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1 | <!DOCTYPE html> | |
2 | <html lang="en"> | |
3 | <head> | |
4 | ||
5 | <!-- | |
6 | noVNC example: lightweight example using minimal UI and features | |
7 | ||
8 | This is a self-contained file which doesn't import WebUtil or external CSS. | |
9 | ||
10 | Copyright (C) 2018 The noVNC Authors | |
11 | noVNC is licensed under the MPL 2.0 (see LICENSE.txt) | |
12 | This file is licensed under the 2-Clause BSD license (see LICENSE.txt). | |
13 | ||
14 | Connect parameters are provided in query string: | |
15 | http://example.com/?host=HOST&port=PORT&scale=true | |
16 | --> | |
17 | <title>noVNC</title> | |
18 | ||
19 | <meta charset="utf-8"> | |
20 | ||
21 | <style> | |
22 | ||
23 | body { | |
24 | margin: 0; | |
25 | background-color: dimgrey; | |
26 | height: 100%; | |
27 | display: flex; | |
28 | flex-direction: column; | |
29 | } | |
30 | html { | |
31 | height: 100%; | |
32 | } | |
33 | ||
34 | #top_bar { | |
35 | background-color: #6e84a3; | |
36 | color: white; | |
37 | font: bold 12px Helvetica; | |
38 | padding: 6px 5px 4px 5px; | |
39 | border-bottom: 1px outset; | |
40 | } | |
41 | #status { | |
42 | text-align: center; | |
43 | } | |
44 | #sendCtrlAltDelButton { | |
45 | position: fixed; | |
46 | top: 0px; | |
47 | right: 0px; | |
48 | border: 1px outset; | |
49 | padding: 5px 5px 4px 5px; | |
50 | cursor: pointer; | |
51 | } | |
52 | ||
53 | #screen { | |
54 | flex: 1; /* fill remaining space */ | |
55 | overflow: hidden; | |
56 | } | |
57 | ||
58 | </style> | |
59 | ||
60 | <!-- Promise polyfill for IE11 --> | |
61 | <script src="vendor/promise.js"></script> | |
62 | ||
63 | <!-- ES2015/ES6 modules polyfill --> | |
64 | <script type="module"> | |
65 | window._noVNC_has_module_support = true; | |
66 | </script> | |
67 | <script> | |
68 | window.addEventListener("load", function() { | |
69 | if (window._noVNC_has_module_support) return; | |
70 | const loader = document.createElement("script"); | |
71 | loader.src = "vendor/browser-es-module-loader/dist/" + | |
72 | "browser-es-module-loader.js"; | |
73 | document.head.appendChild(loader); | |
74 | }); | |
75 | </script> | |
76 | ||
77 | <!-- actual script modules --> | |
78 | <script type="module" crossorigin="anonymous"> | |
79 | // RFB holds the API to connect and communicate with a VNC server | |
80 | import RFB from './core/rfb.js'; | |
81 | ||
82 | let rfb; | |
83 | let desktopName; | |
84 | ||
85 | // When this function is called we have | |
86 | // successfully connected to a server | |
87 | function connectedToServer(e) { | |
88 | status("Connected to " + desktopName); | |
89 | } | |
90 | ||
91 | // This function is called when we are disconnected | |
92 | function disconnectedFromServer(e) { | |
93 | if (e.detail.clean) { | |
94 | status("Disconnected"); | |
95 | } else { | |
96 | status("Something went wrong, connection is closed"); | |
97 | } | |
98 | } | |
99 | ||
100 | // When this function is called, the server requires | |
101 | // credentials to authenticate | |
102 | function credentialsAreRequired(e) { | |
103 | const password = prompt("Password Required:"); | |
104 | rfb.sendCredentials({ password: password }); | |
105 | } | |
106 | ||
107 | // When this function is called we have received | |
108 | // a desktop name from the server | |
109 | function updateDesktopName(e) { | |
110 | desktopName = e.detail.name; | |
111 | } | |
112 | ||
113 | // Since most operating systems will catch Ctrl+Alt+Del | |
114 | // before they get a chance to be intercepted by the browser, | |
115 | // we provide a way to emulate this key sequence. | |
116 | function sendCtrlAltDel() { | |
117 | rfb.sendCtrlAltDel(); | |
118 | return false; | |
119 | } | |
120 | ||
121 | // Show a status text in the top bar | |
122 | function status(text) { | |
123 | document.getElementById('status').textContent = text; | |
124 | } | |
125 | ||
126 | // This function extracts the value of one variable from the | |
127 | // query string. If the variable isn't defined in the URL | |
128 | // it returns the default value instead. | |
129 | function readQueryVariable(name, defaultValue) { | |
130 | // A URL with a query parameter can look like this: | |
131 | // https://www.example.com?myqueryparam=myvalue | |
132 | // | |
133 | // Note that we use location.href instead of location.search | |
134 | // because Firefox < 53 has a bug w.r.t location.search | |
135 | const re = new RegExp('.*[?&]' + name + '=([^&#]*)'), | |
136 | match = document.location.href.match(re); | |
137 | if (typeof defaultValue === 'undefined') { defaultValue = null; } | |
138 | ||
139 | if (match) { | |
140 | // We have to decode the URL since want the cleartext value | |
141 | return decodeURIComponent(match[1]); | |
142 | } | |
143 | ||
144 | return defaultValue; | |
145 | } | |
146 | ||
147 | document.getElementById('sendCtrlAltDelButton') | |
148 | .onclick = sendCtrlAltDel; | |
149 | ||
150 | // Read parameters specified in the URL query string | |
151 | // By default, use the host and port of server that served this file | |
152 | const host = readQueryVariable('host', window.location.hostname); | |
153 | let port = readQueryVariable('port', window.location.port); | |
154 | const password = readQueryVariable('password', ''); | |
155 | const path = readQueryVariable('path', 'websockify'); | |
156 | ||
157 | // | | | | | | | |
158 | // | | | Connect | | | | |
159 | // v v v v v v | |
160 | ||
161 | status("Connecting"); | |
162 | ||
163 | // Build the websocket URL used to connect | |
164 | let url; | |
165 | if (window.location.protocol === "https:") { | |
166 | url = 'wss'; | |
167 | } else { | |
168 | url = 'ws'; | |
169 | } | |
170 | url += '://' + host; | |
171 | if(port) { | |
172 | url += ':' + port; | |
173 | } | |
174 | url += '/' + path; | |
175 | ||
176 | // Creating a new RFB object will start a new connection | |
177 | rfb = new RFB(document.getElementById('screen'), url, | |
178 | { credentials: { password: password } }); | |
179 | ||
180 | // Add listeners to important events from the RFB module | |
181 | rfb.addEventListener("connect", connectedToServer); | |
182 | rfb.addEventListener("disconnect", disconnectedFromServer); | |
183 | rfb.addEventListener("credentialsrequired", credentialsAreRequired); | |
184 | rfb.addEventListener("desktopname", updateDesktopName); | |
185 | ||
186 | // Set parameters that can be changed on an active connection | |
187 | rfb.viewOnly = readQueryVariable('view_only', false); | |
188 | rfb.scaleViewport = readQueryVariable('scale', false); | |
189 | </script> | |
190 | </head> | |
191 | ||
192 | <body> | |
193 | <div id="top_bar"> | |
194 | <div id="status">Loading</div> | |
195 | <div id="sendCtrlAltDelButton">Send CtrlAltDel</div> | |
196 | </div> | |
197 | <div id="screen"> | |
198 | <!-- This is where the remote screen will appear --> | |
199 | </div> | |
200 | </body> | |
201 | </html> |