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a7a89626 JM |
1 | /* |
2 | * noVNC: HTML5 VNC client | |
d58f8b51 | 3 | * Copyright (C) 2012 Joel Martin |
7a16304e | 4 | * Copyright (C) 2016 Samuel Mannehed for Cendio AB |
1d728ace | 5 | * Licensed under MPL 2.0 (see LICENSE.txt) |
a7a89626 JM |
6 | * |
7 | * See README.md for usage and integration instructions. | |
d38db74a MT |
8 | * |
9 | * TIGHT decoder portion: | |
10 | * (c) 2012 Michael Tinglof, Joe Balaz, Les Piech (Mercuri.ca) | |
a7a89626 JM |
11 | */ |
12 | ||
6d6f0db0 SR |
13 | import * as Log from './util/logging.js'; |
14 | import _ from './util/localization.js'; | |
15 | import { decodeUTF8 } from './util/strings.js'; | |
16 | import { set_defaults, make_properties } from './util/properties.js'; | |
3ae0bb09 SR |
17 | import Display from "./display.js"; |
18 | import { Keyboard, Mouse } from "./input/devices.js"; | |
19 | import Websock from "./websock.js"; | |
20 | import Base64 from "./base64.js"; | |
21 | import DES from "./des.js"; | |
22 | import KeyTable from "./input/keysym.js"; | |
23 | import XtScancode from "./input/xtscancodes.js"; | |
fba220c6 | 24 | import Inflator from "./inflator.js"; |
3ae0bb09 | 25 | |
b1dee947 | 26 | /*jslint white: false, browser: true */ |
ae510306 | 27 | /*global window, Util, Display, Keyboard, Mouse, Websock, Websock_native, Base64, DES, KeyTable, Inflator, XtScancode */ |
a7a89626 | 28 | |
3ae0bb09 | 29 | export default function RFB(defaults) { |
b1dee947 | 30 | "use strict"; |
ae510306 SR |
31 | if (!defaults) { |
32 | defaults = {}; | |
33 | } | |
34 | ||
35 | this._rfb_host = ''; | |
36 | this._rfb_port = 5900; | |
37 | this._rfb_password = ''; | |
38 | this._rfb_path = ''; | |
39 | ||
3bb12056 | 40 | this._rfb_connection_state = ''; |
c00ee156 | 41 | this._rfb_init_state = ''; |
ae510306 SR |
42 | this._rfb_version = 0; |
43 | this._rfb_max_version = 3.8; | |
44 | this._rfb_auth_scheme = ''; | |
3bb12056 | 45 | this._rfb_disconnect_reason = ""; |
ae510306 SR |
46 | |
47 | this._rfb_tightvnc = false; | |
48 | this._rfb_xvp_ver = 0; | |
49 | ||
50 | // In preference order | |
51 | this._encodings = [ | |
52 | ['COPYRECT', 0x01 ], | |
53 | ['TIGHT', 0x07 ], | |
54 | ['TIGHT_PNG', -260 ], | |
55 | ['HEXTILE', 0x05 ], | |
56 | ['RRE', 0x02 ], | |
57 | ['RAW', 0x00 ], | |
58 | ||
59 | // Psuedo-encoding settings | |
60 | ||
61 | //['JPEG_quality_lo', -32 ], | |
62 | ['JPEG_quality_med', -26 ], | |
63 | //['JPEG_quality_hi', -23 ], | |
64 | //['compress_lo', -255 ], | |
65 | ['compress_hi', -247 ], | |
66 | ||
67 | ['DesktopSize', -223 ], | |
68 | ['last_rect', -224 ], | |
69 | ['Cursor', -239 ], | |
70 | ['QEMUExtendedKeyEvent', -258 ], | |
71 | ['ExtendedDesktopSize', -308 ], | |
72 | ['xvp', -309 ], | |
73 | ['Fence', -312 ], | |
74 | ['ContinuousUpdates', -313 ] | |
75 | ]; | |
76 | ||
77 | this._encHandlers = {}; | |
78 | this._encNames = {}; | |
79 | this._encStats = {}; | |
80 | ||
81 | this._sock = null; // Websock object | |
82 | this._display = null; // Display object | |
d9ca5e5b | 83 | this._flushing = false; // Display flushing state |
ae510306 SR |
84 | this._keyboard = null; // Keyboard input handler object |
85 | this._mouse = null; // Mouse input handler object | |
86 | this._disconnTimer = null; // disconnection timer | |
ae510306 SR |
87 | |
88 | this._supportsFence = false; | |
89 | ||
90 | this._supportsContinuousUpdates = false; | |
91 | this._enabledContinuousUpdates = false; | |
92 | ||
93 | // Frame buffer update state | |
94 | this._FBU = { | |
95 | rects: 0, | |
96 | subrects: 0, // RRE | |
97 | lines: 0, // RAW | |
98 | tiles: 0, // HEXTILE | |
99 | bytes: 0, | |
100 | x: 0, | |
101 | y: 0, | |
102 | width: 0, | |
103 | height: 0, | |
104 | encoding: 0, | |
105 | subencoding: -1, | |
106 | background: null, | |
107 | zlib: [] // TIGHT zlib streams | |
108 | }; | |
5210330a | 109 | |
ae510306 SR |
110 | this._fb_Bpp = 4; |
111 | this._fb_depth = 3; | |
112 | this._fb_width = 0; | |
113 | this._fb_height = 0; | |
114 | this._fb_name = ""; | |
b1dee947 | 115 | |
ae510306 SR |
116 | this._destBuff = null; |
117 | this._paletteBuff = new Uint8Array(1024); // 256 * 4 (max palette size * max bytes-per-pixel) | |
b1dee947 | 118 | |
ae510306 | 119 | this._rre_chunk_sz = 100; |
b1dee947 | 120 | |
ae510306 SR |
121 | this._timing = { |
122 | last_fbu: 0, | |
123 | fbu_total: 0, | |
124 | fbu_total_cnt: 0, | |
125 | full_fbu_total: 0, | |
126 | full_fbu_cnt: 0, | |
b1dee947 | 127 | |
ae510306 SR |
128 | fbu_rt_start: 0, |
129 | fbu_rt_total: 0, | |
130 | fbu_rt_cnt: 0, | |
131 | pixels: 0 | |
132 | }; | |
133 | ||
134 | this._supportsSetDesktopSize = false; | |
135 | this._screen_id = 0; | |
136 | this._screen_flags = 0; | |
137 | ||
138 | // Mouse state | |
139 | this._mouse_buttonMask = 0; | |
140 | this._mouse_arr = []; | |
141 | this._viewportDragging = false; | |
142 | this._viewportDragPos = {}; | |
143 | this._viewportHasMoved = false; | |
144 | ||
145 | // QEMU Extended Key Event support - default to false | |
146 | this._qemuExtKeyEventSupported = false; | |
147 | ||
148 | // set the default value on user-facing properties | |
6d6f0db0 | 149 | set_defaults(this, defaults, { |
ae510306 SR |
150 | 'target': 'null', // VNC display rendering Canvas object |
151 | 'focusContainer': document, // DOM element that captures keyboard input | |
152 | 'encrypt': false, // Use TLS/SSL/wss encryption | |
153 | 'true_color': true, // Request true color pixel data | |
154 | 'local_cursor': false, // Request locally rendered cursor | |
155 | 'shared': true, // Request shared mode | |
156 | 'view_only': false, // Disable client mouse/keyboard | |
157 | 'xvp_password_sep': '@', // Separator for XVP password fields | |
158 | 'disconnectTimeout': 3, // Time (s) to wait for disconnection | |
159 | 'wsProtocols': ['binary'], // Protocols to use in the WebSocket connection | |
160 | 'repeaterID': '', // [UltraVNC] RepeaterID to connect to | |
161 | 'viewportDrag': false, // Move the viewport on mouse drags | |
162 | ||
163 | // Callback functions | |
3bb12056 | 164 | 'onUpdateState': function () { }, // onUpdateState(rfb, state, oldstate): connection state change |
a7127fee | 165 | 'onNotification': function () { }, // onNotification(rfb, msg, level, options): notification for UI |
3bb12056 | 166 | 'onDisconnected': function () { }, // onDisconnected(rfb, reason): disconnection finished |
7d714b15 | 167 | 'onPasswordRequired': function () { }, // onPasswordRequired(rfb, msg): VNC password is required |
ae510306 SR |
168 | 'onClipboard': function () { }, // onClipboard(rfb, text): RFB clipboard contents received |
169 | 'onBell': function () { }, // onBell(rfb): RFB Bell message received | |
170 | 'onFBUReceive': function () { }, // onFBUReceive(rfb, fbu): RFB FBU received but not yet processed | |
171 | 'onFBUComplete': function () { }, // onFBUComplete(rfb, fbu): RFB FBU received and processed | |
172 | 'onFBResize': function () { }, // onFBResize(rfb, width, height): frame buffer resized | |
173 | 'onDesktopName': function () { }, // onDesktopName(rfb, name): desktop name received | |
174 | 'onXvpInit': function () { } // onXvpInit(version): XVP extensions active for this connection | |
175 | }); | |
176 | ||
177 | // main setup | |
6d6f0db0 | 178 | Log.Debug(">> RFB.constructor"); |
ae510306 SR |
179 | |
180 | // populate encHandlers with bound versions | |
181 | Object.keys(RFB.encodingHandlers).forEach(function (encName) { | |
182 | this._encHandlers[encName] = RFB.encodingHandlers[encName].bind(this); | |
183 | }.bind(this)); | |
184 | ||
185 | // Create lookup tables based on encoding number | |
186 | for (var i = 0; i < this._encodings.length; i++) { | |
187 | this._encHandlers[this._encodings[i][1]] = this._encHandlers[this._encodings[i][0]]; | |
188 | this._encNames[this._encodings[i][1]] = this._encodings[i][0]; | |
189 | this._encStats[this._encodings[i][1]] = [0, 0]; | |
190 | } | |
191 | ||
192 | // NB: nothing that needs explicit teardown should be done | |
193 | // before this point, since this can throw an exception | |
194 | try { | |
d9ca5e5b PO |
195 | this._display = new Display({target: this._target, |
196 | onFlush: this._onFlush.bind(this)}); | |
ae510306 | 197 | } catch (exc) { |
6d6f0db0 | 198 | Log.Error("Display exception: " + exc); |
ae510306 SR |
199 | throw exc; |
200 | } | |
201 | ||
202 | this._keyboard = new Keyboard({target: this._focusContainer, | |
d0703d1b | 203 | onKeyEvent: this._handleKeyEvent.bind(this)}); |
ae510306 SR |
204 | |
205 | this._mouse = new Mouse({target: this._target, | |
206 | onMouseButton: this._handleMouseButton.bind(this), | |
207 | onMouseMove: this._handleMouseMove.bind(this), | |
208 | notify: this._keyboard.sync.bind(this._keyboard)}); | |
209 | ||
210 | this._sock = new Websock(); | |
211 | this._sock.on('message', this._handle_message.bind(this)); | |
212 | this._sock.on('open', function () { | |
c2a4d3ef | 213 | if ((this._rfb_connection_state === 'connecting') && |
c00ee156 SM |
214 | (this._rfb_init_state === '')) { |
215 | this._rfb_init_state = 'ProtocolVersion'; | |
6d6f0db0 | 216 | Log.Debug("Starting VNC handshake"); |
ae510306 | 217 | } else { |
67cd2072 | 218 | this._fail("Unexpected server connection"); |
ae510306 SR |
219 | } |
220 | }.bind(this)); | |
221 | this._sock.on('close', function (e) { | |
6d6f0db0 | 222 | Log.Warn("WebSocket on-close event"); |
ae510306 SR |
223 | var msg = ""; |
224 | if (e.code) { | |
225 | msg = " (code: " + e.code; | |
226 | if (e.reason) { | |
227 | msg += ", reason: " + e.reason; | |
b1dee947 | 228 | } |
ae510306 SR |
229 | msg += ")"; |
230 | } | |
c00ee156 | 231 | switch (this._rfb_connection_state) { |
c2a4d3ef | 232 | case 'disconnecting': |
3bb12056 | 233 | this._updateConnectionState('disconnected'); |
c00ee156 | 234 | break; |
c2a4d3ef | 235 | case 'connecting': |
67cd2072 | 236 | this._fail('Failed to connect to server', msg); |
c00ee156 | 237 | break; |
b45905ab SM |
238 | case 'connected': |
239 | // Handle disconnects that were initiated server-side | |
240 | this._updateConnectionState('disconnecting'); | |
241 | this._updateConnectionState('disconnected'); | |
242 | break; | |
c00ee156 | 243 | case 'disconnected': |
67cd2072 SM |
244 | this._fail("Unexpected server disconnect", |
245 | "Already disconnected: " + msg); | |
c00ee156 SM |
246 | break; |
247 | default: | |
67cd2072 SM |
248 | this._fail("Unexpected server disconnect", |
249 | "Not in any state yet: " + msg); | |
c00ee156 | 250 | break; |
a679a97d | 251 | } |
ae510306 SR |
252 | this._sock.off('close'); |
253 | }.bind(this)); | |
254 | this._sock.on('error', function (e) { | |
6d6f0db0 | 255 | Log.Warn("WebSocket on-error event"); |
ae510306 | 256 | }); |
8db09746 | 257 | |
ae510306 | 258 | this._init_vars(); |
6c145147 | 259 | this._cleanup(); |
ae510306 SR |
260 | |
261 | var rmode = this._display.get_render_mode(); | |
6d6f0db0 | 262 | Log.Info("Using native WebSockets, render mode: " + rmode); |
ae510306 | 263 | |
6d6f0db0 | 264 | Log.Debug("<< RFB.constructor"); |
ae510306 | 265 | }; |
a7a89626 | 266 | |
6d6f0db0 SR |
267 | RFB.prototype = { |
268 | // Public methods | |
269 | connect: function (host, port, password, path) { | |
270 | this._rfb_host = host; | |
271 | this._rfb_port = port; | |
272 | this._rfb_password = (password !== undefined) ? password : ""; | |
273 | this._rfb_path = (path !== undefined) ? path : ""; | |
274 | ||
275 | if (!this._rfb_host || !this._rfb_port) { | |
276 | return this._fail( | |
277 | _("Must set host and port")); | |
278 | } | |
a7a89626 | 279 | |
6d6f0db0 SR |
280 | this._rfb_init_state = ''; |
281 | this._updateConnectionState('connecting'); | |
282 | return true; | |
283 | }, | |
284 | ||
285 | disconnect: function () { | |
286 | this._updateConnectionState('disconnecting'); | |
287 | this._sock.off('error'); | |
288 | this._sock.off('message'); | |
289 | this._sock.off('open'); | |
290 | }, | |
291 | ||
292 | sendPassword: function (passwd) { | |
293 | this._rfb_password = passwd; | |
294 | setTimeout(this._init_msg.bind(this), 0); | |
295 | }, | |
296 | ||
297 | sendCtrlAltDel: function () { | |
298 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } | |
299 | Log.Info("Sending Ctrl-Alt-Del"); | |
300 | ||
94f5cf05 PO |
301 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", true); |
302 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", true); | |
303 | this.sendKey(KeyTable.XK_Delete, "Delete", true); | |
304 | this.sendKey(KeyTable.XK_Delete, "Delete", false); | |
305 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", false); | |
306 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", false); | |
307 | ||
6d6f0db0 SR |
308 | return true; |
309 | }, | |
310 | ||
311 | xvpOp: function (ver, op) { | |
312 | if (this._rfb_xvp_ver < ver) { return false; } | |
313 | Log.Info("Sending XVP operation " + op + " (version " + ver + ")"); | |
314 | this._sock.send_string("\xFA\x00" + String.fromCharCode(ver) + String.fromCharCode(op)); | |
315 | return true; | |
316 | }, | |
317 | ||
318 | xvpShutdown: function () { | |
319 | return this.xvpOp(1, 2); | |
320 | }, | |
321 | ||
322 | xvpReboot: function () { | |
323 | return this.xvpOp(1, 3); | |
324 | }, | |
325 | ||
326 | xvpReset: function () { | |
327 | return this.xvpOp(1, 4); | |
328 | }, | |
329 | ||
330 | // Send a key press. If 'down' is not specified then send a down key | |
331 | // followed by an up key. | |
94f5cf05 | 332 | sendKey: function (keysym, code, down) { |
6d6f0db0 | 333 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } |
94f5cf05 PO |
334 | |
335 | if (down === undefined) { | |
336 | this.sendKey(keysym, code, true); | |
337 | this.sendKey(keysym, code, false); | |
338 | return true; | |
339 | } | |
340 | ||
341 | if (this._qemuExtKeyEventSupported) { | |
342 | var scancode = XtScancode[code]; | |
343 | ||
344 | if (scancode === undefined) { | |
345 | Log.Error('Unable to find a xt scancode for code: ' + code); | |
346 | // FIXME: not in the spec, but this is what | |
347 | // gtk-vnc does | |
348 | scancode = 0; | |
349 | } | |
350 | ||
351 | Log.Info("Sending key (" + (down ? "down" : "up") + "): keysym " + keysym + ", scancode " + scancode); | |
352 | ||
353 | RFB.messages.QEMUExtendedKeyEvent(this._sock, keysym, down, scancode); | |
354 | } else { | |
6d6f0db0 SR |
355 | Log.Info("Sending keysym (" + (down ? "down" : "up") + "): " + keysym); |
356 | RFB.messages.keyEvent(this._sock, keysym, down ? 1 : 0); | |
6d6f0db0 | 357 | } |
94f5cf05 | 358 | |
6d6f0db0 SR |
359 | return true; |
360 | }, | |
361 | ||
362 | clipboardPasteFrom: function (text) { | |
363 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return; } | |
364 | RFB.messages.clientCutText(this._sock, text); | |
365 | }, | |
366 | ||
367 | // Requests a change of remote desktop size. This message is an extension | |
368 | // and may only be sent if we have received an ExtendedDesktopSize message | |
369 | requestDesktopSize: function (width, height) { | |
370 | if (this._rfb_connection_state !== 'connected' || | |
371 | this._view_only) { | |
372 | return false; | |
373 | } | |
e3efeb32 | 374 | |
6d6f0db0 SR |
375 | if (this._supportsSetDesktopSize) { |
376 | RFB.messages.setDesktopSize(this._sock, width, height, | |
377 | this._screen_id, this._screen_flags); | |
378 | this._sock.flush(); | |
4e0c36dd | 379 | return true; |
6d6f0db0 SR |
380 | } else { |
381 | return false; | |
382 | } | |
383 | }, | |
b1dee947 | 384 | |
b1dee947 | 385 | |
6d6f0db0 | 386 | // Private methods |
b0ec6509 | 387 | |
6d6f0db0 SR |
388 | _connect: function () { |
389 | Log.Debug(">> RFB.connect"); | |
390 | this._init_vars(); | |
b0ec6509 | 391 | |
6d6f0db0 SR |
392 | var uri; |
393 | if (typeof UsingSocketIO !== 'undefined') { | |
394 | uri = 'http'; | |
395 | } else { | |
396 | uri = this._encrypt ? 'wss' : 'ws'; | |
397 | } | |
b1dee947 | 398 | |
6d6f0db0 SR |
399 | uri += '://' + this._rfb_host + ':' + this._rfb_port + '/' + this._rfb_path; |
400 | Log.Info("connecting to " + uri); | |
b1dee947 | 401 | |
6d6f0db0 SR |
402 | try { |
403 | // WebSocket.onopen transitions to the RFB init states | |
404 | this._sock.open(uri, this._wsProtocols); | |
405 | } catch (e) { | |
406 | if (e.name === 'SyntaxError') { | |
407 | this._fail("Invalid host or port value given", e); | |
b1dee947 | 408 | } else { |
6d6f0db0 | 409 | this._fail("Error while connecting", e); |
159ad55d | 410 | } |
6d6f0db0 | 411 | } |
e3efeb32 | 412 | |
6d6f0db0 SR |
413 | Log.Debug("<< RFB.connect"); |
414 | }, | |
415 | ||
416 | _disconnect: function () { | |
417 | Log.Debug(">> RFB.disconnect"); | |
418 | this._cleanup(); | |
419 | this._sock.close(); | |
420 | this._print_stats(); | |
421 | Log.Debug("<< RFB.disconnect"); | |
422 | }, | |
423 | ||
424 | _init_vars: function () { | |
425 | // reset state | |
426 | this._FBU.rects = 0; | |
427 | this._FBU.subrects = 0; // RRE and HEXTILE | |
428 | this._FBU.lines = 0; // RAW | |
429 | this._FBU.tiles = 0; // HEXTILE | |
430 | this._FBU.zlibs = []; // TIGHT zlib encoders | |
431 | this._mouse_buttonMask = 0; | |
432 | this._mouse_arr = []; | |
433 | this._rfb_tightvnc = false; | |
434 | ||
435 | // Clear the per connection encoding stats | |
436 | var i; | |
437 | for (i = 0; i < this._encodings.length; i++) { | |
438 | this._encStats[this._encodings[i][1]][0] = 0; | |
439 | } | |
a7a89626 | 440 | |
6d6f0db0 SR |
441 | for (i = 0; i < 4; i++) { |
442 | this._FBU.zlibs[i] = new Inflator(); | |
443 | } | |
444 | }, | |
a7a89626 | 445 | |
6d6f0db0 SR |
446 | _print_stats: function () { |
447 | Log.Info("Encoding stats for this connection:"); | |
448 | var i, s; | |
449 | for (i = 0; i < this._encodings.length; i++) { | |
450 | s = this._encStats[this._encodings[i][1]]; | |
451 | if (s[0] + s[1] > 0) { | |
452 | Log.Info(" " + this._encodings[i][0] + ": " + s[0] + " rects"); | |
b1dee947 | 453 | } |
6d6f0db0 | 454 | } |
a7a89626 | 455 | |
6d6f0db0 SR |
456 | Log.Info("Encoding stats since page load:"); |
457 | for (i = 0; i < this._encodings.length; i++) { | |
458 | s = this._encStats[this._encodings[i][1]]; | |
459 | Log.Info(" " + this._encodings[i][0] + ": " + s[1] + " rects"); | |
460 | } | |
461 | }, | |
462 | ||
463 | _cleanup: function () { | |
464 | if (!this._view_only) { this._keyboard.ungrab(); } | |
465 | if (!this._view_only) { this._mouse.ungrab(); } | |
466 | this._display.defaultCursor(); | |
467 | if (Log.get_logging() !== 'debug') { | |
468 | // Show noVNC logo on load and when disconnected, unless in | |
469 | // debug mode | |
470 | this._display.clear(); | |
471 | } | |
472 | }, | |
473 | ||
474 | /* | |
475 | * Connection states: | |
476 | * connecting | |
477 | * connected | |
478 | * disconnecting | |
479 | * disconnected - permanent state | |
480 | */ | |
481 | _updateConnectionState: function (state) { | |
482 | var oldstate = this._rfb_connection_state; | |
483 | ||
484 | if (state === oldstate) { | |
485 | Log.Debug("Already in state '" + state + "', ignoring"); | |
486 | return; | |
487 | } | |
488 | ||
489 | // The 'disconnected' state is permanent for each RFB object | |
490 | if (oldstate === 'disconnected') { | |
491 | Log.Error("Tried changing state of a disconnected RFB object"); | |
492 | return; | |
493 | } | |
494 | ||
495 | // Ensure proper transitions before doing anything | |
496 | switch (state) { | |
497 | case 'connected': | |
498 | if (oldstate !== 'connecting') { | |
499 | Log.Error("Bad transition to connected state, " + | |
500 | "previous connection state: " + oldstate); | |
501 | return; | |
b1dee947 | 502 | } |
6d6f0db0 | 503 | break; |
a7a89626 | 504 | |
6d6f0db0 SR |
505 | case 'disconnected': |
506 | if (oldstate !== 'disconnecting') { | |
507 | Log.Error("Bad transition to disconnected state, " + | |
508 | "previous connection state: " + oldstate); | |
509 | return; | |
510 | } | |
511 | break; | |
a7a89626 | 512 | |
6d6f0db0 SR |
513 | case 'connecting': |
514 | if (oldstate !== '') { | |
515 | Log.Error("Bad transition to connecting state, " + | |
516 | "previous connection state: " + oldstate); | |
517 | return; | |
518 | } | |
519 | break; | |
b1dee947 | 520 | |
6d6f0db0 SR |
521 | case 'disconnecting': |
522 | if (oldstate !== 'connected' && oldstate !== 'connecting') { | |
523 | Log.Error("Bad transition to disconnecting state, " + | |
524 | "previous connection state: " + oldstate); | |
525 | return; | |
526 | } | |
527 | break; | |
a679a97d | 528 | |
6d6f0db0 SR |
529 | default: |
530 | Log.Error("Unknown connection state: " + state); | |
3bb12056 | 531 | return; |
6d6f0db0 | 532 | } |
b1dee947 | 533 | |
6d6f0db0 | 534 | // State change actions |
3bb12056 | 535 | |
6d6f0db0 SR |
536 | this._rfb_connection_state = state; |
537 | this._onUpdateState(this, state, oldstate); | |
b2e961d4 | 538 | |
6d6f0db0 SR |
539 | var smsg = "New state '" + state + "', was '" + oldstate + "'."; |
540 | Log.Debug(smsg); | |
b2e961d4 | 541 | |
6d6f0db0 SR |
542 | if (this._disconnTimer && state !== 'disconnecting') { |
543 | Log.Debug("Clearing disconnect timer"); | |
544 | clearTimeout(this._disconnTimer); | |
545 | this._disconnTimer = null; | |
3bb12056 | 546 | |
6d6f0db0 SR |
547 | // make sure we don't get a double event |
548 | this._sock.off('close'); | |
549 | } | |
b2e961d4 | 550 | |
6d6f0db0 SR |
551 | switch (state) { |
552 | case 'disconnected': | |
553 | // Call onDisconnected callback after onUpdateState since | |
554 | // we don't know if the UI only displays the latest message | |
555 | if (this._rfb_disconnect_reason !== "") { | |
556 | this._onDisconnected(this, this._rfb_disconnect_reason); | |
557 | } else { | |
558 | // No reason means clean disconnect | |
559 | this._onDisconnected(this); | |
560 | } | |
561 | break; | |
b2e961d4 | 562 | |
6d6f0db0 SR |
563 | case 'connecting': |
564 | this._connect(); | |
565 | break; | |
b2e961d4 | 566 | |
6d6f0db0 SR |
567 | case 'disconnecting': |
568 | this._disconnect(); | |
b2e961d4 | 569 | |
6d6f0db0 SR |
570 | this._disconnTimer = setTimeout(function () { |
571 | this._rfb_disconnect_reason = _("Disconnect timeout"); | |
572 | this._updateConnectionState('disconnected'); | |
573 | }.bind(this), this._disconnectTimeout * 1000); | |
574 | break; | |
575 | } | |
576 | }, | |
577 | ||
578 | /* Print errors and disconnect | |
579 | * | |
580 | * The optional parameter 'details' is used for information that | |
581 | * should be logged but not sent to the user interface. | |
582 | */ | |
583 | _fail: function (msg, details) { | |
584 | var fullmsg = msg; | |
585 | if (typeof details !== 'undefined') { | |
586 | fullmsg = msg + " (" + details + ")"; | |
587 | } | |
588 | switch (this._rfb_connection_state) { | |
589 | case 'disconnecting': | |
590 | Log.Error("Failed when disconnecting: " + fullmsg); | |
591 | break; | |
592 | case 'connected': | |
593 | Log.Error("Failed while connected: " + fullmsg); | |
594 | break; | |
595 | case 'connecting': | |
596 | Log.Error("Failed when connecting: " + fullmsg); | |
597 | break; | |
598 | default: | |
599 | Log.Error("RFB failure: " + fullmsg); | |
600 | break; | |
601 | } | |
602 | this._rfb_disconnect_reason = msg; //This is sent to the UI | |
603 | ||
604 | // Transition to disconnected without waiting for socket to close | |
605 | this._updateConnectionState('disconnecting'); | |
606 | this._updateConnectionState('disconnected'); | |
607 | ||
608 | return false; | |
609 | }, | |
610 | ||
611 | /* | |
612 | * Send a notification to the UI. Valid levels are: | |
613 | * 'normal'|'warn'|'error' | |
614 | * | |
615 | * NOTE: Options could be added in the future. | |
616 | * NOTE: If this function is called multiple times, remember that the | |
617 | * interface could be only showing the latest notification. | |
618 | */ | |
619 | _notification: function(msg, level, options) { | |
620 | switch (level) { | |
621 | case 'normal': | |
622 | case 'warn': | |
623 | case 'error': | |
624 | Log.Debug("Notification[" + level + "]:" + msg); | |
625 | break; | |
626 | default: | |
627 | Log.Error("Invalid notification level: " + level); | |
628 | return; | |
629 | } | |
b2e961d4 | 630 | |
6d6f0db0 SR |
631 | if (options) { |
632 | this._onNotification(this, msg, level, options); | |
633 | } else { | |
634 | this._onNotification(this, msg, level); | |
635 | } | |
636 | }, | |
b1dee947 | 637 | |
6d6f0db0 SR |
638 | _handle_message: function () { |
639 | if (this._sock.rQlen() === 0) { | |
640 | Log.Warn("handle_message called on an empty receive queue"); | |
641 | return; | |
642 | } | |
b1dee947 | 643 | |
6d6f0db0 SR |
644 | switch (this._rfb_connection_state) { |
645 | case 'disconnected': | |
646 | Log.Error("Got data while disconnected"); | |
647 | break; | |
648 | case 'connected': | |
649 | while (true) { | |
650 | if (this._flushing) { | |
651 | break; | |
652 | } | |
653 | if (!this._normal_msg()) { | |
654 | break; | |
655 | } | |
656 | if (this._sock.rQlen() === 0) { | |
657 | break; | |
658 | } | |
659 | } | |
660 | break; | |
661 | default: | |
662 | this._init_msg(); | |
663 | break; | |
664 | } | |
665 | }, | |
3bb12056 | 666 | |
d0703d1b PO |
667 | _handleKeyEvent: function (keysym, code, down) { |
668 | this.sendKey(keysym, code, down); | |
6d6f0db0 | 669 | }, |
06a9ef0c | 670 | |
6d6f0db0 SR |
671 | _handleMouseButton: function (x, y, down, bmask) { |
672 | if (down) { | |
673 | this._mouse_buttonMask |= bmask; | |
674 | } else { | |
675 | this._mouse_buttonMask ^= bmask; | |
676 | } | |
a7127fee | 677 | |
6d6f0db0 SR |
678 | if (this._viewportDrag) { |
679 | if (down && !this._viewportDragging) { | |
680 | this._viewportDragging = true; | |
681 | this._viewportDragPos = {'x': x, 'y': y}; | |
a7127fee | 682 | |
6d6f0db0 | 683 | // Skip sending mouse events |
b1dee947 | 684 | return; |
6d6f0db0 SR |
685 | } else { |
686 | this._viewportDragging = false; | |
8db09746 | 687 | |
6d6f0db0 SR |
688 | // If the viewport didn't actually move, then treat as a mouse click event |
689 | // Send the button down event here, as the button up event is sent at the end of this function | |
690 | if (!this._viewportHasMoved && !this._view_only) { | |
691 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), bmask); | |
692 | } | |
693 | this._viewportHasMoved = false; | |
b1dee947 | 694 | } |
6d6f0db0 | 695 | } |
8db09746 | 696 | |
6d6f0db0 | 697 | if (this._view_only) { return; } // View only, skip mouse events |
8f06673a | 698 | |
6d6f0db0 SR |
699 | if (this._rfb_connection_state !== 'connected') { return; } |
700 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
701 | }, | |
8db09746 | 702 | |
6d6f0db0 SR |
703 | _handleMouseMove: function (x, y) { |
704 | if (this._viewportDragging) { | |
705 | var deltaX = this._viewportDragPos.x - x; | |
706 | var deltaY = this._viewportDragPos.y - y; | |
8db09746 | 707 | |
6d6f0db0 SR |
708 | // The goal is to trigger on a certain physical width, the |
709 | // devicePixelRatio brings us a bit closer but is not optimal. | |
710 | var dragThreshold = 10 * (window.devicePixelRatio || 1); | |
8db09746 | 711 | |
6d6f0db0 SR |
712 | if (this._viewportHasMoved || (Math.abs(deltaX) > dragThreshold || |
713 | Math.abs(deltaY) > dragThreshold)) { | |
714 | this._viewportHasMoved = true; | |
27e77d46 | 715 | |
6d6f0db0 SR |
716 | this._viewportDragPos = {'x': x, 'y': y}; |
717 | this._display.viewportChangePos(deltaX, deltaY); | |
b50f3406 | 718 | } |
8db09746 | 719 | |
6d6f0db0 SR |
720 | // Skip sending mouse events |
721 | return; | |
722 | } | |
b1dee947 | 723 | |
6d6f0db0 | 724 | if (this._view_only) { return; } // View only, skip mouse events |
b1dee947 | 725 | |
6d6f0db0 SR |
726 | if (this._rfb_connection_state !== 'connected') { return; } |
727 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
728 | }, | |
b1dee947 | 729 | |
6d6f0db0 | 730 | // Message Handlers |
27e77d46 | 731 | |
6d6f0db0 SR |
732 | _negotiate_protocol_version: function () { |
733 | if (this._sock.rQlen() < 12) { | |
734 | return this._fail("Error while negotiating with server", | |
735 | "Incomplete protocol version"); | |
736 | } | |
32df3fdb | 737 | |
6d6f0db0 SR |
738 | var sversion = this._sock.rQshiftStr(12).substr(4, 7); |
739 | Log.Info("Server ProtocolVersion: " + sversion); | |
740 | var is_repeater = 0; | |
741 | switch (sversion) { | |
742 | case "000.000": // UltraVNC repeater | |
743 | is_repeater = 1; | |
744 | break; | |
745 | case "003.003": | |
746 | case "003.006": // UltraVNC | |
747 | case "003.889": // Apple Remote Desktop | |
748 | this._rfb_version = 3.3; | |
749 | break; | |
750 | case "003.007": | |
751 | this._rfb_version = 3.7; | |
752 | break; | |
753 | case "003.008": | |
754 | case "004.000": // Intel AMT KVM | |
755 | case "004.001": // RealVNC 4.6 | |
756 | case "005.000": // RealVNC 5.3 | |
757 | this._rfb_version = 3.8; | |
758 | break; | |
759 | default: | |
760 | return this._fail("Unsupported server", | |
761 | "Invalid server version: " + sversion); | |
762 | } | |
8db09746 | 763 | |
6d6f0db0 SR |
764 | if (is_repeater) { |
765 | var repeaterID = this._repeaterID; | |
766 | while (repeaterID.length < 250) { | |
767 | repeaterID += "\0"; | |
b1dee947 | 768 | } |
6d6f0db0 SR |
769 | this._sock.send_string(repeaterID); |
770 | return true; | |
771 | } | |
b1dee947 | 772 | |
6d6f0db0 SR |
773 | if (this._rfb_version > this._rfb_max_version) { |
774 | this._rfb_version = this._rfb_max_version; | |
775 | } | |
b1dee947 | 776 | |
6d6f0db0 SR |
777 | var cversion = "00" + parseInt(this._rfb_version, 10) + |
778 | ".00" + ((this._rfb_version * 10) % 10); | |
779 | this._sock.send_string("RFB " + cversion + "\n"); | |
780 | Log.Debug('Sent ProtocolVersion: ' + cversion); | |
b1dee947 | 781 | |
6d6f0db0 SR |
782 | this._rfb_init_state = 'Security'; |
783 | }, | |
b1dee947 | 784 | |
6d6f0db0 SR |
785 | _negotiate_security: function () { |
786 | // Polyfill since IE and PhantomJS doesn't have | |
787 | // TypedArray.includes() | |
788 | function includes(item, array) { | |
789 | for (var i = 0; i < array.length; i++) { | |
790 | if (array[i] === item) { | |
791 | return true; | |
792 | } | |
b1dee947 | 793 | } |
6d6f0db0 SR |
794 | return false; |
795 | } | |
b1dee947 | 796 | |
6d6f0db0 SR |
797 | if (this._rfb_version >= 3.7) { |
798 | // Server sends supported list, client decides | |
799 | var num_types = this._sock.rQshift8(); | |
800 | if (this._sock.rQwait("security type", num_types, 1)) { return false; } | |
b1dee947 | 801 | |
6d6f0db0 SR |
802 | if (num_types === 0) { |
803 | var strlen = this._sock.rQshift32(); | |
804 | var reason = this._sock.rQshiftStr(strlen); | |
805 | return this._fail("Error while negotiating with server", | |
806 | "Security failure: " + reason); | |
807 | } | |
808 | ||
809 | var types = this._sock.rQshiftBytes(num_types); | |
810 | Log.Debug("Server security types: " + types); | |
811 | ||
812 | // Look for each auth in preferred order | |
813 | this._rfb_auth_scheme = 0; | |
814 | if (includes(1, types)) { | |
815 | this._rfb_auth_scheme = 1; // None | |
816 | } else if (includes(22, types)) { | |
817 | this._rfb_auth_scheme = 22; // XVP | |
818 | } else if (includes(16, types)) { | |
819 | this._rfb_auth_scheme = 16; // Tight | |
820 | } else if (includes(2, types)) { | |
821 | this._rfb_auth_scheme = 2; // VNC Auth | |
822 | } else { | |
823 | return this._fail("Unsupported server", | |
824 | "Unsupported security types: " + types); | |
8db09746 | 825 | } |
b1dee947 | 826 | |
6d6f0db0 SR |
827 | this._sock.send([this._rfb_auth_scheme]); |
828 | } else { | |
829 | // Server decides | |
830 | if (this._sock.rQwait("security scheme", 4)) { return false; } | |
831 | this._rfb_auth_scheme = this._sock.rQshift32(); | |
832 | } | |
b1dee947 | 833 | |
6d6f0db0 SR |
834 | this._rfb_init_state = 'Authentication'; |
835 | Log.Debug('Authenticating using scheme: ' + this._rfb_auth_scheme); | |
b1dee947 | 836 | |
6d6f0db0 SR |
837 | return this._init_msg(); // jump to authentication |
838 | }, | |
b1dee947 | 839 | |
6d6f0db0 SR |
840 | // authentication |
841 | _negotiate_xvp_auth: function () { | |
842 | var xvp_sep = this._xvp_password_sep; | |
843 | var xvp_auth = this._rfb_password.split(xvp_sep); | |
844 | if (xvp_auth.length < 3) { | |
845 | var msg = 'XVP credentials required (user' + xvp_sep + | |
846 | 'target' + xvp_sep + 'password) -- got only ' + this._rfb_password; | |
847 | this._onPasswordRequired(this, msg); | |
848 | return false; | |
849 | } | |
0ee5ca6e | 850 | |
6d6f0db0 SR |
851 | var xvp_auth_str = String.fromCharCode(xvp_auth[0].length) + |
852 | String.fromCharCode(xvp_auth[1].length) + | |
853 | xvp_auth[0] + | |
854 | xvp_auth[1]; | |
855 | this._sock.send_string(xvp_auth_str); | |
856 | this._rfb_password = xvp_auth.slice(2).join(xvp_sep); | |
857 | this._rfb_auth_scheme = 2; | |
858 | return this._negotiate_authentication(); | |
859 | }, | |
860 | ||
861 | _negotiate_std_vnc_auth: function () { | |
862 | if (this._rfb_password.length === 0) { | |
863 | this._onPasswordRequired(this); | |
864 | return false; | |
865 | } | |
b1dee947 | 866 | |
6d6f0db0 SR |
867 | if (this._sock.rQwait("auth challenge", 16)) { return false; } |
868 | ||
869 | // TODO(directxman12): make genDES not require an Array | |
870 | var challenge = Array.prototype.slice.call(this._sock.rQshiftBytes(16)); | |
871 | var response = RFB.genDES(this._rfb_password, challenge); | |
872 | this._sock.send(response); | |
873 | this._rfb_init_state = "SecurityResult"; | |
874 | return true; | |
875 | }, | |
876 | ||
877 | _negotiate_tight_tunnels: function (numTunnels) { | |
878 | var clientSupportedTunnelTypes = { | |
879 | 0: { vendor: 'TGHT', signature: 'NOTUNNEL' } | |
880 | }; | |
881 | var serverSupportedTunnelTypes = {}; | |
882 | // receive tunnel capabilities | |
883 | for (var i = 0; i < numTunnels; i++) { | |
884 | var cap_code = this._sock.rQshift32(); | |
885 | var cap_vendor = this._sock.rQshiftStr(4); | |
886 | var cap_signature = this._sock.rQshiftStr(8); | |
887 | serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature }; | |
888 | } | |
889 | ||
890 | // choose the notunnel type | |
891 | if (serverSupportedTunnelTypes[0]) { | |
892 | if (serverSupportedTunnelTypes[0].vendor != clientSupportedTunnelTypes[0].vendor || | |
893 | serverSupportedTunnelTypes[0].signature != clientSupportedTunnelTypes[0].signature) { | |
894 | return this._fail("Unsupported server", | |
895 | "Client's tunnel type had the incorrect " + | |
896 | "vendor or signature"); | |
b1dee947 | 897 | } |
6d6f0db0 SR |
898 | this._sock.send([0, 0, 0, 0]); // use NOTUNNEL |
899 | return false; // wait until we receive the sub auth count to continue | |
900 | } else { | |
901 | return this._fail("Unsupported server", | |
902 | "Server wanted tunnels, but doesn't support " + | |
903 | "the notunnel type"); | |
904 | } | |
905 | }, | |
b1dee947 | 906 | |
6d6f0db0 SR |
907 | _negotiate_tight_auth: function () { |
908 | if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation | |
909 | if (this._sock.rQwait("num tunnels", 4)) { return false; } | |
910 | var numTunnels = this._sock.rQshift32(); | |
911 | if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; } | |
c00ee156 | 912 | |
6d6f0db0 | 913 | this._rfb_tightvnc = true; |
b1dee947 | 914 | |
6d6f0db0 SR |
915 | if (numTunnels > 0) { |
916 | this._negotiate_tight_tunnels(numTunnels); | |
917 | return false; // wait until we receive the sub auth to continue | |
b1dee947 | 918 | } |
6d6f0db0 | 919 | } |
b1dee947 | 920 | |
6d6f0db0 SR |
921 | // second pass, do the sub-auth negotiation |
922 | if (this._sock.rQwait("sub auth count", 4)) { return false; } | |
923 | var subAuthCount = this._sock.rQshift32(); | |
924 | if (subAuthCount === 0) { // empty sub-auth list received means 'no auth' subtype selected | |
925 | this._rfb_init_state = 'SecurityResult'; | |
926 | return true; | |
927 | } | |
b1dee947 | 928 | |
6d6f0db0 | 929 | if (this._sock.rQwait("sub auth capabilities", 16 * subAuthCount, 4)) { return false; } |
b1dee947 | 930 | |
6d6f0db0 SR |
931 | var clientSupportedTypes = { |
932 | 'STDVNOAUTH__': 1, | |
933 | 'STDVVNCAUTH_': 2 | |
934 | }; | |
b1dee947 | 935 | |
6d6f0db0 | 936 | var serverSupportedTypes = []; |
95eb681b | 937 | |
6d6f0db0 SR |
938 | for (var i = 0; i < subAuthCount; i++) { |
939 | var capNum = this._sock.rQshift32(); | |
940 | var capabilities = this._sock.rQshiftStr(12); | |
941 | serverSupportedTypes.push(capabilities); | |
942 | } | |
d86cc2d9 | 943 | |
6d6f0db0 SR |
944 | for (var authType in clientSupportedTypes) { |
945 | if (serverSupportedTypes.indexOf(authType) != -1) { | |
946 | this._sock.send([0, 0, 0, clientSupportedTypes[authType]]); | |
d86cc2d9 | 947 | |
6d6f0db0 SR |
948 | switch (authType) { |
949 | case 'STDVNOAUTH__': // no auth | |
950 | this._rfb_init_state = 'SecurityResult'; | |
951 | return true; | |
952 | case 'STDVVNCAUTH_': // VNC auth | |
953 | this._rfb_auth_scheme = 2; | |
954 | return this._init_msg(); | |
955 | default: | |
956 | return this._fail("Unsupported server", | |
957 | "Unsupported tiny auth scheme: " + | |
958 | authType); | |
b1dee947 SR |
959 | } |
960 | } | |
6d6f0db0 | 961 | } |
b1dee947 | 962 | |
6d6f0db0 SR |
963 | return this._fail("Unsupported server", |
964 | "No supported sub-auth types!"); | |
965 | }, | |
966 | ||
967 | _negotiate_authentication: function () { | |
968 | switch (this._rfb_auth_scheme) { | |
969 | case 0: // connection failed | |
970 | if (this._sock.rQwait("auth reason", 4)) { return false; } | |
971 | var strlen = this._sock.rQshift32(); | |
972 | var reason = this._sock.rQshiftStr(strlen); | |
973 | return this._fail("Authentication failure", reason); | |
974 | ||
975 | case 1: // no auth | |
976 | if (this._rfb_version >= 3.8) { | |
977 | this._rfb_init_state = 'SecurityResult'; | |
978 | return true; | |
979 | } | |
980 | this._rfb_init_state = 'ClientInitialisation'; | |
981 | return this._init_msg(); | |
95eb681b | 982 | |
6d6f0db0 SR |
983 | case 22: // XVP auth |
984 | return this._negotiate_xvp_auth(); | |
d86cc2d9 | 985 | |
6d6f0db0 SR |
986 | case 2: // VNC authentication |
987 | return this._negotiate_std_vnc_auth(); | |
d86cc2d9 | 988 | |
6d6f0db0 SR |
989 | case 16: // TightVNC Security Type |
990 | return this._negotiate_tight_auth(); | |
d86cc2d9 | 991 | |
6d6f0db0 SR |
992 | default: |
993 | return this._fail("Unsupported server", | |
994 | "Unsupported auth scheme: " + | |
995 | this._rfb_auth_scheme); | |
996 | } | |
997 | }, | |
998 | ||
999 | _handle_security_result: function () { | |
1000 | if (this._sock.rQwait('VNC auth response ', 4)) { return false; } | |
1001 | switch (this._sock.rQshift32()) { | |
1002 | case 0: // OK | |
1003 | this._rfb_init_state = 'ClientInitialisation'; | |
1004 | Log.Debug('Authentication OK'); | |
1005 | return this._init_msg(); | |
1006 | case 1: // failed | |
1007 | if (this._rfb_version >= 3.8) { | |
1008 | var length = this._sock.rQshift32(); | |
1009 | if (this._sock.rQwait("SecurityResult reason", length, 8)) { return false; } | |
1010 | var reason = this._sock.rQshiftStr(length); | |
1011 | return this._fail("Authentication failure", reason); | |
1012 | } else { | |
1013 | return this._fail("Authentication failure"); | |
d86cc2d9 | 1014 | } |
6d6f0db0 SR |
1015 | return false; |
1016 | case 2: | |
1017 | return this._fail("Too many authentication attempts"); | |
1018 | default: | |
1019 | return this._fail("Unsupported server", | |
1020 | "Unknown SecurityResult"); | |
1021 | } | |
1022 | }, | |
1023 | ||
1024 | _negotiate_server_init: function () { | |
1025 | if (this._sock.rQwait("server initialization", 24)) { return false; } | |
1026 | ||
1027 | /* Screen size */ | |
1028 | this._fb_width = this._sock.rQshift16(); | |
1029 | this._fb_height = this._sock.rQshift16(); | |
1030 | this._destBuff = new Uint8Array(this._fb_width * this._fb_height * 4); | |
1031 | ||
1032 | /* PIXEL_FORMAT */ | |
1033 | var bpp = this._sock.rQshift8(); | |
1034 | var depth = this._sock.rQshift8(); | |
1035 | var big_endian = this._sock.rQshift8(); | |
1036 | var true_color = this._sock.rQshift8(); | |
1037 | ||
1038 | var red_max = this._sock.rQshift16(); | |
1039 | var green_max = this._sock.rQshift16(); | |
1040 | var blue_max = this._sock.rQshift16(); | |
1041 | var red_shift = this._sock.rQshift8(); | |
1042 | var green_shift = this._sock.rQshift8(); | |
1043 | var blue_shift = this._sock.rQshift8(); | |
1044 | this._sock.rQskipBytes(3); // padding | |
1045 | ||
1046 | // NB(directxman12): we don't want to call any callbacks or print messages until | |
1047 | // *after* we're past the point where we could backtrack | |
1048 | ||
1049 | /* Connection name/title */ | |
1050 | var name_length = this._sock.rQshift32(); | |
1051 | if (this._sock.rQwait('server init name', name_length, 24)) { return false; } | |
1052 | this._fb_name = decodeUTF8(this._sock.rQshiftStr(name_length)); | |
1053 | ||
1054 | if (this._rfb_tightvnc) { | |
1055 | if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; } | |
1056 | // In TightVNC mode, ServerInit message is extended | |
1057 | var numServerMessages = this._sock.rQshift16(); | |
1058 | var numClientMessages = this._sock.rQshift16(); | |
1059 | var numEncodings = this._sock.rQshift16(); | |
1060 | this._sock.rQskipBytes(2); // padding | |
1061 | ||
1062 | var totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16; | |
1063 | if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; } | |
1064 | ||
1065 | // we don't actually do anything with the capability information that TIGHT sends, | |
1066 | // so we just skip the all of this. | |
1067 | ||
1068 | // TIGHT server message capabilities | |
1069 | this._sock.rQskipBytes(16 * numServerMessages); | |
1070 | ||
1071 | // TIGHT client message capabilities | |
1072 | this._sock.rQskipBytes(16 * numClientMessages); | |
1073 | ||
1074 | // TIGHT encoding capabilities | |
1075 | this._sock.rQskipBytes(16 * numEncodings); | |
1076 | } | |
d86cc2d9 | 1077 | |
6d6f0db0 SR |
1078 | // NB(directxman12): these are down here so that we don't run them multiple times |
1079 | // if we backtrack | |
1080 | Log.Info("Screen: " + this._fb_width + "x" + this._fb_height + | |
1081 | ", bpp: " + bpp + ", depth: " + depth + | |
1082 | ", big_endian: " + big_endian + | |
1083 | ", true_color: " + true_color + | |
1084 | ", red_max: " + red_max + | |
1085 | ", green_max: " + green_max + | |
1086 | ", blue_max: " + blue_max + | |
1087 | ", red_shift: " + red_shift + | |
1088 | ", green_shift: " + green_shift + | |
1089 | ", blue_shift: " + blue_shift); | |
1090 | ||
1091 | if (big_endian !== 0) { | |
1092 | Log.Warn("Server native endian is not little endian"); | |
1093 | } | |
b1dee947 | 1094 | |
6d6f0db0 SR |
1095 | if (red_shift !== 16) { |
1096 | Log.Warn("Server native red-shift is not 16"); | |
1097 | } | |
b1dee947 | 1098 | |
6d6f0db0 SR |
1099 | if (blue_shift !== 0) { |
1100 | Log.Warn("Server native blue-shift is not 0"); | |
1101 | } | |
b1dee947 | 1102 | |
6d6f0db0 SR |
1103 | // we're past the point where we could backtrack, so it's safe to call this |
1104 | this._onDesktopName(this, this._fb_name); | |
b1dee947 | 1105 | |
6d6f0db0 SR |
1106 | if (this._true_color && this._fb_name === "Intel(r) AMT KVM") { |
1107 | Log.Warn("Intel AMT KVM only supports 8/16 bit depths. Disabling true color"); | |
1108 | this._true_color = false; | |
1109 | } | |
b1dee947 | 1110 | |
6d6f0db0 SR |
1111 | this._display.set_true_color(this._true_color); |
1112 | this._display.resize(this._fb_width, this._fb_height); | |
1113 | this._onFBResize(this, this._fb_width, this._fb_height); | |
b1dee947 | 1114 | |
6d6f0db0 SR |
1115 | if (!this._view_only) { this._keyboard.grab(); } |
1116 | if (!this._view_only) { this._mouse.grab(); } | |
b1dee947 | 1117 | |
6d6f0db0 SR |
1118 | if (this._true_color) { |
1119 | this._fb_Bpp = 4; | |
1120 | this._fb_depth = 3; | |
1121 | } else { | |
1122 | this._fb_Bpp = 1; | |
1123 | this._fb_depth = 1; | |
1124 | } | |
b1dee947 | 1125 | |
6d6f0db0 SR |
1126 | RFB.messages.pixelFormat(this._sock, this._fb_Bpp, this._fb_depth, this._true_color); |
1127 | RFB.messages.clientEncodings(this._sock, this._encodings, this._local_cursor, this._true_color); | |
1128 | RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fb_width, this._fb_height); | |
1129 | ||
1130 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1131 | this._timing.pixels = 0; | |
1132 | ||
1133 | this._updateConnectionState('connected'); | |
1134 | return true; | |
1135 | }, | |
1136 | ||
1137 | /* RFB protocol initialization states: | |
1138 | * ProtocolVersion | |
1139 | * Security | |
1140 | * Authentication | |
1141 | * SecurityResult | |
1142 | * ClientInitialization - not triggered by server message | |
1143 | * ServerInitialization | |
1144 | */ | |
1145 | _init_msg: function () { | |
1146 | switch (this._rfb_init_state) { | |
1147 | case 'ProtocolVersion': | |
1148 | return this._negotiate_protocol_version(); | |
1149 | ||
1150 | case 'Security': | |
1151 | return this._negotiate_security(); | |
1152 | ||
1153 | case 'Authentication': | |
1154 | return this._negotiate_authentication(); | |
1155 | ||
1156 | case 'SecurityResult': | |
1157 | return this._handle_security_result(); | |
1158 | ||
1159 | case 'ClientInitialisation': | |
1160 | this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation | |
1161 | this._rfb_init_state = 'ServerInitialisation'; | |
1162 | return true; | |
b1dee947 | 1163 | |
6d6f0db0 SR |
1164 | case 'ServerInitialisation': |
1165 | return this._negotiate_server_init(); | |
b1dee947 | 1166 | |
6d6f0db0 SR |
1167 | default: |
1168 | return this._fail("Internal error", "Unknown init state: " + | |
1169 | this._rfb_init_state); | |
1170 | } | |
1171 | }, | |
b1dee947 | 1172 | |
6d6f0db0 SR |
1173 | _handle_set_colour_map_msg: function () { |
1174 | Log.Debug("SetColorMapEntries"); | |
1175 | this._sock.rQskip8(); // Padding | |
81bd2d66 | 1176 | |
6d6f0db0 SR |
1177 | var first_colour = this._sock.rQshift16(); |
1178 | var num_colours = this._sock.rQshift16(); | |
1179 | if (this._sock.rQwait('SetColorMapEntries', num_colours * 6, 6)) { return false; } | |
b1dee947 | 1180 | |
6d6f0db0 SR |
1181 | for (var c = 0; c < num_colours; c++) { |
1182 | var red = parseInt(this._sock.rQshift16() / 256, 10); | |
1183 | var green = parseInt(this._sock.rQshift16() / 256, 10); | |
1184 | var blue = parseInt(this._sock.rQshift16() / 256, 10); | |
1185 | this._display.set_colourMap([blue, green, red], first_colour + c); | |
1186 | } | |
1187 | Log.Debug("colourMap: " + this._display.get_colourMap()); | |
1188 | Log.Info("Registered " + num_colours + " colourMap entries"); | |
b1dee947 | 1189 | |
6d6f0db0 SR |
1190 | return true; |
1191 | }, | |
b1dee947 | 1192 | |
6d6f0db0 SR |
1193 | _handle_server_cut_text: function () { |
1194 | Log.Debug("ServerCutText"); | |
b1dee947 | 1195 | |
6d6f0db0 SR |
1196 | if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; } |
1197 | this._sock.rQskipBytes(3); // Padding | |
1198 | var length = this._sock.rQshift32(); | |
1199 | if (this._sock.rQwait("ServerCutText", length, 8)) { return false; } | |
b1dee947 | 1200 | |
6d6f0db0 | 1201 | var text = this._sock.rQshiftStr(length); |
b4ff032e SR |
1202 | |
1203 | if (this._view_only) { return true; } | |
1204 | ||
6d6f0db0 | 1205 | this._onClipboard(this, text); |
b1dee947 | 1206 | |
6d6f0db0 SR |
1207 | return true; |
1208 | }, | |
b1dee947 | 1209 | |
6d6f0db0 SR |
1210 | _handle_server_fence_msg: function() { |
1211 | if (this._sock.rQwait("ServerFence header", 8, 1)) { return false; } | |
1212 | this._sock.rQskipBytes(3); // Padding | |
1213 | var flags = this._sock.rQshift32(); | |
1214 | var length = this._sock.rQshift8(); | |
b1dee947 | 1215 | |
6d6f0db0 | 1216 | if (this._sock.rQwait("ServerFence payload", length, 9)) { return false; } |
b1dee947 | 1217 | |
6d6f0db0 SR |
1218 | if (length > 64) { |
1219 | Log.Warn("Bad payload length (" + length + ") in fence response"); | |
1220 | length = 64; | |
1221 | } | |
4e0c36dd | 1222 | |
6d6f0db0 | 1223 | var payload = this._sock.rQshiftStr(length); |
b1dee947 | 1224 | |
6d6f0db0 | 1225 | this._supportsFence = true; |
b1dee947 | 1226 | |
6d6f0db0 SR |
1227 | /* |
1228 | * Fence flags | |
1229 | * | |
1230 | * (1<<0) - BlockBefore | |
1231 | * (1<<1) - BlockAfter | |
1232 | * (1<<2) - SyncNext | |
1233 | * (1<<31) - Request | |
1234 | */ | |
b1dee947 | 1235 | |
6d6f0db0 SR |
1236 | if (!(flags & (1<<31))) { |
1237 | return this._fail("Internal error", | |
1238 | "Unexpected fence response"); | |
1239 | } | |
b1dee947 | 1240 | |
6d6f0db0 SR |
1241 | // Filter out unsupported flags |
1242 | // FIXME: support syncNext | |
1243 | flags &= (1<<0) | (1<<1); | |
b1dee947 | 1244 | |
6d6f0db0 SR |
1245 | // BlockBefore and BlockAfter are automatically handled by |
1246 | // the fact that we process each incoming message | |
1247 | // synchronuosly. | |
1248 | RFB.messages.clientFence(this._sock, flags, payload); | |
f78a652e | 1249 | |
6d6f0db0 SR |
1250 | return true; |
1251 | }, | |
b1dee947 | 1252 | |
6d6f0db0 SR |
1253 | _handle_xvp_msg: function () { |
1254 | if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; } | |
1255 | this._sock.rQskip8(); // Padding | |
1256 | var xvp_ver = this._sock.rQshift8(); | |
1257 | var xvp_msg = this._sock.rQshift8(); | |
b1dee947 | 1258 | |
6d6f0db0 SR |
1259 | switch (xvp_msg) { |
1260 | case 0: // XVP_FAIL | |
1261 | Log.Error("Operation Failed"); | |
1262 | this._notification("XVP Operation Failed", 'error'); | |
1263 | break; | |
1264 | case 1: // XVP_INIT | |
1265 | this._rfb_xvp_ver = xvp_ver; | |
1266 | Log.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")"); | |
1267 | this._onXvpInit(this._rfb_xvp_ver); | |
1268 | break; | |
1269 | default: | |
1270 | this._fail("Unexpected server message", | |
1271 | "Illegal server XVP message " + xvp_msg); | |
1272 | break; | |
1273 | } | |
b1dee947 | 1274 | |
6d6f0db0 SR |
1275 | return true; |
1276 | }, | |
3df13262 | 1277 | |
6d6f0db0 SR |
1278 | _normal_msg: function () { |
1279 | var msg_type; | |
76a86ff5 | 1280 | |
6d6f0db0 SR |
1281 | if (this._FBU.rects > 0) { |
1282 | msg_type = 0; | |
1283 | } else { | |
1284 | msg_type = this._sock.rQshift8(); | |
1285 | } | |
76a86ff5 | 1286 | |
6d6f0db0 SR |
1287 | switch (msg_type) { |
1288 | case 0: // FramebufferUpdate | |
1289 | var ret = this._framebufferUpdate(); | |
1290 | if (ret && !this._enabledContinuousUpdates) { | |
1291 | RFB.messages.fbUpdateRequest(this._sock, true, 0, 0, | |
1292 | this._fb_width, this._fb_height); | |
1293 | } | |
1294 | return ret; | |
3df13262 | 1295 | |
6d6f0db0 SR |
1296 | case 1: // SetColorMapEntries |
1297 | return this._handle_set_colour_map_msg(); | |
1298 | ||
1299 | case 2: // Bell | |
1300 | Log.Debug("Bell"); | |
1301 | this._onBell(this); | |
1302 | return true; | |
1303 | ||
1304 | case 3: // ServerCutText | |
1305 | return this._handle_server_cut_text(); | |
1306 | ||
1307 | case 150: // EndOfContinuousUpdates | |
1308 | var first = !(this._supportsContinuousUpdates); | |
1309 | this._supportsContinuousUpdates = true; | |
1310 | this._enabledContinuousUpdates = false; | |
1311 | if (first) { | |
1312 | this._enabledContinuousUpdates = true; | |
1313 | this._updateContinuousUpdates(); | |
1314 | Log.Info("Enabling continuous updates."); | |
1315 | } else { | |
1316 | // FIXME: We need to send a framebufferupdaterequest here | |
1317 | // if we add support for turning off continuous updates | |
1318 | } | |
1319 | return true; | |
3df13262 | 1320 | |
6d6f0db0 SR |
1321 | case 248: // ServerFence |
1322 | return this._handle_server_fence_msg(); | |
3df13262 | 1323 | |
6d6f0db0 SR |
1324 | case 250: // XVP |
1325 | return this._handle_xvp_msg(); | |
3df13262 | 1326 | |
6d6f0db0 SR |
1327 | default: |
1328 | this._fail("Unexpected server message", "Type:" + msg_type); | |
1329 | Log.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30)); | |
1330 | return true; | |
1331 | } | |
1332 | }, | |
3df13262 | 1333 | |
6d6f0db0 SR |
1334 | _onFlush: function() { |
1335 | this._flushing = false; | |
1336 | // Resume processing | |
1337 | if (this._sock.rQlen() > 0) { | |
1338 | this._handle_message(); | |
1339 | } | |
1340 | }, | |
3df13262 | 1341 | |
6d6f0db0 SR |
1342 | _framebufferUpdate: function () { |
1343 | var ret = true; | |
1344 | var now; | |
3df13262 | 1345 | |
6d6f0db0 SR |
1346 | if (this._FBU.rects === 0) { |
1347 | if (this._sock.rQwait("FBU header", 3, 1)) { return false; } | |
b1dee947 | 1348 | this._sock.rQskip8(); // Padding |
6d6f0db0 SR |
1349 | this._FBU.rects = this._sock.rQshift16(); |
1350 | this._FBU.bytes = 0; | |
1351 | this._timing.cur_fbu = 0; | |
1352 | if (this._timing.fbu_rt_start > 0) { | |
1353 | now = (new Date()).getTime(); | |
1354 | Log.Info("First FBU latency: " + (now - this._timing.fbu_rt_start)); | |
b1dee947 SR |
1355 | } |
1356 | ||
6d6f0db0 SR |
1357 | // Make sure the previous frame is fully rendered first |
1358 | // to avoid building up an excessive queue | |
1359 | if (this._display.pending()) { | |
1360 | this._flushing = true; | |
1361 | this._display.flush(); | |
1362 | return false; | |
1363 | } | |
1364 | } | |
b1dee947 | 1365 | |
6d6f0db0 SR |
1366 | while (this._FBU.rects > 0) { |
1367 | if (this._rfb_connection_state !== 'connected') { return false; } | |
b1dee947 | 1368 | |
6d6f0db0 SR |
1369 | if (this._sock.rQwait("FBU", this._FBU.bytes)) { return false; } |
1370 | if (this._FBU.bytes === 0) { | |
1371 | if (this._sock.rQwait("rect header", 12)) { return false; } | |
1372 | /* New FramebufferUpdate */ | |
b1dee947 | 1373 | |
6d6f0db0 SR |
1374 | var hdr = this._sock.rQshiftBytes(12); |
1375 | this._FBU.x = (hdr[0] << 8) + hdr[1]; | |
1376 | this._FBU.y = (hdr[2] << 8) + hdr[3]; | |
1377 | this._FBU.width = (hdr[4] << 8) + hdr[5]; | |
1378 | this._FBU.height = (hdr[6] << 8) + hdr[7]; | |
1379 | this._FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
1380 | (hdr[10] << 8) + hdr[11], 10); | |
b1dee947 | 1381 | |
6d6f0db0 SR |
1382 | this._onFBUReceive(this, |
1383 | {'x': this._FBU.x, 'y': this._FBU.y, | |
1384 | 'width': this._FBU.width, 'height': this._FBU.height, | |
1385 | 'encoding': this._FBU.encoding, | |
1386 | 'encodingName': this._encNames[this._FBU.encoding]}); | |
b1dee947 | 1387 | |
6d6f0db0 SR |
1388 | if (!this._encNames[this._FBU.encoding]) { |
1389 | this._fail("Unexpected server message", | |
1390 | "Unsupported encoding " + | |
1391 | this._FBU.encoding); | |
1392 | return false; | |
1393 | } | |
1394 | } | |
b1dee947 | 1395 | |
6d6f0db0 | 1396 | this._timing.last_fbu = (new Date()).getTime(); |
76a86ff5 | 1397 | |
6d6f0db0 | 1398 | ret = this._encHandlers[this._FBU.encoding](); |
3df13262 | 1399 | |
6d6f0db0 SR |
1400 | now = (new Date()).getTime(); |
1401 | this._timing.cur_fbu += (now - this._timing.last_fbu); | |
b1dee947 | 1402 | |
6d6f0db0 SR |
1403 | if (ret) { |
1404 | this._encStats[this._FBU.encoding][0]++; | |
1405 | this._encStats[this._FBU.encoding][1]++; | |
1406 | this._timing.pixels += this._FBU.width * this._FBU.height; | |
b1dee947 | 1407 | } |
b1dee947 | 1408 | |
6d6f0db0 SR |
1409 | if (this._timing.pixels >= (this._fb_width * this._fb_height)) { |
1410 | if ((this._FBU.width === this._fb_width && this._FBU.height === this._fb_height) || | |
1411 | this._timing.fbu_rt_start > 0) { | |
1412 | this._timing.full_fbu_total += this._timing.cur_fbu; | |
1413 | this._timing.full_fbu_cnt++; | |
1414 | Log.Info("Timing of full FBU, curr: " + | |
1415 | this._timing.cur_fbu + ", total: " + | |
1416 | this._timing.full_fbu_total + ", cnt: " + | |
1417 | this._timing.full_fbu_cnt + ", avg: " + | |
1418 | (this._timing.full_fbu_total / this._timing.full_fbu_cnt)); | |
b1dee947 | 1419 | } |
d9ca5e5b | 1420 | |
6d6f0db0 SR |
1421 | if (this._timing.fbu_rt_start > 0) { |
1422 | var fbu_rt_diff = now - this._timing.fbu_rt_start; | |
1423 | this._timing.fbu_rt_total += fbu_rt_diff; | |
1424 | this._timing.fbu_rt_cnt++; | |
1425 | Log.Info("full FBU round-trip, cur: " + | |
1426 | fbu_rt_diff + ", total: " + | |
1427 | this._timing.fbu_rt_total + ", cnt: " + | |
1428 | this._timing.fbu_rt_cnt + ", avg: " + | |
1429 | (this._timing.fbu_rt_total / this._timing.fbu_rt_cnt)); | |
1430 | this._timing.fbu_rt_start = 0; | |
d9ca5e5b | 1431 | } |
b1dee947 SR |
1432 | } |
1433 | ||
6d6f0db0 SR |
1434 | if (!ret) { return ret; } // need more data |
1435 | } | |
b1dee947 | 1436 | |
6d6f0db0 | 1437 | this._display.flip(); |
b1dee947 | 1438 | |
6d6f0db0 SR |
1439 | this._onFBUComplete(this, |
1440 | {'x': this._FBU.x, 'y': this._FBU.y, | |
1441 | 'width': this._FBU.width, 'height': this._FBU.height, | |
1442 | 'encoding': this._FBU.encoding, | |
1443 | 'encodingName': this._encNames[this._FBU.encoding]}); | |
b1dee947 | 1444 | |
6d6f0db0 SR |
1445 | return true; // We finished this FBU |
1446 | }, | |
b1dee947 | 1447 | |
6d6f0db0 SR |
1448 | _updateContinuousUpdates: function() { |
1449 | if (!this._enabledContinuousUpdates) { return; } | |
b1dee947 | 1450 | |
6d6f0db0 SR |
1451 | RFB.messages.enableContinuousUpdates(this._sock, true, 0, 0, |
1452 | this._fb_width, this._fb_height); | |
1453 | } | |
1454 | }; | |
8db09746 | 1455 | |
6d6f0db0 SR |
1456 | make_properties(RFB, [ |
1457 | ['target', 'wo', 'dom'], // VNC display rendering Canvas object | |
1458 | ['focusContainer', 'wo', 'dom'], // DOM element that captures keyboard input | |
1459 | ['encrypt', 'rw', 'bool'], // Use TLS/SSL/wss encryption | |
1460 | ['true_color', 'rw', 'bool'], // Request true color pixel data | |
1461 | ['local_cursor', 'rw', 'bool'], // Request locally rendered cursor | |
1462 | ['shared', 'rw', 'bool'], // Request shared mode | |
1463 | ['view_only', 'rw', 'bool'], // Disable client mouse/keyboard | |
1464 | ['xvp_password_sep', 'rw', 'str'], // Separator for XVP password fields | |
1465 | ['disconnectTimeout', 'rw', 'int'], // Time (s) to wait for disconnection | |
1466 | ['wsProtocols', 'rw', 'arr'], // Protocols to use in the WebSocket connection | |
1467 | ['repeaterID', 'rw', 'str'], // [UltraVNC] RepeaterID to connect to | |
1468 | ['viewportDrag', 'rw', 'bool'], // Move the viewport on mouse drags | |
1469 | ||
1470 | // Callback functions | |
1471 | ['onUpdateState', 'rw', 'func'], // onUpdateState(rfb, state, oldstate): connection state change | |
1472 | ['onNotification', 'rw', 'func'], // onNotification(rfb, msg, level, options): notification for the UI | |
1473 | ['onDisconnected', 'rw', 'func'], // onDisconnected(rfb, reason): disconnection finished | |
1474 | ['onPasswordRequired', 'rw', 'func'], // onPasswordRequired(rfb, msg): VNC password is required | |
1475 | ['onClipboard', 'rw', 'func'], // onClipboard(rfb, text): RFB clipboard contents received | |
1476 | ['onBell', 'rw', 'func'], // onBell(rfb): RFB Bell message received | |
1477 | ['onFBUReceive', 'rw', 'func'], // onFBUReceive(rfb, fbu): RFB FBU received but not yet processed | |
1478 | ['onFBUComplete', 'rw', 'func'], // onFBUComplete(rfb, fbu): RFB FBU received and processed | |
1479 | ['onFBResize', 'rw', 'func'], // onFBResize(rfb, width, height): frame buffer resized | |
1480 | ['onDesktopName', 'rw', 'func'], // onDesktopName(rfb, name): desktop name received | |
1481 | ['onXvpInit', 'rw', 'func'] // onXvpInit(version): XVP extensions active for this connection | |
1482 | ]); | |
1483 | ||
1484 | RFB.prototype.set_local_cursor = function (cursor) { | |
1485 | if (!cursor || (cursor in {'0': 1, 'no': 1, 'false': 1})) { | |
1486 | this._local_cursor = false; | |
1487 | this._display.disableLocalCursor(); //Only show server-side cursor | |
1488 | } else { | |
1489 | if (this._display.get_cursor_uri()) { | |
1490 | this._local_cursor = true; | |
1491 | } else { | |
1492 | Log.Warn("Browser does not support local cursor"); | |
1493 | this._display.disableLocalCursor(); | |
1494 | } | |
1495 | } | |
d86cc2d9 | 1496 | |
6d6f0db0 SR |
1497 | // Need to send an updated list of encodings if we are connected |
1498 | if (this._rfb_connection_state === "connected") { | |
1499 | RFB.messages.clientEncodings(this._sock, this._encodings, cursor, | |
1500 | this._true_color); | |
1501 | } | |
1502 | }; | |
2ba767a7 | 1503 | |
6d6f0db0 SR |
1504 | RFB.prototype.set_view_only = function (view_only) { |
1505 | this._view_only = view_only; | |
8db09746 | 1506 | |
6d6f0db0 SR |
1507 | if (this._rfb_connection_state === "connecting" || |
1508 | this._rfb_connection_state === "connected") { | |
1509 | if (view_only) { | |
1510 | this._keyboard.ungrab(); | |
1511 | this._mouse.ungrab(); | |
1512 | } else { | |
1513 | this._keyboard.grab(); | |
1514 | this._mouse.grab(); | |
1515 | } | |
1516 | } | |
1517 | }; | |
76a86ff5 | 1518 | |
6d6f0db0 SR |
1519 | RFB.prototype.get_display = function () { return this._display; }; |
1520 | RFB.prototype.get_keyboard = function () { return this._keyboard; }; | |
1521 | RFB.prototype.get_mouse = function () { return this._mouse; }; | |
76a86ff5 | 1522 | |
6d6f0db0 SR |
1523 | // Class Methods |
1524 | RFB.messages = { | |
1525 | keyEvent: function (sock, keysym, down) { | |
1526 | var buff = sock._sQ; | |
1527 | var offset = sock._sQlen; | |
8db09746 | 1528 | |
6d6f0db0 SR |
1529 | buff[offset] = 4; // msg-type |
1530 | buff[offset + 1] = down; | |
b1dee947 | 1531 | |
6d6f0db0 SR |
1532 | buff[offset + 2] = 0; |
1533 | buff[offset + 3] = 0; | |
fb49f91b | 1534 | |
6d6f0db0 SR |
1535 | buff[offset + 4] = (keysym >> 24); |
1536 | buff[offset + 5] = (keysym >> 16); | |
1537 | buff[offset + 6] = (keysym >> 8); | |
1538 | buff[offset + 7] = keysym; | |
b1dee947 | 1539 | |
6d6f0db0 SR |
1540 | sock._sQlen += 8; |
1541 | sock.flush(); | |
1542 | }, | |
ef1e8bab | 1543 | |
6d6f0db0 SR |
1544 | QEMUExtendedKeyEvent: function (sock, keysym, down, keycode) { |
1545 | function getRFBkeycode(xt_scancode) { | |
1546 | var upperByte = (keycode >> 8); | |
1547 | var lowerByte = (keycode & 0x00ff); | |
1548 | if (upperByte === 0xe0 && lowerByte < 0x7f) { | |
1549 | lowerByte = lowerByte | 0x80; | |
1550 | return lowerByte; | |
ef1e8bab | 1551 | } |
6d6f0db0 | 1552 | return xt_scancode; |
ef1e8bab | 1553 | } |
b1dee947 | 1554 | |
6d6f0db0 SR |
1555 | var buff = sock._sQ; |
1556 | var offset = sock._sQlen; | |
8f06673a | 1557 | |
6d6f0db0 SR |
1558 | buff[offset] = 255; // msg-type |
1559 | buff[offset + 1] = 0; // sub msg-type | |
8f06673a | 1560 | |
6d6f0db0 SR |
1561 | buff[offset + 2] = (down >> 8); |
1562 | buff[offset + 3] = down; | |
8f06673a | 1563 | |
6d6f0db0 SR |
1564 | buff[offset + 4] = (keysym >> 24); |
1565 | buff[offset + 5] = (keysym >> 16); | |
1566 | buff[offset + 6] = (keysym >> 8); | |
1567 | buff[offset + 7] = keysym; | |
8f06673a | 1568 | |
6d6f0db0 | 1569 | var RFBkeycode = getRFBkeycode(keycode); |
8f06673a | 1570 | |
6d6f0db0 SR |
1571 | buff[offset + 8] = (RFBkeycode >> 24); |
1572 | buff[offset + 9] = (RFBkeycode >> 16); | |
1573 | buff[offset + 10] = (RFBkeycode >> 8); | |
1574 | buff[offset + 11] = RFBkeycode; | |
8f06673a | 1575 | |
6d6f0db0 SR |
1576 | sock._sQlen += 12; |
1577 | sock.flush(); | |
1578 | }, | |
8f06673a | 1579 | |
6d6f0db0 SR |
1580 | pointerEvent: function (sock, x, y, mask) { |
1581 | var buff = sock._sQ; | |
1582 | var offset = sock._sQlen; | |
8f06673a | 1583 | |
6d6f0db0 | 1584 | buff[offset] = 5; // msg-type |
9ff86fb7 | 1585 | |
6d6f0db0 | 1586 | buff[offset + 1] = mask; |
9ff86fb7 | 1587 | |
6d6f0db0 SR |
1588 | buff[offset + 2] = x >> 8; |
1589 | buff[offset + 3] = x; | |
9ff86fb7 | 1590 | |
6d6f0db0 SR |
1591 | buff[offset + 4] = y >> 8; |
1592 | buff[offset + 5] = y; | |
9ff86fb7 | 1593 | |
6d6f0db0 SR |
1594 | sock._sQlen += 6; |
1595 | sock.flush(); | |
1596 | }, | |
9ff86fb7 | 1597 | |
6d6f0db0 SR |
1598 | // TODO(directxman12): make this unicode compatible? |
1599 | clientCutText: function (sock, text) { | |
1600 | var buff = sock._sQ; | |
1601 | var offset = sock._sQlen; | |
b1dee947 | 1602 | |
6d6f0db0 | 1603 | buff[offset] = 6; // msg-type |
9ff86fb7 | 1604 | |
6d6f0db0 SR |
1605 | buff[offset + 1] = 0; // padding |
1606 | buff[offset + 2] = 0; // padding | |
1607 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1608 | |
6d6f0db0 | 1609 | var n = text.length; |
9ff86fb7 | 1610 | |
6d6f0db0 SR |
1611 | buff[offset + 4] = n >> 24; |
1612 | buff[offset + 5] = n >> 16; | |
1613 | buff[offset + 6] = n >> 8; | |
1614 | buff[offset + 7] = n; | |
9ff86fb7 | 1615 | |
6d6f0db0 SR |
1616 | for (var i = 0; i < n; i++) { |
1617 | buff[offset + 8 + i] = text.charCodeAt(i); | |
1618 | } | |
9ff86fb7 | 1619 | |
6d6f0db0 SR |
1620 | sock._sQlen += 8 + n; |
1621 | sock.flush(); | |
1622 | }, | |
1623 | ||
1624 | setDesktopSize: function (sock, width, height, id, flags) { | |
1625 | var buff = sock._sQ; | |
1626 | var offset = sock._sQlen; | |
1627 | ||
1628 | buff[offset] = 251; // msg-type | |
1629 | buff[offset + 1] = 0; // padding | |
1630 | buff[offset + 2] = width >> 8; // width | |
1631 | buff[offset + 3] = width; | |
1632 | buff[offset + 4] = height >> 8; // height | |
1633 | buff[offset + 5] = height; | |
1634 | ||
1635 | buff[offset + 6] = 1; // number-of-screens | |
1636 | buff[offset + 7] = 0; // padding | |
1637 | ||
1638 | // screen array | |
1639 | buff[offset + 8] = id >> 24; // id | |
1640 | buff[offset + 9] = id >> 16; | |
1641 | buff[offset + 10] = id >> 8; | |
1642 | buff[offset + 11] = id; | |
1643 | buff[offset + 12] = 0; // x-position | |
1644 | buff[offset + 13] = 0; | |
1645 | buff[offset + 14] = 0; // y-position | |
1646 | buff[offset + 15] = 0; | |
1647 | buff[offset + 16] = width >> 8; // width | |
1648 | buff[offset + 17] = width; | |
1649 | buff[offset + 18] = height >> 8; // height | |
1650 | buff[offset + 19] = height; | |
1651 | buff[offset + 20] = flags >> 24; // flags | |
1652 | buff[offset + 21] = flags >> 16; | |
1653 | buff[offset + 22] = flags >> 8; | |
1654 | buff[offset + 23] = flags; | |
1655 | ||
1656 | sock._sQlen += 24; | |
1657 | sock.flush(); | |
1658 | }, | |
1659 | ||
1660 | clientFence: function (sock, flags, payload) { | |
1661 | var buff = sock._sQ; | |
1662 | var offset = sock._sQlen; | |
1663 | ||
1664 | buff[offset] = 248; // msg-type | |
1665 | ||
1666 | buff[offset + 1] = 0; // padding | |
1667 | buff[offset + 2] = 0; // padding | |
1668 | buff[offset + 3] = 0; // padding | |
1669 | ||
1670 | buff[offset + 4] = flags >> 24; // flags | |
1671 | buff[offset + 5] = flags >> 16; | |
1672 | buff[offset + 6] = flags >> 8; | |
1673 | buff[offset + 7] = flags; | |
1674 | ||
1675 | var n = payload.length; | |
1676 | ||
1677 | buff[offset + 8] = n; // length | |
1678 | ||
1679 | for (var i = 0; i < n; i++) { | |
1680 | buff[offset + 9 + i] = payload.charCodeAt(i); | |
1681 | } | |
a7a89626 | 1682 | |
6d6f0db0 SR |
1683 | sock._sQlen += 9 + n; |
1684 | sock.flush(); | |
1685 | }, | |
3df13262 | 1686 | |
6d6f0db0 SR |
1687 | enableContinuousUpdates: function (sock, enable, x, y, width, height) { |
1688 | var buff = sock._sQ; | |
1689 | var offset = sock._sQlen; | |
3df13262 | 1690 | |
6d6f0db0 SR |
1691 | buff[offset] = 150; // msg-type |
1692 | buff[offset + 1] = enable; // enable-flag | |
76a86ff5 | 1693 | |
6d6f0db0 SR |
1694 | buff[offset + 2] = x >> 8; // x |
1695 | buff[offset + 3] = x; | |
1696 | buff[offset + 4] = y >> 8; // y | |
1697 | buff[offset + 5] = y; | |
1698 | buff[offset + 6] = width >> 8; // width | |
1699 | buff[offset + 7] = width; | |
1700 | buff[offset + 8] = height >> 8; // height | |
1701 | buff[offset + 9] = height; | |
76a86ff5 | 1702 | |
6d6f0db0 SR |
1703 | sock._sQlen += 10; |
1704 | sock.flush(); | |
1705 | }, | |
76a86ff5 | 1706 | |
6d6f0db0 SR |
1707 | pixelFormat: function (sock, bpp, depth, true_color) { |
1708 | var buff = sock._sQ; | |
1709 | var offset = sock._sQlen; | |
ae116051 | 1710 | |
6d6f0db0 | 1711 | buff[offset] = 0; // msg-type |
9ff86fb7 | 1712 | |
6d6f0db0 SR |
1713 | buff[offset + 1] = 0; // padding |
1714 | buff[offset + 2] = 0; // padding | |
1715 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1716 | |
6d6f0db0 SR |
1717 | buff[offset + 4] = bpp * 8; // bits-per-pixel |
1718 | buff[offset + 5] = depth * 8; // depth | |
1719 | buff[offset + 6] = 0; // little-endian | |
1720 | buff[offset + 7] = true_color ? 1 : 0; // true-color | |
9ff86fb7 | 1721 | |
6d6f0db0 SR |
1722 | buff[offset + 8] = 0; // red-max |
1723 | buff[offset + 9] = 255; // red-max | |
9ff86fb7 | 1724 | |
6d6f0db0 SR |
1725 | buff[offset + 10] = 0; // green-max |
1726 | buff[offset + 11] = 255; // green-max | |
9ff86fb7 | 1727 | |
6d6f0db0 SR |
1728 | buff[offset + 12] = 0; // blue-max |
1729 | buff[offset + 13] = 255; // blue-max | |
9ff86fb7 | 1730 | |
6d6f0db0 SR |
1731 | buff[offset + 14] = 16; // red-shift |
1732 | buff[offset + 15] = 8; // green-shift | |
1733 | buff[offset + 16] = 0; // blue-shift | |
9ff86fb7 | 1734 | |
6d6f0db0 SR |
1735 | buff[offset + 17] = 0; // padding |
1736 | buff[offset + 18] = 0; // padding | |
1737 | buff[offset + 19] = 0; // padding | |
9ff86fb7 | 1738 | |
6d6f0db0 SR |
1739 | sock._sQlen += 20; |
1740 | sock.flush(); | |
1741 | }, | |
9ff86fb7 | 1742 | |
6d6f0db0 SR |
1743 | clientEncodings: function (sock, encodings, local_cursor, true_color) { |
1744 | var buff = sock._sQ; | |
1745 | var offset = sock._sQlen; | |
b1dee947 | 1746 | |
6d6f0db0 SR |
1747 | buff[offset] = 2; // msg-type |
1748 | buff[offset + 1] = 0; // padding | |
b1dee947 | 1749 | |
6d6f0db0 | 1750 | // offset + 2 and offset + 3 are encoding count |
9ff86fb7 | 1751 | |
6d6f0db0 SR |
1752 | var i, j = offset + 4, cnt = 0; |
1753 | for (i = 0; i < encodings.length; i++) { | |
1754 | if (encodings[i][0] === "Cursor" && !local_cursor) { | |
1755 | Log.Debug("Skipping Cursor pseudo-encoding"); | |
1756 | } else if (encodings[i][0] === "TIGHT" && !true_color) { | |
1757 | // TODO: remove this when we have tight+non-true-color | |
1758 | Log.Warn("Skipping tight as it is only supported with true color"); | |
1759 | } else { | |
1760 | var enc = encodings[i][1]; | |
1761 | buff[j] = enc >> 24; | |
1762 | buff[j + 1] = enc >> 16; | |
1763 | buff[j + 2] = enc >> 8; | |
1764 | buff[j + 3] = enc; | |
9ff86fb7 | 1765 | |
6d6f0db0 SR |
1766 | j += 4; |
1767 | cnt++; | |
b1dee947 | 1768 | } |
6d6f0db0 | 1769 | } |
a7a89626 | 1770 | |
6d6f0db0 SR |
1771 | buff[offset + 2] = cnt >> 8; |
1772 | buff[offset + 3] = cnt; | |
a7a89626 | 1773 | |
6d6f0db0 SR |
1774 | sock._sQlen += j - offset; |
1775 | sock.flush(); | |
1776 | }, | |
a679a97d | 1777 | |
6d6f0db0 SR |
1778 | fbUpdateRequest: function (sock, incremental, x, y, w, h) { |
1779 | var buff = sock._sQ; | |
1780 | var offset = sock._sQlen; | |
9ff86fb7 | 1781 | |
6d6f0db0 SR |
1782 | if (typeof(x) === "undefined") { x = 0; } |
1783 | if (typeof(y) === "undefined") { y = 0; } | |
b1dee947 | 1784 | |
6d6f0db0 SR |
1785 | buff[offset] = 3; // msg-type |
1786 | buff[offset + 1] = incremental ? 1 : 0; | |
9ff86fb7 | 1787 | |
6d6f0db0 SR |
1788 | buff[offset + 2] = (x >> 8) & 0xFF; |
1789 | buff[offset + 3] = x & 0xFF; | |
9ff86fb7 | 1790 | |
6d6f0db0 SR |
1791 | buff[offset + 4] = (y >> 8) & 0xFF; |
1792 | buff[offset + 5] = y & 0xFF; | |
9ff86fb7 | 1793 | |
6d6f0db0 SR |
1794 | buff[offset + 6] = (w >> 8) & 0xFF; |
1795 | buff[offset + 7] = w & 0xFF; | |
9ff86fb7 | 1796 | |
6d6f0db0 SR |
1797 | buff[offset + 8] = (h >> 8) & 0xFF; |
1798 | buff[offset + 9] = h & 0xFF; | |
b1dee947 | 1799 | |
6d6f0db0 SR |
1800 | sock._sQlen += 10; |
1801 | sock.flush(); | |
1802 | } | |
1803 | }; | |
b1dee947 | 1804 | |
6d6f0db0 SR |
1805 | RFB.genDES = function (password, challenge) { |
1806 | var passwd = []; | |
1807 | for (var i = 0; i < password.length; i++) { | |
1808 | passwd.push(password.charCodeAt(i)); | |
1809 | } | |
1810 | return (new DES(passwd)).encrypt(challenge); | |
1811 | }; | |
b1dee947 | 1812 | |
6d6f0db0 SR |
1813 | RFB.encodingHandlers = { |
1814 | RAW: function () { | |
1815 | if (this._FBU.lines === 0) { | |
1816 | this._FBU.lines = this._FBU.height; | |
1817 | } | |
a7a89626 | 1818 | |
6d6f0db0 SR |
1819 | this._FBU.bytes = this._FBU.width * this._fb_Bpp; // at least a line |
1820 | if (this._sock.rQwait("RAW", this._FBU.bytes)) { return false; } | |
1821 | var cur_y = this._FBU.y + (this._FBU.height - this._FBU.lines); | |
1822 | var curr_height = Math.min(this._FBU.lines, | |
1823 | Math.floor(this._sock.rQlen() / (this._FBU.width * this._fb_Bpp))); | |
1824 | this._display.blitImage(this._FBU.x, cur_y, this._FBU.width, | |
1825 | curr_height, this._sock.get_rQ(), | |
1826 | this._sock.get_rQi()); | |
1827 | this._sock.rQskipBytes(this._FBU.width * curr_height * this._fb_Bpp); | |
1828 | this._FBU.lines -= curr_height; | |
1829 | ||
1830 | if (this._FBU.lines > 0) { | |
1831 | this._FBU.bytes = this._FBU.width * this._fb_Bpp; // At least another line | |
1832 | } else { | |
1833 | this._FBU.rects--; | |
1834 | this._FBU.bytes = 0; | |
1835 | } | |
b1dee947 | 1836 | |
6d6f0db0 SR |
1837 | return true; |
1838 | }, | |
1839 | ||
1840 | COPYRECT: function () { | |
1841 | this._FBU.bytes = 4; | |
1842 | if (this._sock.rQwait("COPYRECT", 4)) { return false; } | |
1843 | this._display.copyImage(this._sock.rQshift16(), this._sock.rQshift16(), | |
1844 | this._FBU.x, this._FBU.y, this._FBU.width, | |
1845 | this._FBU.height); | |
1846 | ||
1847 | this._FBU.rects--; | |
1848 | this._FBU.bytes = 0; | |
1849 | return true; | |
1850 | }, | |
1851 | ||
1852 | RRE: function () { | |
1853 | var color; | |
1854 | if (this._FBU.subrects === 0) { | |
1855 | this._FBU.bytes = 4 + this._fb_Bpp; | |
1856 | if (this._sock.rQwait("RRE", 4 + this._fb_Bpp)) { return false; } | |
1857 | this._FBU.subrects = this._sock.rQshift32(); | |
1858 | color = this._sock.rQshiftBytes(this._fb_Bpp); // Background | |
1859 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, color); | |
1860 | } | |
b1dee947 | 1861 | |
6d6f0db0 SR |
1862 | while (this._FBU.subrects > 0 && this._sock.rQlen() >= (this._fb_Bpp + 8)) { |
1863 | color = this._sock.rQshiftBytes(this._fb_Bpp); | |
1864 | var x = this._sock.rQshift16(); | |
1865 | var y = this._sock.rQshift16(); | |
1866 | var width = this._sock.rQshift16(); | |
1867 | var height = this._sock.rQshift16(); | |
1868 | this._display.fillRect(this._FBU.x + x, this._FBU.y + y, width, height, color); | |
1869 | this._FBU.subrects--; | |
1870 | } | |
f00193e0 | 1871 | |
6d6f0db0 SR |
1872 | if (this._FBU.subrects > 0) { |
1873 | var chunk = Math.min(this._rre_chunk_sz, this._FBU.subrects); | |
1874 | this._FBU.bytes = (this._fb_Bpp + 8) * chunk; | |
1875 | } else { | |
b1dee947 SR |
1876 | this._FBU.rects--; |
1877 | this._FBU.bytes = 0; | |
6d6f0db0 | 1878 | } |
b1dee947 | 1879 | |
6d6f0db0 SR |
1880 | return true; |
1881 | }, | |
b1dee947 | 1882 | |
6d6f0db0 SR |
1883 | HEXTILE: function () { |
1884 | var rQ = this._sock.get_rQ(); | |
1885 | var rQi = this._sock.get_rQi(); | |
b1dee947 | 1886 | |
6d6f0db0 SR |
1887 | if (this._FBU.tiles === 0) { |
1888 | this._FBU.tiles_x = Math.ceil(this._FBU.width / 16); | |
1889 | this._FBU.tiles_y = Math.ceil(this._FBU.height / 16); | |
1890 | this._FBU.total_tiles = this._FBU.tiles_x * this._FBU.tiles_y; | |
1891 | this._FBU.tiles = this._FBU.total_tiles; | |
1892 | } | |
b1dee947 | 1893 | |
6d6f0db0 SR |
1894 | while (this._FBU.tiles > 0) { |
1895 | this._FBU.bytes = 1; | |
1896 | if (this._sock.rQwait("HEXTILE subencoding", this._FBU.bytes)) { return false; } | |
1897 | var subencoding = rQ[rQi]; // Peek | |
1898 | if (subencoding > 30) { // Raw | |
1899 | this._fail("Unexpected server message", | |
1900 | "Illegal hextile subencoding: " + subencoding); | |
1901 | return false; | |
b1dee947 SR |
1902 | } |
1903 | ||
6d6f0db0 SR |
1904 | var subrects = 0; |
1905 | var curr_tile = this._FBU.total_tiles - this._FBU.tiles; | |
1906 | var tile_x = curr_tile % this._FBU.tiles_x; | |
1907 | var tile_y = Math.floor(curr_tile / this._FBU.tiles_x); | |
1908 | var x = this._FBU.x + tile_x * 16; | |
1909 | var y = this._FBU.y + tile_y * 16; | |
1910 | var w = Math.min(16, (this._FBU.x + this._FBU.width) - x); | |
1911 | var h = Math.min(16, (this._FBU.y + this._FBU.height) - y); | |
b1dee947 | 1912 | |
6d6f0db0 SR |
1913 | // Figure out how much we are expecting |
1914 | if (subencoding & 0x01) { // Raw | |
1915 | this._FBU.bytes += w * h * this._fb_Bpp; | |
1916 | } else { | |
1917 | if (subencoding & 0x02) { // Background | |
1918 | this._FBU.bytes += this._fb_Bpp; | |
1919 | } | |
1920 | if (subencoding & 0x04) { // Foreground | |
1921 | this._FBU.bytes += this._fb_Bpp; | |
1922 | } | |
1923 | if (subencoding & 0x08) { // AnySubrects | |
1924 | this._FBU.bytes++; // Since we aren't shifting it off | |
1925 | if (this._sock.rQwait("hextile subrects header", this._FBU.bytes)) { return false; } | |
1926 | subrects = rQ[rQi + this._FBU.bytes - 1]; // Peek | |
1927 | if (subencoding & 0x10) { // SubrectsColoured | |
1928 | this._FBU.bytes += subrects * (this._fb_Bpp + 2); | |
1929 | } else { | |
1930 | this._FBU.bytes += subrects * 2; | |
b1dee947 SR |
1931 | } |
1932 | } | |
6d6f0db0 | 1933 | } |
b1dee947 | 1934 | |
6d6f0db0 | 1935 | if (this._sock.rQwait("hextile", this._FBU.bytes)) { return false; } |
b1dee947 | 1936 | |
6d6f0db0 SR |
1937 | // We know the encoding and have a whole tile |
1938 | this._FBU.subencoding = rQ[rQi]; | |
1939 | rQi++; | |
1940 | if (this._FBU.subencoding === 0) { | |
1941 | if (this._FBU.lastsubencoding & 0x01) { | |
1942 | // Weird: ignore blanks are RAW | |
1943 | Log.Debug(" Ignoring blank after RAW"); | |
b1dee947 | 1944 | } else { |
6d6f0db0 SR |
1945 | this._display.fillRect(x, y, w, h, this._FBU.background); |
1946 | } | |
1947 | } else if (this._FBU.subencoding & 0x01) { // Raw | |
1948 | this._display.blitImage(x, y, w, h, rQ, rQi); | |
1949 | rQi += this._FBU.bytes - 1; | |
1950 | } else { | |
1951 | if (this._FBU.subencoding & 0x02) { // Background | |
1952 | if (this._fb_Bpp == 1) { | |
1953 | this._FBU.background = rQ[rQi]; | |
1954 | } else { | |
1955 | // fb_Bpp is 4 | |
1956 | this._FBU.background = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; | |
a7a89626 | 1957 | } |
6d6f0db0 SR |
1958 | rQi += this._fb_Bpp; |
1959 | } | |
1960 | if (this._FBU.subencoding & 0x04) { // Foreground | |
1961 | if (this._fb_Bpp == 1) { | |
1962 | this._FBU.foreground = rQ[rQi]; | |
1963 | } else { | |
1964 | // this._fb_Bpp is 4 | |
1965 | this._FBU.foreground = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; | |
b1dee947 | 1966 | } |
6d6f0db0 SR |
1967 | rQi += this._fb_Bpp; |
1968 | } | |
b1dee947 | 1969 | |
6d6f0db0 SR |
1970 | this._display.startTile(x, y, w, h, this._FBU.background); |
1971 | if (this._FBU.subencoding & 0x08) { // AnySubrects | |
1972 | subrects = rQ[rQi]; | |
1973 | rQi++; | |
b1dee947 | 1974 | |
6d6f0db0 SR |
1975 | for (var s = 0; s < subrects; s++) { |
1976 | var color; | |
1977 | if (this._FBU.subencoding & 0x10) { // SubrectsColoured | |
1978 | if (this._fb_Bpp === 1) { | |
1979 | color = rQ[rQi]; | |
b1dee947 | 1980 | } else { |
6d6f0db0 SR |
1981 | // _fb_Bpp is 4 |
1982 | color = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; | |
b1dee947 | 1983 | } |
6d6f0db0 SR |
1984 | rQi += this._fb_Bpp; |
1985 | } else { | |
1986 | color = this._FBU.foreground; | |
1987 | } | |
1988 | var xy = rQ[rQi]; | |
1989 | rQi++; | |
1990 | var sx = (xy >> 4); | |
1991 | var sy = (xy & 0x0f); | |
a7a89626 | 1992 | |
6d6f0db0 SR |
1993 | var wh = rQ[rQi]; |
1994 | rQi++; | |
1995 | var sw = (wh >> 4) + 1; | |
1996 | var sh = (wh & 0x0f) + 1; | |
a7a89626 | 1997 | |
6d6f0db0 | 1998 | this._display.subTile(sx, sy, sw, sh, color); |
b1dee947 | 1999 | } |
a7a89626 | 2000 | } |
6d6f0db0 | 2001 | this._display.finishTile(); |
a7a89626 | 2002 | } |
6d6f0db0 SR |
2003 | this._sock.set_rQi(rQi); |
2004 | this._FBU.lastsubencoding = this._FBU.subencoding; | |
2005 | this._FBU.bytes = 0; | |
2006 | this._FBU.tiles--; | |
2007 | } | |
d065cad9 | 2008 | |
6d6f0db0 SR |
2009 | if (this._FBU.tiles === 0) { |
2010 | this._FBU.rects--; | |
2011 | } | |
b1dee947 | 2012 | |
6d6f0db0 SR |
2013 | return true; |
2014 | }, | |
b1dee947 | 2015 | |
6d6f0db0 SR |
2016 | getTightCLength: function (arr) { |
2017 | var header = 1, data = 0; | |
2018 | data += arr[0] & 0x7f; | |
2019 | if (arr[0] & 0x80) { | |
2020 | header++; | |
2021 | data += (arr[1] & 0x7f) << 7; | |
2022 | if (arr[1] & 0x80) { | |
b1dee947 | 2023 | header++; |
6d6f0db0 | 2024 | data += arr[2] << 14; |
b1dee947 | 2025 | } |
6d6f0db0 SR |
2026 | } |
2027 | return [header, data]; | |
2028 | }, | |
2029 | ||
2030 | display_tight: function (isTightPNG) { | |
2031 | if (this._fb_depth === 1) { | |
2032 | this._fail("Internal error", | |
2033 | "Tight protocol handler only implements " + | |
2034 | "true color mode"); | |
2035 | } | |
9b75bcaa | 2036 | |
6d6f0db0 SR |
2037 | this._FBU.bytes = 1; // compression-control byte |
2038 | if (this._sock.rQwait("TIGHT compression-control", this._FBU.bytes)) { return false; } | |
2039 | ||
2040 | var checksum = function (data) { | |
2041 | var sum = 0; | |
2042 | for (var i = 0; i < data.length; i++) { | |
2043 | sum += data[i]; | |
2044 | if (sum > 65536) sum -= 65536; | |
2045 | } | |
2046 | return sum; | |
2047 | }; | |
2048 | ||
2049 | var resetStreams = 0; | |
2050 | var streamId = -1; | |
2051 | var decompress = function (data, expected) { | |
2052 | for (var i = 0; i < 4; i++) { | |
2053 | if ((resetStreams >> i) & 1) { | |
2054 | this._FBU.zlibs[i].reset(); | |
2055 | Log.Info("Reset zlib stream " + i); | |
b1dee947 | 2056 | } |
6d6f0db0 | 2057 | } |
de84e098 | 2058 | |
6d6f0db0 SR |
2059 | //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0); |
2060 | var uncompressed = this._FBU.zlibs[streamId].inflate(data, true, expected); | |
2061 | /*if (uncompressed.status !== 0) { | |
2062 | Log.Error("Invalid data in zlib stream"); | |
2063 | }*/ | |
2064 | ||
2065 | //return uncompressed.data; | |
2066 | return uncompressed; | |
2067 | }.bind(this); | |
2068 | ||
2069 | var indexedToRGBX2Color = function (data, palette, width, height) { | |
2070 | // Convert indexed (palette based) image data to RGB | |
2071 | // TODO: reduce number of calculations inside loop | |
2072 | var dest = this._destBuff; | |
2073 | var w = Math.floor((width + 7) / 8); | |
2074 | var w1 = Math.floor(width / 8); | |
2075 | ||
2076 | /*for (var y = 0; y < height; y++) { | |
2077 | var b, x, dp, sp; | |
2078 | var yoffset = y * width; | |
2079 | var ybitoffset = y * w; | |
2080 | var xoffset, targetbyte; | |
2081 | for (x = 0; x < w1; x++) { | |
d1800d09 SR |
2082 | xoffset = yoffset + x * 8; |
2083 | targetbyte = data[ybitoffset + x]; | |
6d6f0db0 | 2084 | for (b = 7; b >= 0; b--) { |
d1800d09 SR |
2085 | dp = (xoffset + 7 - b) * 3; |
2086 | sp = (targetbyte >> b & 1) * 3; | |
2087 | dest[dp] = palette[sp]; | |
2088 | dest[dp + 1] = palette[sp + 1]; | |
2089 | dest[dp + 2] = palette[sp + 2]; | |
2090 | } | |
6d6f0db0 SR |
2091 | } |
2092 | ||
2093 | xoffset = yoffset + x * 8; | |
2094 | targetbyte = data[ybitoffset + x]; | |
2095 | for (b = 7; b >= 8 - width % 8; b--) { | |
2096 | dp = (xoffset + 7 - b) * 3; | |
2097 | sp = (targetbyte >> b & 1) * 3; | |
2098 | dest[dp] = palette[sp]; | |
2099 | dest[dp + 1] = palette[sp + 1]; | |
2100 | dest[dp + 2] = palette[sp + 2]; | |
2101 | } | |
2102 | }*/ | |
d1800d09 | 2103 | |
6d6f0db0 SR |
2104 | for (var y = 0; y < height; y++) { |
2105 | var b, x, dp, sp; | |
2106 | for (x = 0; x < w1; x++) { | |
2107 | for (b = 7; b >= 0; b--) { | |
d1800d09 SR |
2108 | dp = (y * width + x * 8 + 7 - b) * 4; |
2109 | sp = (data[y * w + x] >> b & 1) * 3; | |
2110 | dest[dp] = palette[sp]; | |
2111 | dest[dp + 1] = palette[sp + 1]; | |
2112 | dest[dp + 2] = palette[sp + 2]; | |
2113 | dest[dp + 3] = 255; | |
e16ad2fd JM |
2114 | } |
2115 | } | |
b1dee947 | 2116 | |
6d6f0db0 SR |
2117 | for (b = 7; b >= 8 - width % 8; b--) { |
2118 | dp = (y * width + x * 8 + 7 - b) * 4; | |
2119 | sp = (data[y * w + x] >> b & 1) * 3; | |
2120 | dest[dp] = palette[sp]; | |
2121 | dest[dp + 1] = palette[sp + 1]; | |
2122 | dest[dp + 2] = palette[sp + 2]; | |
2123 | dest[dp + 3] = 255; | |
d1800d09 | 2124 | } |
6d6f0db0 | 2125 | } |
d1800d09 | 2126 | |
6d6f0db0 SR |
2127 | return dest; |
2128 | }.bind(this); | |
2129 | ||
2130 | var indexedToRGBX = function (data, palette, width, height) { | |
2131 | // Convert indexed (palette based) image data to RGB | |
2132 | var dest = this._destBuff; | |
2133 | var total = width * height * 4; | |
2134 | for (var i = 0, j = 0; i < total; i += 4, j++) { | |
2135 | var sp = data[j] * 3; | |
2136 | dest[i] = palette[sp]; | |
2137 | dest[i + 1] = palette[sp + 1]; | |
2138 | dest[i + 2] = palette[sp + 2]; | |
2139 | dest[i + 3] = 255; | |
2140 | } | |
2141 | ||
2142 | return dest; | |
2143 | }.bind(this); | |
2144 | ||
2145 | var rQi = this._sock.get_rQi(); | |
2146 | var rQ = this._sock.rQwhole(); | |
2147 | var cmode, data; | |
2148 | var cl_header, cl_data; | |
2149 | ||
2150 | var handlePalette = function () { | |
2151 | var numColors = rQ[rQi + 2] + 1; | |
2152 | var paletteSize = numColors * this._fb_depth; | |
2153 | this._FBU.bytes += paletteSize; | |
2154 | if (this._sock.rQwait("TIGHT palette " + cmode, this._FBU.bytes)) { return false; } | |
2155 | ||
2156 | var bpp = (numColors <= 2) ? 1 : 8; | |
2157 | var rowSize = Math.floor((this._FBU.width * bpp + 7) / 8); | |
2158 | var raw = false; | |
2159 | if (rowSize * this._FBU.height < 12) { | |
2160 | raw = true; | |
2161 | cl_header = 0; | |
2162 | cl_data = rowSize * this._FBU.height; | |
2163 | //clength = [0, rowSize * this._FBU.height]; | |
2164 | } else { | |
2165 | // begin inline getTightCLength (returning two-item arrays is bad for performance with GC) | |
2166 | var cl_offset = rQi + 3 + paletteSize; | |
2167 | cl_header = 1; | |
2168 | cl_data = 0; | |
2169 | cl_data += rQ[cl_offset] & 0x7f; | |
2170 | if (rQ[cl_offset] & 0x80) { | |
2171 | cl_header++; | |
2172 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2173 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2174 | cl_header++; |
6d6f0db0 | 2175 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2176 | } |
e16ad2fd | 2177 | } |
6d6f0db0 SR |
2178 | // end inline getTightCLength |
2179 | } | |
b1dee947 | 2180 | |
6d6f0db0 SR |
2181 | this._FBU.bytes += cl_header + cl_data; |
2182 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2183 | |
6d6f0db0 SR |
2184 | // Shift ctl, filter id, num colors, palette entries, and clength off |
2185 | this._sock.rQskipBytes(3); | |
2186 | //var palette = this._sock.rQshiftBytes(paletteSize); | |
2187 | this._sock.rQshiftTo(this._paletteBuff, paletteSize); | |
2188 | this._sock.rQskipBytes(cl_header); | |
b1dee947 | 2189 | |
6d6f0db0 SR |
2190 | if (raw) { |
2191 | data = this._sock.rQshiftBytes(cl_data); | |
2192 | } else { | |
2193 | data = decompress(this._sock.rQshiftBytes(cl_data), rowSize * this._FBU.height); | |
2194 | } | |
b1dee947 | 2195 | |
6d6f0db0 SR |
2196 | // Convert indexed (palette based) image data to RGB |
2197 | var rgbx; | |
2198 | if (numColors == 2) { | |
2199 | rgbx = indexedToRGBX2Color(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2200 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2201 | } else { | |
2202 | rgbx = indexedToRGBX(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2203 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2204 | } | |
b1dee947 | 2205 | |
b1dee947 | 2206 | |
6d6f0db0 SR |
2207 | return true; |
2208 | }.bind(this); | |
2209 | ||
2210 | var handleCopy = function () { | |
2211 | var raw = false; | |
2212 | var uncompressedSize = this._FBU.width * this._FBU.height * this._fb_depth; | |
2213 | if (uncompressedSize < 12) { | |
2214 | raw = true; | |
2215 | cl_header = 0; | |
2216 | cl_data = uncompressedSize; | |
2217 | } else { | |
2218 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2219 | var cl_offset = rQi + 1; | |
2220 | cl_header = 1; | |
2221 | cl_data = 0; | |
2222 | cl_data += rQ[cl_offset] & 0x7f; | |
2223 | if (rQ[cl_offset] & 0x80) { | |
2224 | cl_header++; | |
2225 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2226 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2227 | cl_header++; |
6d6f0db0 | 2228 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2229 | } |
b1dee947 | 2230 | } |
6d6f0db0 SR |
2231 | // end inline getTightCLength |
2232 | } | |
2233 | this._FBU.bytes = 1 + cl_header + cl_data; | |
2234 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2235 | |
6d6f0db0 SR |
2236 | // Shift ctl, clength off |
2237 | this._sock.rQshiftBytes(1 + cl_header); | |
b1dee947 | 2238 | |
6d6f0db0 SR |
2239 | if (raw) { |
2240 | data = this._sock.rQshiftBytes(cl_data); | |
2241 | } else { | |
2242 | data = decompress(this._sock.rQshiftBytes(cl_data), uncompressedSize); | |
2243 | } | |
b1dee947 | 2244 | |
6d6f0db0 | 2245 | this._display.blitRgbImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, data, 0, false); |
b1dee947 | 2246 | |
6d6f0db0 SR |
2247 | return true; |
2248 | }.bind(this); | |
b1dee947 | 2249 | |
6d6f0db0 | 2250 | var ctl = this._sock.rQpeek8(); |
b1dee947 | 2251 | |
6d6f0db0 SR |
2252 | // Keep tight reset bits |
2253 | resetStreams = ctl & 0xF; | |
b1dee947 | 2254 | |
6d6f0db0 SR |
2255 | // Figure out filter |
2256 | ctl = ctl >> 4; | |
2257 | streamId = ctl & 0x3; | |
b1dee947 | 2258 | |
6d6f0db0 SR |
2259 | if (ctl === 0x08) cmode = "fill"; |
2260 | else if (ctl === 0x09) cmode = "jpeg"; | |
2261 | else if (ctl === 0x0A) cmode = "png"; | |
2262 | else if (ctl & 0x04) cmode = "filter"; | |
2263 | else if (ctl < 0x04) cmode = "copy"; | |
2264 | else return this._fail("Unexpected server message", | |
2265 | "Illegal tight compression received, " + | |
2266 | "ctl: " + ctl); | |
b1dee947 | 2267 | |
6d6f0db0 SR |
2268 | if (isTightPNG && (cmode === "filter" || cmode === "copy")) { |
2269 | return this._fail("Unexpected server message", | |
2270 | "filter/copy received in tightPNG mode"); | |
2271 | } | |
de84e098 | 2272 | |
6d6f0db0 SR |
2273 | switch (cmode) { |
2274 | // fill use fb_depth because TPIXELs drop the padding byte | |
2275 | case "fill": // TPIXEL | |
2276 | this._FBU.bytes += this._fb_depth; | |
2277 | break; | |
2278 | case "jpeg": // max clength | |
2279 | this._FBU.bytes += 3; | |
2280 | break; | |
2281 | case "png": // max clength | |
2282 | this._FBU.bytes += 3; | |
2283 | break; | |
2284 | case "filter": // filter id + num colors if palette | |
2285 | this._FBU.bytes += 2; | |
2286 | break; | |
2287 | case "copy": | |
2288 | break; | |
2289 | } | |
d065cad9 | 2290 | |
6d6f0db0 | 2291 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } |
b1dee947 | 2292 | |
6d6f0db0 SR |
2293 | // Determine FBU.bytes |
2294 | switch (cmode) { | |
2295 | case "fill": | |
2296 | // skip ctl byte | |
2297 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, [rQ[rQi + 3], rQ[rQi + 2], rQ[rQi + 1]], false); | |
2298 | this._sock.rQskipBytes(4); | |
2299 | break; | |
2300 | case "png": | |
2301 | case "jpeg": | |
2302 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2303 | var cl_offset = rQi + 1; | |
2304 | cl_header = 1; | |
2305 | cl_data = 0; | |
2306 | cl_data += rQ[cl_offset] & 0x7f; | |
2307 | if (rQ[cl_offset] & 0x80) { | |
2308 | cl_header++; | |
2309 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2310 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2311 | cl_header++; |
6d6f0db0 | 2312 | cl_data += rQ[cl_offset + 2] << 14; |
b1dee947 | 2313 | } |
6d6f0db0 SR |
2314 | } |
2315 | // end inline getTightCLength | |
2316 | this._FBU.bytes = 1 + cl_header + cl_data; // ctl + clength size + jpeg-data | |
2317 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
798340b9 | 2318 | |
6d6f0db0 SR |
2319 | // We have everything, render it |
2320 | this._sock.rQskipBytes(1 + cl_header); // shift off clt + compact length | |
2321 | data = this._sock.rQshiftBytes(cl_data); | |
2322 | this._display.imageRect(this._FBU.x, this._FBU.y, "image/" + cmode, data); | |
2323 | break; | |
2324 | case "filter": | |
2325 | var filterId = rQ[rQi + 1]; | |
2326 | if (filterId === 1) { | |
2327 | if (!handlePalette()) { return false; } | |
b0ec6509 | 2328 | } else { |
6d6f0db0 SR |
2329 | // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter |
2330 | // Filter 2, Gradient is valid but not use if jpeg is enabled | |
2331 | this._fail("Unexpected server message", | |
2332 | "Unsupported tight subencoding received, " + | |
2333 | "filter: " + filterId); | |
b0ec6509 | 2334 | } |
6d6f0db0 SR |
2335 | break; |
2336 | case "copy": | |
2337 | if (!handleCopy()) { return false; } | |
2338 | break; | |
2339 | } | |
b0ec6509 | 2340 | |
6d6f0db0 SR |
2341 | |
2342 | this._FBU.bytes = 0; | |
2343 | this._FBU.rects--; | |
2344 | ||
2345 | return true; | |
2346 | }, | |
2347 | ||
2348 | TIGHT: function () { return this._encHandlers.display_tight(false); }, | |
2349 | TIGHT_PNG: function () { return this._encHandlers.display_tight(true); }, | |
2350 | ||
2351 | last_rect: function () { | |
2352 | this._FBU.rects = 0; | |
2353 | return true; | |
2354 | }, | |
2355 | ||
2356 | handle_FB_resize: function () { | |
2357 | this._fb_width = this._FBU.width; | |
2358 | this._fb_height = this._FBU.height; | |
2359 | this._destBuff = new Uint8Array(this._fb_width * this._fb_height * 4); | |
2360 | this._display.resize(this._fb_width, this._fb_height); | |
2361 | this._onFBResize(this, this._fb_width, this._fb_height); | |
2362 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
2363 | this._updateContinuousUpdates(); | |
2364 | ||
2365 | this._FBU.bytes = 0; | |
2366 | this._FBU.rects -= 1; | |
2367 | return true; | |
2368 | }, | |
2369 | ||
2370 | ExtendedDesktopSize: function () { | |
2371 | this._FBU.bytes = 1; | |
2372 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2373 | ||
2374 | this._supportsSetDesktopSize = true; | |
2375 | var number_of_screens = this._sock.rQpeek8(); | |
2376 | ||
2377 | this._FBU.bytes = 4 + (number_of_screens * 16); | |
2378 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2379 | ||
2380 | this._sock.rQskipBytes(1); // number-of-screens | |
2381 | this._sock.rQskipBytes(3); // padding | |
2382 | ||
2383 | for (var i = 0; i < number_of_screens; i += 1) { | |
2384 | // Save the id and flags of the first screen | |
2385 | if (i === 0) { | |
2386 | this._screen_id = this._sock.rQshiftBytes(4); // id | |
2387 | this._sock.rQskipBytes(2); // x-position | |
2388 | this._sock.rQskipBytes(2); // y-position | |
2389 | this._sock.rQskipBytes(2); // width | |
2390 | this._sock.rQskipBytes(2); // height | |
2391 | this._screen_flags = this._sock.rQshiftBytes(4); // flags | |
2392 | } else { | |
2393 | this._sock.rQskipBytes(16); | |
798340b9 | 2394 | } |
6d6f0db0 | 2395 | } |
b0ec6509 | 2396 | |
6d6f0db0 SR |
2397 | /* |
2398 | * The x-position indicates the reason for the change: | |
2399 | * | |
2400 | * 0 - server resized on its own | |
2401 | * 1 - this client requested the resize | |
2402 | * 2 - another client requested the resize | |
2403 | */ | |
b0ec6509 | 2404 | |
6d6f0db0 SR |
2405 | // We need to handle errors when we requested the resize. |
2406 | if (this._FBU.x === 1 && this._FBU.y !== 0) { | |
2407 | var msg = ""; | |
2408 | // The y-position indicates the status code from the server | |
2409 | switch (this._FBU.y) { | |
2410 | case 1: | |
2411 | msg = "Resize is administratively prohibited"; | |
2412 | break; | |
2413 | case 2: | |
2414 | msg = "Out of resources"; | |
2415 | break; | |
2416 | case 3: | |
2417 | msg = "Invalid screen layout"; | |
2418 | break; | |
2419 | default: | |
2420 | msg = "Unknown reason"; | |
2421 | break; | |
2422 | } | |
2423 | this._notification("Server did not accept the resize request: " | |
2424 | + msg, 'normal'); | |
b1dee947 | 2425 | return true; |
6d6f0db0 | 2426 | } |
b1dee947 | 2427 | |
6d6f0db0 SR |
2428 | this._encHandlers.handle_FB_resize(); |
2429 | return true; | |
2430 | }, | |
b1dee947 | 2431 | |
6d6f0db0 SR |
2432 | DesktopSize: function () { |
2433 | this._encHandlers.handle_FB_resize(); | |
2434 | return true; | |
2435 | }, | |
8db09746 | 2436 | |
6d6f0db0 SR |
2437 | Cursor: function () { |
2438 | Log.Debug(">> set_cursor"); | |
2439 | var x = this._FBU.x; // hotspot-x | |
2440 | var y = this._FBU.y; // hotspot-y | |
2441 | var w = this._FBU.width; | |
2442 | var h = this._FBU.height; | |
8db09746 | 2443 | |
6d6f0db0 SR |
2444 | var pixelslength = w * h * this._fb_Bpp; |
2445 | var masklength = Math.floor((w + 7) / 8) * h; | |
a7a89626 | 2446 | |
6d6f0db0 SR |
2447 | this._FBU.bytes = pixelslength + masklength; |
2448 | if (this._sock.rQwait("cursor encoding", this._FBU.bytes)) { return false; } | |
b1dee947 | 2449 | |
6d6f0db0 SR |
2450 | this._display.changeCursor(this._sock.rQshiftBytes(pixelslength), |
2451 | this._sock.rQshiftBytes(masklength), | |
2452 | x, y, w, h); | |
b1dee947 | 2453 | |
6d6f0db0 SR |
2454 | this._FBU.bytes = 0; |
2455 | this._FBU.rects--; | |
8f06673a | 2456 | |
6d6f0db0 SR |
2457 | Log.Debug("<< set_cursor"); |
2458 | return true; | |
2459 | }, | |
25e4928f | 2460 | |
6d6f0db0 SR |
2461 | QEMUExtendedKeyEvent: function () { |
2462 | this._FBU.rects--; | |
25e4928f | 2463 | |
6d6f0db0 SR |
2464 | var keyboardEvent = document.createEvent("keyboardEvent"); |
2465 | if (keyboardEvent.code !== undefined) { | |
2466 | this._qemuExtKeyEventSupported = true; | |
058be785 | 2467 | } |
6d6f0db0 SR |
2468 | }, |
2469 | ||
2470 | JPEG_quality_lo: function () { | |
2471 | Log.Error("Server sent jpeg_quality pseudo-encoding"); | |
2472 | }, | |
2473 | ||
2474 | compress_lo: function () { | |
2475 | Log.Error("Server sent compress level pseudo-encoding"); | |
2476 | } | |
2477 | }; |