VNC Client

From 8db09746b7b96da6bf48d0d7ef22f40df7205f7d Mon Sep 17 00:00:00 2001 From: Joel Martin Date: Mon, 2 Aug 2010 17:07:27 -0500 Subject: [PATCH] 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. --- README.md | 13 +- include/canvas.js | 821 +++++++------ include/default_controls.js | 78 +- include/rfb.js | 2224 ++++++++++++++++++----------------- include/util.js | 97 +- tests/canvas.html | 58 +- tests/cursor.html | 6 +- tests/input.html | 7 +- vnc.html | 10 +- vnc_auto.html | 53 +- 10 files changed, 1744 insertions(+), 1623 deletions(-) diff --git a/README.md b/README.md index 1ffbd12..4426c89 100644 --- a/README.md +++ b/README.md @@ -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: @@ -203,12 +203,13 @@ scripts and call their load() functions. For example:

+ + - See `vnc.html` and `vnc_auto.html` for examples. The file `include/plain.css` has a list of stylable elements. diff --git a/include/canvas.js b/include/canvas.js index b0f7b64..7b02b3e 100644 --- a/include/canvas.js +++ b/include/canvas.js @@ -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); +// 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; } - Util.stopEvent(e); - return false; -}, - + conf.prefer_js = val; + return true; +}; -onMouseMove: function (e) { - var evt, pos; - evt = (e ? e : window.event); - pos = Util.getEventPosition(e, $(Canvas.id), Canvas.scale); - //Util.Debug('mouse ' + evt.which + '/' + evt.button + ' up:' + pos.x + "," + pos.y); - if (Canvas.mouseMove) { - Canvas.mouseMove(pos.x, pos.y); +that.get_colourMap = function(idx) { + if (typeof idx === 'undefined') { + return conf.colourMap; + } else { + return conf.colourMap[idx]; } -}, +}; -onKeyDown: function (e) { - //Util.Debug("keydown: " + Canvas.getKeysym(e)); - if (! Canvas.focused) { - return true; - } - if (Canvas.keyPress) { - Canvas.keyPress(Canvas.getKeysym(e), 1); +that.set_colourMap = function(val, idx) { + if (typeof idx === 'undefined') { + conf.colourMap = val; + } else { + conf.colourMap[idx] = val; } - Util.stopEvent(e); - return false; -}, +}; + +// Add some other getters/setters +that.get_width = function() { + return c_width; +}; +that.get_height = function() { + return c_height; +}; -onKeyUp : function (e) { - //Util.Debug("keyup: " + Canvas.getKeysym(e)); - if (! Canvas.focused) { - return true; - } - if (Canvas.keyPress) { - Canvas.keyPress(Canvas.getKeysym(e), 0); - } - Util.stopEvent(e); - return false; -}, -onMouseDisable: function (e) { - var evt, pos; - if (! Canvas.focused) { - return true; - } - evt = (e ? e : window.event); - pos = Util.getPosition($(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; - } - //Util.Debug("mouse event not disabled"); - return true; -}, +// +// Private functions +// -init: function (id) { - var c, imgTest, tval, i, curDat, curSave; +// 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; } /* @@ -191,86 +150,267 @@ 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; - } catch (exc2) { + } catch (exc2) { Util.Error("Data URI scheme cursor test exception: " + exc2); 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); + + /* 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) -start: function (keyPress, mouseButton, mouseMove) { - var c; - Util.Debug(">> Canvas.start"); + 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; + } - c = $(Canvas.id); - Canvas.keyPress = keyPress || null; - Canvas.mouseButton = mouseButton || null; - Canvas.mouseMove = mouseMove || null; + return keysym; +} - 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); +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; +} - /* Work around right and middle click browser behaviors */ - Util.addEvent(document, 'click', Canvas.onMouseDisable); - Util.addEvent(document.body, 'contextmenu', Canvas.onMouseDisable); +function onMouseDown(e) { + onMouseButton(e, 1); +} - Util.Debug("<< Canvas.start"); -}, +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; +} + +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); + } +} -clear: function () { - Canvas.resize(640, 20); - Canvas.ctx.clearRect(0, 0, Canvas.c_wx, Canvas.c_wy); -}, +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; +} -resize: function (width, height, true_color) { - var c = $(Canvas.id); +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; +} - if (typeof true_color !== "undefined") { - Canvas.true_color = true_color; +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; +} - c.width = width; - c.height = height; +// +// 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() + diff --git a/include/default_controls.js b/include/default_controls.js index dd2e97d..3be50ed 100644 --- a/include/default_controls.js +++ b/include/default_controls.js @@ -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 += ' '; sheet = Util.selectStylesheet(); sheets = Util.getStylesheets(); - for (i = 0; i < sheets.length; i++) { + for (i = 0; i < sheets.length; i += 1) { html += ''; } html += ' Style'; @@ -69,7 +66,7 @@ load: function(target) { // Logging selection dropdown html += '

Logging

'; @@ -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); + DC.rfb = RFB({'target': 'VNC_canvas', + 'updateState': DC.updateState, + 'clipboardReceive': DC.clipReceive}); + DC.rfb.init(); + + // Unfocus clipboard when over the VNC area $('VNC_screen').onmousemove = function () { - // Unfocus clipboard when over the VNC area - if (! Canvas.focused) { + 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"); } diff --git a/include/rfb.js b/include/rfb.js index fee6f27..766f6eb 100644 --- a/include/rfb.js +++ b/include/rfb.js @@ -7,509 +7,890 @@ */ "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) { +function RFB(conf) { + +conf = conf || {}; // Configuration +var that = {}, // Public API interface + + // Pre-declare private functions used before definitions (jslint) + init_vars, updateState, init_msg, normal_msg, recv_message, + framebufferUpdate, show_timings, + + pixelFormat, clientEncodings, fbUpdateRequest, + keyEvent, pointerEvent, clientCutText, + + extract_data_uri, scan_tight_imgs, + + send_array, checkEvents, // Overridable for testing + + + // + // Private RFB namespace variables + // + rfb_host = '', + rfb_port = 5900, + rfb_password = '', + + rfb_state = 'disconnected', + rfb_version = 0, + rfb_max_version= 3.8, + rfb_auth_scheme= '', + rfb_shared = 1, + + + // In preference order + encodings = [ + ['COPYRECT', 0x01 ], + ['TIGHT_PNG', -260 ], + ['HEXTILE', 0x05 ], + ['RRE', 0x02 ], + ['RAW', 0x00 ], + ['DesktopSize', -223 ], + ['Cursor', -239 ], + + // Psuedo-encoding settings + ['JPEG_quality_lo', -32 ], + //['JPEG_quality_hi', -23 ], + ['compress_lo', -255 ] + //['compress_hi', -247 ] + ], + + encHandlers = {}, + encNames = {}, + + ws = null, // Web Socket object + canvas = null, // Canvas object + sendID = null, // Send Queue check timer + + // Receive and send queues + RQ = [], // Receive Queue + SQ = "", // Send Queue + + // Frame buffer update state + FBU = { + rects : 0, + subrects : 0, // RRE and HEXTILE + lines : 0, // RAW + tiles : 0, // HEXTILE + bytes : 0, + x : 0, + y : 0, + width : 0, + height : 0, + encoding : 0, + subencoding : -1, + background : null, + imgs : [] // TIGHT_PNG image queue + }, + + 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, + full_fbu_total : 0, + full_fbu_cnt : 0, + + fbu_rt_start : 0, + fbu_rt_total : 0, + fbu_rt_cnt : 0, + + history : [], + history_start : 0, + h_time : 0, + h_rects : 0, + h_fbus : 0, + h_bytes : 0, + h_pixels : 0 + }, + + test_mode = false, + + /* Mouse state */ + mouse_buttonMask = 0, + mouse_arr = []; + + +// +// Configuration settings +// + +// VNC viewport rendering Canvas +Util.conf_default(conf, that, 'target', 'VNC_canvas'); + +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})) { - RFB.local_cursor = false; + conf.local_cursor = false; } else { - if (Canvas.isCursor()) { - RFB.local_cursor = true; + if (canvas.get_cursor_uri()) { + conf.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); -}, +that.get_canvas = function() { + return canvas; +}; -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 () { + + + +// +// Private functions +// + +// +// Setup routines +// + +// Create the public API interface +function constructor() { var i; - //Util.Debug(">> load"); + //Util.Debug(">> init"); - /* 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)'); - } + // 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]; } - - // Initialize canvas/fxcanvas + // Initialize canvas try { - Canvas.init(RFB.canvasID); + canvas = new Canvas({'target': conf.target}); } catch (exc) { - RFB.updateState('fatal', "No working Canvas"); + Util.Error("Canvas exception: " + exc); + updateState('fatal', "No working Canvas"); } - // 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"); -}, - -connect: function (host, port, password) { - //Util.Debug(">> connect"); + //Util.Debug("<< init"); + return that; // Return the public API interface +} - RFB.host = host; - RFB.port = port; - RFB.password = (password !== undefined) ? password : ""; +function init_ws() { + //Util.Debug(">> init_ws"); - if ((!RFB.host) || (!RFB.port)) { - RFB.updateState('failed', "Must set host and port"); - return; + var uri = "", vars = []; + if (conf.encrypt) { + uri = "wss://"; + } else { + uri = "ws://"; + } + uri += rfb_host + ":" + rfb_port + "/"; + if (conf.b64encode) { + vars.push("b64encode"); } + if (vars.length > 0) { + uri += "?" + vars.join("&"); + } + Util.Info("connecting to " + uri); + ws = new WebSocket(uri); - RFB.updateState('connect'); - //Util.Debug("<< connect"); + ws.onmessage = recv_message; + ws.onopen = function(e) { + Util.Debug(">> WebSocket.onopen"); + if (rfb_state === "connect") { + updateState('ProtocolVersion', "Starting VNC handshake"); + } else { + updateState('failed', "Got unexpected WebSockets connection"); + } + 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'); + } + Util.Debug("<< WebSocket.onclose"); + }; + ws.onerror = function(e) { + Util.Debug(">> WebSocket.onerror"); + updateState('failed', "WebSocket error"); + Util.Debug("<< WebSocket.onerror"); + }; -}, + setTimeout(function () { + if (ws.readyState === WebSocket.CONNECTING) { + updateState('failed', "Connect timeout"); + } + }, conf.connectTimeout); -disconnect: function () { - //Util.Debug(">> disconnect"); - RFB.updateState('disconnected', 'Disconnected'); - //Util.Debug("<< disconnect"); -}, + //Util.Debug("<< init_ws"); +} -clipboardPasteFrom: function (text) { - if (RFB.state !== "normal") { return; } - //Util.Debug(">> clipboardPasteFrom: " + text.substr(0,40) + "..."); - RFB.send_array(RFB.clientCutText(text)); - //Util.Debug("<< clipboardPasteFrom"); -}, +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 +// /* - * Private variables and methods + * 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; + } -ws : null, // Web Socket object -sendID : null, -scanID : null, // TIGHT_PNG render image scanner - -// Receive and send queues -RQ : [], // Receive Queue -SQ : "", // Send Queue - -encHandlers : {}, -encNames : {}, - -// Frame buffer update state -FBU : { - rects : 0, - subrects : 0, // RRE and HEXTILE - lines : 0, // RAW - tiles : 0, // HEXTILE - bytes : 0, - x : 0, - y : 0, - width : 0, - height : 0, - encoding : 0, - 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 : { - last_fbu : 0, - fbu_total : 0, - fbu_total_cnt : 0, - full_fbu_total : 0, - full_fbu_cnt : 0, - - fbu_rt_start : 0, - fbu_rt_total : 0, - fbu_rt_cnt : 0, - - history : [], - history_start : 0, - h_time : 0, - h_rects : 0, - h_fbus : 0, - h_bytes : 0, - h_pixels : 0 -}, - -/* Mouse state */ -mouse_buttonmask : 0, -mouse_arr : [], + if (oldstate === 'fatal') { + Util.Error("Fatal error, cannot continue"); + } -/* - * Server message handlers - */ + if ((state === 'failed') || (state === 'fatal')) { + func = Util.Error; + } else { + func = Util.Warn; + } -/* RFB/VNC initialisation */ -init_msg: function () { - //Util.Debug(">> init_msg [RFB.state '" + RFB.state + "']"); + cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : ""; + func("New state '" + state + "', was '" + oldstate + "'." + cmsg); - var RQ = RFB.RQ, strlen, reason, reason_len, sversion, cversion, - i, types, num_types, challenge, response, bpp, depth, - big_endian, true_color, name_length; + if ((oldstate === 'failed') && (state === 'disconnected')) { + // Do disconnect action, but stay in failed state. + rfb_state = 'failed'; + } else { + rfb_state = state; + } - //Util.Debug("RQ (" + RQ.length + ") " + RQ); - switch (RFB.state) { + switch (state) { + case 'loaded': + case 'disconnected': - case 'ProtocolVersion' : - if (RQ.length < 12) { - RFB.updateState('failed', - "Disconnected: incomplete protocol version"); - return; + if (sendID) { + clearInterval(sendID); + sendID = null; } - 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; + + if (ws) { + if (ws.readyState === WebSocket.OPEN) { + ws.close(); + } + ws.onmessage = function (e) { return; }; } - if (RFB.version > RFB.max_version) { - RFB.version = RFB.max_version; + + if (canvas && canvas.getContext()) { + canvas.stop(); + if (! /__debug__$/i.test(document.location.href)) { + canvas.clear(); + } } - 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 = ""; - } - } else { - Util.Debug("Delaying send"); - } - }, 50); + show_timings(); - cversion = "00" + parseInt(RFB.version,10) + - ".00" + ((RFB.version * 10) % 10); - RFB.send_string("RFB " + cversion + "\n"); - RFB.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); - 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]; - } - } - if (RFB.auth_scheme === 0) { - RFB.updateState('failed', - "Disconnected: unsupported security types: " + types); - return; - } - - RFB.send_array([RFB.auth_scheme]); - } else { - if (RQ.length < 4) { - RFB.updateState('failed', "Invalid security frame"); - return; - } - RFB.auth_scheme = RQ.shift32(); - } - RFB.updateState('Authentication', - "Authenticating using scheme: " + RFB.auth_scheme); - // Fall through - 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; - } - 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 = 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; - } - break; + case 'connect': + init_vars(); - case 'SecurityResult' : - if (RQ.length < 4) { - RFB.updateState('failed', "Invalid VNC auth response"); - return; + if ((ws) && (ws.readyState === WebSocket.OPEN)) { + ws.close(); } - 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); - } else { - RFB.updateState('failed', "Authentication failed"); - } - return; - case 2: // too-many - RFB.updateState('failed', - "Disconnected: too many auth attempts"); - return; - } - RFB.send_array([RFB.shared]); // ClientInitialisation + init_ws(); // onopen transitions to 'ProtocolVersion' + break; - case 'ServerInitialisation' : - if (RQ.length < 24) { - RFB.updateState('failed', "Invalid server initialisation"); - return; - } - /* Screen size */ - RFB.fb_width = RQ.shift16(); - RFB.fb_height = RQ.shift16(); + case 'password': + // Ignore password state by default + break; - /* PIXEL_FORMAT */ - bpp = RQ.shift8(); - depth = RQ.shift8(); - big_endian = RQ.shift8(); - true_color = RQ.shift8(); - Util.Info("Screen: " + RFB.fb_width + "x" + RFB.fb_height + - ", bpp: " + bpp + ", depth: " + depth + - ", big_endian: " + big_endian + - ", true_color: " + true_color); + case 'normal': + if ((oldstate === 'disconnected') || (oldstate === 'failed')) { + Util.Error("Invalid transition from 'disconnected' or 'failed' to 'normal'"); + } - /* Connection name/title */ - RQ.shiftStr(12); - name_length = RQ.shift32(); - RFB.fb_name = RQ.shiftStr(name_length); + break; - Canvas.resize(RFB.fb_width, RFB.fb_height, RFB.true_color); - Canvas.start(RFB.keyPress, RFB.mouseButton, RFB.mouseMove); - if (RFB.true_color) { - RFB.fb_Bpp = 4; - RFB.fb_depth = 3; - } else { - RFB.fb_Bpp = 1; - RFB.fb_depth = 1; + 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."); } - 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); - - /* 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); + if ((ws) && (ws.readyState === WebSocket.OPEN)) { + ws.close(); } + // Make sure we transition to disconnected + setTimeout(function() { updateState('disconnected'); }, 50); + break; - } - //Util.Debug("<< init_msg"); -}, -/* Normal RFB/VNC server messages */ -normal_msg: function () { - //Util.Debug(">> normal_msg"); + default: + // Invalid state transition - 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') { + if ((oldstate === 'failed') && (state === 'disconnected')) { + // Leave the failed message + conf.updateState(that, state, oldstate); + } else { + conf.updateState(that, state, oldstate, statusMsg); + } +}; + +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); + } + } ).join(''); + } +} + +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); + } + } + //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); + } + break; + default: + init_msg(); + break; + } +} + +recv_message = function(e) { + //Util.Debug(">> recv_message"); + + try { + decode_message(e.data); + if (RQ.length > 0) { + handle_message(); + } else { + Util.Debug("Ignoring empty message"); + } + } catch (exc) { + if (typeof exc.stack !== 'undefined') { + Util.Warn("recv_message, caught exception: " + exc.stack); + } else if (typeof exc.description !== 'undefined') { + Util.Warn("recv_message, caught exception: " + exc.description); + } else { + Util.Warn("recv_message, caught exception:" + exc); + } + if (typeof exc.name !== 'undefined') { + updateState('failed', exc.name + ": " + exc.message); + } else { + updateState('failed', exc); + } + } + //Util.Debug("<< recv_message"); +}; + +// 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 { + Util.Debug("Delaying send"); + } +}; + +function send_string(str) { + //Util.Debug(">> send_string: " + str); + send_array(str.split('').map( + function (chr) { return chr.charCodeAt(0); } ) ); +} + +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)); + } + + DES.setKeys(passwd); + DES.encrypt(response, 0, response, 0); + DES.encrypt(response, 8, response, 8); + return response; +} + +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); + + mouse_arr = []; + return true; + } else { + return false; + } +} + +// 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)); + } + } + } + setTimeout(checkEvents, conf.check_rate); +}; + +function keyPress(keysym, down) { + var arr; + arr = keyEvent(keysym, down); + arr = arr.concat(fbUpdateRequest(1)); + send_array(arr); +} + +function mouseButton(x, y, down, bmask) { + if (down) { + mouse_buttonMask |= bmask; + } else { + mouse_buttonMask ^= bmask; + } + mouse_arr = mouse_arr.concat( pointerEvent(x, y) ); + flushClient(); +} + +function mouseMove(x, y) { + //Util.Debug('>> mouseMove ' + x + "," + y); + mouse_arr = mouse_arr.concat( pointerEvent(x, y) ); +} + + +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); + } + } +} + +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"; + } + 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"); +}; + +// +// Server message handlers +// + +// RFB/VNC initialisation message handler +init_msg = function() { + //Util.Debug(">> init_msg [rfb_state '" + rfb_state + "']"); + + 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; + } + 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; + } + + 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 { + Util.Debug("Delaying send"); + } + }, 50); + } + + 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; + } + 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; + } + + 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; + + 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); + 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 (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 + ")"); + + //Util.Debug("Sending DES encrypted auth response"); + send_array(response); + updateState('SecurityResult'); + break; + default: + updateState('failed', + "Disconnected: unsupported auth scheme: " + + rfb_auth_scheme); + return; + } + break; + + case 'SecurityResult' : + if (RQ.length < 4) { + updateState('failed', "Invalid VNC auth response"); + return; + } + 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"); + } + return; + case 2: // too-many + updateState('failed', + "Disconnected: too many auth attempts"); + return; + } + send_array([rfb_shared]); // ClientInitialisation + break; + + case 'ServerInitialisation' : + if (RQ.length < 24) { + updateState('failed', "Invalid server initialisation"); + return; + } + + /* Screen size */ + fb_width = RQ.shift16(); + fb_height = RQ.shift16(); + + /* 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); + + /* Connection name/title */ + RQ.shiftStr(12); + name_length = RQ.shift32(); + fb_name = RQ.shiftStr(name_length); + + 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; + } + + 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); + } + break; + } + //Util.Debug("<< init_msg"); +}; + + +/* Normal RFB/VNC server message handler */ +normal_msg = function() { + //Util.Debug(">> normal_msg"); + + 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 = RFB.framebufferUpdate(); // false means need more data + ret = framebufferUpdate(); // false means need more data break; case 1: // SetColourMapEntries Util.Debug("SetColourMapEntries"); @@ -523,10 +904,10 @@ normal_msg: function () { //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]; + canvas.set_colourMap([red, green, blue], first_colour + c); } Util.Info("Registered " + num_colours + " colourMap entries"); - //Util.Debug("colourMap: " + Canvas.colourMap); + //Util.Debug("colourMap: " + canvas.get_colourMap()); break; case 2: // Bell Util.Warn("Bell (unsupported)"); @@ -534,39 +915,37 @@ normal_msg: function () { case 3: // ServerCutText Util.Debug("ServerCutText"); Util.Debug("RQ:" + RQ.slice(0,20)); - if (RFB.cuttext === 'none') { - RFB.cuttext = 'header'; + if (cuttext === 'none') { + cuttext = 'header'; } - if (RFB.cuttext === 'header') { + if (cuttext === 'header') { if (RQ.length < 7) { //Util.Debug("waiting for ServerCutText header"); return false; } RQ.shiftBytes(3); // Padding - RFB.ct_length = RQ.shift32(); + cuttext_length = RQ.shift32(); } - RFB.cuttext = 'bytes'; - if (RQ.length < RFB.ct_length) { + cuttext = 'bytes'; + if (RQ.length < cuttext_length) { //Util.Debug("waiting for ServerCutText bytes"); return false; } - RFB.clipboardCopyTo(RQ.shiftStr(RFB.ct_length)); - RFB.cuttext = 'none'; + conf.clipboardReceive(that, RQ.shiftStr(cuttext_length)); + cuttext = 'none'; break; default: - RFB.updateState('failed', + updateState('failed', "Disconnected: illegal server message type " + msg_type); Util.Debug("RQ.slice(0,30):" + RQ.slice(0,30)); 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; +framebufferUpdate = function() { + var now, fbu_rt_diff, last_bytes, last_rects, ret = true; if (FBU.rects === 0) { //Util.Debug("New FBU: RQ.slice(0,20): " + RQ.slice(0,20)); @@ -588,7 +967,7 @@ framebufferUpdate: function() { } while (FBU.rects > 0) { - if (RFB.state !== "normal") { + if (rfb_state !== "normal") { return false; } if (RQ.length < FBU.bytes) { @@ -607,19 +986,19 @@ framebufferUpdate: function() { FBU.encoding = parseInt(RQ.shift32(), 10); timing.h_bytes += 12; - if (RFB.encNames[FBU.encoding]) { + 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 += "(" + RFB.encNames[FBU.encoding] + ")"; + msg += "(" + encNames[FBU.encoding] + ")"; msg += ", RQ.length: " + RQ.length; Util.Debug(msg); */ } else { - RFB.updateState('failed', + updateState('failed', "Disconnected: unsupported encoding " + FBU.encoding); return false; @@ -631,7 +1010,7 @@ framebufferUpdate: function() { last_rects = FBU.rects; // false ret means need more data - ret = RFB.encHandlers[FBU.encoding](); + ret = encHandlers[FBU.encoding](); now = (new Date()).getTime(); timing.cur_fbu += (now - timing.last_fbu); @@ -644,8 +1023,8 @@ framebufferUpdate: function() { } if (FBU.rects === 0) { - if (((FBU.width === RFB.fb_width) && - (FBU.height === RFB.fb_height)) || + 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; @@ -671,21 +1050,21 @@ framebufferUpdate: function() { } } return ret; -}, +}; -/* - * FramebufferUpdate encodings - */ +// +// FramebufferUpdate encodings +// -display_raw: function () { +encHandlers.RAW = function display_raw() { //Util.Debug(">> display_raw"); - var RQ = RFB.RQ, FBU = RFB.FBU, cur_y, cur_height; + var cur_y, cur_height; if (FBU.lines === 0) { FBU.lines = FBU.height; } - FBU.bytes = FBU.width * RFB.fb_Bpp; // At least a line + 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"); @@ -693,24 +1072,24 @@ display_raw: function () { } 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); + 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; if (FBU.lines > 0) { - FBU.bytes = FBU.width * RFB.fb_Bpp; // At least another line + FBU.bytes = FBU.width * fb_Bpp; // At least another line } else { FBU.rects -= 1; FBU.bytes = 0; } return true; -}, +}; -display_copy_rect: function () { +encHandlers.COPYRECT = function display_copy_rect() { //Util.Debug(">> display_copy_rect"); - var RQ = RFB.RQ, FBU = RFB.FBU, old_x, old_y; + var old_x, old_y; if (RQ.length < 4) { //Util.Debug(" waiting for " + @@ -719,52 +1098,52 @@ display_copy_rect: function () { } old_x = RQ.shift16(); old_y = RQ.shift16(); - Canvas.copyImage(old_x, old_y, FBU.x, FBU.y, FBU.width, FBU.height); + canvas.copyImage(old_x, old_y, FBU.x, FBU.y, FBU.width, FBU.height); FBU.rects -= 1; FBU.bytes = 0; return true; -}, +}; + +encHandlers.RRE = function display_rre() { + //Util.Debug(">> display_rre (" + RQ.length + " bytes)"); + var color, x, y, width, height, chunk; -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) { + if (RQ.length < 4 + fb_Bpp) { //Util.Debug(" waiting for " + - // (4 + RFB.fb_Bpp - RQ.length) + " RRE bytes"); + // (4 + 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); + color = RQ.shiftBytes(fb_Bpp); // Background + canvas.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color); } - while ((FBU.subrects > 0) && (RQ.length >= (RFB.fb_Bpp + 8))) { - color = RQ.shiftBytes(RFB.fb_Bpp); + 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); + 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; + chunk = Math.min(rre_chunk_sz, FBU.subrects); + FBU.bytes = (fb_Bpp + 8) * chunk; } else { FBU.rects -= 1; FBU.bytes = 0; } //Util.Debug("<< display_rre, FBU.bytes: " + FBU.bytes); return true; -}, +}; -display_hextile: function() { +encHandlers.HEXTILE = function display_hextile() { //Util.Debug(">> display_hextile"); - var RQ = RFB.RQ, FBU = RFB.FBU, - subencoding, subrects, idx, tile, color, cur_tile, + 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) { @@ -783,7 +1162,7 @@ display_hextile: function() { } subencoding = RQ[0]; // Peek if (subencoding > 30) { // Raw - RFB.updateState('failed', + updateState('failed', "Disconnected: illegal hextile subencoding " + subencoding); //Util.Debug("RQ.slice(0,30):" + RQ.slice(0,30)); return false; @@ -800,13 +1179,13 @@ display_hextile: function() { /* Figure out how much we are expecting */ if (subencoding & 0x01) { // Raw //Util.Debug(" Raw subencoding"); - FBU.bytes += w * h * RFB.fb_Bpp; + FBU.bytes += w * h * fb_Bpp; } else { if (subencoding & 0x02) { // Background - FBU.bytes += RFB.fb_Bpp; + FBU.bytes += fb_Bpp; } if (subencoding & 0x04) { // Foreground - FBU.bytes += RFB.fb_Bpp; + FBU.bytes += fb_Bpp; } if (subencoding & 0x08) { // AnySubrects FBU.bytes += 1; // Since we aren't shifting it off @@ -817,7 +1196,7 @@ display_hextile: function() { } subrects = RQ[FBU.bytes-1]; // Peek if (subencoding & 0x10) { // SubrectsColoured - FBU.bytes += subrects * (RFB.fb_Bpp + 2); + FBU.bytes += subrects * (fb_Bpp + 2); } else { FBU.bytes += subrects * 2; } @@ -846,28 +1225,28 @@ display_hextile: function() { /* Weird: ignore blanks after RAW */ Util.Debug(" Ignoring blank after RAW"); } else { - Canvas.fillRect(x, y, w, h, FBU.background); + canvas.fillRect(x, y, w, h, FBU.background); } } else if (FBU.subencoding & 0x01) { // Raw - Canvas.blitImage(x, y, w, h, RQ, idx); + 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; + FBU.background = RQ.slice(idx, idx + fb_Bpp); + idx += fb_Bpp; } if (FBU.subencoding & 0x04) { // Foreground - FBU.foreground = RQ.slice(idx, idx + RFB.fb_Bpp); - idx += RFB.fb_Bpp; + FBU.foreground = RQ.slice(idx, idx + fb_Bpp); + idx += fb_Bpp; } - tile = Canvas.getTile(x, y, w, h, FBU.background); + 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; + color = RQ.slice(idx, idx + fb_Bpp); + idx += fb_Bpp; } else { color = FBU.foreground; } @@ -881,10 +1260,10 @@ display_hextile: function() { sw = (wh >> 4) + 1; sh = (wh & 0x0f) + 1; - Canvas.setSubTile(tile, sx, sy, sw, sh, color); + canvas.setSubTile(tile, sx, sy, sw, sh, color); } } - Canvas.putTile(tile); + canvas.putTile(tile); } RQ.shiftBytes(FBU.bytes); FBU.lastsubencoding = FBU.subencoding; @@ -898,13 +1277,12 @@ display_hextile: function() { //Util.Debug("<< display_hextile"); return true; -}, +}; -display_tight_png: function() { +encHandlers.TIGHT_PNG = function display_tight_png() { //Util.Debug(">> display_tight_png"); - var RQ = RFB.RQ, FBU = RFB.FBU, - ctl, cmode, clength, getCLength, color, img; + 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)); @@ -940,7 +1318,7 @@ display_tight_png: function() { } switch (cmode) { // fill uses fb_depth because TPIXELs drop the padding byte - case "fill": FBU.bytes += RFB.fb_depth; break; // TPIXEL + case "fill": FBU.bytes += fb_depth; break; // TPIXEL case "jpeg": FBU.bytes += 3; break; // max clength case "png": FBU.bytes += 3; break; // max clength } @@ -950,15 +1328,15 @@ display_tight_png: function() { return false; } - //Util.Debug(" RQ.slice(0,20): " + RFB.RQ.slice(0,20) + " (" + RFB.RQ.length + ")"); + //Util.Debug(" RQ.slice(0,20): " + RQ.slice(0,20) + " (" + RQ.length + ")"); //Util.Debug(" cmode: " + cmode); // 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); + color = RQ.shiftBytes(fb_depth); + canvas.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color); break; case "jpeg": case "png": @@ -973,10 +1351,10 @@ display_tight_png: function() { //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; + img.onload = scan_tight_imgs; FBU.imgs.push([img, FBU.x, FBU.y]); img.src = "data:image/" + cmode + - RFB.extract_data_uri(RQ.shiftBytes(clength[1])); + extract_data_uri(RQ.shiftBytes(clength[1])); img = null; break; } @@ -986,643 +1364,293 @@ display_tight_png: function() { //Util.Debug(" ending RQ.slice(0,20): " + RQ.slice(0,20)); //Util.Debug("<< display_tight_png"); return true; -}, +}; -extract_data_uri : function (arr) { +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; - if (RFB.state === 'normal') { - imgs = RFB.FBU.imgs; +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(); - Canvas.ctx.drawImage(img[0], img[1], img[2]); - } - 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; - return false; - } - - //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; -}, - -set_jpeg_quality : function () { - Util.Debug(">> set_jpeg_quality"); -}, -set_compress_level: function () { - Util.Debug(">> set_compress_level"); -}, - -/* - * Client message routines - */ - -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(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 - - 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 - - arr.push8(0); // padding - arr.push8(0); // padding - arr.push8(0); // padding - //Util.Debug("<< pixelFormat"); - return arr; -}, - -fixColourMapEntries: function () { -}, - -clientEncodings: function () { - //Util.Debug(">> clientEncodings"); - var arr, i, encList = []; - - for (i=0; i> 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; -}, - -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; -}, - -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; -}, - - -/* - * Utility routines - */ - -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); - } - } ).join(''); - } -}, - -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)); - } 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); - } - } - //Util.Debug(">> decode_message, RQ: " + RFB.RQ); -}, - -recv_message: function(e) { - //Util.Debug(">> recv_message"); - - try { - RFB.decode_message(e.data); - if (RFB.RQ.length > 0) { - RFB.handle_message(); - } else { - Util.Debug("Ignoring empty message"); - } - } catch (exc) { - if (typeof exc.stack !== 'undefined') { - Util.Warn("recv_message, caught exception: " + exc.stack); - } else if (typeof exc.description !== 'undefined') { - Util.Warn("recv_message, caught exception: " + exc.description); - } else { - Util.Warn("recv_message, caught exception:" + exc); - } - if (typeof exc.name !== 'undefined') { - RFB.updateState('failed', exc.name + ": " + exc.message); - } else { - RFB.updateState('failed', exc); - } - } - //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); - } - } - break; - default: - RFB.init_msg(); - break; - } -}, - -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 = ""; - } else { - Util.Debug("Delaying send"); - } -}, - -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)); - } - - DES.setKeys(passwd); - DES.encrypt(response, 0, response, 0); - DES.encrypt(response, 8, response, 8); - return response; -}, - -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); - - RFB.mouse_arr = []; - return true; - } else { - 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)); - } + ctx.drawImage(img[0], img[1], img[2]); } + setTimeout(scan_tight_imgs, scan_imgs_rate); } - 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); -}, - -mouseButton: function(x, y, down, bmask) { - if (down) { - RFB.mouse_buttonMask |= bmask; - } else { - RFB.mouse_buttonMask ^= bmask; - } - 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) ); -}, +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)); -clipboardCopyTo: function (text) { - Util.Debug(">> clipboardCopyTo stub"); - // Stub -}, + FBU.bytes = 0; + FBU.rects -= 1; -externalUpdateState: function(state, msg) { - Util.Debug(">> externalUpdateState stub"); - // Stub -}, + Util.Debug("<< set_desktopsize"); + return true; +}; -/* - * 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; - } +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 (oldstate === 'fatal') { - Util.Error("Fatal error, cannot continue"); - } + pixelslength = w * h * fb_Bpp; + masklength = Math.floor((w + 7) / 8) * h; - if ((state === 'failed') || (state === 'fatal')) { - func = Util.Error; - } else { - func = Util.Warn; + if (RQ.length < (pixelslength + masklength)) { + //Util.Debug("waiting for cursor encoding bytes"); + FBU.bytes = pixelslength + masklength; + return false; } - cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : ""; - func("New state '" + state + "', was '" + oldstate + "'." + cmsg); + //Util.Debug(" set_cursor, x: " + x + ", y: " + y + ", w: " + w + ", h: " + h); - if ((oldstate === 'failed') && (state === 'disconnected')) { - // Do disconnect action, but stay in failed state. - RFB.state = 'failed'; - } else { - RFB.state = state; - } + canvas.changeCursor(RQ.shiftBytes(pixelslength), + RQ.shiftBytes(masklength), + x, y, w, h); - switch (state) { - case 'loaded': - case 'disconnected': + FBU.bytes = 0; + FBU.rects -= 1; - if (RFB.sendID) { - clearInterval(RFB.sendID); - RFB.sendID = null; - } + //Util.Debug("<< set_cursor"); + return true; +}; - if (RFB.ws) { - if (RFB.ws.readyState === WebSocket.OPEN) { - RFB.ws.close(); - } - RFB.ws.onmessage = function (e) { return; }; - } +encHandlers.JPEG_quality_lo = function set_jpeg_quality() { + Util.Error("Server sent jpeg_quality pseudo-encoding"); +}; - if (Canvas.ctx) { - Canvas.stop(); - if (! /__debug__$/i.test(document.location.href)) { - Canvas.clear(); - } - } +encHandlers.compress_lo = function set_compress_level() { + Util.Error("Server sent compress level pseudo-encoding"); +}; - RFB.show_timings(); +/* + * Client message routines + */ - 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 'connect': - RFB.init_vars(); + 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 ((RFB.ws) && (RFB.ws.readyState === WebSocket.OPEN)) { - RFB.ws.close(); - } - RFB.init_ws(); // onopen transitions to 'ProtocolVersion' + arr.push8(0); // padding + arr.push8(0); // padding + arr.push8(0); // padding + //Util.Debug("<< pixelFormat"); + return arr; +}; - break; +clientEncodings = function() { + //Util.Debug(">> clientEncodings"); + var arr, i, encList = []; + for (i=0; i> 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; +}; - break; +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; +}; - 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."); - } +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; +}; - if ((RFB.ws) && (RFB.ws.readyState === WebSocket.OPEN)) { - RFB.ws.close(); - } - // Make sure we transition to disconnected - setTimeout(function() { RFB.updateState('disconnected'); }, 50); - break; +// +// Public API interface functions +// - default: - // Invalid state transition +that.init = function () { - } + init_vars(); - if ((oldstate === 'failed') && (state === 'disconnected')) { - // Leave the failed message - RFB.externalUpdateState(state); + /* 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 { - RFB.externalUpdateState(state, statusMsg); - } -}, - -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); + 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 { - setTimeout(RFB.update_timings, 2000 - offset); + updateState('loaded', 'noVNC ready (using Flash WebSockets emulation)'); } } -}, +}; -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]; +that.connect = function(host, port, password) { + //Util.Debug(">> connect"); - msg += " " + delta.toFixed(3); - msg += ": " + history.slice(1) + "\n"; + // Make sure we have done init checks + if ((rfb_state !== 'loaded') && (rfb_state !== 'fatal')) { + that.init(); } - 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"); -}, - -/* - * Setup routines - */ -init_ws: function () { - //Util.Debug(">> init_ws"); + rfb_host = host; + rfb_port = port; + rfb_password = (password !== undefined) ? password : ""; - var uri = "", vars = []; - if (RFB.encrypt) { - uri = "wss://"; - } else { - uri = "ws://"; - } - uri += RFB.host + ":" + RFB.port + "/"; - if (RFB.b64encode) { - vars.push("b64encode"); - } - if (vars.length > 0) { - uri += "?" + vars.join("&"); + if ((!rfb_host) || (!rfb_port)) { + updateState('failed', "Must set host and port"); + return; } - 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'); - } - Util.Debug("<< WebSocket.onclose"); - }; - RFB.ws.onerror = function(e) { - Util.Debug(">> WebSocket.onerror"); - RFB.updateState('failed', "WebSocket error"); - Util.Debug("<< WebSocket.onerror"); - }; + updateState('connect'); + //Util.Debug("<< connect"); - setTimeout(function () { - if (RFB.ws.readyState === WebSocket.CONNECTING) { - RFB.updateState('failed', "Connect timeout"); - } - }, RFB.connectTimeout); +}; - //Util.Debug("<< init_ws"); -}, +that.disconnect = function() { + //Util.Debug(">> disconnect"); + updateState('disconnected', 'Disconnected'); + //Util.Debug("<< disconnect"); +}; -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.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() diff --git a/include/util.js b/include/util.js index 938506a..a355f7b 100644 --- a/include/util.js +++ b/include/util.js @@ -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); - diff --git a/tests/canvas.html b/tests/canvas.html index e762acd..87e7781 100644 --- a/tests/canvas.html +++ b/tests/canvas.html @@ -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; + + ret = canvas.set_prefer_js(true); + if (ret) { + message("Running test: prefer Javascript ops"); + var time1 = run_test(); + message("prefer Javascript ops: " + time1 + "ms total, " + + (time1 / iterations) + "ms per frame"); + } else { + message("Could not run: prefer Javascript ops"); + } - message("Running test: prefer Javascript"); - Canvas.prefer_js = true; - var time1 = run_test(); - message("prefer Javascript: " + time1 + "ms total, " + - (time1 / iterations) + "ms per frame"); - + 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(); } diff --git a/tests/cursor.html b/tests/cursor.html index d244db1..81fba82 100644 --- a/tests/cursor.html +++ b/tests/cursor.html @@ -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"; diff --git a/tests/input.html b/tests/input.html index f89768e..43791ed 100644 --- a/tests/input.html +++ b/tests/input.html @@ -19,6 +19,7 @@ src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'> --> + diff --git a/vnc.html b/vnc.html index 9a4596a..9155964 100644 --- a/vnc.html +++ b/vnc.html @@ -16,12 +16,12 @@ noVNC example: simple example using default controls

- - + }; + + + diff --git a/vnc_auto.html b/vnc_auto.html index 1d37172..600b09f 100644 --- a/vnc_auto.html +++ b/vnc_auto.html @@ -7,8 +7,7 @@ Connect parameters are provided in query string: VNC Client - - +