mirror of
https://github.com/novnc/noVNC.git
synced 2026-05-27 15:39:41 +00:00
15ce2f71eb
Previously, setting `innerHTML` was used to display the statuses. These could include content communicated from the remote VNC server, allowing the remove VNC server to inject HTML into the noVNC page. This commit switches all uses of `innerHTML` to use `textContent`, which is not vulnerable to the HTML injection.
1288 lines
48 KiB
JavaScript
1288 lines
48 KiB
JavaScript
/*
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* noVNC: HTML5 VNC client
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* Copyright (C) 2012 Joel Martin
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* Copyright (C) 2016 Samuel Mannehed for Cendio AB
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* Licensed under MPL 2.0 (see LICENSE.txt)
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*
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* See README.md for usage and integration instructions.
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*/
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/* jslint white: false, browser: true */
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/* global window, $D, Util, WebUtil, RFB, Display */
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var UI;
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(function () {
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"use strict";
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// Load supporting scripts
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window.onscriptsload = function () { UI.load(); };
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Util.load_scripts(["webutil.js", "base64.js", "websock.js", "des.js",
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"keysymdef.js", "keyboard.js", "input.js", "display.js",
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"rfb.js", "keysym.js", "inflator.js"]);
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UI = {
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rfb_state: 'loaded',
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resizeTimeout: null,
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popupStatusTimeout: null,
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hideKeyboardTimeout: null,
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settingsOpen: false,
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connSettingsOpen: false,
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clipboardOpen: false,
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keyboardVisible: false,
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isTouchDevice: false,
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isSafari: false,
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rememberedClipSetting: null,
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lastKeyboardinput: null,
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defaultKeyboardinputLen: 100,
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shiftDown: false,
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ctrlDown: false,
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altDown: false,
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altGrDown: false,
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// Setup rfb object, load settings from browser storage, then call
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// UI.init to setup the UI/menus
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load: function(callback) {
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WebUtil.initSettings(UI.start, callback);
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},
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// Render default UI and initialize settings menu
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start: function(callback) {
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UI.isTouchDevice = 'ontouchstart' in document.documentElement;
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// Stylesheet selection dropdown
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var sheet = WebUtil.selectStylesheet();
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var sheets = WebUtil.getStylesheets();
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var i;
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for (i = 0; i < sheets.length; i += 1) {
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UI.addOption($D('noVNC_setting_stylesheet'),sheets[i].title, sheets[i].title);
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}
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// Logging selection dropdown
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var llevels = ['error', 'warn', 'info', 'debug'];
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for (i = 0; i < llevels.length; i += 1) {
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UI.addOption($D('noVNC_setting_logging'),llevels[i], llevels[i]);
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}
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// Settings with immediate effects
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UI.initSetting('logging', 'warn');
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WebUtil.init_logging(UI.getSetting('logging'));
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UI.initSetting('stylesheet', 'default');
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WebUtil.selectStylesheet(null);
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// call twice to get around webkit bug
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WebUtil.selectStylesheet(UI.getSetting('stylesheet'));
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// if port == 80 (or 443) then it won't be present and should be
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// set manually
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var port = window.location.port;
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if (!port) {
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if (window.location.protocol.substring(0,5) == 'https') {
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port = 443;
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}
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else if (window.location.protocol.substring(0,4) == 'http') {
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port = 80;
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}
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}
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/* Populate the controls if defaults are provided in the URL */
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UI.initSetting('host', window.location.hostname);
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UI.initSetting('port', port);
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UI.initSetting('password', '');
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UI.initSetting('encrypt', (window.location.protocol === "https:"));
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UI.initSetting('true_color', true);
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UI.initSetting('cursor', !UI.isTouchDevice);
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UI.initSetting('resize', 'off');
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UI.initSetting('shared', true);
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UI.initSetting('view_only', false);
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UI.initSetting('path', 'websockify');
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UI.initSetting('repeaterID', '');
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UI.initSetting('token', '');
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var autoconnect = WebUtil.getConfigVar('autoconnect', false);
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if (autoconnect === 'true' || autoconnect == '1') {
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autoconnect = true;
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UI.connect();
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} else {
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autoconnect = false;
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}
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UI.updateVisualState();
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$D('noVNC_setting_host').focus();
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// Show mouse selector buttons on touch screen devices
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if (UI.isTouchDevice) {
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// Show mobile buttons
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$D('noVNC_mobile_buttons').style.display = "inline";
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UI.setMouseButton();
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// Remove the address bar
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setTimeout(function() { window.scrollTo(0, 1); }, 100);
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UI.forceSetting('clip', true);
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} else {
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UI.initSetting('clip', false);
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}
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UI.setViewClip();
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UI.setBarPosition();
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Util.addEvent(window, 'resize', function () {
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UI.applyResizeMode();
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UI.setViewClip();
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UI.updateViewDrag();
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UI.setBarPosition();
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} );
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UI.isSafari = (navigator.userAgent.indexOf('Safari') != -1 &&
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navigator.userAgent.indexOf('Chrome') == -1);
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// Only show the button if fullscreen is properly supported
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// * Safari doesn't support alphanumerical input while in fullscreen
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if (!UI.isSafari &&
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(document.documentElement.requestFullscreen ||
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document.documentElement.mozRequestFullScreen ||
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document.documentElement.webkitRequestFullscreen ||
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document.body.msRequestFullscreen)) {
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$D('noVNC_fullscreen_button').style.display = "inline";
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Util.addEvent(window, 'fullscreenchange', UI.updateFullscreenButton);
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Util.addEvent(window, 'mozfullscreenchange', UI.updateFullscreenButton);
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Util.addEvent(window, 'webkitfullscreenchange', UI.updateFullscreenButton);
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Util.addEvent(window, 'msfullscreenchange', UI.updateFullscreenButton);
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}
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Util.addEvent(window, 'load', UI.keyboardinputReset);
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Util.addEvent(window, 'beforeunload', function () {
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if (UI.rfb && UI.rfb_state === 'normal') {
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return "You are currently connected.";
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}
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} );
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// Show description by default when hosted at for kanaka.github.com
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if (location.host === "kanaka.github.io") {
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// Open the description dialog
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$D('noVNC_description').style.display = "block";
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} else {
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// Show the connect panel on first load unless autoconnecting
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if (autoconnect === UI.connSettingsOpen) {
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UI.toggleConnectPanel();
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}
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}
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// Add mouse event click/focus/blur event handlers to the UI
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UI.addMouseHandlers();
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if (typeof callback === "function") {
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callback(UI.rfb);
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}
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},
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initRFB: function() {
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try {
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UI.rfb = new RFB({'target': $D('noVNC_canvas'),
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'onUpdateState': UI.updateState,
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'onXvpInit': UI.updateXvpButton,
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'onClipboard': UI.clipboardReceive,
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'onFBUComplete': UI.initialResize,
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'onFBResize': UI.updateViewDrag,
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'onDesktopName': UI.updateDocumentTitle});
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return true;
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} catch (exc) {
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UI.updateState(null, 'fatal', null, 'Unable to create RFB client -- ' + exc);
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return false;
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}
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},
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addMouseHandlers: function() {
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// Setup interface handlers that can't be inline
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$D("noVNC_view_drag_button").onclick = UI.toggleViewDrag;
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$D("noVNC_mouse_button0").onclick = function () { UI.setMouseButton(1); };
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$D("noVNC_mouse_button1").onclick = function () { UI.setMouseButton(2); };
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$D("noVNC_mouse_button2").onclick = function () { UI.setMouseButton(4); };
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$D("noVNC_mouse_button4").onclick = function () { UI.setMouseButton(0); };
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$D("noVNC_keyboard_button").onclick = UI.showKeyboard;
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$D("noVNC_keyboardinput").oninput = UI.keyInput;
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$D("noVNC_keyboardinput").onblur = UI.hideKeyboard;
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$D("noVNC_keyboardinput").onsubmit = function () { return false; };
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$D("noVNC_toggleExtraKeys_button").onclick = UI.toggleExtraKeys;
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$D("noVNC_toggleCtrl_button").onclick = UI.toggleCtrl;
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$D("noVNC_toggleAlt_button").onclick = UI.toggleAlt;
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$D("noVNC_sendTab_button").onclick = UI.sendTab;
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$D("noVNC_sendEsc_button").onclick = UI.sendEsc;
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$D("noVNC_sendCtrlAltDel_button").onclick = UI.sendCtrlAltDel;
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$D("noVNC_xvpShutdown_button").onclick = function() { UI.rfb.xvpShutdown(); },
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$D("noVNC_xvpReboot_button").onclick = function() { UI.rfb.xvpReboot(); },
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$D("noVNC_xvpReset_button").onclick = function() { UI.rfb.xvpReset(); },
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$D("noVNC_status").onclick = UI.popupStatus;
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$D("noVNC_popup_status").onclick = UI.closePopup;
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$D("noVNC_toggleXvp_button").onclick = UI.toggleXvpPanel;
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$D("noVNC_clipboard_button").onclick = UI.toggleClipboardPanel;
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$D("noVNC_fullscreen_button").onclick = UI.toggleFullscreen;
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$D("noVNC_settings_button").onclick = UI.toggleSettingsPanel;
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$D("noVNC_connectPanel_button").onclick = UI.toggleConnectPanel;
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$D("noVNC_disconnect_button").onclick = UI.disconnect;
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$D("noVNC_description_button").onclick = UI.toggleConnectPanel;
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$D("noVNC_clipboard_text").onfocus = UI.displayBlur;
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$D("noVNC_clipboard_text").onblur = UI.displayFocus;
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$D("noVNC_clipboard_text").onchange = UI.clipboardSend;
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$D("noVNC_clipboard_clear_button").onclick = UI.clipboardClear;
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$D("noVNC_settings_menu").onmouseover = UI.displayBlur;
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$D("noVNC_settings_menu").onmouseover = UI.displayFocus;
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$D("noVNC_settings_apply").onclick = UI.settingsApply;
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$D("noVNC_connect_button").onclick = UI.connect;
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$D("noVNC_setting_resize").onchange = UI.enableDisableViewClip;
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},
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/* ------^-------
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* /INIT
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* ==============
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* VISUAL
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* ------v------*/
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updateState: function(rfb, state, oldstate, msg) {
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UI.rfb_state = state;
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var klass;
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switch (state) {
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case 'failed':
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case 'fatal':
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klass = "noVNC_status_error";
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break;
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case 'normal':
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klass = "noVNC_status_normal";
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break;
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case 'disconnected':
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$D('noVNC_logo').style.display = "block";
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$D('noVNC_screen').style.display = "none";
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/* falls through */
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case 'loaded':
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klass = "noVNC_status_normal";
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break;
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case 'password':
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UI.toggleConnectPanel();
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$D('noVNC_connect_button').value = "Send Password";
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$D('noVNC_connect_button').onclick = UI.setPassword;
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$D('noVNC_setting_password').focus();
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klass = "noVNC_status_warn";
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break;
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default:
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klass = "noVNC_status_warn";
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break;
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}
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if (typeof(msg) !== 'undefined') {
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$D('noVNC_control_bar').setAttribute("class", klass);
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$D('noVNC_status').textContent = msg;
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}
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UI.updateVisualState();
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},
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// Disable/enable controls depending on connection state
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updateVisualState: function() {
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var connected = UI.rfb && UI.rfb_state === 'normal';
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//Util.Debug(">> updateVisualState");
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$D('noVNC_setting_encrypt').disabled = connected;
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$D('noVNC_setting_true_color').disabled = connected;
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if (Util.browserSupportsCursorURIs()) {
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$D('noVNC_setting_cursor').disabled = connected;
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} else {
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UI.updateSetting('cursor', !UI.isTouchDevice);
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$D('noVNC_setting_cursor').disabled = true;
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}
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UI.enableDisableViewClip();
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$D('noVNC_setting_resize').disabled = connected;
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$D('noVNC_setting_shared').disabled = connected;
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$D('noVNC_setting_view_only').disabled = connected;
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$D('noVNC_setting_path').disabled = connected;
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$D('noVNC_setting_repeaterID').disabled = connected;
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if (connected) {
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UI.setViewClip();
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UI.setMouseButton(1);
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$D('noVNC_clipboard_button').style.display = "inline";
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$D('noVNC_keyboard_button').style.display = "inline";
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$D('noVNC_extra_keys').style.display = "";
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$D('noVNC_sendCtrlAltDel_button').style.display = "inline";
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} else {
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UI.setMouseButton();
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$D('noVNC_clipboard_button').style.display = "none";
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$D('noVNC_keyboard_button').style.display = "none";
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$D('noVNC_extra_keys').style.display = "none";
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$D('noVNC_sendCtrlAltDel_button').style.display = "none";
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UI.updateXvpButton(0);
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}
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// State change disables viewport dragging.
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// It is enabled (toggled) by direct click on the button
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UI.updateViewDrag(false);
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switch (UI.rfb_state) {
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case 'fatal':
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case 'failed':
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case 'disconnected':
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$D('noVNC_connectPanel_button').style.display = "";
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$D('noVNC_disconnect_button').style.display = "none";
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UI.connSettingsOpen = false;
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UI.toggleConnectPanel();
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break;
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case 'loaded':
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$D('noVNC_connectPanel_button').style.display = "";
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$D('noVNC_disconnect_button').style.display = "none";
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break;
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default:
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$D('noVNC_connectPanel_button').style.display = "none";
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$D('noVNC_disconnect_button').style.display = "";
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break;
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}
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//Util.Debug("<< updateVisualState");
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},
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popupStatus: function(text) {
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var psp = $D('noVNC_popup_status');
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clearTimeout(UI.popupStatusTimeout);
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if (typeof text === 'string') {
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psp.textContent = text;
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} else {
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psp.textContent = $D('noVNC_status').textContent;
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}
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psp.style.display = "block";
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psp.style.left = window.innerWidth/2 -
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parseInt(window.getComputedStyle(psp).width)/2 -30 + "px";
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// Show the popup for a maximum of 1.5 seconds
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UI.popupStatusTimeout = setTimeout(UI.closePopup, 1500);
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},
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closePopup: function() {
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clearTimeout(UI.popupStatusTimeout);
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$D('noVNC_popup_status').style.display = "none";
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},
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/* ------^-------
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* /VISUAL
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* ==============
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* SETTINGS
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* ------v------*/
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// Initial page load read/initialization of settings
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initSetting: function(name, defVal) {
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// Check Query string followed by cookie
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var val = WebUtil.getConfigVar(name);
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if (val === null) {
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val = WebUtil.readSetting(name, defVal);
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}
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UI.updateSetting(name, val);
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return val;
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},
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// Update cookie and form control setting. If value is not set, then
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// updates from control to current cookie setting.
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updateSetting: function(name, value) {
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// Save the cookie for this session
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if (typeof value !== 'undefined') {
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WebUtil.writeSetting(name, value);
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}
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// Update the settings control
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value = UI.getSetting(name);
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var ctrl = $D('noVNC_setting_' + name);
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if (ctrl.type === 'checkbox') {
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ctrl.checked = value;
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} else if (typeof ctrl.options !== 'undefined') {
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for (var i = 0; i < ctrl.options.length; i += 1) {
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if (ctrl.options[i].value === value) {
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ctrl.selectedIndex = i;
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break;
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}
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}
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} else {
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/*Weird IE9 error leads to 'null' appearring
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in textboxes instead of ''.*/
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if (value === null) {
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value = "";
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}
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ctrl.value = value;
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}
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},
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// Save control setting to cookie
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saveSetting: function(name) {
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var val, ctrl = $D('noVNC_setting_' + name);
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if (ctrl.type === 'checkbox') {
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val = ctrl.checked;
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} else if (typeof ctrl.options !== 'undefined') {
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val = ctrl.options[ctrl.selectedIndex].value;
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} else {
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val = ctrl.value;
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}
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WebUtil.writeSetting(name, val);
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//Util.Debug("Setting saved '" + name + "=" + val + "'");
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return val;
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},
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// Force a setting to be a certain value
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forceSetting: function(name, val) {
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UI.updateSetting(name, val);
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return val;
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},
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// Read form control compatible setting from cookie
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getSetting: function(name) {
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var ctrl = $D('noVNC_setting_' + name);
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var val = WebUtil.readSetting(name);
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if (typeof val !== 'undefined' && val !== null && ctrl.type === 'checkbox') {
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if (val.toString().toLowerCase() in {'0':1, 'no':1, 'false':1}) {
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val = false;
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} else {
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val = true;
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}
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}
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return val;
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},
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// Save/apply settings when 'Apply' button is pressed
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settingsApply: function() {
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//Util.Debug(">> settingsApply");
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UI.saveSetting('encrypt');
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UI.saveSetting('true_color');
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if (Util.browserSupportsCursorURIs()) {
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UI.saveSetting('cursor');
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}
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UI.saveSetting('resize');
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if (UI.getSetting('resize') === 'downscale' || UI.getSetting('resize') === 'scale') {
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UI.forceSetting('clip', false);
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}
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UI.saveSetting('clip');
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UI.saveSetting('shared');
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UI.saveSetting('view_only');
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UI.saveSetting('path');
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UI.saveSetting('repeaterID');
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UI.saveSetting('stylesheet');
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UI.saveSetting('logging');
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// Settings with immediate (non-connected related) effect
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WebUtil.selectStylesheet(UI.getSetting('stylesheet'));
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WebUtil.init_logging(UI.getSetting('logging'));
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UI.setViewClip();
|
|
UI.updateViewDrag();
|
|
//Util.Debug("<< settingsApply");
|
|
},
|
|
|
|
// Open menu
|
|
openSettingsMenu: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close clipboard panel if open
|
|
if (UI.clipboardOpen === true) {
|
|
UI.toggleClipboardPanel();
|
|
}
|
|
// Close connection settings if open
|
|
if (UI.connSettingsOpen === true) {
|
|
UI.toggleConnectPanel();
|
|
}
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
$D('noVNC_settings').style.display = "block";
|
|
$D('noVNC_settings_button').className = "noVNC_status_button_selected";
|
|
UI.settingsOpen = true;
|
|
},
|
|
|
|
// Close menu (without applying settings)
|
|
closeSettingsMenu: function() {
|
|
$D('noVNC_settings').style.display = "none";
|
|
$D('noVNC_settings_button').className = "noVNC_status_button";
|
|
UI.settingsOpen = false;
|
|
},
|
|
|
|
// Toggle the settings menu:
|
|
// 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();
|
|
} else {
|
|
UI.updateSetting('encrypt');
|
|
UI.updateSetting('true_color');
|
|
if (Util.browserSupportsCursorURIs()) {
|
|
UI.updateSetting('cursor');
|
|
} else {
|
|
UI.updateSetting('cursor', !UI.isTouchDevice);
|
|
$D('noVNC_setting_cursor').disabled = true;
|
|
}
|
|
UI.updateSetting('clip');
|
|
UI.updateSetting('resize');
|
|
UI.updateSetting('shared');
|
|
UI.updateSetting('view_only');
|
|
UI.updateSetting('path');
|
|
UI.updateSetting('repeaterID');
|
|
UI.updateSetting('stylesheet');
|
|
UI.updateSetting('logging');
|
|
|
|
UI.openSettingsMenu();
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /SETTINGS
|
|
* ==============
|
|
* XVP
|
|
* ------v------*/
|
|
|
|
// Show the XVP panel
|
|
toggleXvpPanel: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close settings if open
|
|
if (UI.settingsOpen === true) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
}
|
|
// Close connection settings if open
|
|
if (UI.connSettingsOpen === true) {
|
|
UI.toggleConnectPanel();
|
|
}
|
|
// Close clipboard panel if open
|
|
if (UI.clipboardOpen === true) {
|
|
UI.toggleClipboardPanel();
|
|
}
|
|
// Toggle XVP panel
|
|
if (UI.xvpOpen === true) {
|
|
$D('noVNC_xvp').style.display = "none";
|
|
$D('noVNC_toggleXvp_button').className = "noVNC_status_button";
|
|
UI.xvpOpen = false;
|
|
} else {
|
|
$D('noVNC_xvp').style.display = "block";
|
|
$D('noVNC_toggleXvp_button').className = "noVNC_status_button_selected";
|
|
UI.xvpOpen = true;
|
|
}
|
|
},
|
|
|
|
// Disable/enable XVP button
|
|
updateXvpButton: function(ver) {
|
|
if (ver >= 1) {
|
|
$D('noVNC_toggleXvp_button').style.display = 'inline';
|
|
} else {
|
|
$D('noVNC_toggleXvp_button').style.display = 'none';
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /XVP
|
|
* ==============
|
|
* CLIPBOARD
|
|
* ------v------*/
|
|
|
|
// Show the clipboard panel
|
|
toggleClipboardPanel: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close settings if open
|
|
if (UI.settingsOpen === true) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
}
|
|
// Close connection settings if open
|
|
if (UI.connSettingsOpen === true) {
|
|
UI.toggleConnectPanel();
|
|
}
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
// Toggle Clipboard Panel
|
|
if (UI.clipboardOpen === true) {
|
|
$D('noVNC_clipboard').style.display = "none";
|
|
$D('noVNC_clipboard_button').className = "noVNC_status_button";
|
|
UI.clipboardOpen = false;
|
|
} else {
|
|
$D('noVNC_clipboard').style.display = "block";
|
|
$D('noVNC_clipboard_button').className = "noVNC_status_button_selected";
|
|
UI.clipboardOpen = true;
|
|
}
|
|
},
|
|
|
|
clipboardReceive: function(rfb, text) {
|
|
Util.Debug(">> UI.clipboardReceive: " + text.substr(0,40) + "...");
|
|
$D('noVNC_clipboard_text').value = text;
|
|
Util.Debug("<< UI.clipboardReceive");
|
|
},
|
|
|
|
clipboardClear: function() {
|
|
$D('noVNC_clipboard_text').value = "";
|
|
UI.rfb.clipboardPasteFrom("");
|
|
},
|
|
|
|
clipboardSend: function() {
|
|
var text = $D('noVNC_clipboard_text').value;
|
|
Util.Debug(">> UI.clipboardSend: " + text.substr(0,40) + "...");
|
|
UI.rfb.clipboardPasteFrom(text);
|
|
Util.Debug("<< UI.clipboardSend");
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CLIPBOARD
|
|
* ==============
|
|
* CONNECTION
|
|
* ------v------*/
|
|
|
|
// 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) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
$D('noVNC_connectPanel_button').className = "noVNC_status_button";
|
|
}
|
|
// Close clipboard panel if open
|
|
if (UI.clipboardOpen === true) {
|
|
UI.toggleClipboardPanel();
|
|
}
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
|
|
// Toggle Connection Panel
|
|
if (UI.connSettingsOpen === true) {
|
|
$D('noVNC_controls').style.display = "none";
|
|
$D('noVNC_connectPanel_button').className = "noVNC_status_button";
|
|
UI.connSettingsOpen = false;
|
|
UI.saveSetting('host');
|
|
UI.saveSetting('port');
|
|
UI.saveSetting('token');
|
|
//UI.saveSetting('password');
|
|
} else {
|
|
$D('noVNC_controls').style.display = "block";
|
|
$D('noVNC_connectPanel_button').className = "noVNC_status_button_selected";
|
|
UI.connSettingsOpen = true;
|
|
$D('noVNC_setting_host').focus();
|
|
}
|
|
},
|
|
|
|
connect: function() {
|
|
UI.closeSettingsMenu();
|
|
UI.toggleConnectPanel();
|
|
|
|
var host = $D('noVNC_setting_host').value;
|
|
var port = $D('noVNC_setting_port').value;
|
|
var password = $D('noVNC_setting_password').value;
|
|
var token = $D('noVNC_setting_token').value;
|
|
var path = $D('noVNC_setting_path').value;
|
|
|
|
//if token is in path then ignore the new token variable
|
|
if (token) {
|
|
path = WebUtil.injectParamIfMissing(path, "token", token);
|
|
}
|
|
|
|
if ((!host) || (!port)) {
|
|
throw new Error("Must set host and port");
|
|
}
|
|
|
|
if (!UI.initRFB()) return;
|
|
|
|
UI.rfb.set_encrypt(UI.getSetting('encrypt'));
|
|
UI.rfb.set_true_color(UI.getSetting('true_color'));
|
|
UI.rfb.set_local_cursor(UI.getSetting('cursor'));
|
|
UI.rfb.set_shared(UI.getSetting('shared'));
|
|
UI.rfb.set_view_only(UI.getSetting('view_only'));
|
|
UI.rfb.set_repeaterID(UI.getSetting('repeaterID'));
|
|
|
|
UI.rfb.connect(host, port, password, path);
|
|
|
|
//Close dialog.
|
|
setTimeout(UI.setBarPosition, 100);
|
|
$D('noVNC_logo').style.display = "none";
|
|
$D('noVNC_screen').style.display = "inline";
|
|
},
|
|
|
|
disconnect: function() {
|
|
UI.closeSettingsMenu();
|
|
UI.rfb.disconnect();
|
|
|
|
// Restore the callback used for initial resize
|
|
UI.rfb.set_onFBUComplete(UI.initialResize);
|
|
|
|
$D('noVNC_logo').style.display = "block";
|
|
$D('noVNC_screen').style.display = "none";
|
|
|
|
// Don't display the connection settings until we're actually disconnected
|
|
},
|
|
|
|
setPassword: function() {
|
|
UI.rfb.sendPassword($D('noVNC_setting_password').value);
|
|
//Reset connect button.
|
|
$D('noVNC_connect_button').value = "Connect";
|
|
$D('noVNC_connect_button').onclick = UI.connect;
|
|
//Hide connection panel.
|
|
UI.toggleConnectPanel();
|
|
return false;
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CONNECTION
|
|
* ==============
|
|
* FULLSCREEN
|
|
* ------v------*/
|
|
|
|
toggleFullscreen: function() {
|
|
if (document.fullscreenElement || // alternative standard method
|
|
document.mozFullScreenElement || // currently working methods
|
|
document.webkitFullscreenElement ||
|
|
document.msFullscreenElement) {
|
|
if (document.exitFullscreen) {
|
|
document.exitFullscreen();
|
|
} else if (document.mozCancelFullScreen) {
|
|
document.mozCancelFullScreen();
|
|
} else if (document.webkitExitFullscreen) {
|
|
document.webkitExitFullscreen();
|
|
} else if (document.msExitFullscreen) {
|
|
document.msExitFullscreen();
|
|
}
|
|
} else {
|
|
if (document.documentElement.requestFullscreen) {
|
|
document.documentElement.requestFullscreen();
|
|
} else if (document.documentElement.mozRequestFullScreen) {
|
|
document.documentElement.mozRequestFullScreen();
|
|
} else if (document.documentElement.webkitRequestFullscreen) {
|
|
document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
|
|
} else if (document.body.msRequestFullscreen) {
|
|
document.body.msRequestFullscreen();
|
|
}
|
|
}
|
|
UI.enableDisableViewClip();
|
|
UI.updateFullscreenButton();
|
|
},
|
|
|
|
updateFullscreenButton: function() {
|
|
if (document.fullscreenElement || // alternative standard method
|
|
document.mozFullScreenElement || // currently working methods
|
|
document.webkitFullscreenElement ||
|
|
document.msFullscreenElement ) {
|
|
$D('noVNC_fullscreen_button').className = "noVNC_status_button_selected";
|
|
} else {
|
|
$D('noVNC_fullscreen_button').className = "noVNC_status_button";
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /FULLSCREEN
|
|
* ==============
|
|
* RESIZE
|
|
* ------v------*/
|
|
|
|
// Apply remote resizing or local scaling
|
|
applyResizeMode: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
var screen = UI.screenSize();
|
|
|
|
if (screen && UI.rfb_state === 'normal' && UI.rfb.get_display()) {
|
|
|
|
var display = UI.rfb.get_display();
|
|
var resizeMode = UI.getSetting('resize');
|
|
|
|
if (resizeMode === 'remote') {
|
|
|
|
// Request changing the resolution of the remote display to
|
|
// the size of the local browser viewport.
|
|
|
|
// In order to not send multiple requests before the browser-resize
|
|
// is finished we wait 0.5 seconds before sending the request.
|
|
clearTimeout(UI.resizeTimeout);
|
|
UI.resizeTimeout = setTimeout(function(){
|
|
|
|
// Limit the viewport to the size of the browser window
|
|
display.set_maxWidth(screen.w);
|
|
display.set_maxHeight(screen.h);
|
|
|
|
Util.Debug('Attempting requestDesktopSize(' +
|
|
screen.w + ', ' + screen.h + ')');
|
|
|
|
// Request a remote size covering the viewport
|
|
UI.rfb.requestDesktopSize(screen.w, screen.h);
|
|
}, 500);
|
|
|
|
} else if (resizeMode === 'scale' || resizeMode === 'downscale') {
|
|
var downscaleOnly = resizeMode === 'downscale';
|
|
var scaleRatio = display.autoscale(screen.w, screen.h, downscaleOnly);
|
|
UI.rfb.get_mouse().set_scale(scaleRatio);
|
|
Util.Debug('Scaling by ' + UI.rfb.get_mouse().get_scale());
|
|
}
|
|
}
|
|
},
|
|
|
|
// The screen is always the same size as the available viewport
|
|
// in the browser window minus the height of the control bar
|
|
screenSize: function() {
|
|
var screen = $D('noVNC_screen');
|
|
|
|
// Hide the scrollbars until the size is calculated
|
|
screen.style.overflow = "hidden";
|
|
|
|
var pos = Util.getPosition(screen);
|
|
var w = pos.width;
|
|
var h = pos.height;
|
|
|
|
screen.style.overflow = "visible";
|
|
|
|
if (isNaN(w) || isNaN(h)) {
|
|
return false;
|
|
} else {
|
|
return {w: w, h: h};
|
|
}
|
|
},
|
|
|
|
// Normally we only apply the current resize mode after a window resize
|
|
// event. This means that when a new connection is opened, there is no
|
|
// resize mode active.
|
|
// We have to wait until the first FBU because this is where the client
|
|
// will find the supported encodings of the server. Some calls later in
|
|
// the chain is dependant on knowing the server-capabilities.
|
|
initialResize: function(rfb, fbu) {
|
|
UI.applyResizeMode();
|
|
// After doing this once, we remove the callback.
|
|
UI.rfb.set_onFBUComplete(function() { });
|
|
},
|
|
|
|
/* ------^-------
|
|
* /RESIZE
|
|
* ==============
|
|
* CLIPPING
|
|
* ------v------*/
|
|
|
|
// Set and configure viewport clipping
|
|
setViewClip: function(clip) {
|
|
var display;
|
|
if (UI.rfb) {
|
|
display = UI.rfb.get_display();
|
|
} else {
|
|
UI.forceSetting('clip', clip);
|
|
return;
|
|
}
|
|
|
|
var cur_clip = display.get_viewport();
|
|
|
|
if (typeof(clip) !== 'boolean') {
|
|
// Use current setting
|
|
clip = UI.getSetting('clip');
|
|
}
|
|
|
|
if (clip && !cur_clip) {
|
|
// Turn clipping on
|
|
UI.updateSetting('clip', true);
|
|
} else if (!clip && cur_clip) {
|
|
// Turn clipping off
|
|
UI.updateSetting('clip', false);
|
|
display.set_viewport(false);
|
|
// Disable max dimensions
|
|
display.set_maxWidth(0);
|
|
display.set_maxHeight(0);
|
|
display.viewportChangeSize();
|
|
}
|
|
if (UI.getSetting('clip')) {
|
|
// If clipping, update clipping settings
|
|
display.set_viewport(true);
|
|
|
|
var size = UI.screenSize();
|
|
if (size) {
|
|
display.set_maxWidth(size.w);
|
|
display.set_maxHeight(size.h);
|
|
|
|
// Hide potential scrollbars that can skew the position
|
|
$D('noVNC_screen').style.overflow = "hidden";
|
|
|
|
// The x position marks the left margin of the canvas,
|
|
// remove the margin from both sides to keep it centered
|
|
var new_w = size.w - (2 * Util.getPosition($D('noVNC_canvas')).x);
|
|
|
|
$D('noVNC_screen').style.overflow = "visible";
|
|
|
|
display.viewportChangeSize(new_w, size.h);
|
|
}
|
|
}
|
|
},
|
|
|
|
// Handle special cases where clipping is forced on/off or locked
|
|
enableDisableViewClip: function() {
|
|
var resizeSetting = $D('noVNC_setting_resize');
|
|
var connected = UI.rfb && UI.rfb_state === 'normal';
|
|
|
|
if (UI.isSafari) {
|
|
// Safari auto-hides the scrollbars which makes them
|
|
// impossible to use in most cases
|
|
UI.setViewClip(true);
|
|
$D('noVNC_setting_clip').disabled = true;
|
|
} else if (resizeSetting.value === 'downscale' || resizeSetting.value === 'scale') {
|
|
// Disable clipping if we are scaling
|
|
UI.setViewClip(false);
|
|
$D('noVNC_setting_clip').disabled = true;
|
|
} else if (document.msFullscreenElement) {
|
|
// The browser is IE and we are in fullscreen mode.
|
|
// - We need to force clipping while in fullscreen since
|
|
// scrollbars doesn't work.
|
|
UI.popupStatus("Forcing clipping mode since scrollbars aren't supported by IE in fullscreen");
|
|
UI.rememberedClipSetting = UI.getSetting('clip');
|
|
UI.setViewClip(true);
|
|
$D('noVNC_setting_clip').disabled = true;
|
|
} else if (document.body.msRequestFullscreen && UI.rememberedClip !== null) {
|
|
// Restore view clip to what it was before fullscreen on IE
|
|
UI.setViewClip(UI.rememberedClipSetting);
|
|
$D('noVNC_setting_clip').disabled = connected || UI.isTouchDevice;
|
|
} else {
|
|
$D('noVNC_setting_clip').disabled = connected || UI.isTouchDevice;
|
|
if (UI.isTouchDevice) {
|
|
UI.setViewClip(true);
|
|
}
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CLIPPING
|
|
* ==============
|
|
* VIEWDRAG
|
|
* ------v------*/
|
|
|
|
// Update the viewport drag state
|
|
updateViewDrag: function(drag) {
|
|
if (!UI.rfb) return;
|
|
|
|
var viewDragButton = $D('noVNC_view_drag_button');
|
|
|
|
// Check if viewport drag is possible. It is only possible
|
|
// if the remote display is clipping the client display.
|
|
if (UI.rfb_state === 'normal' &&
|
|
UI.rfb.get_display().get_viewport() &&
|
|
UI.rfb.get_display().clippingDisplay()) {
|
|
|
|
viewDragButton.style.display = "inline";
|
|
viewDragButton.disabled = false;
|
|
|
|
} else {
|
|
// The size of the remote display is the same or smaller
|
|
// than the client display. Make sure viewport drag isn't
|
|
// active when it can't be used.
|
|
if (UI.rfb.get_viewportDrag) {
|
|
viewDragButton.className = "noVNC_status_button";
|
|
UI.rfb.set_viewportDrag(false);
|
|
}
|
|
|
|
// The button is disabled instead of hidden on touch devices
|
|
if (UI.rfb_state === 'normal' && UI.isTouchDevice) {
|
|
viewDragButton.style.display = "inline";
|
|
viewDragButton.disabled = true;
|
|
} else {
|
|
viewDragButton.style.display = "none";
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (typeof(drag) !== "undefined" &&
|
|
typeof(drag) !== "object") {
|
|
if (drag) {
|
|
viewDragButton.className = "noVNC_status_button_selected";
|
|
UI.rfb.set_viewportDrag(true);
|
|
} else {
|
|
viewDragButton.className = "noVNC_status_button";
|
|
UI.rfb.set_viewportDrag(false);
|
|
}
|
|
}
|
|
},
|
|
|
|
toggleViewDrag: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
var viewDragButton = $D('noVNC_view_drag_button');
|
|
if (UI.rfb.get_viewportDrag()) {
|
|
viewDragButton.className = "noVNC_status_button";
|
|
UI.rfb.set_viewportDrag(false);
|
|
} else {
|
|
viewDragButton.className = "noVNC_status_button_selected";
|
|
UI.rfb.set_viewportDrag(true);
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /VIEWDRAG
|
|
* ==============
|
|
* KEYBOARD
|
|
* ------v------*/
|
|
|
|
// On touch devices, show the OS keyboard
|
|
showKeyboard: function() {
|
|
var kbi = $D('noVNC_keyboardinput');
|
|
var skb = $D('noVNC_keyboard_button');
|
|
var l = kbi.value.length;
|
|
if(UI.keyboardVisible === false) {
|
|
kbi.focus();
|
|
try { kbi.setSelectionRange(l, l); } // Move the caret to the end
|
|
catch (err) {} // setSelectionRange is undefined in Google Chrome
|
|
UI.keyboardVisible = true;
|
|
skb.className = "noVNC_status_button_selected";
|
|
} else if(UI.keyboardVisible === true) {
|
|
kbi.blur();
|
|
skb.className = "noVNC_status_button";
|
|
UI.keyboardVisible = false;
|
|
}
|
|
},
|
|
|
|
hideKeyboard: function() {
|
|
$D('noVNC_keyboard_button').className = "noVNC_status_button";
|
|
//Weird bug in iOS if you change keyboardVisible
|
|
//here it does not actually occur so next time
|
|
//you click keyboard icon it doesnt work.
|
|
UI.hideKeyboardTimeout = setTimeout(function() {
|
|
UI.keyboardVisible = false;
|
|
},100);
|
|
},
|
|
|
|
keepKeyboard: function() {
|
|
clearTimeout(UI.hideKeyboardTimeout);
|
|
if(UI.keyboardVisible === true) {
|
|
$D('noVNC_keyboardinput').focus();
|
|
$D('noVNC_keyboard_button').className = "noVNC_status_button_selected";
|
|
} else if(UI.keyboardVisible === false) {
|
|
$D('noVNC_keyboardinput').blur();
|
|
$D('noVNC_keyboard_button').className = "noVNC_status_button";
|
|
}
|
|
},
|
|
|
|
keyboardinputReset: function() {
|
|
var kbi = $D('noVNC_keyboardinput');
|
|
kbi.value = new Array(UI.defaultKeyboardinputLen).join("_");
|
|
UI.lastKeyboardinput = kbi.value;
|
|
},
|
|
|
|
// When normal keyboard events are left uncought, use the input events from
|
|
// the keyboardinput element instead and generate the corresponding key events.
|
|
// This code is required since some browsers on Android are inconsistent in
|
|
// sending keyCodes in the normal keyboard events when using on screen keyboards.
|
|
keyInput: function(event) {
|
|
|
|
if (!UI.rfb) return;
|
|
|
|
var newValue = event.target.value;
|
|
|
|
if (!UI.lastKeyboardinput) {
|
|
UI.keyboardinputReset();
|
|
}
|
|
var oldValue = UI.lastKeyboardinput;
|
|
|
|
var newLen;
|
|
try {
|
|
// Try to check caret position since whitespace at the end
|
|
// will not be considered by value.length in some browsers
|
|
newLen = Math.max(event.target.selectionStart, newValue.length);
|
|
} catch (err) {
|
|
// selectionStart is undefined in Google Chrome
|
|
newLen = newValue.length;
|
|
}
|
|
var oldLen = oldValue.length;
|
|
|
|
var backspaces;
|
|
var inputs = newLen - oldLen;
|
|
if (inputs < 0) {
|
|
backspaces = -inputs;
|
|
} else {
|
|
backspaces = 0;
|
|
}
|
|
|
|
// Compare the old string with the new to account for
|
|
// text-corrections or other input that modify existing text
|
|
var i;
|
|
for (i = 0; i < Math.min(oldLen, newLen); i++) {
|
|
if (newValue.charAt(i) != oldValue.charAt(i)) {
|
|
inputs = newLen - i;
|
|
backspaces = oldLen - i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Send the key events
|
|
for (i = 0; i < backspaces; i++) {
|
|
UI.rfb.sendKey(XK_BackSpace);
|
|
}
|
|
for (i = newLen - inputs; i < newLen; i++) {
|
|
UI.rfb.sendKey(newValue.charCodeAt(i));
|
|
}
|
|
|
|
// Control the text content length in the keyboardinput element
|
|
if (newLen > 2 * UI.defaultKeyboardinputLen) {
|
|
UI.keyboardinputReset();
|
|
} else if (newLen < 1) {
|
|
// There always have to be some text in the keyboardinput
|
|
// element with which backspace can interact.
|
|
UI.keyboardinputReset();
|
|
// This sometimes causes the keyboard to disappear for a second
|
|
// but it is required for the android keyboard to recognize that
|
|
// text has been added to the field
|
|
event.target.blur();
|
|
// This has to be ran outside of the input handler in order to work
|
|
setTimeout(UI.keepKeyboard, 0);
|
|
} else {
|
|
UI.lastKeyboardinput = newValue;
|
|
}
|
|
},
|
|
|
|
toggleExtraKeys: function() {
|
|
UI.keepKeyboard();
|
|
if(UI.extraKeysVisible === false) {
|
|
$D('noVNC_toggleCtrl_button').style.display = "inline";
|
|
$D('noVNC_toggleAlt_button').style.display = "inline";
|
|
$D('noVNC_sendTab_button').style.display = "inline";
|
|
$D('noVNC_sendEsc_button').style.display = "inline";
|
|
$D('noVNC_toggleExtraKeys_button').className = "noVNC_status_button_selected";
|
|
UI.extraKeysVisible = true;
|
|
} else if(UI.extraKeysVisible === true) {
|
|
$D('noVNC_toggleCtrl_button').style.display = "";
|
|
$D('noVNC_toggleAlt_button').style.display = "";
|
|
$D('noVNC_sendTab_button').style.display = "";
|
|
$D('noVNC_sendEsc_button').style.display = "";
|
|
$D('noVNC_toggleExtraKeys_button').className = "noVNC_status_button";
|
|
UI.extraKeysVisible = false;
|
|
}
|
|
},
|
|
|
|
sendEsc: function() {
|
|
UI.keepKeyboard();
|
|
UI.rfb.sendKey(XK_Escape);
|
|
},
|
|
|
|
sendTab: function() {
|
|
UI.keepKeyboard();
|
|
UI.rfb.sendKey(XK_Tab);
|
|
},
|
|
|
|
toggleCtrl: function() {
|
|
UI.keepKeyboard();
|
|
if(UI.ctrlOn === false) {
|
|
UI.rfb.sendKey(XK_Control_L, true);
|
|
$D('noVNC_toggleCtrl_button').className = "noVNC_status_button_selected";
|
|
UI.ctrlOn = true;
|
|
} else if(UI.ctrlOn === true) {
|
|
UI.rfb.sendKey(XK_Control_L, false);
|
|
$D('noVNC_toggleCtrl_button').className = "noVNC_status_button";
|
|
UI.ctrlOn = false;
|
|
}
|
|
},
|
|
|
|
toggleAlt: function() {
|
|
UI.keepKeyboard();
|
|
if(UI.altOn === false) {
|
|
UI.rfb.sendKey(XK_Alt_L, true);
|
|
$D('noVNC_toggleAlt_button').className = "noVNC_status_button_selected";
|
|
UI.altOn = true;
|
|
} else if(UI.altOn === true) {
|
|
UI.rfb.sendKey(XK_Alt_L, false);
|
|
$D('noVNC_toggleAlt_button').className = "noVNC_status_button";
|
|
UI.altOn = false;
|
|
}
|
|
},
|
|
|
|
sendCtrlAltDel: function() {
|
|
UI.rfb.sendCtrlAltDel();
|
|
},
|
|
|
|
/* ------^-------
|
|
* /KEYBOARD
|
|
* ==============
|
|
* MISC
|
|
* ------v------*/
|
|
|
|
setMouseButton: function(num) {
|
|
if (typeof num === 'undefined') {
|
|
// Disable mouse buttons
|
|
num = -1;
|
|
}
|
|
if (UI.rfb) {
|
|
UI.rfb.get_mouse().set_touchButton(num);
|
|
}
|
|
|
|
var blist = [0, 1,2,4];
|
|
for (var b = 0; b < blist.length; b++) {
|
|
var button = $D('noVNC_mouse_button' + blist[b]);
|
|
if (blist[b] === num) {
|
|
button.style.display = "";
|
|
} else {
|
|
button.style.display = "none";
|
|
}
|
|
}
|
|
},
|
|
|
|
displayBlur: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.get_keyboard().set_focused(false);
|
|
UI.rfb.get_mouse().set_focused(false);
|
|
},
|
|
|
|
displayFocus: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.get_keyboard().set_focused(true);
|
|
UI.rfb.get_mouse().set_focused(true);
|
|
},
|
|
|
|
// Display the desktop name in the document title
|
|
updateDocumentTitle: function(rfb, name) {
|
|
document.title = name + " - noVNC";
|
|
},
|
|
|
|
//Helper to add options to dropdown.
|
|
addOption: function(selectbox, text, value) {
|
|
var optn = document.createElement("OPTION");
|
|
optn.text = text;
|
|
optn.value = value;
|
|
selectbox.options.add(optn);
|
|
},
|
|
|
|
setBarPosition: function() {
|
|
$D('noVNC_control_bar').style.top = (window.pageYOffset) + 'px';
|
|
$D('noVNC_mobile_buttons').style.left = (window.pageXOffset) + 'px';
|
|
|
|
var vncwidth = $D('noVNC_container').style.offsetWidth;
|
|
$D('noVNC_control_bar').style.width = vncwidth + 'px';
|
|
}
|
|
|
|
/* ------^-------
|
|
* /MISC
|
|
* ==============
|
|
*/
|
|
};
|
|
})();
|