<!DOCTYPE html>
-<html>
+<html lang="en">
<head>
<!--
noVNC example: lightweight example using minimal UI and features
- Copyright (C) 2012 Joel Martin
- Copyright (C) 2018 Samuel Mannehed for Cendio AB
+
+ This is a self-contained file which doesn't import WebUtil or external CSS.
+
+ Copyright (C) 2019 The noVNC Authors
noVNC is licensed under the MPL 2.0 (see LICENSE.txt)
This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
Connect parameters are provided in query string:
- http://example.com/?host=HOST&port=PORT&encrypt=1
- or the fragment:
- http://example.com/#host=HOST&port=PORT&encrypt=1
+ http://example.com/?host=HOST&port=PORT&scale=true
-->
<title>noVNC</title>
<meta charset="utf-8">
- <!-- Always force latest IE rendering engine (even in intranet) & Chrome Frame
- Remove this if you use the .htaccess -->
- <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+ <!-- Always force latest IE rendering engine (even in intranet) &
+ Chrome Frame. Remove this if you use the .htaccess -->
+ <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+
+ <style>
+
+ body {
+ margin: 0;
+ background-color: dimgrey;
+ height: 100%;
+ display: flex;
+ flex-direction: column;
+ }
+ html {
+ height: 100%;
+ }
+
+ #top_bar {
+ background-color: #6e84a3;
+ color: white;
+ font: bold 12px Helvetica;
+ padding: 6px 5px 4px 5px;
+ border-bottom: 1px outset;
+ }
+ #status {
+ text-align: center;
+ }
+ #sendCtrlAltDelButton {
+ position: fixed;
+ top: 0px;
+ right: 0px;
+ border: 1px outset;
+ padding: 5px 5px 4px 5px;
+ cursor: pointer;
+ }
+
+ #screen {
+ flex: 1; /* fill remaining space */
+ overflow: hidden;
+ }
- <!-- Stylesheets -->
- <link rel="stylesheet" href="app/styles/lite.css">
+ </style>
- <!-- promise polyfills promises for IE11 -->
+ <!-- Promise polyfill for IE11 -->
<script src="vendor/promise.js"></script>
+
<!-- ES2015/ES6 modules polyfill -->
- <script type="module">
- window._noVNC_has_module_support = true;
- </script>
- <script>
- window.addEventListener("load", function() {
- if (window._noVNC_has_module_support) return;
- var loader = document.createElement("script");
- loader.src = "vendor/browser-es-module-loader/dist/browser-es-module-loader.js";
- document.head.appendChild(loader);
- });
- </script>
+ <script nomodule src="vendor/browser-es-module-loader/dist/browser-es-module-loader.js"></script>
<!-- actual script modules -->
<script type="module" crossorigin="anonymous">
- // Load supporting scripts
- import * as WebUtil from './app/webutil.js';
+ // RFB holds the API to connect and communicate with a VNC server
import RFB from './core/rfb.js';
- var rfb;
- var desktopName;
+ let rfb;
+ let desktopName;
- function updateDesktopName(e) {
- desktopName = e.detail.name;
+ // When this function is called we have
+ // successfully connected to a server
+ function connectedToServer(e) {
+ status("Connected to " + desktopName);
+ }
+
+ // This function is called when we are disconnected
+ function disconnectedFromServer(e) {
+ if (e.detail.clean) {
+ status("Disconnected");
+ } else {
+ status("Something went wrong, connection is closed");
+ }
}
- function credentials(e) {
- var html;
-
- var form = document.createElement('form');
- form.innerHTML = '<label></label>';
- form.innerHTML += '<input type=password size=10 id="password_input">';
- form.onsubmit = setPassword;
-
- // bypass status() because it sets text content
- document.getElementById('noVNC_status_bar').setAttribute("class", "noVNC_status_warn");
- document.getElementById('noVNC_status').innerHTML = '';
- document.getElementById('noVNC_status').appendChild(form);
- document.getElementById('noVNC_status').querySelector('label').textContent = 'Password Required: ';
+
+ // When this function is called, the server requires
+ // credentials to authenticate
+ function credentialsAreRequired(e) {
+ const password = prompt("Password Required:");
+ rfb.sendCredentials({ password: password });
}
- function setPassword() {
- rfb.sendCredentials({ password: document.getElementById('password_input').value });
- return false;
+
+ // When this function is called we have received
+ // a desktop name from the server
+ function updateDesktopName(e) {
+ desktopName = e.detail.name;
}
+
+ // Since most operating systems will catch Ctrl+Alt+Del
+ // before they get a chance to be intercepted by the browser,
+ // we provide a way to emulate this key sequence.
function sendCtrlAltDel() {
rfb.sendCtrlAltDel();
return false;
}
- function status(text, level) {
- switch (level) {
- case 'normal':
- case 'warn':
- case 'error':
- break;
- default:
- level = "warn";
- }
- document.getElementById('noVNC_status_bar').className = "noVNC_status_" + level;
- document.getElementById('noVNC_status').textContent = text;
- }
- function connected(e) {
- document.getElementById('sendCtrlAltDelButton').disabled = false;
- if (WebUtil.getConfigVar('encrypt',
- (window.location.protocol === "https:"))) {
- status("Connected (encrypted) to " + desktopName, "normal");
- } else {
- status("Connected (unencrypted) to " + desktopName, "normal");
- }
+ // Show a status text in the top bar
+ function status(text) {
+ document.getElementById('status').textContent = text;
}
- function disconnected(e) {
- document.getElementById('sendCtrlAltDelButton').disabled = true;
- if (e.detail.clean) {
- status("Disconnected", "normal");
- } else {
- status("Something went wrong, connection is closed", "error");
+ // This function extracts the value of one variable from the
+ // query string. If the variable isn't defined in the URL
+ // it returns the default value instead.
+ function readQueryVariable(name, defaultValue) {
+ // A URL with a query parameter can look like this:
+ // https://www.example.com?myqueryparam=myvalue
+ //
+ // Note that we use location.href instead of location.search
+ // because Firefox < 53 has a bug w.r.t location.search
+ const re = new RegExp('.*[?&]' + name + '=([^&#]*)'),
+ match = document.location.href.match(re);
+
+ if (match) {
+ // We have to decode the URL since want the cleartext value
+ return decodeURIComponent(match[1]);
}
+
+ return defaultValue;
}
- document.getElementById('sendCtrlAltDelButton').onclick = sendCtrlAltDel;
+ document.getElementById('sendCtrlAltDelButton')
+ .onclick = sendCtrlAltDel;
- WebUtil.init_logging(WebUtil.getConfigVar('logging', 'warn'));
- document.title = WebUtil.getConfigVar('title', 'noVNC');
+ // Read parameters specified in the URL query string
// By default, use the host and port of server that served this file
- var host = WebUtil.getConfigVar('host', window.location.hostname);
- var port = WebUtil.getConfigVar('port', window.location.port);
-
- // if port == 80 (or 443) then it won't be present and should be
- // set manually
- if (!port) {
- if (window.location.protocol.substring(0,5) == 'https') {
- port = 443;
- }
- else if (window.location.protocol.substring(0,4) == 'http') {
- port = 80;
- }
+ const host = readQueryVariable('host', window.location.hostname);
+ let port = readQueryVariable('port', window.location.port);
+ const password = readQueryVariable('password');
+ const path = readQueryVariable('path', 'websockify');
+
+ // | | | | | |
+ // | | | Connect | | |
+ // v v v v v v
+
+ status("Connecting");
+
+ // Build the websocket URL used to connect
+ let url;
+ if (window.location.protocol === "https:") {
+ url = 'wss';
+ } else {
+ url = 'ws';
}
-
- var password = WebUtil.getConfigVar('password', '');
- var path = WebUtil.getConfigVar('path', 'websockify');
-
- // If a token variable is passed in, set the parameter in a cookie.
- // This is used by nova-novncproxy.
- var token = WebUtil.getConfigVar('token', null);
- if (token) {
- // if token is already present in the path we should use it
- path = WebUtil.injectParamIfMissing(path, "token", token);
-
- WebUtil.createCookie('token', token, 1)
+ url += '://' + host;
+ if(port) {
+ url += ':' + port;
}
+ url += '/' + path;
- (function() {
-
- status("Connecting", "normal");
-
- if ((!host) || (!port)) {
- status('Must specify host and port in URL', 'error');
- }
-
- var url;
+ // Creating a new RFB object will start a new connection
+ rfb = new RFB(document.getElementById('screen'), url,
+ { credentials: { password: password } });
- if (WebUtil.getConfigVar('encrypt',
- (window.location.protocol === "https:"))) {
- url = 'wss';
- } else {
- url = 'ws';
- }
+ // Add listeners to important events from the RFB module
+ rfb.addEventListener("connect", connectedToServer);
+ rfb.addEventListener("disconnect", disconnectedFromServer);
+ rfb.addEventListener("credentialsrequired", credentialsAreRequired);
+ rfb.addEventListener("desktopname", updateDesktopName);
- url += '://' + host;
- if(port) {
- url += ':' + port;
- }
- url += '/' + path;
-
- rfb = new RFB(document.body, url,
- { repeaterID: WebUtil.getConfigVar('repeaterID', ''),
- shared: WebUtil.getConfigVar('shared', true),
- credentials: { password: password } });
- rfb.viewOnly = WebUtil.getConfigVar('view_only', false);
- rfb.addEventListener("connect", connected);
- rfb.addEventListener("disconnect", disconnected);
- rfb.addEventListener("credentialsrequired", credentials);
- rfb.addEventListener("desktopname", updateDesktopName);
- rfb.scaleViewport = WebUtil.getConfigVar('scale', false);
- rfb.resizeSession = WebUtil.getConfigVar('resize', false);
- })();
+ // Set parameters that can be changed on an active connection
+ rfb.viewOnly = readQueryVariable('view_only', false);
+ rfb.scaleViewport = readQueryVariable('scale', false);
</script>
</head>
<body>
- <div id="noVNC_status_bar">
- <div id="noVNC_left_dummy_elem"></div>
- <div id="noVNC_status">Loading</div>
- <div id="noVNC_buttons">
- <input type=button value="Send CtrlAltDel"
- id="sendCtrlAltDelButton" class="noVNC_shown">
+ <div id="top_bar">
+ <div id="status">Loading</div>
+ <div id="sendCtrlAltDelButton">Send CtrlAltDel</div>
+ </div>
+ <div id="screen">
+ <!-- This is where the remote screen will appear -->
</div>
- </div>
</body>
</html>