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a7a89626 JM |
1 | /* |
2 | * noVNC: HTML5 VNC client | |
d0c29bb6 | 3 | * Copyright (C) 2011 Joel Martin |
5f409eee | 4 | * Licensed under LGPL-3 (see LICENSE.txt) |
a7a89626 JM |
5 | * |
6 | * See README.md for usage and integration instructions. | |
7 | */ | |
8 | ||
9c57ac39 | 9 | /*jslint white: false, browser: true, bitwise: false, plusplus: false */ |
d890e864 | 10 | /*global window, Util, Display, Keyboard, Mouse, Websock, Websock_native, Base64, DES, noVNC_logo */ |
a7a89626 | 11 | |
a7a89626 | 12 | |
5210330a | 13 | function RFB(defaults) { |
d890e864 | 14 | "use strict"; |
8db09746 | 15 | |
5210330a JM |
16 | var that = {}, // Public API methods |
17 | conf = {}, // Configuration attributes | |
8db09746 JM |
18 | |
19 | // Pre-declare private functions used before definitions (jslint) | |
43cf7bd8 JM |
20 | init_vars, updateState, fail, handle_message, |
21 | init_msg, normal_msg, framebufferUpdate, print_stats, | |
8db09746 JM |
22 | |
23 | pixelFormat, clientEncodings, fbUpdateRequest, | |
24 | keyEvent, pointerEvent, clientCutText, | |
25 | ||
d67de767 | 26 | extract_data_uri, scan_tight_imgQ, |
d3796c14 | 27 | keyPress, mouseButton, mouseMove, |
8db09746 | 28 | |
72f1348b | 29 | checkEvents, // Overridable for testing |
8db09746 JM |
30 | |
31 | ||
32 | // | |
33 | // Private RFB namespace variables | |
34 | // | |
35 | rfb_host = '', | |
36 | rfb_port = 5900, | |
37 | rfb_password = '', | |
3b8caa4b | 38 | rfb_uri = '', |
8db09746 JM |
39 | |
40 | rfb_state = 'disconnected', | |
41 | rfb_version = 0, | |
42 | rfb_max_version= 3.8, | |
43 | rfb_auth_scheme= '', | |
8db09746 JM |
44 | |
45 | ||
46 | // In preference order | |
47 | encodings = [ | |
48 | ['COPYRECT', 0x01 ], | |
49 | ['TIGHT_PNG', -260 ], | |
50 | ['HEXTILE', 0x05 ], | |
51 | ['RRE', 0x02 ], | |
52 | ['RAW', 0x00 ], | |
53 | ['DesktopSize', -223 ], | |
54 | ['Cursor', -239 ], | |
55 | ||
56 | // Psuedo-encoding settings | |
57 | ['JPEG_quality_lo', -32 ], | |
58 | //['JPEG_quality_hi', -23 ], | |
59 | ['compress_lo', -255 ] | |
60 | //['compress_hi', -247 ] | |
61 | ], | |
62 | ||
63 | encHandlers = {}, | |
64 | encNames = {}, | |
a679a97d | 65 | encStats = {}, // [rectCnt, rectCntTot] |
8db09746 | 66 | |
72f1348b | 67 | ws = null, // Websock object |
d890e864 | 68 | display = null, // Display object |
d3796c14 JM |
69 | keyboard = null, // Keyboard input handler object |
70 | mouse = null, // Mouse input handler object | |
d67de767 | 71 | sendTimer = null, // Send Queue check timer |
e3efeb32 JM |
72 | connTimer = null, // connection timer |
73 | disconnTimer = null, // disconnection timer | |
d67de767 | 74 | msgTimer = null, // queued handle_message timer |
8db09746 | 75 | |
8db09746 JM |
76 | // Frame buffer update state |
77 | FBU = { | |
78 | rects : 0, | |
ce2b6909 | 79 | subrects : 0, // RRE |
8db09746 JM |
80 | lines : 0, // RAW |
81 | tiles : 0, // HEXTILE | |
82 | bytes : 0, | |
83 | x : 0, | |
84 | y : 0, | |
85 | width : 0, | |
86 | height : 0, | |
87 | encoding : 0, | |
88 | subencoding : -1, | |
89 | background : null, | |
d67de767 | 90 | imgQ : [] // TIGHT_PNG image queue |
8db09746 JM |
91 | }, |
92 | ||
93 | fb_Bpp = 4, | |
94 | fb_depth = 3, | |
95 | fb_width = 0, | |
96 | fb_height = 0, | |
97 | fb_name = "", | |
98 | ||
a4ff1f57 | 99 | scan_imgQ_rate = 40, // 25 times per second or so |
8db09746 JM |
100 | last_req_time = 0, |
101 | rre_chunk_sz = 100, | |
102 | ||
103 | timing = { | |
104 | last_fbu : 0, | |
105 | fbu_total : 0, | |
106 | fbu_total_cnt : 0, | |
107 | full_fbu_total : 0, | |
108 | full_fbu_cnt : 0, | |
109 | ||
110 | fbu_rt_start : 0, | |
111 | fbu_rt_total : 0, | |
d595e656 | 112 | fbu_rt_cnt : 0 |
8db09746 JM |
113 | }, |
114 | ||
115 | test_mode = false, | |
116 | ||
5210330a JM |
117 | def_con_timeout = Websock_native ? 2 : 5, |
118 | ||
8db09746 JM |
119 | /* Mouse state */ |
120 | mouse_buttonMask = 0, | |
121 | mouse_arr = []; | |
122 | ||
5210330a JM |
123 | // Configuration attributes |
124 | Util.conf_defaults(conf, that, defaults, [ | |
125 | ['target', 'wo', 'dom', null, 'VNC display rendering Canvas object'], | |
126 | ['focusContainer', 'wo', 'dom', document, 'DOM element that captures keyboard input'], | |
127 | ||
128 | ['encrypt', 'rw', 'bool', false, 'Use TLS/SSL/wss encryption'], | |
129 | ['true_color', 'rw', 'bool', true, 'Request true color pixel data'], | |
130 | ['local_cursor', 'rw', 'bool', false, 'Request locally rendered cursor'], | |
131 | ['shared', 'rw', 'bool', true, 'Request shared mode'], | |
132 | ||
133 | ['connectTimeout', 'rw', 'int', def_con_timeout, 'Time (s) to wait for connection'], | |
134 | ['disconnectTimeout', 'rw', 'int', 3, 'Time (s) to wait for disconnection'], | |
135 | ||
136 | ['check_rate', 'rw', 'int', 217, 'Timing (ms) of send/receive check'], | |
137 | ['fbu_req_rate', 'rw', 'int', 1413, 'Timing (ms) of frameBufferUpdate requests'], | |
138 | ||
139 | // Callback functions | |
140 | ['onUpdateState', 'rw', 'func', function() { }, | |
141 | 'onUpdateState(rfb, state, oldstate, statusMsg): RFB state update/change '], | |
142 | ['onPasswordRequired', 'rw', 'func', function() { }, | |
143 | 'onPasswordRequired(rfb): VNC password is required '], | |
144 | ['onClipboard', 'rw', 'func', function() { }, | |
145 | 'onClipboard(rfb, text): RFB clipboard contents received'], | |
146 | ['onBell', 'rw', 'func', function() { }, | |
147 | 'onBell(rfb): RFB Bell message received '], | |
148 | ['onFBUReceive', 'rw', 'func', function() { }, | |
149 | 'onFBUReceive(rfb, fbu): RFB FBU received but not yet processed '], | |
150 | ['onFBUComplete', 'rw', 'func', function() { }, | |
151 | 'onFBUComplete(rfb, fbu): RFB FBU received and processed '], | |
152 | ||
153 | // These callback names are deprecated | |
154 | ['updateState', 'rw', 'func', function() { }, | |
155 | 'obsolete, use onUpdateState'], | |
156 | ['clipboardReceive', 'rw', 'func', function() { }, | |
157 | 'obsolete, use onClipboard'] | |
158 | ]); | |
159 | ||
160 | ||
161 | // Override/add some specific configuration getters/setters | |
8db09746 | 162 | that.set_local_cursor = function(cursor) { |
a7a89626 | 163 | if ((!cursor) || (cursor in {'0':1, 'no':1, 'false':1})) { |
8db09746 | 164 | conf.local_cursor = false; |
a7a89626 | 165 | } else { |
d890e864 | 166 | if (display.get_cursor_uri()) { |
8db09746 | 167 | conf.local_cursor = true; |
a7a89626 JM |
168 | } else { |
169 | Util.Warn("Browser does not support local cursor"); | |
170 | } | |
171 | } | |
8db09746 | 172 | }; |
a7a89626 | 173 | |
5210330a JM |
174 | // These are fake configuration getters |
175 | that.get_display = function() { return display; }; | |
a7a89626 | 176 | |
5210330a | 177 | that.get_keyboard = function() { return keyboard; }; |
8db09746 | 178 | |
5210330a | 179 | that.get_mouse = function() { return mouse; }; |
8db09746 JM |
180 | |
181 | ||
60440cee | 182 | |
8db09746 JM |
183 | // |
184 | // Setup routines | |
185 | // | |
186 | ||
d890e864 JM |
187 | // Create the public API interface and initialize values that stay |
188 | // constant across connect/disconnect | |
8db09746 | 189 | function constructor() { |
3b20e7a9 | 190 | var i, rmode; |
67b4e987 | 191 | Util.Debug(">> RFB.constructor"); |
a7a89626 | 192 | |
8db09746 JM |
193 | // Create lookup tables based encoding number |
194 | for (i=0; i < encodings.length; i+=1) { | |
195 | encHandlers[encodings[i][1]] = encHandlers[encodings[i][0]]; | |
196 | encNames[encodings[i][1]] = encodings[i][0]; | |
a679a97d | 197 | encStats[encodings[i][1]] = [0, 0]; |
a7a89626 | 198 | } |
d890e864 | 199 | // Initialize display, mouse, keyboard, and websock |
a7a89626 | 200 | try { |
d890e864 | 201 | display = new Display({'target': conf.target}); |
a7a89626 | 202 | } catch (exc) { |
d890e864 JM |
203 | Util.Error("Display exception: " + exc); |
204 | updateState('fatal', "No working Display"); | |
a7a89626 | 205 | } |
d890e864 JM |
206 | keyboard = new Keyboard({'target': conf.focusContainer, |
207 | 'onKeyPress': keyPress}); | |
208 | mouse = new Mouse({'target': conf.target, | |
209 | 'onMouseButton': mouseButton, | |
210 | 'onMouseMove': mouseMove}); | |
211 | ||
212 | rmode = display.get_render_mode(); | |
213 | ||
214 | if (typeof noVNC_logo !== 'undefined') { | |
215 | display.set_logo(noVNC_logo); | |
216 | } | |
217 | ||
218 | ws = new Websock(); | |
219 | ws.on('message', handle_message); | |
220 | ws.on('open', function() { | |
221 | if (rfb_state === "connect") { | |
222 | updateState('ProtocolVersion', "Starting VNC handshake"); | |
223 | } else { | |
224 | fail("Got unexpected WebSockets connection"); | |
225 | } | |
226 | }); | |
227 | ws.on('close', function() { | |
228 | if (rfb_state === 'disconnect') { | |
229 | updateState('disconnected', 'VNC disconnected'); | |
230 | } else if (rfb_state === 'ProtocolVersion') { | |
231 | fail('Failed to connect to server'); | |
232 | } else if (rfb_state in {'failed':1, 'disconnected':1}) { | |
233 | Util.Error("Received onclose while disconnected"); | |
234 | } else { | |
235 | fail('Server disconnected'); | |
236 | } | |
237 | }); | |
238 | ws.on('error', function(e) { | |
239 | fail("WebSock error: " + e); | |
240 | }); | |
241 | ||
a7a89626 | 242 | |
0d1e1b72 JM |
243 | init_vars(); |
244 | ||
245 | /* Check web-socket-js if no builtin WebSocket support */ | |
72f1348b | 246 | if (Websock_native) { |
0d1e1b72 | 247 | Util.Info("Using native WebSockets"); |
3b20e7a9 | 248 | updateState('loaded', 'noVNC ready: native WebSockets, ' + rmode); |
0d1e1b72 | 249 | } else { |
e3716842 JM |
250 | Util.Warn("Using web-socket-js bridge. Flash version: " + |
251 | Util.Flash.version); | |
0d1e1b72 JM |
252 | if ((! Util.Flash) || |
253 | (Util.Flash.version < 9)) { | |
f8990704 | 254 | updateState('fatal', "WebSockets or <a href='http://get.adobe.com/flashplayer'>Adobe Flash<\/a> is required"); |
0d1e1b72 JM |
255 | } else if (document.location.href.substr(0, 7) === "file://") { |
256 | updateState('fatal', | |
257 | "'file://' URL is incompatible with Adobe Flash"); | |
258 | } else { | |
3b20e7a9 | 259 | updateState('loaded', 'noVNC ready: WebSockets emulation, ' + rmode); |
0d1e1b72 JM |
260 | } |
261 | } | |
262 | ||
67b4e987 | 263 | Util.Debug("<< RFB.constructor"); |
8db09746 JM |
264 | return that; // Return the public API interface |
265 | } | |
a7a89626 | 266 | |
72f1348b JM |
267 | function connect() { |
268 | Util.Debug(">> RFB.connect"); | |
a7a89626 | 269 | |
9c57ac39 | 270 | var uri = ""; |
8db09746 JM |
271 | if (conf.encrypt) { |
272 | uri = "wss://"; | |
273 | } else { | |
274 | uri = "ws://"; | |
275 | } | |
3b8caa4b | 276 | uri += rfb_host + ":" + rfb_port + "/" + rfb_uri; |
8db09746 | 277 | Util.Info("connecting to " + uri); |
72f1348b | 278 | ws.open(uri); |
a7a89626 | 279 | |
72f1348b JM |
280 | Util.Debug("<< RFB.connect"); |
281 | } | |
282 | ||
d890e864 | 283 | // Initialize variables that are reset before each connection |
72f1348b | 284 | init_vars = function() { |
43cf7bd8 JM |
285 | var i; |
286 | ||
72f1348b | 287 | /* Reset state */ |
72f1348b JM |
288 | ws.init(); |
289 | ||
8db09746 JM |
290 | FBU.rects = 0; |
291 | FBU.subrects = 0; // RRE and HEXTILE | |
292 | FBU.lines = 0; // RAW | |
293 | FBU.tiles = 0; // HEXTILE | |
d67de767 | 294 | FBU.imgQ = []; // TIGHT_PNG image queue |
8db09746 JM |
295 | mouse_buttonMask = 0; |
296 | mouse_arr = []; | |
a679a97d JM |
297 | |
298 | // Clear the per connection encoding stats | |
43cf7bd8 | 299 | for (i=0; i < encodings.length; i+=1) { |
a679a97d JM |
300 | encStats[encodings[i][1]][0] = 0; |
301 | } | |
302 | }; | |
303 | ||
304 | // Print statistics | |
305 | print_stats = function() { | |
43cf7bd8 | 306 | var i, s; |
a679a97d JM |
307 | Util.Info("Encoding stats for this connection:"); |
308 | for (i=0; i < encodings.length; i+=1) { | |
309 | s = encStats[encodings[i][1]]; | |
310 | if ((s[0] + s[1]) > 0) { | |
311 | Util.Info(" " + encodings[i][0] + ": " + | |
312 | s[0] + " rects"); | |
313 | } | |
314 | } | |
315 | Util.Info("Encoding stats since page load:"); | |
316 | for (i=0; i < encodings.length; i+=1) { | |
317 | s = encStats[encodings[i][1]]; | |
318 | if ((s[0] + s[1]) > 0) { | |
43cf7bd8 JM |
319 | Util.Info(" " + encodings[i][0] + ": " + |
320 | s[1] + " rects"); | |
a679a97d JM |
321 | } |
322 | } | |
8db09746 JM |
323 | }; |
324 | ||
325 | // | |
326 | // Utility routines | |
327 | // | |
a7a89626 JM |
328 | |
329 | ||
330 | /* | |
8db09746 JM |
331 | * Page states: |
332 | * loaded - page load, equivalent to disconnected | |
d890e864 JM |
333 | * disconnected - idle state |
334 | * connect - starting to connect (to ProtocolVersion) | |
335 | * normal - connected | |
336 | * disconnect - starting to disconnect | |
337 | * failed - abnormal disconnect | |
8db09746 JM |
338 | * fatal - failed to load page, or fatal error |
339 | * | |
d890e864 JM |
340 | * RFB protocol initialization states: |
341 | * ProtocolVersion | |
8db09746 JM |
342 | * Security |
343 | * Authentication | |
e3efeb32 | 344 | * password - waiting for password, not part of RFB |
8db09746 | 345 | * SecurityResult |
1f758e87 | 346 | * ClientInitialization - not triggered by server message |
d890e864 | 347 | * ServerInitialization (to normal) |
a7a89626 | 348 | */ |
8db09746 JM |
349 | updateState = function(state, statusMsg) { |
350 | var func, cmsg, oldstate = rfb_state; | |
e3efeb32 | 351 | |
8db09746 JM |
352 | if (state === oldstate) { |
353 | /* Already here, ignore */ | |
354 | Util.Debug("Already in state '" + state + "', ignoring."); | |
355 | return; | |
356 | } | |
a7a89626 | 357 | |
e3efeb32 JM |
358 | /* |
359 | * These are disconnected states. A previous connect may | |
360 | * asynchronously cause a connection so make sure we are closed. | |
361 | */ | |
362 | if (state in {'disconnected':1, 'loaded':1, 'connect':1, | |
363 | 'disconnect':1, 'failed':1, 'fatal':1}) { | |
364 | if (sendTimer) { | |
365 | clearInterval(sendTimer); | |
366 | sendTimer = null; | |
367 | } | |
368 | ||
369 | if (msgTimer) { | |
370 | clearInterval(msgTimer); | |
371 | msgTimer = null; | |
372 | } | |
373 | ||
d890e864 | 374 | if (display && display.get_context()) { |
d3796c14 JM |
375 | keyboard.ungrab(); |
376 | mouse.ungrab(); | |
d890e864 | 377 | display.defaultCursor(); |
159ad55d JM |
378 | if ((Util.get_logging() !== 'debug') || |
379 | (state === 'loaded')) { | |
380 | // Show noVNC logo on load and when disconnected if | |
381 | // debug is off | |
d890e864 | 382 | display.clear(); |
159ad55d | 383 | } |
e3efeb32 JM |
384 | } |
385 | ||
72f1348b | 386 | ws.close(); |
e3efeb32 JM |
387 | } |
388 | ||
8db09746 JM |
389 | if (oldstate === 'fatal') { |
390 | Util.Error("Fatal error, cannot continue"); | |
391 | } | |
a7a89626 | 392 | |
8db09746 JM |
393 | if ((state === 'failed') || (state === 'fatal')) { |
394 | func = Util.Error; | |
395 | } else { | |
396 | func = Util.Warn; | |
397 | } | |
a7a89626 | 398 | |
8db09746 JM |
399 | if ((oldstate === 'failed') && (state === 'disconnected')) { |
400 | // Do disconnect action, but stay in failed state. | |
401 | rfb_state = 'failed'; | |
402 | } else { | |
403 | rfb_state = state; | |
404 | } | |
a7a89626 | 405 | |
e3efeb32 JM |
406 | cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : ""; |
407 | func("New state '" + rfb_state + "', was '" + oldstate + "'." + cmsg); | |
a7a89626 | 408 | |
e3efeb32 JM |
409 | if (connTimer && (rfb_state !== 'connect')) { |
410 | Util.Debug("Clearing connect timer"); | |
411 | clearInterval(connTimer); | |
412 | connTimer = null; | |
413 | } | |
8db09746 | 414 | |
e3efeb32 JM |
415 | if (disconnTimer && (rfb_state !== 'disconnect')) { |
416 | Util.Debug("Clearing disconnect timer"); | |
417 | clearInterval(disconnTimer); | |
418 | disconnTimer = null; | |
419 | } | |
8db09746 | 420 | |
e3efeb32 JM |
421 | switch (state) { |
422 | case 'normal': | |
423 | if ((oldstate === 'disconnected') || (oldstate === 'failed')) { | |
424 | Util.Error("Invalid transition from 'disconnected' or 'failed' to 'normal'"); | |
a7a89626 JM |
425 | } |
426 | ||
a7a89626 JM |
427 | break; |
428 | ||
a7a89626 | 429 | |
8db09746 | 430 | case 'connect': |
e3efeb32 JM |
431 | |
432 | connTimer = setTimeout(function () { | |
ce2b6909 | 433 | fail("Connect timeout"); |
ff36b127 | 434 | }, conf.connectTimeout * 1000); |
a7a89626 | 435 | |
e3efeb32 | 436 | init_vars(); |
72f1348b | 437 | connect(); |
8db09746 | 438 | |
e3efeb32 | 439 | // WebSocket.onopen transitions to 'ProtocolVersion' |
a7a89626 JM |
440 | break; |
441 | ||
a7a89626 | 442 | |
e3efeb32 | 443 | case 'disconnect': |
a7a89626 | 444 | |
ff36b127 JM |
445 | if (! test_mode) { |
446 | disconnTimer = setTimeout(function () { | |
ce2b6909 | 447 | fail("Disconnect timeout"); |
ff36b127 JM |
448 | }, conf.disconnectTimeout * 1000); |
449 | } | |
a7a89626 | 450 | |
a679a97d JM |
451 | print_stats(); |
452 | ||
e3efeb32 | 453 | // WebSocket.onclose transitions to 'disconnected' |
8db09746 | 454 | break; |
a7a89626 | 455 | |
a7a89626 | 456 | |
8db09746 JM |
457 | case 'failed': |
458 | if (oldstate === 'disconnected') { | |
459 | Util.Error("Invalid transition from 'disconnected' to 'failed'"); | |
460 | } | |
461 | if (oldstate === 'normal') { | |
462 | Util.Error("Error while connected."); | |
463 | } | |
464 | if (oldstate === 'init') { | |
465 | Util.Error("Error while initializing."); | |
a7a89626 JM |
466 | } |
467 | ||
8db09746 JM |
468 | // Make sure we transition to disconnected |
469 | setTimeout(function() { updateState('disconnected'); }, 50); | |
470 | ||
a7a89626 | 471 | break; |
a7a89626 JM |
472 | |
473 | ||
8db09746 | 474 | default: |
e3efeb32 | 475 | // No state change action to take |
a7a89626 | 476 | |
8db09746 | 477 | } |
a7a89626 | 478 | |
8db09746 JM |
479 | if ((oldstate === 'failed') && (state === 'disconnected')) { |
480 | // Leave the failed message | |
d890e864 JM |
481 | conf.updateState(that, state, oldstate); // Obsolete |
482 | conf.onUpdateState(that, state, oldstate); | |
8db09746 | 483 | } else { |
d890e864 JM |
484 | conf.updateState(that, state, oldstate, statusMsg); // Obsolete |
485 | conf.onUpdateState(that, state, oldstate, statusMsg); | |
8db09746 JM |
486 | } |
487 | }; | |
43cf7bd8 JM |
488 | |
489 | fail = function(msg) { | |
ce2b6909 JM |
490 | updateState('failed', msg); |
491 | return false; | |
43cf7bd8 | 492 | }; |
8db09746 | 493 | |
43cf7bd8 | 494 | handle_message = function() { |
72f1348b JM |
495 | //Util.Debug(">> handle_message ws.rQlen(): " + ws.rQlen()); |
496 | //Util.Debug("ws.rQslice(0,20): " + ws.rQslice(0,20) + " (" + ws.rQlen() + ")"); | |
497 | if (ws.rQlen() === 0) { | |
8db09746 JM |
498 | Util.Warn("handle_message called on empty receive queue"); |
499 | return; | |
500 | } | |
501 | switch (rfb_state) { | |
502 | case 'disconnected': | |
8db09746 | 503 | case 'failed': |
e3efeb32 | 504 | Util.Error("Got data while disconnected"); |
8db09746 JM |
505 | break; |
506 | case 'normal': | |
72f1348b | 507 | if (normal_msg() && ws.rQlen() > 0) { |
8db09746 | 508 | // true means we can continue processing |
8db09746 | 509 | // Give other events a chance to run |
4ed717ad JM |
510 | if (msgTimer === null) { |
511 | Util.Debug("More data to process, creating timer"); | |
512 | msgTimer = setTimeout(function () { | |
513 | msgTimer = null; | |
514 | handle_message(); | |
515 | }, 10); | |
516 | } else { | |
517 | Util.Debug("More data to process, existing timer"); | |
518 | } | |
8db09746 JM |
519 | } |
520 | break; | |
521 | default: | |
522 | init_msg(); | |
523 | break; | |
524 | } | |
43cf7bd8 | 525 | }; |
8db09746 | 526 | |
8db09746 JM |
527 | |
528 | function genDES(password, challenge) { | |
43cf7bd8 | 529 | var i, passwd = []; |
8db09746 JM |
530 | for (i=0; i < password.length; i += 1) { |
531 | passwd.push(password.charCodeAt(i)); | |
532 | } | |
a9995971 | 533 | return (new DES(passwd)).encrypt(challenge); |
8db09746 JM |
534 | } |
535 | ||
536 | function flushClient() { | |
537 | if (mouse_arr.length > 0) { | |
72f1348b JM |
538 | //send(mouse_arr.concat(fbUpdateRequest(1))); |
539 | ws.send(mouse_arr); | |
8db09746 | 540 | setTimeout(function() { |
72f1348b | 541 | ws.send(fbUpdateRequest(1)); |
8db09746 JM |
542 | }, 50); |
543 | ||
544 | mouse_arr = []; | |
545 | return true; | |
546 | } else { | |
547 | return false; | |
548 | } | |
549 | } | |
550 | ||
551 | // overridable for testing | |
552 | checkEvents = function() { | |
553 | var now; | |
554 | if (rfb_state === 'normal') { | |
555 | if (! flushClient()) { | |
556 | now = new Date().getTime(); | |
557 | if (now > last_req_time + conf.fbu_req_rate) { | |
558 | last_req_time = now; | |
72f1348b | 559 | ws.send(fbUpdateRequest(1)); |
8db09746 JM |
560 | } |
561 | } | |
562 | } | |
563 | setTimeout(checkEvents, conf.check_rate); | |
564 | }; | |
565 | ||
d3796c14 | 566 | keyPress = function(keysym, down) { |
8db09746 JM |
567 | var arr; |
568 | arr = keyEvent(keysym, down); | |
569 | arr = arr.concat(fbUpdateRequest(1)); | |
72f1348b | 570 | ws.send(arr); |
d3796c14 | 571 | }; |
8db09746 | 572 | |
d3796c14 | 573 | mouseButton = function(x, y, down, bmask) { |
8db09746 JM |
574 | if (down) { |
575 | mouse_buttonMask |= bmask; | |
576 | } else { | |
577 | mouse_buttonMask ^= bmask; | |
578 | } | |
579 | mouse_arr = mouse_arr.concat( pointerEvent(x, y) ); | |
580 | flushClient(); | |
d3796c14 | 581 | }; |
8db09746 | 582 | |
d3796c14 | 583 | mouseMove = function(x, y) { |
8db09746 JM |
584 | //Util.Debug('>> mouseMove ' + x + "," + y); |
585 | mouse_arr = mouse_arr.concat( pointerEvent(x, y) ); | |
d3796c14 | 586 | }; |
8db09746 JM |
587 | |
588 | ||
8db09746 JM |
589 | // |
590 | // Server message handlers | |
591 | // | |
592 | ||
593 | // RFB/VNC initialisation message handler | |
594 | init_msg = function() { | |
595 | //Util.Debug(">> init_msg [rfb_state '" + rfb_state + "']"); | |
596 | ||
60440cee | 597 | var strlen, reason, length, sversion, cversion, |
8db09746 | 598 | i, types, num_types, challenge, response, bpp, depth, |
c6fd7153 JM |
599 | big_endian, red_max, green_max, blue_max, red_shift, |
600 | green_shift, blue_shift, true_color, name_length; | |
8db09746 | 601 | |
72f1348b | 602 | //Util.Debug("ws.rQ (" + ws.rQlen() + ") " + ws.rQslice(0)); |
8db09746 JM |
603 | switch (rfb_state) { |
604 | ||
605 | case 'ProtocolVersion' : | |
72f1348b | 606 | if (ws.rQlen() < 12) { |
ce2b6909 | 607 | return fail("Incomplete protocol version"); |
8db09746 | 608 | } |
72f1348b | 609 | sversion = ws.rQshiftStr(12).substr(4,7); |
8db09746 JM |
610 | Util.Info("Server ProtocolVersion: " + sversion); |
611 | switch (sversion) { | |
612 | case "003.003": rfb_version = 3.3; break; | |
1a5dd77d | 613 | case "003.006": rfb_version = 3.3; break; // UltraVNC |
8db09746 JM |
614 | case "003.007": rfb_version = 3.7; break; |
615 | case "003.008": rfb_version = 3.8; break; | |
616 | default: | |
ce2b6909 | 617 | return fail("Invalid server version " + sversion); |
8db09746 JM |
618 | } |
619 | if (rfb_version > rfb_max_version) { | |
620 | rfb_version = rfb_max_version; | |
621 | } | |
622 | ||
623 | if (! test_mode) { | |
4ed717ad | 624 | sendTimer = setInterval(function() { |
8db09746 JM |
625 | // Send updates either at a rate of one update |
626 | // every 50ms, or whatever slower rate the network | |
627 | // can handle. | |
72f1348b | 628 | ws.flush(); |
8db09746 JM |
629 | }, 50); |
630 | } | |
631 | ||
632 | cversion = "00" + parseInt(rfb_version,10) + | |
633 | ".00" + ((rfb_version * 10) % 10); | |
72f1348b | 634 | ws.send_string("RFB " + cversion + "\n"); |
1f758e87 | 635 | updateState('Security', "Sent ProtocolVersion: " + cversion); |
8db09746 JM |
636 | break; |
637 | ||
638 | case 'Security' : | |
639 | if (rfb_version >= 3.7) { | |
1f758e87 | 640 | // Server sends supported list, client decides |
72f1348b JM |
641 | num_types = ws.rQshift8(); |
642 | if (ws.rQwait("security type", num_types, 1)) { return false; } | |
8db09746 | 643 | if (num_types === 0) { |
72f1348b JM |
644 | strlen = ws.rQshift32(); |
645 | reason = ws.rQshiftStr(strlen); | |
ce2b6909 | 646 | return fail("Security failure: " + reason); |
8db09746 JM |
647 | } |
648 | rfb_auth_scheme = 0; | |
72f1348b | 649 | types = ws.rQshiftBytes(num_types); |
8db09746 JM |
650 | Util.Debug("Server security types: " + types); |
651 | for (i=0; i < types.length; i+=1) { | |
652 | if ((types[i] > rfb_auth_scheme) && (types[i] < 3)) { | |
653 | rfb_auth_scheme = types[i]; | |
654 | } | |
655 | } | |
656 | if (rfb_auth_scheme === 0) { | |
ce2b6909 | 657 | return fail("Unsupported security types: " + types); |
8db09746 JM |
658 | } |
659 | ||
72f1348b | 660 | ws.send([rfb_auth_scheme]); |
8db09746 | 661 | } else { |
1f758e87 | 662 | // Server decides |
72f1348b JM |
663 | if (ws.rQwait("security scheme", 4)) { return false; } |
664 | rfb_auth_scheme = ws.rQshift32(); | |
8db09746 JM |
665 | } |
666 | updateState('Authentication', | |
667 | "Authenticating using scheme: " + rfb_auth_scheme); | |
668 | init_msg(); // Recursive fallthrough (workaround JSLint complaint) | |
669 | break; | |
670 | ||
1f758e87 | 671 | // Triggered by fallthough, not by server message |
8db09746 JM |
672 | case 'Authentication' : |
673 | //Util.Debug("Security auth scheme: " + rfb_auth_scheme); | |
674 | switch (rfb_auth_scheme) { | |
675 | case 0: // connection failed | |
72f1348b JM |
676 | if (ws.rQwait("auth reason", 4)) { return false; } |
677 | strlen = ws.rQshift32(); | |
678 | reason = ws.rQshiftStr(strlen); | |
ce2b6909 | 679 | return fail("Auth failure: " + reason); |
8db09746 | 680 | case 1: // no authentication |
1f758e87 JM |
681 | if (rfb_version >= 3.8) { |
682 | updateState('SecurityResult'); | |
683 | return; | |
1f758e87 | 684 | } |
43cf7bd8 | 685 | // Fall through to ClientInitialisation |
8db09746 JM |
686 | break; |
687 | case 2: // VNC authentication | |
688 | if (rfb_password.length === 0) { | |
d890e864 JM |
689 | // Notify via both callbacks since it is kind of |
690 | // a RFB state change and a UI interface issue. | |
8db09746 | 691 | updateState('password', "Password Required"); |
d890e864 | 692 | conf.onPasswordRequired(that); |
8db09746 JM |
693 | return; |
694 | } | |
72f1348b JM |
695 | if (ws.rQwait("auth challenge", 16)) { return false; } |
696 | challenge = ws.rQshiftBytes(16); | |
8db09746 JM |
697 | //Util.Debug("Password: " + rfb_password); |
698 | //Util.Debug("Challenge: " + challenge + | |
699 | // " (" + challenge.length + ")"); | |
700 | response = genDES(rfb_password, challenge); | |
701 | //Util.Debug("Response: " + response + | |
702 | // " (" + response.length + ")"); | |
703 | ||
704 | //Util.Debug("Sending DES encrypted auth response"); | |
72f1348b | 705 | ws.send(response); |
8db09746 | 706 | updateState('SecurityResult'); |
1f758e87 | 707 | return; |
8db09746 | 708 | default: |
ce2b6909 | 709 | fail("Unsupported auth scheme: " + rfb_auth_scheme); |
8db09746 JM |
710 | return; |
711 | } | |
1f758e87 JM |
712 | updateState('ClientInitialisation', "No auth required"); |
713 | init_msg(); // Recursive fallthrough (workaround JSLint complaint) | |
8db09746 JM |
714 | break; |
715 | ||
716 | case 'SecurityResult' : | |
72f1348b JM |
717 | if (ws.rQwait("VNC auth response ", 4)) { return false; } |
718 | switch (ws.rQshift32()) { | |
8db09746 | 719 | case 0: // OK |
1f758e87 | 720 | // Fall through to ClientInitialisation |
8db09746 JM |
721 | break; |
722 | case 1: // failed | |
723 | if (rfb_version >= 3.8) { | |
72f1348b JM |
724 | length = ws.rQshift32(); |
725 | if (ws.rQwait("SecurityResult reason", length, 8)) { | |
60440cee | 726 | return false; |
aa787069 | 727 | } |
72f1348b | 728 | reason = ws.rQshiftStr(length); |
ce2b6909 | 729 | fail(reason); |
8db09746 | 730 | } else { |
ce2b6909 | 731 | fail("Authentication failed"); |
8db09746 JM |
732 | } |
733 | return; | |
734 | case 2: // too-many | |
ce2b6909 | 735 | return fail("Too many auth attempts"); |
8db09746 | 736 | } |
1f758e87 JM |
737 | updateState('ClientInitialisation', "Authentication OK"); |
738 | init_msg(); // Recursive fallthrough (workaround JSLint complaint) | |
739 | break; | |
740 | ||
741 | // Triggered by fallthough, not by server message | |
742 | case 'ClientInitialisation' : | |
72f1348b | 743 | ws.send([conf.shared ? 1 : 0]); // ClientInitialisation |
1f758e87 | 744 | updateState('ServerInitialisation', "Authentication OK"); |
8db09746 JM |
745 | break; |
746 | ||
747 | case 'ServerInitialisation' : | |
72f1348b | 748 | if (ws.rQwait("server initialization", 24)) { return false; } |
8db09746 JM |
749 | |
750 | /* Screen size */ | |
72f1348b JM |
751 | fb_width = ws.rQshift16(); |
752 | fb_height = ws.rQshift16(); | |
8db09746 JM |
753 | |
754 | /* PIXEL_FORMAT */ | |
72f1348b JM |
755 | bpp = ws.rQshift8(); |
756 | depth = ws.rQshift8(); | |
757 | big_endian = ws.rQshift8(); | |
758 | true_color = ws.rQshift8(); | |
8db09746 | 759 | |
c6fd7153 JM |
760 | red_max = ws.rQshift16(); |
761 | green_max = ws.rQshift16(); | |
762 | blue_max = ws.rQshift16(); | |
763 | red_shift = ws.rQshift8(); | |
764 | green_shift = ws.rQshift8(); | |
765 | blue_shift = ws.rQshift8(); | |
766 | ws.rQshiftStr(3); // padding | |
767 | ||
8db09746 JM |
768 | Util.Info("Screen: " + fb_width + "x" + fb_height + |
769 | ", bpp: " + bpp + ", depth: " + depth + | |
770 | ", big_endian: " + big_endian + | |
c6fd7153 JM |
771 | ", true_color: " + true_color + |
772 | ", red_max: " + red_max + | |
773 | ", green_max: " + green_max + | |
774 | ", blue_max: " + blue_max + | |
775 | ", red_shift: " + red_shift + | |
776 | ", green_shift: " + green_shift + | |
777 | ", blue_shift: " + blue_shift); | |
8db09746 JM |
778 | |
779 | /* Connection name/title */ | |
72f1348b JM |
780 | name_length = ws.rQshift32(); |
781 | fb_name = ws.rQshiftStr(name_length); | |
8db09746 | 782 | |
d890e864 JM |
783 | display.set_true_color(conf.true_color); |
784 | display.resize(fb_width, fb_height); | |
d3796c14 JM |
785 | keyboard.grab(); |
786 | mouse.grab(); | |
8db09746 JM |
787 | |
788 | if (conf.true_color) { | |
789 | fb_Bpp = 4; | |
790 | fb_depth = 3; | |
791 | } else { | |
792 | fb_Bpp = 1; | |
793 | fb_depth = 1; | |
794 | } | |
795 | ||
796 | response = pixelFormat(); | |
797 | response = response.concat(clientEncodings()); | |
798 | response = response.concat(fbUpdateRequest(0)); | |
799 | timing.fbu_rt_start = (new Date()).getTime(); | |
72f1348b | 800 | ws.send(response); |
8db09746 JM |
801 | |
802 | /* Start pushing/polling */ | |
803 | setTimeout(checkEvents, conf.check_rate); | |
d67de767 | 804 | setTimeout(scan_tight_imgQ, scan_imgQ_rate); |
8db09746 JM |
805 | |
806 | if (conf.encrypt) { | |
807 | updateState('normal', "Connected (encrypted) to: " + fb_name); | |
808 | } else { | |
809 | updateState('normal', "Connected (unencrypted) to: " + fb_name); | |
810 | } | |
811 | break; | |
812 | } | |
813 | //Util.Debug("<< init_msg"); | |
814 | }; | |
815 | ||
816 | ||
817 | /* Normal RFB/VNC server message handler */ | |
818 | normal_msg = function() { | |
819 | //Util.Debug(">> normal_msg"); | |
820 | ||
d890e864 | 821 | var ret = true, msg_type, length, text, |
8db09746 JM |
822 | c, first_colour, num_colours, red, green, blue; |
823 | ||
8db09746 JM |
824 | if (FBU.rects > 0) { |
825 | msg_type = 0; | |
a7a89626 | 826 | } else { |
72f1348b | 827 | msg_type = ws.rQshift8(); |
a7a89626 JM |
828 | } |
829 | switch (msg_type) { | |
830 | case 0: // FramebufferUpdate | |
8db09746 | 831 | ret = framebufferUpdate(); // false means need more data |
a7a89626 JM |
832 | break; |
833 | case 1: // SetColourMapEntries | |
834 | Util.Debug("SetColourMapEntries"); | |
72f1348b JM |
835 | ws.rQshift8(); // Padding |
836 | first_colour = ws.rQshift16(); // First colour | |
837 | num_colours = ws.rQshift16(); | |
a7a89626 | 838 | for (c=0; c < num_colours; c+=1) { |
72f1348b | 839 | red = ws.rQshift16(); |
a7a89626 JM |
840 | //Util.Debug("red before: " + red); |
841 | red = parseInt(red / 256, 10); | |
842 | //Util.Debug("red after: " + red); | |
72f1348b JM |
843 | green = parseInt(ws.rQshift16() / 256, 10); |
844 | blue = parseInt(ws.rQshift16() / 256, 10); | |
d890e864 JM |
845 | Util.Debug("*** colourMap: " + display.get_colourMap()); |
846 | display.set_colourMap([red, green, blue], first_colour + c); | |
a7a89626 JM |
847 | } |
848 | Util.Info("Registered " + num_colours + " colourMap entries"); | |
d890e864 | 849 | //Util.Debug("colourMap: " + display.get_colourMap()); |
a7a89626 JM |
850 | break; |
851 | case 2: // Bell | |
d890e864 JM |
852 | Util.Debug("Bell"); |
853 | conf.onBell(that); | |
a7a89626 JM |
854 | break; |
855 | case 3: // ServerCutText | |
856 | Util.Debug("ServerCutText"); | |
72f1348b JM |
857 | if (ws.rQwait("ServerCutText header", 7, 1)) { return false; } |
858 | ws.rQshiftBytes(3); // Padding | |
859 | length = ws.rQshift32(); | |
860 | if (ws.rQwait("ServerCutText", length, 8)) { return false; } | |
60440cee | 861 | |
d890e864 JM |
862 | text = ws.rQshiftStr(length); |
863 | conf.clipboardReceive(that, text); // Obsolete | |
864 | conf.onClipboard(that, text); | |
a7a89626 JM |
865 | break; |
866 | default: | |
ce2b6909 | 867 | fail("Disconnected: illegal server message type " + msg_type); |
72f1348b | 868 | Util.Debug("ws.rQslice(0,30):" + ws.rQslice(0,30)); |
a7a89626 JM |
869 | break; |
870 | } | |
871 | //Util.Debug("<< normal_msg"); | |
872 | return ret; | |
8db09746 | 873 | }; |
a7a89626 | 874 | |
8db09746 | 875 | framebufferUpdate = function() { |
ce2b6909 | 876 | var now, hdr, fbu_rt_diff, ret = true; |
a7a89626 JM |
877 | |
878 | if (FBU.rects === 0) { | |
72f1348b JM |
879 | //Util.Debug("New FBU: ws.rQslice(0,20): " + ws.rQslice(0,20)); |
880 | if (ws.rQwait("FBU header", 3)) { | |
881 | ws.rQunshift8(0); // FBU msg_type | |
a7a89626 JM |
882 | return false; |
883 | } | |
72f1348b JM |
884 | ws.rQshift8(); // padding |
885 | FBU.rects = ws.rQshift16(); | |
a7a89626 JM |
886 | //Util.Debug("FramebufferUpdate, rects:" + FBU.rects); |
887 | FBU.bytes = 0; | |
888 | timing.cur_fbu = 0; | |
a7a89626 JM |
889 | if (timing.fbu_rt_start > 0) { |
890 | now = (new Date()).getTime(); | |
891 | Util.Info("First FBU latency: " + (now - timing.fbu_rt_start)); | |
892 | } | |
893 | } | |
894 | ||
42b2246c | 895 | while (FBU.rects > 0) { |
8db09746 | 896 | if (rfb_state !== "normal") { |
42b2246c JM |
897 | return false; |
898 | } | |
72f1348b | 899 | if (ws.rQwait("FBU", FBU.bytes)) { return false; } |
a7a89626 | 900 | if (FBU.bytes === 0) { |
72f1348b | 901 | if (ws.rQwait("rect header", 12)) { return false; } |
a7a89626 | 902 | /* New FramebufferUpdate */ |
4ed717ad | 903 | |
72f1348b | 904 | hdr = ws.rQshiftBytes(12); |
4ed717ad JM |
905 | FBU.x = (hdr[0] << 8) + hdr[1]; |
906 | FBU.y = (hdr[2] << 8) + hdr[3]; | |
907 | FBU.width = (hdr[4] << 8) + hdr[5]; | |
908 | FBU.height = (hdr[6] << 8) + hdr[7]; | |
909 | FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
910 | (hdr[10] << 8) + hdr[11], 10); | |
a7a89626 | 911 | |
d890e864 JM |
912 | conf.onFBUReceive(that, |
913 | {'x': FBU.x, 'y': FBU.y, | |
914 | 'width': FBU.width, 'height': FBU.height, | |
915 | 'encoding': FBU.encoding, | |
916 | 'encodingName': encNames[FBU.encoding]}); | |
917 | ||
8db09746 | 918 | if (encNames[FBU.encoding]) { |
a7a89626 JM |
919 | // Debug: |
920 | /* | |
921 | var msg = "FramebufferUpdate rects:" + FBU.rects; | |
9c57ac39 | 922 | msg += " x: " + FBU.x + " y: " + FBU.y; |
a7a89626 JM |
923 | msg += " width: " + FBU.width + " height: " + FBU.height; |
924 | msg += " encoding:" + FBU.encoding; | |
8db09746 | 925 | msg += "(" + encNames[FBU.encoding] + ")"; |
72f1348b | 926 | msg += ", ws.rQlen(): " + ws.rQlen(); |
a7a89626 JM |
927 | Util.Debug(msg); |
928 | */ | |
929 | } else { | |
ce2b6909 JM |
930 | fail("Disconnected: unsupported encoding " + |
931 | FBU.encoding); | |
a7a89626 JM |
932 | return false; |
933 | } | |
934 | } | |
935 | ||
936 | timing.last_fbu = (new Date()).getTime(); | |
a7a89626 | 937 | |
8db09746 | 938 | ret = encHandlers[FBU.encoding](); |
a7a89626 JM |
939 | |
940 | now = (new Date()).getTime(); | |
941 | timing.cur_fbu += (now - timing.last_fbu); | |
a7a89626 | 942 | |
a679a97d JM |
943 | if (ret) { |
944 | encStats[FBU.encoding][0] += 1; | |
945 | encStats[FBU.encoding][1] += 1; | |
946 | } | |
947 | ||
a7a89626 | 948 | if (FBU.rects === 0) { |
8db09746 JM |
949 | if (((FBU.width === fb_width) && |
950 | (FBU.height === fb_height)) || | |
a7a89626 JM |
951 | (timing.fbu_rt_start > 0)) { |
952 | timing.full_fbu_total += timing.cur_fbu; | |
953 | timing.full_fbu_cnt += 1; | |
954 | Util.Info("Timing of full FBU, cur: " + | |
955 | timing.cur_fbu + ", total: " + | |
956 | timing.full_fbu_total + ", cnt: " + | |
957 | timing.full_fbu_cnt + ", avg: " + | |
958 | (timing.full_fbu_total / | |
959 | timing.full_fbu_cnt)); | |
960 | } | |
961 | if (timing.fbu_rt_start > 0) { | |
962 | fbu_rt_diff = now - timing.fbu_rt_start; | |
963 | timing.fbu_rt_total += fbu_rt_diff; | |
964 | timing.fbu_rt_cnt += 1; | |
965 | Util.Info("full FBU round-trip, cur: " + | |
966 | fbu_rt_diff + ", total: " + | |
967 | timing.fbu_rt_total + ", cnt: " + | |
968 | timing.fbu_rt_cnt + ", avg: " + | |
969 | (timing.fbu_rt_total / | |
970 | timing.fbu_rt_cnt)); | |
971 | timing.fbu_rt_start = 0; | |
972 | } | |
973 | } | |
67b4e987 | 974 | if (! ret) { |
ce2b6909 | 975 | return ret; // false ret means need more data |
67b4e987 | 976 | } |
a7a89626 | 977 | } |
d890e864 JM |
978 | |
979 | conf.onFBUComplete(that, | |
980 | {'x': FBU.x, 'y': FBU.y, | |
981 | 'width': FBU.width, 'height': FBU.height, | |
982 | 'encoding': FBU.encoding, | |
983 | 'encodingName': encNames[FBU.encoding]}); | |
984 | ||
ce2b6909 | 985 | return true; // We finished this FBU |
8db09746 | 986 | }; |
a7a89626 | 987 | |
8db09746 JM |
988 | // |
989 | // FramebufferUpdate encodings | |
990 | // | |
a7a89626 | 991 | |
8db09746 | 992 | encHandlers.RAW = function display_raw() { |
72f1348b | 993 | //Util.Debug(">> display_raw (" + ws.rQlen() + " bytes)"); |
a7a89626 | 994 | |
72f1348b | 995 | var cur_y, cur_height; |
a7a89626 JM |
996 | |
997 | if (FBU.lines === 0) { | |
998 | FBU.lines = FBU.height; | |
999 | } | |
8db09746 | 1000 | FBU.bytes = FBU.width * fb_Bpp; // At least a line |
72f1348b | 1001 | if (ws.rQwait("RAW", FBU.bytes)) { return false; } |
a7a89626 JM |
1002 | cur_y = FBU.y + (FBU.height - FBU.lines); |
1003 | cur_height = Math.min(FBU.lines, | |
72f1348b | 1004 | Math.floor(ws.rQlen()/(FBU.width * fb_Bpp))); |
d890e864 | 1005 | display.blitImage(FBU.x, cur_y, FBU.width, cur_height, |
72f1348b JM |
1006 | ws.get_rQ(), ws.get_rQi()); |
1007 | ws.rQshiftBytes(FBU.width * cur_height * fb_Bpp); | |
a7a89626 JM |
1008 | FBU.lines -= cur_height; |
1009 | ||
1010 | if (FBU.lines > 0) { | |
8db09746 | 1011 | FBU.bytes = FBU.width * fb_Bpp; // At least another line |
a7a89626 JM |
1012 | } else { |
1013 | FBU.rects -= 1; | |
1014 | FBU.bytes = 0; | |
1015 | } | |
72f1348b | 1016 | //Util.Debug("<< display_raw (" + ws.rQlen() + " bytes)"); |
42b2246c | 1017 | return true; |
8db09746 | 1018 | }; |
a7a89626 | 1019 | |
8db09746 | 1020 | encHandlers.COPYRECT = function display_copy_rect() { |
a7a89626 JM |
1021 | //Util.Debug(">> display_copy_rect"); |
1022 | ||
8db09746 | 1023 | var old_x, old_y; |
a7a89626 | 1024 | |
72f1348b JM |
1025 | if (ws.rQwait("COPYRECT", 4)) { return false; } |
1026 | old_x = ws.rQshift16(); | |
1027 | old_y = ws.rQshift16(); | |
d890e864 | 1028 | display.copyImage(old_x, old_y, FBU.x, FBU.y, FBU.width, FBU.height); |
a7a89626 JM |
1029 | FBU.rects -= 1; |
1030 | FBU.bytes = 0; | |
42b2246c | 1031 | return true; |
8db09746 JM |
1032 | }; |
1033 | ||
1034 | encHandlers.RRE = function display_rre() { | |
72f1348b | 1035 | //Util.Debug(">> display_rre (" + ws.rQlen() + " bytes)"); |
8db09746 | 1036 | var color, x, y, width, height, chunk; |
a7a89626 | 1037 | |
a7a89626 | 1038 | if (FBU.subrects === 0) { |
72f1348b JM |
1039 | if (ws.rQwait("RRE", 4+fb_Bpp)) { return false; } |
1040 | FBU.subrects = ws.rQshift32(); | |
1041 | color = ws.rQshiftBytes(fb_Bpp); // Background | |
d890e864 | 1042 | display.fillRect(FBU.x, FBU.y, FBU.width, FBU.height, color); |
a7a89626 | 1043 | } |
72f1348b JM |
1044 | while ((FBU.subrects > 0) && (ws.rQlen() >= (fb_Bpp + 8))) { |
1045 | color = ws.rQshiftBytes(fb_Bpp); | |
1046 | x = ws.rQshift16(); | |
1047 | y = ws.rQshift16(); | |
1048 | width = ws.rQshift16(); | |
1049 | height = ws.rQshift16(); | |
d890e864 | 1050 | display.fillRect(FBU.x + x, FBU.y + y, width, height, color); |
a7a89626 JM |
1051 | FBU.subrects -= 1; |
1052 | } | |
1053 | //Util.Debug(" display_rre: rects: " + FBU.rects + | |
1054 | // ", FBU.subrects: " + FBU.subrects); | |
1055 | ||
1056 | if (FBU.subrects > 0) { | |
8db09746 JM |
1057 | chunk = Math.min(rre_chunk_sz, FBU.subrects); |
1058 | FBU.bytes = (fb_Bpp + 8) * chunk; | |
a7a89626 JM |
1059 | } else { |
1060 | FBU.rects -= 1; | |
1061 | FBU.bytes = 0; | |
1062 | } | |
1063 | //Util.Debug("<< display_rre, FBU.bytes: " + FBU.bytes); | |
42b2246c | 1064 | return true; |
8db09746 | 1065 | }; |
a7a89626 | 1066 | |
8db09746 | 1067 | encHandlers.HEXTILE = function display_hextile() { |
a7a89626 | 1068 | //Util.Debug(">> display_hextile"); |
67b4e987 | 1069 | var subencoding, subrects, tile, color, cur_tile, |
72f1348b JM |
1070 | tile_x, x, w, tile_y, y, h, xy, s, sx, sy, wh, sw, sh, |
1071 | rQ = ws.get_rQ(), rQi = ws.get_rQi(); | |
a7a89626 JM |
1072 | |
1073 | if (FBU.tiles === 0) { | |
1074 | FBU.tiles_x = Math.ceil(FBU.width/16); | |
1075 | FBU.tiles_y = Math.ceil(FBU.height/16); | |
1076 | FBU.total_tiles = FBU.tiles_x * FBU.tiles_y; | |
1077 | FBU.tiles = FBU.total_tiles; | |
1078 | } | |
1079 | ||
72f1348b | 1080 | /* FBU.bytes comes in as 1, ws.rQlen() at least 1 */ |
a7a89626 JM |
1081 | while (FBU.tiles > 0) { |
1082 | FBU.bytes = 1; | |
72f1348b | 1083 | if (ws.rQwait("HEXTILE subencoding", FBU.bytes)) { return false; } |
9c57ac39 | 1084 | subencoding = rQ[rQi]; // Peek |
a7a89626 | 1085 | if (subencoding > 30) { // Raw |
ce2b6909 | 1086 | fail("Disconnected: illegal hextile subencoding " + subencoding); |
72f1348b | 1087 | //Util.Debug("ws.rQslice(0,30):" + ws.rQslice(0,30)); |
42b2246c | 1088 | return false; |
a7a89626 JM |
1089 | } |
1090 | subrects = 0; | |
1091 | cur_tile = FBU.total_tiles - FBU.tiles; | |
1092 | tile_x = cur_tile % FBU.tiles_x; | |
1093 | tile_y = Math.floor(cur_tile / FBU.tiles_x); | |
1094 | x = FBU.x + tile_x * 16; | |
1095 | y = FBU.y + tile_y * 16; | |
1096 | w = Math.min(16, (FBU.x + FBU.width) - x); | |
1097 | h = Math.min(16, (FBU.y + FBU.height) - y); | |
1098 | ||
1099 | /* Figure out how much we are expecting */ | |
1100 | if (subencoding & 0x01) { // Raw | |
1101 | //Util.Debug(" Raw subencoding"); | |
8db09746 | 1102 | FBU.bytes += w * h * fb_Bpp; |
a7a89626 JM |
1103 | } else { |
1104 | if (subencoding & 0x02) { // Background | |
8db09746 | 1105 | FBU.bytes += fb_Bpp; |
a7a89626 JM |
1106 | } |
1107 | if (subencoding & 0x04) { // Foreground | |
8db09746 | 1108 | FBU.bytes += fb_Bpp; |
a7a89626 JM |
1109 | } |
1110 | if (subencoding & 0x08) { // AnySubrects | |
1111 | FBU.bytes += 1; // Since we aren't shifting it off | |
72f1348b | 1112 | if (ws.rQwait("hextile subrects header", FBU.bytes)) { return false; } |
9c57ac39 | 1113 | subrects = rQ[rQi + FBU.bytes-1]; // Peek |
a7a89626 | 1114 | if (subencoding & 0x10) { // SubrectsColoured |
8db09746 | 1115 | FBU.bytes += subrects * (fb_Bpp + 2); |
a7a89626 JM |
1116 | } else { |
1117 | FBU.bytes += subrects * 2; | |
1118 | } | |
1119 | } | |
1120 | } | |
1121 | ||
67b4e987 JM |
1122 | /* |
1123 | Util.Debug(" tile:" + cur_tile + "/" + (FBU.total_tiles - 1) + | |
1124 | " (" + tile_x + "," + tile_y + ")" + | |
1125 | " [" + x + "," + y + "]@" + w + "x" + h + | |
1126 | ", subenc:" + subencoding + | |
1127 | "(last: " + FBU.lastsubencoding + "), subrects:" + | |
1128 | subrects + | |
72f1348b JM |
1129 | ", ws.rQlen():" + ws.rQlen() + ", FBU.bytes:" + FBU.bytes + |
1130 | " last:" + ws.rQslice(FBU.bytes-10, FBU.bytes) + | |
1131 | " next:" + ws.rQslice(FBU.bytes-1, FBU.bytes+10)); | |
67b4e987 | 1132 | */ |
72f1348b | 1133 | if (ws.rQwait("hextile", FBU.bytes)) { return false; } |
a7a89626 JM |
1134 | |
1135 | /* We know the encoding and have a whole tile */ | |
9c57ac39 JM |
1136 | FBU.subencoding = rQ[rQi]; |
1137 | rQi += 1; | |
a7a89626 JM |
1138 | if (FBU.subencoding === 0) { |
1139 | if (FBU.lastsubencoding & 0x01) { | |
1140 | /* Weird: ignore blanks after RAW */ | |
1141 | Util.Debug(" Ignoring blank after RAW"); | |
1142 | } else { | |
d890e864 | 1143 | display.fillRect(x, y, w, h, FBU.background); |
a7a89626 JM |
1144 | } |
1145 | } else if (FBU.subencoding & 0x01) { // Raw | |
d890e864 | 1146 | display.blitImage(x, y, w, h, rQ, rQi); |
9c57ac39 | 1147 | rQi += FBU.bytes - 1; |
a7a89626 JM |
1148 | } else { |
1149 | if (FBU.subencoding & 0x02) { // Background | |
9c57ac39 JM |
1150 | FBU.background = rQ.slice(rQi, rQi + fb_Bpp); |
1151 | rQi += fb_Bpp; | |
a7a89626 JM |
1152 | } |
1153 | if (FBU.subencoding & 0x04) { // Foreground | |
9c57ac39 JM |
1154 | FBU.foreground = rQ.slice(rQi, rQi + fb_Bpp); |
1155 | rQi += fb_Bpp; | |
a7a89626 JM |
1156 | } |
1157 | ||
d890e864 | 1158 | tile = display.getTile(x, y, w, h, FBU.background); |
a7a89626 | 1159 | if (FBU.subencoding & 0x08) { // AnySubrects |
9c57ac39 JM |
1160 | subrects = rQ[rQi]; |
1161 | rQi += 1; | |
a7a89626 JM |
1162 | for (s = 0; s < subrects; s += 1) { |
1163 | if (FBU.subencoding & 0x10) { // SubrectsColoured | |
9c57ac39 JM |
1164 | color = rQ.slice(rQi, rQi + fb_Bpp); |
1165 | rQi += fb_Bpp; | |
a7a89626 JM |
1166 | } else { |
1167 | color = FBU.foreground; | |
1168 | } | |
9c57ac39 JM |
1169 | xy = rQ[rQi]; |
1170 | rQi += 1; | |
a7a89626 JM |
1171 | sx = (xy >> 4); |
1172 | sy = (xy & 0x0f); | |
1173 | ||
9c57ac39 JM |
1174 | wh = rQ[rQi]; |
1175 | rQi += 1; | |
a7a89626 JM |
1176 | sw = (wh >> 4) + 1; |
1177 | sh = (wh & 0x0f) + 1; | |
1178 | ||
d890e864 | 1179 | display.setSubTile(tile, sx, sy, sw, sh, color); |
a7a89626 JM |
1180 | } |
1181 | } | |
d890e864 | 1182 | display.putTile(tile); |
a7a89626 | 1183 | } |
72f1348b | 1184 | ws.set_rQi(rQi); |
a7a89626 JM |
1185 | FBU.lastsubencoding = FBU.subencoding; |
1186 | FBU.bytes = 0; | |
1187 | FBU.tiles -= 1; | |
1188 | } | |
1189 | ||
1190 | if (FBU.tiles === 0) { | |
1191 | FBU.rects -= 1; | |
1192 | } | |
1193 | ||
1194 | //Util.Debug("<< display_hextile"); | |
42b2246c | 1195 | return true; |
8db09746 | 1196 | }; |
a7a89626 JM |
1197 | |
1198 | ||
8db09746 | 1199 | encHandlers.TIGHT_PNG = function display_tight_png() { |
a7a89626 | 1200 | //Util.Debug(">> display_tight_png"); |
8db09746 | 1201 | var ctl, cmode, clength, getCLength, color, img; |
a7a89626 | 1202 | //Util.Debug(" FBU.rects: " + FBU.rects); |
72f1348b | 1203 | //Util.Debug(" starting ws.rQslice(0,20): " + ws.rQslice(0,20) + " (" + ws.rQlen() + ")"); |
a7a89626 JM |
1204 | |
1205 | FBU.bytes = 1; // compression-control byte | |
72f1348b | 1206 | if (ws.rQwait("TIGHT compression-control", FBU.bytes)) { return false; } |
a7a89626 JM |
1207 | |
1208 | // Get 'compact length' header and data size | |
72f1348b | 1209 | getCLength = function (arr) { |
a7a89626 | 1210 | var header = 1, data = 0; |
72f1348b JM |
1211 | data += arr[0] & 0x7f; |
1212 | if (arr[0] & 0x80) { | |
a7a89626 | 1213 | header += 1; |
72f1348b JM |
1214 | data += (arr[1] & 0x7f) << 7; |
1215 | if (arr[1] & 0x80) { | |
a7a89626 | 1216 | header += 1; |
72f1348b | 1217 | data += arr[2] << 14; |
a7a89626 JM |
1218 | } |
1219 | } | |
1220 | return [header, data]; | |
1221 | }; | |
1222 | ||
72f1348b | 1223 | ctl = ws.rQpeek8(); |
a7a89626 JM |
1224 | switch (ctl >> 4) { |
1225 | case 0x08: cmode = "fill"; break; | |
1226 | case 0x09: cmode = "jpeg"; break; | |
1227 | case 0x0A: cmode = "png"; break; | |
1228 | default: throw("Illegal basic compression received, ctl: " + ctl); | |
1229 | } | |
1230 | switch (cmode) { | |
1231 | // fill uses fb_depth because TPIXELs drop the padding byte | |
8db09746 | 1232 | case "fill": FBU.bytes += fb_depth; break; // TPIXEL |
a7a89626 JM |
1233 | case "jpeg": FBU.bytes += 3; break; // max clength |
1234 | case "png": FBU.bytes += 3; break; // max clength | |
1235 | } | |
1236 | ||
72f1348b | 1237 | if (ws.rQwait("TIGHT " + cmode, FBU.bytes)) { return false; } |
a7a89626 | 1238 | |
72f1348b | 1239 | //Util.Debug(" ws.rQslice(0,20): " + ws.rQslice(0,20) + " (" + ws.rQlen() + ")"); |
a7a89626 JM |
1240 | //Util.Debug(" cmode: " + cmode); |
1241 | ||
1242 | // Determine FBU.bytes | |
1243 | switch (cmode) { | |
1244 | case "fill": | |
72f1348b JM |
1245 | ws.rQshift8(); // shift off ctl |
1246 | color = ws.rQshiftBytes(fb_depth); | |
a4ff1f57 JM |
1247 | FBU.imgQ.push({ |
1248 | 'type': 'fill', | |
1249 | 'img': {'complete': true}, | |
1250 | 'x': FBU.x, | |
1251 | 'y': FBU.y, | |
1252 | 'width': FBU.width, | |
1253 | 'height': FBU.height, | |
1254 | 'color': color}); | |
a7a89626 JM |
1255 | break; |
1256 | case "jpeg": | |
1257 | case "png": | |
72f1348b | 1258 | clength = getCLength(ws.rQslice(1, 4)); |
a7a89626 | 1259 | FBU.bytes = 1 + clength[0] + clength[1]; // ctl + clength size + jpeg-data |
72f1348b | 1260 | if (ws.rQwait("TIGHT " + cmode, FBU.bytes)) { return false; } |
a7a89626 JM |
1261 | |
1262 | // We have everything, render it | |
72f1348b JM |
1263 | //Util.Debug(" png, ws.rQlen(): " + ws.rQlen() + ", clength[0]: " + clength[0] + ", clength[1]: " + clength[1]); |
1264 | ws.rQshiftBytes(1 + clength[0]); // shift off ctl + compact length | |
a7a89626 | 1265 | img = new Image(); |
a4ff1f57 JM |
1266 | //img.onload = scan_tight_imgQ; |
1267 | FBU.imgQ.push({ | |
1268 | 'type': 'img', | |
1269 | 'img': img, | |
1270 | 'x': FBU.x, | |
1271 | 'y': FBU.y}); | |
a7a89626 | 1272 | img.src = "data:image/" + cmode + |
72f1348b | 1273 | extract_data_uri(ws.rQshiftBytes(clength[1])); |
a7a89626 JM |
1274 | img = null; |
1275 | break; | |
1276 | } | |
1277 | FBU.bytes = 0; | |
1278 | FBU.rects -= 1; | |
72f1348b | 1279 | //Util.Debug(" ending ws.rQslice(0,20): " + ws.rQslice(0,20) + " (" + ws.rQlen() + ")"); |
a7a89626 | 1280 | //Util.Debug("<< display_tight_png"); |
42b2246c | 1281 | return true; |
8db09746 | 1282 | }; |
a7a89626 | 1283 | |
8db09746 | 1284 | extract_data_uri = function(arr) { |
a7a89626 JM |
1285 | //var i, stra = []; |
1286 | //for (i=0; i< arr.length; i += 1) { | |
1287 | // stra.push(String.fromCharCode(arr[i])); | |
1288 | //} | |
1289 | //return "," + escape(stra.join('')); | |
1290 | return ";base64," + Base64.encode(arr); | |
8db09746 | 1291 | }; |
a7a89626 | 1292 | |
d67de767 | 1293 | scan_tight_imgQ = function() { |
a4ff1f57 | 1294 | var data, imgQ, ctx; |
d890e864 | 1295 | ctx = display.get_context(); |
8db09746 | 1296 | if (rfb_state === 'normal') { |
d67de767 | 1297 | imgQ = FBU.imgQ; |
a4ff1f57 JM |
1298 | while ((imgQ.length > 0) && (imgQ[0].img.complete)) { |
1299 | data = imgQ.shift(); | |
1300 | if (data['type'] === 'fill') { | |
1301 | display.fillRect(data.x, data.y, data.width, data.height, data.color); | |
1302 | } else { | |
1303 | ctx.drawImage(data.img, data.x, data.y); | |
1304 | } | |
a7a89626 | 1305 | } |
d67de767 | 1306 | setTimeout(scan_tight_imgQ, scan_imgQ_rate); |
a7a89626 | 1307 | } |
8db09746 | 1308 | }; |
a7a89626 | 1309 | |
8db09746 JM |
1310 | encHandlers.DesktopSize = function set_desktopsize() { |
1311 | Util.Debug(">> set_desktopsize"); | |
1312 | fb_width = FBU.width; | |
1313 | fb_height = FBU.height; | |
d890e864 | 1314 | display.resize(fb_width, fb_height); |
8db09746 JM |
1315 | timing.fbu_rt_start = (new Date()).getTime(); |
1316 | // Send a new non-incremental request | |
72f1348b | 1317 | ws.send(fbUpdateRequest(0)); |
a7a89626 | 1318 | |
8db09746 JM |
1319 | FBU.bytes = 0; |
1320 | FBU.rects -= 1; | |
a7a89626 | 1321 | |
8db09746 JM |
1322 | Util.Debug("<< set_desktopsize"); |
1323 | return true; | |
1324 | }; | |
a7a89626 | 1325 | |
8db09746 JM |
1326 | encHandlers.Cursor = function set_cursor() { |
1327 | var x, y, w, h, pixelslength, masklength; | |
1328 | //Util.Debug(">> set_cursor"); | |
1329 | x = FBU.x; // hotspot-x | |
1330 | y = FBU.y; // hotspot-y | |
1331 | w = FBU.width; | |
1332 | h = FBU.height; | |
a7a89626 | 1333 | |
8db09746 JM |
1334 | pixelslength = w * h * fb_Bpp; |
1335 | masklength = Math.floor((w + 7) / 8) * h; | |
a7a89626 | 1336 | |
60440cee | 1337 | FBU.bytes = pixelslength + masklength; |
72f1348b | 1338 | if (ws.rQwait("cursor encoding", FBU.bytes)) { return false; } |
a7a89626 | 1339 | |
8db09746 | 1340 | //Util.Debug(" set_cursor, x: " + x + ", y: " + y + ", w: " + w + ", h: " + h); |
a7a89626 | 1341 | |
d890e864 | 1342 | display.changeCursor(ws.rQshiftBytes(pixelslength), |
72f1348b | 1343 | ws.rQshiftBytes(masklength), |
8db09746 | 1344 | x, y, w, h); |
a7a89626 | 1345 | |
8db09746 JM |
1346 | FBU.bytes = 0; |
1347 | FBU.rects -= 1; | |
a7a89626 | 1348 | |
8db09746 JM |
1349 | //Util.Debug("<< set_cursor"); |
1350 | return true; | |
1351 | }; | |
a7a89626 | 1352 | |
8db09746 JM |
1353 | encHandlers.JPEG_quality_lo = function set_jpeg_quality() { |
1354 | Util.Error("Server sent jpeg_quality pseudo-encoding"); | |
1355 | }; | |
a7a89626 | 1356 | |
8db09746 JM |
1357 | encHandlers.compress_lo = function set_compress_level() { |
1358 | Util.Error("Server sent compress level pseudo-encoding"); | |
1359 | }; | |
a7a89626 | 1360 | |
8db09746 JM |
1361 | /* |
1362 | * Client message routines | |
1363 | */ | |
a7a89626 | 1364 | |
8db09746 JM |
1365 | pixelFormat = function() { |
1366 | //Util.Debug(">> pixelFormat"); | |
1367 | var arr; | |
1368 | arr = [0]; // msg-type | |
1369 | arr.push8(0); // padding | |
1370 | arr.push8(0); // padding | |
1371 | arr.push8(0); // padding | |
a7a89626 | 1372 | |
8db09746 JM |
1373 | arr.push8(fb_Bpp * 8); // bits-per-pixel |
1374 | arr.push8(fb_depth * 8); // depth | |
1375 | arr.push8(0); // little-endian | |
1376 | arr.push8(conf.true_color ? 1 : 0); // true-color | |
a7a89626 | 1377 | |
8db09746 JM |
1378 | arr.push16(255); // red-max |
1379 | arr.push16(255); // green-max | |
1380 | arr.push16(255); // blue-max | |
1381 | arr.push8(0); // red-shift | |
1382 | arr.push8(8); // green-shift | |
1383 | arr.push8(16); // blue-shift | |
a7a89626 | 1384 | |
8db09746 JM |
1385 | arr.push8(0); // padding |
1386 | arr.push8(0); // padding | |
1387 | arr.push8(0); // padding | |
1388 | //Util.Debug("<< pixelFormat"); | |
1389 | return arr; | |
1390 | }; | |
a7a89626 | 1391 | |
8db09746 JM |
1392 | clientEncodings = function() { |
1393 | //Util.Debug(">> clientEncodings"); | |
1394 | var arr, i, encList = []; | |
a7a89626 | 1395 | |
8db09746 JM |
1396 | for (i=0; i<encodings.length; i += 1) { |
1397 | if ((encodings[i][0] === "Cursor") && | |
1398 | (! conf.local_cursor)) { | |
1399 | Util.Debug("Skipping Cursor pseudo-encoding"); | |
1400 | } else { | |
1401 | //Util.Debug("Adding encoding: " + encodings[i][0]); | |
1402 | encList.push(encodings[i][1]); | |
1403 | } | |
1404 | } | |
a7a89626 | 1405 | |
8db09746 JM |
1406 | arr = [2]; // msg-type |
1407 | arr.push8(0); // padding | |
a7a89626 | 1408 | |
8db09746 JM |
1409 | arr.push16(encList.length); // encoding count |
1410 | for (i=0; i < encList.length; i += 1) { | |
1411 | arr.push32(encList[i]); | |
1412 | } | |
1413 | //Util.Debug("<< clientEncodings: " + arr); | |
1414 | return arr; | |
1415 | }; | |
a7a89626 | 1416 | |
8db09746 JM |
1417 | fbUpdateRequest = function(incremental, x, y, xw, yw) { |
1418 | //Util.Debug(">> fbUpdateRequest"); | |
1419 | if (!x) { x = 0; } | |
1420 | if (!y) { y = 0; } | |
1421 | if (!xw) { xw = fb_width; } | |
1422 | if (!yw) { yw = fb_height; } | |
1423 | var arr; | |
1424 | arr = [3]; // msg-type | |
1425 | arr.push8(incremental); | |
1426 | arr.push16(x); | |
1427 | arr.push16(y); | |
1428 | arr.push16(xw); | |
1429 | arr.push16(yw); | |
1430 | //Util.Debug("<< fbUpdateRequest"); | |
1431 | return arr; | |
1432 | }; | |
a7a89626 | 1433 | |
8db09746 JM |
1434 | keyEvent = function(keysym, down) { |
1435 | //Util.Debug(">> keyEvent, keysym: " + keysym + ", down: " + down); | |
1436 | var arr; | |
1437 | arr = [4]; // msg-type | |
1438 | arr.push8(down); | |
1439 | arr.push16(0); | |
1440 | arr.push32(keysym); | |
1441 | //Util.Debug("<< keyEvent"); | |
1442 | return arr; | |
1443 | }; | |
a7a89626 | 1444 | |
8db09746 JM |
1445 | pointerEvent = function(x, y) { |
1446 | //Util.Debug(">> pointerEvent, x,y: " + x + "," + y + | |
1447 | // " , mask: " + mouse_buttonMask); | |
1448 | var arr; | |
1449 | arr = [5]; // msg-type | |
1450 | arr.push8(mouse_buttonMask); | |
1451 | arr.push16(x); | |
1452 | arr.push16(y); | |
1453 | //Util.Debug("<< pointerEvent"); | |
1454 | return arr; | |
1455 | }; | |
a7a89626 | 1456 | |
8db09746 JM |
1457 | clientCutText = function(text) { |
1458 | //Util.Debug(">> clientCutText"); | |
67b4e987 | 1459 | var arr, i, n; |
8db09746 JM |
1460 | arr = [6]; // msg-type |
1461 | arr.push8(0); // padding | |
1462 | arr.push8(0); // padding | |
1463 | arr.push8(0); // padding | |
1464 | arr.push32(text.length); | |
67b4e987 JM |
1465 | n = text.length; |
1466 | for (i=0; i < n; i+=1) { | |
1467 | arr.push(text.charCodeAt(i)); | |
1468 | } | |
8db09746 JM |
1469 | //Util.Debug("<< clientCutText:" + arr); |
1470 | return arr; | |
1471 | }; | |
a7a89626 | 1472 | |
a7a89626 | 1473 | |
a7a89626 | 1474 | |
8db09746 JM |
1475 | // |
1476 | // Public API interface functions | |
1477 | // | |
a7a89626 | 1478 | |
3b8caa4b | 1479 | that.connect = function(host, port, password, uri) { |
8db09746 | 1480 | //Util.Debug(">> connect"); |
a7a89626 | 1481 | |
8db09746 JM |
1482 | rfb_host = host; |
1483 | rfb_port = port; | |
1484 | rfb_password = (password !== undefined) ? password : ""; | |
3b8caa4b | 1485 | rfb_uri = (uri !== undefined) ? uri : ""; |
a7a89626 | 1486 | |
8db09746 | 1487 | if ((!rfb_host) || (!rfb_port)) { |
ce2b6909 | 1488 | return fail("Must set host and port"); |
a7a89626 | 1489 | } |
a7a89626 | 1490 | |
8db09746 JM |
1491 | updateState('connect'); |
1492 | //Util.Debug("<< connect"); | |
a7a89626 | 1493 | |
8db09746 | 1494 | }; |
a7a89626 | 1495 | |
8db09746 JM |
1496 | that.disconnect = function() { |
1497 | //Util.Debug(">> disconnect"); | |
e3efeb32 | 1498 | updateState('disconnect', 'Disconnecting'); |
8db09746 JM |
1499 | //Util.Debug("<< disconnect"); |
1500 | }; | |
a7a89626 | 1501 | |
8db09746 JM |
1502 | that.sendPassword = function(passwd) { |
1503 | rfb_password = passwd; | |
1504 | rfb_state = "Authentication"; | |
1505 | setTimeout(init_msg, 1); | |
1506 | }; | |
1507 | ||
1508 | that.sendCtrlAltDel = function() { | |
1509 | if (rfb_state !== "normal") { return false; } | |
1510 | Util.Info("Sending Ctrl-Alt-Del"); | |
1511 | var arr = []; | |
1512 | arr = arr.concat(keyEvent(0xFFE3, 1)); // Control | |
1513 | arr = arr.concat(keyEvent(0xFFE9, 1)); // Alt | |
1514 | arr = arr.concat(keyEvent(0xFFFF, 1)); // Delete | |
1515 | arr = arr.concat(keyEvent(0xFFFF, 0)); // Delete | |
1516 | arr = arr.concat(keyEvent(0xFFE9, 0)); // Alt | |
1517 | arr = arr.concat(keyEvent(0xFFE3, 0)); // Control | |
1518 | arr = arr.concat(fbUpdateRequest(1)); | |
72f1348b | 1519 | ws.send(arr); |
8db09746 JM |
1520 | }; |
1521 | ||
0a1184bd JM |
1522 | // Send a key press. If 'down' is not specified then send a down key |
1523 | // followed by an up key. | |
1524 | that.sendKey = function(code, down) { | |
1525 | if (rfb_state !== "normal") { return false; } | |
1526 | var arr = []; | |
1527 | if (typeof down !== 'undefined') { | |
1528 | Util.Info("Sending key code (" + (down ? "down" : "up") + "): " + code); | |
1529 | arr = arr.concat(keyEvent(code, down ? 1 : 0)); | |
1530 | } else { | |
1531 | Util.Info("Sending key code (down + up): " + code); | |
1532 | arr = arr.concat(keyEvent(code, 1)); | |
1533 | arr = arr.concat(keyEvent(code, 0)); | |
1534 | } | |
1535 | arr = arr.concat(fbUpdateRequest(1)); | |
72f1348b | 1536 | ws.send(arr); |
0a1184bd JM |
1537 | }; |
1538 | ||
8db09746 JM |
1539 | that.clipboardPasteFrom = function(text) { |
1540 | if (rfb_state !== "normal") { return; } | |
1541 | //Util.Debug(">> clipboardPasteFrom: " + text.substr(0,40) + "..."); | |
72f1348b | 1542 | ws.send(clientCutText(text)); |
8db09746 JM |
1543 | //Util.Debug("<< clipboardPasteFrom"); |
1544 | }; | |
1545 | ||
fa8f14d5 | 1546 | // Override internal functions for testing |
72f1348b | 1547 | that.testMode = function(override_send) { |
8db09746 | 1548 | test_mode = true; |
fa8f14d5 | 1549 | that.recv_message = ws.testMode(override_send); |
8db09746 JM |
1550 | |
1551 | checkEvents = function () { /* Stub Out */ }; | |
1552 | that.connect = function(host, port, password) { | |
1553 | rfb_host = host; | |
1554 | rfb_port = port; | |
1555 | rfb_password = password; | |
1556 | updateState('ProtocolVersion', "Starting VNC handshake"); | |
1557 | }; | |
1558 | }; | |
1559 | ||
1560 | ||
1561 | return constructor(); // Return the public API interface | |
a7a89626 | 1562 | |
8db09746 | 1563 | } // End of RFB() |