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Commit 8db09746 authored by Joel Martin's avatar Joel Martin
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New API. Refactor Canvas and RFB objects. 

New API:

To use the RFB object, you now must instantiate it (this allows more
than one instance of it on the same page).

    rfb = new RFB(settings);

The 'settings' variable is a namespace that contains initial default
settings. These can also be set and read using 'rfb.set_FOO()' and
'rfb.get_FOO()' where FOO is the setting name. The current settings
are (and defaults) are:
    - target: the DOM Canvas element to use ('VNC_canvas').
    - encrypt: whether to encrypt the connection (false)
    - true_color: true_color or palette (true)
    - b64encode: base64 encode the WebSockets data (true)
    - local_cursor: use local cursor rendering (true if supported)
    - connectTimeout: milliseconds to wait for connect (2000)
    - updateState: callback when RFB state changes (none)
    - clipboardReceive: callback when clipboard data received (none)

The parameters to the updateState callback have also changed. The
function spec is now updateState(rfb, state, oldstate, msg):
    - rfb: the RFB object that this state change is for.
    - state: the new state
    - oldstate: the previous state
    - msg: a message associate with the state (not always set).

The clipboardReceive spec is clipboardReceive(rfb, text):
    - rfb: the RFB object that this text is from.
    - text: the clipboard text received.

Changes:

- The RFB and Canvas namespaces are now more proper objects. Private
  implementation is no longer exposed and the public API has been made
  explicit. Also, instantiation allows more than one VNC connection
  on the same page (to complete this, DefaultControls will also need
  this same refactoring).

- Added 'none' logging level.

- Removed automatic stylesheet selection workaround in util.js and
  move it to defaultcontrols so that it doesn't interfere with
  intergration.

- Also, some major JSLinting.

- Fix input, canvas, and cursor tests to work with new model.
parent 8171f4d8
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README.md
View file @ 8db09746
......@@ -195,7 +195,7 @@ The client is designed to be easily integrated with existing web
structure and style.
At a minimum you must include the `vnc.js` and `default_controls.js`
scripts and call their load() functions. For example:
scripts and call DefaultControls.load(). For example:
<head>
<script src='include/vnc.js'></script>
......@@ -203,12 +203,13 @@ scripts and call their load() functions. For example:
</head>
<body>
<div id='vnc'>Loading</div>
</body>
<script>
window.onload = function () {
DefaultControls.load('vnc');
RFB.load(); };
}
</script>
</body>
See `vnc.html` and `vnc_auto.html` for examples. The file
`include/plain.css` has a list of stylable elements.
......
include/canvas.js
View file @ 8db09746
......@@ -7,183 +7,142 @@
*/
"use strict";
/*jslint white: false, bitwise: false */
/*global window, $, Util, Base64 */
/*jslint browser: true, white: false, bitwise: false */
/*global window, Util, Base64 */
// Globals defined here
var Canvas;
function Canvas(conf) {
// Everything namespaced inside Canvas
Canvas = {
conf = conf || {}; // Configuration
var that = {}, // Public API interface
prefer_js : false, // make private
force_canvas : false, // make private
cursor_uri : true, // make private
// Pre-declare functions used before definitions (jslint)jslint
setFillColor, fillRect,
true_color : true,
colourMap : [],
// Private Canvas namespace variables
c_forceCanvas = false,
scale : 1,
c_wx : 0,
c_wy : 0,
ctx : null,
c_width = 0,
c_height = 0,
prevStyle : "",
c_prevStyle = "",
focused : true,
keyPress : null,
mouseButton : null,
mouseMove : null,
c_keyPress = null,
c_mouseButton = null,
c_mouseMove = null;
onMouseButton: function(e, down) {
var evt, pos, bmask;
if (! Canvas.focused) {
return true;
}
evt = (e ? e : window.event);
pos = Util.getEventPosition(e, $(Canvas.id), Canvas.scale);
bmask = 1 << evt.button;
//Util.Debug('mouse ' + pos.x + "," + pos.y + " down: " + down + " bmask: " + bmask);
if (Canvas.mouseButton) {
Canvas.mouseButton(pos.x, pos.y, down, bmask);
}
Util.stopEvent(e);
return false;
},
onMouseDown: function (e) {
Canvas.onMouseButton(e, 1);
},
// Capability settings, default can be overridden
Util.conf_default(conf, that, 'prefer_js', null);
Util.conf_default(conf, that, 'cursor_uri', null);
onMouseUp: function (e) {
Canvas.onMouseButton(e, 0);
},
// Configuration settings
Util.conf_default(conf, that, 'target', null);
Util.conf_default(conf, that, 'true_color', true);
Util.conf_default(conf, that, 'focused', true);
Util.conf_default(conf, that, 'colourMap', []);
Util.conf_default(conf, that, 'scale', 1);
onMouseWheel: function (e) {
var evt, pos, bmask, wheelData;
evt = (e ? e : window.event);
pos = Util.getEventPosition(e, $(Canvas.id), Canvas.scale);
wheelData = evt.detail ? evt.detail * -1 : evt.wheelDelta / 40;
if (wheelData > 0) {
bmask = 1 << 3;
} else {
bmask = 1 << 4;
}
//Util.Debug('mouse scroll by ' + wheelData + ':' + pos.x + "," + pos.y);
if (Canvas.mouseButton) {
Canvas.mouseButton(pos.x, pos.y, 1, bmask);
Canvas.mouseButton(pos.x, pos.y, 0, bmask);
}
Util.stopEvent(e);
// Override some specific getters/setters
that.set_prefer_js = function(val) {
if (val && c_forceCanvas) {
Util.Warn("Preferring Javascript to Canvas ops is not supported");
return false;
},
onMouseMove: function (e) {
var evt, pos;
evt = (e ? e : window.event);
pos = Util.getEventPosition(e, $(Canvas.id), Canvas.scale);
//Util.Debug('mouse ' + evt.which + '/' + evt.button + ' up:' + pos.x + "," + pos.y);
if (Canvas.mouseMove) {
Canvas.mouseMove(pos.x, pos.y);
}
},
onKeyDown: function (e) {
//Util.Debug("keydown: " + Canvas.getKeysym(e));
if (! Canvas.focused) {
conf.prefer_js = val;
return true;
}
if (Canvas.keyPress) {
Canvas.keyPress(Canvas.getKeysym(e), 1);
}
Util.stopEvent(e);
return false;
},
};
onKeyUp : function (e) {
//Util.Debug("keyup: " + Canvas.getKeysym(e));
if (! Canvas.focused) {
return true;
}
if (Canvas.keyPress) {
Canvas.keyPress(Canvas.getKeysym(e), 0);
that.get_colourMap = function(idx) {
if (typeof idx === 'undefined') {
return conf.colourMap;
} else {
return conf.colourMap[idx];
}
Util.stopEvent(e);
return false;
},
};
onMouseDisable: function (e) {
var evt, pos;
if (! Canvas.focused) {
return true;
}
evt = (e ? e : window.event);
pos = Util.getPosition($(Canvas.id));
/* Stop propagation if inside canvas area */
if ((evt.clientX >= pos.x) &&
(evt.clientY >= pos.y) &&
(evt.clientX < (pos.x + Canvas.c_wx)) &&
(evt.clientY < (pos.y + Canvas.c_wy))) {
//Util.Debug("mouse event disabled");
Util.stopEvent(e);
return false;
that.set_colourMap = function(val, idx) {
if (typeof idx === 'undefined') {
conf.colourMap = val;
} else {
conf.colourMap[idx] = val;
}
//Util.Debug("mouse event not disabled");
return true;
},
};
// Add some other getters/setters
that.get_width = function() {
return c_width;
};
that.get_height = function() {
return c_height;
};
init: function (id) {
var c, imgTest, tval, i, curDat, curSave;
//
// Private functions
//
// Create the public API interface
function constructor() {
Util.Debug(">> Canvas.init");
Canvas.id = id;
c = $(Canvas.id);
var c, ctx, imgTest, tval, i, curDat, curSave,
has_imageData = false;
if (! conf.target) { throw("target must be set"); }
if (typeof conf.target === 'string') {
conf.target = window.$(conf.target);
}
c = conf.target;
if (! c.getContext) { throw("No getContext method"); }
Canvas.ctx = c.getContext('2d');
if (! c.getContext) { throw("no getContext method"); }
Canvas.clear();
if (! conf.ctx) { conf.ctx = c.getContext('2d'); }
ctx = conf.ctx;
that.clear();
/*
* Determine browser Canvas feature support
* and select fastest rendering methods
*/
tval = 0;
Canvas.has_imageData = false;
try {
imgTest = Canvas.ctx.getImageData(0, 0, 1,1);
imgTest = ctx.getImageData(0, 0, 1,1);
imgTest.data[0] = 123;
imgTest.data[3] = 255;
Canvas.ctx.putImageData(imgTest, 0, 0);
tval = Canvas.ctx.getImageData(0, 0, 1, 1).data[0];
ctx.putImageData(imgTest, 0, 0);
tval = ctx.getImageData(0, 0, 1, 1).data[0];
if (tval === 123) {
Canvas.has_imageData = true;
has_imageData = true;
}
} catch (exc) {}
} catch (exc1) {}
if (Canvas.has_imageData) {
if (has_imageData) {
Util.Info("Canvas supports imageData");
Canvas.force_canvas = false;
if (Canvas.ctx.createImageData) {
c_forceCanvas = false;
if (ctx.createImageData) {
// If it's there, it's faster
Util.Info("Using Canvas createImageData");
Canvas._imageData = Canvas._imageDataCreate;
} else if (Canvas.ctx.getImageData) {
that.imageData = that.imageDataCreate;
} else if (ctx.getImageData) {
Util.Info("Using Canvas getImageData");
Canvas._imageData = Canvas._imageDataGet;
that.imageData = that.imageDataGet;
}
Util.Info("Prefering javascript operations");
Canvas.prefer_js = true;
Canvas._rgbxImage = Canvas._rgbxImageData;
Canvas._cmapImage = Canvas._cmapImageData;
if (conf.prefer_js === null) {
conf.prefer_js = true;
}
that.rgbxImage = that.rgbxImageData;
that.cmapImage = that.cmapImageData;
} else {
Util.Warn("Canvas lacks imageData, using fillRect (slow)");
Canvas.force_canvas = true;
Canvas.prefer_js = false;
Canvas._rgbxImage = Canvas._rgbxImageFill;
Canvas._cmapImage = Canvas._cmapImageFill;
c_forceCanvas = true;
conf.prefer_js = false;
that.rgbxImage = that.rgbxImageFill;
that.cmapImage = that.cmapImageFill;
}
/*
......@@ -191,16 +150,21 @@ init: function (id) {
* scheme
*/
curDat = [];
for (i=0; i < 8 * 8 * 4; i++) {
for (i=0; i < 8 * 8 * 4; i += 1) {
curDat.push(255);
}
try {
curSave = c.style.cursor;
Canvas.changeCursor(curDat, curDat, 2, 2, 8, 8);
that.changeCursor(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 {
Canvas.cursor_uri = false;
if (conf.cursor_uri === null) {
conf.cursor_uri = false;
}
Util.Warn("Data URI scheme cursor not supported");
}
c.style.cursor = curSave;
......@@ -209,68 +173,244 @@ init: function (id) {
conf.cursor_uri = false;
}
Canvas.colourMap = [];
Canvas.prevStyle = "";
Canvas.focused = true;
conf.focused = true;
Util.Debug("<< Canvas.init");
return true;
},
return that ;
}
/* Translate DOM key event to keysym value */
function getKeysym(e) {
var evt, keysym;
evt = (e ? e : window.event);
start: function (keyPress, mouseButton, mouseMove) {
var c;
Util.Debug(">> Canvas.start");
/* Remap modifier and special keys */
switch ( evt.keyCode ) {
case 8 : keysym = 0xFF08; break; // BACKSPACE
case 9 : keysym = 0xFF09; break; // TAB
case 13 : keysym = 0xFF0D; break; // ENTER
case 27 : keysym = 0xFF1B; break; // ESCAPE
case 45 : keysym = 0xFF63; break; // INSERT
case 46 : keysym = 0xFFFF; break; // DELETE
case 36 : keysym = 0xFF50; break; // HOME
case 35 : keysym = 0xFF57; break; // END
case 33 : keysym = 0xFF55; break; // PAGE_UP
case 34 : keysym = 0xFF56; break; // PAGE_DOWN
case 37 : keysym = 0xFF51; break; // LEFT
case 38 : keysym = 0xFF52; break; // UP
case 39 : keysym = 0xFF53; break; // RIGHT
case 40 : keysym = 0xFF54; break; // DOWN
case 112 : keysym = 0xFFBE; break; // F1
case 113 : keysym = 0xFFBF; break; // F2
case 114 : keysym = 0xFFC0; break; // F3
case 115 : keysym = 0xFFC1; break; // F4
case 116 : keysym = 0xFFC2; break; // F5
case 117 : keysym = 0xFFC3; break; // F6
case 118 : keysym = 0xFFC4; break; // F7
case 119 : keysym = 0xFFC5; break; // F8
case 120 : keysym = 0xFFC6; break; // F9
case 121 : keysym = 0xFFC7; break; // F10
case 122 : keysym = 0xFFC8; break; // F11
case 123 : keysym = 0xFFC9; break; // F12
case 16 : keysym = 0xFFE1; break; // SHIFT
case 17 : keysym = 0xFFE3; break; // CONTROL
//case 18 : keysym = 0xFFE7; break; // Left Meta (Mac Option)
case 18 : keysym = 0xFFE9; break; // Left ALT (Mac Command)
default : keysym = evt.keyCode; break;
}
c = $(Canvas.id);
Canvas.keyPress = keyPress || null;
Canvas.mouseButton = mouseButton || null;
Canvas.mouseMove = mouseMove || null;
/* Remap symbols */
switch (keysym) {
case 186 : keysym = 59; break; // ; (IE)
case 187 : keysym = 61; break; // = (IE)
case 188 : keysym = 44; break; // , (Mozilla, IE)
case 109 : // - (Mozilla)
if (Util.Engine.gecko) {
keysym = 45; }
break;
case 189 : keysym = 45; break; // - (IE)
case 190 : keysym = 46; break; // . (Mozilla, IE)
case 191 : keysym = 47; break; // / (Mozilla, IE)
case 192 : keysym = 96; break; // ` (Mozilla, IE)
case 219 : keysym = 91; break; // [ (Mozilla, IE)
case 220 : keysym = 92; break; // \ (Mozilla, IE)
case 221 : keysym = 93; break; // ] (Mozilla, IE)
case 222 : keysym = 39; break; // ' (Mozilla, IE)
}
Util.addEvent(document, 'keydown', Canvas.onKeyDown);
Util.addEvent(document, 'keyup', Canvas.onKeyUp);
Util.addEvent(c, 'mousedown', Canvas.onMouseDown);
Util.addEvent(c, 'mouseup', Canvas.onMouseUp);
Util.addEvent(c, 'mousemove', Canvas.onMouseMove);
Util.addEvent(c, (Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
Canvas.onMouseWheel);
/* Remap shifted and unshifted keys */
if (!!evt.shiftKey) {
switch (keysym) {
case 48 : keysym = 41 ; break; // ) (shifted 0)
case 49 : keysym = 33 ; break; // ! (shifted 1)
case 50 : keysym = 64 ; break; // @ (shifted 2)
case 51 : keysym = 35 ; break; // # (shifted 3)
case 52 : keysym = 36 ; break; // $ (shifted 4)
case 53 : keysym = 37 ; break; // % (shifted 5)
case 54 : keysym = 94 ; break; // ^ (shifted 6)
case 55 : keysym = 38 ; break; // & (shifted 7)
case 56 : keysym = 42 ; break; // * (shifted 8)
case 57 : keysym = 40 ; break; // ( (shifted 9)
/* Work around right and middle click browser behaviors */
Util.addEvent(document, 'click', Canvas.onMouseDisable);
Util.addEvent(document.body, 'contextmenu', Canvas.onMouseDisable);
case 59 : keysym = 58 ; break; // : (shifted `)
case 61 : keysym = 43 ; break; // + (shifted ;)
case 44 : keysym = 60 ; break; // < (shifted ,)
case 45 : keysym = 95 ; break; // _ (shifted -)
case 46 : keysym = 62 ; break; // > (shifted .)
case 47 : keysym = 63 ; break; // ? (shifted /)
case 96 : keysym = 126; break; // ~ (shifted `)
case 91 : keysym = 123; break; // { (shifted [)
case 92 : keysym = 124; break; // | (shifted \)
case 93 : keysym = 125; break; // } (shifted ])
case 39 : keysym = 34 ; break; // " (shifted ')
}
} else if ((keysym >= 65) && (keysym <=90)) {
/* Remap unshifted A-Z */
keysym += 32;
}
Util.Debug("<< Canvas.start");
},
return keysym;
}
clear: function () {
Canvas.resize(640, 20);
Canvas.ctx.clearRect(0, 0, Canvas.c_wx, Canvas.c_wy);
},
function onMouseButton(e, down) {
var evt, pos, bmask;
if (! conf.focused) {
return true;
}
evt = (e ? e : window.event);
pos = Util.getEventPosition(e, conf.target, conf.scale);
bmask = 1 << evt.button;
//Util.Debug('mouse ' + pos.x + "," + pos.y + " down: " + down + " bmask: " + bmask);
if (c_mouseButton) {
c_mouseButton(pos.x, pos.y, down, bmask);
}
Util.stopEvent(e);
return false;
}
resize: function (width, height, true_color) {
var c = $(Canvas.id);
function onMouseDown(e) {
onMouseButton(e, 1);
}
if (typeof true_color !== "undefined") {
Canvas.true_color = true_color;
function onMouseUp(e) {
onMouseButton(e, 0);
}
function onMouseWheel(e) {
var evt, pos, bmask, wheelData;
evt = (e ? e : window.event);
pos = Util.getEventPosition(e, conf.target, conf.scale);
wheelData = evt.detail ? evt.detail * -1 : evt.wheelDelta / 40;
if (wheelData > 0) {
bmask = 1 << 3;
} else {
bmask = 1 << 4;
}
//Util.Debug('mouse scroll by ' + wheelData + ':' + pos.x + "," + pos.y);
if (c_mouseButton) {
c_mouseButton(pos.x, pos.y, 1, bmask);
c_mouseButton(pos.x, pos.y, 0, bmask);
}
Util.stopEvent(e);
return false;
}
c.width = width;
c.height = height;
function onMouseMove(e) {
var evt, pos;
evt = (e ? e : window.event);
pos = Util.getEventPosition(e, conf.target, conf.scale);
//Util.Debug('mouse ' + evt.which + '/' + evt.button + ' up:' + pos.x + "," + pos.y);
if (c_mouseMove) {
c_mouseMove(pos.x, pos.y);
}
}
function onKeyDown(e) {
//Util.Debug("keydown: " + getKeysym(e));
if (! conf.focused) {
return true;
}
if (c_keyPress) {
c_keyPress(getKeysym(e), 1);
}
Util.stopEvent(e);
return false;
}
function onKeyUp(e) {
//Util.Debug("keyup: " + getKeysym(e));
if (! conf.focused) {
return true;
}
if (c_keyPress) {
c_keyPress(getKeysym(e), 0);
}
Util.stopEvent(e);
return false;
}
function onMouseDisable(e) {
var evt, pos;
if (! conf.focused) {
return true;
}
evt = (e ? e : window.event);
pos = Util.getPosition(conf.target);
/* Stop propagation if inside canvas area */
if ((evt.clientX >= pos.x) &&
(evt.clientY >= pos.y) &&
(evt.clientX < (pos.x + c_width)) &&
(evt.clientY < (pos.y + c_height))) {
//Util.Debug("mouse event disabled");
Util.stopEvent(e);
return false;
}
//Util.Debug("mouse event not disabled");
return true;
}
//
// Public API interface functions
//
that.getContext = function () {
return conf.ctx;
};
that.start = function(keyPressFunc, mouseButtonFunc, mouseMoveFunc) {
var c;
Util.Debug(">> Canvas.start");
Canvas.c_wx = c.offsetWidth;
Canvas.c_wy = c.offsetHeight;
c = conf.target;
c_keyPress = keyPressFunc || null;
c_mouseButton = mouseButtonFunc || null;
c_mouseMove = mouseMoveFunc || null;
//Canvas.rescale(Canvas.scale);
},
Util.addEvent(document, 'keydown', onKeyDown);
Util.addEvent(document, 'keyup', onKeyUp);
Util.addEvent(c, 'mousedown', onMouseDown);
Util.addEvent(c, 'mouseup', onMouseUp);
Util.addEvent(c, 'mousemove', onMouseMove);
Util.addEvent(c, (Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
onMouseWheel);
/* Work around right and middle click browser behaviors */
Util.addEvent(document, 'click', onMouseDisable);
Util.addEvent(document.body, 'contextmenu', onMouseDisable);
Util.Debug("<< Canvas.start");
};
rescale: function (factor) {
that.rescale = function(factor) {
var c, tp, x, y,
properties = ['transform', 'WebkitTransform', 'MozTransform', null];
c = $(Canvas.id);
while (tp = properties.shift()) {
if (typeof c.style[tp] != 'undefined') {
c = conf.target;
tp = properties.shift();
while (tp) {
if (typeof c.style[tp] !== 'undefined') {
break;
}
tp = properties.shift();
}
if (tp === null) {
......@@ -278,36 +418,83 @@ rescale: function (factor) {
return;
}
if (Canvas.scale === factor) {
if (conf.scale === factor) {
//Util.Debug("Canvas already scaled to '" + factor + "'");
return;
}
Canvas.scale = factor;
conf.scale = factor;
x = c.width - c.width * factor;
y = c.height - c.height * factor;
c.style[tp] = "scale(" + Canvas.scale + ") translate(-" + x + "px, -" + y + "px)";
},
stop: function () {
var c = $(Canvas.id);
Util.removeEvent(document, 'keydown', Canvas.onKeyDown);
Util.removeEvent(document, 'keyup', Canvas.onKeyUp);
Util.removeEvent(c, 'mousedown', Canvas.onMouseDown);
Util.removeEvent(c, 'mouseup', Canvas.onMouseUp);
Util.removeEvent(c, 'mousemove', Canvas.onMouseMove);
c.style[tp] = "scale(" + conf.scale + ") translate(-" + x + "px, -" + y + "px)";
};
that.resize = function(width, height, true_color) {
var c = conf.target;
if (typeof true_color !== "undefined") {
conf.true_color = true_color;
}
c.width = width;
c.height = height;
c_width = c.offsetWidth;
c_height = c.offsetHeight;
that.rescale(conf.scale);
};
that.clear = function() {
that.resize(640, 20);
conf.ctx.clearRect(0, 0, c_width, c_height);
};
that.stop = function() {
var c = conf.target;
Util.removeEvent(document, 'keydown', onKeyDown);
Util.removeEvent(document, 'keyup', onKeyUp);
Util.removeEvent(c, 'mousedown', onMouseDown);
Util.removeEvent(c, 'mouseup', onMouseUp);
Util.removeEvent(c, 'mousemove', onMouseMove);
Util.removeEvent(c, (Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
Canvas.onMouseWheel);
onMouseWheel);
/* Work around right and middle click browser behaviors */
Util.removeEvent(document, 'click', Canvas.onMouseDisable);
Util.removeEvent(document.body, 'contextmenu', Canvas.onMouseDisable);
Util.removeEvent(document, 'click', onMouseDisable);
Util.removeEvent(document.body, 'contextmenu', onMouseDisable);
// Turn off cursor rendering
if (Canvas.cursor_uri) {
if (conf.cursor_uri) {
c.style.cursor = "default";
}
},
};
setFillColor = function(color) {
var rgb, newStyle;
if (conf.true_color) {
rgb = color;
} else {
rgb = conf.colourMap[color[0]];
}
if (newStyle !== c_prevStyle) {
newStyle = "rgb(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + ")";
conf.ctx.fillStyle = newStyle;
c_prevStyle = newStyle;
}
};
that.setFillColor = setFillColor;
fillRect = function(x, y, width, height, color) {
setFillColor(color);
conf.ctx.fillRect(x, y, width, height);
};
that.fillRect = fillRect;
that.copyImage = function(old_x, old_y, new_x, new_y, width, height) {
conf.ctx.drawImage(conf.target, old_x, old_y, width, height,
new_x, new_y, width, height);
};
/*
* Tile rendering functions optimized for rendering engines.
......@@ -316,16 +503,16 @@ stop: function () {
* faster than direct Canvas fillStyle, fillRect rendering. In
* gecko, Javascript array handling is much slower.
*/
getTile: function(x, y, width, height, color) {
that.getTile = function(x, y, width, height, color) {
var img, data, p, rgb, red, green, blue, j, i;
img = {'x': x, 'y': y, 'width': width, 'height': height,
'data': []};
if (Canvas.prefer_js) {
if (conf.prefer_js) {
data = img.data;
if (Canvas.true_color) {
if (conf.true_color) {
rgb = color;
} else {
rgb = Canvas.colourMap[color[0]];
rgb = conf.colourMap[color[0]];
}
red = rgb[0];
green = rgb[1];
......@@ -340,20 +527,20 @@ getTile: function(x, y, width, height, color) {
}
}
} else {
Canvas.fillRect(x, y, width, height, color);
fillRect(x, y, width, height, color);
}
return img;
},
};
setSubTile: function(img, x, y, w, h, color) {
that.setSubTile = function(img, x, y, w, h, color) {
var data, p, rgb, red, green, blue, width, j, i;
if (Canvas.prefer_js) {
if (conf.prefer_js) {
data = img.data;
width = img.width;
if (Canvas.true_color) {
if (conf.true_color) {
rgb = color;
} else {
rgb = Canvas.colourMap[color[0]];
rgb = conf.colourMap[color[0]];
}
red = rgb[0];
green = rgb[1];
......@@ -368,31 +555,28 @@ setSubTile: function(img, x, y, w, h, color) {
}
}
} else {
Canvas.fillRect(img.x + x, img.y + y, w, h, color);
fillRect(img.x + x, img.y + y, w, h, color);
}
},
};
putTile: function(img) {
if (Canvas.prefer_js) {
Canvas._rgbxImage(img.x, img.y, img.width, img.height, img.data, 0);
that.putTile = function(img) {
if (conf.prefer_js) {
that.rgbxImage(img.x, img.y, img.width, img.height, img.data, 0);
} else {
// No-op, under gecko already done by setSubTile
}
},
};
_imageDataGet: function(width, height) {
return Canvas.ctx.getImageData(0, 0, width, height);
},
_imageDataCreate: function(width, height) {
return Canvas.ctx.createImageData(width, height);
},
_imageDataRaw: function(width, height) {
return {'data': [], 'width': width, 'height': height};
},
that.imageDataGet = function(width, height) {
return conf.ctx.getImageData(0, 0, width, height);
};
that.imageDataCreate = function(width, height) {
return conf.ctx.createImageData(width, height);
};
_rgbxImageData: function(x, y, width, height, arr, offset) {
that.rgbxImageData = function(x, y, width, height, arr, offset) {
var img, i, j, data;
img = Canvas._imageData(width, height);
img = that.imageData(width, height);
data = img.data;
for (i=0, j=offset; i < (width * height * 4); i=i+4, j=j+4) {
data[i + 0] = arr[j + 0];
......@@ -400,27 +584,27 @@ _rgbxImageData: function(x, y, width, height, arr, offset) {
data[i + 2] = arr[j + 2];
data[i + 3] = 255; // Set Alpha
}
Canvas.ctx.putImageData(img, x, y);
},
conf.ctx.putImageData(img, x, y);
};
// really slow fallback if we don't have imageData
_rgbxImageFill: function(x, y, width, height, arr, offset) {
that.rgbxImageFill = function(x, y, width, height, arr, offset) {
var i, j, sx = 0, sy = 0;
for (i=0, j=offset; i < (width * height); i+=1, j+=4) {
Canvas.fillRect(x+sx, y+sy, 1, 1, [arr[j+0], arr[j+1], arr[j+2]]);
fillRect(x+sx, y+sy, 1, 1, [arr[j+0], arr[j+1], arr[j+2]]);
sx += 1;
if ((sx % width) === 0) {
sx = 0;
sy += 1;
}
}
},
};
_cmapImageData: function(x, y, width, height, arr, offset) {
that.cmapImageData = function(x, y, width, height, arr, offset) {
var img, i, j, data, rgb, cmap;
img = Canvas._imageData(width, height);
img = that.imageData(width, height);
data = img.data;
cmap = Canvas.colourMap;
cmap = conf.colourMap;
for (i=0, j=offset; i < (width * height * 4); i+=4, j+=1) {
rgb = cmap[arr[j]];
data[i + 0] = rgb[0];
......@@ -428,168 +612,47 @@ _cmapImageData: function(x, y, width, height, arr, offset) {
data[i + 2] = rgb[2];
data[i + 3] = 255; // Set Alpha
}
Canvas.ctx.putImageData(img, x, y);
},
conf.ctx.putImageData(img, x, y);
};
_cmapImageFill: function(x, y, width, height, arr, offset) {
that.cmapImageFill = function(x, y, width, height, arr, offset) {
var i, j, sx = 0, sy = 0, cmap;
cmap = Canvas.colourMap;
cmap = conf.colourMap;
for (i=0, j=offset; i < (width * height); i+=1, j+=1) {
Canvas.fillRect(x+sx, y+sy, 1, 1, [arr[j]]);
fillRect(x+sx, y+sy, 1, 1, [arr[j]]);
sx += 1;
if ((sx % width) === 0) {
sx = 0;
sy += 1;
}
}
},
};
blitImage: function(x, y, width, height, arr, offset) {
if (Canvas.true_color) {
Canvas._rgbxImage(x, y, width, height, arr, offset);
that.blitImage = function(x, y, width, height, arr, offset) {
if (conf.true_color) {
that.rgbxImage(x, y, width, height, arr, offset);
} else {
Canvas._cmapImage(x, y, width, height, arr, offset);
that.cmapImage(x, y, width, height, arr, offset);
}
},
};
blitStringImage: function(str, x, y) {
that.blitStringImage = function(str, x, y) {
var img = new Image();
img.onload = function () { Canvas.ctx.drawImage(img, x, y); };
img.onload = function () { conf.ctx.drawImage(img, x, y); };
img.src = str;
},
setFillColor: function(color) {
var rgb, newStyle;
if (Canvas.true_color) {
rgb = color;
} else {
rgb = Canvas.colourMap[color[0]];
}
if (newStyle !== Canvas.prevStyle) {
newStyle = "rgb(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + ")";
Canvas.ctx.fillStyle = newStyle;
Canvas.prevStyle = newStyle;
}
},
fillRect: function(x, y, width, height, color) {
Canvas.setFillColor(color);
Canvas.ctx.fillRect(x, y, width, height);
},
copyImage: function(old_x, old_y, new_x, new_y, width, height) {
Canvas.ctx.drawImage($(Canvas.id), old_x, old_y, width, height,
new_x, new_y, width, height);
},
/* Translate DOM key event to keysym value */
getKeysym: function(e) {
var evt, keysym;
evt = (e ? e : window.event);
/* Remap modifier and special keys */
switch ( evt.keyCode ) {
case 8 : keysym = 0xFF08; break; // BACKSPACE
case 9 : keysym = 0xFF09; break; // TAB
case 13 : keysym = 0xFF0D; break; // ENTER
case 27 : keysym = 0xFF1B; break; // ESCAPE
case 45 : keysym = 0xFF63; break; // INSERT
case 46 : keysym = 0xFFFF; break; // DELETE
case 36 : keysym = 0xFF50; break; // HOME
case 35 : keysym = 0xFF57; break; // END
case 33 : keysym = 0xFF55; break; // PAGE_UP
case 34 : keysym = 0xFF56; break; // PAGE_DOWN
case 37 : keysym = 0xFF51; break; // LEFT
case 38 : keysym = 0xFF52; break; // UP
case 39 : keysym = 0xFF53; break; // RIGHT
case 40 : keysym = 0xFF54; break; // DOWN
case 112 : keysym = 0xFFBE; break; // F1
case 113 : keysym = 0xFFBF; break; // F2
case 114 : keysym = 0xFFC0; break; // F3
case 115 : keysym = 0xFFC1; break; // F4
case 116 : keysym = 0xFFC2; break; // F5
case 117 : keysym = 0xFFC3; break; // F6
case 118 : keysym = 0xFFC4; break; // F7
case 119 : keysym = 0xFFC5; break; // F8
case 120 : keysym = 0xFFC6; break; // F9
case 121 : keysym = 0xFFC7; break; // F10
case 122 : keysym = 0xFFC8; break; // F11
case 123 : keysym = 0xFFC9; break; // F12
case 16 : keysym = 0xFFE1; break; // SHIFT
case 17 : keysym = 0xFFE3; break; // CONTROL
//case 18 : keysym = 0xFFE7; break; // Left Meta (Mac Option)
case 18 : keysym = 0xFFE9; break; // Left ALT (Mac Command)
default : keysym = evt.keyCode; break;
}
/* Remap symbols */
switch (keysym) {
case 186 : keysym = 59; break; // ; (IE)
case 187 : keysym = 61; break; // = (IE)
case 188 : keysym = 44; break; // , (Mozilla, IE)
case 109 : // - (Mozilla)
if (Util.Engine.gecko) {
keysym = 45; }
break;
case 189 : keysym = 45; break; // - (IE)
case 190 : keysym = 46; break; // . (Mozilla, IE)
case 191 : keysym = 47; break; // / (Mozilla, IE)
case 192 : keysym = 96; break; // ` (Mozilla, IE)
case 219 : keysym = 91; break; // [ (Mozilla, IE)
case 220 : keysym = 92; break; // \ (Mozilla, IE)
case 221 : keysym = 93; break; // ] (Mozilla, IE)
case 222 : keysym = 39; break; // ' (Mozilla, IE)
}
/* Remap shifted and unshifted keys */
if (!!evt.shiftKey) {
switch (keysym) {
case 48 : keysym = 41 ; break; // ) (shifted 0)
case 49 : keysym = 33 ; break; // ! (shifted 1)
case 50 : keysym = 64 ; break; // @ (shifted 2)
case 51 : keysym = 35 ; break; // # (shifted 3)
case 52 : keysym = 36 ; break; // $ (shifted 4)
case 53 : keysym = 37 ; break; // % (shifted 5)
case 54 : keysym = 94 ; break; // ^ (shifted 6)
case 55 : keysym = 38 ; break; // & (shifted 7)
case 56 : keysym = 42 ; break; // * (shifted 8)
case 57 : keysym = 40 ; break; // ( (shifted 9)
case 59 : keysym = 58 ; break; // : (shifted `)
case 61 : keysym = 43 ; break; // + (shifted ;)
case 44 : keysym = 60 ; break; // < (shifted ,)
case 45 : keysym = 95 ; break; // _ (shifted -)
case 46 : keysym = 62 ; break; // > (shifted .)
case 47 : keysym = 63 ; break; // ? (shifted /)
case 96 : keysym = 126; break; // ~ (shifted `)
case 91 : keysym = 123; break; // { (shifted [)
case 92 : keysym = 124; break; // | (shifted \)
case 93 : keysym = 125; break; // } (shifted ])
case 39 : keysym = 34 ; break; // " (shifted ')
}
} else if ((keysym >= 65) && (keysym <=90)) {
/* Remap unshifted A-Z */
keysym += 32;
}
return keysym;
},
};
isCursor: function() {
return Canvas.cursor_uri;
},
changeCursor: function(pixels, mask, hotx, hoty, w, h) {
that.changeCursor = function(pixels, mask, hotx, hoty, w, h) {
var cur = [], cmap, rgb, IHDRsz, ANDsz, XORsz, url, idx, alpha, x, y;
//Util.Debug(">> changeCursor, x: " + hotx + ", y: " + hoty + ", w: " + w + ", h: " + h);
if (!Canvas.cursor_uri) {
if (conf.cursor_uri === false) {
Util.Warn("changeCursor called but no cursor data URI support");
return;
}
cmap = Canvas.colourMap;
cmap = conf.colourMap;
IHDRsz = 40;
ANDsz = w * h * 4;
XORsz = Math.ceil( (w * h) / 8.0 );
......@@ -623,12 +686,12 @@ changeCursor: function(pixels, mask, hotx, hoty, w, h) {
cur.push32le(0);
// XOR/color data
for (y = h-1; y >= 0; y--) {
for (x = 0; x < w; x++) {
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 (Canvas.true_color) {
if (conf.true_color) {
idx = ((w * y) + x) * 4;
cur.push(pixels[idx + 2]); // blue
cur.push(pixels[idx + 1]); // green
......@@ -646,16 +709,20 @@ changeCursor: function(pixels, mask, hotx, hoty, w, h) {
}
// AND/bitmask data (ignored, just needs to be right size)
for (y = 0; y < h; y++) {
for (x = 0; x < Math.ceil(w / 8); x++) {
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);
$(Canvas.id).style.cursor = "url(" + url + ") " + hotx + " " + hoty + ", default";
conf.target.style.cursor = "url(" + url + ") " + hotx + " " + hoty + ", default";
//Util.Debug("<< changeCursor, cur.length: " + cur.length);
}
};
return constructor(); // Return the public API interface
} // End of Canvas()
include/default_controls.js
View file @ 8db09746
......@@ -6,6 +6,7 @@
* See README.md for usage and integration instructions.
*/
"use strict";
/*jslint white: false */
/*global $, Util, RFB, Canvas, VNC_uri_prefix, Element, Fx */
var DefaultControls = {
......@@ -16,10 +17,6 @@ settingsOpen : false,
load: function(target) {
var html, i, DC = DefaultControls, sheet, sheets, llevels;
/* Handle state updates */
RFB.setUpdateState(DC.updateState);
RFB.setClipboardReceive(DC.clipReceive);
/* Populate the 'target' DOM element with default controls */
if (!target) { target = 'vnc'; }
......@@ -61,7 +58,7 @@ load: function(target) {
html += ' <option value="default">default</option>';
sheet = Util.selectStylesheet();
sheets = Util.getStylesheets();
for (i = 0; i < sheets.length; i++) {
for (i = 0; i < sheets.length; i += 1) {
html += '<option value="' + sheets[i].title + '">' + sheets[i].title + '</option>';
}
html += ' </select> Style</li>';
......@@ -69,7 +66,7 @@ load: function(target) {
// Logging selection dropdown
html += ' <li><select id="VNC_logging" name="vncLogging">';
llevels = ['error', 'warn', 'info', 'debug'];
for (i = 0; i < llevels.length; i++) {
for (i = 0; i < llevels.length; i += 1) {
html += '<option value="' + llevels[i] + '">' + llevels[i] + '</option>';
}
html += ' </select> Logging</li>';
......@@ -107,6 +104,8 @@ load: function(target) {
DC.initSetting('logging', 'warn');
Util.init_logging(DC.getSetting('logging'));
DC.initSetting('stylesheet', 'default');
Util.selectStylesheet(null); // call twice to get around webkit bug
Util.selectStylesheet(DC.getSetting('stylesheet'));
/* Populate the controls if defaults are provided in the URL */
......@@ -118,12 +117,19 @@ load: function(target) {
DC.initSetting('true_color', true);
DC.initSetting('cursor', true);
$('VNC_screen').onmousemove = function () {
DC.rfb = RFB({'target': 'VNC_canvas',
'updateState': DC.updateState,
'clipboardReceive': DC.clipReceive});
DC.rfb.init();
// Unfocus clipboard when over the VNC area
if (! Canvas.focused) {
$('VNC_screen').onmousemove = function () {
var canvas = DC.rfb.get_canvas();
if ((! canvas) || (! canvas.get_focused())) {
$('VNC_clipboard_text').blur();
}
};
},
// Read form control compatible setting from cookie
......@@ -154,7 +160,7 @@ updateSetting: function(name, value) {
if (ctrl.type === 'checkbox') {
ctrl.checked = value;
} else if (typeof ctrl.options !== 'undefined') {
for (i = 0; i < ctrl.options.length; i++) {
for (i = 0; i < ctrl.options.length; i += 1) {
if (ctrl.options[i].value === value) {
ctrl.selectedIndex = i;
break;
......@@ -176,7 +182,7 @@ saveSetting: function(name) {
val = ctrl.value;
}
Util.createCookie(name, val);
Util.Debug("Setting saved '" + name + "=" + val + "'");
//Util.Debug("Setting saved '" + name + "=" + val + "'");
return val;
},
......@@ -190,7 +196,7 @@ initSetting: function(name, defVal) {
val = Util.readCookie(name, defVal);
}
DefaultControls.updateSetting(name, val);
Util.Debug("Setting '" + name + "' initialized to '" + val + "'");
//Util.Debug("Setting '" + name + "' initialized to '" + val + "'");
return val;
},
......@@ -208,7 +214,7 @@ clickSettingsMenu: function() {
DC.updateSetting('encrypt');
DC.updateSetting('base64');
DC.updateSetting('true_color');
if (Canvas.isCursor()) {
if (DC.rfb.get_canvas().get_cursor_uri()) {
DC.updateSetting('cursor');
} else {
DC.updateSetting('cursor', false);
......@@ -235,10 +241,11 @@ closeSettingsMenu: function() {
// Disable/enable controls depending on connection state
settingsDisabled: function(disabled) {
var DC = DefaultControls;
$('VNC_encrypt').disabled = disabled;
$('VNC_base64').disabled = disabled;
$('VNC_true_color').disabled = disabled;
if (Canvas.isCursor()) {
if (DC.rfb && DC.rfb.get_canvas().get_cursor_uri()) {
$('VNC_cursor').disabled = disabled;
} else {
DefaultControls.updateSetting('cursor', false);
......@@ -248,12 +255,12 @@ settingsDisabled: function(disabled) {
// Save/apply settings when 'Apply' button is pressed
settingsApply: function() {
Util.Debug(">> settingsApply");
//Util.Debug(">> settingsApply");
var DC = DefaultControls;
DC.saveSetting('encrypt');
DC.saveSetting('base64');
DC.saveSetting('true_color');
if (Canvas.isCursor()) {
if (DC.rfb.get_canvas().get_cursor_uri()) {
DC.saveSetting('cursor');
}
DC.saveSetting('stylesheet');
......@@ -263,21 +270,21 @@ settingsApply: function() {
Util.selectStylesheet(DC.getSetting('stylesheet'));
Util.init_logging(DC.getSetting('logging'));
Util.Debug("<< settingsApply");
//Util.Debug("<< settingsApply");
},
setPassword: function() {
RFB.sendPassword($('VNC_password').value);
DefaultControls.rfb.sendPassword($('VNC_password').value);
return false;
},
sendCtrlAltDel: function() {
RFB.sendCtrlAltDel();
DefaultControls.rfb.sendCtrlAltDel();
},
updateState: function(state, msg) {
updateState: function(rfb, state, oldstate, msg) {
var s, sb, c, cad, klass;
s = $('VNC_status');
sb = $('VNC_status_bar');
......@@ -334,6 +341,13 @@ updateState: function(state, msg) {
},
clipReceive: function(rfb, text) {
Util.Debug(">> DefaultControls.clipReceive: " + text.substr(0,40) + "...");
$('VNC_clipboard_text').value = text;
Util.Debug("<< DefaultControls.clipReceive");
},
connect: function() {
var host, port, password, DC = DefaultControls;
......@@ -346,43 +360,37 @@ connect: function() {
throw("Must set host and port");
}
RFB.setEncrypt(DC.getSetting('encrypt'));
RFB.setBase64(DC.getSetting('base64'));
RFB.setTrueColor(DC.getSetting('true_color'));
RFB.setCursor(DC.getSetting('cursor'));
DC.rfb.set_encrypt(DC.getSetting('encrypt'));
DC.rfb.set_b64encode(DC.getSetting('base64'));
DC.rfb.set_true_color(DC.getSetting('true_color'));
DC.rfb.set_local_cursor(DC.getSetting('cursor'));
RFB.connect(host, port, password);
DC.rfb.connect(host, port, password);
},
disconnect: function() {
DefaultControls.closeSettingsMenu();
RFB.disconnect();
DefaultControls.rfb.disconnect();
},
canvasBlur: function() {
Canvas.focused = false;
DefaultControls.rfb.get_canvas().set_focused(false);
},
canvasFocus: function() {
Canvas.focused = true;
DefaultControls.rfb.get_canvas().set_focused(true);
},
clipClear: function() {
$('VNC_clipboard_text').value = "";
RFB.clipboardPasteFrom("");
},
clipReceive: function(text) {
Util.Debug(">> DefaultControls.clipReceive: " + text.substr(0,40) + "...");
$('VNC_clipboard_text').value = text;
Util.Debug("<< DefaultControls.clipReceive");
DefaultControls.rfb.clipboardPasteFrom("");
},
clipSend: function() {
var text = $('VNC_clipboard_text').value;
Util.Debug(">> DefaultControls.clipSend: " + text.substr(0,40) + "...");
RFB.clipboardPasteFrom(text);
DefaultControls.rfb.clipboardPasteFrom(text);
Util.Debug("<< DefaultControls.clipSend");
}
......
include/rfb.js
View file @ 8db09746
......@@ -7,205 +7,71 @@
*/
"use strict";
/*jslint white: false, nomen: false, browser: true, bitwise: false */
/*jslint white: false, browser: true, bitwise: false */
/*global window, WebSocket, Util, Canvas, VNC_native_ws, Base64, DES */
// Globals defined here
var RFB;
/*
* RFB namespace
*/
RFB = {
/*
* External interface variables and methods
*/
host : '',
port : 5900,
password : '',
encrypt : true,
true_color : false,
b64encode : true, // false means UTF-8 on the wire
local_cursor : true,
connectTimeout : 2000, // time to wait for connection
// In preference order
encodings : [
['COPYRECT', 0x01, 'display_copy_rect'],
['TIGHT_PNG', -260, 'display_tight_png'],
['HEXTILE', 0x05, 'display_hextile'],
['RRE', 0x02, 'display_rre'],
['RAW', 0x00, 'display_raw'],
['DesktopSize', -223, 'set_desktopsize'],
['Cursor', -239, 'set_cursor'],
// Psuedo-encoding settings
['JPEG_quality_lo', -32, 'set_jpeg_quality'],
// ['JPEG_quality_hi', -23, 'set_jpeg_quality'],
['compress_lo', -255, 'set_compress_level']
// ['compress_hi', -247, 'set_compress_level']
],
setUpdateState: function(externalUpdateState) {
RFB.externalUpdateState = externalUpdateState;
},
setClipboardReceive: function(clipReceive) {
RFB.clipboardCopyTo = clipReceive;
},
setCanvasID: function(canvasID) {
RFB.canvasID = canvasID;
},
setEncrypt: function(encrypt) {
if ((!encrypt) || (encrypt in {'0':1, 'no':1, 'false':1})) {
RFB.encrypt = false;
} else {
RFB.encrypt = true;
}
},
setBase64: function(b64) {
if ((!b64) || (b64 in {'0':1, 'no':1, 'false':1})) {
RFB.b64encode = false;
} else {
RFB.b64encode = true;
}
Util.Debug("Set b64encode to: " + RFB.b64encode);
},
setTrueColor: function(trueColor) {
if ((!trueColor) || (trueColor in {'0':1, 'no':1, 'false':1})) {
RFB.true_color = false;
} else {
RFB.true_color = true;
}
},
setCursor: function(cursor) {
if ((!cursor) || (cursor in {'0':1, 'no':1, 'false':1})) {
RFB.local_cursor = false;
} else {
if (Canvas.isCursor()) {
RFB.local_cursor = true;
} else {
Util.Warn("Browser does not support local cursor");
}
}
},
sendPassword: function(passwd) {
RFB.password = passwd;
RFB.state = "Authentication";
setTimeout(RFB.init_msg, 1);
},
sendCtrlAltDel: function() {
if (RFB.state !== "normal") { return false; }
Util.Info("Sending Ctrl-Alt-Del");
var arr = [];
arr = arr.concat(RFB.keyEvent(0xFFE3, 1)); // Control
arr = arr.concat(RFB.keyEvent(0xFFE9, 1)); // Alt
arr = arr.concat(RFB.keyEvent(0xFFFF, 1)); // Delete
arr = arr.concat(RFB.keyEvent(0xFFFF, 0)); // Delete
arr = arr.concat(RFB.keyEvent(0xFFE9, 0)); // Alt
arr = arr.concat(RFB.keyEvent(0xFFE3, 0)); // Control
arr = arr.concat(RFB.fbUpdateRequest(1));
RFB.send_array(arr);
},
load: function () {
var i;
//Util.Debug(">> load");
/* Load web-socket-js if no builtin WebSocket support */
if (VNC_native_ws) {
Util.Info("Using native WebSockets");
RFB.updateState('loaded', 'noVNC ready (using native WebSockets)');
} else {
Util.Warn("Using web-socket-js flash bridge");
if ((! Util.Flash) ||
(Util.Flash.version < 9)) {
RFB.updateState('fatal', "WebSockets or Adobe Flash is required");
} else if (document.location.href.substr(0, 7) === "file://") {
RFB.updateState('fatal',
"'file://' URL is incompatible with Adobe Flash");
} else {
RFB.updateState('loaded', 'noVNC ready (using Flash WebSockets emulation)');
}
}
function RFB(conf) {
// Initialize canvas/fxcanvas
try {
Canvas.init(RFB.canvasID);
} catch (exc) {
RFB.updateState('fatal', "No working Canvas");
}
conf = conf || {}; // Configuration
var that = {}, // Public API interface
// Populate encoding lookup tables
RFB.encHandlers = {};
RFB.encNames = {};
for (i=0; i < RFB.encodings.length; i+=1) {
RFB.encHandlers[RFB.encodings[i][1]] = RFB[RFB.encodings[i][2]];
RFB.encNames[RFB.encodings[i][1]] = RFB.encodings[i][0];
}
//Util.Debug("<< load");
},
// Pre-declare private functions used before definitions (jslint)
init_vars, updateState, init_msg, normal_msg, recv_message,
framebufferUpdate, show_timings,
connect: function (host, port, password) {
//Util.Debug(">> connect");
pixelFormat, clientEncodings, fbUpdateRequest,
keyEvent, pointerEvent, clientCutText,
RFB.host = host;
RFB.port = port;
RFB.password = (password !== undefined) ? password : "";
extract_data_uri, scan_tight_imgs,
if ((!RFB.host) || (!RFB.port)) {
RFB.updateState('failed', "Must set host and port");
return;
}
send_array, checkEvents, // Overridable for testing
RFB.updateState('connect');
//Util.Debug("<< connect");
},
//
// Private RFB namespace variables
//
rfb_host = '',
rfb_port = 5900,
rfb_password = '',
disconnect: function () {
//Util.Debug(">> disconnect");
RFB.updateState('disconnected', 'Disconnected');
//Util.Debug("<< disconnect");
},
rfb_state = 'disconnected',
rfb_version = 0,
rfb_max_version= 3.8,
rfb_auth_scheme= '',
rfb_shared = 1,
clipboardPasteFrom: function (text) {
if (RFB.state !== "normal") { return; }
//Util.Debug(">> clipboardPasteFrom: " + text.substr(0,40) + "...");
RFB.send_array(RFB.clientCutText(text));
//Util.Debug("<< clipboardPasteFrom");
},
// In preference order
encodings = [
['COPYRECT', 0x01 ],
['TIGHT_PNG', -260 ],
['HEXTILE', 0x05 ],
['RRE', 0x02 ],
['RAW', 0x00 ],
['DesktopSize', -223 ],
['Cursor', -239 ],
/*
* Private variables and methods
*/
// Psuedo-encoding settings
['JPEG_quality_lo', -32 ],
//['JPEG_quality_hi', -23 ],
['compress_lo', -255 ]
//['compress_hi', -247 ]
],
ws : null, // Web Socket object
sendID : null,
scanID : null, // TIGHT_PNG render image scanner
encHandlers = {},
encNames = {},
// Receive and send queues
RQ : [], // Receive Queue
SQ : "", // Send Queue
ws = null, // Web Socket object
canvas = null, // Canvas object
sendID = null, // Send Queue check timer
encHandlers : {},
encNames : {},
// Receive and send queues
RQ = [], // Receive Queue
SQ = "", // Send Queue
// Frame buffer update state
FBU : {
// Frame buffer update state
FBU = {
rects : 0,
subrects : 0, // RRE and HEXTILE
lines : 0, // RAW
......@@ -219,31 +85,22 @@ FBU : {
subencoding : -1,
background : null,
imgs : [] // TIGHT_PNG image queue
},
fb_Bpp : 4,
fb_depth : 3,
max_version : 3.8,
version : 0,
auth_scheme : '',
state : 'disconnected',
cuttext : 'none', // ServerCutText wait state
ct_length : 0,
shared : 1,
check_rate : 217,
scan_imgs_rate : 100,
req_rate : 1413,
last_req : 0,
canvasID : 'VNC_canvas',
fb_width : 0,
fb_height : 0,
fb_name : "",
rre_chunk : 100,
timing : {
},
fb_Bpp = 4,
fb_depth = 3,
fb_width = 0,
fb_height = 0,
fb_name = "",
cuttext = 'none', // ServerCutText wait state
cuttext_length = 0,
scan_imgs_rate = 100,
last_req_time = 0,
rre_chunk_sz = 100,
timing = {
last_fbu : 0,
fbu_total : 0,
fbu_total_cnt : 0,
......@@ -261,1368 +118,1539 @@ timing : {
h_fbus : 0,
h_bytes : 0,
h_pixels : 0
},
},
/* Mouse state */
mouse_buttonmask : 0,
mouse_arr : [],
test_mode = false,
/*
* Server message handlers
*/
/* Mouse state */
mouse_buttonMask = 0,
mouse_arr = [];
/* RFB/VNC initialisation */
init_msg: function () {
//Util.Debug(">> init_msg [RFB.state '" + RFB.state + "']");
var RQ = RFB.RQ, strlen, reason, reason_len, sversion, cversion,
i, types, num_types, challenge, response, bpp, depth,
big_endian, true_color, name_length;
//
// Configuration settings
//
//Util.Debug("RQ (" + RQ.length + ") " + RQ);
switch (RFB.state) {
// VNC viewport rendering Canvas
Util.conf_default(conf, that, 'target', 'VNC_canvas');
case 'ProtocolVersion' :
if (RQ.length < 12) {
RFB.updateState('failed',
"Disconnected: incomplete protocol version");
return;
}
sversion = RQ.shiftStr(12).substr(4,7);
Util.Info("Server ProtocolVersion: " + sversion);
switch (sversion) {
case "003.003": RFB.version = 3.3; break;
case "003.007": RFB.version = 3.7; break;
case "003.008": RFB.version = 3.8; break;
default:
RFB.updateState('failed',
"Invalid server version " + sversion);
return;
Util.conf_default(conf, that, 'encrypt', false, true);
Util.conf_default(conf, that, 'true_color', true, true);
// false means UTF-8 on the wire
Util.conf_default(conf, that, 'b64encode', true, true);
Util.conf_default(conf, that, 'local_cursor', true, true);
// time to wait for connection
Util.conf_default(conf, that, 'connectTimeout', 2000);
// frequency to check for send/receive
Util.conf_default(conf, that, 'check_rate', 217);
// frequency to send frameBufferUpdate requests
Util.conf_default(conf, that, 'fbu_req_rate', 1413);
// state update callback
Util.conf_default(conf, that, 'updateState', function () {
Util.Debug(">> externalUpdateState stub"); });
// clipboard contents received callback
Util.conf_default(conf, that, 'clipboardReceive', function () {
Util.Debug(">> clipboardReceive stub"); });
// Override/add some specific getters/setters
that.set_local_cursor = function(cursor) {
if ((!cursor) || (cursor in {'0':1, 'no':1, 'false':1})) {
conf.local_cursor = false;
} else {
if (canvas.get_cursor_uri()) {
conf.local_cursor = true;
} else {
Util.Warn("Browser does not support local cursor");
}
if (RFB.version > RFB.max_version) {
RFB.version = RFB.max_version;
}
};
RFB.sendID = setInterval(function() {
/*
* Send updates either at a rate of one update every 50ms,
* or whatever slower rate the network can handle
*/
if (RFB.ws.bufferedAmount === 0) {
if (RFB.SQ) {
RFB.ws.send(RFB.SQ);
RFB.SQ = "";
that.get_canvas = function() {
return canvas;
};
//
// Private functions
//
//
// Setup routines
//
// Create the public API interface
function constructor() {
var i;
//Util.Debug(">> init");
// Create lookup tables based encoding number
for (i=0; i < encodings.length; i+=1) {
encHandlers[encodings[i][1]] = encHandlers[encodings[i][0]];
encNames[encodings[i][1]] = encodings[i][0];
}
} else {
Util.Debug("Delaying send");
// Initialize canvas
try {
canvas = new Canvas({'target': conf.target});
} catch (exc) {
Util.Error("Canvas exception: " + exc);
updateState('fatal', "No working Canvas");
}
}, 50);
cversion = "00" + parseInt(RFB.version,10) +
".00" + ((RFB.version * 10) % 10);
RFB.send_string("RFB " + cversion + "\n");
RFB.updateState('Security', "Sent ProtocolVersion: " + sversion);
break;
//Util.Debug("<< init");
return that; // Return the public API interface
}
case 'Security' :
if (RFB.version >= 3.7) {
num_types = RQ.shift8();
if (num_types === 0) {
strlen = RQ.shift32();
reason = RQ.shiftStr(strlen);
RFB.updateState('failed',
"Disconnected: security failure: " + reason);
return;
}
RFB.auth_scheme = 0;
types = RQ.shiftBytes(num_types);
for (i=0; i < types.length; i+=1) {
if ((types[i] > RFB.auth_scheme) && (types[i] < 3)) {
RFB.auth_scheme = types[i];
function init_ws() {
//Util.Debug(">> init_ws");
var uri = "", vars = [];
if (conf.encrypt) {
uri = "wss://";
} else {
uri = "ws://";
}
uri += rfb_host + ":" + rfb_port + "/";
if (conf.b64encode) {
vars.push("b64encode");
}
if (RFB.auth_scheme === 0) {
RFB.updateState('failed',
"Disconnected: unsupported security types: " + types);
return;
if (vars.length > 0) {
uri += "?" + vars.join("&");
}
Util.Info("connecting to " + uri);
ws = new WebSocket(uri);
RFB.send_array([RFB.auth_scheme]);
ws.onmessage = recv_message;
ws.onopen = function(e) {
Util.Debug(">> WebSocket.onopen");
if (rfb_state === "connect") {
updateState('ProtocolVersion', "Starting VNC handshake");
} else {
if (RQ.length < 4) {
RFB.updateState('failed', "Invalid security frame");
return;
updateState('failed', "Got unexpected WebSockets connection");
}
RFB.auth_scheme = RQ.shift32();
Util.Debug("<< WebSocket.onopen");
};
ws.onclose = function(e) {
Util.Debug(">> WebSocket.onclose");
if (rfb_state === 'normal') {
updateState('failed', 'Server disconnected');
} else if (rfb_state === 'ProtocolVersion') {
updateState('failed', 'Failed to connect to server');
} else {
updateState('disconnected', 'VNC disconnected');
}
RFB.updateState('Authentication',
"Authenticating using scheme: " + RFB.auth_scheme);
// Fall through
Util.Debug("<< WebSocket.onclose");
};
ws.onerror = function(e) {
Util.Debug(">> WebSocket.onerror");
updateState('failed', "WebSocket error");
Util.Debug("<< WebSocket.onerror");
};
case 'Authentication' :
//Util.Debug("Security auth scheme: " + RFB.auth_scheme);
switch (RFB.auth_scheme) {
case 0: // connection failed
if (RQ.length < 4) {
//Util.Debug(" waiting for auth reason bytes");
return;
}
strlen = RQ.shift32();
reason = RQ.shiftStr(strlen);
RFB.updateState('failed',
"Disconnected: auth failure: " + reason);
return;
case 1: // no authentication
// RFB.send_array([RFB.shared]); // ClientInitialisation
RFB.updateState('SecurityResult');
break;
case 2: // VNC authentication
if (RFB.password.length === 0) {
RFB.updateState('password', "Password Required");
return;
setTimeout(function () {
if (ws.readyState === WebSocket.CONNECTING) {
updateState('failed', "Connect timeout");
}
if (RQ.length < 16) {
//Util.Debug(" waiting for auth challenge bytes");
}, conf.connectTimeout);
//Util.Debug("<< init_ws");
}
init_vars = function() {
/* Reset state */
cuttext = 'none';
cuttext_length = 0;
RQ = [];
SQ = "";
FBU.rects = 0;
FBU.subrects = 0; // RRE and HEXTILE
FBU.lines = 0; // RAW
FBU.tiles = 0; // HEXTILE
FBU.imgs = []; // TIGHT_PNG image queue
mouse_buttonMask = 0;
mouse_arr = [];
timing.history_start = 0;
timing.history = [];
timing.h_fbus = 0;
timing.h_rects = 0;
timing.h_bytes = 0;
timing.h_pixels = 0;
};
//
// Utility routines
//
/*
* Running states:
* disconnected - idle state
* normal - connected
*
* Page states:
* loaded - page load, equivalent to disconnected
* connect - starting initialization
* password - waiting for password
* failed - abnormal transition to disconnected
* fatal - failed to load page, or fatal error
*
* VNC initialization states:
* ProtocolVersion
* Security
* Authentication
* SecurityResult
* ServerInitialization
*/
updateState = function(state, statusMsg) {
var func, cmsg, oldstate = rfb_state;
if (state === oldstate) {
/* Already here, ignore */
Util.Debug("Already in state '" + state + "', ignoring.");
return;
}
challenge = RQ.shiftBytes(16);
//Util.Debug("Password: " + RFB.password);
//Util.Debug("Challenge: " + challenge +
// " (" + challenge.length + ")");
response = RFB.DES(RFB.password, challenge);
//Util.Debug("Response: " + response +
// " (" + response.length + ")");
//Util.Debug("Sending DES encrypted auth response");
RFB.send_array(response);
RFB.updateState('SecurityResult');
break;
default:
RFB.updateState('failed',
"Disconnected: unsupported auth scheme: " +
RFB.auth_scheme);
return;
if (oldstate === 'fatal') {
Util.Error("Fatal error, cannot continue");
}
break;
case 'SecurityResult' :
if (RQ.length < 4) {
RFB.updateState('failed', "Invalid VNC auth response");
return;
if ((state === 'failed') || (state === 'fatal')) {
func = Util.Error;
} else {
func = Util.Warn;
}
switch (RQ.shift32()) {
case 0: // OK
RFB.updateState('ServerInitialisation', "Authentication OK");
break;
case 1: // failed
if (RFB.version >= 3.8) {
reason_len = RQ.shift32();
reason = RQ.shiftStr(reason_len);
RFB.updateState('failed', reason);
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.
rfb_state = 'failed';
} else {
RFB.updateState('failed', "Authentication failed");
rfb_state = state;
}
return;
case 2: // too-many
RFB.updateState('failed',
"Disconnected: too many auth attempts");
return;
switch (state) {
case 'loaded':
case 'disconnected':
if (sendID) {
clearInterval(sendID);
sendID = null;
}
RFB.send_array([RFB.shared]); // ClientInitialisation
break;
case 'ServerInitialisation' :
if (RQ.length < 24) {
RFB.updateState('failed', "Invalid server initialisation");
return;
if (ws) {
if (ws.readyState === WebSocket.OPEN) {
ws.close();
}
ws.onmessage = function (e) { return; };
}
/* Screen size */
RFB.fb_width = RQ.shift16();
RFB.fb_height = RQ.shift16();
if (canvas && canvas.getContext()) {
canvas.stop();
if (! /__debug__$/i.test(document.location.href)) {
canvas.clear();
}
}
/* PIXEL_FORMAT */
bpp = RQ.shift8();
depth = RQ.shift8();
big_endian = RQ.shift8();
true_color = RQ.shift8();
show_timings();
Util.Info("Screen: " + RFB.fb_width + "x" + RFB.fb_height +
", bpp: " + bpp + ", depth: " + depth +
", big_endian: " + big_endian +
", true_color: " + true_color);
break;
/* Connection name/title */
RQ.shiftStr(12);
name_length = RQ.shift32();
RFB.fb_name = RQ.shiftStr(name_length);
Canvas.resize(RFB.fb_width, RFB.fb_height, RFB.true_color);
Canvas.start(RFB.keyPress, RFB.mouseButton, RFB.mouseMove);
case 'connect':
init_vars();
if (RFB.true_color) {
RFB.fb_Bpp = 4;
RFB.fb_depth = 3;
} else {
RFB.fb_Bpp = 1;
RFB.fb_depth = 1;
if ((ws) && (ws.readyState === WebSocket.OPEN)) {
ws.close();
}
init_ws(); // onopen transitions to 'ProtocolVersion'
response = RFB.pixelFormat();
response = response.concat(RFB.clientEncodings());
response = response.concat(RFB.fbUpdateRequest(0));
RFB.timing.fbu_rt_start = (new Date()).getTime();
RFB.send_array(response);
break;
/* Start pushing/polling */
setTimeout(RFB.checkEvents, RFB.check_rate);
setTimeout(RFB.scan_tight_imgs, RFB.scan_imgs_rate);
RFB.timing.history_start = (new Date()).getTime();
setTimeout(RFB.update_timings, 1000);
if (RFB.encrypt) {
RFB.updateState('normal', "Connected (encrypted) to: " + RFB.fb_name);
} else {
RFB.updateState('normal', "Connected (unencrypted) to: " + RFB.fb_name);
case 'password':
// Ignore password state by default
break;
case 'normal':
if ((oldstate === 'disconnected') || (oldstate === 'failed')) {
Util.Error("Invalid transition from 'disconnected' or 'failed' to 'normal'");
}
break;
case 'failed':
if (oldstate === 'disconnected') {
Util.Error("Invalid transition from 'disconnected' to 'failed'");
}
if (oldstate === 'normal') {
Util.Error("Error while connected.");
}
if (oldstate === 'init') {
Util.Error("Error while initializing.");
}
//Util.Debug("<< init_msg");
},
if ((ws) && (ws.readyState === WebSocket.OPEN)) {
ws.close();
}
// Make sure we transition to disconnected
setTimeout(function() { updateState('disconnected'); }, 50);
/* Normal RFB/VNC server messages */
normal_msg: function () {
//Util.Debug(">> normal_msg");
break;
var RQ = RFB.RQ, ret = true, msg_type,
c, first_colour, num_colours, red, green, blue;
//Util.Debug(">> msg RQ.slice(0,10): " + RQ.slice(0,20));
//Util.Debug(">> msg RQ.slice(-10,-1): " + RQ.slice(RQ.length-10,RQ.length));
if (RFB.FBU.rects > 0) {
msg_type = 0;
} else if (RFB.cuttext !== 'none') {
msg_type = 3;
default:
// Invalid state transition
}
if ((oldstate === 'failed') && (state === 'disconnected')) {
// Leave the failed message
conf.updateState(that, state, oldstate);
} else {
msg_type = RQ.shift8();
conf.updateState(that, state, oldstate, statusMsg);
}
switch (msg_type) {
case 0: // FramebufferUpdate
ret = RFB.framebufferUpdate(); // false means need more data
break;
case 1: // SetColourMapEntries
Util.Debug("SetColourMapEntries");
RQ.shift8(); // Padding
first_colour = RQ.shift16(); // First colour
num_colours = RQ.shift16();
for (c=0; c < num_colours; c+=1) {
red = RQ.shift16();
//Util.Debug("red before: " + red);
red = parseInt(red / 256, 10);
//Util.Debug("red after: " + red);
green = parseInt(RQ.shift16() / 256, 10);
blue = parseInt(RQ.shift16() / 256, 10);
Canvas.colourMap[first_colour + c] = [red, green, blue];
};
function encode_message(arr) {
if (conf.b64encode) {
/* base64 encode */
SQ = SQ + Base64.encode(arr);
} else {
/* UTF-8 encode. 0 -> 256 to avoid WebSockets framing */
SQ = SQ + arr.map(function (num) {
if (num === 0) {
return String.fromCharCode(256);
} else {
return String.fromCharCode(num);
}
Util.Info("Registered " + num_colours + " colourMap entries");
//Util.Debug("colourMap: " + Canvas.colourMap);
break;
case 2: // Bell
Util.Warn("Bell (unsupported)");
break;
case 3: // ServerCutText
Util.Debug("ServerCutText");
Util.Debug("RQ:" + RQ.slice(0,20));
if (RFB.cuttext === 'none') {
RFB.cuttext = 'header';
} ).join('');
}
if (RFB.cuttext === 'header') {
if (RQ.length < 7) {
//Util.Debug("waiting for ServerCutText header");
return false;
}
function decode_message(data) {
var i, length;
//Util.Debug(">> decode_message: " + data);
if (conf.b64encode) {
/* base64 decode */
RQ = RQ.concat(Base64.decode(data, 0));
} else {
/* UTF-8 decode. 256 -> 0 to WebSockets framing */
length = data.length;
for (i=0; i < length; i += 1) {
RQ.push(data.charCodeAt(i) % 256);
}
RQ.shiftBytes(3); // Padding
RFB.ct_length = RQ.shift32();
}
RFB.cuttext = 'bytes';
if (RQ.length < RFB.ct_length) {
//Util.Debug("waiting for ServerCutText bytes");
return false;
//Util.Debug(">> decode_message, RQ: " + RQ);
}
function handle_message() {
//Util.Debug("RQ.slice(0,20): " + RQ.slice(0,20) + " (" + RQ.length + ")");
if (RQ.length == 0) {
Util.Warn("handle_message called on empty receive queue");
return;
}
switch (rfb_state) {
case 'disconnected':
Util.Error("Got data while disconnected");
break;
case 'failed':
Util.Warn("Giving up!");
that.disconnect();
break;
case 'normal':
if (normal_msg() && RQ.length > 0) {
// true means we can continue processing
Util.Debug("More data to process");
// Give other events a chance to run
setTimeout(handle_message, 10);
}
RFB.clipboardCopyTo(RQ.shiftStr(RFB.ct_length));
RFB.cuttext = 'none';
break;
default:
RFB.updateState('failed',
"Disconnected: illegal server message type " + msg_type);
Util.Debug("RQ.slice(0,30):" + RQ.slice(0,30));
init_msg();
break;
}
//Util.Debug("<< normal_msg");
return ret;
},
}
framebufferUpdate: function() {
var RQ = RFB.RQ, FBU = RFB.FBU, timing = RFB.timing,
now, fbu_rt_diff, last_bytes, last_rects,
ret = true;
recv_message = function(e) {
//Util.Debug(">> recv_message");
if (FBU.rects === 0) {
//Util.Debug("New FBU: RQ.slice(0,20): " + RQ.slice(0,20));
if (RQ.length < 3) {
RQ.unshift(0); // FBU msg_type
Util.Debug(" waiting for FBU header bytes");
return false;
}
RQ.shift8();
FBU.rects = RQ.shift16();
//Util.Debug("FramebufferUpdate, rects:" + FBU.rects);
FBU.bytes = 0;
timing.cur_fbu = 0;
timing.h_fbus += 1;
if (timing.fbu_rt_start > 0) {
now = (new Date()).getTime();
Util.Info("First FBU latency: " + (now - timing.fbu_rt_start));
}
try {
decode_message(e.data);
if (RQ.length > 0) {
handle_message();
} else {
Util.Debug("Ignoring empty message");
}
while (FBU.rects > 0) {
if (RFB.state !== "normal") {
return false;
} 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 (RQ.length < FBU.bytes) {
return false;
if (typeof exc.name !== 'undefined') {
updateState('failed', exc.name + ": " + exc.message);
} else {
updateState('failed', exc);
}
if (FBU.bytes === 0) {
if (RQ.length < 12) {
//Util.Debug(" waiting for rect header bytes");
return false;
}
/* New FramebufferUpdate */
FBU.x = RQ.shift16();
FBU.y = RQ.shift16();
FBU.width = RQ.shift16();
FBU.height = RQ.shift16();
FBU.encoding = parseInt(RQ.shift32(), 10);
timing.h_bytes += 12;
//Util.Debug("<< recv_message");
};
if (RFB.encNames[FBU.encoding]) {
// Debug:
/*
var msg = "FramebufferUpdate rects:" + FBU.rects;
msg += " x: " + FBU.x + " y: " + FBU.y
msg += " width: " + FBU.width + " height: " + FBU.height;
msg += " encoding:" + FBU.encoding;
msg += "(" + RFB.encNames[FBU.encoding] + ")";
msg += ", RQ.length: " + RQ.length;
Util.Debug(msg);
*/
// overridable for testing
send_array = function(arr) {
//Util.Debug(">> send_array: " + arr);
encode_message(arr);
if (ws.bufferedAmount === 0) {
//Util.Debug("arr: " + arr);
//Util.Debug("SQ: " + SQ);
ws.send(SQ);
SQ = "";
} else {
RFB.updateState('failed',
"Disconnected: unsupported encoding " +
FBU.encoding);
return false;
}
Util.Debug("Delaying send");
}
};
timing.last_fbu = (new Date()).getTime();
last_bytes = RQ.length;
last_rects = FBU.rects;
function send_string(str) {
//Util.Debug(">> send_string: " + str);
send_array(str.split('').map(
function (chr) { return chr.charCodeAt(0); } ) );
}
// false ret means need more data
ret = RFB.encHandlers[FBU.encoding]();
function genDES(password, challenge) {
var i, passwd, response;
passwd = [];
response = challenge.slice();
for (i=0; i < password.length; i += 1) {
passwd.push(password.charCodeAt(i));
}
now = (new Date()).getTime();
timing.cur_fbu += (now - timing.last_fbu);
timing.h_bytes += last_bytes-RQ.length;
DES.setKeys(passwd);
DES.encrypt(response, 0, response, 0);
DES.encrypt(response, 8, response, 8);
return response;
}
if (FBU.rects < last_rects) {
// Some work was done
timing.h_rects += last_rects-FBU.rects;
timing.h_pixels += FBU.width*FBU.height;
}
function flushClient() {
if (mouse_arr.length > 0) {
//send_array(mouse_arr.concat(fbUpdateRequest(1)));
send_array(mouse_arr);
setTimeout(function() {
send_array(fbUpdateRequest(1));
}, 50);
if (FBU.rects === 0) {
if (((FBU.width === RFB.fb_width) &&
(FBU.height === RFB.fb_height)) ||
(timing.fbu_rt_start > 0)) {
timing.full_fbu_total += timing.cur_fbu;
timing.full_fbu_cnt += 1;
Util.Info("Timing of full FBU, cur: " +
timing.cur_fbu + ", total: " +
timing.full_fbu_total + ", cnt: " +
timing.full_fbu_cnt + ", avg: " +
(timing.full_fbu_total /
timing.full_fbu_cnt));
mouse_arr = [];
return true;
} else {
return false;
}
if (timing.fbu_rt_start > 0) {
fbu_rt_diff = now - timing.fbu_rt_start;
timing.fbu_rt_total += fbu_rt_diff;
timing.fbu_rt_cnt += 1;
Util.Info("full FBU round-trip, cur: " +
fbu_rt_diff + ", total: " +
timing.fbu_rt_total + ", cnt: " +
timing.fbu_rt_cnt + ", avg: " +
(timing.fbu_rt_total /
timing.fbu_rt_cnt));
timing.fbu_rt_start = 0;
}
// overridable for testing
checkEvents = function() {
var now;
if (rfb_state === 'normal') {
if (! flushClient()) {
now = new Date().getTime();
if (now > last_req_time + conf.fbu_req_rate) {
last_req_time = now;
send_array(fbUpdateRequest(1));
}
}
}
return ret;
},
/*
* FramebufferUpdate encodings
*/
display_raw: function () {
//Util.Debug(">> display_raw");
setTimeout(checkEvents, conf.check_rate);
};
var RQ = RFB.RQ, FBU = RFB.FBU, cur_y, cur_height;
if (FBU.lines === 0) {
FBU.lines = FBU.height;
}
FBU.bytes = FBU.width * RFB.fb_Bpp; // At least a line
if (RQ.length < FBU.bytes) {
//Util.Debug(" waiting for " +
// (FBU.bytes - RQ.length) + " RAW bytes");
return false;
}
cur_y = FBU.y + (FBU.height - FBU.lines);
cur_height = Math.min(FBU.lines,
Math.floor(RQ.length/(FBU.width * RFB.fb_Bpp)));
Canvas.blitImage(FBU.x, cur_y, FBU.width, cur_height, RQ, 0);
RQ.shiftBytes(FBU.width * cur_height * RFB.fb_Bpp);
FBU.lines -= cur_height;
function keyPress(keysym, down) {
var arr;
arr = keyEvent(keysym, down);
arr = arr.concat(fbUpdateRequest(1));
send_array(arr);
}
if (FBU.lines > 0) {
FBU.bytes = FBU.width * RFB.fb_Bpp; // At least another line
function mouseButton(x, y, down, bmask) {
if (down) {
mouse_buttonMask |= bmask;
} else {
FBU.rects -= 1;
FBU.bytes = 0;
mouse_buttonMask ^= bmask;
}
return true;
},
mouse_arr = mouse_arr.concat( pointerEvent(x, y) );
flushClient();
}
display_copy_rect: function () {
//Util.Debug(">> display_copy_rect");
function mouseMove(x, y) {
//Util.Debug('>> mouseMove ' + x + "," + y);
mouse_arr = mouse_arr.concat( pointerEvent(x, y) );
}
var RQ = RFB.RQ, FBU = RFB.FBU, old_x, old_y;
if (RQ.length < 4) {
//Util.Debug(" waiting for " +
// (FBU.bytes - RQ.length) + " COPYRECT bytes");
return false;
}
old_x = RQ.shift16();
old_y = RQ.shift16();
Canvas.copyImage(old_x, old_y, FBU.x, FBU.y, FBU.width, FBU.height);
FBU.rects -= 1;
FBU.bytes = 0;
return true;
},
display_rre: function () {
//Util.Debug(">> display_rre (" + RFB.RQ.length + " bytes)");
var RQ = RFB.RQ, FBU = RFB.FBU, color, x, y, width, height, chunk;
if (FBU.subrects === 0) {
if (RQ.length < 4 + RFB.fb_Bpp) {
//Util.Debug(" waiting for " +
// (4 + RFB.fb_Bpp - RQ.length) + " RRE bytes");
return false;
}
FBU.subrects = RQ.shift32();
color = RQ.shiftBytes(RFB.fb_Bpp); // Background
Canvas.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color);
function update_timings() {
var now, offset;
now = (new Date()).getTime();
timing.history.push([now,
timing.h_fbus,
timing.h_rects,
timing.h_bytes,
timing.h_pixels]);
timing.h_fbus = 0;
timing.h_rects = 0;
timing.h_bytes = 0;
timing.h_pixels = 0;
if ((rfb_state !== 'disconnected') && (rfb_state !== 'failed')) {
// Try for every second
offset = (now - timing.history_start) % 1000;
if (offset < 500) {
setTimeout(update_timings, 1000 - offset);
} else {
setTimeout(update_timings, 2000 - offset);
}
while ((FBU.subrects > 0) && (RQ.length >= (RFB.fb_Bpp + 8))) {
color = RQ.shiftBytes(RFB.fb_Bpp);
x = RQ.shift16();
y = RQ.shift16();
width = RQ.shift16();
height = RQ.shift16();
Canvas.fillRect(FBU.x + x, FBU.y + y, width, height, color);
FBU.subrects -= 1;
}
//Util.Debug(" display_rre: rects: " + FBU.rects +
// ", FBU.subrects: " + FBU.subrects);
}
if (FBU.subrects > 0) {
chunk = Math.min(RFB.rre_chunk, FBU.subrects);
FBU.bytes = (RFB.fb_Bpp + 8) * chunk;
} else {
FBU.rects -= 1;
FBU.bytes = 0;
show_timings = function() {
var i, history, msg,
delta, tot_time = 0, tot_fbus = 0, tot_rects = 0,
tot_bytes = 0, tot_pixels = 0;
if (timing.history_start === 0) { return; }
//Util.Debug(">> show_timings");
update_timings(); // Final accumulate
msg = "\nTimings\n";
msg += " time: fbus,rects,bytes,pixels\n";
for (i=0; i < timing.history.length; i += 1) {
history = timing.history[i];
delta = ((history[0]-timing.history_start)/1000);
tot_time = delta;
tot_fbus += history[1];
tot_rects += history[2];
tot_bytes += history[3];
tot_pixels += history[4];
msg += " " + delta.toFixed(3);
msg += ": " + history.slice(1) + "\n";
}
//Util.Debug("<< display_rre, FBU.bytes: " + FBU.bytes);
return true;
},
msg += "\nTotals:\n";
msg += " time: fbus,rects,bytes,pixels\n";
msg += " " + tot_time.toFixed(3);
msg += ": " + tot_fbus + "," + tot_rects;
msg += "," + tot_bytes + "," + tot_pixels;
Util.Info(msg);
//Util.Debug("<< show_timings");
};
display_hextile: function() {
//Util.Debug(">> display_hextile");
var RQ = RFB.RQ, FBU = RFB.FBU,
subencoding, subrects, idx, tile, color, cur_tile,
tile_x, x, w, tile_y, y, h, xy, s, sx, sy, wh, sw, sh;
//
// Server message handlers
//
if (FBU.tiles === 0) {
FBU.tiles_x = Math.ceil(FBU.width/16);
FBU.tiles_y = Math.ceil(FBU.height/16);
FBU.total_tiles = FBU.tiles_x * FBU.tiles_y;
FBU.tiles = FBU.total_tiles;
}
// RFB/VNC initialisation message handler
init_msg = function() {
//Util.Debug(">> init_msg [rfb_state '" + rfb_state + "']");
/* FBU.bytes comes in as 1, RQ.length at least 1 */
while (FBU.tiles > 0) {
FBU.bytes = 1;
if (RQ.length < FBU.bytes) {
//Util.Debug(" waiting for HEXTILE subencoding byte");
return false;
var strlen, reason, reason_len, sversion, cversion,
i, types, num_types, challenge, response, bpp, depth,
big_endian, true_color, name_length;
//Util.Debug("RQ (" + RQ.length + ") " + RQ);
switch (rfb_state) {
case 'ProtocolVersion' :
if (RQ.length < 12) {
updateState('failed',
"Disconnected: incomplete protocol version");
return;
}
subencoding = RQ[0]; // Peek
if (subencoding > 30) { // Raw
RFB.updateState('failed',
"Disconnected: illegal hextile subencoding " + subencoding);
//Util.Debug("RQ.slice(0,30):" + RQ.slice(0,30));
return false;
sversion = RQ.shiftStr(12).substr(4,7);
Util.Info("Server ProtocolVersion: " + sversion);
switch (sversion) {
case "003.003": rfb_version = 3.3; break;
case "003.007": rfb_version = 3.7; break;
case "003.008": rfb_version = 3.8; break;
default:
updateState('failed',
"Invalid server version " + sversion);
return;
}
if (rfb_version > rfb_max_version) {
rfb_version = rfb_max_version;
}
subrects = 0;
cur_tile = FBU.total_tiles - FBU.tiles;
tile_x = cur_tile % FBU.tiles_x;
tile_y = Math.floor(cur_tile / FBU.tiles_x);
x = FBU.x + tile_x * 16;
y = FBU.y + tile_y * 16;
w = Math.min(16, (FBU.x + FBU.width) - x);
h = Math.min(16, (FBU.y + FBU.height) - y);
/* Figure out how much we are expecting */
if (subencoding & 0x01) { // Raw
//Util.Debug(" Raw subencoding");
FBU.bytes += w * h * RFB.fb_Bpp;
if (! test_mode) {
sendID = setInterval(function() {
// Send updates either at a rate of one update
// every 50ms, or whatever slower rate the network
// can handle.
if (ws.bufferedAmount === 0) {
if (SQ) {
ws.send(SQ);
SQ = "";
}
} else {
if (subencoding & 0x02) { // Background
FBU.bytes += RFB.fb_Bpp;
Util.Debug("Delaying send");
}
if (subencoding & 0x04) { // Foreground
FBU.bytes += RFB.fb_Bpp;
}, 50);
}
if (subencoding & 0x08) { // AnySubrects
FBU.bytes += 1; // Since we aren't shifting it off
if (RQ.length < FBU.bytes) {
/* Wait for subrects byte */
//Util.Debug(" waiting for hextile subrects header byte");
return false;
cversion = "00" + parseInt(rfb_version,10) +
".00" + ((rfb_version * 10) % 10);
send_string("RFB " + cversion + "\n");
updateState('Security', "Sent ProtocolVersion: " + sversion);
break;
case 'Security' :
if (rfb_version >= 3.7) {
num_types = RQ.shift8();
if (num_types === 0) {
strlen = RQ.shift32();
reason = RQ.shiftStr(strlen);
updateState('failed',
"Disconnected: security failure: " + reason);
return;
}
subrects = RQ[FBU.bytes-1]; // Peek
if (subencoding & 0x10) { // SubrectsColoured
FBU.bytes += subrects * (RFB.fb_Bpp + 2);
} else {
FBU.bytes += subrects * 2;
rfb_auth_scheme = 0;
types = RQ.shiftBytes(num_types);
Util.Debug("Server security types: " + types);
for (i=0; i < types.length; i+=1) {
if ((types[i] > rfb_auth_scheme) && (types[i] < 3)) {
rfb_auth_scheme = types[i];
}
}
if (rfb_auth_scheme === 0) {
updateState('failed',
"Disconnected: unsupported security types: " + types);
return;
}
//Util.Debug(" tile:" + cur_tile + "/" + (FBU.total_tiles - 1) +
// ", subencoding:" + subencoding +
// "(last: " + FBU.lastsubencoding + "), subrects:" +
// subrects + ", tile:" + tile_x + "," + tile_y +
// " [" + x + "," + y + "]@" + w + "x" + h +
// ", d.length:" + RQ.length + ", bytes:" + FBU.bytes +
// " last:" + RQ.slice(FBU.bytes-10, FBU.bytes) +
// " next:" + RQ.slice(FBU.bytes-1, FBU.bytes+10));
if (RQ.length < FBU.bytes) {
//Util.Debug(" waiting for " +
// (FBU.bytes - RQ.length) + " hextile bytes");
return false;
send_array([rfb_auth_scheme]);
} else {
if (RQ.length < 4) {
updateState('failed', "Invalid security frame");
return;
}
rfb_auth_scheme = RQ.shift32();
}
updateState('Authentication',
"Authenticating using scheme: " + rfb_auth_scheme);
init_msg(); // Recursive fallthrough (workaround JSLint complaint)
break;
/* We know the encoding and have a whole tile */
FBU.subencoding = RQ[0];
idx = 1;
if (FBU.subencoding === 0) {
if (FBU.lastsubencoding & 0x01) {
/* Weird: ignore blanks after RAW */
Util.Debug(" Ignoring blank after RAW");
} else {
Canvas.fillRect(x, y, w, h, FBU.background);
case 'Authentication' :
//Util.Debug("Security auth scheme: " + rfb_auth_scheme);
switch (rfb_auth_scheme) {
case 0: // connection failed
if (RQ.length < 4) {
//Util.Debug(" waiting for auth reason bytes");
return;
}
} else if (FBU.subencoding & 0x01) { // Raw
Canvas.blitImage(x, y, w, h, RQ, idx);
} else {
if (FBU.subencoding & 0x02) { // Background
FBU.background = RQ.slice(idx, idx + RFB.fb_Bpp);
idx += RFB.fb_Bpp;
strlen = RQ.shift32();
reason = RQ.shiftStr(strlen);
updateState('failed',
"Disconnected: auth failure: " + reason);
return;
case 1: // no authentication
updateState('SecurityResult');
break;
case 2: // VNC authentication
if (rfb_password.length === 0) {
updateState('password', "Password Required");
return;
}
if (FBU.subencoding & 0x04) { // Foreground
FBU.foreground = RQ.slice(idx, idx + RFB.fb_Bpp);
idx += RFB.fb_Bpp;
if (RQ.length < 16) {
//Util.Debug(" waiting for auth challenge bytes");
return;
}
challenge = RQ.shiftBytes(16);
//Util.Debug("Password: " + rfb_password);
//Util.Debug("Challenge: " + challenge +
// " (" + challenge.length + ")");
response = genDES(rfb_password, challenge);
//Util.Debug("Response: " + response +
// " (" + response.length + ")");
tile = Canvas.getTile(x, y, w, h, FBU.background);
if (FBU.subencoding & 0x08) { // AnySubrects
subrects = RQ[idx];
idx += 1;
for (s = 0; s < subrects; s += 1) {
if (FBU.subencoding & 0x10) { // SubrectsColoured
color = RQ.slice(idx, idx + RFB.fb_Bpp);
idx += RFB.fb_Bpp;
} else {
color = FBU.foreground;
//Util.Debug("Sending DES encrypted auth response");
send_array(response);
updateState('SecurityResult');
break;
default:
updateState('failed',
"Disconnected: unsupported auth scheme: " +
rfb_auth_scheme);
return;
}
xy = RQ[idx];
idx += 1;
sx = (xy >> 4);
sy = (xy & 0x0f);
wh = RQ[idx];
idx += 1;
sw = (wh >> 4) + 1;
sh = (wh & 0x0f) + 1;
break;
Canvas.setSubTile(tile, sx, sy, sw, sh, color);
}
case 'SecurityResult' :
if (RQ.length < 4) {
updateState('failed', "Invalid VNC auth response");
return;
}
Canvas.putTile(tile);
switch (RQ.shift32()) {
case 0: // OK
updateState('ServerInitialisation', "Authentication OK");
break;
case 1: // failed
if (rfb_version >= 3.8) {
reason_len = RQ.shift32();
reason = RQ.shiftStr(reason_len);
updateState('failed', reason);
} else {
updateState('failed', "Authentication failed");
}
RQ.shiftBytes(FBU.bytes);
FBU.lastsubencoding = FBU.subencoding;
FBU.bytes = 0;
FBU.tiles -= 1;
return;
case 2: // too-many
updateState('failed',
"Disconnected: too many auth attempts");
return;
}
send_array([rfb_shared]); // ClientInitialisation
break;
if (FBU.tiles === 0) {
FBU.rects -= 1;
case 'ServerInitialisation' :
if (RQ.length < 24) {
updateState('failed', "Invalid server initialisation");
return;
}
//Util.Debug("<< display_hextile");
return true;
},
/* Screen size */
fb_width = RQ.shift16();
fb_height = RQ.shift16();
display_tight_png: function() {
//Util.Debug(">> display_tight_png");
var RQ = RFB.RQ, FBU = RFB.FBU,
ctl, cmode, clength, getCLength, color, img;
//Util.Debug(" FBU.rects: " + FBU.rects);
//Util.Debug(" RQ.length: " + RQ.length);
//Util.Debug(" RQ.slice(0,20): " + RQ.slice(0,20));
/* PIXEL_FORMAT */
bpp = RQ.shift8();
depth = RQ.shift8();
big_endian = RQ.shift8();
true_color = RQ.shift8();
Util.Info("Screen: " + fb_width + "x" + fb_height +
", bpp: " + bpp + ", depth: " + depth +
", big_endian: " + big_endian +
", true_color: " + true_color);
FBU.bytes = 1; // compression-control byte
if (RQ.length < FBU.bytes) {
Util.Debug(" waiting for TIGHT compression-control byte");
return false;
}
/* Connection name/title */
RQ.shiftStr(12);
name_length = RQ.shift32();
fb_name = RQ.shiftStr(name_length);
// Get 'compact length' header and data size
getCLength = function (arr, offset) {
var header = 1, data = 0;
data += arr[offset + 0] & 0x7f;
if (arr[offset + 0] & 0x80) {
header += 1;
data += (arr[offset + 1] & 0x7f) << 7;
if (arr[offset + 1] & 0x80) {
header += 1;
data += arr[offset + 2] << 14;
}
canvas.resize(fb_width, fb_height, conf.true_color);
canvas.start(keyPress, mouseButton, mouseMove);
if (conf.true_color) {
fb_Bpp = 4;
fb_depth = 3;
} else {
fb_Bpp = 1;
fb_depth = 1;
}
return [header, data];
};
ctl = RQ[0];
switch (ctl >> 4) {
case 0x08: cmode = "fill"; break;
case 0x09: cmode = "jpeg"; break;
case 0x0A: cmode = "png"; break;
default: throw("Illegal basic compression received, ctl: " + ctl);
response = pixelFormat();
response = response.concat(clientEncodings());
response = response.concat(fbUpdateRequest(0));
timing.fbu_rt_start = (new Date()).getTime();
send_array(response);
/* Start pushing/polling */
setTimeout(checkEvents, conf.check_rate);
setTimeout(scan_tight_imgs, scan_imgs_rate);
timing.history_start = (new Date()).getTime();
setTimeout(update_timings, 1000);
if (conf.encrypt) {
updateState('normal', "Connected (encrypted) to: " + fb_name);
} else {
updateState('normal', "Connected (unencrypted) to: " + fb_name);
}
switch (cmode) {
// fill uses fb_depth because TPIXELs drop the padding byte
case "fill": FBU.bytes += RFB.fb_depth; break; // TPIXEL
case "jpeg": FBU.bytes += 3; break; // max clength
case "png": FBU.bytes += 3; break; // max clength
break;
}
//Util.Debug("<< init_msg");
};
if (RQ.length < FBU.bytes) {
Util.Debug(" waiting for TIGHT " + cmode + " bytes");
return false;
}
//Util.Debug(" RQ.slice(0,20): " + RFB.RQ.slice(0,20) + " (" + RFB.RQ.length + ")");
//Util.Debug(" cmode: " + cmode);
/* Normal RFB/VNC server message handler */
normal_msg = function() {
//Util.Debug(">> normal_msg");
// Determine FBU.bytes
switch (cmode) {
case "fill":
RQ.shift8(); // shift off ctl
color = RQ.shiftBytes(RFB.fb_depth);
Canvas.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color);
var ret = true, msg_type,
c, first_colour, num_colours, red, green, blue;
//Util.Debug(">> msg RQ.slice(0,10): " + RQ.slice(0,20));
//Util.Debug(">> msg RQ.slice(-10,-1): " + RQ.slice(RQ.length-10,RQ.length));
if (FBU.rects > 0) {
msg_type = 0;
} else if (cuttext !== 'none') {
msg_type = 3;
} else {
msg_type = RQ.shift8();
}
switch (msg_type) {
case 0: // FramebufferUpdate
ret = framebufferUpdate(); // false means need more data
break;
case "jpeg":
case "png":
clength = getCLength(RQ, 1);
FBU.bytes = 1 + clength[0] + clength[1]; // ctl + clength size + jpeg-data
if (RQ.length < FBU.bytes) {
Util.Debug(" waiting for TIGHT " + cmode + " bytes");
case 1: // SetColourMapEntries
Util.Debug("SetColourMapEntries");
RQ.shift8(); // Padding
first_colour = RQ.shift16(); // First colour
num_colours = RQ.shift16();
for (c=0; c < num_colours; c+=1) {
red = RQ.shift16();
//Util.Debug("red before: " + red);
red = parseInt(red / 256, 10);
//Util.Debug("red after: " + red);
green = parseInt(RQ.shift16() / 256, 10);
blue = parseInt(RQ.shift16() / 256, 10);
canvas.set_colourMap([red, green, blue], first_colour + c);
}
Util.Info("Registered " + num_colours + " colourMap entries");
//Util.Debug("colourMap: " + canvas.get_colourMap());
break;
case 2: // Bell
Util.Warn("Bell (unsupported)");
break;
case 3: // ServerCutText
Util.Debug("ServerCutText");
Util.Debug("RQ:" + RQ.slice(0,20));
if (cuttext === 'none') {
cuttext = 'header';
}
if (cuttext === 'header') {
if (RQ.length < 7) {
//Util.Debug("waiting for ServerCutText header");
return false;
}
// We have everything, render it
//Util.Debug(" png, RQ.length: " + RQ.length + ", clength[0]: " + clength[0] + ", clength[1]: " + clength[1]);
RQ.shiftBytes(1 + clength[0]); // shift off ctl + compact length
img = new Image();
img.onload = RFB.scan_tight_imgs;
FBU.imgs.push([img, FBU.x, FBU.y]);
img.src = "data:image/" + cmode +
RFB.extract_data_uri(RQ.shiftBytes(clength[1]));
img = null;
RQ.shiftBytes(3); // Padding
cuttext_length = RQ.shift32();
}
cuttext = 'bytes';
if (RQ.length < cuttext_length) {
//Util.Debug("waiting for ServerCutText bytes");
return false;
}
conf.clipboardReceive(that, RQ.shiftStr(cuttext_length));
cuttext = 'none';
break;
default:
updateState('failed',
"Disconnected: illegal server message type " + msg_type);
Util.Debug("RQ.slice(0,30):" + RQ.slice(0,30));
break;
}
FBU.bytes = 0;
FBU.rects -= 1;
//Util.Debug(" ending RQ.length: " + RQ.length);
//Util.Debug(" ending RQ.slice(0,20): " + RQ.slice(0,20));
//Util.Debug("<< display_tight_png");
return true;
},
//Util.Debug("<< normal_msg");
return ret;
};
extract_data_uri : function (arr) {
//var i, stra = [];
//for (i=0; i< arr.length; i += 1) {
// stra.push(String.fromCharCode(arr[i]));
//}
//return "," + escape(stra.join(''));
return ";base64," + Base64.encode(arr);
},
framebufferUpdate = function() {
var now, fbu_rt_diff, last_bytes, last_rects, ret = true;
scan_tight_imgs : function () {
var img, imgs;
if (RFB.state === 'normal') {
imgs = RFB.FBU.imgs;
while ((imgs.length > 0) && (imgs[0][0].complete)) {
img = imgs.shift();
Canvas.ctx.drawImage(img[0], img[1], img[2]);
if (FBU.rects === 0) {
//Util.Debug("New FBU: RQ.slice(0,20): " + RQ.slice(0,20));
if (RQ.length < 3) {
RQ.unshift(0); // FBU msg_type
Util.Debug(" waiting for FBU header bytes");
return false;
}
RQ.shift8();
FBU.rects = RQ.shift16();
//Util.Debug("FramebufferUpdate, rects:" + FBU.rects);
FBU.bytes = 0;
timing.cur_fbu = 0;
timing.h_fbus += 1;
if (timing.fbu_rt_start > 0) {
now = (new Date()).getTime();
Util.Info("First FBU latency: " + (now - timing.fbu_rt_start));
}
setTimeout(RFB.scan_tight_imgs, RFB.scan_imgs_rate);
}
},
set_desktopsize : function () {
Util.Debug(">> set_desktopsize");
RFB.fb_width = RFB.FBU.width;
RFB.fb_height = RFB.FBU.height;
Canvas.clear();
Canvas.resize(RFB.fb_width, RFB.fb_height);
RFB.timing.fbu_rt_start = (new Date()).getTime();
// Send a new non-incremental request
RFB.send_array(RFB.fbUpdateRequest(0));
RFB.FBU.bytes = 0;
RFB.FBU.rects -= 1;
Util.Debug("<< set_desktopsize");
return true;
},
set_cursor: function () {
var x, y, w, h, pixelslength, masklength;
//Util.Debug(">> set_cursor");
x = RFB.FBU.x; // hotspot-x
y = RFB.FBU.y; // hotspot-y
w = RFB.FBU.width;
h = RFB.FBU.height;
pixelslength = w * h * RFB.fb_Bpp;
masklength = Math.floor((w + 7) / 8) * h;
if (RFB.RQ.length < (pixelslength + masklength)) {
//Util.Debug("waiting for cursor encoding bytes");
RFB.FBU.bytes = pixelslength + masklength;
while (FBU.rects > 0) {
if (rfb_state !== "normal") {
return false;
}
if (RQ.length < FBU.bytes) {
return false;
}
if (FBU.bytes === 0) {
if (RQ.length < 12) {
//Util.Debug(" waiting for rect header bytes");
return false;
}
/* New FramebufferUpdate */
FBU.x = RQ.shift16();
FBU.y = RQ.shift16();
FBU.width = RQ.shift16();
FBU.height = RQ.shift16();
FBU.encoding = parseInt(RQ.shift32(), 10);
timing.h_bytes += 12;
//Util.Debug(" set_cursor, x: " + x + ", y: " + y + ", w: " + w + ", h: " + h);
Canvas.changeCursor(RFB.RQ.shiftBytes(pixelslength),
RFB.RQ.shiftBytes(masklength),
x, y, w, h);
RFB.FBU.bytes = 0;
RFB.FBU.rects -= 1;
//Util.Debug("<< set_cursor");
return true;
},
if (encNames[FBU.encoding]) {
// Debug:
/*
var msg = "FramebufferUpdate rects:" + FBU.rects;
msg += " x: " + FBU.x + " y: " + FBU.y
msg += " width: " + FBU.width + " height: " + FBU.height;
msg += " encoding:" + FBU.encoding;
msg += "(" + encNames[FBU.encoding] + ")";
msg += ", RQ.length: " + RQ.length;
Util.Debug(msg);
*/
} else {
updateState('failed',
"Disconnected: unsupported encoding " +
FBU.encoding);
return false;
}
}
set_jpeg_quality : function () {
Util.Debug(">> set_jpeg_quality");
},
set_compress_level: function () {
Util.Debug(">> set_compress_level");
},
timing.last_fbu = (new Date()).getTime();
last_bytes = RQ.length;
last_rects = FBU.rects;
/*
* Client message routines
*/
// false ret means need more data
ret = encHandlers[FBU.encoding]();
pixelFormat: function () {
//Util.Debug(">> pixelFormat");
var arr;
arr = [0]; // msg-type
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(0); // padding
now = (new Date()).getTime();
timing.cur_fbu += (now - timing.last_fbu);
timing.h_bytes += last_bytes-RQ.length;
arr.push8(RFB.fb_Bpp * 8); // bits-per-pixel
arr.push8(RFB.fb_depth * 8); // depth
arr.push8(0); // little-endian
arr.push8(RFB.true_color); // true-color
if (FBU.rects < last_rects) {
// Some work was done
timing.h_rects += last_rects-FBU.rects;
timing.h_pixels += FBU.width*FBU.height;
}
arr.push16(255); // red-max
arr.push16(255); // green-max
arr.push16(255); // blue-max
arr.push8(0); // red-shift
arr.push8(8); // green-shift
arr.push8(16); // blue-shift
if (FBU.rects === 0) {
if (((FBU.width === fb_width) &&
(FBU.height === fb_height)) ||
(timing.fbu_rt_start > 0)) {
timing.full_fbu_total += timing.cur_fbu;
timing.full_fbu_cnt += 1;
Util.Info("Timing of full FBU, cur: " +
timing.cur_fbu + ", total: " +
timing.full_fbu_total + ", cnt: " +
timing.full_fbu_cnt + ", avg: " +
(timing.full_fbu_total /
timing.full_fbu_cnt));
}
if (timing.fbu_rt_start > 0) {
fbu_rt_diff = now - timing.fbu_rt_start;
timing.fbu_rt_total += fbu_rt_diff;
timing.fbu_rt_cnt += 1;
Util.Info("full FBU round-trip, cur: " +
fbu_rt_diff + ", total: " +
timing.fbu_rt_total + ", cnt: " +
timing.fbu_rt_cnt + ", avg: " +
(timing.fbu_rt_total /
timing.fbu_rt_cnt));
timing.fbu_rt_start = 0;
}
}
}
return ret;
};
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(0); // padding
//Util.Debug("<< pixelFormat");
return arr;
},
//
// FramebufferUpdate encodings
//
fixColourMapEntries: function () {
},
encHandlers.RAW = function display_raw() {
//Util.Debug(">> display_raw");
clientEncodings: function () {
//Util.Debug(">> clientEncodings");
var arr, i, encList = [];
var cur_y, cur_height;
for (i=0; i<RFB.encodings.length; i += 1) {
if ((RFB.encodings[i][0] === "Cursor") &&
(! RFB.local_cursor)) {
Util.Debug("Skipping Cursor pseudo-encoding");
} else {
//Util.Debug("Adding encoding: " + RFB.encodings[i][0]);
encList.push(RFB.encodings[i][1]);
if (FBU.lines === 0) {
FBU.lines = FBU.height;
}
FBU.bytes = FBU.width * fb_Bpp; // At least a line
if (RQ.length < FBU.bytes) {
//Util.Debug(" waiting for " +
// (FBU.bytes - RQ.length) + " RAW bytes");
return false;
}
cur_y = FBU.y + (FBU.height - FBU.lines);
cur_height = Math.min(FBU.lines,
Math.floor(RQ.length/(FBU.width * fb_Bpp)));
canvas.blitImage(FBU.x, cur_y, FBU.width, cur_height, RQ, 0);
RQ.shiftBytes(FBU.width * cur_height * fb_Bpp);
FBU.lines -= cur_height;
arr = [2]; // msg-type
arr.push8(0); // padding
arr.push16(encList.length); // encoding count
for (i=0; i < encList.length; i += 1) {
arr.push32(encList[i]);
if (FBU.lines > 0) {
FBU.bytes = FBU.width * fb_Bpp; // At least another line
} else {
FBU.rects -= 1;
FBU.bytes = 0;
}
//Util.Debug("<< clientEncodings: " + arr);
return arr;
},
fbUpdateRequest: function (incremental, x, y, xw, yw) {
//Util.Debug(">> fbUpdateRequest");
if (!x) { x = 0; }
if (!y) { y = 0; }
if (!xw) { xw = RFB.fb_width; }
if (!yw) { yw = RFB.fb_height; }
var arr;
arr = [3]; // msg-type
arr.push8(incremental);
arr.push16(x);
arr.push16(y);
arr.push16(xw);
arr.push16(yw);
//Util.Debug("<< fbUpdateRequest");
return arr;
},
keyEvent: function (keysym, down) {
//Util.Debug(">> keyEvent, keysym: " + keysym + ", down: " + down);
var arr;
arr = [4]; // msg-type
arr.push8(down);
arr.push16(0);
arr.push32(keysym);
//Util.Debug("<< keyEvent");
return arr;
},
return true;
};
pointerEvent: function (x, y) {
//Util.Debug(">> pointerEvent, x,y: " + x + "," + y +
// " , mask: " + RFB.mouse_buttonMask);
var arr;
arr = [5]; // msg-type
arr.push8(RFB.mouse_buttonMask);
arr.push16(x);
arr.push16(y);
//Util.Debug("<< pointerEvent");
return arr;
},
encHandlers.COPYRECT = function display_copy_rect() {
//Util.Debug(">> display_copy_rect");
clientCutText: function (text) {
//Util.Debug(">> clientCutText");
var arr;
arr = [6]; // msg-type
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(0); // padding
arr.push32(text.length);
arr.pushStr(text);
//Util.Debug("<< clientCutText:" + arr);
return arr;
},
var old_x, old_y;
if (RQ.length < 4) {
//Util.Debug(" waiting for " +
// (FBU.bytes - RQ.length) + " COPYRECT bytes");
return false;
}
old_x = RQ.shift16();
old_y = RQ.shift16();
canvas.copyImage(old_x, old_y, FBU.x, FBU.y, FBU.width, FBU.height);
FBU.rects -= 1;
FBU.bytes = 0;
return true;
};
/*
* Utility routines
*/
encHandlers.RRE = function display_rre() {
//Util.Debug(">> display_rre (" + RQ.length + " bytes)");
var color, x, y, width, height, chunk;
encode_message: function(arr) {
if (RFB.b64encode) {
/* base64 encode */
RFB.SQ = RFB.SQ + Base64.encode(arr);
} else {
/* UTF-8 encode. 0 -> 256 to avoid WebSockets framing */
RFB.SQ = RFB.SQ + arr.map(function (num) {
if (num === 0) {
return String.fromCharCode(256);
} else {
return String.fromCharCode(num);
if (FBU.subrects === 0) {
if (RQ.length < 4 + fb_Bpp) {
//Util.Debug(" waiting for " +
// (4 + fb_Bpp - RQ.length) + " RRE bytes");
return false;
}
} ).join('');
FBU.subrects = RQ.shift32();
color = RQ.shiftBytes(fb_Bpp); // Background
canvas.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color);
}
while ((FBU.subrects > 0) && (RQ.length >= (fb_Bpp + 8))) {
color = RQ.shiftBytes(fb_Bpp);
x = RQ.shift16();
y = RQ.shift16();
width = RQ.shift16();
height = RQ.shift16();
canvas.fillRect(FBU.x + x, FBU.y + y, width, height, color);
FBU.subrects -= 1;
}
},
//Util.Debug(" display_rre: rects: " + FBU.rects +
// ", FBU.subrects: " + FBU.subrects);
decode_message: function(data) {
var i, length, RQ = RFB.RQ;
//Util.Debug(">> decode_message: " + data);
if (RFB.b64encode) {
/* base64 decode */
RFB.RQ = RFB.RQ.concat(Base64.decode(data, 0));
if (FBU.subrects > 0) {
chunk = Math.min(rre_chunk_sz, FBU.subrects);
FBU.bytes = (fb_Bpp + 8) * chunk;
} else {
/* UTF-8 decode. 256 -> 0 to WebSockets framing */
length = data.length;
for (i=0; i < length; i += 1) {
RQ.push(data.charCodeAt(i) % 256);
FBU.rects -= 1;
FBU.bytes = 0;
}
//Util.Debug("<< display_rre, FBU.bytes: " + FBU.bytes);
return true;
};
encHandlers.HEXTILE = function display_hextile() {
//Util.Debug(">> display_hextile");
var subencoding, subrects, idx, tile, color, cur_tile,
tile_x, x, w, tile_y, y, h, xy, s, sx, sy, wh, sw, sh;
if (FBU.tiles === 0) {
FBU.tiles_x = Math.ceil(FBU.width/16);
FBU.tiles_y = Math.ceil(FBU.height/16);
FBU.total_tiles = FBU.tiles_x * FBU.tiles_y;
FBU.tiles = FBU.total_tiles;
}
//Util.Debug(">> decode_message, RQ: " + RFB.RQ);
},
recv_message: function(e) {
//Util.Debug(">> recv_message");
/* FBU.bytes comes in as 1, RQ.length at least 1 */
while (FBU.tiles > 0) {
FBU.bytes = 1;
if (RQ.length < FBU.bytes) {
//Util.Debug(" waiting for HEXTILE subencoding byte");
return false;
}
subencoding = RQ[0]; // Peek
if (subencoding > 30) { // Raw
updateState('failed',
"Disconnected: illegal hextile subencoding " + subencoding);
//Util.Debug("RQ.slice(0,30):" + RQ.slice(0,30));
return false;
}
subrects = 0;
cur_tile = FBU.total_tiles - FBU.tiles;
tile_x = cur_tile % FBU.tiles_x;
tile_y = Math.floor(cur_tile / FBU.tiles_x);
x = FBU.x + tile_x * 16;
y = FBU.y + tile_y * 16;
w = Math.min(16, (FBU.x + FBU.width) - x);
h = Math.min(16, (FBU.y + FBU.height) - y);
try {
RFB.decode_message(e.data);
if (RFB.RQ.length > 0) {
RFB.handle_message();
/* Figure out how much we are expecting */
if (subencoding & 0x01) { // Raw
//Util.Debug(" Raw subencoding");
FBU.bytes += w * h * fb_Bpp;
} else {
Util.Debug("Ignoring empty message");
if (subencoding & 0x02) { // Background
FBU.bytes += fb_Bpp;
}
} 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 (subencoding & 0x04) { // Foreground
FBU.bytes += fb_Bpp;
}
if (typeof exc.name !== 'undefined') {
RFB.updateState('failed', exc.name + ": " + exc.message);
if (subencoding & 0x08) { // AnySubrects
FBU.bytes += 1; // Since we aren't shifting it off
if (RQ.length < FBU.bytes) {
/* Wait for subrects byte */
//Util.Debug(" waiting for hextile subrects header byte");
return false;
}
subrects = RQ[FBU.bytes-1]; // Peek
if (subencoding & 0x10) { // SubrectsColoured
FBU.bytes += subrects * (fb_Bpp + 2);
} else {
RFB.updateState('failed', exc);
FBU.bytes += subrects * 2;
}
}
}
//Util.Debug("<< recv_message");
},
handle_message: function () {
//Util.Debug("RQ.slice(0,20): " + RFB.RQ.slice(0,20) + " (" + RFB.RQ.length + ")");
switch (RFB.state) {
case 'disconnected':
Util.Error("Got data while disconnected");
break;
case 'failed':
Util.Warn("Giving up!");
RFB.disconnect();
break;
case 'normal':
if ((RFB.state === 'normal') && (RFB.RQ.length > 0)) {
if (RFB.normal_msg()) {
// true means we can continue processing
Util.Debug("More data to process");
// Give other events a chance to run
setTimeout(RFB.handle_message, 10);
//Util.Debug(" tile:" + cur_tile + "/" + (FBU.total_tiles - 1) +
// ", subencoding:" + subencoding +
// "(last: " + FBU.lastsubencoding + "), subrects:" +
// subrects + ", tile:" + tile_x + "," + tile_y +
// " [" + x + "," + y + "]@" + w + "x" + h +
// ", d.length:" + RQ.length + ", bytes:" + FBU.bytes +
// " last:" + RQ.slice(FBU.bytes-10, FBU.bytes) +
// " next:" + RQ.slice(FBU.bytes-1, FBU.bytes+10));
if (RQ.length < FBU.bytes) {
//Util.Debug(" waiting for " +
// (FBU.bytes - RQ.length) + " hextile bytes");
return false;
}
/* We know the encoding and have a whole tile */
FBU.subencoding = RQ[0];
idx = 1;
if (FBU.subencoding === 0) {
if (FBU.lastsubencoding & 0x01) {
/* Weird: ignore blanks after RAW */
Util.Debug(" Ignoring blank after RAW");
} else {
canvas.fillRect(x, y, w, h, FBU.background);
}
break;
default:
RFB.init_msg();
break;
} else if (FBU.subencoding & 0x01) { // Raw
canvas.blitImage(x, y, w, h, RQ, idx);
} else {
if (FBU.subencoding & 0x02) { // Background
FBU.background = RQ.slice(idx, idx + fb_Bpp);
idx += fb_Bpp;
}
if (FBU.subencoding & 0x04) { // Foreground
FBU.foreground = RQ.slice(idx, idx + fb_Bpp);
idx += fb_Bpp;
}
},
send_string: function (str) {
//Util.Debug(">> send_string: " + str);
RFB.send_array(str.split('').map(
function (chr) { return chr.charCodeAt(0); } ) );
},
send_array: function (arr) {
//Util.Debug(">> send_array: " + arr);
RFB.encode_message(arr);
if (RFB.ws.bufferedAmount === 0) {
//Util.Debug("arr: " + arr);
//Util.Debug("RFB.SQ: " + RFB.SQ);
RFB.ws.send(RFB.SQ);
RFB.SQ = "";
tile = canvas.getTile(x, y, w, h, FBU.background);
if (FBU.subencoding & 0x08) { // AnySubrects
subrects = RQ[idx];
idx += 1;
for (s = 0; s < subrects; s += 1) {
if (FBU.subencoding & 0x10) { // SubrectsColoured
color = RQ.slice(idx, idx + fb_Bpp);
idx += fb_Bpp;
} else {
Util.Debug("Delaying send");
color = FBU.foreground;
}
},
xy = RQ[idx];
idx += 1;
sx = (xy >> 4);
sy = (xy & 0x0f);
DES: function (password, challenge) {
var i, passwd, response;
passwd = [];
response = challenge.slice();
for (i=0; i < password.length; i += 1) {
passwd.push(password.charCodeAt(i));
}
wh = RQ[idx];
idx += 1;
sw = (wh >> 4) + 1;
sh = (wh & 0x0f) + 1;
DES.setKeys(passwd);
DES.encrypt(response, 0, response, 0);
DES.encrypt(response, 8, response, 8);
return response;
},
canvas.setSubTile(tile, sx, sy, sw, sh, color);
}
}
canvas.putTile(tile);
}
RQ.shiftBytes(FBU.bytes);
FBU.lastsubencoding = FBU.subencoding;
FBU.bytes = 0;
FBU.tiles -= 1;
}
flushClient: function () {
if (RFB.mouse_arr.length > 0) {
//RFB.send_array(RFB.mouse_arr.concat(RFB.fbUpdateRequest(1)));
RFB.send_array(RFB.mouse_arr);
setTimeout(function() {
RFB.send_array(RFB.fbUpdateRequest(1));
}, 50);
if (FBU.tiles === 0) {
FBU.rects -= 1;
}
RFB.mouse_arr = [];
//Util.Debug("<< display_hextile");
return true;
} else {
};
encHandlers.TIGHT_PNG = function display_tight_png() {
//Util.Debug(">> display_tight_png");
var ctl, cmode, clength, getCLength, color, img;
//Util.Debug(" FBU.rects: " + FBU.rects);
//Util.Debug(" RQ.length: " + RQ.length);
//Util.Debug(" RQ.slice(0,20): " + RQ.slice(0,20));
FBU.bytes = 1; // compression-control byte
if (RQ.length < FBU.bytes) {
Util.Debug(" waiting for TIGHT compression-control byte");
return false;
}
},
checkEvents: function () {
var now;
if (RFB.state === 'normal') {
if (! RFB.flushClient()) {
now = new Date().getTime();
if (now > RFB.last_req + RFB.req_rate) {
RFB.last_req = now;
RFB.send_array(RFB.fbUpdateRequest(1));
}
// Get 'compact length' header and data size
getCLength = function (arr, offset) {
var header = 1, data = 0;
data += arr[offset + 0] & 0x7f;
if (arr[offset + 0] & 0x80) {
header += 1;
data += (arr[offset + 1] & 0x7f) << 7;
if (arr[offset + 1] & 0x80) {
header += 1;
data += arr[offset + 2] << 14;
}
}
setTimeout(RFB.checkEvents, RFB.check_rate);
},
keyPress: function (keysym, down) {
var arr;
arr = RFB.keyEvent(keysym, down);
arr = arr.concat(RFB.fbUpdateRequest(1));
RFB.send_array(arr);
},
return [header, data];
};
mouseButton: function(x, y, down, bmask) {
if (down) {
RFB.mouse_buttonMask |= bmask;
} else {
RFB.mouse_buttonMask ^= bmask;
ctl = RQ[0];
switch (ctl >> 4) {
case 0x08: cmode = "fill"; break;
case 0x09: cmode = "jpeg"; break;
case 0x0A: cmode = "png"; break;
default: throw("Illegal basic compression received, ctl: " + ctl);
}
switch (cmode) {
// fill uses fb_depth because TPIXELs drop the padding byte
case "fill": FBU.bytes += fb_depth; break; // TPIXEL
case "jpeg": FBU.bytes += 3; break; // max clength
case "png": FBU.bytes += 3; break; // max clength
}
RFB.mouse_arr = RFB.mouse_arr.concat( RFB.pointerEvent(x, y) );
RFB.flushClient();
},
mouseMove: function(x, y) {
//Util.Debug('>> mouseMove ' + x + "," + y);
RFB.mouse_arr = RFB.mouse_arr.concat( RFB.pointerEvent(x, y) );
},
clipboardCopyTo: function (text) {
Util.Debug(">> clipboardCopyTo stub");
// Stub
},
if (RQ.length < FBU.bytes) {
Util.Debug(" waiting for TIGHT " + cmode + " bytes");
return false;
}
externalUpdateState: function(state, msg) {
Util.Debug(">> externalUpdateState stub");
// Stub
},
//Util.Debug(" RQ.slice(0,20): " + RQ.slice(0,20) + " (" + RQ.length + ")");
//Util.Debug(" cmode: " + cmode);
/*
* Running states:
* disconnected - idle state
* normal - connected
*
* Page states:
* loaded - page load, equivalent to disconnected
* connect - starting initialization
* password - waiting for password
* failed - abnormal transition to disconnected
* fatal - failed to load page, or fatal error
*
* VNC initialization states:
* ProtocolVersion
* Security
* Authentication
* SecurityResult
* ServerInitialization
*/
updateState: function(state, statusMsg) {
var func, cmsg, oldstate = RFB.state;
if (state === oldstate) {
/* Already here, ignore */
Util.Debug("Already in state '" + state + "', ignoring.");
return;
// Determine FBU.bytes
switch (cmode) {
case "fill":
RQ.shift8(); // shift off ctl
color = RQ.shiftBytes(fb_depth);
canvas.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color);
break;
case "jpeg":
case "png":
clength = getCLength(RQ, 1);
FBU.bytes = 1 + clength[0] + clength[1]; // ctl + clength size + jpeg-data
if (RQ.length < FBU.bytes) {
Util.Debug(" waiting for TIGHT " + cmode + " bytes");
return false;
}
if (oldstate === 'fatal') {
Util.Error("Fatal error, cannot continue");
// We have everything, render it
//Util.Debug(" png, RQ.length: " + RQ.length + ", clength[0]: " + clength[0] + ", clength[1]: " + clength[1]);
RQ.shiftBytes(1 + clength[0]); // shift off ctl + compact length
img = new Image();
img.onload = scan_tight_imgs;
FBU.imgs.push([img, FBU.x, FBU.y]);
img.src = "data:image/" + cmode +
extract_data_uri(RQ.shiftBytes(clength[1]));
img = null;
break;
}
FBU.bytes = 0;
FBU.rects -= 1;
//Util.Debug(" ending RQ.length: " + RQ.length);
//Util.Debug(" ending RQ.slice(0,20): " + RQ.slice(0,20));
//Util.Debug("<< display_tight_png");
return true;
};
if ((state === 'failed') || (state === 'fatal')) {
func = Util.Error;
} else {
func = Util.Warn;
extract_data_uri = function(arr) {
//var i, stra = [];
//for (i=0; i< arr.length; i += 1) {
// stra.push(String.fromCharCode(arr[i]));
//}
//return "," + escape(stra.join(''));
return ";base64," + Base64.encode(arr);
};
scan_tight_imgs = function() {
var img, imgs, ctx;
ctx = canvas.getContext();
if (rfb_state === 'normal') {
imgs = FBU.imgs;
while ((imgs.length > 0) && (imgs[0][0].complete)) {
img = imgs.shift();
ctx.drawImage(img[0], img[1], img[2]);
}
setTimeout(scan_tight_imgs, scan_imgs_rate);
}
};
cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : "";
func("New state '" + state + "', was '" + oldstate + "'." + cmsg);
encHandlers.DesktopSize = function set_desktopsize() {
Util.Debug(">> set_desktopsize");
fb_width = FBU.width;
fb_height = FBU.height;
canvas.clear();
canvas.resize(fb_width, fb_height);
timing.fbu_rt_start = (new Date()).getTime();
// Send a new non-incremental request
send_array(fbUpdateRequest(0));
if ((oldstate === 'failed') && (state === 'disconnected')) {
// Do disconnect action, but stay in failed state.
RFB.state = 'failed';
} else {
RFB.state = state;
}
FBU.bytes = 0;
FBU.rects -= 1;
switch (state) {
case 'loaded':
case 'disconnected':
Util.Debug("<< set_desktopsize");
return true;
};
if (RFB.sendID) {
clearInterval(RFB.sendID);
RFB.sendID = null;
}
encHandlers.Cursor = function set_cursor() {
var x, y, w, h, pixelslength, masklength;
//Util.Debug(">> set_cursor");
x = FBU.x; // hotspot-x
y = FBU.y; // hotspot-y
w = FBU.width;
h = FBU.height;
if (RFB.ws) {
if (RFB.ws.readyState === WebSocket.OPEN) {
RFB.ws.close();
}
RFB.ws.onmessage = function (e) { return; };
}
pixelslength = w * h * fb_Bpp;
masklength = Math.floor((w + 7) / 8) * h;
if (Canvas.ctx) {
Canvas.stop();
if (! /__debug__$/i.test(document.location.href)) {
Canvas.clear();
}
if (RQ.length < (pixelslength + masklength)) {
//Util.Debug("waiting for cursor encoding bytes");
FBU.bytes = pixelslength + masklength;
return false;
}
RFB.show_timings();
//Util.Debug(" set_cursor, x: " + x + ", y: " + y + ", w: " + w + ", h: " + h);
break;
canvas.changeCursor(RQ.shiftBytes(pixelslength),
RQ.shiftBytes(masklength),
x, y, w, h);
FBU.bytes = 0;
FBU.rects -= 1;
case 'connect':
RFB.init_vars();
//Util.Debug("<< set_cursor");
return true;
};
if ((RFB.ws) && (RFB.ws.readyState === WebSocket.OPEN)) {
RFB.ws.close();
}
RFB.init_ws(); // onopen transitions to 'ProtocolVersion'
encHandlers.JPEG_quality_lo = function set_jpeg_quality() {
Util.Error("Server sent jpeg_quality pseudo-encoding");
};
break;
encHandlers.compress_lo = function set_compress_level() {
Util.Error("Server sent compress level pseudo-encoding");
};
/*
* Client message routines
*/
case 'password':
// Ignore password state by default
break;
pixelFormat = function() {
//Util.Debug(">> pixelFormat");
var arr;
arr = [0]; // msg-type
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(fb_Bpp * 8); // bits-per-pixel
arr.push8(fb_depth * 8); // depth
arr.push8(0); // little-endian
arr.push8(conf.true_color ? 1 : 0); // true-color
case 'normal':
if ((oldstate === 'disconnected') || (oldstate === 'failed')) {
Util.Error("Invalid transition from 'disconnected' or 'failed' to 'normal'");
}
arr.push16(255); // red-max
arr.push16(255); // green-max
arr.push16(255); // blue-max
arr.push8(0); // red-shift
arr.push8(8); // green-shift
arr.push8(16); // blue-shift
break;
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(0); // padding
//Util.Debug("<< pixelFormat");
return arr;
};
clientEncodings = function() {
//Util.Debug(">> clientEncodings");
var arr, i, encList = [];
case 'failed':
if (oldstate === 'disconnected') {
Util.Error("Invalid transition from 'disconnected' to 'failed'");
}
if (oldstate === 'normal') {
Util.Error("Error while connected.");
for (i=0; i<encodings.length; i += 1) {
if ((encodings[i][0] === "Cursor") &&
(! conf.local_cursor)) {
Util.Debug("Skipping Cursor pseudo-encoding");
} else {
//Util.Debug("Adding encoding: " + encodings[i][0]);
encList.push(encodings[i][1]);
}
if (oldstate === 'init') {
Util.Error("Error while initializing.");
}
if ((RFB.ws) && (RFB.ws.readyState === WebSocket.OPEN)) {
RFB.ws.close();
}
// Make sure we transition to disconnected
setTimeout(function() { RFB.updateState('disconnected'); }, 50);
arr = [2]; // msg-type
arr.push8(0); // padding
break;
arr.push16(encList.length); // encoding count
for (i=0; i < encList.length; i += 1) {
arr.push32(encList[i]);
}
//Util.Debug("<< clientEncodings: " + arr);
return arr;
};
fbUpdateRequest = function(incremental, x, y, xw, yw) {
//Util.Debug(">> fbUpdateRequest");
if (!x) { x = 0; }
if (!y) { y = 0; }
if (!xw) { xw = fb_width; }
if (!yw) { yw = fb_height; }
var arr;
arr = [3]; // msg-type
arr.push8(incremental);
arr.push16(x);
arr.push16(y);
arr.push16(xw);
arr.push16(yw);
//Util.Debug("<< fbUpdateRequest");
return arr;
};
default:
// Invalid state transition
keyEvent = function(keysym, down) {
//Util.Debug(">> keyEvent, keysym: " + keysym + ", down: " + down);
var arr;
arr = [4]; // msg-type
arr.push8(down);
arr.push16(0);
arr.push32(keysym);
//Util.Debug("<< keyEvent");
return arr;
};
}
pointerEvent = function(x, y) {
//Util.Debug(">> pointerEvent, x,y: " + x + "," + y +
// " , mask: " + mouse_buttonMask);
var arr;
arr = [5]; // msg-type
arr.push8(mouse_buttonMask);
arr.push16(x);
arr.push16(y);
//Util.Debug("<< pointerEvent");
return arr;
};
if ((oldstate === 'failed') && (state === 'disconnected')) {
// Leave the failed message
RFB.externalUpdateState(state);
} else {
RFB.externalUpdateState(state, statusMsg);
}
},
clientCutText = function(text) {
//Util.Debug(">> clientCutText");
var arr;
arr = [6]; // msg-type
arr.push8(0); // padding
arr.push8(0); // padding
arr.push8(0); // padding
arr.push32(text.length);
arr.pushStr(text);
//Util.Debug("<< clientCutText:" + arr);
return arr;
};
update_timings: function() {
var now, timing = RFB.timing, offset;
now = (new Date()).getTime();
timing.history.push([now,
timing.h_fbus,
timing.h_rects,
timing.h_bytes,
timing.h_pixels]);
timing.h_fbus = 0;
timing.h_rects = 0;
timing.h_bytes = 0;
timing.h_pixels = 0;
if ((RFB.state !== 'disconnected') && (RFB.state !== 'failed')) {
// Try for every second
offset = (now - timing.history_start) % 1000;
if (offset < 500) {
setTimeout(RFB.update_timings, 1000 - offset);
} else {
setTimeout(RFB.update_timings, 2000 - offset);
}
}
},
show_timings: function() {
var i, timing = RFB.timing, history, msg,
delta, tot_time = 0, tot_fbus = 0, tot_rects = 0,
tot_bytes = 0, tot_pixels = 0;
if (timing.history_start === 0) { return; }
//Util.Debug(">> show_timings");
RFB.update_timings(); // Final accumulate
msg = "\nTimings\n";
msg += " time: fbus,rects,bytes,pixels\n";
for (i=0; i < timing.history.length; i += 1) {
history = timing.history[i];
delta = ((history[0]-timing.history_start)/1000);
tot_time = delta;
tot_fbus += history[1];
tot_rects += history[2];
tot_bytes += history[3];
tot_pixels += history[4];
msg += " " + delta.toFixed(3);
msg += ": " + history.slice(1) + "\n";
}
msg += "\nTotals:\n";
msg += " time: fbus,rects,bytes,pixels\n";
msg += " " + tot_time.toFixed(3);
msg += ": " + tot_fbus + "," + tot_rects;
msg += "," + tot_bytes + "," + tot_pixels;
Util.Info(msg);
//Util.Debug("<< show_timings");
},
//
// Public API interface functions
//
/*
* Setup routines
*/
that.init = function () {
init_ws: function () {
//Util.Debug(">> init_ws");
init_vars();
var uri = "", vars = [];
if (RFB.encrypt) {
uri = "wss://";
/* Check web-socket-js if no builtin WebSocket support */
if (VNC_native_ws) {
Util.Info("Using native WebSockets");
updateState('loaded', 'noVNC ready (using native WebSockets)');
} else {
uri = "ws://";
}
uri += RFB.host + ":" + RFB.port + "/";
if (RFB.b64encode) {
vars.push("b64encode");
Util.Warn("Using web-socket-js flash bridge");
if ((! Util.Flash) ||
(Util.Flash.version < 9)) {
updateState('fatal', "WebSockets or Adobe Flash is required");
} else if (document.location.href.substr(0, 7) === "file://") {
updateState('fatal',
"'file://' URL is incompatible with Adobe Flash");
} else {
updateState('loaded', 'noVNC ready (using Flash WebSockets emulation)');
}
if (vars.length > 0) {
uri += "?" + vars.join("&");
}
Util.Info("connecting to " + uri);
RFB.ws = new WebSocket(uri);
};
RFB.ws.onmessage = RFB.recv_message;
RFB.ws.onopen = function(e) {
Util.Debug(">> WebSocket.onopen");
if (RFB.state === "connect") {
RFB.updateState('ProtocolVersion', "Starting VNC handshake");
} else {
RFB.updateState('failed', "Got unexpected WebSockets connection");
}
Util.Debug("<< WebSocket.onopen");
};
RFB.ws.onclose = function(e) {
Util.Debug(">> WebSocket.onclose");
if (RFB.state === 'normal') {
RFB.updateState('failed', 'Server disconnected');
} else if (RFB.state === 'ProtocolVersion') {
RFB.updateState('failed', 'Failed to connect to server');
} else {
RFB.updateState('disconnected', 'VNC disconnected');
that.connect = function(host, port, password) {
//Util.Debug(">> connect");
// Make sure we have done init checks
if ((rfb_state !== 'loaded') && (rfb_state !== 'fatal')) {
that.init();
}
Util.Debug("<< WebSocket.onclose");
};
RFB.ws.onerror = function(e) {
Util.Debug(">> WebSocket.onerror");
RFB.updateState('failed', "WebSocket error");
Util.Debug("<< WebSocket.onerror");
};
setTimeout(function () {
if (RFB.ws.readyState === WebSocket.CONNECTING) {
RFB.updateState('failed', "Connect timeout");
rfb_host = host;
rfb_port = port;
rfb_password = (password !== undefined) ? password : "";
if ((!rfb_host) || (!rfb_port)) {
updateState('failed', "Must set host and port");
return;
}
}, RFB.connectTimeout);
//Util.Debug("<< init_ws");
},
updateState('connect');
//Util.Debug("<< connect");
init_vars: function () {
/* Reset state */
RFB.cuttext = 'none';
RFB.ct_length = 0;
RFB.RQ = [];
RFB.SQ = "";
RFB.FBU.rects = 0;
RFB.FBU.subrects = 0; // RRE and HEXTILE
RFB.FBU.lines = 0; // RAW
RFB.FBU.tiles = 0; // HEXTILE
RFB.FBU.imgs = []; // TIGHT_PNG image queue
RFB.mouse_buttonmask = 0;
RFB.mouse_arr = [];
RFB.timing.history_start = 0;
RFB.timing.history = [];
RFB.timing.h_fbus = 0;
RFB.timing.h_rects = 0;
RFB.timing.h_bytes = 0;
RFB.timing.h_pixels = 0;
}
};
that.disconnect = function() {
//Util.Debug(">> disconnect");
updateState('disconnected', 'Disconnected');
//Util.Debug("<< disconnect");
};
that.sendPassword = function(passwd) {
rfb_password = passwd;
rfb_state = "Authentication";
setTimeout(init_msg, 1);
};
that.sendCtrlAltDel = function() {
if (rfb_state !== "normal") { return false; }
Util.Info("Sending Ctrl-Alt-Del");
var arr = [];
arr = arr.concat(keyEvent(0xFFE3, 1)); // Control
arr = arr.concat(keyEvent(0xFFE9, 1)); // Alt
arr = arr.concat(keyEvent(0xFFFF, 1)); // Delete
arr = arr.concat(keyEvent(0xFFFF, 0)); // Delete
arr = arr.concat(keyEvent(0xFFE9, 0)); // Alt
arr = arr.concat(keyEvent(0xFFE3, 0)); // Control
arr = arr.concat(fbUpdateRequest(1));
send_array(arr);
};
that.clipboardPasteFrom = function(text) {
if (rfb_state !== "normal") { return; }
//Util.Debug(">> clipboardPasteFrom: " + text.substr(0,40) + "...");
send_array(clientCutText(text));
//Util.Debug("<< clipboardPasteFrom");
};
that.testMode = function(override_send_array) {
// Overridable internal functions for testing
test_mode = true;
send_array = override_send_array;
that.recv_message = recv_message; // Expose it
checkEvents = function () { /* Stub Out */ };
that.connect = function(host, port, password) {
rfb_host = host;
rfb_port = port;
rfb_password = password;
updateState('ProtocolVersion', "Starting VNC handshake");
};
};
return constructor(); // Return the public API interface
}; /* End of RFB */
} // End of RFB()
include/util.js
View file @ 8db09746
......@@ -14,41 +14,6 @@
var Util = {}, $;
/*
* Logging/debug routines
*/
Util.init_logging = function (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); };
break;
default:
throw("invalid logging type '" + level + "'");
}
};
// Initialize logging level
Util.init_logging( (document.location.href.match(
/logging=([A-Za-z0-9\._\-]*)/) ||
['', 'warn'])[1] );
/*
* Simple DOM selector by ID
*/
......@@ -138,6 +103,42 @@ Array.prototype.shiftBytes = function (len) {
* ------------------------------------------------------
*/
/*
* Logging/debug routines
*/
Util.init_logging = function (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 + "'");
}
};
// Initialize logging level
Util.init_logging( (document.location.href.match(
/logging=([A-Za-z0-9\._\-]*)/) ||
['', 'warn'])[1] );
Util.dirObj = function (obj, depth, parent) {
var i, msg = "", val = "";
if (! depth) { depth=2; }
......@@ -168,7 +169,7 @@ Util.getQueryVar = function(name, defVal) {
};
// Set defaults for Crockford style function namespaces
Util.conf_default = function(cfg, api, v, val) {
Util.conf_default = function(cfg, api, v, val, force_bool) {
if (typeof cfg[v] === 'undefined') {
cfg[v] = val;
}
......@@ -181,6 +182,13 @@ Util.conf_default = function(cfg, api, v, val) {
// Default setter
if (typeof api['set_' + v] === 'undefined') {
api['set_' + v] = function (val) {
if (force_bool) {
if ((!val) || (val in {'0':1, 'no':1, 'false':1})) {
val = false;
} else {
val = true;
}
}
cfg[v] = val;
};
}
......@@ -311,10 +319,9 @@ Util.createCookie = function(name,value,days) {
};
Util.readCookie = function(name, defaultValue) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
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); }
}
......@@ -330,7 +337,7 @@ Util.eraseCookie = function(name) {
*/
Util.getStylesheets = function() { var i, links, sheets = [];
links = document.getElementsByTagName("link");
for (i = 0; i < links.length; i++) {
for (i = 0; i < links.length; i += 1) {
if (links[i].title &&
links[i].rel.toUpperCase().indexOf("STYLESHEET") > -1) {
sheets.push(links[i]);
......@@ -346,19 +353,15 @@ Util.selectStylesheet = function(sheet) {
if (typeof sheet === 'undefined') {
sheet = 'default';
}
for (i=0; i < sheets.length; i++) {
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);
//Util.Debug("Skipping stylesheet " + link.title);
link.disabled = true;
}
}
return sheet;
};
// call once to disable alternates and get around webkit bug
Util.selectStylesheet(null);
tests/canvas.html
View file @ 8db09746
......@@ -46,14 +46,16 @@
}
function test_functions () {
var img, x, y;
Canvas.fillRect(0, 0, Canvas.c_wx, Canvas.c_wy, [240,240,240]);
var img, x, y, w, h, ctx = canvas.getContext();
w = canvas.get_width();
h = canvas.get_height();
canvas.fillRect(0, 0, w, h, [240,240,240]);
Canvas.blitStringImage("data:image/png;base64," + face64, 150, 10);
canvas.blitStringImage("data:image/png;base64," + face64, 150, 10);
var himg = new Image();
himg.onload = function () {
Canvas.ctx.drawImage(himg, 200, 40); };
ctx.drawImage(himg, 200, 40); };
himg.src = "face.png";
/* Test array image data */
......@@ -66,15 +68,14 @@
data[(y*50 + x)*4 + 3] = 255;
}
}
Canvas.blitImage(30, 10, 50, 50, data, 0);
canvas.blitImage(30, 10, 50, 50, data, 0);
//Canvas.prefer_js = false;
img = Canvas.getTile(5,5,16,16,[0,128,128]);
Canvas.putTile(img);
img = canvas.getTile(5,5,16,16,[0,128,128]);
canvas.putTile(img);
img = Canvas.getTile(90,15,16,16,[0,0,0]);
Canvas.setSubTile(img, 0,0,16,16,[128,128,0]);
Canvas.putTile(img);
img = canvas.getTile(90,15,16,16,[0,0,0]);
canvas.setSubTile(img, 0,0,16,16,[128,128,0]);
canvas.putTile(img);
}
function begin () {
......@@ -85,30 +86,35 @@
}
function start_delayed () {
var ret;
message("Running test: prefer Javascript");
Canvas.prefer_js = true;
ret = canvas.set_prefer_js(true);
if (ret) {
message("Running test: prefer Javascript ops");
var time1 = run_test();
message("prefer Javascript: " + time1 + "ms total, " +
message("prefer Javascript ops: " + time1 + "ms total, " +
(time1 / iterations) + "ms per frame");
} else {
message("Could not run: prefer Javascript ops");
}
canvas.set_prefer_js(false);
message("Running test: prefer Canvas ops");
Canvas.prefer_js = false;
var time2 = run_test();
message("prefer Canvas ops: " + time2 + "ms total, " +
(time2 / iterations) + "ms per frame");
Canvas.resize(start_width, start_height, true);
canvas.resize(start_width, start_height, true);
test_functions();
$('startButton').disabled = false;
$('startButton').value = "Start";
$('startButton').value = "Do Performance Test";
}
function run_test () {
var width, height;
width = $('width').value;
height = $('height').value;
Canvas.resize(width, height);
canvas.resize(width, height);
var color, start_time = (new Date()).getTime(), w, h;
for (var i=0; i < iterations; i++) {
color = [128, 128, (255 / iterations) * i, 0];
......@@ -116,9 +122,9 @@
for (var y=0; y < height; y = y + 16) {
w = Math.min(16, width - x);
h = Math.min(16, height - y);
var tile = Canvas.getTile(x, y, w, h, color);
Canvas.setSubTile(tile, 0, 0, w, h, color);
Canvas.putTile(tile);
var tile = canvas.getTile(x, y, w, h, color);
canvas.setSubTile(tile, 0, 0, w, h, color);
canvas.putTile(tile);
}
}
}
......@@ -129,8 +135,8 @@
window.onload = function() {
message("in onload");
$('iterations').value = 10;
Canvas.init('canvas');
Canvas.resize(start_width, start_height, true);
canvas = Canvas({'target' : 'canvas'});
canvas.resize(start_width, start_height, true);
message("Canvas initialized");
test_functions();
}
......
tests/cursor.html
View file @ 8db09746
......@@ -105,10 +105,10 @@
window.onload = function() {
debug("onload");
var cross, cursor, cursor64;
var canvas, cross, cursor, cursor64;
Canvas.init("testcanvas");
debug("Canvas.init() indicates Data URI cursor support is: " + Canvas.isCursor());
canvas = new Canvas({'target' : "testcanvas"});
debug("canvas indicates Data URI cursor support is: " + canvas.get_cursor_uri());
$('button1').style.cursor="url(face.png), default";
......
tests/input.html
View file @ 8db09746
......@@ -19,6 +19,7 @@
src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
-->
<script src="include/util.js"></script>
<script src="include/base64.js"></script>
<script src="include/canvas.js"></script>
<script>
var msg_cnt = 0;
......@@ -51,9 +52,9 @@
}
window.onload = function() {
Canvas.init('canvas');
Canvas.resize(width, height);
Canvas.start(keyPress, mouseButton, mouseMove);
var canvas = Canvas({'target' : 'canvas'});
canvas.resize(width, height, true);
canvas.start(keyPress, mouseButton, mouseMove);
message("Canvas initialized");
}
</script>
......
vnc.html
View file @ 8db09746
......@@ -16,12 +16,12 @@ noVNC example: simple example using default controls
<body>
<div id='vnc'>Loading</div>
</body>
<script>
window.onload = function () {
DefaultControls.load('vnc');
RFB.load();
}
};
</script>
</body>
</html>
vnc_auto.html
View file @ 8db09746
......@@ -7,8 +7,7 @@ Connect parameters are provided in query string:
<html>
<head>
<title>VNC Client</title>
<link rel="stylesheet" href="include/plain.css" TITLE="plain">
<link rel="Alternate StyleSheet" href="include/black.css" TITLE="Black">
<link rel="stylesheet" href="include/plain.css" title="plain">
<!--
<script type='text/javascript'
src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
......@@ -19,31 +18,36 @@ Connect parameters are provided in query string:
<body style="margin: 0px;">
<div id="VNC_screen">
<div id="VNC_status_bar" class="VNC_status_bar" style="margin-top: 0px;">
<table border=0 width=100%><tr>
<table border=0 width="100%"><tr>
<td><div id="VNC_status">Loading</div></td>
<td width=1%><div id="VNC_buttons">
<td width="1%"><div id="VNC_buttons">
<input type=button value="Send CtrlAltDel"
id="sendCtrlAltDelButton"
onclick="sendCtrlAltDel();"></div></td>
id="sendCtrlAltDelButton">
</div></td>
</tr></table>
</div>
<canvas id="VNC_canvas" width="640px" height="20px">
Canvas not supported.
</canvas>
</div>
</body>
<script>
/*jslint white: false */
/*global window, $, Util, RFB, */
"use strict";
var rfb;
function setPassword() {
RFB.sendPassword($('password_input').value);
rfb.sendPassword($('password_input').value);
return false;
}
function sendCtrlAltDel() {
RFB.sendCtrlAltDel();
rfb.sendCtrlAltDel();
return false;
}
function updateState(state, msg) {
var s, sb, klass, html;
function updateState(rfb, state, oldstate, msg) {
var s, sb, cad, klass;
s = $('VNC_status');
sb = $('VNC_status_bar');
cad = $('sendCtrlAltDelButton');
......@@ -64,8 +68,9 @@ Connect parameters are provided in query string:
msg += ' style="margin-bottom: 0px">';
msg += 'Password Required: ';
msg += '<input type=password size=10 id="password_input" class="VNC_status">';
msg += '</form>';
// Fall through
msg += '<\/form>';
klass = "VNC_status_warn";
break;
default:
klass = "VNC_status_warn";
}
......@@ -82,6 +87,8 @@ Connect parameters are provided in query string:
window.onload = function () {
var host, port, password;
$('sendCtrlAltDelButton').onclick = sendCtrlAltDel;
host = Util.getQueryVar('host', null);
port = Util.getQueryVar('port', null);
password = Util.getQueryVar('password', '');
......@@ -91,15 +98,15 @@ Connect parameters are provided in query string:
return;
}
RFB.setEncrypt(Util.getQueryVar('encrypt', true));
RFB.setBase64(Util.getQueryVar('base64', true));
RFB.setTrueColor(Util.getQueryVar('true_color', true));
RFB.setCursor(Util.getQueryVar('cursor', true));
RFB.setUpdateState(updateState);
RFB.load();
RFB.connect(host, port, password);
}
rfb = new RFB({'encrypt': Util.getQueryVar('encrypt', true),
'b64encode': Util.getQueryVar('base64', true),
'true_color': Util.getQueryVar('true_color', true),
'local_cursor': Util.getQueryVar('cursor', true),
'updateState': updateState});
rfb.connect(host, port, password);
};
</script>
</body>
</html>
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