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Commit | Line | Data |
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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 | 17 | import Display from "./display.js"; |
c1e2785f SM |
18 | import Keyboard from "./input/keyboard.js"; |
19 | import Mouse from "./input/mouse.js"; | |
3ae0bb09 SR |
20 | import Websock from "./websock.js"; |
21 | import Base64 from "./base64.js"; | |
22 | import DES from "./des.js"; | |
23 | import KeyTable from "./input/keysym.js"; | |
24 | import XtScancode from "./input/xtscancodes.js"; | |
fba220c6 | 25 | import Inflator from "./inflator.js"; |
f8ec2df2 | 26 | import { encodings, encodingName } from "./encodings.js"; |
3ae0bb09 | 27 | |
b1dee947 | 28 | /*jslint white: false, browser: true */ |
ae510306 | 29 | /*global window, Util, Display, Keyboard, Mouse, Websock, Websock_native, Base64, DES, KeyTable, Inflator, XtScancode */ |
a7a89626 | 30 | |
3d7bb020 | 31 | export default function RFB(target, defaults) { |
b1dee947 | 32 | "use strict"; |
ae510306 SR |
33 | if (!defaults) { |
34 | defaults = {}; | |
35 | } | |
3d7bb020 | 36 | this._target = target; |
ae510306 | 37 | |
c7d08d72 | 38 | // Connection details |
5b4e5d01 | 39 | this._url = ''; |
430f00d6 | 40 | this._rfb_credentials = {}; |
ae510306 | 41 | |
c7d08d72 | 42 | // Internal state |
3bb12056 | 43 | this._rfb_connection_state = ''; |
c00ee156 | 44 | this._rfb_init_state = ''; |
ae510306 | 45 | this._rfb_auth_scheme = ''; |
3bb12056 | 46 | this._rfb_disconnect_reason = ""; |
ae510306 | 47 | |
c7d08d72 PO |
48 | // Server capabilities |
49 | this._rfb_version = 0; | |
50 | this._rfb_max_version = 3.8; | |
ae510306 SR |
51 | this._rfb_tightvnc = false; |
52 | this._rfb_xvp_ver = 0; | |
53 | ||
c7d08d72 PO |
54 | this._fb_width = 0; |
55 | this._fb_height = 0; | |
56 | ||
57 | this._fb_name = ""; | |
58 | ||
832be262 | 59 | this._capabilities = { power: false, resize: false }; |
cd523e8f | 60 | |
c7d08d72 | 61 | this._supportsFence = false; |
ae510306 | 62 | |
c7d08d72 PO |
63 | this._supportsContinuousUpdates = false; |
64 | this._enabledContinuousUpdates = false; | |
65 | ||
66 | this._supportsSetDesktopSize = false; | |
67 | this._screen_id = 0; | |
68 | this._screen_flags = 0; | |
69 | ||
70 | this._qemuExtKeyEventSupported = false; | |
71 | ||
72 | // Internal objects | |
ae510306 SR |
73 | this._sock = null; // Websock object |
74 | this._display = null; // Display object | |
d9ca5e5b | 75 | this._flushing = false; // Display flushing state |
ae510306 SR |
76 | this._keyboard = null; // Keyboard input handler object |
77 | this._mouse = null; // Mouse input handler object | |
ae510306 | 78 | |
c7d08d72 PO |
79 | // Timers |
80 | this._disconnTimer = null; // disconnection timer | |
ae510306 | 81 | |
c7d08d72 PO |
82 | // Decoder states and stats |
83 | this._encHandlers = {}; | |
84 | this._encStats = {}; | |
ae510306 | 85 | |
ae510306 SR |
86 | this._FBU = { |
87 | rects: 0, | |
c7d08d72 | 88 | subrects: 0, // RRE and HEXTILE |
ae510306 SR |
89 | lines: 0, // RAW |
90 | tiles: 0, // HEXTILE | |
91 | bytes: 0, | |
92 | x: 0, | |
93 | y: 0, | |
94 | width: 0, | |
95 | height: 0, | |
96 | encoding: 0, | |
97 | subencoding: -1, | |
98 | background: null, | |
c7d08d72 | 99 | zlibs: [] // TIGHT zlib streams |
ae510306 | 100 | }; |
c7d08d72 PO |
101 | for (var i = 0; i < 4; i++) { |
102 | this._FBU.zlibs[i] = new Inflator(); | |
103 | } | |
b1dee947 | 104 | |
ae510306 SR |
105 | this._destBuff = null; |
106 | this._paletteBuff = new Uint8Array(1024); // 256 * 4 (max palette size * max bytes-per-pixel) | |
b1dee947 | 107 | |
ae510306 | 108 | this._rre_chunk_sz = 100; |
b1dee947 | 109 | |
ae510306 SR |
110 | this._timing = { |
111 | last_fbu: 0, | |
112 | fbu_total: 0, | |
113 | fbu_total_cnt: 0, | |
114 | full_fbu_total: 0, | |
115 | full_fbu_cnt: 0, | |
b1dee947 | 116 | |
ae510306 SR |
117 | fbu_rt_start: 0, |
118 | fbu_rt_total: 0, | |
119 | fbu_rt_cnt: 0, | |
120 | pixels: 0 | |
121 | }; | |
122 | ||
ae510306 SR |
123 | // Mouse state |
124 | this._mouse_buttonMask = 0; | |
125 | this._mouse_arr = []; | |
126 | this._viewportDragging = false; | |
127 | this._viewportDragPos = {}; | |
128 | this._viewportHasMoved = false; | |
129 | ||
ae510306 | 130 | // set the default value on user-facing properties |
6d6f0db0 | 131 | set_defaults(this, defaults, { |
ae510306 | 132 | 'local_cursor': false, // Request locally rendered cursor |
ae510306 | 133 | 'view_only': false, // Disable client mouse/keyboard |
ae510306 | 134 | 'disconnectTimeout': 3, // Time (s) to wait for disconnection |
ae510306 SR |
135 | 'viewportDrag': false, // Move the viewport on mouse drags |
136 | ||
137 | // Callback functions | |
3bb12056 | 138 | 'onUpdateState': function () { }, // onUpdateState(rfb, state, oldstate): connection state change |
a7127fee | 139 | 'onNotification': function () { }, // onNotification(rfb, msg, level, options): notification for UI |
3bb12056 | 140 | 'onDisconnected': function () { }, // onDisconnected(rfb, reason): disconnection finished |
430f00d6 | 141 | 'onCredentialsRequired': function () { }, // onCredentialsRequired(rfb, types): VNC credentials are required |
ae510306 SR |
142 | 'onClipboard': function () { }, // onClipboard(rfb, text): RFB clipboard contents received |
143 | 'onBell': function () { }, // onBell(rfb): RFB Bell message received | |
ae510306 SR |
144 | 'onFBResize': function () { }, // onFBResize(rfb, width, height): frame buffer resized |
145 | 'onDesktopName': function () { }, // onDesktopName(rfb, name): desktop name received | |
cd523e8f | 146 | 'onCapabilities': function () { } // onCapabilities(rfb, caps): the supported capabilities has changed |
ae510306 SR |
147 | }); |
148 | ||
149 | // main setup | |
6d6f0db0 | 150 | Log.Debug(">> RFB.constructor"); |
ae510306 | 151 | |
45808617 PO |
152 | // Target canvas must be able to have focus |
153 | if (!this._target.hasAttribute('tabindex')) { | |
154 | this._target.tabIndex = -1; | |
155 | } | |
156 | ||
ae510306 | 157 | // populate encHandlers with bound versions |
cd230363 SM |
158 | this._encHandlers[encodings.encodingRaw] = RFB.encodingHandlers.RAW.bind(this); |
159 | this._encHandlers[encodings.encodingCopyRect] = RFB.encodingHandlers.COPYRECT.bind(this); | |
160 | this._encHandlers[encodings.encodingRRE] = RFB.encodingHandlers.RRE.bind(this); | |
161 | this._encHandlers[encodings.encodingHextile] = RFB.encodingHandlers.HEXTILE.bind(this); | |
162 | this._encHandlers[encodings.encodingTight] = RFB.encodingHandlers.TIGHT.bind(this); | |
163 | ||
164 | this._encHandlers[encodings.pseudoEncodingDesktopSize] = RFB.encodingHandlers.DesktopSize.bind(this); | |
165 | this._encHandlers[encodings.pseudoEncodingLastRect] = RFB.encodingHandlers.last_rect.bind(this); | |
166 | this._encHandlers[encodings.pseudoEncodingCursor] = RFB.encodingHandlers.Cursor.bind(this); | |
167 | this._encHandlers[encodings.pseudoEncodingQEMUExtendedKeyEvent] = RFB.encodingHandlers.QEMUExtendedKeyEvent.bind(this); | |
168 | this._encHandlers[encodings.pseudoEncodingExtendedDesktopSize] = RFB.encodingHandlers.ExtendedDesktopSize.bind(this); | |
ae510306 SR |
169 | |
170 | // NB: nothing that needs explicit teardown should be done | |
171 | // before this point, since this can throw an exception | |
172 | try { | |
3d7bb020 PO |
173 | this._display = new Display(this._target, |
174 | {onFlush: this._onFlush.bind(this)}); | |
ae510306 | 175 | } catch (exc) { |
6d6f0db0 | 176 | Log.Error("Display exception: " + exc); |
ae510306 SR |
177 | throw exc; |
178 | } | |
c7d08d72 | 179 | this._display.clear(); |
ae510306 | 180 | |
3d7bb020 PO |
181 | this._keyboard = new Keyboard(this._target, |
182 | {onKeyEvent: this._handleKeyEvent.bind(this)}); | |
ae510306 | 183 | |
3d7bb020 PO |
184 | this._mouse = new Mouse(this._target, |
185 | {onMouseButton: this._handleMouseButton.bind(this), | |
9e6f71cb | 186 | onMouseMove: this._handleMouseMove.bind(this)}); |
ae510306 SR |
187 | |
188 | this._sock = new Websock(); | |
189 | this._sock.on('message', this._handle_message.bind(this)); | |
190 | this._sock.on('open', function () { | |
c2a4d3ef | 191 | if ((this._rfb_connection_state === 'connecting') && |
c00ee156 SM |
192 | (this._rfb_init_state === '')) { |
193 | this._rfb_init_state = 'ProtocolVersion'; | |
6d6f0db0 | 194 | Log.Debug("Starting VNC handshake"); |
ae510306 | 195 | } else { |
67cd2072 | 196 | this._fail("Unexpected server connection"); |
ae510306 SR |
197 | } |
198 | }.bind(this)); | |
199 | this._sock.on('close', function (e) { | |
6d6f0db0 | 200 | Log.Warn("WebSocket on-close event"); |
ae510306 SR |
201 | var msg = ""; |
202 | if (e.code) { | |
203 | msg = " (code: " + e.code; | |
204 | if (e.reason) { | |
205 | msg += ", reason: " + e.reason; | |
b1dee947 | 206 | } |
ae510306 SR |
207 | msg += ")"; |
208 | } | |
c00ee156 | 209 | switch (this._rfb_connection_state) { |
c2a4d3ef | 210 | case 'disconnecting': |
3bb12056 | 211 | this._updateConnectionState('disconnected'); |
c00ee156 | 212 | break; |
c2a4d3ef | 213 | case 'connecting': |
67cd2072 | 214 | this._fail('Failed to connect to server', msg); |
c00ee156 | 215 | break; |
b45905ab SM |
216 | case 'connected': |
217 | // Handle disconnects that were initiated server-side | |
218 | this._updateConnectionState('disconnecting'); | |
219 | this._updateConnectionState('disconnected'); | |
220 | break; | |
c00ee156 | 221 | case 'disconnected': |
67cd2072 SM |
222 | this._fail("Unexpected server disconnect", |
223 | "Already disconnected: " + msg); | |
c00ee156 SM |
224 | break; |
225 | default: | |
67cd2072 SM |
226 | this._fail("Unexpected server disconnect", |
227 | "Not in any state yet: " + msg); | |
c00ee156 | 228 | break; |
a679a97d | 229 | } |
ae510306 SR |
230 | this._sock.off('close'); |
231 | }.bind(this)); | |
232 | this._sock.on('error', function (e) { | |
6d6f0db0 | 233 | Log.Warn("WebSocket on-error event"); |
ae510306 | 234 | }); |
8db09746 | 235 | |
6d6f0db0 | 236 | Log.Debug("<< RFB.constructor"); |
ae510306 | 237 | }; |
a7a89626 | 238 | |
6d6f0db0 SR |
239 | RFB.prototype = { |
240 | // Public methods | |
3d7bb020 | 241 | connect: function (url, options) { |
5b4e5d01 PO |
242 | if (!url) { |
243 | this._fail(_("Must specify URL")); | |
244 | return; | |
6d6f0db0 | 245 | } |
a7a89626 | 246 | |
3d7bb020 PO |
247 | this._url = url; |
248 | ||
249 | options = options || {} | |
250 | ||
251 | this._rfb_credentials = options.credentials || {}; | |
252 | this._shared = 'shared' in options ? !!options.shared : true; | |
253 | this._repeaterID = options.repeaterID || ''; | |
254 | ||
6d6f0db0 SR |
255 | this._rfb_init_state = ''; |
256 | this._updateConnectionState('connecting'); | |
257 | return true; | |
258 | }, | |
259 | ||
260 | disconnect: function () { | |
261 | this._updateConnectionState('disconnecting'); | |
262 | this._sock.off('error'); | |
263 | this._sock.off('message'); | |
264 | this._sock.off('open'); | |
265 | }, | |
266 | ||
430f00d6 PO |
267 | sendCredentials: function (creds) { |
268 | this._rfb_credentials = creds; | |
6d6f0db0 SR |
269 | setTimeout(this._init_msg.bind(this), 0); |
270 | }, | |
271 | ||
272 | sendCtrlAltDel: function () { | |
273 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } | |
274 | Log.Info("Sending Ctrl-Alt-Del"); | |
275 | ||
94f5cf05 PO |
276 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", true); |
277 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", true); | |
278 | this.sendKey(KeyTable.XK_Delete, "Delete", true); | |
279 | this.sendKey(KeyTable.XK_Delete, "Delete", false); | |
280 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", false); | |
281 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", false); | |
282 | ||
6d6f0db0 SR |
283 | return true; |
284 | }, | |
285 | ||
cd523e8f PO |
286 | machineShutdown: function () { |
287 | this._xvpOp(1, 2); | |
6d6f0db0 SR |
288 | }, |
289 | ||
cd523e8f PO |
290 | machineReboot: function () { |
291 | this._xvpOp(1, 3); | |
6d6f0db0 SR |
292 | }, |
293 | ||
cd523e8f PO |
294 | machineReset: function () { |
295 | this._xvpOp(1, 4); | |
6d6f0db0 SR |
296 | }, |
297 | ||
298 | // Send a key press. If 'down' is not specified then send a down key | |
299 | // followed by an up key. | |
94f5cf05 | 300 | sendKey: function (keysym, code, down) { |
6d6f0db0 | 301 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } |
94f5cf05 PO |
302 | |
303 | if (down === undefined) { | |
304 | this.sendKey(keysym, code, true); | |
305 | this.sendKey(keysym, code, false); | |
306 | return true; | |
307 | } | |
308 | ||
be70fe0a | 309 | var scancode = XtScancode[code]; |
94f5cf05 | 310 | |
be70fe0a | 311 | if (this._qemuExtKeyEventSupported && scancode) { |
459ed008 PO |
312 | // 0 is NoSymbol |
313 | keysym = keysym || 0; | |
314 | ||
94f5cf05 PO |
315 | Log.Info("Sending key (" + (down ? "down" : "up") + "): keysym " + keysym + ", scancode " + scancode); |
316 | ||
317 | RFB.messages.QEMUExtendedKeyEvent(this._sock, keysym, down, scancode); | |
318 | } else { | |
459ed008 PO |
319 | if (!keysym) { |
320 | return false; | |
321 | } | |
6d6f0db0 SR |
322 | Log.Info("Sending keysym (" + (down ? "down" : "up") + "): " + keysym); |
323 | RFB.messages.keyEvent(this._sock, keysym, down ? 1 : 0); | |
6d6f0db0 | 324 | } |
94f5cf05 | 325 | |
6d6f0db0 SR |
326 | return true; |
327 | }, | |
328 | ||
329 | clipboardPasteFrom: function (text) { | |
330 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return; } | |
331 | RFB.messages.clientCutText(this._sock, text); | |
332 | }, | |
333 | ||
b9854a5c PO |
334 | autoscale: function (width, height, downscaleOnly) { |
335 | if (this._rfb_connection_state !== 'connected') { return; } | |
336 | this._display.autoscale(width, height, downscaleOnly); | |
337 | }, | |
338 | ||
339 | viewportChangeSize: function(width, height) { | |
340 | if (this._rfb_connection_state !== 'connected') { return; } | |
341 | this._display.viewportChangeSize(width, height); | |
342 | }, | |
343 | ||
344 | clippingDisplay: function () { | |
345 | if (this._rfb_connection_state !== 'connected') { return false; } | |
346 | return this._display.clippingDisplay(); | |
347 | }, | |
348 | ||
6d6f0db0 SR |
349 | // Requests a change of remote desktop size. This message is an extension |
350 | // and may only be sent if we have received an ExtendedDesktopSize message | |
351 | requestDesktopSize: function (width, height) { | |
352 | if (this._rfb_connection_state !== 'connected' || | |
353 | this._view_only) { | |
354 | return false; | |
355 | } | |
e3efeb32 | 356 | |
6d6f0db0 SR |
357 | if (this._supportsSetDesktopSize) { |
358 | RFB.messages.setDesktopSize(this._sock, width, height, | |
359 | this._screen_id, this._screen_flags); | |
360 | this._sock.flush(); | |
4e0c36dd | 361 | return true; |
6d6f0db0 SR |
362 | } else { |
363 | return false; | |
364 | } | |
365 | }, | |
b1dee947 | 366 | |
b1dee947 | 367 | |
6d6f0db0 | 368 | // Private methods |
b0ec6509 | 369 | |
6d6f0db0 SR |
370 | _connect: function () { |
371 | Log.Debug(">> RFB.connect"); | |
b0ec6509 | 372 | |
5b4e5d01 | 373 | Log.Info("connecting to " + this._url); |
b1dee947 | 374 | |
6d6f0db0 SR |
375 | try { |
376 | // WebSocket.onopen transitions to the RFB init states | |
f8318361 | 377 | this._sock.open(this._url, ['binary']); |
6d6f0db0 SR |
378 | } catch (e) { |
379 | if (e.name === 'SyntaxError') { | |
380 | this._fail("Invalid host or port value given", e); | |
b1dee947 | 381 | } else { |
6d6f0db0 | 382 | this._fail("Error while connecting", e); |
159ad55d | 383 | } |
6d6f0db0 | 384 | } |
e3efeb32 | 385 | |
2afda544 PO |
386 | // Always grab focus on some kind of click event |
387 | this._target.addEventListener("mousedown", this._focusCanvas); | |
388 | this._target.addEventListener("touchstart", this._focusCanvas); | |
389 | ||
6d6f0db0 SR |
390 | Log.Debug("<< RFB.connect"); |
391 | }, | |
392 | ||
393 | _disconnect: function () { | |
394 | Log.Debug(">> RFB.disconnect"); | |
2afda544 PO |
395 | this._target.removeEventListener("mousedown", this._focusCanvas); |
396 | this._target.removeEventListener("touchstart", this._focusCanvas); | |
6d6f0db0 SR |
397 | this._cleanup(); |
398 | this._sock.close(); | |
399 | this._print_stats(); | |
400 | Log.Debug("<< RFB.disconnect"); | |
401 | }, | |
402 | ||
6d6f0db0 | 403 | _print_stats: function () { |
c3386227 PO |
404 | var stats = this._encStats; |
405 | ||
6d6f0db0 | 406 | Log.Info("Encoding stats for this connection:"); |
c3386227 PO |
407 | Object.keys(stats).forEach(function (key) { |
408 | var s = stats[key]; | |
6d6f0db0 | 409 | if (s[0] + s[1] > 0) { |
c3386227 | 410 | Log.Info(" " + encodingName(key) + ": " + s[0] + " rects"); |
b1dee947 | 411 | } |
c3386227 | 412 | }); |
a7a89626 | 413 | |
6d6f0db0 | 414 | Log.Info("Encoding stats since page load:"); |
c3386227 PO |
415 | Object.keys(stats).forEach(function (key) { |
416 | var s = stats[key]; | |
417 | Log.Info(" " + encodingName(key) + ": " + s[1] + " rects"); | |
418 | }); | |
6d6f0db0 SR |
419 | }, |
420 | ||
421 | _cleanup: function () { | |
422 | if (!this._view_only) { this._keyboard.ungrab(); } | |
423 | if (!this._view_only) { this._mouse.ungrab(); } | |
424 | this._display.defaultCursor(); | |
425 | if (Log.get_logging() !== 'debug') { | |
c7d08d72 | 426 | // Show noVNC logo when disconnected, unless in |
6d6f0db0 SR |
427 | // debug mode |
428 | this._display.clear(); | |
429 | } | |
430 | }, | |
431 | ||
2afda544 PO |
432 | // Event handler for canvas so this points to the canvas element |
433 | _focusCanvas: function(event) { | |
434 | // Respect earlier handlers' request to not do side-effects | |
435 | if (!event.defaultPrevented) | |
436 | this.focus(); | |
437 | }, | |
438 | ||
6d6f0db0 SR |
439 | /* |
440 | * Connection states: | |
441 | * connecting | |
442 | * connected | |
443 | * disconnecting | |
444 | * disconnected - permanent state | |
445 | */ | |
446 | _updateConnectionState: function (state) { | |
447 | var oldstate = this._rfb_connection_state; | |
448 | ||
449 | if (state === oldstate) { | |
450 | Log.Debug("Already in state '" + state + "', ignoring"); | |
451 | return; | |
452 | } | |
453 | ||
454 | // The 'disconnected' state is permanent for each RFB object | |
455 | if (oldstate === 'disconnected') { | |
456 | Log.Error("Tried changing state of a disconnected RFB object"); | |
457 | return; | |
458 | } | |
459 | ||
460 | // Ensure proper transitions before doing anything | |
461 | switch (state) { | |
462 | case 'connected': | |
463 | if (oldstate !== 'connecting') { | |
464 | Log.Error("Bad transition to connected state, " + | |
465 | "previous connection state: " + oldstate); | |
466 | return; | |
b1dee947 | 467 | } |
6d6f0db0 | 468 | break; |
a7a89626 | 469 | |
6d6f0db0 SR |
470 | case 'disconnected': |
471 | if (oldstate !== 'disconnecting') { | |
472 | Log.Error("Bad transition to disconnected state, " + | |
473 | "previous connection state: " + oldstate); | |
474 | return; | |
475 | } | |
476 | break; | |
a7a89626 | 477 | |
6d6f0db0 SR |
478 | case 'connecting': |
479 | if (oldstate !== '') { | |
480 | Log.Error("Bad transition to connecting state, " + | |
481 | "previous connection state: " + oldstate); | |
482 | return; | |
483 | } | |
484 | break; | |
b1dee947 | 485 | |
6d6f0db0 SR |
486 | case 'disconnecting': |
487 | if (oldstate !== 'connected' && oldstate !== 'connecting') { | |
488 | Log.Error("Bad transition to disconnecting state, " + | |
489 | "previous connection state: " + oldstate); | |
490 | return; | |
491 | } | |
492 | break; | |
a679a97d | 493 | |
6d6f0db0 SR |
494 | default: |
495 | Log.Error("Unknown connection state: " + state); | |
3bb12056 | 496 | return; |
6d6f0db0 | 497 | } |
b1dee947 | 498 | |
6d6f0db0 | 499 | // State change actions |
3bb12056 | 500 | |
6d6f0db0 SR |
501 | this._rfb_connection_state = state; |
502 | this._onUpdateState(this, state, oldstate); | |
b2e961d4 | 503 | |
6d6f0db0 SR |
504 | var smsg = "New state '" + state + "', was '" + oldstate + "'."; |
505 | Log.Debug(smsg); | |
b2e961d4 | 506 | |
6d6f0db0 SR |
507 | if (this._disconnTimer && state !== 'disconnecting') { |
508 | Log.Debug("Clearing disconnect timer"); | |
509 | clearTimeout(this._disconnTimer); | |
510 | this._disconnTimer = null; | |
3bb12056 | 511 | |
6d6f0db0 SR |
512 | // make sure we don't get a double event |
513 | this._sock.off('close'); | |
514 | } | |
b2e961d4 | 515 | |
6d6f0db0 SR |
516 | switch (state) { |
517 | case 'disconnected': | |
518 | // Call onDisconnected callback after onUpdateState since | |
519 | // we don't know if the UI only displays the latest message | |
520 | if (this._rfb_disconnect_reason !== "") { | |
521 | this._onDisconnected(this, this._rfb_disconnect_reason); | |
522 | } else { | |
523 | // No reason means clean disconnect | |
524 | this._onDisconnected(this); | |
525 | } | |
526 | break; | |
b2e961d4 | 527 | |
6d6f0db0 SR |
528 | case 'connecting': |
529 | this._connect(); | |
530 | break; | |
b2e961d4 | 531 | |
6d6f0db0 SR |
532 | case 'disconnecting': |
533 | this._disconnect(); | |
b2e961d4 | 534 | |
6d6f0db0 SR |
535 | this._disconnTimer = setTimeout(function () { |
536 | this._rfb_disconnect_reason = _("Disconnect timeout"); | |
537 | this._updateConnectionState('disconnected'); | |
538 | }.bind(this), this._disconnectTimeout * 1000); | |
539 | break; | |
540 | } | |
541 | }, | |
542 | ||
543 | /* Print errors and disconnect | |
544 | * | |
545 | * The optional parameter 'details' is used for information that | |
546 | * should be logged but not sent to the user interface. | |
547 | */ | |
548 | _fail: function (msg, details) { | |
549 | var fullmsg = msg; | |
550 | if (typeof details !== 'undefined') { | |
551 | fullmsg = msg + " (" + details + ")"; | |
552 | } | |
553 | switch (this._rfb_connection_state) { | |
554 | case 'disconnecting': | |
555 | Log.Error("Failed when disconnecting: " + fullmsg); | |
556 | break; | |
557 | case 'connected': | |
558 | Log.Error("Failed while connected: " + fullmsg); | |
559 | break; | |
560 | case 'connecting': | |
561 | Log.Error("Failed when connecting: " + fullmsg); | |
562 | break; | |
563 | default: | |
564 | Log.Error("RFB failure: " + fullmsg); | |
565 | break; | |
566 | } | |
567 | this._rfb_disconnect_reason = msg; //This is sent to the UI | |
568 | ||
569 | // Transition to disconnected without waiting for socket to close | |
570 | this._updateConnectionState('disconnecting'); | |
571 | this._updateConnectionState('disconnected'); | |
572 | ||
573 | return false; | |
574 | }, | |
575 | ||
576 | /* | |
577 | * Send a notification to the UI. Valid levels are: | |
578 | * 'normal'|'warn'|'error' | |
579 | * | |
580 | * NOTE: Options could be added in the future. | |
581 | * NOTE: If this function is called multiple times, remember that the | |
582 | * interface could be only showing the latest notification. | |
583 | */ | |
584 | _notification: function(msg, level, options) { | |
585 | switch (level) { | |
586 | case 'normal': | |
587 | case 'warn': | |
588 | case 'error': | |
589 | Log.Debug("Notification[" + level + "]:" + msg); | |
590 | break; | |
591 | default: | |
592 | Log.Error("Invalid notification level: " + level); | |
593 | return; | |
594 | } | |
b2e961d4 | 595 | |
6d6f0db0 SR |
596 | if (options) { |
597 | this._onNotification(this, msg, level, options); | |
598 | } else { | |
599 | this._onNotification(this, msg, level); | |
600 | } | |
601 | }, | |
b1dee947 | 602 | |
832be262 PO |
603 | _setCapability: function (cap, val) { |
604 | this._capabilities[cap] = val; | |
605 | this._onCapabilities(this, this._capabilities); | |
606 | }, | |
607 | ||
6d6f0db0 SR |
608 | _handle_message: function () { |
609 | if (this._sock.rQlen() === 0) { | |
610 | Log.Warn("handle_message called on an empty receive queue"); | |
611 | return; | |
612 | } | |
b1dee947 | 613 | |
6d6f0db0 SR |
614 | switch (this._rfb_connection_state) { |
615 | case 'disconnected': | |
616 | Log.Error("Got data while disconnected"); | |
617 | break; | |
618 | case 'connected': | |
619 | while (true) { | |
620 | if (this._flushing) { | |
621 | break; | |
622 | } | |
623 | if (!this._normal_msg()) { | |
624 | break; | |
625 | } | |
626 | if (this._sock.rQlen() === 0) { | |
627 | break; | |
628 | } | |
629 | } | |
630 | break; | |
631 | default: | |
632 | this._init_msg(); | |
633 | break; | |
634 | } | |
635 | }, | |
3bb12056 | 636 | |
d0703d1b PO |
637 | _handleKeyEvent: function (keysym, code, down) { |
638 | this.sendKey(keysym, code, down); | |
6d6f0db0 | 639 | }, |
06a9ef0c | 640 | |
6d6f0db0 SR |
641 | _handleMouseButton: function (x, y, down, bmask) { |
642 | if (down) { | |
643 | this._mouse_buttonMask |= bmask; | |
644 | } else { | |
270bdbd7 | 645 | this._mouse_buttonMask &= ~bmask; |
6d6f0db0 | 646 | } |
a7127fee | 647 | |
6d6f0db0 SR |
648 | if (this._viewportDrag) { |
649 | if (down && !this._viewportDragging) { | |
650 | this._viewportDragging = true; | |
651 | this._viewportDragPos = {'x': x, 'y': y}; | |
a7127fee | 652 | |
6d6f0db0 | 653 | // Skip sending mouse events |
b1dee947 | 654 | return; |
6d6f0db0 SR |
655 | } else { |
656 | this._viewportDragging = false; | |
8db09746 | 657 | |
6d6f0db0 SR |
658 | // If the viewport didn't actually move, then treat as a mouse click event |
659 | // Send the button down event here, as the button up event is sent at the end of this function | |
660 | if (!this._viewportHasMoved && !this._view_only) { | |
661 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), bmask); | |
662 | } | |
663 | this._viewportHasMoved = false; | |
b1dee947 | 664 | } |
6d6f0db0 | 665 | } |
8db09746 | 666 | |
6d6f0db0 | 667 | if (this._view_only) { return; } // View only, skip mouse events |
8f06673a | 668 | |
6d6f0db0 SR |
669 | if (this._rfb_connection_state !== 'connected') { return; } |
670 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
671 | }, | |
8db09746 | 672 | |
6d6f0db0 SR |
673 | _handleMouseMove: function (x, y) { |
674 | if (this._viewportDragging) { | |
675 | var deltaX = this._viewportDragPos.x - x; | |
676 | var deltaY = this._viewportDragPos.y - y; | |
8db09746 | 677 | |
6d6f0db0 SR |
678 | // The goal is to trigger on a certain physical width, the |
679 | // devicePixelRatio brings us a bit closer but is not optimal. | |
680 | var dragThreshold = 10 * (window.devicePixelRatio || 1); | |
8db09746 | 681 | |
6d6f0db0 SR |
682 | if (this._viewportHasMoved || (Math.abs(deltaX) > dragThreshold || |
683 | Math.abs(deltaY) > dragThreshold)) { | |
684 | this._viewportHasMoved = true; | |
27e77d46 | 685 | |
6d6f0db0 SR |
686 | this._viewportDragPos = {'x': x, 'y': y}; |
687 | this._display.viewportChangePos(deltaX, deltaY); | |
b50f3406 | 688 | } |
8db09746 | 689 | |
6d6f0db0 SR |
690 | // Skip sending mouse events |
691 | return; | |
692 | } | |
b1dee947 | 693 | |
6d6f0db0 | 694 | if (this._view_only) { return; } // View only, skip mouse events |
b1dee947 | 695 | |
6d6f0db0 SR |
696 | if (this._rfb_connection_state !== 'connected') { return; } |
697 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
698 | }, | |
b1dee947 | 699 | |
6d6f0db0 | 700 | // Message Handlers |
27e77d46 | 701 | |
6d6f0db0 SR |
702 | _negotiate_protocol_version: function () { |
703 | if (this._sock.rQlen() < 12) { | |
704 | return this._fail("Error while negotiating with server", | |
705 | "Incomplete protocol version"); | |
706 | } | |
32df3fdb | 707 | |
6d6f0db0 SR |
708 | var sversion = this._sock.rQshiftStr(12).substr(4, 7); |
709 | Log.Info("Server ProtocolVersion: " + sversion); | |
710 | var is_repeater = 0; | |
711 | switch (sversion) { | |
712 | case "000.000": // UltraVNC repeater | |
713 | is_repeater = 1; | |
714 | break; | |
715 | case "003.003": | |
716 | case "003.006": // UltraVNC | |
717 | case "003.889": // Apple Remote Desktop | |
718 | this._rfb_version = 3.3; | |
719 | break; | |
720 | case "003.007": | |
721 | this._rfb_version = 3.7; | |
722 | break; | |
723 | case "003.008": | |
724 | case "004.000": // Intel AMT KVM | |
725 | case "004.001": // RealVNC 4.6 | |
726 | case "005.000": // RealVNC 5.3 | |
727 | this._rfb_version = 3.8; | |
728 | break; | |
729 | default: | |
730 | return this._fail("Unsupported server", | |
731 | "Invalid server version: " + sversion); | |
732 | } | |
8db09746 | 733 | |
6d6f0db0 | 734 | if (is_repeater) { |
ebf1c0f9 | 735 | var repeaterID = "ID:" + this._repeaterID; |
6d6f0db0 SR |
736 | while (repeaterID.length < 250) { |
737 | repeaterID += "\0"; | |
b1dee947 | 738 | } |
6d6f0db0 SR |
739 | this._sock.send_string(repeaterID); |
740 | return true; | |
741 | } | |
b1dee947 | 742 | |
6d6f0db0 SR |
743 | if (this._rfb_version > this._rfb_max_version) { |
744 | this._rfb_version = this._rfb_max_version; | |
745 | } | |
b1dee947 | 746 | |
6d6f0db0 SR |
747 | var cversion = "00" + parseInt(this._rfb_version, 10) + |
748 | ".00" + ((this._rfb_version * 10) % 10); | |
749 | this._sock.send_string("RFB " + cversion + "\n"); | |
750 | Log.Debug('Sent ProtocolVersion: ' + cversion); | |
b1dee947 | 751 | |
6d6f0db0 SR |
752 | this._rfb_init_state = 'Security'; |
753 | }, | |
b1dee947 | 754 | |
6d6f0db0 SR |
755 | _negotiate_security: function () { |
756 | // Polyfill since IE and PhantomJS doesn't have | |
757 | // TypedArray.includes() | |
758 | function includes(item, array) { | |
759 | for (var i = 0; i < array.length; i++) { | |
760 | if (array[i] === item) { | |
761 | return true; | |
762 | } | |
b1dee947 | 763 | } |
6d6f0db0 SR |
764 | return false; |
765 | } | |
b1dee947 | 766 | |
6d6f0db0 SR |
767 | if (this._rfb_version >= 3.7) { |
768 | // Server sends supported list, client decides | |
769 | var num_types = this._sock.rQshift8(); | |
770 | if (this._sock.rQwait("security type", num_types, 1)) { return false; } | |
b1dee947 | 771 | |
6d6f0db0 SR |
772 | if (num_types === 0) { |
773 | var strlen = this._sock.rQshift32(); | |
774 | var reason = this._sock.rQshiftStr(strlen); | |
775 | return this._fail("Error while negotiating with server", | |
776 | "Security failure: " + reason); | |
777 | } | |
778 | ||
779 | var types = this._sock.rQshiftBytes(num_types); | |
780 | Log.Debug("Server security types: " + types); | |
781 | ||
782 | // Look for each auth in preferred order | |
783 | this._rfb_auth_scheme = 0; | |
784 | if (includes(1, types)) { | |
785 | this._rfb_auth_scheme = 1; // None | |
786 | } else if (includes(22, types)) { | |
787 | this._rfb_auth_scheme = 22; // XVP | |
788 | } else if (includes(16, types)) { | |
789 | this._rfb_auth_scheme = 16; // Tight | |
790 | } else if (includes(2, types)) { | |
791 | this._rfb_auth_scheme = 2; // VNC Auth | |
792 | } else { | |
793 | return this._fail("Unsupported server", | |
794 | "Unsupported security types: " + types); | |
8db09746 | 795 | } |
b1dee947 | 796 | |
6d6f0db0 SR |
797 | this._sock.send([this._rfb_auth_scheme]); |
798 | } else { | |
799 | // Server decides | |
800 | if (this._sock.rQwait("security scheme", 4)) { return false; } | |
801 | this._rfb_auth_scheme = this._sock.rQshift32(); | |
802 | } | |
b1dee947 | 803 | |
6d6f0db0 SR |
804 | this._rfb_init_state = 'Authentication'; |
805 | Log.Debug('Authenticating using scheme: ' + this._rfb_auth_scheme); | |
b1dee947 | 806 | |
6d6f0db0 SR |
807 | return this._init_msg(); // jump to authentication |
808 | }, | |
b1dee947 | 809 | |
6d6f0db0 SR |
810 | // authentication |
811 | _negotiate_xvp_auth: function () { | |
430f00d6 PO |
812 | if (!this._rfb_credentials.username || |
813 | !this._rfb_credentials.password || | |
814 | !this._rfb_credentials.target) { | |
815 | this._onCredentialsRequired(this, ["username", "password", "target"]); | |
6d6f0db0 SR |
816 | return false; |
817 | } | |
0ee5ca6e | 818 | |
430f00d6 PO |
819 | var xvp_auth_str = String.fromCharCode(this._rfb_credentials.username.length) + |
820 | String.fromCharCode(this._rfb_credentials.target.length) + | |
821 | this._rfb_credentials.username + | |
822 | this._rfb_credentials.target; | |
6d6f0db0 | 823 | this._sock.send_string(xvp_auth_str); |
6d6f0db0 SR |
824 | this._rfb_auth_scheme = 2; |
825 | return this._negotiate_authentication(); | |
826 | }, | |
827 | ||
828 | _negotiate_std_vnc_auth: function () { | |
abfe5b7a SM |
829 | if (this._sock.rQwait("auth challenge", 16)) { return false; } |
830 | ||
430f00d6 PO |
831 | if (!this._rfb_credentials.password) { |
832 | this._onCredentialsRequired(this, ["password"]); | |
6d6f0db0 SR |
833 | return false; |
834 | } | |
b1dee947 | 835 | |
6d6f0db0 SR |
836 | // TODO(directxman12): make genDES not require an Array |
837 | var challenge = Array.prototype.slice.call(this._sock.rQshiftBytes(16)); | |
430f00d6 | 838 | var response = RFB.genDES(this._rfb_credentials.password, challenge); |
6d6f0db0 SR |
839 | this._sock.send(response); |
840 | this._rfb_init_state = "SecurityResult"; | |
841 | return true; | |
842 | }, | |
843 | ||
844 | _negotiate_tight_tunnels: function (numTunnels) { | |
845 | var clientSupportedTunnelTypes = { | |
846 | 0: { vendor: 'TGHT', signature: 'NOTUNNEL' } | |
847 | }; | |
848 | var serverSupportedTunnelTypes = {}; | |
849 | // receive tunnel capabilities | |
850 | for (var i = 0; i < numTunnels; i++) { | |
851 | var cap_code = this._sock.rQshift32(); | |
852 | var cap_vendor = this._sock.rQshiftStr(4); | |
853 | var cap_signature = this._sock.rQshiftStr(8); | |
854 | serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature }; | |
855 | } | |
856 | ||
857 | // choose the notunnel type | |
858 | if (serverSupportedTunnelTypes[0]) { | |
859 | if (serverSupportedTunnelTypes[0].vendor != clientSupportedTunnelTypes[0].vendor || | |
860 | serverSupportedTunnelTypes[0].signature != clientSupportedTunnelTypes[0].signature) { | |
861 | return this._fail("Unsupported server", | |
862 | "Client's tunnel type had the incorrect " + | |
863 | "vendor or signature"); | |
b1dee947 | 864 | } |
6d6f0db0 SR |
865 | this._sock.send([0, 0, 0, 0]); // use NOTUNNEL |
866 | return false; // wait until we receive the sub auth count to continue | |
867 | } else { | |
868 | return this._fail("Unsupported server", | |
869 | "Server wanted tunnels, but doesn't support " + | |
870 | "the notunnel type"); | |
871 | } | |
872 | }, | |
b1dee947 | 873 | |
6d6f0db0 SR |
874 | _negotiate_tight_auth: function () { |
875 | if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation | |
876 | if (this._sock.rQwait("num tunnels", 4)) { return false; } | |
877 | var numTunnels = this._sock.rQshift32(); | |
878 | if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; } | |
c00ee156 | 879 | |
6d6f0db0 | 880 | this._rfb_tightvnc = true; |
b1dee947 | 881 | |
6d6f0db0 SR |
882 | if (numTunnels > 0) { |
883 | this._negotiate_tight_tunnels(numTunnels); | |
884 | return false; // wait until we receive the sub auth to continue | |
b1dee947 | 885 | } |
6d6f0db0 | 886 | } |
b1dee947 | 887 | |
6d6f0db0 SR |
888 | // second pass, do the sub-auth negotiation |
889 | if (this._sock.rQwait("sub auth count", 4)) { return false; } | |
890 | var subAuthCount = this._sock.rQshift32(); | |
891 | if (subAuthCount === 0) { // empty sub-auth list received means 'no auth' subtype selected | |
892 | this._rfb_init_state = 'SecurityResult'; | |
893 | return true; | |
894 | } | |
b1dee947 | 895 | |
6d6f0db0 | 896 | if (this._sock.rQwait("sub auth capabilities", 16 * subAuthCount, 4)) { return false; } |
b1dee947 | 897 | |
6d6f0db0 SR |
898 | var clientSupportedTypes = { |
899 | 'STDVNOAUTH__': 1, | |
900 | 'STDVVNCAUTH_': 2 | |
901 | }; | |
b1dee947 | 902 | |
6d6f0db0 | 903 | var serverSupportedTypes = []; |
95eb681b | 904 | |
6d6f0db0 SR |
905 | for (var i = 0; i < subAuthCount; i++) { |
906 | var capNum = this._sock.rQshift32(); | |
907 | var capabilities = this._sock.rQshiftStr(12); | |
908 | serverSupportedTypes.push(capabilities); | |
909 | } | |
d86cc2d9 | 910 | |
6d6f0db0 SR |
911 | for (var authType in clientSupportedTypes) { |
912 | if (serverSupportedTypes.indexOf(authType) != -1) { | |
913 | this._sock.send([0, 0, 0, clientSupportedTypes[authType]]); | |
d86cc2d9 | 914 | |
6d6f0db0 SR |
915 | switch (authType) { |
916 | case 'STDVNOAUTH__': // no auth | |
917 | this._rfb_init_state = 'SecurityResult'; | |
918 | return true; | |
919 | case 'STDVVNCAUTH_': // VNC auth | |
920 | this._rfb_auth_scheme = 2; | |
921 | return this._init_msg(); | |
922 | default: | |
923 | return this._fail("Unsupported server", | |
924 | "Unsupported tiny auth scheme: " + | |
925 | authType); | |
b1dee947 SR |
926 | } |
927 | } | |
6d6f0db0 | 928 | } |
b1dee947 | 929 | |
6d6f0db0 SR |
930 | return this._fail("Unsupported server", |
931 | "No supported sub-auth types!"); | |
932 | }, | |
933 | ||
934 | _negotiate_authentication: function () { | |
935 | switch (this._rfb_auth_scheme) { | |
936 | case 0: // connection failed | |
937 | if (this._sock.rQwait("auth reason", 4)) { return false; } | |
938 | var strlen = this._sock.rQshift32(); | |
939 | var reason = this._sock.rQshiftStr(strlen); | |
940 | return this._fail("Authentication failure", reason); | |
941 | ||
942 | case 1: // no auth | |
943 | if (this._rfb_version >= 3.8) { | |
944 | this._rfb_init_state = 'SecurityResult'; | |
945 | return true; | |
946 | } | |
947 | this._rfb_init_state = 'ClientInitialisation'; | |
948 | return this._init_msg(); | |
95eb681b | 949 | |
6d6f0db0 SR |
950 | case 22: // XVP auth |
951 | return this._negotiate_xvp_auth(); | |
d86cc2d9 | 952 | |
6d6f0db0 SR |
953 | case 2: // VNC authentication |
954 | return this._negotiate_std_vnc_auth(); | |
d86cc2d9 | 955 | |
6d6f0db0 SR |
956 | case 16: // TightVNC Security Type |
957 | return this._negotiate_tight_auth(); | |
d86cc2d9 | 958 | |
6d6f0db0 SR |
959 | default: |
960 | return this._fail("Unsupported server", | |
961 | "Unsupported auth scheme: " + | |
962 | this._rfb_auth_scheme); | |
963 | } | |
964 | }, | |
965 | ||
966 | _handle_security_result: function () { | |
967 | if (this._sock.rQwait('VNC auth response ', 4)) { return false; } | |
968 | switch (this._sock.rQshift32()) { | |
969 | case 0: // OK | |
970 | this._rfb_init_state = 'ClientInitialisation'; | |
971 | Log.Debug('Authentication OK'); | |
972 | return this._init_msg(); | |
973 | case 1: // failed | |
974 | if (this._rfb_version >= 3.8) { | |
975 | var length = this._sock.rQshift32(); | |
976 | if (this._sock.rQwait("SecurityResult reason", length, 8)) { return false; } | |
977 | var reason = this._sock.rQshiftStr(length); | |
978 | return this._fail("Authentication failure", reason); | |
979 | } else { | |
980 | return this._fail("Authentication failure"); | |
d86cc2d9 | 981 | } |
6d6f0db0 SR |
982 | case 2: |
983 | return this._fail("Too many authentication attempts"); | |
984 | default: | |
985 | return this._fail("Unsupported server", | |
986 | "Unknown SecurityResult"); | |
987 | } | |
988 | }, | |
989 | ||
990 | _negotiate_server_init: function () { | |
991 | if (this._sock.rQwait("server initialization", 24)) { return false; } | |
992 | ||
993 | /* Screen size */ | |
91d5c625 PO |
994 | var width = this._sock.rQshift16(); |
995 | var height = this._sock.rQshift16(); | |
6d6f0db0 SR |
996 | |
997 | /* PIXEL_FORMAT */ | |
998 | var bpp = this._sock.rQshift8(); | |
999 | var depth = this._sock.rQshift8(); | |
1000 | var big_endian = this._sock.rQshift8(); | |
1001 | var true_color = this._sock.rQshift8(); | |
1002 | ||
1003 | var red_max = this._sock.rQshift16(); | |
1004 | var green_max = this._sock.rQshift16(); | |
1005 | var blue_max = this._sock.rQshift16(); | |
1006 | var red_shift = this._sock.rQshift8(); | |
1007 | var green_shift = this._sock.rQshift8(); | |
1008 | var blue_shift = this._sock.rQshift8(); | |
1009 | this._sock.rQskipBytes(3); // padding | |
1010 | ||
1011 | // NB(directxman12): we don't want to call any callbacks or print messages until | |
1012 | // *after* we're past the point where we could backtrack | |
1013 | ||
1014 | /* Connection name/title */ | |
1015 | var name_length = this._sock.rQshift32(); | |
1016 | if (this._sock.rQwait('server init name', name_length, 24)) { return false; } | |
1017 | this._fb_name = decodeUTF8(this._sock.rQshiftStr(name_length)); | |
1018 | ||
1019 | if (this._rfb_tightvnc) { | |
1020 | if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; } | |
1021 | // In TightVNC mode, ServerInit message is extended | |
1022 | var numServerMessages = this._sock.rQshift16(); | |
1023 | var numClientMessages = this._sock.rQshift16(); | |
1024 | var numEncodings = this._sock.rQshift16(); | |
1025 | this._sock.rQskipBytes(2); // padding | |
1026 | ||
1027 | var totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16; | |
1028 | if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; } | |
1029 | ||
1030 | // we don't actually do anything with the capability information that TIGHT sends, | |
1031 | // so we just skip the all of this. | |
1032 | ||
1033 | // TIGHT server message capabilities | |
1034 | this._sock.rQskipBytes(16 * numServerMessages); | |
1035 | ||
1036 | // TIGHT client message capabilities | |
1037 | this._sock.rQskipBytes(16 * numClientMessages); | |
1038 | ||
1039 | // TIGHT encoding capabilities | |
1040 | this._sock.rQskipBytes(16 * numEncodings); | |
1041 | } | |
d86cc2d9 | 1042 | |
6d6f0db0 SR |
1043 | // NB(directxman12): these are down here so that we don't run them multiple times |
1044 | // if we backtrack | |
91d5c625 | 1045 | Log.Info("Screen: " + width + "x" + height + |
6d6f0db0 SR |
1046 | ", bpp: " + bpp + ", depth: " + depth + |
1047 | ", big_endian: " + big_endian + | |
1048 | ", true_color: " + true_color + | |
1049 | ", red_max: " + red_max + | |
1050 | ", green_max: " + green_max + | |
1051 | ", blue_max: " + blue_max + | |
1052 | ", red_shift: " + red_shift + | |
1053 | ", green_shift: " + green_shift + | |
1054 | ", blue_shift: " + blue_shift); | |
1055 | ||
1056 | if (big_endian !== 0) { | |
1057 | Log.Warn("Server native endian is not little endian"); | |
1058 | } | |
b1dee947 | 1059 | |
6d6f0db0 SR |
1060 | if (red_shift !== 16) { |
1061 | Log.Warn("Server native red-shift is not 16"); | |
1062 | } | |
b1dee947 | 1063 | |
6d6f0db0 SR |
1064 | if (blue_shift !== 0) { |
1065 | Log.Warn("Server native blue-shift is not 0"); | |
1066 | } | |
b1dee947 | 1067 | |
6d6f0db0 SR |
1068 | // we're past the point where we could backtrack, so it's safe to call this |
1069 | this._onDesktopName(this, this._fb_name); | |
b1dee947 | 1070 | |
91d5c625 | 1071 | this._resize(width, height); |
b1dee947 | 1072 | |
6d6f0db0 SR |
1073 | if (!this._view_only) { this._keyboard.grab(); } |
1074 | if (!this._view_only) { this._mouse.grab(); } | |
b1dee947 | 1075 | |
5a5f5ada PO |
1076 | this._fb_depth = 24; |
1077 | ||
1078 | if (this._fb_name === "Intel(r) AMT KVM") { | |
1079 | Log.Warn("Intel AMT KVM only supports 8/16 bit depths. Using low color mode."); | |
1080 | this._fb_depth = 8; | |
1081 | } | |
1082 | ||
1083 | RFB.messages.pixelFormat(this._sock, this._fb_depth, true); | |
49a81837 | 1084 | this._sendEncodings(); |
6d6f0db0 SR |
1085 | RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fb_width, this._fb_height); |
1086 | ||
1087 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1088 | this._timing.pixels = 0; | |
1089 | ||
cd74793b PO |
1090 | // Cursor will be server side until the server decides to honor |
1091 | // our request and send over the cursor image | |
1092 | this._display.disableLocalCursor(); | |
1093 | ||
6d6f0db0 SR |
1094 | this._updateConnectionState('connected'); |
1095 | return true; | |
1096 | }, | |
1097 | ||
49a81837 PO |
1098 | _sendEncodings: function () { |
1099 | var encs = []; | |
1100 | ||
1101 | // In preference order | |
1102 | encs.push(encodings.encodingCopyRect); | |
5a5f5ada PO |
1103 | // Only supported with full depth support |
1104 | if (this._fb_depth == 24) { | |
1105 | encs.push(encodings.encodingTight); | |
1106 | encs.push(encodings.encodingHextile); | |
1107 | encs.push(encodings.encodingRRE); | |
1108 | } | |
49a81837 PO |
1109 | encs.push(encodings.encodingRaw); |
1110 | ||
1111 | // Psuedo-encoding settings | |
1112 | encs.push(encodings.pseudoEncodingTightPNG); | |
1113 | encs.push(encodings.pseudoEncodingQualityLevel0 + 6); | |
1114 | encs.push(encodings.pseudoEncodingCompressLevel0 + 2); | |
1115 | ||
1116 | encs.push(encodings.pseudoEncodingDesktopSize); | |
1117 | encs.push(encodings.pseudoEncodingLastRect); | |
1118 | encs.push(encodings.pseudoEncodingQEMUExtendedKeyEvent); | |
1119 | encs.push(encodings.pseudoEncodingExtendedDesktopSize); | |
1120 | encs.push(encodings.pseudoEncodingXvp); | |
1121 | encs.push(encodings.pseudoEncodingFence); | |
1122 | encs.push(encodings.pseudoEncodingContinuousUpdates); | |
1123 | ||
5a5f5ada | 1124 | if (this._local_cursor && this._fb_depth == 24) { |
49a81837 PO |
1125 | encs.push(encodings.pseudoEncodingCursor); |
1126 | } | |
1127 | ||
1128 | RFB.messages.clientEncodings(this._sock, encs); | |
1129 | }, | |
1130 | ||
6d6f0db0 SR |
1131 | /* RFB protocol initialization states: |
1132 | * ProtocolVersion | |
1133 | * Security | |
1134 | * Authentication | |
1135 | * SecurityResult | |
1136 | * ClientInitialization - not triggered by server message | |
1137 | * ServerInitialization | |
1138 | */ | |
1139 | _init_msg: function () { | |
1140 | switch (this._rfb_init_state) { | |
1141 | case 'ProtocolVersion': | |
1142 | return this._negotiate_protocol_version(); | |
1143 | ||
1144 | case 'Security': | |
1145 | return this._negotiate_security(); | |
1146 | ||
1147 | case 'Authentication': | |
1148 | return this._negotiate_authentication(); | |
1149 | ||
1150 | case 'SecurityResult': | |
1151 | return this._handle_security_result(); | |
1152 | ||
1153 | case 'ClientInitialisation': | |
1154 | this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation | |
1155 | this._rfb_init_state = 'ServerInitialisation'; | |
1156 | return true; | |
b1dee947 | 1157 | |
6d6f0db0 SR |
1158 | case 'ServerInitialisation': |
1159 | return this._negotiate_server_init(); | |
b1dee947 | 1160 | |
6d6f0db0 SR |
1161 | default: |
1162 | return this._fail("Internal error", "Unknown init state: " + | |
1163 | this._rfb_init_state); | |
1164 | } | |
1165 | }, | |
b1dee947 | 1166 | |
6d6f0db0 SR |
1167 | _handle_set_colour_map_msg: function () { |
1168 | Log.Debug("SetColorMapEntries"); | |
b1dee947 | 1169 | |
26586b9d | 1170 | return this._fail("Protocol error", "Unexpected SetColorMapEntries message"); |
6d6f0db0 | 1171 | }, |
b1dee947 | 1172 | |
6d6f0db0 SR |
1173 | _handle_server_cut_text: function () { |
1174 | Log.Debug("ServerCutText"); | |
b1dee947 | 1175 | |
6d6f0db0 SR |
1176 | if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; } |
1177 | this._sock.rQskipBytes(3); // Padding | |
1178 | var length = this._sock.rQshift32(); | |
1179 | if (this._sock.rQwait("ServerCutText", length, 8)) { return false; } | |
b1dee947 | 1180 | |
6d6f0db0 | 1181 | var text = this._sock.rQshiftStr(length); |
b4ff032e SR |
1182 | |
1183 | if (this._view_only) { return true; } | |
1184 | ||
6d6f0db0 | 1185 | this._onClipboard(this, text); |
b1dee947 | 1186 | |
6d6f0db0 SR |
1187 | return true; |
1188 | }, | |
b1dee947 | 1189 | |
6d6f0db0 SR |
1190 | _handle_server_fence_msg: function() { |
1191 | if (this._sock.rQwait("ServerFence header", 8, 1)) { return false; } | |
1192 | this._sock.rQskipBytes(3); // Padding | |
1193 | var flags = this._sock.rQshift32(); | |
1194 | var length = this._sock.rQshift8(); | |
b1dee947 | 1195 | |
6d6f0db0 | 1196 | if (this._sock.rQwait("ServerFence payload", length, 9)) { return false; } |
b1dee947 | 1197 | |
6d6f0db0 SR |
1198 | if (length > 64) { |
1199 | Log.Warn("Bad payload length (" + length + ") in fence response"); | |
1200 | length = 64; | |
1201 | } | |
4e0c36dd | 1202 | |
6d6f0db0 | 1203 | var payload = this._sock.rQshiftStr(length); |
b1dee947 | 1204 | |
6d6f0db0 | 1205 | this._supportsFence = true; |
b1dee947 | 1206 | |
6d6f0db0 SR |
1207 | /* |
1208 | * Fence flags | |
1209 | * | |
1210 | * (1<<0) - BlockBefore | |
1211 | * (1<<1) - BlockAfter | |
1212 | * (1<<2) - SyncNext | |
1213 | * (1<<31) - Request | |
1214 | */ | |
b1dee947 | 1215 | |
6d6f0db0 SR |
1216 | if (!(flags & (1<<31))) { |
1217 | return this._fail("Internal error", | |
1218 | "Unexpected fence response"); | |
1219 | } | |
b1dee947 | 1220 | |
6d6f0db0 SR |
1221 | // Filter out unsupported flags |
1222 | // FIXME: support syncNext | |
1223 | flags &= (1<<0) | (1<<1); | |
b1dee947 | 1224 | |
6d6f0db0 SR |
1225 | // BlockBefore and BlockAfter are automatically handled by |
1226 | // the fact that we process each incoming message | |
1227 | // synchronuosly. | |
1228 | RFB.messages.clientFence(this._sock, flags, payload); | |
f78a652e | 1229 | |
6d6f0db0 SR |
1230 | return true; |
1231 | }, | |
b1dee947 | 1232 | |
6d6f0db0 SR |
1233 | _handle_xvp_msg: function () { |
1234 | if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; } | |
1235 | this._sock.rQskip8(); // Padding | |
1236 | var xvp_ver = this._sock.rQshift8(); | |
1237 | var xvp_msg = this._sock.rQshift8(); | |
b1dee947 | 1238 | |
6d6f0db0 SR |
1239 | switch (xvp_msg) { |
1240 | case 0: // XVP_FAIL | |
1241 | Log.Error("Operation Failed"); | |
1242 | this._notification("XVP Operation Failed", 'error'); | |
1243 | break; | |
1244 | case 1: // XVP_INIT | |
1245 | this._rfb_xvp_ver = xvp_ver; | |
1246 | Log.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")"); | |
832be262 | 1247 | this._setCapability("power", true); |
6d6f0db0 SR |
1248 | break; |
1249 | default: | |
1250 | this._fail("Unexpected server message", | |
1251 | "Illegal server XVP message " + xvp_msg); | |
1252 | break; | |
1253 | } | |
b1dee947 | 1254 | |
6d6f0db0 SR |
1255 | return true; |
1256 | }, | |
3df13262 | 1257 | |
6d6f0db0 SR |
1258 | _normal_msg: function () { |
1259 | var msg_type; | |
76a86ff5 | 1260 | |
6d6f0db0 SR |
1261 | if (this._FBU.rects > 0) { |
1262 | msg_type = 0; | |
1263 | } else { | |
1264 | msg_type = this._sock.rQshift8(); | |
1265 | } | |
76a86ff5 | 1266 | |
6d6f0db0 SR |
1267 | switch (msg_type) { |
1268 | case 0: // FramebufferUpdate | |
1269 | var ret = this._framebufferUpdate(); | |
1270 | if (ret && !this._enabledContinuousUpdates) { | |
1271 | RFB.messages.fbUpdateRequest(this._sock, true, 0, 0, | |
1272 | this._fb_width, this._fb_height); | |
1273 | } | |
1274 | return ret; | |
3df13262 | 1275 | |
6d6f0db0 SR |
1276 | case 1: // SetColorMapEntries |
1277 | return this._handle_set_colour_map_msg(); | |
1278 | ||
1279 | case 2: // Bell | |
1280 | Log.Debug("Bell"); | |
1281 | this._onBell(this); | |
1282 | return true; | |
1283 | ||
1284 | case 3: // ServerCutText | |
1285 | return this._handle_server_cut_text(); | |
1286 | ||
1287 | case 150: // EndOfContinuousUpdates | |
1288 | var first = !(this._supportsContinuousUpdates); | |
1289 | this._supportsContinuousUpdates = true; | |
1290 | this._enabledContinuousUpdates = false; | |
1291 | if (first) { | |
1292 | this._enabledContinuousUpdates = true; | |
1293 | this._updateContinuousUpdates(); | |
1294 | Log.Info("Enabling continuous updates."); | |
1295 | } else { | |
1296 | // FIXME: We need to send a framebufferupdaterequest here | |
1297 | // if we add support for turning off continuous updates | |
1298 | } | |
1299 | return true; | |
3df13262 | 1300 | |
6d6f0db0 SR |
1301 | case 248: // ServerFence |
1302 | return this._handle_server_fence_msg(); | |
3df13262 | 1303 | |
6d6f0db0 SR |
1304 | case 250: // XVP |
1305 | return this._handle_xvp_msg(); | |
3df13262 | 1306 | |
6d6f0db0 SR |
1307 | default: |
1308 | this._fail("Unexpected server message", "Type:" + msg_type); | |
1309 | Log.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30)); | |
1310 | return true; | |
1311 | } | |
1312 | }, | |
3df13262 | 1313 | |
6d6f0db0 SR |
1314 | _onFlush: function() { |
1315 | this._flushing = false; | |
1316 | // Resume processing | |
1317 | if (this._sock.rQlen() > 0) { | |
1318 | this._handle_message(); | |
1319 | } | |
1320 | }, | |
3df13262 | 1321 | |
6d6f0db0 SR |
1322 | _framebufferUpdate: function () { |
1323 | var ret = true; | |
1324 | var now; | |
3df13262 | 1325 | |
6d6f0db0 SR |
1326 | if (this._FBU.rects === 0) { |
1327 | if (this._sock.rQwait("FBU header", 3, 1)) { return false; } | |
b1dee947 | 1328 | this._sock.rQskip8(); // Padding |
6d6f0db0 SR |
1329 | this._FBU.rects = this._sock.rQshift16(); |
1330 | this._FBU.bytes = 0; | |
1331 | this._timing.cur_fbu = 0; | |
1332 | if (this._timing.fbu_rt_start > 0) { | |
1333 | now = (new Date()).getTime(); | |
1334 | Log.Info("First FBU latency: " + (now - this._timing.fbu_rt_start)); | |
b1dee947 SR |
1335 | } |
1336 | ||
6d6f0db0 SR |
1337 | // Make sure the previous frame is fully rendered first |
1338 | // to avoid building up an excessive queue | |
1339 | if (this._display.pending()) { | |
1340 | this._flushing = true; | |
1341 | this._display.flush(); | |
1342 | return false; | |
1343 | } | |
1344 | } | |
b1dee947 | 1345 | |
6d6f0db0 SR |
1346 | while (this._FBU.rects > 0) { |
1347 | if (this._rfb_connection_state !== 'connected') { return false; } | |
b1dee947 | 1348 | |
6d6f0db0 SR |
1349 | if (this._sock.rQwait("FBU", this._FBU.bytes)) { return false; } |
1350 | if (this._FBU.bytes === 0) { | |
1351 | if (this._sock.rQwait("rect header", 12)) { return false; } | |
1352 | /* New FramebufferUpdate */ | |
b1dee947 | 1353 | |
6d6f0db0 SR |
1354 | var hdr = this._sock.rQshiftBytes(12); |
1355 | this._FBU.x = (hdr[0] << 8) + hdr[1]; | |
1356 | this._FBU.y = (hdr[2] << 8) + hdr[3]; | |
1357 | this._FBU.width = (hdr[4] << 8) + hdr[5]; | |
1358 | this._FBU.height = (hdr[6] << 8) + hdr[7]; | |
1359 | this._FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
1360 | (hdr[10] << 8) + hdr[11], 10); | |
b1dee947 | 1361 | |
49a81837 | 1362 | if (!this._encHandlers[this._FBU.encoding]) { |
6d6f0db0 SR |
1363 | this._fail("Unexpected server message", |
1364 | "Unsupported encoding " + | |
1365 | this._FBU.encoding); | |
1366 | return false; | |
1367 | } | |
1368 | } | |
b1dee947 | 1369 | |
6d6f0db0 | 1370 | this._timing.last_fbu = (new Date()).getTime(); |
76a86ff5 | 1371 | |
6d6f0db0 | 1372 | ret = this._encHandlers[this._FBU.encoding](); |
3df13262 | 1373 | |
6d6f0db0 SR |
1374 | now = (new Date()).getTime(); |
1375 | this._timing.cur_fbu += (now - this._timing.last_fbu); | |
b1dee947 | 1376 | |
6d6f0db0 | 1377 | if (ret) { |
c3386227 PO |
1378 | if (!(this._FBU.encoding in this._encStats)) { |
1379 | this._encStats[this._FBU.encoding] = [0, 0]; | |
1380 | } | |
6d6f0db0 SR |
1381 | this._encStats[this._FBU.encoding][0]++; |
1382 | this._encStats[this._FBU.encoding][1]++; | |
1383 | this._timing.pixels += this._FBU.width * this._FBU.height; | |
b1dee947 | 1384 | } |
b1dee947 | 1385 | |
6d6f0db0 SR |
1386 | if (this._timing.pixels >= (this._fb_width * this._fb_height)) { |
1387 | if ((this._FBU.width === this._fb_width && this._FBU.height === this._fb_height) || | |
1388 | this._timing.fbu_rt_start > 0) { | |
1389 | this._timing.full_fbu_total += this._timing.cur_fbu; | |
1390 | this._timing.full_fbu_cnt++; | |
1391 | Log.Info("Timing of full FBU, curr: " + | |
1392 | this._timing.cur_fbu + ", total: " + | |
1393 | this._timing.full_fbu_total + ", cnt: " + | |
1394 | this._timing.full_fbu_cnt + ", avg: " + | |
1395 | (this._timing.full_fbu_total / this._timing.full_fbu_cnt)); | |
b1dee947 | 1396 | } |
d9ca5e5b | 1397 | |
6d6f0db0 SR |
1398 | if (this._timing.fbu_rt_start > 0) { |
1399 | var fbu_rt_diff = now - this._timing.fbu_rt_start; | |
1400 | this._timing.fbu_rt_total += fbu_rt_diff; | |
1401 | this._timing.fbu_rt_cnt++; | |
1402 | Log.Info("full FBU round-trip, cur: " + | |
1403 | fbu_rt_diff + ", total: " + | |
1404 | this._timing.fbu_rt_total + ", cnt: " + | |
1405 | this._timing.fbu_rt_cnt + ", avg: " + | |
1406 | (this._timing.fbu_rt_total / this._timing.fbu_rt_cnt)); | |
1407 | this._timing.fbu_rt_start = 0; | |
d9ca5e5b | 1408 | } |
b1dee947 SR |
1409 | } |
1410 | ||
6d6f0db0 SR |
1411 | if (!ret) { return ret; } // need more data |
1412 | } | |
b1dee947 | 1413 | |
6d6f0db0 | 1414 | this._display.flip(); |
b1dee947 | 1415 | |
6d6f0db0 SR |
1416 | return true; // We finished this FBU |
1417 | }, | |
b1dee947 | 1418 | |
6d6f0db0 SR |
1419 | _updateContinuousUpdates: function() { |
1420 | if (!this._enabledContinuousUpdates) { return; } | |
b1dee947 | 1421 | |
6d6f0db0 SR |
1422 | RFB.messages.enableContinuousUpdates(this._sock, true, 0, 0, |
1423 | this._fb_width, this._fb_height); | |
91d5c625 PO |
1424 | }, |
1425 | ||
1426 | _resize: function(width, height) { | |
1427 | this._fb_width = width; | |
1428 | this._fb_height = height; | |
1429 | ||
1430 | this._destBuff = new Uint8Array(this._fb_width * this._fb_height * 4); | |
1431 | ||
1432 | this._display.resize(this._fb_width, this._fb_height); | |
1433 | this._onFBResize(this, this._fb_width, this._fb_height); | |
1434 | ||
1435 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1436 | this._updateContinuousUpdates(); | |
cd523e8f PO |
1437 | }, |
1438 | ||
1439 | _xvpOp: function (ver, op) { | |
1440 | if (this._rfb_xvp_ver < ver) { return; } | |
1441 | Log.Info("Sending XVP operation " + op + " (version " + ver + ")"); | |
1442 | RFB.messages.xvpOp(this._sock, ver, op); | |
1443 | }, | |
6d6f0db0 | 1444 | }; |
8db09746 | 1445 | |
6d6f0db0 | 1446 | make_properties(RFB, [ |
6d6f0db0 | 1447 | ['local_cursor', 'rw', 'bool'], // Request locally rendered cursor |
6d6f0db0 | 1448 | ['view_only', 'rw', 'bool'], // Disable client mouse/keyboard |
f976b550 | 1449 | ['touchButton', 'rw', 'int'], // Button mask (1, 2, 4) for touch devices (0 means ignore clicks) |
b9854a5c PO |
1450 | ['scale', 'rw', 'float'], // Display area scale factor |
1451 | ['viewport', 'rw', 'bool'], // Use viewport clipping | |
6d6f0db0 | 1452 | ['disconnectTimeout', 'rw', 'int'], // Time (s) to wait for disconnection |
6d6f0db0 | 1453 | ['viewportDrag', 'rw', 'bool'], // Move the viewport on mouse drags |
cd523e8f | 1454 | ['capabilities', 'ro', 'arr'], // Supported capabilities |
6d6f0db0 SR |
1455 | |
1456 | // Callback functions | |
1457 | ['onUpdateState', 'rw', 'func'], // onUpdateState(rfb, state, oldstate): connection state change | |
1458 | ['onNotification', 'rw', 'func'], // onNotification(rfb, msg, level, options): notification for the UI | |
1459 | ['onDisconnected', 'rw', 'func'], // onDisconnected(rfb, reason): disconnection finished | |
430f00d6 | 1460 | ['onCredentialsRequired', 'rw', 'func'], // onCredentialsRequired(rfb, types): VNC credentials are required |
6d6f0db0 SR |
1461 | ['onClipboard', 'rw', 'func'], // onClipboard(rfb, text): RFB clipboard contents received |
1462 | ['onBell', 'rw', 'func'], // onBell(rfb): RFB Bell message received | |
6d6f0db0 SR |
1463 | ['onFBResize', 'rw', 'func'], // onFBResize(rfb, width, height): frame buffer resized |
1464 | ['onDesktopName', 'rw', 'func'], // onDesktopName(rfb, name): desktop name received | |
cd523e8f | 1465 | ['onCapabilities', 'rw', 'func'] // onCapabilities(rfb, caps): the supported capabilities has changed |
6d6f0db0 SR |
1466 | ]); |
1467 | ||
1468 | RFB.prototype.set_local_cursor = function (cursor) { | |
1469 | if (!cursor || (cursor in {'0': 1, 'no': 1, 'false': 1})) { | |
1470 | this._local_cursor = false; | |
1471 | this._display.disableLocalCursor(); //Only show server-side cursor | |
1472 | } else { | |
1473 | if (this._display.get_cursor_uri()) { | |
1474 | this._local_cursor = true; | |
1475 | } else { | |
1476 | Log.Warn("Browser does not support local cursor"); | |
1477 | this._display.disableLocalCursor(); | |
1478 | } | |
1479 | } | |
d86cc2d9 | 1480 | |
6d6f0db0 SR |
1481 | // Need to send an updated list of encodings if we are connected |
1482 | if (this._rfb_connection_state === "connected") { | |
49a81837 | 1483 | this._sendEncodings(); |
6d6f0db0 SR |
1484 | } |
1485 | }; | |
2ba767a7 | 1486 | |
6d6f0db0 SR |
1487 | RFB.prototype.set_view_only = function (view_only) { |
1488 | this._view_only = view_only; | |
8db09746 | 1489 | |
6d6f0db0 SR |
1490 | if (this._rfb_connection_state === "connecting" || |
1491 | this._rfb_connection_state === "connected") { | |
1492 | if (view_only) { | |
1493 | this._keyboard.ungrab(); | |
1494 | this._mouse.ungrab(); | |
1495 | } else { | |
1496 | this._keyboard.grab(); | |
1497 | this._mouse.grab(); | |
1498 | } | |
1499 | } | |
1500 | }; | |
76a86ff5 | 1501 | |
f976b550 PO |
1502 | RFB.prototype.set_touchButton = function (button) { |
1503 | this._mouse.set_touchButton(button); | |
1504 | }; | |
1505 | ||
1506 | RFB.prototype.get_touchButton = function () { | |
1507 | return this._mouse.get_touchButton(); | |
1508 | }; | |
1509 | ||
b9854a5c PO |
1510 | RFB.prototype.set_scale = function (scale) { |
1511 | this._display.set_scale(scale); | |
1512 | }; | |
1513 | ||
1514 | RFB.prototype.get_scale = function () { | |
1515 | return this._display.get_scale(); | |
1516 | }; | |
1517 | ||
1518 | RFB.prototype.set_viewport = function (viewport) { | |
1519 | this._display.set_viewport(viewport); | |
1520 | }; | |
1521 | ||
1522 | RFB.prototype.get_viewport = function () { | |
1523 | return this._display.get_viewport(); | |
1524 | }; | |
1525 | ||
6d6f0db0 SR |
1526 | // Class Methods |
1527 | RFB.messages = { | |
1528 | keyEvent: function (sock, keysym, down) { | |
1529 | var buff = sock._sQ; | |
1530 | var offset = sock._sQlen; | |
8db09746 | 1531 | |
6d6f0db0 SR |
1532 | buff[offset] = 4; // msg-type |
1533 | buff[offset + 1] = down; | |
b1dee947 | 1534 | |
6d6f0db0 SR |
1535 | buff[offset + 2] = 0; |
1536 | buff[offset + 3] = 0; | |
fb49f91b | 1537 | |
6d6f0db0 SR |
1538 | buff[offset + 4] = (keysym >> 24); |
1539 | buff[offset + 5] = (keysym >> 16); | |
1540 | buff[offset + 6] = (keysym >> 8); | |
1541 | buff[offset + 7] = keysym; | |
b1dee947 | 1542 | |
6d6f0db0 SR |
1543 | sock._sQlen += 8; |
1544 | sock.flush(); | |
1545 | }, | |
ef1e8bab | 1546 | |
6d6f0db0 SR |
1547 | QEMUExtendedKeyEvent: function (sock, keysym, down, keycode) { |
1548 | function getRFBkeycode(xt_scancode) { | |
1549 | var upperByte = (keycode >> 8); | |
1550 | var lowerByte = (keycode & 0x00ff); | |
1551 | if (upperByte === 0xe0 && lowerByte < 0x7f) { | |
1552 | lowerByte = lowerByte | 0x80; | |
1553 | return lowerByte; | |
ef1e8bab | 1554 | } |
6d6f0db0 | 1555 | return xt_scancode; |
ef1e8bab | 1556 | } |
b1dee947 | 1557 | |
6d6f0db0 SR |
1558 | var buff = sock._sQ; |
1559 | var offset = sock._sQlen; | |
8f06673a | 1560 | |
6d6f0db0 SR |
1561 | buff[offset] = 255; // msg-type |
1562 | buff[offset + 1] = 0; // sub msg-type | |
8f06673a | 1563 | |
6d6f0db0 SR |
1564 | buff[offset + 2] = (down >> 8); |
1565 | buff[offset + 3] = down; | |
8f06673a | 1566 | |
6d6f0db0 SR |
1567 | buff[offset + 4] = (keysym >> 24); |
1568 | buff[offset + 5] = (keysym >> 16); | |
1569 | buff[offset + 6] = (keysym >> 8); | |
1570 | buff[offset + 7] = keysym; | |
8f06673a | 1571 | |
6d6f0db0 | 1572 | var RFBkeycode = getRFBkeycode(keycode); |
8f06673a | 1573 | |
6d6f0db0 SR |
1574 | buff[offset + 8] = (RFBkeycode >> 24); |
1575 | buff[offset + 9] = (RFBkeycode >> 16); | |
1576 | buff[offset + 10] = (RFBkeycode >> 8); | |
1577 | buff[offset + 11] = RFBkeycode; | |
8f06673a | 1578 | |
6d6f0db0 SR |
1579 | sock._sQlen += 12; |
1580 | sock.flush(); | |
1581 | }, | |
8f06673a | 1582 | |
6d6f0db0 SR |
1583 | pointerEvent: function (sock, x, y, mask) { |
1584 | var buff = sock._sQ; | |
1585 | var offset = sock._sQlen; | |
8f06673a | 1586 | |
6d6f0db0 | 1587 | buff[offset] = 5; // msg-type |
9ff86fb7 | 1588 | |
6d6f0db0 | 1589 | buff[offset + 1] = mask; |
9ff86fb7 | 1590 | |
6d6f0db0 SR |
1591 | buff[offset + 2] = x >> 8; |
1592 | buff[offset + 3] = x; | |
9ff86fb7 | 1593 | |
6d6f0db0 SR |
1594 | buff[offset + 4] = y >> 8; |
1595 | buff[offset + 5] = y; | |
9ff86fb7 | 1596 | |
6d6f0db0 SR |
1597 | sock._sQlen += 6; |
1598 | sock.flush(); | |
1599 | }, | |
9ff86fb7 | 1600 | |
6d6f0db0 SR |
1601 | // TODO(directxman12): make this unicode compatible? |
1602 | clientCutText: function (sock, text) { | |
1603 | var buff = sock._sQ; | |
1604 | var offset = sock._sQlen; | |
b1dee947 | 1605 | |
6d6f0db0 | 1606 | buff[offset] = 6; // msg-type |
9ff86fb7 | 1607 | |
6d6f0db0 SR |
1608 | buff[offset + 1] = 0; // padding |
1609 | buff[offset + 2] = 0; // padding | |
1610 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1611 | |
6d6f0db0 | 1612 | var n = text.length; |
9ff86fb7 | 1613 | |
6d6f0db0 SR |
1614 | buff[offset + 4] = n >> 24; |
1615 | buff[offset + 5] = n >> 16; | |
1616 | buff[offset + 6] = n >> 8; | |
1617 | buff[offset + 7] = n; | |
9ff86fb7 | 1618 | |
6d6f0db0 SR |
1619 | for (var i = 0; i < n; i++) { |
1620 | buff[offset + 8 + i] = text.charCodeAt(i); | |
1621 | } | |
9ff86fb7 | 1622 | |
6d6f0db0 SR |
1623 | sock._sQlen += 8 + n; |
1624 | sock.flush(); | |
1625 | }, | |
1626 | ||
1627 | setDesktopSize: function (sock, width, height, id, flags) { | |
1628 | var buff = sock._sQ; | |
1629 | var offset = sock._sQlen; | |
1630 | ||
1631 | buff[offset] = 251; // msg-type | |
1632 | buff[offset + 1] = 0; // padding | |
1633 | buff[offset + 2] = width >> 8; // width | |
1634 | buff[offset + 3] = width; | |
1635 | buff[offset + 4] = height >> 8; // height | |
1636 | buff[offset + 5] = height; | |
1637 | ||
1638 | buff[offset + 6] = 1; // number-of-screens | |
1639 | buff[offset + 7] = 0; // padding | |
1640 | ||
1641 | // screen array | |
1642 | buff[offset + 8] = id >> 24; // id | |
1643 | buff[offset + 9] = id >> 16; | |
1644 | buff[offset + 10] = id >> 8; | |
1645 | buff[offset + 11] = id; | |
1646 | buff[offset + 12] = 0; // x-position | |
1647 | buff[offset + 13] = 0; | |
1648 | buff[offset + 14] = 0; // y-position | |
1649 | buff[offset + 15] = 0; | |
1650 | buff[offset + 16] = width >> 8; // width | |
1651 | buff[offset + 17] = width; | |
1652 | buff[offset + 18] = height >> 8; // height | |
1653 | buff[offset + 19] = height; | |
1654 | buff[offset + 20] = flags >> 24; // flags | |
1655 | buff[offset + 21] = flags >> 16; | |
1656 | buff[offset + 22] = flags >> 8; | |
1657 | buff[offset + 23] = flags; | |
1658 | ||
1659 | sock._sQlen += 24; | |
1660 | sock.flush(); | |
1661 | }, | |
1662 | ||
1663 | clientFence: function (sock, flags, payload) { | |
1664 | var buff = sock._sQ; | |
1665 | var offset = sock._sQlen; | |
1666 | ||
1667 | buff[offset] = 248; // msg-type | |
1668 | ||
1669 | buff[offset + 1] = 0; // padding | |
1670 | buff[offset + 2] = 0; // padding | |
1671 | buff[offset + 3] = 0; // padding | |
1672 | ||
1673 | buff[offset + 4] = flags >> 24; // flags | |
1674 | buff[offset + 5] = flags >> 16; | |
1675 | buff[offset + 6] = flags >> 8; | |
1676 | buff[offset + 7] = flags; | |
1677 | ||
1678 | var n = payload.length; | |
1679 | ||
1680 | buff[offset + 8] = n; // length | |
1681 | ||
1682 | for (var i = 0; i < n; i++) { | |
1683 | buff[offset + 9 + i] = payload.charCodeAt(i); | |
1684 | } | |
a7a89626 | 1685 | |
6d6f0db0 SR |
1686 | sock._sQlen += 9 + n; |
1687 | sock.flush(); | |
1688 | }, | |
3df13262 | 1689 | |
6d6f0db0 SR |
1690 | enableContinuousUpdates: function (sock, enable, x, y, width, height) { |
1691 | var buff = sock._sQ; | |
1692 | var offset = sock._sQlen; | |
3df13262 | 1693 | |
6d6f0db0 SR |
1694 | buff[offset] = 150; // msg-type |
1695 | buff[offset + 1] = enable; // enable-flag | |
76a86ff5 | 1696 | |
6d6f0db0 SR |
1697 | buff[offset + 2] = x >> 8; // x |
1698 | buff[offset + 3] = x; | |
1699 | buff[offset + 4] = y >> 8; // y | |
1700 | buff[offset + 5] = y; | |
1701 | buff[offset + 6] = width >> 8; // width | |
1702 | buff[offset + 7] = width; | |
1703 | buff[offset + 8] = height >> 8; // height | |
1704 | buff[offset + 9] = height; | |
76a86ff5 | 1705 | |
6d6f0db0 SR |
1706 | sock._sQlen += 10; |
1707 | sock.flush(); | |
1708 | }, | |
76a86ff5 | 1709 | |
5a5f5ada | 1710 | pixelFormat: function (sock, depth, true_color) { |
6d6f0db0 SR |
1711 | var buff = sock._sQ; |
1712 | var offset = sock._sQlen; | |
ae116051 | 1713 | |
5a5f5ada PO |
1714 | var bpp, bits; |
1715 | ||
1716 | if (depth > 16) { | |
1717 | bpp = 32; | |
1718 | } else if (depth > 8) { | |
1719 | bpp = 16; | |
1720 | } else { | |
1721 | bpp = 8; | |
1722 | } | |
1723 | ||
1724 | bits = Math.floor(depth/3); | |
1725 | ||
6d6f0db0 | 1726 | buff[offset] = 0; // msg-type |
9ff86fb7 | 1727 | |
6d6f0db0 SR |
1728 | buff[offset + 1] = 0; // padding |
1729 | buff[offset + 2] = 0; // padding | |
1730 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1731 | |
5a5f5ada PO |
1732 | buff[offset + 4] = bpp; // bits-per-pixel |
1733 | buff[offset + 5] = depth; // depth | |
6d6f0db0 SR |
1734 | buff[offset + 6] = 0; // little-endian |
1735 | buff[offset + 7] = true_color ? 1 : 0; // true-color | |
9ff86fb7 | 1736 | |
6d6f0db0 | 1737 | buff[offset + 8] = 0; // red-max |
5a5f5ada | 1738 | buff[offset + 9] = (1 << bits) - 1; // red-max |
9ff86fb7 | 1739 | |
6d6f0db0 | 1740 | buff[offset + 10] = 0; // green-max |
5a5f5ada | 1741 | buff[offset + 11] = (1 << bits) - 1; // green-max |
9ff86fb7 | 1742 | |
6d6f0db0 | 1743 | buff[offset + 12] = 0; // blue-max |
5a5f5ada | 1744 | buff[offset + 13] = (1 << bits) - 1; // blue-max |
9ff86fb7 | 1745 | |
5a5f5ada PO |
1746 | buff[offset + 14] = bits * 2; // red-shift |
1747 | buff[offset + 15] = bits * 1; // green-shift | |
1748 | buff[offset + 16] = bits * 0; // blue-shift | |
9ff86fb7 | 1749 | |
6d6f0db0 SR |
1750 | buff[offset + 17] = 0; // padding |
1751 | buff[offset + 18] = 0; // padding | |
1752 | buff[offset + 19] = 0; // padding | |
9ff86fb7 | 1753 | |
6d6f0db0 SR |
1754 | sock._sQlen += 20; |
1755 | sock.flush(); | |
1756 | }, | |
9ff86fb7 | 1757 | |
49a81837 | 1758 | clientEncodings: function (sock, encodings) { |
6d6f0db0 SR |
1759 | var buff = sock._sQ; |
1760 | var offset = sock._sQlen; | |
b1dee947 | 1761 | |
6d6f0db0 SR |
1762 | buff[offset] = 2; // msg-type |
1763 | buff[offset + 1] = 0; // padding | |
b1dee947 | 1764 | |
49a81837 PO |
1765 | buff[offset + 2] = encodings.length >> 8; |
1766 | buff[offset + 3] = encodings.length; | |
9ff86fb7 | 1767 | |
49a81837 | 1768 | var i, j = offset + 4; |
6d6f0db0 | 1769 | for (i = 0; i < encodings.length; i++) { |
49a81837 PO |
1770 | var enc = encodings[i]; |
1771 | buff[j] = enc >> 24; | |
1772 | buff[j + 1] = enc >> 16; | |
1773 | buff[j + 2] = enc >> 8; | |
1774 | buff[j + 3] = enc; | |
a7a89626 | 1775 | |
49a81837 PO |
1776 | j += 4; |
1777 | } | |
a7a89626 | 1778 | |
6d6f0db0 SR |
1779 | sock._sQlen += j - offset; |
1780 | sock.flush(); | |
1781 | }, | |
a679a97d | 1782 | |
6d6f0db0 SR |
1783 | fbUpdateRequest: function (sock, incremental, x, y, w, h) { |
1784 | var buff = sock._sQ; | |
1785 | var offset = sock._sQlen; | |
9ff86fb7 | 1786 | |
6d6f0db0 SR |
1787 | if (typeof(x) === "undefined") { x = 0; } |
1788 | if (typeof(y) === "undefined") { y = 0; } | |
b1dee947 | 1789 | |
6d6f0db0 SR |
1790 | buff[offset] = 3; // msg-type |
1791 | buff[offset + 1] = incremental ? 1 : 0; | |
9ff86fb7 | 1792 | |
6d6f0db0 SR |
1793 | buff[offset + 2] = (x >> 8) & 0xFF; |
1794 | buff[offset + 3] = x & 0xFF; | |
9ff86fb7 | 1795 | |
6d6f0db0 SR |
1796 | buff[offset + 4] = (y >> 8) & 0xFF; |
1797 | buff[offset + 5] = y & 0xFF; | |
9ff86fb7 | 1798 | |
6d6f0db0 SR |
1799 | buff[offset + 6] = (w >> 8) & 0xFF; |
1800 | buff[offset + 7] = w & 0xFF; | |
9ff86fb7 | 1801 | |
6d6f0db0 SR |
1802 | buff[offset + 8] = (h >> 8) & 0xFF; |
1803 | buff[offset + 9] = h & 0xFF; | |
b1dee947 | 1804 | |
6d6f0db0 SR |
1805 | sock._sQlen += 10; |
1806 | sock.flush(); | |
85b35fc0 PO |
1807 | }, |
1808 | ||
1809 | xvpOp: function (sock, ver, op) { | |
1810 | var buff = sock._sQ; | |
1811 | var offset = sock._sQlen; | |
1812 | ||
1813 | buff[offset] = 250; // msg-type | |
1814 | buff[offset + 1] = 0; // padding | |
1815 | ||
1816 | buff[offset + 2] = ver; | |
1817 | buff[offset + 3] = op; | |
1818 | ||
1819 | sock._sQlen += 4; | |
1820 | sock.flush(); | |
1821 | }, | |
6d6f0db0 | 1822 | }; |
b1dee947 | 1823 | |
6d6f0db0 SR |
1824 | RFB.genDES = function (password, challenge) { |
1825 | var passwd = []; | |
1826 | for (var i = 0; i < password.length; i++) { | |
1827 | passwd.push(password.charCodeAt(i)); | |
1828 | } | |
1829 | return (new DES(passwd)).encrypt(challenge); | |
1830 | }; | |
b1dee947 | 1831 | |
6d6f0db0 SR |
1832 | RFB.encodingHandlers = { |
1833 | RAW: function () { | |
1834 | if (this._FBU.lines === 0) { | |
1835 | this._FBU.lines = this._FBU.height; | |
1836 | } | |
a7a89626 | 1837 | |
5a5f5ada PO |
1838 | var pixelSize = this._fb_depth == 8 ? 1 : 4; |
1839 | this._FBU.bytes = this._FBU.width * pixelSize; // at least a line | |
6d6f0db0 SR |
1840 | if (this._sock.rQwait("RAW", this._FBU.bytes)) { return false; } |
1841 | var cur_y = this._FBU.y + (this._FBU.height - this._FBU.lines); | |
1842 | var curr_height = Math.min(this._FBU.lines, | |
5a5f5ada PO |
1843 | Math.floor(this._sock.rQlen() / (this._FBU.width * pixelSize))); |
1844 | var data = this._sock.get_rQ(); | |
1845 | var index = this._sock.get_rQi(); | |
1846 | if (this._fb_depth == 8) { | |
1847 | var pixels = this._FBU.width * curr_height | |
1848 | var newdata = new Uint8Array(pixels * 4); | |
1849 | var i; | |
1850 | for (i = 0;i < pixels;i++) { | |
1851 | newdata[i * 4 + 0] = ((data[index + i] >> 0) & 0x3) * 255 / 3; | |
1852 | newdata[i * 4 + 1] = ((data[index + i] >> 2) & 0x3) * 255 / 3; | |
1853 | newdata[i * 4 + 2] = ((data[index + i] >> 4) & 0x3) * 255 / 3; | |
1854 | newdata[i * 4 + 4] = 0; | |
1855 | } | |
1856 | data = newdata; | |
1857 | index = 0; | |
1858 | } | |
6d6f0db0 | 1859 | this._display.blitImage(this._FBU.x, cur_y, this._FBU.width, |
5a5f5ada PO |
1860 | curr_height, data, index); |
1861 | this._sock.rQskipBytes(this._FBU.width * curr_height * pixelSize); | |
6d6f0db0 SR |
1862 | this._FBU.lines -= curr_height; |
1863 | ||
1864 | if (this._FBU.lines > 0) { | |
5a5f5ada | 1865 | this._FBU.bytes = this._FBU.width * pixelSize; // At least another line |
6d6f0db0 SR |
1866 | } else { |
1867 | this._FBU.rects--; | |
1868 | this._FBU.bytes = 0; | |
1869 | } | |
b1dee947 | 1870 | |
6d6f0db0 SR |
1871 | return true; |
1872 | }, | |
1873 | ||
1874 | COPYRECT: function () { | |
1875 | this._FBU.bytes = 4; | |
1876 | if (this._sock.rQwait("COPYRECT", 4)) { return false; } | |
1877 | this._display.copyImage(this._sock.rQshift16(), this._sock.rQshift16(), | |
1878 | this._FBU.x, this._FBU.y, this._FBU.width, | |
1879 | this._FBU.height); | |
1880 | ||
1881 | this._FBU.rects--; | |
1882 | this._FBU.bytes = 0; | |
1883 | return true; | |
1884 | }, | |
1885 | ||
1886 | RRE: function () { | |
1887 | var color; | |
1888 | if (this._FBU.subrects === 0) { | |
26586b9d PO |
1889 | this._FBU.bytes = 4 + 4; |
1890 | if (this._sock.rQwait("RRE", 4 + 4)) { return false; } | |
6d6f0db0 | 1891 | this._FBU.subrects = this._sock.rQshift32(); |
26586b9d | 1892 | color = this._sock.rQshiftBytes(4); // Background |
6d6f0db0 SR |
1893 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, color); |
1894 | } | |
b1dee947 | 1895 | |
26586b9d PO |
1896 | while (this._FBU.subrects > 0 && this._sock.rQlen() >= (4 + 8)) { |
1897 | color = this._sock.rQshiftBytes(4); | |
6d6f0db0 SR |
1898 | var x = this._sock.rQshift16(); |
1899 | var y = this._sock.rQshift16(); | |
1900 | var width = this._sock.rQshift16(); | |
1901 | var height = this._sock.rQshift16(); | |
1902 | this._display.fillRect(this._FBU.x + x, this._FBU.y + y, width, height, color); | |
1903 | this._FBU.subrects--; | |
1904 | } | |
f00193e0 | 1905 | |
6d6f0db0 SR |
1906 | if (this._FBU.subrects > 0) { |
1907 | var chunk = Math.min(this._rre_chunk_sz, this._FBU.subrects); | |
26586b9d | 1908 | this._FBU.bytes = (4 + 8) * chunk; |
6d6f0db0 | 1909 | } else { |
b1dee947 SR |
1910 | this._FBU.rects--; |
1911 | this._FBU.bytes = 0; | |
6d6f0db0 | 1912 | } |
b1dee947 | 1913 | |
6d6f0db0 SR |
1914 | return true; |
1915 | }, | |
b1dee947 | 1916 | |
6d6f0db0 SR |
1917 | HEXTILE: function () { |
1918 | var rQ = this._sock.get_rQ(); | |
1919 | var rQi = this._sock.get_rQi(); | |
b1dee947 | 1920 | |
6d6f0db0 SR |
1921 | if (this._FBU.tiles === 0) { |
1922 | this._FBU.tiles_x = Math.ceil(this._FBU.width / 16); | |
1923 | this._FBU.tiles_y = Math.ceil(this._FBU.height / 16); | |
1924 | this._FBU.total_tiles = this._FBU.tiles_x * this._FBU.tiles_y; | |
1925 | this._FBU.tiles = this._FBU.total_tiles; | |
1926 | } | |
b1dee947 | 1927 | |
6d6f0db0 SR |
1928 | while (this._FBU.tiles > 0) { |
1929 | this._FBU.bytes = 1; | |
1930 | if (this._sock.rQwait("HEXTILE subencoding", this._FBU.bytes)) { return false; } | |
1931 | var subencoding = rQ[rQi]; // Peek | |
1932 | if (subencoding > 30) { // Raw | |
1933 | this._fail("Unexpected server message", | |
1934 | "Illegal hextile subencoding: " + subencoding); | |
1935 | return false; | |
b1dee947 SR |
1936 | } |
1937 | ||
6d6f0db0 SR |
1938 | var subrects = 0; |
1939 | var curr_tile = this._FBU.total_tiles - this._FBU.tiles; | |
1940 | var tile_x = curr_tile % this._FBU.tiles_x; | |
1941 | var tile_y = Math.floor(curr_tile / this._FBU.tiles_x); | |
1942 | var x = this._FBU.x + tile_x * 16; | |
1943 | var y = this._FBU.y + tile_y * 16; | |
1944 | var w = Math.min(16, (this._FBU.x + this._FBU.width) - x); | |
1945 | var h = Math.min(16, (this._FBU.y + this._FBU.height) - y); | |
b1dee947 | 1946 | |
6d6f0db0 SR |
1947 | // Figure out how much we are expecting |
1948 | if (subencoding & 0x01) { // Raw | |
26586b9d | 1949 | this._FBU.bytes += w * h * 4; |
6d6f0db0 SR |
1950 | } else { |
1951 | if (subencoding & 0x02) { // Background | |
26586b9d | 1952 | this._FBU.bytes += 4; |
6d6f0db0 SR |
1953 | } |
1954 | if (subencoding & 0x04) { // Foreground | |
26586b9d | 1955 | this._FBU.bytes += 4; |
6d6f0db0 SR |
1956 | } |
1957 | if (subencoding & 0x08) { // AnySubrects | |
1958 | this._FBU.bytes++; // Since we aren't shifting it off | |
1959 | if (this._sock.rQwait("hextile subrects header", this._FBU.bytes)) { return false; } | |
1960 | subrects = rQ[rQi + this._FBU.bytes - 1]; // Peek | |
1961 | if (subencoding & 0x10) { // SubrectsColoured | |
26586b9d | 1962 | this._FBU.bytes += subrects * (4 + 2); |
6d6f0db0 SR |
1963 | } else { |
1964 | this._FBU.bytes += subrects * 2; | |
b1dee947 SR |
1965 | } |
1966 | } | |
6d6f0db0 | 1967 | } |
b1dee947 | 1968 | |
6d6f0db0 | 1969 | if (this._sock.rQwait("hextile", this._FBU.bytes)) { return false; } |
b1dee947 | 1970 | |
6d6f0db0 SR |
1971 | // We know the encoding and have a whole tile |
1972 | this._FBU.subencoding = rQ[rQi]; | |
1973 | rQi++; | |
1974 | if (this._FBU.subencoding === 0) { | |
1975 | if (this._FBU.lastsubencoding & 0x01) { | |
1976 | // Weird: ignore blanks are RAW | |
1977 | Log.Debug(" Ignoring blank after RAW"); | |
b1dee947 | 1978 | } else { |
6d6f0db0 SR |
1979 | this._display.fillRect(x, y, w, h, this._FBU.background); |
1980 | } | |
1981 | } else if (this._FBU.subencoding & 0x01) { // Raw | |
1982 | this._display.blitImage(x, y, w, h, rQ, rQi); | |
1983 | rQi += this._FBU.bytes - 1; | |
1984 | } else { | |
1985 | if (this._FBU.subencoding & 0x02) { // Background | |
26586b9d PO |
1986 | this._FBU.background = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
1987 | rQi += 4; | |
6d6f0db0 SR |
1988 | } |
1989 | if (this._FBU.subencoding & 0x04) { // Foreground | |
26586b9d PO |
1990 | this._FBU.foreground = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
1991 | rQi += 4; | |
6d6f0db0 | 1992 | } |
b1dee947 | 1993 | |
6d6f0db0 SR |
1994 | this._display.startTile(x, y, w, h, this._FBU.background); |
1995 | if (this._FBU.subencoding & 0x08) { // AnySubrects | |
1996 | subrects = rQ[rQi]; | |
1997 | rQi++; | |
b1dee947 | 1998 | |
6d6f0db0 SR |
1999 | for (var s = 0; s < subrects; s++) { |
2000 | var color; | |
2001 | if (this._FBU.subencoding & 0x10) { // SubrectsColoured | |
26586b9d PO |
2002 | color = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2003 | rQi += 4; | |
6d6f0db0 SR |
2004 | } else { |
2005 | color = this._FBU.foreground; | |
2006 | } | |
2007 | var xy = rQ[rQi]; | |
2008 | rQi++; | |
2009 | var sx = (xy >> 4); | |
2010 | var sy = (xy & 0x0f); | |
a7a89626 | 2011 | |
6d6f0db0 SR |
2012 | var wh = rQ[rQi]; |
2013 | rQi++; | |
2014 | var sw = (wh >> 4) + 1; | |
2015 | var sh = (wh & 0x0f) + 1; | |
a7a89626 | 2016 | |
6d6f0db0 | 2017 | this._display.subTile(sx, sy, sw, sh, color); |
b1dee947 | 2018 | } |
a7a89626 | 2019 | } |
6d6f0db0 | 2020 | this._display.finishTile(); |
a7a89626 | 2021 | } |
6d6f0db0 SR |
2022 | this._sock.set_rQi(rQi); |
2023 | this._FBU.lastsubencoding = this._FBU.subencoding; | |
2024 | this._FBU.bytes = 0; | |
2025 | this._FBU.tiles--; | |
2026 | } | |
d065cad9 | 2027 | |
6d6f0db0 SR |
2028 | if (this._FBU.tiles === 0) { |
2029 | this._FBU.rects--; | |
2030 | } | |
b1dee947 | 2031 | |
6d6f0db0 SR |
2032 | return true; |
2033 | }, | |
b1dee947 | 2034 | |
3e8b26ab | 2035 | TIGHT: function () { |
6d6f0db0 SR |
2036 | this._FBU.bytes = 1; // compression-control byte |
2037 | if (this._sock.rQwait("TIGHT compression-control", this._FBU.bytes)) { return false; } | |
2038 | ||
2039 | var checksum = function (data) { | |
2040 | var sum = 0; | |
2041 | for (var i = 0; i < data.length; i++) { | |
2042 | sum += data[i]; | |
2043 | if (sum > 65536) sum -= 65536; | |
2044 | } | |
2045 | return sum; | |
2046 | }; | |
2047 | ||
2048 | var resetStreams = 0; | |
2049 | var streamId = -1; | |
2050 | var decompress = function (data, expected) { | |
2051 | for (var i = 0; i < 4; i++) { | |
2052 | if ((resetStreams >> i) & 1) { | |
2053 | this._FBU.zlibs[i].reset(); | |
2054 | Log.Info("Reset zlib stream " + i); | |
b1dee947 | 2055 | } |
6d6f0db0 | 2056 | } |
de84e098 | 2057 | |
6d6f0db0 SR |
2058 | //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0); |
2059 | var uncompressed = this._FBU.zlibs[streamId].inflate(data, true, expected); | |
2060 | /*if (uncompressed.status !== 0) { | |
2061 | Log.Error("Invalid data in zlib stream"); | |
2062 | }*/ | |
2063 | ||
2064 | //return uncompressed.data; | |
2065 | return uncompressed; | |
2066 | }.bind(this); | |
2067 | ||
2068 | var indexedToRGBX2Color = function (data, palette, width, height) { | |
2069 | // Convert indexed (palette based) image data to RGB | |
2070 | // TODO: reduce number of calculations inside loop | |
2071 | var dest = this._destBuff; | |
2072 | var w = Math.floor((width + 7) / 8); | |
2073 | var w1 = Math.floor(width / 8); | |
2074 | ||
2075 | /*for (var y = 0; y < height; y++) { | |
2076 | var b, x, dp, sp; | |
2077 | var yoffset = y * width; | |
2078 | var ybitoffset = y * w; | |
2079 | var xoffset, targetbyte; | |
2080 | for (x = 0; x < w1; x++) { | |
d1800d09 SR |
2081 | xoffset = yoffset + x * 8; |
2082 | targetbyte = data[ybitoffset + x]; | |
6d6f0db0 | 2083 | for (b = 7; b >= 0; b--) { |
d1800d09 SR |
2084 | dp = (xoffset + 7 - b) * 3; |
2085 | sp = (targetbyte >> b & 1) * 3; | |
2086 | dest[dp] = palette[sp]; | |
2087 | dest[dp + 1] = palette[sp + 1]; | |
2088 | dest[dp + 2] = palette[sp + 2]; | |
2089 | } | |
6d6f0db0 SR |
2090 | } |
2091 | ||
2092 | xoffset = yoffset + x * 8; | |
2093 | targetbyte = data[ybitoffset + x]; | |
2094 | for (b = 7; b >= 8 - width % 8; b--) { | |
2095 | dp = (xoffset + 7 - b) * 3; | |
2096 | sp = (targetbyte >> b & 1) * 3; | |
2097 | dest[dp] = palette[sp]; | |
2098 | dest[dp + 1] = palette[sp + 1]; | |
2099 | dest[dp + 2] = palette[sp + 2]; | |
2100 | } | |
2101 | }*/ | |
d1800d09 | 2102 | |
6d6f0db0 SR |
2103 | for (var y = 0; y < height; y++) { |
2104 | var b, x, dp, sp; | |
2105 | for (x = 0; x < w1; x++) { | |
2106 | for (b = 7; b >= 0; b--) { | |
d1800d09 SR |
2107 | dp = (y * width + x * 8 + 7 - b) * 4; |
2108 | sp = (data[y * w + x] >> b & 1) * 3; | |
2109 | dest[dp] = palette[sp]; | |
2110 | dest[dp + 1] = palette[sp + 1]; | |
2111 | dest[dp + 2] = palette[sp + 2]; | |
2112 | dest[dp + 3] = 255; | |
e16ad2fd JM |
2113 | } |
2114 | } | |
b1dee947 | 2115 | |
6d6f0db0 SR |
2116 | for (b = 7; b >= 8 - width % 8; b--) { |
2117 | dp = (y * width + x * 8 + 7 - b) * 4; | |
2118 | sp = (data[y * w + x] >> b & 1) * 3; | |
2119 | dest[dp] = palette[sp]; | |
2120 | dest[dp + 1] = palette[sp + 1]; | |
2121 | dest[dp + 2] = palette[sp + 2]; | |
2122 | dest[dp + 3] = 255; | |
d1800d09 | 2123 | } |
6d6f0db0 | 2124 | } |
d1800d09 | 2125 | |
6d6f0db0 SR |
2126 | return dest; |
2127 | }.bind(this); | |
2128 | ||
2129 | var indexedToRGBX = function (data, palette, width, height) { | |
2130 | // Convert indexed (palette based) image data to RGB | |
2131 | var dest = this._destBuff; | |
2132 | var total = width * height * 4; | |
2133 | for (var i = 0, j = 0; i < total; i += 4, j++) { | |
2134 | var sp = data[j] * 3; | |
2135 | dest[i] = palette[sp]; | |
2136 | dest[i + 1] = palette[sp + 1]; | |
2137 | dest[i + 2] = palette[sp + 2]; | |
2138 | dest[i + 3] = 255; | |
2139 | } | |
2140 | ||
2141 | return dest; | |
2142 | }.bind(this); | |
2143 | ||
2144 | var rQi = this._sock.get_rQi(); | |
2145 | var rQ = this._sock.rQwhole(); | |
2146 | var cmode, data; | |
2147 | var cl_header, cl_data; | |
2148 | ||
2149 | var handlePalette = function () { | |
2150 | var numColors = rQ[rQi + 2] + 1; | |
26586b9d | 2151 | var paletteSize = numColors * 3; |
6d6f0db0 SR |
2152 | this._FBU.bytes += paletteSize; |
2153 | if (this._sock.rQwait("TIGHT palette " + cmode, this._FBU.bytes)) { return false; } | |
2154 | ||
2155 | var bpp = (numColors <= 2) ? 1 : 8; | |
2156 | var rowSize = Math.floor((this._FBU.width * bpp + 7) / 8); | |
2157 | var raw = false; | |
2158 | if (rowSize * this._FBU.height < 12) { | |
2159 | raw = true; | |
2160 | cl_header = 0; | |
2161 | cl_data = rowSize * this._FBU.height; | |
2162 | //clength = [0, rowSize * this._FBU.height]; | |
2163 | } else { | |
2164 | // begin inline getTightCLength (returning two-item arrays is bad for performance with GC) | |
2165 | var cl_offset = rQi + 3 + paletteSize; | |
2166 | cl_header = 1; | |
2167 | cl_data = 0; | |
2168 | cl_data += rQ[cl_offset] & 0x7f; | |
2169 | if (rQ[cl_offset] & 0x80) { | |
2170 | cl_header++; | |
2171 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2172 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2173 | cl_header++; |
6d6f0db0 | 2174 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2175 | } |
e16ad2fd | 2176 | } |
6d6f0db0 SR |
2177 | // end inline getTightCLength |
2178 | } | |
b1dee947 | 2179 | |
6d6f0db0 SR |
2180 | this._FBU.bytes += cl_header + cl_data; |
2181 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2182 | |
6d6f0db0 SR |
2183 | // Shift ctl, filter id, num colors, palette entries, and clength off |
2184 | this._sock.rQskipBytes(3); | |
2185 | //var palette = this._sock.rQshiftBytes(paletteSize); | |
2186 | this._sock.rQshiftTo(this._paletteBuff, paletteSize); | |
2187 | this._sock.rQskipBytes(cl_header); | |
b1dee947 | 2188 | |
6d6f0db0 SR |
2189 | if (raw) { |
2190 | data = this._sock.rQshiftBytes(cl_data); | |
2191 | } else { | |
2192 | data = decompress(this._sock.rQshiftBytes(cl_data), rowSize * this._FBU.height); | |
2193 | } | |
b1dee947 | 2194 | |
6d6f0db0 SR |
2195 | // Convert indexed (palette based) image data to RGB |
2196 | var rgbx; | |
2197 | if (numColors == 2) { | |
2198 | rgbx = indexedToRGBX2Color(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2199 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2200 | } else { | |
2201 | rgbx = indexedToRGBX(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2202 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2203 | } | |
b1dee947 | 2204 | |
b1dee947 | 2205 | |
6d6f0db0 SR |
2206 | return true; |
2207 | }.bind(this); | |
2208 | ||
2209 | var handleCopy = function () { | |
2210 | var raw = false; | |
26586b9d | 2211 | var uncompressedSize = this._FBU.width * this._FBU.height * 3; |
6d6f0db0 SR |
2212 | if (uncompressedSize < 12) { |
2213 | raw = true; | |
2214 | cl_header = 0; | |
2215 | cl_data = uncompressedSize; | |
2216 | } else { | |
2217 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2218 | var cl_offset = rQi + 1; | |
2219 | cl_header = 1; | |
2220 | cl_data = 0; | |
2221 | cl_data += rQ[cl_offset] & 0x7f; | |
2222 | if (rQ[cl_offset] & 0x80) { | |
2223 | cl_header++; | |
2224 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2225 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2226 | cl_header++; |
6d6f0db0 | 2227 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2228 | } |
b1dee947 | 2229 | } |
6d6f0db0 SR |
2230 | // end inline getTightCLength |
2231 | } | |
2232 | this._FBU.bytes = 1 + cl_header + cl_data; | |
2233 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2234 | |
6d6f0db0 SR |
2235 | // Shift ctl, clength off |
2236 | this._sock.rQshiftBytes(1 + cl_header); | |
b1dee947 | 2237 | |
6d6f0db0 SR |
2238 | if (raw) { |
2239 | data = this._sock.rQshiftBytes(cl_data); | |
2240 | } else { | |
2241 | data = decompress(this._sock.rQshiftBytes(cl_data), uncompressedSize); | |
2242 | } | |
b1dee947 | 2243 | |
6d6f0db0 | 2244 | this._display.blitRgbImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, data, 0, false); |
b1dee947 | 2245 | |
6d6f0db0 SR |
2246 | return true; |
2247 | }.bind(this); | |
b1dee947 | 2248 | |
6d6f0db0 | 2249 | var ctl = this._sock.rQpeek8(); |
b1dee947 | 2250 | |
6d6f0db0 SR |
2251 | // Keep tight reset bits |
2252 | resetStreams = ctl & 0xF; | |
b1dee947 | 2253 | |
6d6f0db0 SR |
2254 | // Figure out filter |
2255 | ctl = ctl >> 4; | |
2256 | streamId = ctl & 0x3; | |
b1dee947 | 2257 | |
6d6f0db0 SR |
2258 | if (ctl === 0x08) cmode = "fill"; |
2259 | else if (ctl === 0x09) cmode = "jpeg"; | |
2260 | else if (ctl === 0x0A) cmode = "png"; | |
2261 | else if (ctl & 0x04) cmode = "filter"; | |
2262 | else if (ctl < 0x04) cmode = "copy"; | |
2263 | else return this._fail("Unexpected server message", | |
2264 | "Illegal tight compression received, " + | |
2265 | "ctl: " + ctl); | |
b1dee947 | 2266 | |
6d6f0db0 | 2267 | switch (cmode) { |
26586b9d | 2268 | // fill use depth because TPIXELs drop the padding byte |
6d6f0db0 | 2269 | case "fill": // TPIXEL |
26586b9d | 2270 | this._FBU.bytes += 3; |
6d6f0db0 SR |
2271 | break; |
2272 | case "jpeg": // max clength | |
2273 | this._FBU.bytes += 3; | |
2274 | break; | |
2275 | case "png": // max clength | |
2276 | this._FBU.bytes += 3; | |
2277 | break; | |
2278 | case "filter": // filter id + num colors if palette | |
2279 | this._FBU.bytes += 2; | |
2280 | break; | |
2281 | case "copy": | |
2282 | break; | |
2283 | } | |
d065cad9 | 2284 | |
6d6f0db0 | 2285 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } |
b1dee947 | 2286 | |
6d6f0db0 SR |
2287 | // Determine FBU.bytes |
2288 | switch (cmode) { | |
2289 | case "fill": | |
2290 | // skip ctl byte | |
2291 | 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); | |
2292 | this._sock.rQskipBytes(4); | |
2293 | break; | |
2294 | case "png": | |
2295 | case "jpeg": | |
2296 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2297 | var cl_offset = rQi + 1; | |
2298 | cl_header = 1; | |
2299 | cl_data = 0; | |
2300 | cl_data += rQ[cl_offset] & 0x7f; | |
2301 | if (rQ[cl_offset] & 0x80) { | |
2302 | cl_header++; | |
2303 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2304 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2305 | cl_header++; |
6d6f0db0 | 2306 | cl_data += rQ[cl_offset + 2] << 14; |
b1dee947 | 2307 | } |
6d6f0db0 SR |
2308 | } |
2309 | // end inline getTightCLength | |
2310 | this._FBU.bytes = 1 + cl_header + cl_data; // ctl + clength size + jpeg-data | |
2311 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
798340b9 | 2312 | |
6d6f0db0 SR |
2313 | // We have everything, render it |
2314 | this._sock.rQskipBytes(1 + cl_header); // shift off clt + compact length | |
2315 | data = this._sock.rQshiftBytes(cl_data); | |
2316 | this._display.imageRect(this._FBU.x, this._FBU.y, "image/" + cmode, data); | |
2317 | break; | |
2318 | case "filter": | |
2319 | var filterId = rQ[rQi + 1]; | |
2320 | if (filterId === 1) { | |
2321 | if (!handlePalette()) { return false; } | |
b0ec6509 | 2322 | } else { |
6d6f0db0 SR |
2323 | // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter |
2324 | // Filter 2, Gradient is valid but not use if jpeg is enabled | |
2325 | this._fail("Unexpected server message", | |
2326 | "Unsupported tight subencoding received, " + | |
2327 | "filter: " + filterId); | |
b0ec6509 | 2328 | } |
6d6f0db0 SR |
2329 | break; |
2330 | case "copy": | |
2331 | if (!handleCopy()) { return false; } | |
2332 | break; | |
2333 | } | |
b0ec6509 | 2334 | |
6d6f0db0 SR |
2335 | |
2336 | this._FBU.bytes = 0; | |
2337 | this._FBU.rects--; | |
2338 | ||
2339 | return true; | |
2340 | }, | |
2341 | ||
6d6f0db0 SR |
2342 | last_rect: function () { |
2343 | this._FBU.rects = 0; | |
2344 | return true; | |
2345 | }, | |
2346 | ||
6d6f0db0 SR |
2347 | ExtendedDesktopSize: function () { |
2348 | this._FBU.bytes = 1; | |
2349 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2350 | ||
2351 | this._supportsSetDesktopSize = true; | |
832be262 PO |
2352 | this._setCapability("resize", true); |
2353 | ||
6d6f0db0 SR |
2354 | var number_of_screens = this._sock.rQpeek8(); |
2355 | ||
2356 | this._FBU.bytes = 4 + (number_of_screens * 16); | |
2357 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2358 | ||
2359 | this._sock.rQskipBytes(1); // number-of-screens | |
2360 | this._sock.rQskipBytes(3); // padding | |
2361 | ||
2362 | for (var i = 0; i < number_of_screens; i += 1) { | |
2363 | // Save the id and flags of the first screen | |
2364 | if (i === 0) { | |
2365 | this._screen_id = this._sock.rQshiftBytes(4); // id | |
2366 | this._sock.rQskipBytes(2); // x-position | |
2367 | this._sock.rQskipBytes(2); // y-position | |
2368 | this._sock.rQskipBytes(2); // width | |
2369 | this._sock.rQskipBytes(2); // height | |
2370 | this._screen_flags = this._sock.rQshiftBytes(4); // flags | |
2371 | } else { | |
2372 | this._sock.rQskipBytes(16); | |
798340b9 | 2373 | } |
6d6f0db0 | 2374 | } |
b0ec6509 | 2375 | |
6d6f0db0 SR |
2376 | /* |
2377 | * The x-position indicates the reason for the change: | |
2378 | * | |
2379 | * 0 - server resized on its own | |
2380 | * 1 - this client requested the resize | |
2381 | * 2 - another client requested the resize | |
2382 | */ | |
b0ec6509 | 2383 | |
6d6f0db0 SR |
2384 | // We need to handle errors when we requested the resize. |
2385 | if (this._FBU.x === 1 && this._FBU.y !== 0) { | |
2386 | var msg = ""; | |
2387 | // The y-position indicates the status code from the server | |
2388 | switch (this._FBU.y) { | |
2389 | case 1: | |
2390 | msg = "Resize is administratively prohibited"; | |
2391 | break; | |
2392 | case 2: | |
2393 | msg = "Out of resources"; | |
2394 | break; | |
2395 | case 3: | |
2396 | msg = "Invalid screen layout"; | |
2397 | break; | |
2398 | default: | |
2399 | msg = "Unknown reason"; | |
2400 | break; | |
2401 | } | |
2402 | this._notification("Server did not accept the resize request: " | |
2403 | + msg, 'normal'); | |
910fd3af PO |
2404 | } else { |
2405 | this._resize(this._FBU.width, this._FBU.height); | |
6d6f0db0 | 2406 | } |
b1dee947 | 2407 | |
91d5c625 PO |
2408 | this._FBU.bytes = 0; |
2409 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2410 | return true; |
2411 | }, | |
b1dee947 | 2412 | |
6d6f0db0 | 2413 | DesktopSize: function () { |
91d5c625 PO |
2414 | this._resize(this._FBU.width, this._FBU.height); |
2415 | this._FBU.bytes = 0; | |
2416 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2417 | return true; |
2418 | }, | |
8db09746 | 2419 | |
6d6f0db0 SR |
2420 | Cursor: function () { |
2421 | Log.Debug(">> set_cursor"); | |
2422 | var x = this._FBU.x; // hotspot-x | |
2423 | var y = this._FBU.y; // hotspot-y | |
2424 | var w = this._FBU.width; | |
2425 | var h = this._FBU.height; | |
8db09746 | 2426 | |
26586b9d | 2427 | var pixelslength = w * h * 4; |
6d6f0db0 | 2428 | var masklength = Math.floor((w + 7) / 8) * h; |
a7a89626 | 2429 | |
6d6f0db0 SR |
2430 | this._FBU.bytes = pixelslength + masklength; |
2431 | if (this._sock.rQwait("cursor encoding", this._FBU.bytes)) { return false; } | |
b1dee947 | 2432 | |
6d6f0db0 SR |
2433 | this._display.changeCursor(this._sock.rQshiftBytes(pixelslength), |
2434 | this._sock.rQshiftBytes(masklength), | |
2435 | x, y, w, h); | |
b1dee947 | 2436 | |
6d6f0db0 SR |
2437 | this._FBU.bytes = 0; |
2438 | this._FBU.rects--; | |
8f06673a | 2439 | |
6d6f0db0 SR |
2440 | Log.Debug("<< set_cursor"); |
2441 | return true; | |
2442 | }, | |
25e4928f | 2443 | |
6d6f0db0 SR |
2444 | QEMUExtendedKeyEvent: function () { |
2445 | this._FBU.rects--; | |
25e4928f | 2446 | |
2bf4cf5a PO |
2447 | // Old Safari doesn't support creating keyboard events |
2448 | try { | |
2449 | var keyboardEvent = document.createEvent("keyboardEvent"); | |
2450 | if (keyboardEvent.code !== undefined) { | |
2451 | this._qemuExtKeyEventSupported = true; | |
2452 | } | |
2453 | } catch (err) { | |
058be785 | 2454 | } |
6d6f0db0 | 2455 | }, |
6d6f0db0 | 2456 | }; |