Update noVNC webclient.

2b4f616d · Christian Beier · 2fba1be4 · 2b4f616d · 2b4f616d · 2b4f616d
Commit 2b4f616d authored Aug 19, 2012 by Christian Beier
17 changed files
--- a/webclients/novnc/LICENSE.txt
+++ b/webclients/novnc/LICENSE.txt
 noVNC is Copyright (C) 2011 Joel Martin <github@martintribe.org>
+The noVNC core library is licensed under the LGPLv3 (GNU Lesser
+General Public License). The noVNC core library is composed of the
+Javascript code necessary for full noVNC operation. This includes (but
+is not limited to):
+    include/base64.js
+    include/des.js
+    include/display.js
+    include/input.js
+    include/jsunzip.js
+    include/logo.js
+    include/rfb.js
+    include/ui.js
+    include/util.js
+    include/vnc.js
+    include/websock.js
+    include/webutil.js
+The HTML, CSS, font and images files that included with the noVNC
+source distibution (or repository) are not considered part of the
+noVNC core library and are licensed under more permissive licenses.
+The intent is to allow easy integration of noVNC into existing web
+sites and web applications.
+The HTML, CSS, font and image files are licensed as follows:
+    *.html                     : 2-Clause BSD license
+    include/*.css              : 2-Clause BSD license
+    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/
+In addition the following file, which is part of the noVNC core
+library, may be licensed under either the LGPL-2, LGPL-3 or MPL 2.0
+when it used separately from the noVNC core library.
+    include/input.js           : LGPL-2 or any later version
 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)
+The are several files and projects that have been incorporated into
-version 3 with the following exceptions (all LGPL-3 compatible):
+the noVNC core library. Here is a list of those files and the original
+licenses (all LGPL-3 compatible):
-    include/input.js           : LGPL-2 or any later version
+    include/base64.js          : MPL 1.1, GPL-2 or LGPL-2.1
-    include/base64.js          : Dual GPL-2 or LGPL-2.1
    include/des.js             : Various BSD style licenses
    include/jsunzip.js         : zlib/libpng license
-    include/web-socket-js/     : New BSD license. Source code at
+    include/web-socket-js/     : New BSD license (3-clause). Source code at
                                 http://github.com/gimite/web-socket-js
-    include/Orbitron*          : SIL Open Font License 1.1
+The following license texts are included:
-                                 (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
+    docs/LICENSE.BSD-3-Clause (New BSD)
+    docs/LICENSE.BSD-2-Clause (Simplified BSD / FreeBSD)
+    docs/LICENSE.zlib
+    docs/LICENSE.MPL-2.0
 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
+    http://www.mozilla.org/MPL/1.1/
+    http://www.mozilla.org/MPL/2.0/
--- a/webclients/novnc/README.md
+++ b/webclients/novnc/README.md
@@ -10,7 +10,7 @@ Notable commits, announcements and news are posted to
 @<a href="http://www.twitter.com/noVNC">noVNC</a>
 There are many companies/projects that have integrated noVNC into
-their products including: [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/), [SlapOS](http://www.slapos.org), [Intel MeshCentral](https://meshcentral.com), [Amahi](http://amahi.org), [Brightbox](http://brightbox.com/), [Foreman](http://theforeman.org) and [LibVNCServer](http://libvncserver.sourceforge.net). See [this wiki page](https://github.com/kanaka/noVNC/wiki/ProjectsCompanies-using-noVNC) for more info and links.
+their products including: [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/), [SlapOS](http://www.slapos.org), [Intel MeshCentral](https://meshcentral.com), [Amahi](http://amahi.org), [Brightbox](http://brightbox.com/), [Foreman](http://theforeman.org), [LibVNCServer](http://libvncserver.sourceforge.net) and [PocketVNC](http://www.pocketvnc.com/blog/?page_id=866). See [this wiki page](https://github.com/kanaka/noVNC/wiki/ProjectsCompanies-using-noVNC) for more info and links.
 ### Features
@@ -56,7 +56,8 @@ See more screenshots <a href="http://kanaka.github.com/noVNC/screenshots.html">h
 ### Server Requirements
 Unless you are using a VNC server with support for WebSockets
-connections (such as [x11vnc/libvncserver](http://libvncserver.sourceforge.net/)),
+connections (such as [x11vnc/libvncserver](http://libvncserver.sourceforge.net/) or
+[PocketVNC](http://www.pocketvnc.com/blog/?page_id=866)),
 you need to use a WebSockets to TCP socket proxy. There is
 a python proxy included ('websockify').
@@ -76,8 +77,9 @@ a python proxy included ('websockify').
 ### Other Pages
-* [Advanced Usage](https://github.com/kanaka/noVNC/wiki/Advanced-usage). Generating an SSL
+* [Encrypted Connections](https://github.com/kanaka/websockify/wiki/Encrypted-Connections). How to setup websockify so that you can use encrypted connections from noVNC.
-  certificate, starting a VNC server, advanced websockify usage, etc.
+* [Advanced Usage](https://github.com/kanaka/noVNC/wiki/Advanced-usage). Starting a VNC server, advanced websockify usage, etc.
 * [Integrating noVNC](https://github.com/kanaka/noVNC/wiki/Integration) into existing projects.

--- a/webclients/novnc/include/base.css
+++ b/webclients/novnc/include/base.css
+/*
+ * noVNC base CSS
+ * Copyright (C) 2012 Joel Martin
+ * noVNC is licensed under the LGPL-3 (see LICENSE.txt)
+ * This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
+ */
 body {
  margin:0;
  padding:0;

--- a/webclients/novnc/include/black.css
+++ b/webclients/novnc/include/black.css
+/*
+ * noVNC base CSS
+ * Copyright (C) 2012 Joel Martin
+ * noVNC is licensed under the LGPL-3 (see LICENSE.txt)
+ * This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
+ */
 #keyboardinput {
  background-color:#000;
 }

--- a/webclients/novnc/include/blue.css
+++ b/webclients/novnc/include/blue.css
+/*
+ * noVNC base CSS
+ * Copyright (C) 2012 Joel Martin
+ * noVNC is licensed under the LGPL-3 (see LICENSE.txt)
+ * This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
+ */
 #noVNC-control-bar {
  background-color:#04073d;

--- a/webclients/novnc/include/display.js
+++ b/webclients/novnc/include/display.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * See README.md for usage and integration instructions.
@@ -19,9 +19,12 @@ var that           = {},  // Public API methods
    c_ctx          = null,
    c_forceCanvas  = false,
+    // Queued drawing actions for in-order rendering
+    renderQ        = [],
    // Predefine function variables (jslint)
    imageDataGet, rgbImageData, bgrxImageData, cmapImageData,
-    setFillColor, rescale,
+    setFillColor, rescale, scan_renderQ,
    // The full frame buffer (logical canvas) size
    fb_width        = 0,
@@ -412,6 +415,8 @@ that.clear = function() {
        c_ctx.clearRect(0, 0, viewport.w, viewport.h);
    }
+    renderQ = [];
    // No benefit over default ("source-over") in Chrome and firefox
    //c_ctx.globalCompositeOperation = "copy";
 };
@@ -577,6 +582,58 @@ that.blitStringImage = function(str, x, y) {
    img.src = str;
 };
+// Wrap ctx.drawImage but relative to viewport
+that.drawImage = function(img, x, y) {
+    c_ctx.drawImage(img, x - viewport.x, y - viewport.y);
+};
+that.renderQ_push = function(action) {
+    renderQ.push(action);
+    if (renderQ.length === 1) {
+        // If this can be rendered immediately it will be, otherwise
+        // the scanner will start polling the queue (every
+        // requestAnimationFrame interval)
+        scan_renderQ();
+    }
+};
+scan_renderQ = function() {
+    var a, ready = true;
+    while (ready && renderQ.length > 0) {
+        a = renderQ[0];
+        switch (a.type) {
+            case 'copy':
+                that.copyImage(a.old_x, a.old_y, a.x, a.y, a.width, a.height);
+                break;
+            case 'fill':
+                that.fillRect(a.x, a.y, a.width, a.height, a.color);
+                break;
+            case 'blit':
+                that.blitImage(a.x, a.y, a.width, a.height, a.data, 0);
+                break;
+            case 'blitRgb':
+                that.blitRgbImage(a.x, a.y, a.width, a.height, a.data, 0);
+                break;
+            case 'img':    
+                if (a.img.complete) {
+                    that.drawImage(a.img, a.x, a.y);
+                } else {
+                    // We need to wait for this image to 'load'
+                    // to keep things in-order
+                    ready = false;
+                }
+                break;
+        }
+        if (ready) {
+            a = renderQ.shift();
+        }
+    }
+    if (renderQ.length > 0) {
+        requestAnimFrame(scan_renderQ);
+    }
+};
 that.changeCursor = function(pixels, mask, hotx, hoty, w, h) {
    if (conf.cursor_uri === false) {
        Util.Warn("changeCursor called but no cursor data URI support");

--- a/webclients/novnc/include/input.js
+++ b/webclients/novnc/include/input.js
@@ -1167,14 +1167,14 @@ unicodeTable = {
    0x21D4 : 0x08cd,
    0x21D2 : 0x08ce,
    0x2261 : 0x08cf,
-    0x221A : 0x08d6,
+    //0x221A : 0x08d6,
    0x2282 : 0x08da,
    0x2283 : 0x08db,
    0x2229 : 0x08dc,
    0x222A : 0x08dd,
    0x2227 : 0x08de,
    0x2228 : 0x08df,
-    0x2202 : 0x08ef,
+    //0x2202 : 0x08ef,
    0x0192 : 0x08f6,
    0x2190 : 0x08fb,
    0x2191 : 0x08fc,
@@ -1509,7 +1509,7 @@ unicodeTable = {
    0x012D : 0x100012d,
    0x01B6 : 0x10001b6,
    0x01E7 : 0x10001e7,
-    0x01D2 : 0x10001d2,
+    //0x01D2 : 0x10001d2,
    0x0275 : 0x1000275,
    0x018F : 0x100018f,
    0x0259 : 0x1000259,

--- a/webclients/novnc/include/playback.js
+++ b/webclients/novnc/include/playback.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.LGPL-3)
 */

--- a/webclients/novnc/include/rfb.js
+++ b/webclients/novnc/include/rfb.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * See README.md for usage and integration instructions.
@@ -26,7 +26,7 @@ var that           = {},  // Public API methods
    pixelFormat, clientEncodings, fbUpdateRequest, fbUpdateRequests,
    keyEvent, pointerEvent, clientCutText,
-    getTightCLength, extract_data_uri, scan_tight_imgQ,
+    getTightCLength, extract_data_uri,
    keyPress, mouseButton, mouseMove,
    checkEvents,  // Overridable for testing
@@ -93,7 +93,6 @@ var that           = {},  // Public API methods
        encoding       : 0,
        subencoding    : -1,
        background     : null,
-        imgQ           : [],  // TIGHT_PNG image queue
        zlibs          : []   // TIGHT zlib streams
    },
@@ -103,7 +102,6 @@ var that           = {},  // Public API methods
    fb_height      = 0,
    fb_name        = "",
-    scan_imgQ_rate = 40, // 25 times per second or so
    last_req_time  = 0,
    rre_chunk_sz   = 100,
@@ -144,6 +142,9 @@ Util.conf_defaults(conf, that, defaults, [
    ['connectTimeout',     'rw', 'int', def_con_timeout, 'Time (s) to wait for connection'],
    ['disconnectTimeout',  'rw', 'int', 3,    'Time (s) to wait for disconnection'],
+    // UltraVNC repeater ID to connect to
+    ['repeaterID',         'rw', 'str',  '',    'RepeaterID to connect to'],
    ['viewportDrag',       'rw', 'bool', false, 'Move the viewport on mouse drags'],
    ['check_rate',         'rw', 'int', 217,  'Timing (ms) of send/receive check'],
@@ -234,21 +235,28 @@ function constructor() {
        }
    });
    ws.on('close', function(e) {
+        Util.Warn("WebSocket on-close event");
+        var msg = "";
        if (e.code) {
-            Util.Info("Close code: " + e.code + ", reason: " + e.reason + ", wasClean: " + e.wasClean);
+            msg = " (code: " + e.code;
+            if (e.reason) {
+                msg += ", reason: " + e.reason;
+            }
+            msg += ")";
        }
        if (rfb_state === 'disconnect') {
-            updateState('disconnected', 'VNC disconnected');
+            updateState('disconnected', 'VNC disconnected' + msg);
        } else if (rfb_state === 'ProtocolVersion') {
-            fail('Failed to connect to server');
+            fail('Failed to connect to server' + msg);
        } else if (rfb_state in {'failed':1, 'disconnected':1}) {
-            Util.Error("Received onclose while disconnected");
+            Util.Error("Received onclose while disconnected" + msg);
        } else  {
-            fail('Server disconnected');
+            fail('Server disconnected' + msg);
        }
    });
    ws.on('error', function(e) {
-        fail("WebSock error: " + e);
+        Util.Warn("WebSocket on-error event");
+        //fail("WebSock reported an error");
    });
@@ -307,7 +315,6 @@ init_vars = function() {
    FBU.subrects     = 0;  // RRE and HEXTILE
    FBU.lines        = 0;  // RAW
    FBU.tiles        = 0;  // HEXTILE
-    FBU.imgQ         = []; // TIGHT_PNG image queue
    FBU.zlibs        = []; // TIGHT zlib encoders
    mouse_buttonMask = 0;
    mouse_arr        = [];
@@ -419,16 +426,16 @@ updateState = function(state, statusMsg) {
        func = Util.Warn;
    }
+    cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : "";
+    func("New state '" + state + "', was '" + oldstate + "'." + cmsg);
    if ((oldstate === 'failed') && (state === 'disconnected')) {
-        // Do disconnect action, but stay in failed state.
+        // Do disconnect action, but stay in failed state
        rfb_state = 'failed';
    } else {
        rfb_state = state;
    }
-    cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : "";
-    func("New state '" + rfb_state + "', was '" + oldstate + "'." + cmsg);
    if (connTimer && (rfb_state !== 'connect')) {
        Util.Debug("Clearing connect timer");
        clearInterval(connTimer);
@@ -655,10 +662,10 @@ mouseMove = function(x, y) {
 init_msg = function() {
    //Util.Debug(">> init_msg [rfb_state '" + rfb_state + "']");
-    var strlen, reason, length, sversion, cversion,
+    var strlen, reason, length, sversion, cversion, repeaterID,
        i, types, num_types, challenge, response, bpp, depth,
        big_endian, red_max, green_max, blue_max, red_shift,
-        green_shift, blue_shift, true_color, name_length;
+        green_shift, blue_shift, true_color, name_length, is_repeater;
    //Util.Debug("ws.rQ (" + ws.rQlen() + ") " + ws.rQslice(0));
    switch (rfb_state) {
@@ -669,16 +676,27 @@ init_msg = function() {
        }
        sversion = ws.rQshiftStr(12).substr(4,7);
        Util.Info("Server ProtocolVersion: " + sversion);
+        is_repeater = 0;
        switch (sversion) {
+            case "000.000": is_repeater = 1; break; // UltraVNC repeater
            case "003.003": rfb_version = 3.3; break;
            case "003.006": rfb_version = 3.3; break;  // UltraVNC
            case "003.889": rfb_version = 3.3; break;  // Apple Remote Desktop
            case "003.007": rfb_version = 3.7; break;
            case "003.008": rfb_version = 3.8; break;
            case "004.000": rfb_version = 3.8; break;  // Intel AMT KVM
+            case "004.001": rfb_version = 3.8; break;  // RealVNC 4.6
            default:
                return fail("Invalid server version " + sversion);
        }
+        if (is_repeater) { 
+            repeaterID = conf.repeaterID;
+            while (repeaterID.length < 250) {
+                repeaterID += "\0";
+            }
+            ws.send_string(repeaterID);
+            break;
+        }
        if (rfb_version > rfb_max_version) { 
            rfb_version = rfb_max_version;
        }
@@ -876,11 +894,11 @@ init_msg = function() {
        response = response.concat(clientEncodings());
        response = response.concat(fbUpdateRequests());
        timing.fbu_rt_start = (new Date()).getTime();
+        timing.pixels = 0;
        ws.send(response);
        /* Start pushing/polling */
        setTimeout(checkEvents, conf.check_rate);
-        setTimeout(scan_tight_imgQ, scan_imgQ_rate);
        if (conf.encrypt) {
            updateState('normal', "Connected (encrypted) to: " + fb_name);
@@ -1027,7 +1045,7 @@ framebufferUpdate = function() {
            timing.pixels += FBU.width * FBU.height;
        }
-        if (FBU.rects === 0 || (timing.pixels >= (fb_width * fb_height))) {
+        if (timing.pixels >= (fb_width * fb_height)) {
            if (((FBU.width === fb_width) &&
                        (FBU.height === fb_height)) ||
                    (timing.fbu_rt_start > 0)) {
@@ -1105,9 +1123,14 @@ encHandlers.COPYRECT = function display_copy_rect() {
    var old_x, old_y;
    if (ws.rQwait("COPYRECT", 4)) { return false; }
-    old_x = ws.rQshift16();
+    display.renderQ_push({
-    old_y = ws.rQshift16();
+            'type': 'copy',
-    display.copyImage(old_x, old_y, FBU.x, FBU.y, FBU.width, FBU.height);
+            'old_x': ws.rQshift16(),
+            'old_y': ws.rQshift16(),
+            'x': FBU.x,
+            'y': FBU.y,
+            'width': FBU.width,
+            'height': FBU.height});
    FBU.rects -= 1;
    FBU.bytes = 0;
    return true;
@@ -1401,9 +1424,9 @@ function display_tight(isTightPNG) {
            }
        }
-        FBU.imgQ.push({
+        display.renderQ_push({
-                'type': 'rgb',
+                'type': 'blitRgb',
-                'img':  {'complete': true, 'data': dest},
+                'data': dest,
                'x': FBU.x,
                'y': FBU.y,
                'width': FBU.width,
@@ -1432,9 +1455,9 @@ function display_tight(isTightPNG) {
            data = decompress(ws.rQshiftBytes(clength[1]));
        }
-        FBU.imgQ.push({
+        display.renderQ_push({
-                'type': 'rgb',
+                'type': 'blitRgb',
-                'img':  {'complete': true, 'data': data},
+                'data': data,
                'x': FBU.x,
                'y': FBU.y,
                'width': FBU.width,
@@ -1456,10 +1479,10 @@ function display_tight(isTightPNG) {
    else if (ctl === 0x0A) cmode = "png";
    else if (ctl & 0x04)   cmode = "filter";
    else if (ctl < 0x04)   cmode = "copy";
-    else throw("Illegal tight compression received, ctl: " + ctl);
+    else return fail("Illegal tight compression received, ctl: " + ctl);
    if (isTightPNG && (cmode === "filter" || cmode === "copy")) {
-        throw("filter/copy received in tightPNG mode");
+        return fail("filter/copy received in tightPNG mode");
    }
    switch (cmode) {
@@ -1481,9 +1504,8 @@ function display_tight(isTightPNG) {
    case "fill":
        ws.rQshift8(); // shift off ctl
        color = ws.rQshiftBytes(fb_depth);
-        FBU.imgQ.push({
+        display.renderQ_push({
                'type': 'fill',
-                'img': {'complete': true},
                'x': FBU.x,
                'y': FBU.y,
                'width': FBU.width,
@@ -1501,14 +1523,13 @@ function display_tight(isTightPNG) {
        //           clength[0] + ", clength[1]: " + clength[1]);
        ws.rQshiftBytes(1 + clength[0]); // shift off ctl + compact length
        img = new Image();
-        //img.onload = scan_tight_imgQ;
+        img.src = "data:image/" + cmode +
-        FBU.imgQ.push({
+            extract_data_uri(ws.rQshiftBytes(clength[1]));
+        display.renderQ_push({
                'type': 'img',
                'img': img,
                'x': FBU.x,
                'y': FBU.y});
-        img.src = "data:image/" + cmode +
-            extract_data_uri(ws.rQshiftBytes(clength[1]));
        img = null;
        break;
    case "filter":
@@ -1542,32 +1563,13 @@ extract_data_uri = function(arr) {
    return ";base64," + Base64.encode(arr);
 };
-scan_tight_imgQ = function() {
-    var data, imgQ, ctx;
-    ctx = display.get_context();
-    if (rfb_state === 'normal') {
-        imgQ = FBU.imgQ;
-        while ((imgQ.length > 0) && (imgQ[0].img.complete)) {
-            data = imgQ.shift();
-            if (data.type === 'fill') {
-                display.fillRect(data.x, data.y, data.width, data.height, data.color);
-            } else if (data.type === 'rgb') {
-                display.blitRgbImage(data.x, data.y, data.width, data.height, data.img.data, 0);
-            } else {
-                ctx.drawImage(data.img, data.x, data.y);
-            }
-        }
-        setTimeout(scan_tight_imgQ, scan_imgQ_rate);
-    }
-};
 encHandlers.TIGHT = function () { return display_tight(false); };
 encHandlers.TIGHT_PNG = function () { return display_tight(true); };
 encHandlers.last_rect = function last_rect() {
-    Util.Debug(">> set_desktopsize");
+    //Util.Debug(">> last_rect");
    FBU.rects = 0;
-    Util.Debug("<< set_desktopsize");
+    //Util.Debug("<< last_rect");
    return true;
 };
@@ -1589,7 +1591,7 @@ encHandlers.DesktopSize = function set_desktopsize() {
 encHandlers.Cursor = function set_cursor() {
    var x, y, w, h, pixelslength, masklength;
-    //Util.Debug(">> set_cursor");
+    Util.Debug(">> set_cursor");
    x = FBU.x;  // hotspot-x
    y = FBU.y;  // hotspot-y
    w = FBU.width;
@@ -1610,7 +1612,7 @@ encHandlers.Cursor = function set_cursor() {
    FBU.bytes = 0;
    FBU.rects -= 1;
-    //Util.Debug("<< set_cursor");
+    Util.Debug("<< set_cursor");
    return true;
 };

--- a/webclients/novnc/include/ui.js
+++ b/webclients/novnc/include/ui.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * See README.md for usage and integration instructions.
@@ -55,6 +55,7 @@ load: function() {
    UI.initSetting('view_only', false);
    UI.initSetting('connectTimeout', 2);
    UI.initSetting('path', 'websockify');
+    UI.initSetting('repeaterID', '');
    UI.rfb = RFB({'target': $D('noVNC_canvas'),
                  'onUpdateState': UI.updateState,
@@ -270,6 +271,7 @@ toggleSettingsPanel: function() {
        UI.updateSetting('view_only');
        UI.updateSetting('connectTimeout');
        UI.updateSetting('path');
+        UI.updateSetting('repeaterID');
        UI.updateSetting('stylesheet');
        UI.updateSetting('logging');
@@ -313,6 +315,7 @@ settingsApply: function() {
    UI.saveSetting('view_only');
    UI.saveSetting('connectTimeout');
    UI.saveSetting('path');
+    UI.saveSetting('repeaterID');
    UI.saveSetting('stylesheet');
    UI.saveSetting('logging');
@@ -427,6 +430,7 @@ updateVisualState: function() {
    $D('noVNC_view_only').disabled = connected;
    $D('noVNC_connectTimeout').disabled = connected;
    $D('noVNC_path').disabled = connected;
+    $D('noVNC_repeaterID').disabled = connected;
    if (connected) {
        UI.setViewClip();
@@ -489,8 +493,10 @@ connect: function() {
    UI.rfb.set_shared(UI.getSetting('shared'));
    UI.rfb.set_view_only(UI.getSetting('view_only'));
    UI.rfb.set_connectTimeout(UI.getSetting('connectTimeout'));
+    UI.rfb.set_repeaterID(UI.getSetting('repeaterID'));
    UI.rfb.connect(host, port, password, path);
    //Close dialog.
    setTimeout(UI.setBarPosition, 100);
    $D('noVNC_logo').style.display = "none";

--- a/webclients/novnc/include/util.js
+++ b/webclients/novnc/include/util.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * See README.md for usage and integration instructions.
@@ -57,6 +57,21 @@ if (!Array.prototype.map)
  };
 }
+// 
+// requestAnimationFrame shim with setTimeout fallback
+//
+window.requestAnimFrame = (function(){
+    return  window.requestAnimationFrame       || 
+            window.webkitRequestAnimationFrame || 
+            window.mozRequestAnimationFrame    || 
+            window.oRequestAnimationFrame      || 
+            window.msRequestAnimationFrame     || 
+            function(callback){
+                window.setTimeout(callback, 1000 / 60);
+            };
+})();
 /* 
 * ------------------------------------------------------
 * Namespaced in Util
@@ -131,6 +146,8 @@ Util.conf_default = function(cfg, api, defaults, v, mode, type, defval, desc) {
            }
        } else if (type in {'integer':1, 'int':1}) {
            val = parseInt(val, 10);
+        } else if (type === 'str') {
+            val = String(val);
        } else if (type === 'func') {
            if (!val) {
                val = function () {};

--- a/webclients/novnc/include/vnc.js
+++ b/webclients/novnc/include/vnc.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * See README.md for usage and integration instructions.

--- a/webclients/novnc/include/web-socket-js/web_socket.js
+++ b/webclients/novnc/include/web-socket-js/web_socket.js
@@ -5,7 +5,7 @@
 (function() {
-  if (window.WebSocket) return;
+  if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) return;
  var console = window.console;
  if (!console || !console.log || !console.error) {

--- a/webclients/novnc/include/websock.js
+++ b/webclients/novnc/include/websock.js
 /*
 * Websock: high-performance binary WebSockets
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * Websock is similar to the standard WebSocket object but Websock
@@ -20,6 +20,11 @@
 // Load Flash WebSocket emulator if needed
+// To force WebSocket emulator even when native WebSocket available
+//window.WEB_SOCKET_FORCE_FLASH = true;
+// To enable WebSocket emulator debug:
+//window.WEB_SOCKET_DEBUG=1;
 if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) {
    Websock_native = true;
 } else if (window.MozWebSocket && !window.WEB_SOCKET_FORCE_FLASH) {
@@ -28,9 +33,6 @@ if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) {
 } else {
    /* no builtin WebSocket so load web_socket.js */
-    // To enable debug:
-    // window.WEB_SOCKET_DEBUG=1;
    Websock_native = false;
    (function () {
        function get_INCLUDE_URI() {
@@ -280,6 +282,8 @@ function open(uri) {
        Util.Debug(">> WebSock.onopen");
        if (websocket.protocol) {
            Util.Info("Server chose sub-protocol: " + websocket.protocol);
+        } else {
+            Util.Error("Server select no sub-protocol!: " + websocket.protocol);
        }
        eventHandlers.open();
        Util.Debug("<< WebSock.onopen");

--- a/webclients/novnc/include/webutil.js
+++ b/webclients/novnc/include/webutil.js
 /*
 * noVNC: HTML5 VNC client
- * Copyright (C) 2011 Joel Martin
+ * Copyright (C) 2012 Joel Martin
 * Licensed under LGPL-3 (see LICENSE.txt)
 *
 * See README.md for usage and integration instructions.

--- a/webclients/novnc/vnc.html
+++ b/webclients/novnc/vnc.html
@@ -4,8 +4,9 @@
    <!--
    noVNC example: simple example using default UI
-    Copyright (C) 2011 Joel Martin
+    Copyright (C) 2012 Joel Martin
-    Licensed under LGPL-3 (see LICENSE.txt)
+    noVNC is licensed under the LGPL-3 (see LICENSE.txt)
+    This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
    -->
    <title>noVNC</title>
@@ -140,6 +141,7 @@
                    <li><input id="noVNC_view_only" type="checkbox"> View Only</li>
                    <li><input id="noVNC_connectTimeout" type="input"> Connect Timeout (s)</li>
                    <li><input id="noVNC_path" type="input" value="websockify"> Path</li>
+                    <li><input id="noVNC_repeaterID" type="input" value=""> Repeater ID</li>
                    <hr>
                    <!-- Stylesheet selection dropdown -->
                    <li><label><strong>Style: </strong>

--- a/webclients/novnc/vnc_auto.html
+++ b/webclients/novnc/vnc_auto.html
 <!DOCTYPE html>
 <html>
    <!-- 
-    noVNC Example: Automatically connect on page load.
+    noVNC example: simple example using default UI
-    Copyright (C) 2011 Joel Martin
+    Copyright (C) 2012 Joel Martin
-    Licensed under LGPL-3 (see LICENSE.txt)
+    noVNC is licensed under the LGPL-3 (see LICENSE.txt)
+    This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
    Connect parameters are provided in query string:
        http://example.com/?host=HOST&port=PORT&encrypt=1&true_color=1
@@ -103,6 +104,7 @@
            password = WebUtil.getQueryVar('password', '');
            path = WebUtil.getQueryVar('path', 'websockify');
            if ((!host) || (!port)) {
                updateState('failed',
                    "Must specify host and port in URL");
@@ -112,6 +114,7 @@
            rfb = new RFB({'target':       $D('noVNC_canvas'),
                           'encrypt':      WebUtil.getQueryVar('encrypt',
                                    (window.location.protocol === "https:")),
+                           'repeaterID':   WebUtil.getQueryVar('repeaterID', ''),
                           'true_color':   WebUtil.getQueryVar('true_color', true),
                           'local_cursor': WebUtil.getQueryVar('cursor', true),
                           'shared':       WebUtil.getQueryVar('shared', true),