"use strict";
+/*jslint browser: true, white: false */
+/*global Util, VNC_frame_data, finish */
+
+var rfb, mode, test_state, frame_idx, frame_length,
+    iteration, iterations, istart_time,
+
+    // Pre-declarations for jslint
+    send_array, next_iteration, queue_next_packet, do_packet;
+
+// Override send_array
+send_array = function (arr) {
+    // Stub out send_array
+};
+
+next_iteration = function () {
+    if (iteration === 0) {
+        frame_length = VNC_frame_data.length;
+        test_state = 'running';
+    } else {
+        rfb.disconnect();
+    }
+    
+    if (test_state !== 'running') { return; }
+
+    iteration += 1;
+    if (iteration > iterations) {
+        finish();
+        return;
+    }
+
+    frame_idx = 0;
+    istart_time = (new Date()).getTime();
+    rfb.connect('test', 0, "bogus");
+
+    queue_next_packet();
+
+};
+
+queue_next_packet = function () {
+    var frame, foffset, toffset, delay;
+    if (test_state !== 'running') { return; }
+
+    frame = VNC_frame_data[frame_idx];
+    while ((frame_idx < frame_length) && (frame.charAt(0) === "}")) {
+        //Util.Debug("Send frame " + frame_idx);
+        frame_idx += 1;
+        frame = VNC_frame_data[frame_idx];
+    }
+
+    if (frame === 'EOF') {
+        Util.Debug("Finished, found EOF");
+        next_iteration();
+        return;
+    }
+    if (frame_idx >= frame_length) {
+        Util.Debug("Finished, no more frames");
+        next_iteration();
+        return;
+    }
+
+    if (mode === 'realtime') {
+        foffset = frame.slice(1, frame.indexOf('{', 1));
+        toffset = (new Date()).getTime() - istart_time;
+        delay = foffset - toffset;
+        if (delay < 1) {
+            delay = 1;
+        }
+
+        setTimeout(do_packet, delay);
+    } else {
+        setTimeout(do_packet, 1);
+    }
+};
+
+do_packet = function () {
+    //Util.Debug("Processing frame: " + frame_idx);
+    var frame = VNC_frame_data[frame_idx];
+    rfb.recv_message({'data' : frame.slice(frame.indexOf('{', 1) + 1)});
+    frame_idx += 1;
+
+    queue_next_packet();
+};
+

classes/novnc/include/ui.js

@@ -0,0 +1,629 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+"use strict";
+/*jslint white: false, browser: true */
+/*global window, $D, Util, WebUtil, RFB, Display */
+
+var UI = {
+
+rfb_state : 'loaded',
+settingsOpen : false,
+connSettingsOpen : true,
+clipboardOpen: false,
+keyboardVisible: false,
+
+// Render default UI and initialize settings menu
+load: function() {
+    var html = '', i, sheet, sheets, llevels;
+
+    // Stylesheet selection dropdown
+    sheet = WebUtil.selectStylesheet();
+    sheets = WebUtil.getStylesheets();
+    for (i = 0; i < sheets.length; i += 1) {
+        UI.addOption($D('noVNC_stylesheet'),sheets[i].title, sheets[i].title);
+    }
+
+    // Logging selection dropdown
+    llevels = ['error', 'warn', 'info', 'debug'];
+    for (i = 0; i < llevels.length; i += 1) {
+        UI.addOption($D('noVNC_logging'),llevels[i], llevels[i]);
+    }
+
+    // Settings with immediate effects
+    UI.initSetting('logging', 'warn');
+    WebUtil.init_logging(UI.getSetting('logging'));
+
+    UI.initSetting('stylesheet', 'default');
+    WebUtil.selectStylesheet(null);
+    // call twice to get around webkit bug
+    WebUtil.selectStylesheet(UI.getSetting('stylesheet'));
+
+    /* Populate the controls if defaults are provided in the URL */
+    UI.initSetting('host', '');
+    UI.initSetting('port', '');
+    UI.initSetting('password', '');
+    UI.initSetting('encrypt', false);
+    UI.initSetting('true_color', true);
+    UI.initSetting('cursor', false);
+    UI.initSetting('shared', true);
+    UI.initSetting('connectTimeout', 2);
+    UI.initSetting('path', '');
+
+    UI.rfb = RFB({'target': $D('noVNC_canvas'),
+                  'onUpdateState': UI.updateState,
+                  'onClipboard': UI.clipReceive});
+    UI.updateVisualState();
+
+    // Unfocus clipboard when over the VNC area
+    //$D('VNC_screen').onmousemove = function () {
+    //         var keyboard = UI.rfb.get_keyboard();
+    //        if ((! keyboard) || (! keyboard.get_focused())) {
+    //            $D('VNC_clipboard_text').blur();
+    //         }
+    //    };
+
+    // Show mouse selector buttons on touch screen devices
+    if ('ontouchstart' in document.documentElement) {
+        // Show mobile buttons
+        $D('noVNC_mobile_buttons').style.display = "inline";
+        UI.setMouseButton();
+        // Remove the address bar
+        setTimeout(function() { window.scrollTo(0, 1); }, 100);
+        UI.forceSetting('clip', true);
+        $D('noVNC_clip').disabled = true;
+    } else {
+        UI.initSetting('clip', false);
+    }
+
+    //iOS Safari does not support CSS position:fixed.
+    //This detects iOS devices and enables javascript workaround.
+    if ((navigator.userAgent.match(/iPhone/i)) ||
+        (navigator.userAgent.match(/iPod/i)) ||
+        (navigator.userAgent.match(/iPad/i))) {
+        //UI.setOnscroll();
+        //UI.setResize();
+    }
+
+    $D('noVNC_host').focus();
+
+    UI.setViewClip();
+    Util.addEvent(window, 'resize', UI.setViewClip);
+
+    Util.addEvent(window, 'beforeunload', function () {
+        if (UI.rfb_state === 'normal') {
+            return "You are currently connected.";
+        }
+    } );
+
+},
+
+// Read form control compatible setting from cookie
+getSetting: function(name) {
+    var val, ctrl = $D('noVNC_' + name);
+    val = WebUtil.readCookie(name);
+    if (ctrl.type === 'checkbox') {
+        if (val.toLowerCase() in {'0':1, 'no':1, 'false':1}) {
+            val = false;
+        } else {
+            val = true;
+        }
+    }
+    return val;
+},
+
+// Update cookie and form control setting. If value is not set, then
+// updates from control to current cookie setting.
+updateSetting: function(name, value) {
+
+    var i, ctrl = $D('noVNC_' + name);
+    // Save the cookie for this session
+    if (typeof value !== 'undefined') {
+        WebUtil.createCookie(name, value);
+    }
+
+    // Update the settings control
+    value = UI.getSetting(name);
+
+    if (ctrl.type === 'checkbox') {
+        ctrl.checked = value;
+
+    } else if (typeof ctrl.options !== 'undefined') {
+        for (i = 0; i < ctrl.options.length; i += 1) {
+            if (ctrl.options[i].value === value) {
+                ctrl.selectedIndex = i;
+                break;
+            }
+        }
+    } else {
+        /*Weird IE9 error leads to 'null' appearring
+        in textboxes instead of ''.*/
+        if (value === null) {
+            value = "";
+        }
+        ctrl.value = value;
+    }
+},
+
+// Save control setting to cookie
+saveSetting: function(name) {
+    var val, ctrl = $D('noVNC_' + name);
+    if (ctrl.type === 'checkbox') {
+        val = ctrl.checked;
+    } else if (typeof ctrl.options !== 'undefined') {
+        val = ctrl.options[ctrl.selectedIndex].value;
+    } else {
+        val = ctrl.value;
+    }
+    WebUtil.createCookie(name, val);
+    //Util.Debug("Setting saved '" + name + "=" + val + "'");
+    return val;
+},
+
+// Initial page load read/initialization of settings
+initSetting: function(name, defVal) {
+    var val;
+
+    // Check Query string followed by cookie
+    val = WebUtil.getQueryVar(name);
+    if (val === null) {
+        val = WebUtil.readCookie(name, defVal);
+    }
+    UI.updateSetting(name, val);
+ //Util.Debug("Setting '" + name + "' initialized to '" + val + "'");
+    return val;
+},
+
+// Force a setting to be a certain value
+forceSetting: function(name, val) {
+    UI.updateSetting(name, val);
+    return val;
+},
+
+
+// Show the clipboard panel
+toggleClipboardPanel: function() {
+    //Close settings if open
+    if (UI.settingsOpen == true) {
+        UI.settingsApply();
+        UI.closeSettingsMenu();
+    }
+    //Close connection settings if open
+    if (UI.connSettingsOpen == true) {
+        UI.toggleConnectPanel();
+    }
+    //Toggle Clipboard Panel
+    if (UI.clipboardOpen == true) {
+        $D('noVNC_clipboard').style.display = "none";
+        $D('clipboardButton').className = "noVNC_status_button";
+        UI.clipboardOpen = false;
+    } else {
+        $D('noVNC_clipboard').style.display = "block";
+        $D('clipboardButton').className = "noVNC_status_button_selected";
+        UI.clipboardOpen = true;
+    }
+},
+
+// Show the connection settings panel/menu
+toggleConnectPanel: function() {
+    //Close connection settings if open
+    if (UI.settingsOpen == true) {
+        UI.settingsApply();
+        UI.closeSettingsMenu();
+        $D('connectButton').className = "noVNC_status_button";
+    }
+    if (UI.clipboardOpen == true) {
+        UI.toggleClipboardPanel();
+    }
+
+    //Toggle Connection Panel
+    if (UI.connSettingsOpen == true) {
+        $D('noVNC_controls').style.display = "none";
+        $D('connectButton').className = "noVNC_status_button";
+        UI.connSettingsOpen = false;
+    } else {
+        $D('noVNC_controls').style.display = "block";
+        $D('connectButton').className = "noVNC_status_button_selected";
+        UI.connSettingsOpen = true;
+        $D('noVNC_host').focus();
+    }
+},
+
+// Toggle the settings menu:
+//   On open, settings are refreshed from saved cookies.
+//   On close, settings are applied
+toggleSettingsPanel: function() {
+    if (UI.settingsOpen) {
+        UI.settingsApply();
+        UI.closeSettingsMenu();
+    } else {
+        UI.updateSetting('encrypt');
+        UI.updateSetting('true_color');
+        if (UI.rfb.get_display().get_cursor_uri()) {
+            UI.updateSetting('cursor');
+        } else {
+            UI.updateSetting('cursor', false);
+            $D('noVNC_cursor').disabled = true;
+        }
+        UI.updateSetting('clip');
+        UI.updateSetting('shared');
+        UI.updateSetting('connectTimeout');
+        UI.updateSetting('path');
+        UI.updateSetting('stylesheet');
+        UI.updateSetting('logging');
+
+        UI.openSettingsMenu();
+    }
+},
+
+// Open menu
+openSettingsMenu: function() {
+    if (UI.clipboardOpen == true) {
+        UI.toggleClipboardPanel();
+    }
+    //Close connection settings if open
+    if (UI.connSettingsOpen == true) {
+        UI.toggleConnectPanel();
+    }
+    $D('noVNC_settings').style.display = "block";
+    $D('settingsButton').className = "noVNC_status_button_selected";
+    UI.settingsOpen = true;
+},
+
+// Close menu (without applying settings)
+closeSettingsMenu: function() {
+    $D('noVNC_settings').style.display = "none";
+    $D('settingsButton').className = "noVNC_status_button";
+    UI.settingsOpen = false;
+},
+
+// Save/apply settings when 'Apply' button is pressed
+settingsApply: function() {
+    //Util.Debug(">> settingsApply");
+    UI.saveSetting('encrypt');
+    UI.saveSetting('true_color');
+    if (UI.rfb.get_display().get_cursor_uri()) {
+        UI.saveSetting('cursor');
+    }
+    UI.saveSetting('clip');
+    UI.saveSetting('shared');
+    UI.saveSetting('connectTimeout');
+    UI.saveSetting('path');
+    UI.saveSetting('stylesheet');
+    UI.saveSetting('logging');
+
+    // Settings with immediate (non-connected related) effect
+    WebUtil.selectStylesheet(UI.getSetting('stylesheet'));
+    WebUtil.init_logging(UI.getSetting('logging'));
+    UI.setViewClip();
+    UI.setViewDrag(UI.rfb.get_viewportDrag());
+    //Util.Debug("<< settingsApply");
+},
+
+
+
+setPassword: function() {
+    UI.rfb.sendPassword($D('noVNC_password').value);
+    //Reset connect button.
+    $D('noVNC_connect_button').value = "Connect";
+    $D('noVNC_connect_button').onclick = UI.Connect;
+    //Hide connection panel.
+    UI.toggleConnectPanel();
+    return false;
+},
+
+sendCtrlAltDel: function() {
+    UI.rfb.sendCtrlAltDel();
+},
+
+setMouseButton: function(num) {
+    var b, blist = [0, 1,2,4], button;
+
+    if (typeof num === 'undefined') {
+        // Disable mouse buttons
+        num = -1;
+    }
+    if (UI.rfb) {
+        UI.rfb.get_mouse().set_touchButton(num);
+    }
+
+    for (b = 0; b < blist.length; b++) {
+        button = $D('noVNC_mouse_button' + blist[b]);
+        if (blist[b] === num) {
+            button.style.display = "";
+        } else {
+            button.style.display = "none";
+            /*
+            button.style.backgroundColor = "black";
+            button.style.color = "lightgray";
+            button.style.backgroundColor = "";
+            button.style.color = "";
+            */
+        }
+    }
+},
+
+updateState: function(rfb, state, oldstate, msg) {
+    var s, sb, c, d, cad, vd, klass;
+    UI.rfb_state = state;
+    s = $D('noVNC_status');
+    sb = $D('noVNC_status_bar');
+    switch (state) {
+        case 'failed':
+        case 'fatal':
+            klass = "noVNC_status_error";
+            break;
+        case 'normal':
+            klass = "noVNC_status_normal";
+            break;
+        case 'disconnected':
+            $D('noVNC_logo').style.display = "block";
+        case 'loaded':
+            klass = "noVNC_status_normal";
+            break;
+        case 'password':
+            UI.toggleConnectPanel();
+
+            $D('noVNC_connect_button').value = "Send Password";
+            $D('noVNC_connect_button').onclick = UI.setPassword;
+            $D('noVNC_password').focus();
+
+            klass = "noVNC_status_warn";
+            break;
+        default:
+            klass = "noVNC_status_warn";
+            break;
+    }
+
+    if (typeof(msg) !== 'undefined') {
+        s.setAttribute("class", klass);
+        sb.setAttribute("class", klass);
+        s.innerHTML = msg;
+    }
+
+    UI.updateVisualState();
+},
+
+// Disable/enable controls depending on connection state
+updateVisualState: function() {
+    var connected = UI.rfb_state === 'normal' ? true : false;
+
+    //Util.Debug(">> updateVisualState");
+    $D('noVNC_encrypt').disabled = connected;
+    $D('noVNC_true_color').disabled = connected;
+    if (UI.rfb && UI.rfb.get_display() &&
+        UI.rfb.get_display().get_cursor_uri()) {
+        $D('noVNC_cursor').disabled = connected;
+    } else {
+        UI.updateSetting('cursor', false);
+        $D('noVNC_cursor').disabled = true;
+    }
+    $D('noVNC_shared').disabled = connected;
+    $D('noVNC_connectTimeout').disabled = connected;
+    $D('noVNC_path').disabled = connected;
+
+    if (connected) {
+        UI.setViewClip();
+        UI.setMouseButton(1);
+        $D('showKeyboard').style.display = "inline";
+        $D('sendCtrlAltDelButton').style.display = "inline";
+    } else {
+        UI.setMouseButton();
+        $D('showKeyboard').style.display = "none";
+        $D('sendCtrlAltDelButton').style.display = "none";
+    }
+    // State change disables viewport dragging.
+    // It is enabled (toggled) by direct click on the button
+    UI.setViewDrag(false);
+
+    switch (UI.rfb_state) {
+        case 'fatal':
+        case 'failed':
+        case 'loaded':
+        case 'disconnected':
+            $D('connectButton').style.display = "";
+            $D('disconnectButton').style.display = "none";
+            break;
+        default:
+            $D('connectButton').style.display = "none";
+            $D('disconnectButton').style.display = "";
+            break;
+    }
+
+    //Util.Debug("<< updateVisualState");
+},
+
+
+clipReceive: function(rfb, text) {
+    Util.Debug(">> UI.clipReceive: " + text.substr(0,40) + "...");
+    $D('noVNC_clipboard_text').value = text;
+    Util.Debug("<< UI.clipReceive");
+},
+
+
+connect: function() {
+    var host, port, password, path;
+
+    UI.closeSettingsMenu();
+    UI.toggleConnectPanel();
+
+    host = $D('noVNC_host').value;
+    port = $D('noVNC_port').value;
+    password = $D('noVNC_password').value;
+    path = $D('noVNC_path').value;
+    if ((!host) || (!port)) {
+        throw("Must set host and port");
+    }
+
+    UI.rfb.set_encrypt(UI.getSetting('encrypt'));
+    UI.rfb.set_true_color(UI.getSetting('true_color'));
+    UI.rfb.set_local_cursor(UI.getSetting('cursor'));
+    UI.rfb.set_shared(UI.getSetting('shared'));
+    UI.rfb.set_connectTimeout(UI.getSetting('connectTimeout'));
+
+    UI.rfb.connect(host, port, password, path);
+    //Close dialog.
+    setTimeout(UI.setBarPosition, 100);
+    $D('noVNC_logo').style.display = "none";
+},
+
+disconnect: function() {
+    UI.closeSettingsMenu();
+    UI.rfb.disconnect();
+
+    $D('noVNC_logo').style.display = "block";
+    UI.connSettingsOpen = false;
+    UI.toggleConnectPanel();
+},
+
+displayBlur: function() {
+    UI.rfb.get_keyboard().set_focused(false);
+    UI.rfb.get_mouse().set_focused(false);
+},
+
+displayFocus: function() {
+    UI.rfb.get_keyboard().set_focused(true);
+    UI.rfb.get_mouse().set_focused(true);
+},
+
+clipClear: function() {
+    $D('noVNC_clipboard_text').value = "";
+    UI.rfb.clipboardPasteFrom("");
+},
+
+clipSend: function() {
+    var text = $D('noVNC_clipboard_text').value;
+    Util.Debug(">> UI.clipSend: " + text.substr(0,40) + "...");
+    UI.rfb.clipboardPasteFrom(text);
+    Util.Debug("<< UI.clipSend");
+},
+
+
+// Enable/disable and configure viewport clipping
+setViewClip: function(clip) {
+    var display, cur_clip, pos, new_w, new_h;
+
+    if (UI.rfb) {
+        display = UI.rfb.get_display();
+    } else {
+        return;
+    }
+
+    cur_clip = display.get_viewport();
+
+    if (typeof(clip) !== 'boolean') {
+        // Use current setting
+        clip = UI.getSetting('clip');
+    }
+
+    if (clip && !cur_clip) {
+        // Turn clipping on
+        UI.updateSetting('clip', true);
+    } else if (!clip && cur_clip) {
+        // Turn clipping off
+        UI.updateSetting('clip', false);
+        display.set_viewport(false);
+        $D('noVNC_canvas').style.position = 'static';
+        display.viewportChange();
+    }
+    if (UI.getSetting('clip')) {
+        // If clipping, update clipping settings
+        $D('noVNC_canvas').style.position = 'absolute';
+        pos = Util.getPosition($D('noVNC_canvas'));
+        new_w = window.innerWidth - pos.x;
+        new_h = window.innerHeight - pos.y;
+        display.set_viewport(true);
+        display.viewportChange(0, 0, new_w, new_h);
+    }
+},
+
+// Toggle/set/unset the viewport drag/move button
+setViewDrag: function(drag) {
+    var vmb = $D('noVNC_view_drag_button');
+    if (!UI.rfb) { return; }
+
+    if (UI.rfb_state === 'normal' &&
+        UI.rfb.get_display().get_viewport()) {
+        vmb.style.display = "inline";
+    } else {
+        vmb.style.display = "none";
+    }
+
+    if (typeof(drag) === "undefined") {
+        // If not specified, then toggle
+        drag = !UI.rfb.get_viewportDrag();
+    }
+    if (drag) {
+        vmb.className = "noVNC_status_button_selected";
+        UI.rfb.set_viewportDrag(true);
+    } else {
+        vmb.className = "noVNC_status_button";
+        UI.rfb.set_viewportDrag(false);
+    }
+},
+
+// On touch devices, show the OS keyboard
+showKeyboard: function() {
+    if(UI.keyboardVisible == false) {
+        $D('keyboardinput').focus();
+        UI.keyboardVisible = true;
+        $D('showKeyboard').className = "noVNC_status_button_selected";
+    } else if(UI.keyboardVisible == true) {
+        $D('keyboardinput').blur();
+        $D('showKeyboard').className = "noVNC_status_button";
+        UI.keyboardVisible = false;
+    }
+},
+
+keyInputBlur: function() {
+    $D('showKeyboard').className = "noVNC_status_button";
+    //Weird bug in iOS if you change keyboardVisible
+    //here it does not actually occur so next time
+    //you click keyboard icon it doesnt work.
+    setTimeout("UI.setKeyboard()",100)
+},
+
+setKeyboard: function() {
+    UI.keyboardVisible = false;
+},
+
+// iOS < Version 5 does not support position fixed. Javascript workaround:
+setOnscroll: function() {
+    window.onscroll = function() {
+        UI.setBarPosition();
+    };
+},
+
+setResize: function () {
+    window.onResize = function() {
+        UI.setBarPosition();
+    };
+},
+
+//Helper to add options to dropdown.
+addOption: function(selectbox,text,value )
+{
+    var optn = document.createElement("OPTION");
+    optn.text = text;
+    optn.value = value;
+    selectbox.options.add(optn);
+},
+
+setBarPosition: function() {
+    $D('noVNC-control-bar').style.top = (window.pageYOffset) + 'px';
+    $D('noVNC_mobile_buttons').style.left = (window.pageXOffset) + 'px';
+
+    var vncwidth = $D('noVNC_screen').style.offsetWidth;
+    $D('noVNC-control-bar').style.width = vncwidth + 'px';
+}
+
+};
+
+
+
+

classes/novnc/include/util.js

@@ -0,0 +1,276 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+"use strict";
+/*jslint bitwise: false, white: false */
+/*global window, console, document, navigator, ActiveXObject */
+
+// Globals defined here
+var Util = {};
+
+
+/*
+ * Make arrays quack
+ */
+
+Array.prototype.push8 = function (num) {
+    this.push(num & 0xFF);
+};
+
+Array.prototype.push16 = function (num) {
+    this.push((num >> 8) & 0xFF,
+              (num     ) & 0xFF  );
+};
+Array.prototype.push32 = function (num) {
+    this.push((num >> 24) & 0xFF,
+              (num >> 16) & 0xFF,
+              (num >>  8) & 0xFF,
+              (num      ) & 0xFF  );
+};
+
+/* 
+ * ------------------------------------------------------
+ * Namespaced in Util
+ * ------------------------------------------------------
+ */
+
+/*
+ * Logging/debug routines
+ */
+
+Util._log_level = 'warn';
+Util.init_logging = function (level) {
+    if (typeof level === 'undefined') {
+        level = Util._log_level;
+    } else {
+        Util._log_level = level;
+    }
+    if (typeof window.console === "undefined") {
+        if (typeof window.opera !== "undefined") {
+            window.console = {
+                'log'  : window.opera.postError,
+                'warn' : window.opera.postError,
+                'error': window.opera.postError };
+        } else {
+            window.console = {
+                'log'  : function(m) {},
+                'warn' : function(m) {},
+                'error': function(m) {}};
+        }
+    }
+
+    Util.Debug = Util.Info = Util.Warn = Util.Error = function (msg) {};
+    switch (level) {
+        case 'debug': Util.Debug = function (msg) { console.log(msg); };
+        case 'info':  Util.Info  = function (msg) { console.log(msg); };
+        case 'warn':  Util.Warn  = function (msg) { console.warn(msg); };
+        case 'error': Util.Error = function (msg) { console.error(msg); };
+        case 'none':
+            break;
+        default:
+            throw("invalid logging type '" + level + "'");
+    }
+};
+Util.get_logging = function () {
+    return Util._log_level;
+};
+// Initialize logging level
+Util.init_logging();
+
+
+// Set configuration default for Crockford style function namespaces
+Util.conf_default = function(cfg, api, defaults, v, mode, type, defval, desc) {
+    var getter, setter;
+
+    // Default getter function
+    getter = function (idx) {
+        if ((type in {'arr':1, 'array':1}) &&
+            (typeof idx !== 'undefined')) {
+            return cfg[v][idx];
+        } else {
+            return cfg[v];
+        }
+    };
+
+    // Default setter function
+    setter = function (val, idx) {
+        if (type in {'boolean':1, 'bool':1}) {
+            if ((!val) || (val in {'0':1, 'no':1, 'false':1})) {
+                val = false;
+            } else {
+                val = true;
+            }
+        } else if (type in {'integer':1, 'int':1}) {
+            val = parseInt(val, 10);
+        } else if (type === 'func') {
+            if (!val) {
+                val = function () {};
+            }
+        }
+        if (typeof idx !== 'undefined') {
+            cfg[v][idx] = val;
+        } else {
+            cfg[v] = val;
+        }
+    };
+
+    // Set the description
+    api[v + '_description'] = desc;
+
+    // Set the getter function
+    if (typeof api['get_' + v] === 'undefined') {
+        api['get_' + v] = getter;
+    }
+
+    // Set the setter function with extra sanity checks
+    if (typeof api['set_' + v] === 'undefined') {
+        api['set_' + v] = function (val, idx) {
+            if (mode in {'RO':1, 'ro':1}) {
+                throw(v + " is read-only");
+            } else if ((mode in {'WO':1, 'wo':1}) &&
+                       (typeof cfg[v] !== 'undefined')) {
+                throw(v + " can only be set once");
+            }
+            setter(val, idx);
+        };
+    }
+
+    // Set the default value
+    if (typeof defaults[v] !== 'undefined') {
+        defval = defaults[v];
+    } else if ((type in {'arr':1, 'array':1}) &&
+            (! (defval instanceof Array))) {
+        defval = [];
+    }
+    // Coerce existing setting to the right type
+    //Util.Debug("v: " + v + ", defval: " + defval + ", defaults[v]: " + defaults[v]);
+    setter(defval);
+};
+
+// Set group of configuration defaults
+Util.conf_defaults = function(cfg, api, defaults, arr) {
+    var i;
+    for (i = 0; i < arr.length; i++) {
+        Util.conf_default(cfg, api, defaults, arr[i][0], arr[i][1],
+                arr[i][2], arr[i][3], arr[i][4]);
+    }
+}
+
+
+/*
+ * Cross-browser routines
+ */
+
+// Get DOM element position on page
+Util.getPosition = function (obj) {
+    var x = 0, y = 0;
+    if (obj.offsetParent) {
+        do {
+            x += obj.offsetLeft;
+            y += obj.offsetTop;
+            obj = obj.offsetParent;
+        } while (obj);
+    }
+    return {'x': x, 'y': y};
+};
+
+// Get mouse event position in DOM element
+Util.getEventPosition = function (e, obj, scale) {
+    var evt, docX, docY, pos;
+    //if (!e) evt = window.event;
+    evt = (e ? e : window.event);
+    evt = (evt.changedTouches ? evt.changedTouches[0] : evt.touches ? evt.touches[0] : evt);
+    if (evt.pageX || evt.pageY) {
+        docX = evt.pageX;
+        docY = evt.pageY;
+    } else if (evt.clientX || evt.clientY) {
+        docX = evt.clientX + document.body.scrollLeft +
+            document.documentElement.scrollLeft;
+        docY = evt.clientY + document.body.scrollTop +
+            document.documentElement.scrollTop;
+    }
+    pos = Util.getPosition(obj);
+    if (typeof scale === "undefined") {
+        scale = 1;
+    }
+    return {'x': (docX - pos.x) / scale, 'y': (docY - pos.y) / scale};
+};
+
+
+// Event registration. Based on: http://www.scottandrew.com/weblog/articles/cbs-events
+Util.addEvent = function (obj, evType, fn){
+    if (obj.attachEvent){
+        var r = obj.attachEvent("on"+evType, fn);
+        return r;
+    } else if (obj.addEventListener){
+        obj.addEventListener(evType, fn, false); 
+        return true;
+    } else {
+        throw("Handler could not be attached");
+    }
+};
+
+Util.removeEvent = function(obj, evType, fn){
+    if (obj.detachEvent){
+        var r = obj.detachEvent("on"+evType, fn);
+        return r;
+    } else if (obj.removeEventListener){
+        obj.removeEventListener(evType, fn, false);
+        return true;
+    } else {
+        throw("Handler could not be removed");
+    }
+};
+
+Util.stopEvent = function(e) {
+    if (e.stopPropagation) { e.stopPropagation(); }
+    else                   { e.cancelBubble = true; }
+
+    if (e.preventDefault)  { e.preventDefault(); }
+    else                   { e.returnValue = false; }
+};
+
+
+// Set browser engine versions. Based on mootools.
+Util.Features = {xpath: !!(document.evaluate), air: !!(window.runtime), query: !!(document.querySelector)};
+
+Util.Engine = {
+    'presto': (function() {
+            return (!window.opera) ? false : ((arguments.callee.caller) ? 960 : ((document.getElementsByClassName) ? 950 : 925)); }()),
+    'trident': (function() {
+            return (!window.ActiveXObject) ? false : ((window.XMLHttpRequest) ? ((document.querySelectorAll) ? 6 : 5) : 4); }()),
+    'webkit': (function() {
+            try { return (navigator.taintEnabled) ? false : ((Util.Features.xpath) ? ((Util.Features.query) ? 525 : 420) : 419); } catch (e) { return false; } }()),
+    //'webkit': (function() {
+    //        return ((typeof navigator.taintEnabled !== "unknown") && navigator.taintEnabled) ? false : ((Util.Features.xpath) ? ((Util.Features.query) ? 525 : 420) : 419); }()),
+    'gecko': (function() {
+            return (!document.getBoxObjectFor && window.mozInnerScreenX == null) ? false : ((document.getElementsByClassName) ? 19 : 18); }())
+};
+if (Util.Engine.webkit) {
+    // Extract actual webkit version if available
+    Util.Engine.webkit = (function(v) {
+            var re = new RegExp('WebKit/([0-9\.]*) ');
+            v = (navigator.userAgent.match(re) || ['', v])[1];
+            return parseFloat(v, 10);
+        })(Util.Engine.webkit);
+}
+
+Util.Flash = (function(){
+    var v, version;
+    try {
+        v = navigator.plugins['Shockwave Flash'].description;
+    } catch(err1) {
+        try {
+            v = new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
+        } catch(err2) {
+            v = '0 r0';
+        }
+    }
+    version = v.match(/\d+/g);
+    return {version: parseInt(version[0] || 0 + '.' + version[1], 10) || 0, build: parseInt(version[2], 10) || 0};
+}()); 

classes/novnc/include/vnc.js

@@ -0,0 +1,42 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+/*jslint evil: true */
+/*global window, document, INCLUDE_URI */
+
+/*
+ * Load supporting scripts
+ */
+function get_INCLUDE_URI() {
+    return (typeof INCLUDE_URI !== "undefined") ? INCLUDE_URI : "include/";
+}
+
+(function () {
+    "use strict";
+
+    var extra = "", start, end;
+
+    start = "<script src='" + get_INCLUDE_URI();
+    end = "'><\/script>";
+
+    // Uncomment to activate firebug lite
+    //extra += "<script src='http://getfirebug.com/releases/lite/1.2/" + 
+    //         "firebug-lite-compressed.js'><\/script>";
+
+    extra += start + "util.js" + end;
+    extra += start + "webutil.js" + end;
+    extra += start + "base64.js" + end;
+    extra += start + "websock.js" + end;
+    extra += start + "des.js" + end;
+    extra += start + "input.js" + end;
+    extra += start + "display.js" + end;
+    extra += start + "rfb.js" + end;
+
+    document.write(extra);
+}());
+

classes/novnc/include/web-socket-js/README.txt

@@ -0,0 +1,109 @@
+* How to try
+
+Assuming you have Web server (e.g. Apache) running at http://example.com/ .
+
+- Download web_socket.rb from:
+  http://github.com/gimite/web-socket-ruby/tree/master
+- Run sample Web Socket server (echo server) in example.com with: (#1)
+  $ ruby web-socket-ruby/samples/echo_server.rb example.com 10081
+- If your server already provides socket policy file at port 843, modify the file to allow access to port 10081. Otherwise you can skip this step. See below for details.
+- Publish the web-socket-js directory with your Web server (e.g. put it in ~/public_html).
+- Change ws://localhost:10081 to ws://example.com:10081 in sample.html.
+- Open sample.html in your browser.
+- After "onopen" is shown, input something, click [Send] and confirm echo back.
+
+#1: First argument of echo_server.rb means that it accepts Web Socket connection from HTML pages in example.com.
+
+
+* Troubleshooting
+
+If it doesn't work, try these:
+
+1. Try Chrome and Firefox 3.x.
+- It doesn't work on Chrome:
+-- It's likely an issue of your code or the server. Debug your code as usual e.g. using console.log.
+- It works on Chrome but it doesn't work on Firefox:
+-- It's likely an issue of web-socket-js specific configuration (e.g. 3 and 4 below).
+- It works on both Chrome and Firefox, but it doesn't work on your browser:
+-- Check "Supported environment" section below. Your browser may not be supported by web-socket-js.
+
+2. Add this line before your code:
+  WEB_SOCKET_DEBUG = true;
+and use Developer Tools (Chrome/Safari) or Firebug (Firefox) to see if console.log outputs any errors.
+
+3. Make sure you do NOT open your HTML page as local file e.g. file:///.../sample.html. web-socket-js doesn't work on local file. Open it via Web server e.g. http:///.../sample.html.
+
+4. If you are NOT using web-socket-ruby as your WebSocket server, you need to place Flash socket policy file on your server. See "Flash socket policy file" section below for details.
+
+5. Check if sample.html bundled with web-socket-js works.
+
+6. Make sure the port used for WebSocket (10081 in example above) is not blocked by your server/client's firewall.
+
+7. Install debugger version of Flash Player available here to see Flash errors:
+http://www.adobe.com/support/flashplayer/downloads.html
+
+
+* Supported environments
+
+It should work on:
+- Google Chrome 4 or later (just uses native implementation)
+- Firefox 3.x, Internet Explorer 8 + Flash Player 9 or later
+
+It may or may not work on other browsers such as Safari, Opera or IE 6. Patch for these browsers are appreciated, but I will not work on fixing issues specific to these browsers by myself.
+
+
+* Flash socket policy file
+
+This implementation uses Flash's socket, which means that your server must provide Flash socket policy file to declare the server accepts connections from Flash.
+
+If you use web-socket-ruby available at
+http://github.com/gimite/web-socket-ruby/tree/master
+, you don't need anything special, because web-socket-ruby handles Flash socket policy file request. But if you already provide socket policy file at port 843, you need to modify the file to allow access to Web Socket port, because it precedes what web-socket-ruby provides.
+
+If you use other Web Socket server implementation, you need to provide socket policy file yourself. See
+http://www.lightsphere.com/dev/articles/flash_socket_policy.html
+for details and sample script to run socket policy file server. node.js implementation is available here:
+http://github.com/LearnBoost/Socket.IO-node/blob/master/lib/socket.io/transports/flashsocket.js
+
+Actually, it's still better to provide socket policy file at port 843 even if you use web-socket-ruby. Flash always try to connect to port 843 first, so providing the file at port 843 makes startup faster.
+
+
+* Cookie considerations
+
+Cookie is sent if Web Socket host is the same as the origin of JavaScript. Otherwise it is not sent, because I don't know way to send right Cookie (which is Cookie of the host of Web Socket, I heard).
+
+Note that it's technically possible that client sends arbitrary string as Cookie and any other headers (by modifying this library for example) once you place Flash socket policy file in your server. So don't trust Cookie and other headers if you allow connection from untrusted origin.
+
+
+* Proxy considerations
+
+The WebSocket spec (http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol) specifies instructions for User Agents to support proxied connections by implementing the HTTP CONNECT method.
+
+The AS3 Socket class doesn't implement this mechanism, which renders it useless for the scenarios where the user trying to open a socket is behind a proxy. 
+
+The class RFC2817Socket (by Christian Cantrell) effectively lets us implement this, as long as the proxy settings are known and provided by the interface that instantiates the WebSocket. As such, if you want to support proxied conncetions, you'll have to supply this information to the WebSocket constructor when Flash is being used. One way to go about it would be to ask the user for proxy settings information if the initial connection fails.
+
+
+* How to host HTML file and SWF file in different domains
+
+By default, HTML file and SWF file must be in the same domain. You can follow steps below to allow hosting them in different domain.
+
+WARNING: If you use the method below, HTML files in ANY domains can send arbitrary TCP data to your WebSocket server, regardless of configuration in Flash socket policy file. Arbitrary TCP data means that they can even fake request headers including Origin and Cookie.
+
+- Unzip WebSocketMainInsecure.zip to extract WebSocketMainInsecure.swf.
+- Put WebSocketMainInsecure.swf on your server, instead of WebSocketMain.swf.
+- In JavaScript, set WEB_SOCKET_SWF_LOCATION to URL of your WebSocketMainInsecure.swf.
+
+
+* How to build WebSocketMain.swf
+
+Install Flex 4 SDK:
+http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4
+
+$ cd flash-src
+$ ./build.sh
+
+
+* License
+
+New BSD License.

classes/novnc/include/web-socket-js/web_socket.js

@@ -0,0 +1,341 @@
+// Copyright: Hiroshi Ichikawa <http://gimite.net/en/>
+// License: New BSD License
+// Reference: http://dev.w3.org/html5/websockets/
+// Reference: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol
+
+(function() {
+  
+  if (window.WebSocket) return;
+
+  var console = window.console;
+  if (!console || !console.log || !console.error) {
+    console = {log: function(){ }, error: function(){ }};
+  }
+  
+  if (!swfobject.hasFlashPlayerVersion("10.0.0")) {
+    console.error("Flash Player >= 10.0.0 is required.");
+    return;
+  }
+  if (location.protocol == "file:") {
+    console.error(
+      "WARNING: web-socket-js doesn't work in file:///... URL " +
+      "unless you set Flash Security Settings properly. " +
+      "Open the page via Web server i.e. http://...");
+  }
+
+  /**
+   * This class represents a faux web socket.
+   * @param {string} url
+   * @param {string} protocol
+   * @param {string} proxyHost
+   * @param {int} proxyPort
+   * @param {string} headers
+   */
+  WebSocket = function(url, protocol, proxyHost, proxyPort, headers) {
+    var self = this;
+    self.__id = WebSocket.__nextId++;
+    WebSocket.__instances[self.__id] = self;
+    self.readyState = WebSocket.CONNECTING;
+    self.bufferedAmount = 0;
+    self.__events = {};
+    // Uses setTimeout() to make sure __createFlash() runs after the caller sets ws.onopen etc.
+    // Otherwise, when onopen fires immediately, onopen is called before it is set.
+    setTimeout(function() {
+      WebSocket.__addTask(function() {
+        WebSocket.__flash.create(
+            self.__id, url, protocol, proxyHost || null, proxyPort || 0, headers || null);
+      });
+    }, 0);
+  };
+
+  /**
+   * Send data to the web socket.
+   * @param {string} data  The data to send to the socket.
+   * @return {boolean}  True for success, false for failure.
+   */
+  WebSocket.prototype.send = function(data) {
+    if (this.readyState == WebSocket.CONNECTING) {
+      throw "INVALID_STATE_ERR: Web Socket connection has not been established";
+    }
+    // We use encodeURIComponent() here, because FABridge doesn't work if
+    // the argument includes some characters. We don't use escape() here
+    // because of this:
+    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Functions#escape_and_unescape_Functions
+    // But it looks decodeURIComponent(encodeURIComponent(s)) doesn't
+    // preserve all Unicode characters either e.g. "\uffff" in Firefox.
+    // Note by wtritch: Hopefully this will not be necessary using ExternalInterface.  Will require
+    // additional testing.
+    var result = WebSocket.__flash.send(this.__id, encodeURIComponent(data));
+    if (result < 0) { // success
+      return true;
+    } else {
+      this.bufferedAmount += result;
+      return false;
+    }
+  };
+
+  /**
+   * Close this web socket gracefully.
+   */
+  WebSocket.prototype.close = function() {
+    if (this.readyState == WebSocket.CLOSED || this.readyState == WebSocket.CLOSING) {
+      return;
+    }
+    this.readyState = WebSocket.CLOSING;
+    WebSocket.__flash.close(this.__id);
+  };
+
+  /**
+   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
+   *
+   * @param {string} type
+   * @param {function} listener
+   * @param {boolean} useCapture
+   * @return void
+   */
+  WebSocket.prototype.addEventListener = function(type, listener, useCapture) {
+    if (!(type in this.__events)) {
+      this.__events[type] = [];
+    }
+    this.__events[type].push(listener);
+  };
+
+  /**
+   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
+   *
+   * @param {string} type
+   * @param {function} listener
+   * @param {boolean} useCapture
+   * @return void
+   */
+  WebSocket.prototype.removeEventListener = function(type, listener, useCapture) {
+    if (!(type in this.__events)) return;
+    var events = this.__events[type];
+    for (var i = events.length - 1; i >= 0; --i) {
+      if (events[i] === listener) {
+        events.splice(i, 1);
+        break;
+      }
+    }
+  };
+
+  /**
+   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
+   *
+   * @param {Event} event
+   * @return void
+   */
+  WebSocket.prototype.dispatchEvent = function(event) {
+    var events = this.__events[event.type] || [];
+    for (var i = 0; i < events.length; ++i) {
+      events[i](event);
+    }
+    var handler = this["on" + event.type];
+    if (handler) handler(event);
+  };
+
+  /**
+   * Handles an event from Flash.
+   * @param {Object} flashEvent
+   */
+  WebSocket.prototype.__handleEvent = function(flashEvent) {
+    if ("readyState" in flashEvent) {
+      this.readyState = flashEvent.readyState;
+    }
+    
+    var jsEvent;
+    if (flashEvent.type == "open" || flashEvent.type == "error") {
+      jsEvent = this.__createSimpleEvent(flashEvent.type);
+    } else if (flashEvent.type == "close") {
+      // TODO implement jsEvent.wasClean
+      jsEvent = this.__createSimpleEvent("close");
+    } else if (flashEvent.type == "message") {
+      var data = decodeURIComponent(flashEvent.message);
+      jsEvent = this.__createMessageEvent("message", data);
+    } else {
+      throw "unknown event type: " + flashEvent.type;
+    }
+    
+    this.dispatchEvent(jsEvent);
+  };
+  
+  WebSocket.prototype.__createSimpleEvent = function(type) {
+    if (document.createEvent && window.Event) {
+      var event = document.createEvent("Event");
+      event.initEvent(type, false, false);
+      return event;
+    } else {
+      return {type: type, bubbles: false, cancelable: false};
+    }
+  };
+  
+  WebSocket.prototype.__createMessageEvent = function(type, data) {
+    if (document.createEvent && window.MessageEvent && !window.opera) {
+      var event = document.createEvent("MessageEvent");
+      event.initMessageEvent("message", false, false, data, null, null, window, null);
+      return event;
+    } else {
+      // IE and Opera, the latter one truncates the data parameter after any 0x00 bytes.
+      return {type: type, data: data, bubbles: false, cancelable: false};
+    }
+  };
+  
+  /**
+   * Define the WebSocket readyState enumeration.
+   */
+  WebSocket.CONNECTING = 0;
+  WebSocket.OPEN = 1;
+  WebSocket.CLOSING = 2;
+  WebSocket.CLOSED = 3;
+
+  WebSocket.__flash = null;
+  WebSocket.__instances = {};
+  WebSocket.__tasks = [];
+  WebSocket.__nextId = 0;
+  
+  /**
+   * Load a new flash security policy file.
+   * @param {string} url
+   */
+  WebSocket.loadFlashPolicyFile = function(url){
+    WebSocket.__addTask(function() {
+      WebSocket.__flash.loadManualPolicyFile(url);
+    });
+  };
+
+  /**
+   * Loads WebSocketMain.swf and creates WebSocketMain object in Flash.
+   */
+  WebSocket.__initialize = function() {
+    if (WebSocket.__flash) return;
+    
+    if (WebSocket.__swfLocation) {
+      // For backword compatibility.
+      window.WEB_SOCKET_SWF_LOCATION = WebSocket.__swfLocation;
+    }
+    if (!window.WEB_SOCKET_SWF_LOCATION) {
+      console.error("[WebSocket] set WEB_SOCKET_SWF_LOCATION to location of WebSocketMain.swf");
+      return;
+    }
+    var container = document.createElement("div");
+    container.id = "webSocketContainer";
+    // Hides Flash box. We cannot use display: none or visibility: hidden because it prevents
+    // Flash from loading at least in IE. So we move it out of the screen at (-100, -100).
+    // But this even doesn't work with Flash Lite (e.g. in Droid Incredible). So with Flash
+    // Lite, we put it at (0, 0). This shows 1x1 box visible at left-top corner but this is
+    // the best we can do as far as we know now.
+    container.style.position = "absolute";
+    if (WebSocket.__isFlashLite()) {
+      container.style.left = "0px";
+      container.style.top = "0px";
+    } else {
+      container.style.left = "-100px";
+      container.style.top = "-100px";
+    }
+    var holder = document.createElement("div");
+    holder.id = "webSocketFlash";
+    container.appendChild(holder);
+    document.body.appendChild(container);
+    // See this article for hasPriority:
+    // http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c36cfb8137124318eebc6-7ffd.html
+    swfobject.embedSWF(
+      WEB_SOCKET_SWF_LOCATION,
+      "webSocketFlash",
+      "1" /* width */,
+      "1" /* height */,
+      "10.0.0" /* SWF version */,
+      null,
+      null,
+      {hasPriority: true, swliveconnect : true, allowScriptAccess: "always"},
+      null,
+      function(e) {
+        if (!e.success) {
+          console.error("[WebSocket] swfobject.embedSWF failed");
+        }
+      });
+  };
+  
+  /**
+   * Called by Flash to notify JS that it's fully loaded and ready
+   * for communication.
+   */
+  WebSocket.__onFlashInitialized = function() {
+    // We need to set a timeout here to avoid round-trip calls
+    // to flash during the initialization process.
+    setTimeout(function() {
+      WebSocket.__flash = document.getElementById("webSocketFlash");
+      WebSocket.__flash.setCallerUrl(location.href);
+      WebSocket.__flash.setDebug(!!window.WEB_SOCKET_DEBUG);
+      for (var i = 0; i < WebSocket.__tasks.length; ++i) {
+        WebSocket.__tasks[i]();
+      }
+      WebSocket.__tasks = [];
+    }, 0);
+  };
+  
+  /**
+   * Called by Flash to notify WebSockets events are fired.
+   */
+  WebSocket.__onFlashEvent = function() {
+    setTimeout(function() {
+      try {
+        // Gets events using receiveEvents() instead of getting it from event object
+        // of Flash event. This is to make sure to keep message order.
+        // It seems sometimes Flash events don't arrive in the same order as they are sent.
+        var events = WebSocket.__flash.receiveEvents();
+        for (var i = 0; i < events.length; ++i) {
+          WebSocket.__instances[events[i].webSocketId].__handleEvent(events[i]);
+        }
+      } catch (e) {
+        console.error(e);
+      }
+    }, 0);
+    return true;
+  };
+  
+  // Called by Flash.
+  WebSocket.__log = function(message) {
+    console.log(decodeURIComponent(message));
+  };
+  
+  // Called by Flash.
+  WebSocket.__error = function(message) {
+    console.error(decodeURIComponent(message));
+  };
+  
+  WebSocket.__addTask = function(task) {
+    if (WebSocket.__flash) {
+      task();
+    } else {
+      WebSocket.__tasks.push(task);
+    }
+  };
+  
+  /**
+   * Test if the browser is running flash lite.
+   * @return {boolean} True if flash lite is running, false otherwise.
+   */
+  WebSocket.__isFlashLite = function() {
+    if (!window.navigator || !window.navigator.mimeTypes) {
+      return false;
+    }
+    var mimeType = window.navigator.mimeTypes["application/x-shockwave-flash"];
+    if (!mimeType || !mimeType.enabledPlugin || !mimeType.enabledPlugin.filename) {
+      return false;
+    }
+    return mimeType.enabledPlugin.filename.match(/flashlite/i) ? true : false;
+  };
+  
+  if (!window.WEB_SOCKET_DISABLE_AUTO_INITIALIZATION) {
+    if (window.addEventListener) {
+      window.addEventListener("load", function(){
+        WebSocket.__initialize();
+      }, false);
+    } else {
+      window.attachEvent("onload", function(){
+        WebSocket.__initialize();
+      });
+    }
+  }
+  
+})();

classes/novnc/include/websock.js

@@ -0,0 +1,347 @@
+/*
+ * Websock: high-performance binary WebSockets
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ *
+ * Websock is similar to the standard WebSocket object but Websock
+ * enables communication with raw TCP sockets (i.e. the binary stream)
+ * via websockify. This is accomplished by base64 encoding the data
+ * stream between Websock and websockify.
+ *
+ * Websock has built-in receive queue buffering; the message event
+ * does not contain actual data but is simply a notification that
+ * there is new data available. Several rQ* methods are available to
+ * read binary data off of the receive queue.
+ */
+
+
+// Load Flash WebSocket emulator if needed
+
+if (window.WebSocket) {
+    Websock_native = true;
+} else if (window.MozWebSocket) {
+    Websock_native = true;
+    window.WebSocket = window.MozWebSocket;
+} else {
+    /* no builtin WebSocket so load web_socket.js */
+    Websock_native = false;
+    (function () {
+        function get_INCLUDE_URI() {
+            return (typeof INCLUDE_URI !== "undefined") ?
+                INCLUDE_URI : "include/";
+        }
+
+        var start = "<script src='" + get_INCLUDE_URI(),
+            end = "'><\/script>", extra = "";
+
+        WEB_SOCKET_SWF_LOCATION = get_INCLUDE_URI() +
+                    "web-socket-js/WebSocketMain.swf";
+        if (Util.Engine.trident) {
+            Util.Debug("Forcing uncached load of WebSocketMain.swf");
+            WEB_SOCKET_SWF_LOCATION += "?" + Math.random();
+        }
+        extra += start + "web-socket-js/swfobject.js" + end;
+        extra += start + "web-socket-js/web_socket.js" + end;
+        document.write(extra);
+    }());
+}
+
+
+function Websock() {
+"use strict";
+
+var api = {},         // Public API
+    websocket = null, // WebSocket object
+    rQ = [],          // Receive queue
+    rQi = 0,          // Receive queue index
+    rQmax = 10000,    // Max receive queue size before compacting
+    sQ = [],          // Send queue
+
+    eventHandlers = {
+        'message' : function() {},
+        'open'    : function() {},
+        'close'   : function() {},
+        'error'   : function() {}
+    },
+
+    test_mode = false;
+
+
+//
+// Queue public functions
+//
+
+function get_sQ() {
+    return sQ;
+}
+
+function get_rQ() {
+    return rQ;
+}
+function get_rQi() {
+    return rQi;
+}
+function set_rQi(val) {
+    rQi = val;
+};
+
+function rQlen() {
+    return rQ.length - rQi;
+}
+
+function rQpeek8() {
+    return (rQ[rQi]      );
+}
+function rQshift8() {
+    return (rQ[rQi++]      );
+}
+function rQunshift8(num) {
+    if (rQi === 0) {
+        rQ.unshift(num);
+    } else {
+        rQi -= 1;
+        rQ[rQi] = num;
+    }
+
+}
+function rQshift16() {
+    return (rQ[rQi++] <<  8) +
+           (rQ[rQi++]      );
+}
+function rQshift32() {
+    return (rQ[rQi++] << 24) +
+           (rQ[rQi++] << 16) +
+           (rQ[rQi++] <<  8) +
+           (rQ[rQi++]      );
+}
+function rQshiftStr(len) {
+    var arr = rQ.slice(rQi, rQi + len);
+    rQi += len;
+    return arr.map(function (num) {
+            return String.fromCharCode(num); } ).join('');
+
+}
+function rQshiftBytes(len) {
+    rQi += len;
+    return rQ.slice(rQi-len, rQi);
+}
+
+function rQslice(start, end) {
+    if (end) {
+        return rQ.slice(rQi + start, rQi + end);
+    } else {
+        return rQ.slice(rQi + start);
+    }
+}
+
+// Check to see if we must wait for 'num' bytes (default to FBU.bytes)
+// to be available in the receive queue. Return true if we need to
+// wait (and possibly print a debug message), otherwise false.
+function rQwait(msg, num, goback) {
+    var rQlen = rQ.length - rQi; // Skip rQlen() function call
+    if (rQlen < num) {
+        if (goback) {
+            if (rQi < goback) {
+                throw("rQwait cannot backup " + goback + " bytes");
+            }
+            rQi -= goback;
+        }
+        //Util.Debug("   waiting for " + (num-rQlen) +
+        //           " " + msg + " byte(s)");
+        return true;  // true means need more data
+    }
+    return false;
+}
+
+//
+// Private utility routines
+//
+
+function encode_message() {
+    /* base64 encode */
+    return Base64.encode(sQ);
+}
+
+function decode_message(data) {
+    //Util.Debug(">> decode_message: " + data);
+    /* base64 decode */
+    rQ = rQ.concat(Base64.decode(data, 0));
+    //Util.Debug(">> decode_message, rQ: " + rQ);
+}
+
+
+//
+// Public Send functions
+//
+
+function flush() {
+    if (websocket.bufferedAmount !== 0) {
+        Util.Debug("bufferedAmount: " + websocket.bufferedAmount);
+    }
+    if (websocket.bufferedAmount < api.maxBufferedAmount) {
+        //Util.Debug("arr: " + arr);
+        //Util.Debug("sQ: " + sQ);
+        if (sQ.length > 0) {
+            websocket.send(encode_message(sQ));
+            sQ = [];
+        }
+        return true;
+    } else {
+        Util.Info("Delaying send, bufferedAmount: " +
+                websocket.bufferedAmount);
+        return false;
+    }
+}
+
+// overridable for testing
+function send(arr) {
+    //Util.Debug(">> send_array: " + arr);
+    sQ = sQ.concat(arr);
+    return flush();
+}
+
+function send_string(str) {
+    //Util.Debug(">> send_string: " + str);
+    api.send(str.split('').map(
+        function (chr) { return chr.charCodeAt(0); } ) );
+}
+
+//
+// Other public functions
+
+function recv_message(e) {
+    //Util.Debug(">> recv_message: " + e.data.length);
+
+    try {
+        decode_message(e.data);
+        if (rQlen() > 0) {
+            eventHandlers.message();
+            // Compact the receive queue
+            if (rQ.length > rQmax) {
+                //Util.Debug("Compacting receive queue");
+                rQ = rQ.slice(rQi);
+                rQi = 0;
+            }
+        } else {
+            Util.Debug("Ignoring empty message");
+        }
+    } catch (exc) {
+        if (typeof exc.stack !== 'undefined') {
+            Util.Warn("recv_message, caught exception: " + exc.stack);
+        } else if (typeof exc.description !== 'undefined') {
+            Util.Warn("recv_message, caught exception: " + exc.description);
+        } else {
+            Util.Warn("recv_message, caught exception:" + exc);
+        }
+        if (typeof exc.name !== 'undefined') {
+            eventHandlers.error(exc.name + ": " + exc.message);
+        } else {
+            eventHandlers.error(exc);
+        }
+    }
+    //Util.Debug("<< recv_message");
+}
+
+
+// Set event handlers
+function on(evt, handler) { 
+    eventHandlers[evt] = handler;
+}
+
+function init() {
+    rQ         = [];
+    rQi        = 0;
+    sQ         = [];
+    websocket  = null;
+}
+
+function open(uri) {
+    init();
+
+    if (test_mode) {
+        websocket = {};
+    } else {
+        websocket = new WebSocket(uri, 'base64');
+        // TODO: future native binary support
+        //websocket = new WebSocket(uri, ['binary', 'base64']);
+    }
+
+    websocket.onmessage = recv_message;
+    websocket.onopen = function() {
+        Util.Debug(">> WebSock.onopen");
+        if (websocket.protocol) {
+            Util.Info("Server chose sub-protocol: " + websocket.protocol);
+        }
+        eventHandlers.open();
+        Util.Debug("<< WebSock.onopen");
+    };
+    websocket.onclose = function(e) {
+        Util.Debug(">> WebSock.onclose");
+        eventHandlers.close(e);
+        Util.Debug("<< WebSock.onclose");
+    };
+    websocket.onerror = function(e) {
+        Util.Debug(">> WebSock.onerror: " + e);
+        eventHandlers.error(e);
+        Util.Debug("<< WebSock.onerror");
+    };
+}
+
+function close() {
+    if (websocket) {
+        if ((websocket.readyState === WebSocket.OPEN) ||
+            (websocket.readyState === WebSocket.CONNECTING)) {
+            Util.Info("Closing WebSocket connection");
+            websocket.close();
+        }
+        websocket.onmessage = function (e) { return; };
+    }
+}
+
+// Override internal functions for testing
+// Takes a send function, returns reference to recv function
+function testMode(override_send) {
+    test_mode = true;
+    api.send = override_send;
+    api.close = function () {};
+    return recv_message;
+}
+
+function constructor() {
+    // Configuration settings
+    api.maxBufferedAmount = 200;
+
+    // Direct access to send and receive queues
+    api.get_sQ       = get_sQ;
+    api.get_rQ       = get_rQ;
+    api.get_rQi      = get_rQi;
+    api.set_rQi      = set_rQi;
+
+    // Routines to read from the receive queue
+    api.rQlen        = rQlen;
+    api.rQpeek8      = rQpeek8;
+    api.rQshift8     = rQshift8;
+    api.rQunshift8   = rQunshift8;
+    api.rQshift16    = rQshift16;
+    api.rQshift32    = rQshift32;
+    api.rQshiftStr   = rQshiftStr;
+    api.rQshiftBytes = rQshiftBytes;
+    api.rQslice      = rQslice;
+    api.rQwait       = rQwait;
+
+    api.flush        = flush;
+    api.send         = send;
+    api.send_string  = send_string;
+
+    api.on           = on;
+    api.init         = init;
+    api.open         = open;
+    api.close        = close;
+    api.testMode     = testMode;
+
+    return api;
+}
+
+return constructor();
+
+}

classes/novnc/include/webutil.js

@@ -0,0 +1,148 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+"use strict";
+/*jslint bitwise: false, white: false */
+/*global window, document */
+
+// Globals defined here
+var WebUtil = {}, $D;
+
+/*
+ * Simple DOM selector by ID
+ */
+if (!window.$D) {
+    $D = function (id) {
+        if (document.getElementById) {
+            return document.getElementById(id);
+        } else if (document.all) {
+            return document.all[id];
+        } else if (document.layers) {
+            return document.layers[id];
+        }
+        return undefined;
+    };
+}
+
+
+/* 
+ * ------------------------------------------------------
+ * Namespaced in WebUtil
+ * ------------------------------------------------------
+ */
+
+// init log level reading the logging HTTP param
+WebUtil.init_logging = function() {
+    Util._log_level = (document.location.href.match(
+         /logging=([A-Za-z0-9\._\-]*)/) ||
+         ['', Util._log_level])[1];
+    
+    Util.init_logging()
+}
+WebUtil.init_logging();
+
+
+WebUtil.dirObj = function (obj, depth, parent) {
+    var i, msg = "", val = "";
+    if (! depth) { depth=2; }
+    if (! parent) { parent= ""; }
+
+    // Print the properties of the passed-in object 
+    for (i in obj) {
+        if ((depth > 1) && (typeof obj[i] === "object")) { 
+            // Recurse attributes that are objects
+            msg += WebUtil.dirObj(obj[i], depth-1, parent + "." + i);
+        } else {
+            //val = new String(obj[i]).replace("\n", " ");
+            if (typeof(obj[i]) === "undefined") {
+                val = "undefined";
+            } else {
+                val = obj[i].toString().replace("\n", " ");
+            }
+            if (val.length > 30) {
+                val = val.substr(0,30) + "...";
+            } 
+            msg += parent + "." + i + ": " + val + "\n";
+        }
+    }
+    return msg;
+};
+
+// Read a query string variable
+WebUtil.getQueryVar = function(name, defVal) {
+    var re = new RegExp('[?][^#]*' + name + '=([^&#]*)');
+    if (typeof defVal === 'undefined') { defVal = null; }
+    return (document.location.href.match(re) || ['',defVal])[1];
+};
+
+
+/*
+ * Cookie handling. Dervied from: http://www.quirksmode.org/js/cookies.html
+ */
+
+// No days means only for this browser session
+WebUtil.createCookie = function(name,value,days) {
+    var date, expires;
+    if (days) {
+        date = new Date();
+        date.setTime(date.getTime()+(days*24*60*60*1000));
+        expires = "; expires="+date.toGMTString();
+    }
+    else {
+        expires = "";
+    }
+    document.cookie = name+"="+value+expires+"; path=/";
+};
+
+WebUtil.readCookie = function(name, defaultValue) {
+    var i, c, nameEQ = name + "=", ca = document.cookie.split(';');
+    for(i=0; i < ca.length; i += 1) {
+        c = ca[i];
+        while (c.charAt(0) === ' ') { c = c.substring(1,c.length); }
+        if (c.indexOf(nameEQ) === 0) { return c.substring(nameEQ.length,c.length); }
+    }
+    return (typeof defaultValue !== 'undefined') ? defaultValue : null;
+};
+
+WebUtil.eraseCookie = function(name) {
+    WebUtil.createCookie(name,"",-1);
+};
+
+/*
+ * Alternate stylesheet selection
+ */
+WebUtil.getStylesheets = function() { var i, links, sheets = [];
+    links = document.getElementsByTagName("link");
+    for (i = 0; i < links.length; i += 1) {
+        if (links[i].title &&
+            links[i].rel.toUpperCase().indexOf("STYLESHEET") > -1) {
+            sheets.push(links[i]);
+        }
+    }
+    return sheets;
+};
+
+// No sheet means try and use value from cookie, null sheet used to
+// clear all alternates.
+WebUtil.selectStylesheet = function(sheet) {
+    var i, link, sheets = WebUtil.getStylesheets();
+    if (typeof sheet === 'undefined') {
+        sheet = 'default';
+    }
+    for (i=0; i < sheets.length; i += 1) {
+        link = sheets[i];
+        if (link.title === sheet) {    
+            Util.Debug("Using stylesheet " + sheet);
+            link.disabled = false;
+        } else {
+            //Util.Debug("Skipping stylesheet " + link.title);
+            link.disabled = true;
+        }
+    }
+    return sheet;
+};

classes/novnc/vnc.html

@@ -0,0 +1,180 @@
+<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.1//EN" "http://www.openmobilealliance.org/tech/DTD/xhtml-mobile11.dtd">
+<html>
+<head>
+
+   <!--
+    noVNC example: simple example using default UI
+    Copyright (C) 2011 Joel Martin
+    Licensed under LGPL-3 (see LICENSE.txt)
+    -->
+    <title>noVNC</title>
+
+    <meta charset="utf-8">
+
+    <!-- Always force latest IE rendering engine (even in intranet) & Chrome Frame
+                Remove this if you use the .htaccess -->
+    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+
+    <!-- Apple iOS Safari settings -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta names="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+    <!-- App Start Icon  -->
+    <link rel="apple-touch-startup-image" href="images/screen_320x460.png" />
+    <!-- For iOS devices set the icon to use if user bookmarks app on their homescreen -->
+    <link rel="apple-touch-icon" href="images/screen_57x57.png">
+    <!--
+    <link rel="apple-touch-icon-precomposed" href="images/screen_57x57.png" />
+    -->
+
+
+    <!-- Stylesheets -->
+    <link rel="stylesheet" href="include/base.css" />
+    <link rel="alternate stylesheet" href="include/black.css" TITLE="Black" />
+    <link rel="alternate stylesheet" href="include/blue.css" TITLE="Blue" />
+
+    <!--
+    <script type='text/javascript'
+        src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
+    -->
+
+    <script src="include/vnc.js"></script>
+    <script src="include/ui.js"></script>
+
+</head>
+
+<body>
+    <div id="noVNC-control-bar">
+        <!--noVNC Mobile Device only Buttons-->
+        <div class="noVNC-buttons-left">
+            <input type="image" src="images/drag.png"
+                id="noVNC_view_drag_button" class="noVNC_status_button"
+                title="Move/Drag Viewport"
+                onclick="UI.setViewDrag();">
+            <div id="noVNC_mobile_buttons">
+                <input type="image" src="images/mouse_none.png"
+                    id="noVNC_mouse_button0" class="noVNC_status_button"
+                    onclick="UI.setMouseButton(1);">
+                <input type="image" src="images/mouse_left.png"
+                    id="noVNC_mouse_button1" class="noVNC_status_button"
+                    onclick="UI.setMouseButton(2);">
+                <input type="image" src="images/mouse_middle.png"
+                    id="noVNC_mouse_button2" class="noVNC_status_button"
+                    onclick="UI.setMouseButton(4);">
+                <input type="image" src="images/mouse_right.png"
+                    id="noVNC_mouse_button4" class="noVNC_status_button"
+                    onclick="UI.setMouseButton(0);">
+                <input type="image" src="images/keyboard.png"
+                    id="showKeyboard" class="noVNC_status_button"
+                    value="Keyboard" title="Show Keyboard"
+                    onclick="UI.showKeyboard()"/>
+                <input type="email"
+                    autocapitalize="off" autocorrect="off"
+                    id="keyboardinput" class="noVNC_status_button"
+                    onKeyDown="onKeyDown(event);" onblur="UI.keyInputBlur();"/>
+            </div>
+        </div>
+
+        <!--noVNC Buttons-->
+        <div class="noVNC-buttons-right">
+            <input type="image" src="images/ctrlaltdel.png"
+                 id="sendCtrlAltDelButton" class="noVNC_status_button"
+                title="Send Ctrl-Alt-Del"
+                onclick="UI.sendCtrlAltDel();" />
+            <input type="image" src="images/clipboard.png"
+                id="clipboardButton" class="noVNC_status_button"
+                title="Clipboard"
+                onclick="UI.toggleClipboardPanel();" />
+            <input type="image" src="images/settings.png"
+                id="settingsButton" class="noVNC_status_button"
+                title="Settings"
+                onclick="UI.toggleSettingsPanel();" />
+            <input type="image" src="images/connect.png"
+                id="connectButton" class="noVNC_status_button_selected"
+                title="Connect"
+                onclick="UI.toggleConnectPanel()" />
+            <input type="image" src="images/disconnect.png"
+                id="disconnectButton" class="noVNC_status_button"
+                title="Disconnect"
+                onclick="UI.disconnect()" />
+        </div>
+
+        <!-- Clipboard Panel -->
+        <div id="noVNC_clipboard" class="triangle-right top">
+            <textarea id="noVNC_clipboard_text" rows=5
+                onfocus="UI.displayBlur();" onblur="UI.displayFocus();"
+                onchange="UI.clipSend();">
+            </textarea>
+            <br />
+            <input id="noVNC_clipboard_clear_button" type="button"
+                value="Clear" onclick="UI.clipClear();">
+        </div>
+
+        <!-- Settings Panel -->
+        <div id="noVNC_settings" class="triangle-right top">
+            <span id="noVNC_settings_menu" onmouseover="UI.displayBlur();"
+                                           onmouseout="UI.displayFocus();">
+                <ul>
+                    <li><input id="noVNC_encrypt" type="checkbox"> Encrypt</li>
+                    <li><input id="noVNC_true_color" type="checkbox" checked> True Color</li>
+                    <li><input id="noVNC_cursor" type="checkbox"> Local Cursor</li>
+                    <li><input id="noVNC_clip" type="checkbox"> Clip to window</li>
+                    <li><input id="noVNC_shared" type="checkbox"> Shared Mode</li>
+                    <li><input id="noVNC_connectTimeout" type="input"> Connect Timeout (s)</li>
+                    <li><input id="noVNC_path" type="input"> Path</li>
+                    <hr>
+                    <!-- Stylesheet selection dropdown -->
+                    <li><label><strong>Style: </strong>
+                        <select id="noVNC_stylesheet" name="vncStyle">
+                            <option value="default">default</option>
+                        </select></label>
+                    </li>
+
+                    <!-- Logging selection dropdown -->
+                    <li><label><strong>Logging: </strong>
+                        <select id="noVNC_logging" name="vncLogging">
+                        </select></label>
+                    </li>
+                    <hr>
+                    <li><input type="button" id="noVNC_apply" value="Apply"
+                         onclick="UI.settingsApply()"></li>
+                </ul>
+            </span>
+        </div>
+
+        <!-- Connection Panel -->
+        <div id="noVNC_controls" class="triangle-right top">
+            <ul>
+                <li><label><strong>Host: </strong><input id="noVNC_host" /></label></li>
+                <li><label><strong>Port: </strong><input id="noVNC_port" /></label></li>
+                <li><label><strong>Password: </strong><input id="noVNC_password" type="password" /></label></li>
+                <li><input id="noVNC_connect_button" type="button" value="Connect" onclick="UI.connect();"></li>
+            </ul>
+        </div>
+
+    </div> <!-- End of noVNC-control-bar -->
+
+
+    <div id="noVNC_screen">
+        <div id="noVNC_screen_pad"></div>
+
+        <div id="noVNC_status_bar" class="noVNC_status_bar">
+                <div id="noVNC_status">Loading</div>
+        </div>
+
+        <h1 id="noVNC_logo"><span>no</span><br />VNC</h1>
+
+        <!-- HTML5 Canvas -->
+        <div id="noVNC_container">
+            <canvas id="noVNC_canvas" width="640px" height="20px">
+                        Canvas not supported.
+            </canvas>
+        </div>
+
+    </div>
+
+    <script>
+        window.onload = UI.load;
+    </script>
+ </body>
+</html>

classes/novnc/vnc_auto.html

@@ -0,0 +1,116 @@
+<!DOCTYPE html>
+<html>
+    <!-- 
+    noVNC Example: Automatically connect on page load.
+    Copyright (C) 2011 Joel Martin
+    Licensed under LGPL-3 (see LICENSE.txt)
+
+    Connect parameters are provided in query string:
+        http://example.com/?host=HOST&port=PORT&encrypt=1&true_color=1
+    -->
+    <head>
+        <title>noVNC</title>
+        <meta http-equiv="X-UA-Compatible" content="chrome=1">
+        <link rel="stylesheet" href="include/base.css" title="plain">
+        <!--
+        <script type='text/javascript' 
+            src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
+        -->
+        <script src="include/vnc.js"></script>
+    </head>
+
+    <body style="margin: 0px;">
+        <div id="noVNC_screen">
+            <div id="noVNC_status_bar" class="noVNC_status_bar" style="margin-top: 0px;">
+                <table border=0 width="100%"><tr>
+                    <td><div id="noVNC_status">Loading</div></td>
+                    <td width="1%"><div id="noVNC_buttons">
+                        <input type=button value="Send CtrlAltDel"
+                            id="sendCtrlAltDelButton">
+                            </div></td>
+                </tr></table>
+            </div>
+            <canvas id="noVNC_canvas" width="640px" height="20px">
+                Canvas not supported.
+            </canvas>
+        </div>
+
+        <script>
+        /*jslint white: false */
+        /*global window, $, Util, RFB, */
+        "use strict";
+
+        var rfb;
+
+        function passwordRequired(rfb) {
+            var msg;
+            msg = '<form onsubmit="return setPassword();"';
+            msg += '  style="margin-bottom: 0px">';
+            msg += 'Password Required: ';
+            msg += '<input type=password size=10 id="password_input" class="noVNC_status">';
+            msg += '<\/form>';
+            $D('noVNC_status_bar').setAttribute("class", "noVNC_status_warn");
+            $D('noVNC_status').innerHTML = msg;
+        }
+        function setPassword() {
+            rfb.sendPassword($D('password_input').value);
+            return false;
+        }
+        function sendCtrlAltDel() {
+            rfb.sendCtrlAltDel();
+            return false;
+        }
+        function updateState(rfb, state, oldstate, msg) {
+            var s, sb, cad, level;
+            s = $D('noVNC_status');
+            sb = $D('noVNC_status_bar');
+            cad = $D('sendCtrlAltDelButton');
+            switch (state) {
+                case 'failed':       level = "error";  break;
+                case 'fatal':        level = "error";  break;
+                case 'normal':       level = "normal"; break;
+                case 'disconnected': level = "normal"; break;
+                case 'loaded':       level = "normal"; break;
+                default:             level = "warn";   break;
+            }
+
+            if (state === "normal") { cad.disabled = false; }
+            else                    { cad.disabled = true; }
+
+            if (typeof(msg) !== 'undefined') {
+                sb.setAttribute("class", "noVNC_status_" + level);
+                s.innerHTML = msg;
+            }
+        }
+
+        window.onload = function () {
+            var host, port, password, path;
+
+            $D('sendCtrlAltDelButton').style.display = "inline";
+            $D('sendCtrlAltDelButton').onclick = sendCtrlAltDel;
+
+            document.title = unescape(WebUtil.getQueryVar('title', 'noVNC'));
+            host = WebUtil.getQueryVar('host', null);
+            port = WebUtil.getQueryVar('port', null);
+            password = WebUtil.getQueryVar('password', '');
+            path = WebUtil.getQueryVar('path', '');
+            if ((!host) || (!port)) {
+                updateState('failed',
+                    "Must specify host and port in URL");
+                return;
+            }
+
+            rfb = new RFB({'target':       $D('noVNC_canvas'),
+                           'encrypt':      WebUtil.getQueryVar('encrypt', false),
+                           'true_color':   WebUtil.getQueryVar('true_color', true),
+                           'local_cursor': WebUtil.getQueryVar('cursor', true),
+                           'shared':       WebUtil.getQueryVar('shared', true),
+                           'updateState':  updateState,
+                           'onPasswordRequired':  passwordRequired});
+            rfb.connect(host, port, password, path);
+        };
+        </script>
+
+    </body>
+</html>
+

libvncserver/httpd.c

@@ -346,12 +346,6 @@ httpProcessInput(rfbScreenInfoPtr rfbScreen)
 	return;
     }
 
-    if (strchr(fname+1, '/') != NULL) {
-	rfbErr("httpd: asking for file in other directory\n");
-	rfbWriteExact(&cl, NOT_FOUND_STR, strlen(NOT_FOUND_STR));
-	httpCloseSock(rfbScreen);
-	return;
-    }
 
     getpeername(rfbScreen->httpSock, (struct sockaddr *)&addr, &addrlen);
     rfbLog("httpd: get '%s' for %s\n", fname+1,
@@ -447,6 +441,10 @@ httpProcessInput(rfbScreenInfoPtr rfbScreen)
 		    sprintf(str, "%d", rfbScreen->port);
 		    rfbWriteExact(&cl, str, strlen(str));
 
+		} else if (compareAndSkip(&ptr, "$HOST")) {
+
+		    rfbWriteExact(&cl, rfbScreen->thisHost, strlen(rfbScreen->thisHost));
+
 		} else if (compareAndSkip(&ptr, "$DESKTOP")) {
 
 		    rfbWriteExact(&cl, rfbScreen->desktopName, strlen(rfbScreen->desktopName));