diff --git a/webclients/novnc/LICENSE.txt b/webclients/novnc/LICENSE.txt index 755ace3..6a1131b 100644 --- a/webclients/novnc/LICENSE.txt +++ b/webclients/novnc/LICENSE.txt @@ -13,6 +13,8 @@ version 3 with the following exceptions (all LGPL-3 compatible): include/des.js : Various BSD style licenses + include/jsunzip.js : zlib/libpng license + include/web-socket-js/ : New BSD license. Source code at http://github.com/gimite/web-socket-js diff --git a/webclients/novnc/README.md b/webclients/novnc/README.md index 4672969..887c96c 100644 --- a/webclients/novnc/README.md +++ b/webclients/novnc/README.md @@ -3,20 +3,28 @@ ### Description -noVNC is a VNC client implemented using HTML5 technologies, -specifically Canvas and WebSockets (supports 'wss://' encryption). -noVNC is licensed under the -[LGPLv3](http://www.gnu.org/licenses/lgpl.html). +noVNC is a HTML5 VNC client that runs well in any modern browser +including mobile browsers (iPhone/iPad and Android). -Special thanks to [Sentry Data Systems](http://www.sentryds.com) for -sponsoring ongoing development of this project (and for employing me). +Notable commits, announcements and news are posted to +@noVNC There are many companies/projects that have integrated noVNC into -their products including: [Sentry Data Systems](http://www.sentryds.com), [Ganeti Web Manager](http://code.osuosl.org/projects/ganeti-webmgr), [Archipel](http://archipelproject.org), [openQRM](http://www.openqrm.com/), [OpenNode](http://www.opennodecloud.com/), [OpenStack](http://www.openstack.org), [Broadway (HTML5 GDK/GTK+ backend)](http://blogs.gnome.org/alexl/2011/03/15/gtk-html-backend-update/), [OpenNebula](http://opennebula.org/), [CloudSigma](http://www.cloudsigma.com/), [Zentyal (formerly eBox)](http://www.zentyal.org/), and [SlapOS](http://www.slapos.org). See [this wiki page](https://github.com/kanaka/noVNC/wiki/ProjectsCompanies-using-noVNC) for more info and links. +their products including: [Ganeti Web Manager](http://code.osuosl.org/projects/ganeti-webmgr), [Archipel](http://archipelproject.org), [openQRM](http://www.openqrm.com/), [OpenNode](http://www.opennodecloud.com/), [OpenStack](http://www.openstack.org), [Broadway (HTML5 GDK/GTK+ backend)](http://blogs.gnome.org/alexl/2011/03/15/gtk-html-backend-update/), [OpenNebula](http://opennebula.org/), [CloudSigma](http://www.cloudsigma.com/), [Zentyal (formerly eBox)](http://www.zentyal.org/), [SlapOS](http://www.slapos.org), [Intel MeshCentral](https://meshcentral.com), [Amahi](http://amahi.org), [Brightbox](http://brightbox.com/), [Foreman](http://theforeman.org) and [LibVNCServer](http://libvncserver.sourceforge.net). See [this wiki page](https://github.com/kanaka/noVNC/wiki/ProjectsCompanies-using-noVNC) for more info and links. -Notable commits, announcements and news are posted to -@noVNC +### Features + +* Supports all modern browsers including mobile (iOS, Android) +* Supported VNC encodings: raw, copyrect, rre, hextile, tight, tightPNG +* WebSocket SSL/TLS encryption (i.e. "wss://") support +* 24-bit true color and 8 bit colour mapped +* Supports desktop resize notification/pseudo-encoding +* Local or remote cursor +* Clipboard copy/paste +* Clipping or scolling modes for large remote screens +* Easy site integration and theming (3 example themes included) +* Licensed under the [LGPLv3](http://www.gnu.org/licenses/lgpl.html) ### Screenshots @@ -38,10 +46,8 @@ See more screenshots h a WebSockets emulator using Adobe Flash. iOS 4.2+ has built-in WebSocket support. -* Fast Javascript Engine: noVNC avoids using new Javascript - functionality so it will run on older browsers, but decode and - rendering happen in Javascript, so a slow Javascript engine will - mean noVNC is painfully slow. +* Fast Javascript Engine: this is not strictly a requirement, but + without a fast Javascript engine, noVNC might be painfully slow. * I maintain a more detailed browser compatibility list here. @@ -50,22 +56,9 @@ See more screenshots h ### Server Requirements Unless you are using a VNC server with support for WebSockets -connections (only my [fork of libvncserver](http://github.com/kanaka/libvncserver) -currently), you need to use a WebSockets to TCP socket proxy. There is -a python proxy included ('websockify'). One advantage of using the -proxy is that it has builtin support for SSL/TLS encryption (i.e. -"wss://"). - -There a few reasons why a proxy is required: - - 1. WebSockets is not a pure socket protocol. There is an initial HTTP - like handshake to allow easy hand-off by web servers and allow - some origin policy exchange. Also, each WebSockets frame begins - with 0 ('\x00') and ends with 255 ('\xff'). - - 2. Javascript itself does not have the ability to handle pure byte - arrays. The python proxy encodes the data as base64 so that the - Javascript client can decode the data as an integer array. +connections (such as [x11vnc/libvncserver](http://libvncserver.sourceforge.net/)), +you need to use a WebSockets to TCP socket proxy. There is +a python proxy included ('websockify'). ### Quick Start @@ -91,3 +84,19 @@ There a few reasons why a proxy is required: * [Troubleshooting noVNC](https://github.com/kanaka/noVNC/wiki/Troubleshooting) problems. +### Authors/Contributors + +* noVNC : Joel Martin (github.com/kanaka) + * New UI and Icons : Chris Gordon + * Original Logo : Michael Sersen + * tight encoding : Michael Tinglof (Mercuri.ca) + +* Included libraries: + * web-socket-js : Hiroshi Ichikawa (github.com/gimite/web-socket-js) + * as3crypto : Henri Torgemane (code.google.com/p/as3crypto) + * base64 : Martijn Pieters (Digital Creations 2), Samuel Sieb (sieb.net) + * jsunzip : Erik Moller (github.com/operasoftware/jsunzip), + * tinflate : Joergen Ibsen (ibsensoftware.com) + * DES : Dave Zimmerman (Widget Workshop), Jef Poskanzer (ACME Labs) + + diff --git a/webclients/novnc/include/base.css b/webclients/novnc/include/base.css index 0a62a1b..105984d 100644 --- a/webclients/novnc/include/base.css +++ b/webclients/novnc/include/base.css @@ -153,6 +153,7 @@ html { } #noVNC_controls { + display:none; margin-top:77px; right:12px; position:fixed; @@ -161,6 +162,23 @@ html { right:15px; } +#noVNC_description { + display:none; + position:fixed; + + margin-top:77px; + right:20px; + left:20px; + padding:15px; + color:#000; + background:#eee; /* default background for browsers without gradient support */ + + border:2px solid #E0E0E0; + -webkit-border-radius:10px; + -moz-border-radius:10px; + border-radius:10px; +} + #noVNC_clipboard { display:none; margin-top:77px; diff --git a/webclients/novnc/include/base64.js b/webclients/novnc/include/base64.js index c68b33a..e9b3c52 100644 --- a/webclients/novnc/include/base64.js +++ b/webclients/novnc/include/base64.js @@ -116,7 +116,7 @@ decode: function (data, offset) { padding = (data.charAt(i) === pad); // Skip illegal characters and whitespace if (c === -1) { - console.error("Illegal character '" + data.charCodeAt(i) + "'"); + console.error("Illegal character code " + data.charCodeAt(i) + " at position " + i); continue; } diff --git a/webclients/novnc/include/display.js b/webclients/novnc/include/display.js index 2cf262d..f2ecdba 100644 --- a/webclients/novnc/include/display.js +++ b/webclients/novnc/include/display.js @@ -20,7 +20,7 @@ var that = {}, // Public API methods c_forceCanvas = false, // Predefine function variables (jslint) - imageDataGet, rgbxImageData, cmapImageData, + imageDataGet, rgbImageData, bgrxImageData, cmapImageData, setFillColor, rescale, // The full frame buffer (logical canvas) size @@ -183,13 +183,13 @@ rescale = function(factor) { }; setFillColor = function(color) { - var rgb, newStyle; + var bgr, newStyle; if (conf.true_color) { - rgb = color; + bgr = color; } else { - rgb = conf.colourMap[color[0]]; + bgr = conf.colourMap[color[0]]; } - newStyle = "rgb(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + ")"; + newStyle = "rgb(" + bgr[2] + "," + bgr[1] + "," + bgr[0] + ")"; if (newStyle !== c_prevStyle) { c_ctx.fillStyle = newStyle; c_prevStyle = newStyle; @@ -386,10 +386,10 @@ that.getCleanDirtyReset = function() { // Translate viewport coordinates to absolute coordinates that.absX = function(x) { return x + viewport.x; -} +}; that.absY = function(y) { return y + viewport.y; -} +}; that.resize = function(width, height) { @@ -430,7 +430,7 @@ that.copyImage = function(old_x, old_y, new_x, new_y, w, h) { // Start updating a tile that.startTile = function(x, y, width, height, color) { - var data, rgb, red, green, blue, i; + var data, bgr, red, green, blue, i; tile_x = x; tile_y = y; if ((width === 16) && (height === 16)) { @@ -441,13 +441,13 @@ that.startTile = function(x, y, width, height, color) { data = tile.data; if (conf.prefer_js) { if (conf.true_color) { - rgb = color; + bgr = color; } else { - rgb = conf.colourMap[color[0]]; + bgr = conf.colourMap[color[0]]; } - red = rgb[0]; - green = rgb[1]; - blue = rgb[2]; + red = bgr[2]; + green = bgr[1]; + blue = bgr[0]; for (i = 0; i < (width * height * 4); i+=4) { data[i ] = red; data[i + 1] = green; @@ -461,18 +461,18 @@ that.startTile = function(x, y, width, height, color) { // Update sub-rectangle of the current tile that.subTile = function(x, y, w, h, color) { - var data, p, rgb, red, green, blue, width, j, i, xend, yend; + var data, p, bgr, red, green, blue, width, j, i, xend, yend; if (conf.prefer_js) { data = tile.data; width = tile.width; if (conf.true_color) { - rgb = color; + bgr = color; } else { - rgb = conf.colourMap[color[0]]; + bgr = conf.colourMap[color[0]]; } - red = rgb[0]; - green = rgb[1]; - blue = rgb[2]; + red = bgr[2]; + green = bgr[1]; + blue = bgr[0]; xend = x + w; yend = y + h; for (j = y; j < yend; j += 1) { @@ -492,12 +492,12 @@ that.subTile = function(x, y, w, h, color) { // Draw the current tile to the screen that.finishTile = function() { if (conf.prefer_js) { - c_ctx.putImageData(tile, tile_x - viewport.x, tile_y - viewport.y) + c_ctx.putImageData(tile, tile_x - viewport.x, tile_y - viewport.y); } // else: No-op, if not prefer_js then already done by setSubTile }; -rgbxImageData = function(x, y, width, height, arr, offset) { +rgbImageData = function(x, y, width, height, arr, offset) { var img, i, j, data, v = viewport; /* if ((x - v.x >= v.w) || (y - v.y >= v.h) || @@ -508,7 +508,7 @@ rgbxImageData = function(x, y, width, height, arr, offset) { */ img = c_ctx.createImageData(width, height); data = img.data; - for (i=0, j=offset; i < (width * height * 4); i=i+4, j=j+4) { + for (i=0, j=offset; i < (width * height * 4); i=i+4, j=j+3) { data[i ] = arr[j ]; data[i + 1] = arr[j + 1]; data[i + 2] = arr[j + 2]; @@ -517,16 +517,36 @@ rgbxImageData = function(x, y, width, height, arr, offset) { c_ctx.putImageData(img, x - v.x, y - v.y); }; +bgrxImageData = function(x, y, width, height, arr, offset) { + var img, i, j, data, v = viewport; + /* + if ((x - v.x >= v.w) || (y - v.y >= v.h) || + (x - v.x + width < 0) || (y - v.y + height < 0)) { + // Skipping because outside of viewport + return; + } + */ + img = c_ctx.createImageData(width, height); + data = img.data; + for (i=0, j=offset; i < (width * height * 4); i=i+4, j=j+4) { + data[i ] = arr[j + 2]; + data[i + 1] = arr[j + 1]; + data[i + 2] = arr[j ]; + data[i + 3] = 255; // Set Alpha + } + c_ctx.putImageData(img, x - v.x, y - v.y); +}; + cmapImageData = function(x, y, width, height, arr, offset) { - var img, i, j, data, rgb, cmap; + var img, i, j, data, bgr, cmap; img = c_ctx.createImageData(width, height); data = img.data; cmap = conf.colourMap; for (i=0, j=offset; i < (width * height * 4); i+=4, j+=1) { - rgb = cmap[arr[j]]; - data[i ] = rgb[0]; - data[i + 1] = rgb[1]; - data[i + 2] = rgb[2]; + bgr = cmap[arr[j]]; + data[i ] = bgr[2]; + data[i + 1] = bgr[1]; + data[i + 2] = bgr[0]; data[i + 3] = 255; // Set Alpha } c_ctx.putImageData(img, x - viewport.x, y - viewport.y); @@ -534,8 +554,17 @@ cmapImageData = function(x, y, width, height, arr, offset) { that.blitImage = function(x, y, width, height, arr, offset) { if (conf.true_color) { - rgbxImageData(x, y, width, height, arr, offset); + bgrxImageData(x, y, width, height, arr, offset); + } else { + cmapImageData(x, y, width, height, arr, offset); + } +}; + +that.blitRgbImage = function(x, y, width, height, arr, offset) { + if (conf.true_color) { + rgbImageData(x, y, width, height, arr, offset); } else { + // prolly wrong... cmapImageData(x, y, width, height, arr, offset); } }; diff --git a/webclients/novnc/include/input.js b/webclients/novnc/include/input.js index 3124d08..1dfe719 100644 --- a/webclients/novnc/include/input.js +++ b/webclients/novnc/include/input.js @@ -412,6 +412,26 @@ function onKeyUp(e) { return false; } +function allKeysUp() { + Util.Debug(">> Keyboard.allKeysUp"); + if (keyDownList.length > 0) { + Util.Info("Releasing pressed/down keys"); + } + var i, keysym, fevt = null; + for (i = keyDownList.length-1; i >= 0; i--) { + fevt = keyDownList.splice(i, 1)[0]; + keysym = fevt.keysym; + if (conf.onKeyPress && (keysym > 0)) { + Util.Debug("allKeysUp, keysym: " + keysym + + " (keyCode: " + fevt.keyCode + + ", which: " + fevt.which + ")"); + conf.onKeyPress(keysym, 0, fevt); + } + } + Util.Debug("<< Keyboard.allKeysUp"); + return; +} + // // Public API interface functions // @@ -424,6 +444,9 @@ that.grab = function() { Util.addEvent(c, 'keyup', onKeyUp); Util.addEvent(c, 'keypress', onKeyPress); + // Release (key up) if window loses focus + Util.addEvent(window, 'blur', allKeysUp); + //Util.Debug("<< Keyboard.grab"); }; @@ -434,6 +457,10 @@ that.ungrab = function() { Util.removeEvent(c, 'keydown', onKeyDown); Util.removeEvent(c, 'keyup', onKeyUp); Util.removeEvent(c, 'keypress', onKeyPress); + Util.removeEvent(window, 'blur', allKeysUp); + + // Release (key up) all keys that are in a down state + allKeysUp(); //Util.Debug(">> Keyboard.ungrab"); }; diff --git a/webclients/novnc/include/jsunzip.js b/webclients/novnc/include/jsunzip.js new file mode 100755 index 0000000..f815218 --- /dev/null +++ b/webclients/novnc/include/jsunzip.js @@ -0,0 +1,668 @@ +/* + * JSUnzip + * + * Copyright (c) 2011 by Erik Moller + * All Rights Reserved + * + * This software is provided 'as-is', without any express + * or implied warranty. In no event will the authors be + * held liable for any damages arising from the use of + * this software. + * + * Permission is granted to anyone to use this software + * for any purpose, including commercial applications, + * and to alter it and redistribute it freely, subject to + * the following restrictions: + * + * 1. The origin of this software must not be + * misrepresented; you must not claim that you + * wrote the original software. If you use this + * software in a product, an acknowledgment in + * the product documentation would be appreciated + * but is not required. + * + * 2. Altered source versions must be plainly marked + * as such, and must not be misrepresented as + * being the original software. + * + * 3. This notice may not be removed or altered from + * any source distribution. + */ + +var tinf; + +function JSUnzip() { + + this.getInt = function(offset, size) { + switch (size) { + case 4: + return (this.data.charCodeAt(offset + 3) & 0xff) << 24 | + (this.data.charCodeAt(offset + 2) & 0xff) << 16 | + (this.data.charCodeAt(offset + 1) & 0xff) << 8 | + (this.data.charCodeAt(offset + 0) & 0xff); + break; + case 2: + return (this.data.charCodeAt(offset + 1) & 0xff) << 8 | + (this.data.charCodeAt(offset + 0) & 0xff); + break; + default: + return this.data.charCodeAt(offset) & 0xff; + break; + } + }; + + this.getDOSDate = function(dosdate, dostime) { + var day = dosdate & 0x1f; + var month = ((dosdate >> 5) & 0xf) - 1; + var year = 1980 + ((dosdate >> 9) & 0x7f) + var second = (dostime & 0x1f) * 2; + var minute = (dostime >> 5) & 0x3f; + hour = (dostime >> 11) & 0x1f; + return new Date(year, month, day, hour, minute, second); + } + + this.open = function(data) { + this.data = data; + this.files = []; + + if (this.data.length < 22) + return { 'status' : false, 'error' : 'Invalid data' }; + var endOfCentralDirectory = this.data.length - 22; + while (endOfCentralDirectory >= 0 && this.getInt(endOfCentralDirectory, 4) != 0x06054b50) + --endOfCentralDirectory; + if (endOfCentralDirectory < 0) + return { 'status' : false, 'error' : 'Invalid data' }; + if (this.getInt(endOfCentralDirectory + 4, 2) != 0 || this.getInt(endOfCentralDirectory + 6, 2) != 0) + return { 'status' : false, 'error' : 'No multidisk support' }; + + var entriesInThisDisk = this.getInt(endOfCentralDirectory + 8, 2); + var centralDirectoryOffset = this.getInt(endOfCentralDirectory + 16, 4); + var globalCommentLength = this.getInt(endOfCentralDirectory + 20, 2); + this.comment = this.data.slice(endOfCentralDirectory + 22, endOfCentralDirectory + 22 + globalCommentLength); + + var fileOffset = centralDirectoryOffset; + + for (var i = 0; i < entriesInThisDisk; ++i) { + if (this.getInt(fileOffset + 0, 4) != 0x02014b50) + return { 'status' : false, 'error' : 'Invalid data' }; + if (this.getInt(fileOffset + 6, 2) > 20) + return { 'status' : false, 'error' : 'Unsupported version' }; + if (this.getInt(fileOffset + 8, 2) & 1) + return { 'status' : false, 'error' : 'Encryption not implemented' }; + + var compressionMethod = this.getInt(fileOffset + 10, 2); + if (compressionMethod != 0 && compressionMethod != 8) + return { 'status' : false, 'error' : 'Unsupported compression method' }; + + var lastModFileTime = this.getInt(fileOffset + 12, 2); + var lastModFileDate = this.getInt(fileOffset + 14, 2); + var lastModifiedDate = this.getDOSDate(lastModFileDate, lastModFileTime); + + var crc = this.getInt(fileOffset + 16, 4); + // TODO: crc + + var compressedSize = this.getInt(fileOffset + 20, 4); + var uncompressedSize = this.getInt(fileOffset + 24, 4); + + var fileNameLength = this.getInt(fileOffset + 28, 2); + var extraFieldLength = this.getInt(fileOffset + 30, 2); + var fileCommentLength = this.getInt(fileOffset + 32, 2); + + var relativeOffsetOfLocalHeader = this.getInt(fileOffset + 42, 4); + + var fileName = this.data.slice(fileOffset + 46, fileOffset + 46 + fileNameLength); + var fileComment = this.data.slice(fileOffset + 46 + fileNameLength + extraFieldLength, fileOffset + 46 + fileNameLength + extraFieldLength + fileCommentLength); + + if (this.getInt(relativeOffsetOfLocalHeader + 0, 4) != 0x04034b50) + return { 'status' : false, 'error' : 'Invalid data' }; + var localFileNameLength = this.getInt(relativeOffsetOfLocalHeader + 26, 2); + var localExtraFieldLength = this.getInt(relativeOffsetOfLocalHeader + 28, 2); + var localFileContent = relativeOffsetOfLocalHeader + 30 + localFileNameLength + localExtraFieldLength; + + this.files[fileName] = + { + 'fileComment' : fileComment, + 'compressionMethod' : compressionMethod, + 'compressedSize' : compressedSize, + 'uncompressedSize' : uncompressedSize, + 'localFileContent' : localFileContent, + 'lastModifiedDate' : lastModifiedDate + }; + + fileOffset += 46 + fileNameLength + extraFieldLength + fileCommentLength; + } + return { 'status' : true } + }; + + + this.read = function(fileName) { + var fileInfo = this.files[fileName]; + if (fileInfo) { + if (fileInfo.compressionMethod == 8) { + if (!tinf) { + tinf = new TINF(); + tinf.init(); + } + var result = tinf.uncompress(this.data, fileInfo.localFileContent); + if (result.status == tinf.OK) + return { 'status' : true, 'data' : result.data }; + else + return { 'status' : false, 'error' : result.error }; + } else { + return { 'status' : true, 'data' : this.data.slice(fileInfo.localFileContent, fileInfo.localFileContent + fileInfo.uncompressedSize) }; + } + } + return { 'status' : false, 'error' : "File '" + fileName + "' doesn't exist in zip" }; + }; + +}; + + + +/* + * tinflate - tiny inflate + * + * Copyright (c) 2003 by Joergen Ibsen / Jibz + * All Rights Reserved + * + * http://www.ibsensoftware.com/ + * + * This software is provided 'as-is', without any express + * or implied warranty. In no event will the authors be + * held liable for any damages arising from the use of + * this software. + * + * Permission is granted to anyone to use this software + * for any purpose, including commercial applications, + * and to alter it and redistribute it freely, subject to + * the following restrictions: + * + * 1. The origin of this software must not be + * misrepresented; you must not claim that you + * wrote the original software. If you use this + * software in a product, an acknowledgment in + * the product documentation would be appreciated + * but is not required. + * + * 2. Altered source versions must be plainly marked + * as such, and must not be misrepresented as + * being the original software. + * + * 3. This notice may not be removed or altered from + * any source distribution. + */ + +/* + * tinflate javascript port by Erik Moller in May 2011. + * emoller@opera.com + * + * read_bits() patched by mike@imidio.com to allow + * reading more then 8 bits (needed in some zlib streams) + */ + +"use strict"; + +function TINF() { + +this.OK = 0; +this.DATA_ERROR = (-3); +this.WINDOW_SIZE = 32768; + +/* ------------------------------ * + * -- internal data structures -- * + * ------------------------------ */ + +this.TREE = function() { + this.table = new Array(16); /* table of code length counts */ + this.trans = new Array(288); /* code -> symbol translation table */ +}; + +this.DATA = function(that) { + this.source = ''; + this.sourceIndex = 0; + this.tag = 0; + this.bitcount = 0; + + this.dest = []; + + this.history = []; + + this.ltree = new that.TREE(); /* dynamic length/symbol tree */ + this.dtree = new that.TREE(); /* dynamic distance tree */ +}; + +/* --------------------------------------------------- * + * -- uninitialized global data (static structures) -- * + * --------------------------------------------------- */ + +this.sltree = new this.TREE(); /* fixed length/symbol tree */ +this.sdtree = new this.TREE(); /* fixed distance tree */ + +/* extra bits and base tables for length codes */ +this.length_bits = new Array(30); +this.length_base = new Array(30); + +/* extra bits and base tables for distance codes */ +this.dist_bits = new Array(30); +this.dist_base = new Array(30); + +/* special ordering of code length codes */ +this.clcidx = [ + 16, 17, 18, 0, 8, 7, 9, 6, + 10, 5, 11, 4, 12, 3, 13, 2, + 14, 1, 15 +]; + +/* ----------------------- * + * -- utility functions -- * + * ----------------------- */ + +/* build extra bits and base tables */ +this.build_bits_base = function(bits, base, delta, first) +{ + var i, sum; + + /* build bits table */ + for (i = 0; i < delta; ++i) bits[i] = 0; + for (i = 0; i < 30 - delta; ++i) bits[i + delta] = Math.floor(i / delta); + + /* build base table */ + for (sum = first, i = 0; i < 30; ++i) + { + base[i] = sum; + sum += 1 << bits[i]; + } +} + +/* build the fixed huffman trees */ +this.build_fixed_trees = function(lt, dt) +{ + var i; + + /* build fixed length tree */ + for (i = 0; i < 7; ++i) lt.table[i] = 0; + + lt.table[7] = 24; + lt.table[8] = 152; + lt.table[9] = 112; + + for (i = 0; i < 24; ++i) lt.trans[i] = 256 + i; + for (i = 0; i < 144; ++i) lt.trans[24 + i] = i; + for (i = 0; i < 8; ++i) lt.trans[24 + 144 + i] = 280 + i; + for (i = 0; i < 112; ++i) lt.trans[24 + 144 + 8 + i] = 144 + i; + + /* build fixed distance tree */ + for (i = 0; i < 5; ++i) dt.table[i] = 0; + + dt.table[5] = 32; + + for (i = 0; i < 32; ++i) dt.trans[i] = i; +} + +/* given an array of code lengths, build a tree */ +this.build_tree = function(t, lengths, loffset, num) +{ + var offs = new Array(16); + var i, sum; + + /* clear code length count table */ + for (i = 0; i < 16; ++i) t.table[i] = 0; + + /* scan symbol lengths, and sum code length counts */ + for (i = 0; i < num; ++i) t.table[lengths[loffset + i]]++; + + t.table[0] = 0; + + /* compute offset table for distribution sort */ + for (sum = 0, i = 0; i < 16; ++i) + { + offs[i] = sum; + sum += t.table[i]; + } + + /* create code->symbol translation table (symbols sorted by code) */ + for (i = 0; i < num; ++i) + { + if (lengths[loffset + i]) t.trans[offs[lengths[loffset + i]]++] = i; + } +} + +/* ---------------------- * + * -- decode functions -- * + * ---------------------- */ + +/* get one bit from source stream */ +this.getbit = function(d) +{ + var bit; + + /* check if tag is empty */ + if (!d.bitcount--) + { + /* load next tag */ + d.tag = d.source[d.sourceIndex++] & 0xff; + d.bitcount = 7; + } + + /* shift bit out of tag */ + bit = d.tag & 0x01; + d.tag >>= 1; + + return bit; +} + +/* read a num bit value from a stream and add base */ +this.read_bits = function(d, num, base) +{ + if (!num) + return base; + + var val = 0; + while (d.bitcount < 24) { + d.tag = d.tag | (d.source[d.sourceIndex++] & 0xff) << d.bitcount; + d.bitcount += 8; + } + val = d.tag & (0xffff >> (16 - num)); + d.tag >>= num; + d.bitcount -= num; + return val + base; +} + +/* given a data stream and a tree, decode a symbol */ +this.decode_symbol = function(d, t) +{ + while (d.bitcount < 16) { + d.tag = d.tag | (d.source[d.sourceIndex++] & 0xff) << d.bitcount; + d.bitcount += 8; + } + + var sum = 0, cur = 0, len = 0; + do { + cur = 2 * cur + ((d.tag & (1 << len)) >> len); + + ++len; + + sum += t.table[len]; + cur -= t.table[len]; + + } while (cur >= 0); + + d.tag >>= len; + d.bitcount -= len; + + return t.trans[sum + cur]; +} + +/* given a data stream, decode dynamic trees from it */ +this.decode_trees = function(d, lt, dt) +{ + var code_tree = new this.TREE(); + var lengths = new Array(288+32); + var hlit, hdist, hclen; + var i, num, length; + + /* get 5 bits HLIT (257-286) */ + hlit = this.read_bits(d, 5, 257); + + /* get 5 bits HDIST (1-32) */ + hdist = this.read_bits(d, 5, 1); + + /* get 4 bits HCLEN (4-19) */ + hclen = this.read_bits(d, 4, 4); + + for (i = 0; i < 19; ++i) lengths[i] = 0; + + /* read code lengths for code length alphabet */ + for (i = 0; i < hclen; ++i) + { + /* get 3 bits code length (0-7) */ + var clen = this.read_bits(d, 3, 0); + + lengths[this.clcidx[i]] = clen; + } + + /* build code length tree */ + this.build_tree(code_tree, lengths, 0, 19); + + /* decode code lengths for the dynamic trees */ + for (num = 0; num < hlit + hdist; ) + { + var sym = this.decode_symbol(d, code_tree); + + switch (sym) + { + case 16: + /* copy previous code length 3-6 times (read 2 bits) */ + { + var prev = lengths[num - 1]; + for (length = this.read_bits(d, 2, 3); length; --length) + { + lengths[num++] = prev; + } + } + break; + case 17: + /* repeat code length 0 for 3-10 times (read 3 bits) */ + for (length = this.read_bits(d, 3, 3); length; --length) + { + lengths[num++] = 0; + } + break; + case 18: + /* repeat code length 0 for 11-138 times (read 7 bits) */ + for (length = this.read_bits(d, 7, 11); length; --length) + { + lengths[num++] = 0; + } + break; + default: + /* values 0-15 represent the actual code lengths */ + lengths[num++] = sym; + break; + } + } + + /* build dynamic trees */ + this.build_tree(lt, lengths, 0, hlit); + this.build_tree(dt, lengths, hlit, hdist); +} + +/* ----------------------------- * + * -- block inflate functions -- * + * ----------------------------- */ + +/* given a stream and two trees, inflate a block of data */ +this.inflate_block_data = function(d, lt, dt) +{ + // js optimization. + var ddest = d.dest; + var ddestlength = ddest.length; + + while (1) + { + var sym = this.decode_symbol(d, lt); + + /* check for end of block */ + if (sym == 256) + { + return this.OK; + } + + if (sym < 256) + { + ddest[ddestlength++] = sym; // ? String.fromCharCode(sym); + d.history.push(sym); + } else { + + var length, dist, offs; + var i; + + sym -= 257; + + /* possibly get more bits from length code */ + length = this.read_bits(d, this.length_bits[sym], this.length_base[sym]); + + dist = this.decode_symbol(d, dt); + + /* possibly get more bits from distance code */ + offs = d.history.length - this.read_bits(d, this.dist_bits[dist], this.dist_base[dist]); + + if (offs < 0) + throw ("Invalid zlib offset " + offs); + + /* copy match */ + for (i = offs; i < offs + length; ++i) { + //ddest[ddestlength++] = ddest[i]; + ddest[ddestlength++] = d.history[i]; + d.history.push(d.history[i]); + } + } + } +} + +/* inflate an uncompressed block of data */ +this.inflate_uncompressed_block = function(d) +{ + var length, invlength; + var i; + + if (d.bitcount > 7) { + var overflow = Math.floor(d.bitcount / 8); + d.sourceIndex -= overflow; + d.bitcount = 0; + d.tag = 0; + } + + /* get length */ + length = d.source[d.sourceIndex+1]; + length = 256*length + d.source[d.sourceIndex]; + + /* get one's complement of length */ + invlength = d.source[d.sourceIndex+3]; + invlength = 256*invlength + d.source[d.sourceIndex+2]; + + /* check length */ + if (length != (~invlength & 0x0000ffff)) return this.DATA_ERROR; + + d.sourceIndex += 4; + + /* copy block */ + for (i = length; i; --i) { + d.history.push(d.source[d.sourceIndex]); + d.dest[d.dest.length] = d.source[d.sourceIndex++]; + } + + /* make sure we start next block on a byte boundary */ + d.bitcount = 0; + + return this.OK; +} + +/* inflate a block of data compressed with fixed huffman trees */ +this.inflate_fixed_block = function(d) +{ + /* decode block using fixed trees */ + return this.inflate_block_data(d, this.sltree, this.sdtree); +} + +/* inflate a block of data compressed with dynamic huffman trees */ +this.inflate_dynamic_block = function(d) +{ + /* decode trees from stream */ + this.decode_trees(d, d.ltree, d.dtree); + + /* decode block using decoded trees */ + return this.inflate_block_data(d, d.ltree, d.dtree); +} + +/* ---------------------- * + * -- public functions -- * + * ---------------------- */ + +/* initialize global (static) data */ +this.init = function() +{ + /* build fixed huffman trees */ + this.build_fixed_trees(this.sltree, this.sdtree); + + /* build extra bits and base tables */ + this.build_bits_base(this.length_bits, this.length_base, 4, 3); + this.build_bits_base(this.dist_bits, this.dist_base, 2, 1); + + /* fix a special case */ + this.length_bits[28] = 0; + this.length_base[28] = 258; + + this.reset(); +} + +this.reset = function() +{ + this.d = new this.DATA(this); + delete this.header; +} + +/* inflate stream from source to dest */ +this.uncompress = function(source, offset) +{ + + var d = this.d; + var bfinal; + + /* initialise data */ + d.source = source; + d.sourceIndex = offset; + d.bitcount = 0; + + d.dest = []; + + // Skip zlib header at start of stream + if (typeof this.header == 'undefined') { + this.header = this.read_bits(d, 16, 0); + /* byte 0: 0x78, 7 = 32k window size, 8 = deflate */ + /* byte 1: check bits for header and other flags */ + } + + var blocks = 0; + + do { + + var btype; + var res; + + /* read final block flag */ + bfinal = this.getbit(d); + + /* read block type (2 bits) */ + btype = this.read_bits(d, 2, 0); + + /* decompress block */ + switch (btype) + { + case 0: + /* decompress uncompressed block */ + res = this.inflate_uncompressed_block(d); + break; + case 1: + /* decompress block with fixed huffman trees */ + res = this.inflate_fixed_block(d); + break; + case 2: + /* decompress block with dynamic huffman trees */ + res = this.inflate_dynamic_block(d); + break; + default: + return { 'status' : this.DATA_ERROR }; + } + + if (res != this.OK) return { 'status' : this.DATA_ERROR }; + blocks++; + + } while (!bfinal && d.sourceIndex < d.source.length); + + d.history = d.history.slice(-this.WINDOW_SIZE); + + return { 'status' : this.OK, 'data' : d.dest }; +} + +}; diff --git a/webclients/novnc/include/rfb.js b/webclients/novnc/include/rfb.js index b7aa3f6..75b9797 100644 --- a/webclients/novnc/include/rfb.js +++ b/webclients/novnc/include/rfb.js @@ -4,6 +4,9 @@ * Licensed under LGPL-3 (see LICENSE.txt) * * See README.md for usage and integration instructions. + * + * TIGHT decoder portion: + * (c) 2012 Michael Tinglof, Joe Balaz, Les Piech (Mercuri.ca) */ /*jslint white: false, browser: true, bitwise: false, plusplus: false */ @@ -23,7 +26,7 @@ var that = {}, // Public API methods pixelFormat, clientEncodings, fbUpdateRequest, fbUpdateRequests, keyEvent, pointerEvent, clientCutText, - extract_data_uri, scan_tight_imgQ, + getTightCLength, extract_data_uri, scan_tight_imgQ, keyPress, mouseButton, mouseMove, checkEvents, // Overridable for testing @@ -46,6 +49,7 @@ var that = {}, // Public API methods // In preference order encodings = [ ['COPYRECT', 0x01 ], + ['TIGHT', 0x07 ], ['TIGHT_PNG', -260 ], ['HEXTILE', 0x05 ], ['RRE', 0x02 ], @@ -54,10 +58,12 @@ var that = {}, // Public API methods ['Cursor', -239 ], // Psuedo-encoding settings - ['JPEG_quality_lo', -32 ], + //['JPEG_quality_lo', -32 ], + ['JPEG_quality_med', -26 ], //['JPEG_quality_hi', -23 ], - ['compress_lo', -255 ] - //['compress_hi', -247 ] + //['compress_lo', -255 ], + ['compress_hi', -247 ], + ['last_rect', -224 ] ], encHandlers = {}, @@ -87,7 +93,8 @@ var that = {}, // Public API methods encoding : 0, subencoding : -1, background : null, - imgQ : [] // TIGHT_PNG image queue + imgQ : [], // TIGHT_PNG image queue + zlibs : [] // TIGHT zlib streams }, fb_Bpp = 4, @@ -109,7 +116,8 @@ var that = {}, // Public API methods fbu_rt_start : 0, fbu_rt_total : 0, - fbu_rt_cnt : 0 + fbu_rt_cnt : 0, + pixels : 0 }, test_mode = false, @@ -131,6 +139,7 @@ Util.conf_defaults(conf, that, defaults, [ ['true_color', 'rw', 'bool', true, 'Request true color pixel data'], ['local_cursor', 'rw', 'bool', false, 'Request locally rendered cursor'], ['shared', 'rw', 'bool', true, 'Request shared mode'], + ['view_only', 'rw', 'bool', false, 'Disable client mouse/keyboard'], ['connectTimeout', 'rw', 'int', def_con_timeout, 'Time (s) to wait for connection'], ['disconnectTimeout', 'rw', 'int', 3, 'Time (s) to wait for disconnection'], @@ -224,7 +233,10 @@ function constructor() { fail("Got unexpected WebSockets connection"); } }); - ws.on('close', function() { + ws.on('close', function(e) { + if (e.code) { + Util.Info("Close code: " + e.code + ", reason: " + e.reason + ", wasClean: " + e.wasClean); + } if (rfb_state === 'disconnect') { updateState('disconnected', 'VNC disconnected'); } else if (rfb_state === 'ProtocolVersion') { @@ -266,14 +278,18 @@ function constructor() { function connect() { Util.Debug(">> RFB.connect"); - - var uri = ""; - if (conf.encrypt) { - uri = "wss://"; + var uri; + + if (typeof UsingSocketIO !== "undefined") { + uri = "http://" + rfb_host + ":" + rfb_port + "/" + rfb_path; } else { - uri = "ws://"; + if (conf.encrypt) { + uri = "wss://"; + } else { + uri = "ws://"; + } + uri += rfb_host + ":" + rfb_port + "/" + rfb_path; } - uri += rfb_host + ":" + rfb_port + "/" + rfb_path; Util.Info("connecting to " + uri); ws.open(uri); @@ -292,6 +308,7 @@ init_vars = function() { FBU.lines = 0; // RAW FBU.tiles = 0; // HEXTILE FBU.imgQ = []; // TIGHT_PNG image queue + FBU.zlibs = []; // TIGHT zlib encoders mouse_buttonMask = 0; mouse_arr = []; @@ -299,6 +316,12 @@ init_vars = function() { for (i=0; i < encodings.length; i+=1) { encStats[encodings[i][1]][0] = 0; } + + for (i=0; i < 4; i++) { + //FBU.zlibs[i] = new InflateStream(); + FBU.zlibs[i] = new TINF(); + FBU.zlibs[i].init(); + } }; // Print statistics @@ -565,6 +588,9 @@ checkEvents = function() { keyPress = function(keysym, down) { var arr; + + if (conf.view_only) { return; } // View only, skip keyboard events + arr = keyEvent(keysym, down); arr = arr.concat(fbUpdateRequests()); ws.send(arr); @@ -586,9 +612,12 @@ mouseButton = function(x, y, down, bmask) { return; } else { viewportDragging = false; + ws.send(fbUpdateRequests()); // Force immediate redraw } } + if (conf.view_only) { return; } // View only, skip mouse events + mouse_arr = mouse_arr.concat( pointerEvent(display.absX(x), display.absY(y)) ); flushClient(); @@ -611,6 +640,8 @@ mouseMove = function(x, y) { return; } + if (conf.view_only) { return; } // View only, skip mouse events + mouse_arr = mouse_arr.concat( pointerEvent(display.absX(x), display.absY(y)) ); }; @@ -641,8 +672,10 @@ init_msg = function() { switch (sversion) { case "003.003": rfb_version = 3.3; break; case "003.006": rfb_version = 3.3; break; // UltraVNC + case "003.889": rfb_version = 3.3; break; // Apple Remote Desktop case "003.007": rfb_version = 3.7; break; case "003.008": rfb_version = 3.8; break; + case "004.000": rfb_version = 3.8; break; // Intel AMT KVM default: return fail("Invalid server version " + sversion); } @@ -806,9 +839,25 @@ init_msg = function() { ", green_shift: " + green_shift + ", blue_shift: " + blue_shift); + if (big_endian !== 0) { + Util.Warn("Server native endian is not little endian"); + } + if (red_shift !== 16) { + Util.Warn("Server native red-shift is not 16"); + } + if (blue_shift !== 0) { + Util.Warn("Server native blue-shift is not 0"); + } + /* Connection name/title */ name_length = ws.rQshift32(); fb_name = ws.rQshiftStr(name_length); + + if (conf.true_color && fb_name === "Intel(r) AMT KVM") + { + Util.Warn("Intel AMT KVM only support 8/16 bit depths. Disabling true color"); + conf.true_color = false; + } display.set_true_color(conf.true_color); display.resize(fb_width, fb_height); @@ -865,6 +914,8 @@ normal_msg = function() { ws.rQshift8(); // Padding first_colour = ws.rQshift16(); // First colour num_colours = ws.rQshift16(); + if (ws.rQwait("SetColourMapEntries", num_colours*6, 6)) { return false; } + for (c=0; c < num_colours; c+=1) { red = ws.rQshift16(); //Util.Debug("red before: " + red); @@ -872,7 +923,7 @@ normal_msg = function() { //Util.Debug("red after: " + red); green = parseInt(ws.rQshift16() / 256, 10); blue = parseInt(ws.rQshift16() / 256, 10); - display.set_colourMap([red, green, blue], first_colour + c); + display.set_colourMap([blue, green, red], first_colour + c); } Util.Debug("colourMap: " + display.get_colourMap()); Util.Info("Registered " + num_colours + " colourMap entries"); @@ -973,9 +1024,10 @@ framebufferUpdate = function() { if (ret) { encStats[FBU.encoding][0] += 1; encStats[FBU.encoding][1] += 1; + timing.pixels += FBU.width * FBU.height; } - if (FBU.rects === 0) { + if (FBU.rects === 0 || (timing.pixels >= (fb_width * fb_height))) { if (((FBU.width === fb_width) && (FBU.height === fb_height)) || (timing.fbu_rt_start > 0)) { @@ -1226,42 +1278,197 @@ encHandlers.HEXTILE = function display_hextile() { }; -encHandlers.TIGHT_PNG = function display_tight_png() { - //Util.Debug(">> display_tight_png"); - var ctl, cmode, clength, getCLength, color, img; - //Util.Debug(" FBU.rects: " + FBU.rects); - //Util.Debug(" starting ws.rQslice(0,20): " + ws.rQslice(0,20) + " (" + ws.rQlen() + ")"); +// Get 'compact length' header and data size +getTightCLength = function (arr) { + var header = 1, data = 0; + data += arr[0] & 0x7f; + if (arr[0] & 0x80) { + header += 1; + data += (arr[1] & 0x7f) << 7; + if (arr[1] & 0x80) { + header += 1; + data += arr[2] << 14; + } + } + return [header, data]; +}; + +function display_tight(isTightPNG) { + //Util.Debug(">> display_tight"); + + if (fb_depth === 1) { + fail("Tight protocol handler only implements true color mode"); + } + + var ctl, cmode, clength, color, img, data; + var filterId = -1, resetStreams = 0, streamId = -1; + var rQ = ws.get_rQ(), rQi = ws.get_rQi(); FBU.bytes = 1; // compression-control byte if (ws.rQwait("TIGHT compression-control", FBU.bytes)) { return false; } - // Get 'compact length' header and data size - getCLength = function (arr) { - var header = 1, data = 0; - data += arr[0] & 0x7f; - if (arr[0] & 0x80) { - header += 1; - data += (arr[1] & 0x7f) << 7; - if (arr[1] & 0x80) { - header += 1; - data += arr[2] << 14; + var checksum = function(data) { + var sum=0, i; + for (i=0; i 65536) sum -= 65536; + } + return sum; + } + + var decompress = function(data) { + for (var i=0; i<4; i++) { + if ((resetStreams >> i) & 1) { + FBU.zlibs[i].reset(); + Util.Info("Reset zlib stream " + i); + } + } + var uncompressed = FBU.zlibs[streamId].uncompress(data, 0); + if (uncompressed.status !== 0) { + Util.Error("Invalid data in zlib stream"); + } + //Util.Warn("Decompressed " + data.length + " to " + + // uncompressed.data.length + " checksums " + + // checksum(data) + ":" + checksum(uncompressed.data)); + + return uncompressed.data; + } + + var handlePalette = function() { + var numColors = rQ[rQi + 2] + 1; + var paletteSize = numColors * fb_depth; + FBU.bytes += paletteSize; + if (ws.rQwait("TIGHT palette " + cmode, FBU.bytes)) { return false; } + + var bpp = (numColors <= 2) ? 1 : 8; + var rowSize = Math.floor((FBU.width * bpp + 7) / 8); + var raw = false; + if (rowSize * FBU.height < 12) { + raw = true; + clength = [0, rowSize * FBU.height]; + } else { + clength = getTightCLength(ws.rQslice(3 + paletteSize, + 3 + paletteSize + 3)); + } + FBU.bytes += clength[0] + clength[1]; + if (ws.rQwait("TIGHT " + cmode, FBU.bytes)) { return false; } + + // Shift ctl, filter id, num colors, palette entries, and clength off + ws.rQshiftBytes(3); + var palette = ws.rQshiftBytes(paletteSize); + ws.rQshiftBytes(clength[0]); + + if (raw) { + data = ws.rQshiftBytes(clength[1]); + } else { + data = decompress(ws.rQshiftBytes(clength[1])); + } + + // Convert indexed (palette based) image data to RGB + // TODO: reduce number of calculations inside loop + var dest = []; + var x, y, b, w, w1, dp, sp; + if (numColors === 2) { + w = Math.floor((FBU.width + 7) / 8); + w1 = Math.floor(FBU.width / 8); + for (y = 0; y < FBU.height; y++) { + for (x = 0; x < w1; x++) { + for (b = 7; b >= 0; b--) { + dp = (y*FBU.width + x*8 + 7-b) * 3; + sp = (data[y*w + x] >> b & 1) * 3; + dest[dp ] = palette[sp ]; + dest[dp+1] = palette[sp+1]; + dest[dp+2] = palette[sp+2]; + } + } + for (b = 7; b >= 8 - FBU.width % 8; b--) { + dp = (y*FBU.width + x*8 + 7-b) * 3; + sp = (data[y*w + x] >> b & 1) * 3; + dest[dp ] = palette[sp ]; + dest[dp+1] = palette[sp+1]; + dest[dp+2] = palette[sp+2]; + } + } + } else { + for (y = 0; y < FBU.height; y++) { + for (x = 0; x < FBU.width; x++) { + dp = (y*FBU.width + x) * 3; + sp = data[y*FBU.width + x] * 3; + dest[dp ] = palette[sp ]; + dest[dp+1] = palette[sp+1]; + dest[dp+2] = palette[sp+2]; + } } } - return [header, data]; - }; + + FBU.imgQ.push({ + 'type': 'rgb', + 'img': {'complete': true, 'data': dest}, + 'x': FBU.x, + 'y': FBU.y, + 'width': FBU.width, + 'height': FBU.height}); + return true; + } + + var handleCopy = function() { + var raw = false; + var uncompressedSize = FBU.width * FBU.height * fb_depth; + if (uncompressedSize < 12) { + raw = true; + clength = [0, uncompressedSize]; + } else { + clength = getTightCLength(ws.rQslice(1, 4)); + } + FBU.bytes = 1 + clength[0] + clength[1]; + if (ws.rQwait("TIGHT " + cmode, FBU.bytes)) { return false; } + + // Shift ctl, clength off + ws.rQshiftBytes(1 + clength[0]); + + if (raw) { + data = ws.rQshiftBytes(clength[1]); + } else { + data = decompress(ws.rQshiftBytes(clength[1])); + } + + FBU.imgQ.push({ + 'type': 'rgb', + 'img': {'complete': true, 'data': data}, + 'x': FBU.x, + 'y': FBU.y, + 'width': FBU.width, + 'height': FBU.height}); + return true; + } ctl = ws.rQpeek8(); - switch (ctl >> 4) { - case 0x08: cmode = "fill"; break; - case 0x09: cmode = "jpeg"; break; - case 0x0A: cmode = "png"; break; - default: throw("Illegal basic compression received, ctl: " + ctl); + + // Keep tight reset bits + resetStreams = ctl & 0xF; + + // Figure out filter + ctl = ctl >> 4; + streamId = ctl & 0x3; + + if (ctl === 0x08) cmode = "fill"; + else if (ctl === 0x09) cmode = "jpeg"; + else if (ctl === 0x0A) cmode = "png"; + else if (ctl & 0x04) cmode = "filter"; + else if (ctl < 0x04) cmode = "copy"; + else throw("Illegal tight compression received, ctl: " + ctl); + + if (isTightPNG && (cmode === "filter" || cmode === "copy")) { + throw("filter/copy received in tightPNG mode"); } + switch (cmode) { // fill uses fb_depth because TPIXELs drop the padding byte - case "fill": FBU.bytes += fb_depth; break; // TPIXEL - case "jpeg": FBU.bytes += 3; break; // max clength - case "png": FBU.bytes += 3; break; // max clength + case "fill": FBU.bytes += fb_depth; break; // TPIXEL + case "jpeg": FBU.bytes += 3; break; // max clength + case "png": FBU.bytes += 3; break; // max clength + case "filter": FBU.bytes += 2; break; // filter id + num colors if palette + case "copy": break; } if (ws.rQwait("TIGHT " + cmode, FBU.bytes)) { return false; } @@ -1281,16 +1488,17 @@ encHandlers.TIGHT_PNG = function display_tight_png() { 'y': FBU.y, 'width': FBU.width, 'height': FBU.height, - 'color': color}); + 'color': [color[2], color[1], color[0]] }); break; - case "jpeg": case "png": - clength = getCLength(ws.rQslice(1, 4)); + case "jpeg": + clength = getTightCLength(ws.rQslice(1, 4)); FBU.bytes = 1 + clength[0] + clength[1]; // ctl + clength size + jpeg-data if (ws.rQwait("TIGHT " + cmode, FBU.bytes)) { return false; } // We have everything, render it - //Util.Debug(" png, ws.rQlen(): " + ws.rQlen() + ", clength[0]: " + clength[0] + ", clength[1]: " + clength[1]); + //Util.Debug(" jpeg, ws.rQlen(): " + ws.rQlen() + ", clength[0]: " + + // clength[0] + ", clength[1]: " + clength[1]); ws.rQshiftBytes(1 + clength[0]); // shift off ctl + compact length img = new Image(); //img.onload = scan_tight_imgQ; @@ -1303,13 +1511,27 @@ encHandlers.TIGHT_PNG = function display_tight_png() { extract_data_uri(ws.rQshiftBytes(clength[1])); img = null; break; + case "filter": + filterId = rQ[rQi + 1]; + if (filterId === 1) { + if (!handlePalette()) { return false; } + } else { + // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter + // Filter 2, Gradient is valid but not used if jpeg is enabled + throw("Unsupported tight subencoding received, filter: " + filterId); + } + break; + case "copy": + if (!handleCopy()) { return false; } + break; } + FBU.bytes = 0; FBU.rects -= 1; //Util.Debug(" ending ws.rQslice(0,20): " + ws.rQslice(0,20) + " (" + ws.rQlen() + ")"); //Util.Debug("<< display_tight_png"); return true; -}; +} extract_data_uri = function(arr) { //var i, stra = []; @@ -1327,8 +1549,10 @@ scan_tight_imgQ = function() { imgQ = FBU.imgQ; while ((imgQ.length > 0) && (imgQ[0].img.complete)) { data = imgQ.shift(); - if (data['type'] === 'fill') { + if (data.type === 'fill') { display.fillRect(data.x, data.y, data.width, data.height, data.color); + } else if (data.type === 'rgb') { + display.blitRgbImage(data.x, data.y, data.width, data.height, data.img.data, 0); } else { ctx.drawImage(data.img, data.x, data.y); } @@ -1337,6 +1561,16 @@ scan_tight_imgQ = function() { } }; +encHandlers.TIGHT = function () { return display_tight(false); }; +encHandlers.TIGHT_PNG = function () { return display_tight(true); }; + +encHandlers.last_rect = function last_rect() { + Util.Debug(">> set_desktopsize"); + FBU.rects = 0; + Util.Debug("<< set_desktopsize"); + return true; +}; + encHandlers.DesktopSize = function set_desktopsize() { Util.Debug(">> set_desktopsize"); fb_width = FBU.width; @@ -1408,9 +1642,9 @@ pixelFormat = function() { arr.push16(255); // red-max arr.push16(255); // green-max arr.push16(255); // blue-max - arr.push8(0); // red-shift + arr.push8(16); // red-shift arr.push8(8); // green-shift - arr.push8(16); // blue-shift + arr.push8(0); // blue-shift arr.push8(0); // padding arr.push8(0); // padding @@ -1556,7 +1790,7 @@ that.sendPassword = function(passwd) { }; that.sendCtrlAltDel = function() { - if (rfb_state !== "normal") { return false; } + if (rfb_state !== "normal" || conf.view_only) { return false; } Util.Info("Sending Ctrl-Alt-Del"); var arr = []; arr = arr.concat(keyEvent(0xFFE3, 1)); // Control @@ -1572,7 +1806,7 @@ that.sendCtrlAltDel = function() { // Send a key press. If 'down' is not specified then send a down key // followed by an up key. that.sendKey = function(code, down) { - if (rfb_state !== "normal") { return false; } + if (rfb_state !== "normal" || conf.view_only) { return false; } var arr = []; if (typeof down !== 'undefined') { Util.Info("Sending key code (" + (down ? "down" : "up") + "): " + code); diff --git a/webclients/novnc/include/ui.js b/webclients/novnc/include/ui.js index 74a0005..eddfa6c 100644 --- a/webclients/novnc/include/ui.js +++ b/webclients/novnc/include/ui.js @@ -14,7 +14,7 @@ var UI = { rfb_state : 'loaded', settingsOpen : false, -connSettingsOpen : true, +connSettingsOpen : false, clipboardOpen: false, keyboardVisible: false, @@ -45,15 +45,16 @@ load: function() { WebUtil.selectStylesheet(UI.getSetting('stylesheet')); /* Populate the controls if defaults are provided in the URL */ - UI.initSetting('host', ''); - UI.initSetting('port', ''); + UI.initSetting('host', window.location.hostname); + UI.initSetting('port', window.location.port); UI.initSetting('password', ''); - UI.initSetting('encrypt', false); + UI.initSetting('encrypt', (window.location.protocol === "https:")); UI.initSetting('true_color', true); UI.initSetting('cursor', false); UI.initSetting('shared', true); + UI.initSetting('view_only', false); UI.initSetting('connectTimeout', 2); - UI.initSetting('path', ''); + UI.initSetting('path', 'websockify'); UI.rfb = RFB({'target': $D('noVNC_canvas'), 'onUpdateState': UI.updateState, @@ -101,6 +102,14 @@ load: function() { } } ); + // Show description by default when hosted at for kanaka.github.com + if (location.host === "kanaka.github.com") { + // Open the description dialog + $D('noVNC_description').style.display = "block"; + } else { + // Open the connect panel on first load + UI.toggleConnectPanel(); + } }, // Read form control compatible setting from cookie @@ -188,17 +197,19 @@ forceSetting: function(name, val) { // Show the clipboard panel toggleClipboardPanel: function() { + // Close the description panel + $D('noVNC_description').style.display = "none"; //Close settings if open - if (UI.settingsOpen == true) { + if (UI.settingsOpen === true) { UI.settingsApply(); UI.closeSettingsMenu(); } //Close connection settings if open - if (UI.connSettingsOpen == true) { + if (UI.connSettingsOpen === true) { UI.toggleConnectPanel(); } //Toggle Clipboard Panel - if (UI.clipboardOpen == true) { + if (UI.clipboardOpen === true) { $D('noVNC_clipboard').style.display = "none"; $D('clipboardButton').className = "noVNC_status_button"; UI.clipboardOpen = false; @@ -211,18 +222,20 @@ toggleClipboardPanel: function() { // Show the connection settings panel/menu toggleConnectPanel: function() { + // Close the description panel + $D('noVNC_description').style.display = "none"; //Close connection settings if open - if (UI.settingsOpen == true) { + if (UI.settingsOpen === true) { UI.settingsApply(); UI.closeSettingsMenu(); $D('connectButton').className = "noVNC_status_button"; } - if (UI.clipboardOpen == true) { + if (UI.clipboardOpen === true) { UI.toggleClipboardPanel(); } //Toggle Connection Panel - if (UI.connSettingsOpen == true) { + if (UI.connSettingsOpen === true) { $D('noVNC_controls').style.display = "none"; $D('connectButton').className = "noVNC_status_button"; UI.connSettingsOpen = false; @@ -238,6 +251,8 @@ toggleConnectPanel: function() { // On open, settings are refreshed from saved cookies. // On close, settings are applied toggleSettingsPanel: function() { + // Close the description panel + $D('noVNC_description').style.display = "none"; if (UI.settingsOpen) { UI.settingsApply(); UI.closeSettingsMenu(); @@ -252,6 +267,7 @@ toggleSettingsPanel: function() { } UI.updateSetting('clip'); UI.updateSetting('shared'); + UI.updateSetting('view_only'); UI.updateSetting('connectTimeout'); UI.updateSetting('path'); UI.updateSetting('stylesheet'); @@ -263,11 +279,13 @@ toggleSettingsPanel: function() { // Open menu openSettingsMenu: function() { - if (UI.clipboardOpen == true) { + // Close the description panel + $D('noVNC_description').style.display = "none"; + if (UI.clipboardOpen === true) { UI.toggleClipboardPanel(); } //Close connection settings if open - if (UI.connSettingsOpen == true) { + if (UI.connSettingsOpen === true) { UI.toggleConnectPanel(); } $D('noVNC_settings').style.display = "block"; @@ -292,6 +310,7 @@ settingsApply: function() { } UI.saveSetting('clip'); UI.saveSetting('shared'); + UI.saveSetting('view_only'); UI.saveSetting('connectTimeout'); UI.saveSetting('path'); UI.saveSetting('stylesheet'); @@ -363,6 +382,7 @@ updateState: function(rfb, state, oldstate, msg) { break; case 'disconnected': $D('noVNC_logo').style.display = "block"; + // Fall through case 'loaded': klass = "noVNC_status_normal"; break; @@ -404,16 +424,19 @@ updateVisualState: function() { $D('noVNC_cursor').disabled = true; } $D('noVNC_shared').disabled = connected; + $D('noVNC_view_only').disabled = connected; $D('noVNC_connectTimeout').disabled = connected; $D('noVNC_path').disabled = connected; if (connected) { UI.setViewClip(); UI.setMouseButton(1); + $D('clipboardButton').style.display = "inline"; $D('showKeyboard').style.display = "inline"; $D('sendCtrlAltDelButton').style.display = "inline"; } else { UI.setMouseButton(); + $D('clipboardButton').style.display = "none"; $D('showKeyboard').style.display = "none"; $D('sendCtrlAltDelButton').style.display = "none"; } @@ -464,6 +487,7 @@ connect: function() { UI.rfb.set_true_color(UI.getSetting('true_color')); UI.rfb.set_local_cursor(UI.getSetting('cursor')); UI.rfb.set_shared(UI.getSetting('shared')); + UI.rfb.set_view_only(UI.getSetting('view_only')); UI.rfb.set_connectTimeout(UI.getSetting('connectTimeout')); UI.rfb.connect(host, port, password, path); @@ -569,11 +593,11 @@ setViewDrag: function(drag) { // On touch devices, show the OS keyboard showKeyboard: function() { - if(UI.keyboardVisible == false) { + if(UI.keyboardVisible === false) { $D('keyboardinput').focus(); UI.keyboardVisible = true; $D('showKeyboard').className = "noVNC_status_button_selected"; - } else if(UI.keyboardVisible == true) { + } else if(UI.keyboardVisible === true) { $D('keyboardinput').blur(); $D('showKeyboard').className = "noVNC_status_button"; UI.keyboardVisible = false; @@ -585,7 +609,7 @@ keyInputBlur: function() { //Weird bug in iOS if you change keyboardVisible //here it does not actually occur so next time //you click keyboard icon it doesnt work. - setTimeout("UI.setKeyboard()",100) + setTimeout(function() { UI.setKeyboard(); },100); }, setKeyboard: function() { diff --git a/webclients/novnc/include/util.js b/webclients/novnc/include/util.js index 0a9e0e0..ddc1914 100644 --- a/webclients/novnc/include/util.js +++ b/webclients/novnc/include/util.js @@ -33,6 +33,30 @@ Array.prototype.push32 = function (num) { (num ) & 0xFF ); }; +// IE does not support map (even in IE9) +//This prototype is provided by the Mozilla foundation and +//is distributed under the MIT license. +//http://www.ibiblio.org/pub/Linux/LICENSES/mit.license +if (!Array.prototype.map) +{ + Array.prototype.map = function(fun /*, thisp*/) + { + var len = this.length; + if (typeof fun != "function") + throw new TypeError(); + + var res = new Array(len); + var thisp = arguments[1]; + for (var i = 0; i < len; i++) + { + if (i in this) + res[i] = fun.call(thisp, this[i], i, this); + } + + return res; + }; +} + /* * ------------------------------------------------------ * Namespaced in Util @@ -159,7 +183,7 @@ Util.conf_defaults = function(cfg, api, defaults, arr) { Util.conf_default(cfg, api, defaults, arr[i][0], arr[i][1], arr[i][2], arr[i][3], arr[i][4]); } -} +}; /* @@ -240,8 +264,11 @@ Util.stopEvent = function(e) { Util.Features = {xpath: !!(document.evaluate), air: !!(window.runtime), query: !!(document.querySelector)}; Util.Engine = { - 'presto': (function() { - return (!window.opera) ? false : ((arguments.callee.caller) ? 960 : ((document.getElementsByClassName) ? 950 : 925)); }()), + // Version detection break in Opera 11.60 (errors on arguments.callee.caller reference) + //'presto': (function() { + // return (!window.opera) ? false : ((arguments.callee.caller) ? 960 : ((document.getElementsByClassName) ? 950 : 925)); }()), + 'presto': (function() { return (!window.opera) ? false : true; }()), + 'trident': (function() { return (!window.ActiveXObject) ? false : ((window.XMLHttpRequest) ? ((document.querySelectorAll) ? 6 : 5) : 4); }()), 'webkit': (function() { diff --git a/webclients/novnc/include/vnc.js b/webclients/novnc/include/vnc.js index f938be7..2b31f45 100644 --- a/webclients/novnc/include/vnc.js +++ b/webclients/novnc/include/vnc.js @@ -36,6 +36,7 @@ function get_INCLUDE_URI() { extra += start + "input.js" + end; extra += start + "display.js" + end; extra += start + "rfb.js" + end; + extra += start + "jsunzip.js" + end; document.write(extra); }()); diff --git a/webclients/novnc/include/websock.js b/webclients/novnc/include/websock.js index a688f76..33350df 100644 --- a/webclients/novnc/include/websock.js +++ b/webclients/novnc/include/websock.js @@ -14,16 +14,23 @@ * read binary data off of the receive queue. */ +/*jslint browser: true, bitwise: false, plusplus: false */ +/*global Util, Base64 */ + // Load Flash WebSocket emulator if needed -if (window.WebSocket) { +if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) { Websock_native = true; -} else if (window.MozWebSocket) { +} else if (window.MozWebSocket && !window.WEB_SOCKET_FORCE_FLASH) { Websock_native = true; window.WebSocket = window.MozWebSocket; } else { /* no builtin WebSocket so load web_socket.js */ + + // To enable debug: + // window.WEB_SOCKET_DEBUG=1; + Websock_native = false; (function () { function get_INCLUDE_URI() { @@ -34,11 +41,11 @@ if (window.WebSocket) { var start = "