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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 | |
3ae0bb09 | 31 | export default function RFB(defaults) { |
b1dee947 | 32 | "use strict"; |
ae510306 SR |
33 | if (!defaults) { |
34 | defaults = {}; | |
35 | } | |
36 | ||
37 | this._rfb_host = ''; | |
38 | this._rfb_port = 5900; | |
39 | this._rfb_password = ''; | |
40 | this._rfb_path = ''; | |
41 | ||
3bb12056 | 42 | this._rfb_connection_state = ''; |
c00ee156 | 43 | this._rfb_init_state = ''; |
ae510306 SR |
44 | this._rfb_version = 0; |
45 | this._rfb_max_version = 3.8; | |
46 | this._rfb_auth_scheme = ''; | |
3bb12056 | 47 | this._rfb_disconnect_reason = ""; |
ae510306 SR |
48 | |
49 | this._rfb_tightvnc = false; | |
50 | this._rfb_xvp_ver = 0; | |
51 | ||
ae510306 | 52 | this._encHandlers = {}; |
ae510306 SR |
53 | this._encStats = {}; |
54 | ||
55 | this._sock = null; // Websock object | |
56 | this._display = null; // Display object | |
d9ca5e5b | 57 | this._flushing = false; // Display flushing state |
ae510306 SR |
58 | this._keyboard = null; // Keyboard input handler object |
59 | this._mouse = null; // Mouse input handler object | |
60 | this._disconnTimer = null; // disconnection timer | |
ae510306 SR |
61 | |
62 | this._supportsFence = false; | |
63 | ||
64 | this._supportsContinuousUpdates = false; | |
65 | this._enabledContinuousUpdates = false; | |
66 | ||
67 | // Frame buffer update state | |
68 | this._FBU = { | |
69 | rects: 0, | |
70 | subrects: 0, // RRE | |
71 | lines: 0, // RAW | |
72 | tiles: 0, // HEXTILE | |
73 | bytes: 0, | |
74 | x: 0, | |
75 | y: 0, | |
76 | width: 0, | |
77 | height: 0, | |
78 | encoding: 0, | |
79 | subencoding: -1, | |
80 | background: null, | |
81 | zlib: [] // TIGHT zlib streams | |
82 | }; | |
5210330a | 83 | |
ae510306 SR |
84 | this._fb_width = 0; |
85 | this._fb_height = 0; | |
86 | this._fb_name = ""; | |
b1dee947 | 87 | |
ae510306 SR |
88 | this._destBuff = null; |
89 | this._paletteBuff = new Uint8Array(1024); // 256 * 4 (max palette size * max bytes-per-pixel) | |
b1dee947 | 90 | |
ae510306 | 91 | this._rre_chunk_sz = 100; |
b1dee947 | 92 | |
ae510306 SR |
93 | this._timing = { |
94 | last_fbu: 0, | |
95 | fbu_total: 0, | |
96 | fbu_total_cnt: 0, | |
97 | full_fbu_total: 0, | |
98 | full_fbu_cnt: 0, | |
b1dee947 | 99 | |
ae510306 SR |
100 | fbu_rt_start: 0, |
101 | fbu_rt_total: 0, | |
102 | fbu_rt_cnt: 0, | |
103 | pixels: 0 | |
104 | }; | |
105 | ||
106 | this._supportsSetDesktopSize = false; | |
107 | this._screen_id = 0; | |
108 | this._screen_flags = 0; | |
109 | ||
110 | // Mouse state | |
111 | this._mouse_buttonMask = 0; | |
112 | this._mouse_arr = []; | |
113 | this._viewportDragging = false; | |
114 | this._viewportDragPos = {}; | |
115 | this._viewportHasMoved = false; | |
116 | ||
117 | // QEMU Extended Key Event support - default to false | |
118 | this._qemuExtKeyEventSupported = false; | |
119 | ||
120 | // set the default value on user-facing properties | |
6d6f0db0 | 121 | set_defaults(this, defaults, { |
ae510306 | 122 | 'target': 'null', // VNC display rendering Canvas object |
ae510306 | 123 | 'encrypt': false, // Use TLS/SSL/wss encryption |
ae510306 SR |
124 | 'local_cursor': false, // Request locally rendered cursor |
125 | 'shared': true, // Request shared mode | |
126 | 'view_only': false, // Disable client mouse/keyboard | |
127 | 'xvp_password_sep': '@', // Separator for XVP password fields | |
128 | 'disconnectTimeout': 3, // Time (s) to wait for disconnection | |
129 | 'wsProtocols': ['binary'], // Protocols to use in the WebSocket connection | |
130 | 'repeaterID': '', // [UltraVNC] RepeaterID to connect to | |
131 | 'viewportDrag': false, // Move the viewport on mouse drags | |
132 | ||
133 | // Callback functions | |
3bb12056 | 134 | 'onUpdateState': function () { }, // onUpdateState(rfb, state, oldstate): connection state change |
a7127fee | 135 | 'onNotification': function () { }, // onNotification(rfb, msg, level, options): notification for UI |
3bb12056 | 136 | 'onDisconnected': function () { }, // onDisconnected(rfb, reason): disconnection finished |
7d714b15 | 137 | 'onPasswordRequired': function () { }, // onPasswordRequired(rfb, msg): VNC password is required |
ae510306 SR |
138 | 'onClipboard': function () { }, // onClipboard(rfb, text): RFB clipboard contents received |
139 | 'onBell': function () { }, // onBell(rfb): RFB Bell message received | |
c7c6cb19 PO |
140 | 'onFBUReceive': function () { }, // onFBUReceive(rfb, rect): RFB FBU rect received but not yet processed |
141 | 'onFBUComplete': function () { }, // onFBUComplete(rfb): RFB FBU received and processed | |
ae510306 SR |
142 | 'onFBResize': function () { }, // onFBResize(rfb, width, height): frame buffer resized |
143 | 'onDesktopName': function () { }, // onDesktopName(rfb, name): desktop name received | |
144 | 'onXvpInit': function () { } // onXvpInit(version): XVP extensions active for this connection | |
145 | }); | |
146 | ||
147 | // main setup | |
6d6f0db0 | 148 | Log.Debug(">> RFB.constructor"); |
ae510306 | 149 | |
45808617 PO |
150 | // Target canvas must be able to have focus |
151 | if (!this._target.hasAttribute('tabindex')) { | |
152 | this._target.tabIndex = -1; | |
153 | } | |
154 | ||
ae510306 | 155 | // populate encHandlers with bound versions |
cd230363 SM |
156 | this._encHandlers[encodings.encodingRaw] = RFB.encodingHandlers.RAW.bind(this); |
157 | this._encHandlers[encodings.encodingCopyRect] = RFB.encodingHandlers.COPYRECT.bind(this); | |
158 | this._encHandlers[encodings.encodingRRE] = RFB.encodingHandlers.RRE.bind(this); | |
159 | this._encHandlers[encodings.encodingHextile] = RFB.encodingHandlers.HEXTILE.bind(this); | |
160 | this._encHandlers[encodings.encodingTight] = RFB.encodingHandlers.TIGHT.bind(this); | |
161 | ||
162 | this._encHandlers[encodings.pseudoEncodingDesktopSize] = RFB.encodingHandlers.DesktopSize.bind(this); | |
163 | this._encHandlers[encodings.pseudoEncodingLastRect] = RFB.encodingHandlers.last_rect.bind(this); | |
164 | this._encHandlers[encodings.pseudoEncodingCursor] = RFB.encodingHandlers.Cursor.bind(this); | |
165 | this._encHandlers[encodings.pseudoEncodingQEMUExtendedKeyEvent] = RFB.encodingHandlers.QEMUExtendedKeyEvent.bind(this); | |
166 | this._encHandlers[encodings.pseudoEncodingExtendedDesktopSize] = RFB.encodingHandlers.ExtendedDesktopSize.bind(this); | |
ae510306 SR |
167 | |
168 | // NB: nothing that needs explicit teardown should be done | |
169 | // before this point, since this can throw an exception | |
170 | try { | |
d9ca5e5b PO |
171 | this._display = new Display({target: this._target, |
172 | onFlush: this._onFlush.bind(this)}); | |
ae510306 | 173 | } catch (exc) { |
6d6f0db0 | 174 | Log.Error("Display exception: " + exc); |
ae510306 SR |
175 | throw exc; |
176 | } | |
177 | ||
2afda544 | 178 | this._keyboard = new Keyboard({target: this._target, |
d0703d1b | 179 | onKeyEvent: this._handleKeyEvent.bind(this)}); |
ae510306 SR |
180 | |
181 | this._mouse = new Mouse({target: this._target, | |
182 | onMouseButton: this._handleMouseButton.bind(this), | |
9e6f71cb | 183 | onMouseMove: this._handleMouseMove.bind(this)}); |
ae510306 SR |
184 | |
185 | this._sock = new Websock(); | |
186 | this._sock.on('message', this._handle_message.bind(this)); | |
187 | this._sock.on('open', function () { | |
c2a4d3ef | 188 | if ((this._rfb_connection_state === 'connecting') && |
c00ee156 SM |
189 | (this._rfb_init_state === '')) { |
190 | this._rfb_init_state = 'ProtocolVersion'; | |
6d6f0db0 | 191 | Log.Debug("Starting VNC handshake"); |
ae510306 | 192 | } else { |
67cd2072 | 193 | this._fail("Unexpected server connection"); |
ae510306 SR |
194 | } |
195 | }.bind(this)); | |
196 | this._sock.on('close', function (e) { | |
6d6f0db0 | 197 | Log.Warn("WebSocket on-close event"); |
ae510306 SR |
198 | var msg = ""; |
199 | if (e.code) { | |
200 | msg = " (code: " + e.code; | |
201 | if (e.reason) { | |
202 | msg += ", reason: " + e.reason; | |
b1dee947 | 203 | } |
ae510306 SR |
204 | msg += ")"; |
205 | } | |
c00ee156 | 206 | switch (this._rfb_connection_state) { |
c2a4d3ef | 207 | case 'disconnecting': |
3bb12056 | 208 | this._updateConnectionState('disconnected'); |
c00ee156 | 209 | break; |
c2a4d3ef | 210 | case 'connecting': |
67cd2072 | 211 | this._fail('Failed to connect to server', msg); |
c00ee156 | 212 | break; |
b45905ab SM |
213 | case 'connected': |
214 | // Handle disconnects that were initiated server-side | |
215 | this._updateConnectionState('disconnecting'); | |
216 | this._updateConnectionState('disconnected'); | |
217 | break; | |
c00ee156 | 218 | case 'disconnected': |
67cd2072 SM |
219 | this._fail("Unexpected server disconnect", |
220 | "Already disconnected: " + msg); | |
c00ee156 SM |
221 | break; |
222 | default: | |
67cd2072 SM |
223 | this._fail("Unexpected server disconnect", |
224 | "Not in any state yet: " + msg); | |
c00ee156 | 225 | break; |
a679a97d | 226 | } |
ae510306 SR |
227 | this._sock.off('close'); |
228 | }.bind(this)); | |
229 | this._sock.on('error', function (e) { | |
6d6f0db0 | 230 | Log.Warn("WebSocket on-error event"); |
ae510306 | 231 | }); |
8db09746 | 232 | |
ae510306 | 233 | this._init_vars(); |
6c145147 | 234 | this._cleanup(); |
ae510306 SR |
235 | |
236 | var rmode = this._display.get_render_mode(); | |
6d6f0db0 | 237 | Log.Info("Using native WebSockets, render mode: " + rmode); |
ae510306 | 238 | |
6d6f0db0 | 239 | Log.Debug("<< RFB.constructor"); |
ae510306 | 240 | }; |
a7a89626 | 241 | |
6d6f0db0 SR |
242 | RFB.prototype = { |
243 | // Public methods | |
244 | connect: function (host, port, password, path) { | |
245 | this._rfb_host = host; | |
246 | this._rfb_port = port; | |
247 | this._rfb_password = (password !== undefined) ? password : ""; | |
248 | this._rfb_path = (path !== undefined) ? path : ""; | |
249 | ||
8290d3f2 | 250 | if (!this._rfb_host) { |
6d6f0db0 | 251 | return this._fail( |
8290d3f2 | 252 | _("Must set host")); |
6d6f0db0 | 253 | } |
a7a89626 | 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 | ||
267 | sendPassword: function (passwd) { | |
268 | this._rfb_password = passwd; | |
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 | ||
286 | xvpOp: function (ver, op) { | |
287 | if (this._rfb_xvp_ver < ver) { return false; } | |
288 | Log.Info("Sending XVP operation " + op + " (version " + ver + ")"); | |
289 | this._sock.send_string("\xFA\x00" + String.fromCharCode(ver) + String.fromCharCode(op)); | |
290 | return true; | |
291 | }, | |
292 | ||
293 | xvpShutdown: function () { | |
294 | return this.xvpOp(1, 2); | |
295 | }, | |
296 | ||
297 | xvpReboot: function () { | |
298 | return this.xvpOp(1, 3); | |
299 | }, | |
300 | ||
301 | xvpReset: function () { | |
302 | return this.xvpOp(1, 4); | |
303 | }, | |
304 | ||
305 | // Send a key press. If 'down' is not specified then send a down key | |
306 | // followed by an up key. | |
94f5cf05 | 307 | sendKey: function (keysym, code, down) { |
6d6f0db0 | 308 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } |
94f5cf05 PO |
309 | |
310 | if (down === undefined) { | |
311 | this.sendKey(keysym, code, true); | |
312 | this.sendKey(keysym, code, false); | |
313 | return true; | |
314 | } | |
315 | ||
be70fe0a | 316 | var scancode = XtScancode[code]; |
94f5cf05 | 317 | |
be70fe0a | 318 | if (this._qemuExtKeyEventSupported && scancode) { |
459ed008 PO |
319 | // 0 is NoSymbol |
320 | keysym = keysym || 0; | |
321 | ||
94f5cf05 PO |
322 | Log.Info("Sending key (" + (down ? "down" : "up") + "): keysym " + keysym + ", scancode " + scancode); |
323 | ||
324 | RFB.messages.QEMUExtendedKeyEvent(this._sock, keysym, down, scancode); | |
325 | } else { | |
459ed008 PO |
326 | if (!keysym) { |
327 | return false; | |
328 | } | |
6d6f0db0 SR |
329 | Log.Info("Sending keysym (" + (down ? "down" : "up") + "): " + keysym); |
330 | RFB.messages.keyEvent(this._sock, keysym, down ? 1 : 0); | |
6d6f0db0 | 331 | } |
94f5cf05 | 332 | |
6d6f0db0 SR |
333 | return true; |
334 | }, | |
335 | ||
336 | clipboardPasteFrom: function (text) { | |
337 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return; } | |
338 | RFB.messages.clientCutText(this._sock, text); | |
339 | }, | |
340 | ||
341 | // Requests a change of remote desktop size. This message is an extension | |
342 | // and may only be sent if we have received an ExtendedDesktopSize message | |
343 | requestDesktopSize: function (width, height) { | |
344 | if (this._rfb_connection_state !== 'connected' || | |
345 | this._view_only) { | |
346 | return false; | |
347 | } | |
e3efeb32 | 348 | |
6d6f0db0 SR |
349 | if (this._supportsSetDesktopSize) { |
350 | RFB.messages.setDesktopSize(this._sock, width, height, | |
351 | this._screen_id, this._screen_flags); | |
352 | this._sock.flush(); | |
4e0c36dd | 353 | return true; |
6d6f0db0 SR |
354 | } else { |
355 | return false; | |
356 | } | |
357 | }, | |
b1dee947 | 358 | |
b1dee947 | 359 | |
6d6f0db0 | 360 | // Private methods |
b0ec6509 | 361 | |
6d6f0db0 SR |
362 | _connect: function () { |
363 | Log.Debug(">> RFB.connect"); | |
364 | this._init_vars(); | |
b0ec6509 | 365 | |
6d6f0db0 SR |
366 | var uri; |
367 | if (typeof UsingSocketIO !== 'undefined') { | |
368 | uri = 'http'; | |
369 | } else { | |
370 | uri = this._encrypt ? 'wss' : 'ws'; | |
371 | } | |
b1dee947 | 372 | |
8290d3f2 PO |
373 | uri += '://' + this._rfb_host; |
374 | if(this._rfb_port) { | |
375 | uri += ':' + this._rfb_port; | |
376 | } | |
377 | uri += '/' + this._rfb_path; | |
a7a89626 | 378 | |
6d6f0db0 | 379 | Log.Info("connecting to " + uri); |
b1dee947 | 380 | |
6d6f0db0 SR |
381 | try { |
382 | // WebSocket.onopen transitions to the RFB init states | |
383 | this._sock.open(uri, this._wsProtocols); | |
384 | } catch (e) { | |
385 | if (e.name === 'SyntaxError') { | |
386 | this._fail("Invalid host or port value given", e); | |
b1dee947 | 387 | } else { |
6d6f0db0 | 388 | this._fail("Error while connecting", e); |
159ad55d | 389 | } |
6d6f0db0 | 390 | } |
e3efeb32 | 391 | |
2afda544 PO |
392 | // Always grab focus on some kind of click event |
393 | this._target.addEventListener("mousedown", this._focusCanvas); | |
394 | this._target.addEventListener("touchstart", this._focusCanvas); | |
395 | ||
6d6f0db0 SR |
396 | Log.Debug("<< RFB.connect"); |
397 | }, | |
398 | ||
399 | _disconnect: function () { | |
400 | Log.Debug(">> RFB.disconnect"); | |
2afda544 PO |
401 | this._target.removeEventListener("mousedown", this._focusCanvas); |
402 | this._target.removeEventListener("touchstart", this._focusCanvas); | |
6d6f0db0 SR |
403 | this._cleanup(); |
404 | this._sock.close(); | |
405 | this._print_stats(); | |
406 | Log.Debug("<< RFB.disconnect"); | |
407 | }, | |
408 | ||
409 | _init_vars: function () { | |
410 | // reset state | |
411 | this._FBU.rects = 0; | |
412 | this._FBU.subrects = 0; // RRE and HEXTILE | |
413 | this._FBU.lines = 0; // RAW | |
414 | this._FBU.tiles = 0; // HEXTILE | |
415 | this._FBU.zlibs = []; // TIGHT zlib encoders | |
416 | this._mouse_buttonMask = 0; | |
417 | this._mouse_arr = []; | |
418 | this._rfb_tightvnc = false; | |
419 | ||
420 | // Clear the per connection encoding stats | |
c3386227 PO |
421 | var stats = this._encStats; |
422 | Object.keys(stats).forEach(function (key) { | |
423 | stats[key][0] = 0; | |
424 | }); | |
a7a89626 | 425 | |
c3386227 | 426 | var i; |
6d6f0db0 SR |
427 | for (i = 0; i < 4; i++) { |
428 | this._FBU.zlibs[i] = new Inflator(); | |
429 | } | |
430 | }, | |
a7a89626 | 431 | |
6d6f0db0 | 432 | _print_stats: function () { |
c3386227 PO |
433 | var stats = this._encStats; |
434 | ||
6d6f0db0 | 435 | Log.Info("Encoding stats for this connection:"); |
c3386227 PO |
436 | Object.keys(stats).forEach(function (key) { |
437 | var s = stats[key]; | |
6d6f0db0 | 438 | if (s[0] + s[1] > 0) { |
c3386227 | 439 | Log.Info(" " + encodingName(key) + ": " + s[0] + " rects"); |
b1dee947 | 440 | } |
c3386227 | 441 | }); |
a7a89626 | 442 | |
6d6f0db0 | 443 | Log.Info("Encoding stats since page load:"); |
c3386227 PO |
444 | Object.keys(stats).forEach(function (key) { |
445 | var s = stats[key]; | |
446 | Log.Info(" " + encodingName(key) + ": " + s[1] + " rects"); | |
447 | }); | |
6d6f0db0 SR |
448 | }, |
449 | ||
450 | _cleanup: function () { | |
451 | if (!this._view_only) { this._keyboard.ungrab(); } | |
452 | if (!this._view_only) { this._mouse.ungrab(); } | |
453 | this._display.defaultCursor(); | |
454 | if (Log.get_logging() !== 'debug') { | |
455 | // Show noVNC logo on load and when disconnected, unless in | |
456 | // debug mode | |
457 | this._display.clear(); | |
458 | } | |
459 | }, | |
460 | ||
2afda544 PO |
461 | // Event handler for canvas so this points to the canvas element |
462 | _focusCanvas: function(event) { | |
463 | // Respect earlier handlers' request to not do side-effects | |
464 | if (!event.defaultPrevented) | |
465 | this.focus(); | |
466 | }, | |
467 | ||
6d6f0db0 SR |
468 | /* |
469 | * Connection states: | |
470 | * connecting | |
471 | * connected | |
472 | * disconnecting | |
473 | * disconnected - permanent state | |
474 | */ | |
475 | _updateConnectionState: function (state) { | |
476 | var oldstate = this._rfb_connection_state; | |
477 | ||
478 | if (state === oldstate) { | |
479 | Log.Debug("Already in state '" + state + "', ignoring"); | |
480 | return; | |
481 | } | |
482 | ||
483 | // The 'disconnected' state is permanent for each RFB object | |
484 | if (oldstate === 'disconnected') { | |
485 | Log.Error("Tried changing state of a disconnected RFB object"); | |
486 | return; | |
487 | } | |
488 | ||
489 | // Ensure proper transitions before doing anything | |
490 | switch (state) { | |
491 | case 'connected': | |
492 | if (oldstate !== 'connecting') { | |
493 | Log.Error("Bad transition to connected state, " + | |
494 | "previous connection state: " + oldstate); | |
495 | return; | |
b1dee947 | 496 | } |
6d6f0db0 | 497 | break; |
a7a89626 | 498 | |
6d6f0db0 SR |
499 | case 'disconnected': |
500 | if (oldstate !== 'disconnecting') { | |
501 | Log.Error("Bad transition to disconnected state, " + | |
502 | "previous connection state: " + oldstate); | |
503 | return; | |
504 | } | |
505 | break; | |
a7a89626 | 506 | |
6d6f0db0 SR |
507 | case 'connecting': |
508 | if (oldstate !== '') { | |
509 | Log.Error("Bad transition to connecting state, " + | |
510 | "previous connection state: " + oldstate); | |
511 | return; | |
512 | } | |
513 | break; | |
b1dee947 | 514 | |
6d6f0db0 SR |
515 | case 'disconnecting': |
516 | if (oldstate !== 'connected' && oldstate !== 'connecting') { | |
517 | Log.Error("Bad transition to disconnecting state, " + | |
518 | "previous connection state: " + oldstate); | |
519 | return; | |
520 | } | |
521 | break; | |
a679a97d | 522 | |
6d6f0db0 SR |
523 | default: |
524 | Log.Error("Unknown connection state: " + state); | |
3bb12056 | 525 | return; |
6d6f0db0 | 526 | } |
b1dee947 | 527 | |
6d6f0db0 | 528 | // State change actions |
3bb12056 | 529 | |
6d6f0db0 SR |
530 | this._rfb_connection_state = state; |
531 | this._onUpdateState(this, state, oldstate); | |
b2e961d4 | 532 | |
6d6f0db0 SR |
533 | var smsg = "New state '" + state + "', was '" + oldstate + "'."; |
534 | Log.Debug(smsg); | |
b2e961d4 | 535 | |
6d6f0db0 SR |
536 | if (this._disconnTimer && state !== 'disconnecting') { |
537 | Log.Debug("Clearing disconnect timer"); | |
538 | clearTimeout(this._disconnTimer); | |
539 | this._disconnTimer = null; | |
3bb12056 | 540 | |
6d6f0db0 SR |
541 | // make sure we don't get a double event |
542 | this._sock.off('close'); | |
543 | } | |
b2e961d4 | 544 | |
6d6f0db0 SR |
545 | switch (state) { |
546 | case 'disconnected': | |
547 | // Call onDisconnected callback after onUpdateState since | |
548 | // we don't know if the UI only displays the latest message | |
549 | if (this._rfb_disconnect_reason !== "") { | |
550 | this._onDisconnected(this, this._rfb_disconnect_reason); | |
551 | } else { | |
552 | // No reason means clean disconnect | |
553 | this._onDisconnected(this); | |
554 | } | |
555 | break; | |
b2e961d4 | 556 | |
6d6f0db0 SR |
557 | case 'connecting': |
558 | this._connect(); | |
559 | break; | |
b2e961d4 | 560 | |
6d6f0db0 SR |
561 | case 'disconnecting': |
562 | this._disconnect(); | |
b2e961d4 | 563 | |
6d6f0db0 SR |
564 | this._disconnTimer = setTimeout(function () { |
565 | this._rfb_disconnect_reason = _("Disconnect timeout"); | |
566 | this._updateConnectionState('disconnected'); | |
567 | }.bind(this), this._disconnectTimeout * 1000); | |
568 | break; | |
569 | } | |
570 | }, | |
571 | ||
572 | /* Print errors and disconnect | |
573 | * | |
574 | * The optional parameter 'details' is used for information that | |
575 | * should be logged but not sent to the user interface. | |
576 | */ | |
577 | _fail: function (msg, details) { | |
578 | var fullmsg = msg; | |
579 | if (typeof details !== 'undefined') { | |
580 | fullmsg = msg + " (" + details + ")"; | |
581 | } | |
582 | switch (this._rfb_connection_state) { | |
583 | case 'disconnecting': | |
584 | Log.Error("Failed when disconnecting: " + fullmsg); | |
585 | break; | |
586 | case 'connected': | |
587 | Log.Error("Failed while connected: " + fullmsg); | |
588 | break; | |
589 | case 'connecting': | |
590 | Log.Error("Failed when connecting: " + fullmsg); | |
591 | break; | |
592 | default: | |
593 | Log.Error("RFB failure: " + fullmsg); | |
594 | break; | |
595 | } | |
596 | this._rfb_disconnect_reason = msg; //This is sent to the UI | |
597 | ||
598 | // Transition to disconnected without waiting for socket to close | |
599 | this._updateConnectionState('disconnecting'); | |
600 | this._updateConnectionState('disconnected'); | |
601 | ||
602 | return false; | |
603 | }, | |
604 | ||
605 | /* | |
606 | * Send a notification to the UI. Valid levels are: | |
607 | * 'normal'|'warn'|'error' | |
608 | * | |
609 | * NOTE: Options could be added in the future. | |
610 | * NOTE: If this function is called multiple times, remember that the | |
611 | * interface could be only showing the latest notification. | |
612 | */ | |
613 | _notification: function(msg, level, options) { | |
614 | switch (level) { | |
615 | case 'normal': | |
616 | case 'warn': | |
617 | case 'error': | |
618 | Log.Debug("Notification[" + level + "]:" + msg); | |
619 | break; | |
620 | default: | |
621 | Log.Error("Invalid notification level: " + level); | |
622 | return; | |
623 | } | |
b2e961d4 | 624 | |
6d6f0db0 SR |
625 | if (options) { |
626 | this._onNotification(this, msg, level, options); | |
627 | } else { | |
628 | this._onNotification(this, msg, level); | |
629 | } | |
630 | }, | |
b1dee947 | 631 | |
6d6f0db0 SR |
632 | _handle_message: function () { |
633 | if (this._sock.rQlen() === 0) { | |
634 | Log.Warn("handle_message called on an empty receive queue"); | |
635 | return; | |
636 | } | |
b1dee947 | 637 | |
6d6f0db0 SR |
638 | switch (this._rfb_connection_state) { |
639 | case 'disconnected': | |
640 | Log.Error("Got data while disconnected"); | |
641 | break; | |
642 | case 'connected': | |
643 | while (true) { | |
644 | if (this._flushing) { | |
645 | break; | |
646 | } | |
647 | if (!this._normal_msg()) { | |
648 | break; | |
649 | } | |
650 | if (this._sock.rQlen() === 0) { | |
651 | break; | |
652 | } | |
653 | } | |
654 | break; | |
655 | default: | |
656 | this._init_msg(); | |
657 | break; | |
658 | } | |
659 | }, | |
3bb12056 | 660 | |
d0703d1b PO |
661 | _handleKeyEvent: function (keysym, code, down) { |
662 | this.sendKey(keysym, code, down); | |
6d6f0db0 | 663 | }, |
06a9ef0c | 664 | |
6d6f0db0 SR |
665 | _handleMouseButton: function (x, y, down, bmask) { |
666 | if (down) { | |
667 | this._mouse_buttonMask |= bmask; | |
668 | } else { | |
270bdbd7 | 669 | this._mouse_buttonMask &= ~bmask; |
6d6f0db0 | 670 | } |
a7127fee | 671 | |
6d6f0db0 SR |
672 | if (this._viewportDrag) { |
673 | if (down && !this._viewportDragging) { | |
674 | this._viewportDragging = true; | |
675 | this._viewportDragPos = {'x': x, 'y': y}; | |
a7127fee | 676 | |
6d6f0db0 | 677 | // Skip sending mouse events |
b1dee947 | 678 | return; |
6d6f0db0 SR |
679 | } else { |
680 | this._viewportDragging = false; | |
8db09746 | 681 | |
6d6f0db0 SR |
682 | // If the viewport didn't actually move, then treat as a mouse click event |
683 | // Send the button down event here, as the button up event is sent at the end of this function | |
684 | if (!this._viewportHasMoved && !this._view_only) { | |
685 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), bmask); | |
686 | } | |
687 | this._viewportHasMoved = false; | |
b1dee947 | 688 | } |
6d6f0db0 | 689 | } |
8db09746 | 690 | |
6d6f0db0 | 691 | if (this._view_only) { return; } // View only, skip mouse events |
8f06673a | 692 | |
6d6f0db0 SR |
693 | if (this._rfb_connection_state !== 'connected') { return; } |
694 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
695 | }, | |
8db09746 | 696 | |
6d6f0db0 SR |
697 | _handleMouseMove: function (x, y) { |
698 | if (this._viewportDragging) { | |
699 | var deltaX = this._viewportDragPos.x - x; | |
700 | var deltaY = this._viewportDragPos.y - y; | |
8db09746 | 701 | |
6d6f0db0 SR |
702 | // The goal is to trigger on a certain physical width, the |
703 | // devicePixelRatio brings us a bit closer but is not optimal. | |
704 | var dragThreshold = 10 * (window.devicePixelRatio || 1); | |
8db09746 | 705 | |
6d6f0db0 SR |
706 | if (this._viewportHasMoved || (Math.abs(deltaX) > dragThreshold || |
707 | Math.abs(deltaY) > dragThreshold)) { | |
708 | this._viewportHasMoved = true; | |
27e77d46 | 709 | |
6d6f0db0 SR |
710 | this._viewportDragPos = {'x': x, 'y': y}; |
711 | this._display.viewportChangePos(deltaX, deltaY); | |
b50f3406 | 712 | } |
8db09746 | 713 | |
6d6f0db0 SR |
714 | // Skip sending mouse events |
715 | return; | |
716 | } | |
b1dee947 | 717 | |
6d6f0db0 | 718 | if (this._view_only) { return; } // View only, skip mouse events |
b1dee947 | 719 | |
6d6f0db0 SR |
720 | if (this._rfb_connection_state !== 'connected') { return; } |
721 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
722 | }, | |
b1dee947 | 723 | |
6d6f0db0 | 724 | // Message Handlers |
27e77d46 | 725 | |
6d6f0db0 SR |
726 | _negotiate_protocol_version: function () { |
727 | if (this._sock.rQlen() < 12) { | |
728 | return this._fail("Error while negotiating with server", | |
729 | "Incomplete protocol version"); | |
730 | } | |
32df3fdb | 731 | |
6d6f0db0 SR |
732 | var sversion = this._sock.rQshiftStr(12).substr(4, 7); |
733 | Log.Info("Server ProtocolVersion: " + sversion); | |
734 | var is_repeater = 0; | |
735 | switch (sversion) { | |
736 | case "000.000": // UltraVNC repeater | |
737 | is_repeater = 1; | |
738 | break; | |
739 | case "003.003": | |
740 | case "003.006": // UltraVNC | |
741 | case "003.889": // Apple Remote Desktop | |
742 | this._rfb_version = 3.3; | |
743 | break; | |
744 | case "003.007": | |
745 | this._rfb_version = 3.7; | |
746 | break; | |
747 | case "003.008": | |
748 | case "004.000": // Intel AMT KVM | |
749 | case "004.001": // RealVNC 4.6 | |
750 | case "005.000": // RealVNC 5.3 | |
751 | this._rfb_version = 3.8; | |
752 | break; | |
753 | default: | |
754 | return this._fail("Unsupported server", | |
755 | "Invalid server version: " + sversion); | |
756 | } | |
8db09746 | 757 | |
6d6f0db0 SR |
758 | if (is_repeater) { |
759 | var repeaterID = this._repeaterID; | |
760 | while (repeaterID.length < 250) { | |
761 | repeaterID += "\0"; | |
b1dee947 | 762 | } |
6d6f0db0 SR |
763 | this._sock.send_string(repeaterID); |
764 | return true; | |
765 | } | |
b1dee947 | 766 | |
6d6f0db0 SR |
767 | if (this._rfb_version > this._rfb_max_version) { |
768 | this._rfb_version = this._rfb_max_version; | |
769 | } | |
b1dee947 | 770 | |
6d6f0db0 SR |
771 | var cversion = "00" + parseInt(this._rfb_version, 10) + |
772 | ".00" + ((this._rfb_version * 10) % 10); | |
773 | this._sock.send_string("RFB " + cversion + "\n"); | |
774 | Log.Debug('Sent ProtocolVersion: ' + cversion); | |
b1dee947 | 775 | |
6d6f0db0 SR |
776 | this._rfb_init_state = 'Security'; |
777 | }, | |
b1dee947 | 778 | |
6d6f0db0 SR |
779 | _negotiate_security: function () { |
780 | // Polyfill since IE and PhantomJS doesn't have | |
781 | // TypedArray.includes() | |
782 | function includes(item, array) { | |
783 | for (var i = 0; i < array.length; i++) { | |
784 | if (array[i] === item) { | |
785 | return true; | |
786 | } | |
b1dee947 | 787 | } |
6d6f0db0 SR |
788 | return false; |
789 | } | |
b1dee947 | 790 | |
6d6f0db0 SR |
791 | if (this._rfb_version >= 3.7) { |
792 | // Server sends supported list, client decides | |
793 | var num_types = this._sock.rQshift8(); | |
794 | if (this._sock.rQwait("security type", num_types, 1)) { return false; } | |
b1dee947 | 795 | |
6d6f0db0 SR |
796 | if (num_types === 0) { |
797 | var strlen = this._sock.rQshift32(); | |
798 | var reason = this._sock.rQshiftStr(strlen); | |
799 | return this._fail("Error while negotiating with server", | |
800 | "Security failure: " + reason); | |
801 | } | |
802 | ||
803 | var types = this._sock.rQshiftBytes(num_types); | |
804 | Log.Debug("Server security types: " + types); | |
805 | ||
806 | // Look for each auth in preferred order | |
807 | this._rfb_auth_scheme = 0; | |
808 | if (includes(1, types)) { | |
809 | this._rfb_auth_scheme = 1; // None | |
810 | } else if (includes(22, types)) { | |
811 | this._rfb_auth_scheme = 22; // XVP | |
812 | } else if (includes(16, types)) { | |
813 | this._rfb_auth_scheme = 16; // Tight | |
814 | } else if (includes(2, types)) { | |
815 | this._rfb_auth_scheme = 2; // VNC Auth | |
816 | } else { | |
817 | return this._fail("Unsupported server", | |
818 | "Unsupported security types: " + types); | |
8db09746 | 819 | } |
b1dee947 | 820 | |
6d6f0db0 SR |
821 | this._sock.send([this._rfb_auth_scheme]); |
822 | } else { | |
823 | // Server decides | |
824 | if (this._sock.rQwait("security scheme", 4)) { return false; } | |
825 | this._rfb_auth_scheme = this._sock.rQshift32(); | |
826 | } | |
b1dee947 | 827 | |
6d6f0db0 SR |
828 | this._rfb_init_state = 'Authentication'; |
829 | Log.Debug('Authenticating using scheme: ' + this._rfb_auth_scheme); | |
b1dee947 | 830 | |
6d6f0db0 SR |
831 | return this._init_msg(); // jump to authentication |
832 | }, | |
b1dee947 | 833 | |
6d6f0db0 SR |
834 | // authentication |
835 | _negotiate_xvp_auth: function () { | |
836 | var xvp_sep = this._xvp_password_sep; | |
837 | var xvp_auth = this._rfb_password.split(xvp_sep); | |
838 | if (xvp_auth.length < 3) { | |
839 | var msg = 'XVP credentials required (user' + xvp_sep + | |
840 | 'target' + xvp_sep + 'password) -- got only ' + this._rfb_password; | |
841 | this._onPasswordRequired(this, msg); | |
842 | return false; | |
843 | } | |
0ee5ca6e | 844 | |
6d6f0db0 SR |
845 | var xvp_auth_str = String.fromCharCode(xvp_auth[0].length) + |
846 | String.fromCharCode(xvp_auth[1].length) + | |
847 | xvp_auth[0] + | |
848 | xvp_auth[1]; | |
849 | this._sock.send_string(xvp_auth_str); | |
850 | this._rfb_password = xvp_auth.slice(2).join(xvp_sep); | |
851 | this._rfb_auth_scheme = 2; | |
852 | return this._negotiate_authentication(); | |
853 | }, | |
854 | ||
855 | _negotiate_std_vnc_auth: function () { | |
abfe5b7a SM |
856 | if (this._sock.rQwait("auth challenge", 16)) { return false; } |
857 | ||
6d6f0db0 SR |
858 | if (this._rfb_password.length === 0) { |
859 | this._onPasswordRequired(this); | |
860 | return false; | |
861 | } | |
b1dee947 | 862 | |
6d6f0db0 SR |
863 | // TODO(directxman12): make genDES not require an Array |
864 | var challenge = Array.prototype.slice.call(this._sock.rQshiftBytes(16)); | |
865 | var response = RFB.genDES(this._rfb_password, challenge); | |
866 | this._sock.send(response); | |
867 | this._rfb_init_state = "SecurityResult"; | |
868 | return true; | |
869 | }, | |
870 | ||
871 | _negotiate_tight_tunnels: function (numTunnels) { | |
872 | var clientSupportedTunnelTypes = { | |
873 | 0: { vendor: 'TGHT', signature: 'NOTUNNEL' } | |
874 | }; | |
875 | var serverSupportedTunnelTypes = {}; | |
876 | // receive tunnel capabilities | |
877 | for (var i = 0; i < numTunnels; i++) { | |
878 | var cap_code = this._sock.rQshift32(); | |
879 | var cap_vendor = this._sock.rQshiftStr(4); | |
880 | var cap_signature = this._sock.rQshiftStr(8); | |
881 | serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature }; | |
882 | } | |
883 | ||
884 | // choose the notunnel type | |
885 | if (serverSupportedTunnelTypes[0]) { | |
886 | if (serverSupportedTunnelTypes[0].vendor != clientSupportedTunnelTypes[0].vendor || | |
887 | serverSupportedTunnelTypes[0].signature != clientSupportedTunnelTypes[0].signature) { | |
888 | return this._fail("Unsupported server", | |
889 | "Client's tunnel type had the incorrect " + | |
890 | "vendor or signature"); | |
b1dee947 | 891 | } |
6d6f0db0 SR |
892 | this._sock.send([0, 0, 0, 0]); // use NOTUNNEL |
893 | return false; // wait until we receive the sub auth count to continue | |
894 | } else { | |
895 | return this._fail("Unsupported server", | |
896 | "Server wanted tunnels, but doesn't support " + | |
897 | "the notunnel type"); | |
898 | } | |
899 | }, | |
b1dee947 | 900 | |
6d6f0db0 SR |
901 | _negotiate_tight_auth: function () { |
902 | if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation | |
903 | if (this._sock.rQwait("num tunnels", 4)) { return false; } | |
904 | var numTunnels = this._sock.rQshift32(); | |
905 | if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; } | |
c00ee156 | 906 | |
6d6f0db0 | 907 | this._rfb_tightvnc = true; |
b1dee947 | 908 | |
6d6f0db0 SR |
909 | if (numTunnels > 0) { |
910 | this._negotiate_tight_tunnels(numTunnels); | |
911 | return false; // wait until we receive the sub auth to continue | |
b1dee947 | 912 | } |
6d6f0db0 | 913 | } |
b1dee947 | 914 | |
6d6f0db0 SR |
915 | // second pass, do the sub-auth negotiation |
916 | if (this._sock.rQwait("sub auth count", 4)) { return false; } | |
917 | var subAuthCount = this._sock.rQshift32(); | |
918 | if (subAuthCount === 0) { // empty sub-auth list received means 'no auth' subtype selected | |
919 | this._rfb_init_state = 'SecurityResult'; | |
920 | return true; | |
921 | } | |
b1dee947 | 922 | |
6d6f0db0 | 923 | if (this._sock.rQwait("sub auth capabilities", 16 * subAuthCount, 4)) { return false; } |
b1dee947 | 924 | |
6d6f0db0 SR |
925 | var clientSupportedTypes = { |
926 | 'STDVNOAUTH__': 1, | |
927 | 'STDVVNCAUTH_': 2 | |
928 | }; | |
b1dee947 | 929 | |
6d6f0db0 | 930 | var serverSupportedTypes = []; |
95eb681b | 931 | |
6d6f0db0 SR |
932 | for (var i = 0; i < subAuthCount; i++) { |
933 | var capNum = this._sock.rQshift32(); | |
934 | var capabilities = this._sock.rQshiftStr(12); | |
935 | serverSupportedTypes.push(capabilities); | |
936 | } | |
d86cc2d9 | 937 | |
6d6f0db0 SR |
938 | for (var authType in clientSupportedTypes) { |
939 | if (serverSupportedTypes.indexOf(authType) != -1) { | |
940 | this._sock.send([0, 0, 0, clientSupportedTypes[authType]]); | |
d86cc2d9 | 941 | |
6d6f0db0 SR |
942 | switch (authType) { |
943 | case 'STDVNOAUTH__': // no auth | |
944 | this._rfb_init_state = 'SecurityResult'; | |
945 | return true; | |
946 | case 'STDVVNCAUTH_': // VNC auth | |
947 | this._rfb_auth_scheme = 2; | |
948 | return this._init_msg(); | |
949 | default: | |
950 | return this._fail("Unsupported server", | |
951 | "Unsupported tiny auth scheme: " + | |
952 | authType); | |
b1dee947 SR |
953 | } |
954 | } | |
6d6f0db0 | 955 | } |
b1dee947 | 956 | |
6d6f0db0 SR |
957 | return this._fail("Unsupported server", |
958 | "No supported sub-auth types!"); | |
959 | }, | |
960 | ||
961 | _negotiate_authentication: function () { | |
962 | switch (this._rfb_auth_scheme) { | |
963 | case 0: // connection failed | |
964 | if (this._sock.rQwait("auth reason", 4)) { return false; } | |
965 | var strlen = this._sock.rQshift32(); | |
966 | var reason = this._sock.rQshiftStr(strlen); | |
967 | return this._fail("Authentication failure", reason); | |
968 | ||
969 | case 1: // no auth | |
970 | if (this._rfb_version >= 3.8) { | |
971 | this._rfb_init_state = 'SecurityResult'; | |
972 | return true; | |
973 | } | |
974 | this._rfb_init_state = 'ClientInitialisation'; | |
975 | return this._init_msg(); | |
95eb681b | 976 | |
6d6f0db0 SR |
977 | case 22: // XVP auth |
978 | return this._negotiate_xvp_auth(); | |
d86cc2d9 | 979 | |
6d6f0db0 SR |
980 | case 2: // VNC authentication |
981 | return this._negotiate_std_vnc_auth(); | |
d86cc2d9 | 982 | |
6d6f0db0 SR |
983 | case 16: // TightVNC Security Type |
984 | return this._negotiate_tight_auth(); | |
d86cc2d9 | 985 | |
6d6f0db0 SR |
986 | default: |
987 | return this._fail("Unsupported server", | |
988 | "Unsupported auth scheme: " + | |
989 | this._rfb_auth_scheme); | |
990 | } | |
991 | }, | |
992 | ||
993 | _handle_security_result: function () { | |
994 | if (this._sock.rQwait('VNC auth response ', 4)) { return false; } | |
995 | switch (this._sock.rQshift32()) { | |
996 | case 0: // OK | |
997 | this._rfb_init_state = 'ClientInitialisation'; | |
998 | Log.Debug('Authentication OK'); | |
999 | return this._init_msg(); | |
1000 | case 1: // failed | |
1001 | if (this._rfb_version >= 3.8) { | |
1002 | var length = this._sock.rQshift32(); | |
1003 | if (this._sock.rQwait("SecurityResult reason", length, 8)) { return false; } | |
1004 | var reason = this._sock.rQshiftStr(length); | |
1005 | return this._fail("Authentication failure", reason); | |
1006 | } else { | |
1007 | return this._fail("Authentication failure"); | |
d86cc2d9 | 1008 | } |
6d6f0db0 SR |
1009 | case 2: |
1010 | return this._fail("Too many authentication attempts"); | |
1011 | default: | |
1012 | return this._fail("Unsupported server", | |
1013 | "Unknown SecurityResult"); | |
1014 | } | |
1015 | }, | |
1016 | ||
1017 | _negotiate_server_init: function () { | |
1018 | if (this._sock.rQwait("server initialization", 24)) { return false; } | |
1019 | ||
1020 | /* Screen size */ | |
91d5c625 PO |
1021 | var width = this._sock.rQshift16(); |
1022 | var height = this._sock.rQshift16(); | |
6d6f0db0 SR |
1023 | |
1024 | /* PIXEL_FORMAT */ | |
1025 | var bpp = this._sock.rQshift8(); | |
1026 | var depth = this._sock.rQshift8(); | |
1027 | var big_endian = this._sock.rQshift8(); | |
1028 | var true_color = this._sock.rQshift8(); | |
1029 | ||
1030 | var red_max = this._sock.rQshift16(); | |
1031 | var green_max = this._sock.rQshift16(); | |
1032 | var blue_max = this._sock.rQshift16(); | |
1033 | var red_shift = this._sock.rQshift8(); | |
1034 | var green_shift = this._sock.rQshift8(); | |
1035 | var blue_shift = this._sock.rQshift8(); | |
1036 | this._sock.rQskipBytes(3); // padding | |
1037 | ||
1038 | // NB(directxman12): we don't want to call any callbacks or print messages until | |
1039 | // *after* we're past the point where we could backtrack | |
1040 | ||
1041 | /* Connection name/title */ | |
1042 | var name_length = this._sock.rQshift32(); | |
1043 | if (this._sock.rQwait('server init name', name_length, 24)) { return false; } | |
1044 | this._fb_name = decodeUTF8(this._sock.rQshiftStr(name_length)); | |
1045 | ||
1046 | if (this._rfb_tightvnc) { | |
1047 | if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; } | |
1048 | // In TightVNC mode, ServerInit message is extended | |
1049 | var numServerMessages = this._sock.rQshift16(); | |
1050 | var numClientMessages = this._sock.rQshift16(); | |
1051 | var numEncodings = this._sock.rQshift16(); | |
1052 | this._sock.rQskipBytes(2); // padding | |
1053 | ||
1054 | var totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16; | |
1055 | if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; } | |
1056 | ||
1057 | // we don't actually do anything with the capability information that TIGHT sends, | |
1058 | // so we just skip the all of this. | |
1059 | ||
1060 | // TIGHT server message capabilities | |
1061 | this._sock.rQskipBytes(16 * numServerMessages); | |
1062 | ||
1063 | // TIGHT client message capabilities | |
1064 | this._sock.rQskipBytes(16 * numClientMessages); | |
1065 | ||
1066 | // TIGHT encoding capabilities | |
1067 | this._sock.rQskipBytes(16 * numEncodings); | |
1068 | } | |
d86cc2d9 | 1069 | |
6d6f0db0 SR |
1070 | // NB(directxman12): these are down here so that we don't run them multiple times |
1071 | // if we backtrack | |
91d5c625 | 1072 | Log.Info("Screen: " + width + "x" + height + |
6d6f0db0 SR |
1073 | ", bpp: " + bpp + ", depth: " + depth + |
1074 | ", big_endian: " + big_endian + | |
1075 | ", true_color: " + true_color + | |
1076 | ", red_max: " + red_max + | |
1077 | ", green_max: " + green_max + | |
1078 | ", blue_max: " + blue_max + | |
1079 | ", red_shift: " + red_shift + | |
1080 | ", green_shift: " + green_shift + | |
1081 | ", blue_shift: " + blue_shift); | |
1082 | ||
1083 | if (big_endian !== 0) { | |
1084 | Log.Warn("Server native endian is not little endian"); | |
1085 | } | |
b1dee947 | 1086 | |
6d6f0db0 SR |
1087 | if (red_shift !== 16) { |
1088 | Log.Warn("Server native red-shift is not 16"); | |
1089 | } | |
b1dee947 | 1090 | |
6d6f0db0 SR |
1091 | if (blue_shift !== 0) { |
1092 | Log.Warn("Server native blue-shift is not 0"); | |
1093 | } | |
b1dee947 | 1094 | |
6d6f0db0 SR |
1095 | // we're past the point where we could backtrack, so it's safe to call this |
1096 | this._onDesktopName(this, this._fb_name); | |
b1dee947 | 1097 | |
91d5c625 | 1098 | this._resize(width, height); |
b1dee947 | 1099 | |
6d6f0db0 SR |
1100 | if (!this._view_only) { this._keyboard.grab(); } |
1101 | if (!this._view_only) { this._mouse.grab(); } | |
b1dee947 | 1102 | |
5a5f5ada PO |
1103 | this._fb_depth = 24; |
1104 | ||
1105 | if (this._fb_name === "Intel(r) AMT KVM") { | |
1106 | Log.Warn("Intel AMT KVM only supports 8/16 bit depths. Using low color mode."); | |
1107 | this._fb_depth = 8; | |
1108 | } | |
1109 | ||
1110 | RFB.messages.pixelFormat(this._sock, this._fb_depth, true); | |
49a81837 | 1111 | this._sendEncodings(); |
6d6f0db0 SR |
1112 | RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fb_width, this._fb_height); |
1113 | ||
1114 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1115 | this._timing.pixels = 0; | |
1116 | ||
cd74793b PO |
1117 | // Cursor will be server side until the server decides to honor |
1118 | // our request and send over the cursor image | |
1119 | this._display.disableLocalCursor(); | |
1120 | ||
6d6f0db0 SR |
1121 | this._updateConnectionState('connected'); |
1122 | return true; | |
1123 | }, | |
1124 | ||
49a81837 PO |
1125 | _sendEncodings: function () { |
1126 | var encs = []; | |
1127 | ||
1128 | // In preference order | |
1129 | encs.push(encodings.encodingCopyRect); | |
5a5f5ada PO |
1130 | // Only supported with full depth support |
1131 | if (this._fb_depth == 24) { | |
1132 | encs.push(encodings.encodingTight); | |
1133 | encs.push(encodings.encodingHextile); | |
1134 | encs.push(encodings.encodingRRE); | |
1135 | } | |
49a81837 PO |
1136 | encs.push(encodings.encodingRaw); |
1137 | ||
1138 | // Psuedo-encoding settings | |
1139 | encs.push(encodings.pseudoEncodingTightPNG); | |
1140 | encs.push(encodings.pseudoEncodingQualityLevel0 + 6); | |
1141 | encs.push(encodings.pseudoEncodingCompressLevel0 + 2); | |
1142 | ||
1143 | encs.push(encodings.pseudoEncodingDesktopSize); | |
1144 | encs.push(encodings.pseudoEncodingLastRect); | |
1145 | encs.push(encodings.pseudoEncodingQEMUExtendedKeyEvent); | |
1146 | encs.push(encodings.pseudoEncodingExtendedDesktopSize); | |
1147 | encs.push(encodings.pseudoEncodingXvp); | |
1148 | encs.push(encodings.pseudoEncodingFence); | |
1149 | encs.push(encodings.pseudoEncodingContinuousUpdates); | |
1150 | ||
5a5f5ada | 1151 | if (this._local_cursor && this._fb_depth == 24) { |
49a81837 PO |
1152 | encs.push(encodings.pseudoEncodingCursor); |
1153 | } | |
1154 | ||
1155 | RFB.messages.clientEncodings(this._sock, encs); | |
1156 | }, | |
1157 | ||
6d6f0db0 SR |
1158 | /* RFB protocol initialization states: |
1159 | * ProtocolVersion | |
1160 | * Security | |
1161 | * Authentication | |
1162 | * SecurityResult | |
1163 | * ClientInitialization - not triggered by server message | |
1164 | * ServerInitialization | |
1165 | */ | |
1166 | _init_msg: function () { | |
1167 | switch (this._rfb_init_state) { | |
1168 | case 'ProtocolVersion': | |
1169 | return this._negotiate_protocol_version(); | |
1170 | ||
1171 | case 'Security': | |
1172 | return this._negotiate_security(); | |
1173 | ||
1174 | case 'Authentication': | |
1175 | return this._negotiate_authentication(); | |
1176 | ||
1177 | case 'SecurityResult': | |
1178 | return this._handle_security_result(); | |
1179 | ||
1180 | case 'ClientInitialisation': | |
1181 | this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation | |
1182 | this._rfb_init_state = 'ServerInitialisation'; | |
1183 | return true; | |
b1dee947 | 1184 | |
6d6f0db0 SR |
1185 | case 'ServerInitialisation': |
1186 | return this._negotiate_server_init(); | |
b1dee947 | 1187 | |
6d6f0db0 SR |
1188 | default: |
1189 | return this._fail("Internal error", "Unknown init state: " + | |
1190 | this._rfb_init_state); | |
1191 | } | |
1192 | }, | |
b1dee947 | 1193 | |
6d6f0db0 SR |
1194 | _handle_set_colour_map_msg: function () { |
1195 | Log.Debug("SetColorMapEntries"); | |
b1dee947 | 1196 | |
26586b9d | 1197 | return this._fail("Protocol error", "Unexpected SetColorMapEntries message"); |
6d6f0db0 | 1198 | }, |
b1dee947 | 1199 | |
6d6f0db0 SR |
1200 | _handle_server_cut_text: function () { |
1201 | Log.Debug("ServerCutText"); | |
b1dee947 | 1202 | |
6d6f0db0 SR |
1203 | if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; } |
1204 | this._sock.rQskipBytes(3); // Padding | |
1205 | var length = this._sock.rQshift32(); | |
1206 | if (this._sock.rQwait("ServerCutText", length, 8)) { return false; } | |
b1dee947 | 1207 | |
6d6f0db0 | 1208 | var text = this._sock.rQshiftStr(length); |
b4ff032e SR |
1209 | |
1210 | if (this._view_only) { return true; } | |
1211 | ||
6d6f0db0 | 1212 | this._onClipboard(this, text); |
b1dee947 | 1213 | |
6d6f0db0 SR |
1214 | return true; |
1215 | }, | |
b1dee947 | 1216 | |
6d6f0db0 SR |
1217 | _handle_server_fence_msg: function() { |
1218 | if (this._sock.rQwait("ServerFence header", 8, 1)) { return false; } | |
1219 | this._sock.rQskipBytes(3); // Padding | |
1220 | var flags = this._sock.rQshift32(); | |
1221 | var length = this._sock.rQshift8(); | |
b1dee947 | 1222 | |
6d6f0db0 | 1223 | if (this._sock.rQwait("ServerFence payload", length, 9)) { return false; } |
b1dee947 | 1224 | |
6d6f0db0 SR |
1225 | if (length > 64) { |
1226 | Log.Warn("Bad payload length (" + length + ") in fence response"); | |
1227 | length = 64; | |
1228 | } | |
4e0c36dd | 1229 | |
6d6f0db0 | 1230 | var payload = this._sock.rQshiftStr(length); |
b1dee947 | 1231 | |
6d6f0db0 | 1232 | this._supportsFence = true; |
b1dee947 | 1233 | |
6d6f0db0 SR |
1234 | /* |
1235 | * Fence flags | |
1236 | * | |
1237 | * (1<<0) - BlockBefore | |
1238 | * (1<<1) - BlockAfter | |
1239 | * (1<<2) - SyncNext | |
1240 | * (1<<31) - Request | |
1241 | */ | |
b1dee947 | 1242 | |
6d6f0db0 SR |
1243 | if (!(flags & (1<<31))) { |
1244 | return this._fail("Internal error", | |
1245 | "Unexpected fence response"); | |
1246 | } | |
b1dee947 | 1247 | |
6d6f0db0 SR |
1248 | // Filter out unsupported flags |
1249 | // FIXME: support syncNext | |
1250 | flags &= (1<<0) | (1<<1); | |
b1dee947 | 1251 | |
6d6f0db0 SR |
1252 | // BlockBefore and BlockAfter are automatically handled by |
1253 | // the fact that we process each incoming message | |
1254 | // synchronuosly. | |
1255 | RFB.messages.clientFence(this._sock, flags, payload); | |
f78a652e | 1256 | |
6d6f0db0 SR |
1257 | return true; |
1258 | }, | |
b1dee947 | 1259 | |
6d6f0db0 SR |
1260 | _handle_xvp_msg: function () { |
1261 | if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; } | |
1262 | this._sock.rQskip8(); // Padding | |
1263 | var xvp_ver = this._sock.rQshift8(); | |
1264 | var xvp_msg = this._sock.rQshift8(); | |
b1dee947 | 1265 | |
6d6f0db0 SR |
1266 | switch (xvp_msg) { |
1267 | case 0: // XVP_FAIL | |
1268 | Log.Error("Operation Failed"); | |
1269 | this._notification("XVP Operation Failed", 'error'); | |
1270 | break; | |
1271 | case 1: // XVP_INIT | |
1272 | this._rfb_xvp_ver = xvp_ver; | |
1273 | Log.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")"); | |
1274 | this._onXvpInit(this._rfb_xvp_ver); | |
1275 | break; | |
1276 | default: | |
1277 | this._fail("Unexpected server message", | |
1278 | "Illegal server XVP message " + xvp_msg); | |
1279 | break; | |
1280 | } | |
b1dee947 | 1281 | |
6d6f0db0 SR |
1282 | return true; |
1283 | }, | |
3df13262 | 1284 | |
6d6f0db0 SR |
1285 | _normal_msg: function () { |
1286 | var msg_type; | |
76a86ff5 | 1287 | |
6d6f0db0 SR |
1288 | if (this._FBU.rects > 0) { |
1289 | msg_type = 0; | |
1290 | } else { | |
1291 | msg_type = this._sock.rQshift8(); | |
1292 | } | |
76a86ff5 | 1293 | |
6d6f0db0 SR |
1294 | switch (msg_type) { |
1295 | case 0: // FramebufferUpdate | |
1296 | var ret = this._framebufferUpdate(); | |
1297 | if (ret && !this._enabledContinuousUpdates) { | |
1298 | RFB.messages.fbUpdateRequest(this._sock, true, 0, 0, | |
1299 | this._fb_width, this._fb_height); | |
1300 | } | |
1301 | return ret; | |
3df13262 | 1302 | |
6d6f0db0 SR |
1303 | case 1: // SetColorMapEntries |
1304 | return this._handle_set_colour_map_msg(); | |
1305 | ||
1306 | case 2: // Bell | |
1307 | Log.Debug("Bell"); | |
1308 | this._onBell(this); | |
1309 | return true; | |
1310 | ||
1311 | case 3: // ServerCutText | |
1312 | return this._handle_server_cut_text(); | |
1313 | ||
1314 | case 150: // EndOfContinuousUpdates | |
1315 | var first = !(this._supportsContinuousUpdates); | |
1316 | this._supportsContinuousUpdates = true; | |
1317 | this._enabledContinuousUpdates = false; | |
1318 | if (first) { | |
1319 | this._enabledContinuousUpdates = true; | |
1320 | this._updateContinuousUpdates(); | |
1321 | Log.Info("Enabling continuous updates."); | |
1322 | } else { | |
1323 | // FIXME: We need to send a framebufferupdaterequest here | |
1324 | // if we add support for turning off continuous updates | |
1325 | } | |
1326 | return true; | |
3df13262 | 1327 | |
6d6f0db0 SR |
1328 | case 248: // ServerFence |
1329 | return this._handle_server_fence_msg(); | |
3df13262 | 1330 | |
6d6f0db0 SR |
1331 | case 250: // XVP |
1332 | return this._handle_xvp_msg(); | |
3df13262 | 1333 | |
6d6f0db0 SR |
1334 | default: |
1335 | this._fail("Unexpected server message", "Type:" + msg_type); | |
1336 | Log.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30)); | |
1337 | return true; | |
1338 | } | |
1339 | }, | |
3df13262 | 1340 | |
6d6f0db0 SR |
1341 | _onFlush: function() { |
1342 | this._flushing = false; | |
1343 | // Resume processing | |
1344 | if (this._sock.rQlen() > 0) { | |
1345 | this._handle_message(); | |
1346 | } | |
1347 | }, | |
3df13262 | 1348 | |
6d6f0db0 SR |
1349 | _framebufferUpdate: function () { |
1350 | var ret = true; | |
1351 | var now; | |
3df13262 | 1352 | |
6d6f0db0 SR |
1353 | if (this._FBU.rects === 0) { |
1354 | if (this._sock.rQwait("FBU header", 3, 1)) { return false; } | |
b1dee947 | 1355 | this._sock.rQskip8(); // Padding |
6d6f0db0 SR |
1356 | this._FBU.rects = this._sock.rQshift16(); |
1357 | this._FBU.bytes = 0; | |
1358 | this._timing.cur_fbu = 0; | |
1359 | if (this._timing.fbu_rt_start > 0) { | |
1360 | now = (new Date()).getTime(); | |
1361 | Log.Info("First FBU latency: " + (now - this._timing.fbu_rt_start)); | |
b1dee947 SR |
1362 | } |
1363 | ||
6d6f0db0 SR |
1364 | // Make sure the previous frame is fully rendered first |
1365 | // to avoid building up an excessive queue | |
1366 | if (this._display.pending()) { | |
1367 | this._flushing = true; | |
1368 | this._display.flush(); | |
1369 | return false; | |
1370 | } | |
1371 | } | |
b1dee947 | 1372 | |
6d6f0db0 SR |
1373 | while (this._FBU.rects > 0) { |
1374 | if (this._rfb_connection_state !== 'connected') { return false; } | |
b1dee947 | 1375 | |
6d6f0db0 SR |
1376 | if (this._sock.rQwait("FBU", this._FBU.bytes)) { return false; } |
1377 | if (this._FBU.bytes === 0) { | |
1378 | if (this._sock.rQwait("rect header", 12)) { return false; } | |
1379 | /* New FramebufferUpdate */ | |
b1dee947 | 1380 | |
6d6f0db0 SR |
1381 | var hdr = this._sock.rQshiftBytes(12); |
1382 | this._FBU.x = (hdr[0] << 8) + hdr[1]; | |
1383 | this._FBU.y = (hdr[2] << 8) + hdr[3]; | |
1384 | this._FBU.width = (hdr[4] << 8) + hdr[5]; | |
1385 | this._FBU.height = (hdr[6] << 8) + hdr[7]; | |
1386 | this._FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
1387 | (hdr[10] << 8) + hdr[11], 10); | |
b1dee947 | 1388 | |
6d6f0db0 SR |
1389 | this._onFBUReceive(this, |
1390 | {'x': this._FBU.x, 'y': this._FBU.y, | |
1391 | 'width': this._FBU.width, 'height': this._FBU.height, | |
1392 | 'encoding': this._FBU.encoding, | |
f8ec2df2 | 1393 | 'encodingName': encodingName(this._FBU.encoding)}); |
b1dee947 | 1394 | |
49a81837 | 1395 | if (!this._encHandlers[this._FBU.encoding]) { |
6d6f0db0 SR |
1396 | this._fail("Unexpected server message", |
1397 | "Unsupported encoding " + | |
1398 | this._FBU.encoding); | |
1399 | return false; | |
1400 | } | |
1401 | } | |
b1dee947 | 1402 | |
6d6f0db0 | 1403 | this._timing.last_fbu = (new Date()).getTime(); |
76a86ff5 | 1404 | |
6d6f0db0 | 1405 | ret = this._encHandlers[this._FBU.encoding](); |
3df13262 | 1406 | |
6d6f0db0 SR |
1407 | now = (new Date()).getTime(); |
1408 | this._timing.cur_fbu += (now - this._timing.last_fbu); | |
b1dee947 | 1409 | |
6d6f0db0 | 1410 | if (ret) { |
c3386227 PO |
1411 | if (!(this._FBU.encoding in this._encStats)) { |
1412 | this._encStats[this._FBU.encoding] = [0, 0]; | |
1413 | } | |
6d6f0db0 SR |
1414 | this._encStats[this._FBU.encoding][0]++; |
1415 | this._encStats[this._FBU.encoding][1]++; | |
1416 | this._timing.pixels += this._FBU.width * this._FBU.height; | |
b1dee947 | 1417 | } |
b1dee947 | 1418 | |
6d6f0db0 SR |
1419 | if (this._timing.pixels >= (this._fb_width * this._fb_height)) { |
1420 | if ((this._FBU.width === this._fb_width && this._FBU.height === this._fb_height) || | |
1421 | this._timing.fbu_rt_start > 0) { | |
1422 | this._timing.full_fbu_total += this._timing.cur_fbu; | |
1423 | this._timing.full_fbu_cnt++; | |
1424 | Log.Info("Timing of full FBU, curr: " + | |
1425 | this._timing.cur_fbu + ", total: " + | |
1426 | this._timing.full_fbu_total + ", cnt: " + | |
1427 | this._timing.full_fbu_cnt + ", avg: " + | |
1428 | (this._timing.full_fbu_total / this._timing.full_fbu_cnt)); | |
b1dee947 | 1429 | } |
d9ca5e5b | 1430 | |
6d6f0db0 SR |
1431 | if (this._timing.fbu_rt_start > 0) { |
1432 | var fbu_rt_diff = now - this._timing.fbu_rt_start; | |
1433 | this._timing.fbu_rt_total += fbu_rt_diff; | |
1434 | this._timing.fbu_rt_cnt++; | |
1435 | Log.Info("full FBU round-trip, cur: " + | |
1436 | fbu_rt_diff + ", total: " + | |
1437 | this._timing.fbu_rt_total + ", cnt: " + | |
1438 | this._timing.fbu_rt_cnt + ", avg: " + | |
1439 | (this._timing.fbu_rt_total / this._timing.fbu_rt_cnt)); | |
1440 | this._timing.fbu_rt_start = 0; | |
d9ca5e5b | 1441 | } |
b1dee947 SR |
1442 | } |
1443 | ||
6d6f0db0 SR |
1444 | if (!ret) { return ret; } // need more data |
1445 | } | |
b1dee947 | 1446 | |
6d6f0db0 | 1447 | this._display.flip(); |
b1dee947 | 1448 | |
c7c6cb19 | 1449 | this._onFBUComplete(this); |
b1dee947 | 1450 | |
6d6f0db0 SR |
1451 | return true; // We finished this FBU |
1452 | }, | |
b1dee947 | 1453 | |
6d6f0db0 SR |
1454 | _updateContinuousUpdates: function() { |
1455 | if (!this._enabledContinuousUpdates) { return; } | |
b1dee947 | 1456 | |
6d6f0db0 SR |
1457 | RFB.messages.enableContinuousUpdates(this._sock, true, 0, 0, |
1458 | this._fb_width, this._fb_height); | |
91d5c625 PO |
1459 | }, |
1460 | ||
1461 | _resize: function(width, height) { | |
1462 | this._fb_width = width; | |
1463 | this._fb_height = height; | |
1464 | ||
1465 | this._destBuff = new Uint8Array(this._fb_width * this._fb_height * 4); | |
1466 | ||
1467 | this._display.resize(this._fb_width, this._fb_height); | |
1468 | this._onFBResize(this, this._fb_width, this._fb_height); | |
1469 | ||
1470 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1471 | this._updateContinuousUpdates(); | |
6d6f0db0 SR |
1472 | } |
1473 | }; | |
8db09746 | 1474 | |
6d6f0db0 SR |
1475 | make_properties(RFB, [ |
1476 | ['target', 'wo', 'dom'], // VNC display rendering Canvas object | |
6d6f0db0 | 1477 | ['encrypt', 'rw', 'bool'], // Use TLS/SSL/wss encryption |
6d6f0db0 SR |
1478 | ['local_cursor', 'rw', 'bool'], // Request locally rendered cursor |
1479 | ['shared', 'rw', 'bool'], // Request shared mode | |
1480 | ['view_only', 'rw', 'bool'], // Disable client mouse/keyboard | |
1481 | ['xvp_password_sep', 'rw', 'str'], // Separator for XVP password fields | |
1482 | ['disconnectTimeout', 'rw', 'int'], // Time (s) to wait for disconnection | |
1483 | ['wsProtocols', 'rw', 'arr'], // Protocols to use in the WebSocket connection | |
1484 | ['repeaterID', 'rw', 'str'], // [UltraVNC] RepeaterID to connect to | |
1485 | ['viewportDrag', 'rw', 'bool'], // Move the viewport on mouse drags | |
1486 | ||
1487 | // Callback functions | |
1488 | ['onUpdateState', 'rw', 'func'], // onUpdateState(rfb, state, oldstate): connection state change | |
1489 | ['onNotification', 'rw', 'func'], // onNotification(rfb, msg, level, options): notification for the UI | |
1490 | ['onDisconnected', 'rw', 'func'], // onDisconnected(rfb, reason): disconnection finished | |
1491 | ['onPasswordRequired', 'rw', 'func'], // onPasswordRequired(rfb, msg): VNC password is required | |
1492 | ['onClipboard', 'rw', 'func'], // onClipboard(rfb, text): RFB clipboard contents received | |
1493 | ['onBell', 'rw', 'func'], // onBell(rfb): RFB Bell message received | |
1494 | ['onFBUReceive', 'rw', 'func'], // onFBUReceive(rfb, fbu): RFB FBU received but not yet processed | |
1495 | ['onFBUComplete', 'rw', 'func'], // onFBUComplete(rfb, fbu): RFB FBU received and processed | |
1496 | ['onFBResize', 'rw', 'func'], // onFBResize(rfb, width, height): frame buffer resized | |
1497 | ['onDesktopName', 'rw', 'func'], // onDesktopName(rfb, name): desktop name received | |
1498 | ['onXvpInit', 'rw', 'func'] // onXvpInit(version): XVP extensions active for this connection | |
1499 | ]); | |
1500 | ||
1501 | RFB.prototype.set_local_cursor = function (cursor) { | |
1502 | if (!cursor || (cursor in {'0': 1, 'no': 1, 'false': 1})) { | |
1503 | this._local_cursor = false; | |
1504 | this._display.disableLocalCursor(); //Only show server-side cursor | |
1505 | } else { | |
1506 | if (this._display.get_cursor_uri()) { | |
1507 | this._local_cursor = true; | |
1508 | } else { | |
1509 | Log.Warn("Browser does not support local cursor"); | |
1510 | this._display.disableLocalCursor(); | |
1511 | } | |
1512 | } | |
d86cc2d9 | 1513 | |
6d6f0db0 SR |
1514 | // Need to send an updated list of encodings if we are connected |
1515 | if (this._rfb_connection_state === "connected") { | |
49a81837 | 1516 | this._sendEncodings(); |
6d6f0db0 SR |
1517 | } |
1518 | }; | |
2ba767a7 | 1519 | |
6d6f0db0 SR |
1520 | RFB.prototype.set_view_only = function (view_only) { |
1521 | this._view_only = view_only; | |
8db09746 | 1522 | |
6d6f0db0 SR |
1523 | if (this._rfb_connection_state === "connecting" || |
1524 | this._rfb_connection_state === "connected") { | |
1525 | if (view_only) { | |
1526 | this._keyboard.ungrab(); | |
1527 | this._mouse.ungrab(); | |
1528 | } else { | |
1529 | this._keyboard.grab(); | |
1530 | this._mouse.grab(); | |
1531 | } | |
1532 | } | |
1533 | }; | |
76a86ff5 | 1534 | |
6d6f0db0 SR |
1535 | RFB.prototype.get_display = function () { return this._display; }; |
1536 | RFB.prototype.get_keyboard = function () { return this._keyboard; }; | |
1537 | RFB.prototype.get_mouse = function () { return this._mouse; }; | |
76a86ff5 | 1538 | |
6d6f0db0 SR |
1539 | // Class Methods |
1540 | RFB.messages = { | |
1541 | keyEvent: function (sock, keysym, down) { | |
1542 | var buff = sock._sQ; | |
1543 | var offset = sock._sQlen; | |
8db09746 | 1544 | |
6d6f0db0 SR |
1545 | buff[offset] = 4; // msg-type |
1546 | buff[offset + 1] = down; | |
b1dee947 | 1547 | |
6d6f0db0 SR |
1548 | buff[offset + 2] = 0; |
1549 | buff[offset + 3] = 0; | |
fb49f91b | 1550 | |
6d6f0db0 SR |
1551 | buff[offset + 4] = (keysym >> 24); |
1552 | buff[offset + 5] = (keysym >> 16); | |
1553 | buff[offset + 6] = (keysym >> 8); | |
1554 | buff[offset + 7] = keysym; | |
b1dee947 | 1555 | |
6d6f0db0 SR |
1556 | sock._sQlen += 8; |
1557 | sock.flush(); | |
1558 | }, | |
ef1e8bab | 1559 | |
6d6f0db0 SR |
1560 | QEMUExtendedKeyEvent: function (sock, keysym, down, keycode) { |
1561 | function getRFBkeycode(xt_scancode) { | |
1562 | var upperByte = (keycode >> 8); | |
1563 | var lowerByte = (keycode & 0x00ff); | |
1564 | if (upperByte === 0xe0 && lowerByte < 0x7f) { | |
1565 | lowerByte = lowerByte | 0x80; | |
1566 | return lowerByte; | |
ef1e8bab | 1567 | } |
6d6f0db0 | 1568 | return xt_scancode; |
ef1e8bab | 1569 | } |
b1dee947 | 1570 | |
6d6f0db0 SR |
1571 | var buff = sock._sQ; |
1572 | var offset = sock._sQlen; | |
8f06673a | 1573 | |
6d6f0db0 SR |
1574 | buff[offset] = 255; // msg-type |
1575 | buff[offset + 1] = 0; // sub msg-type | |
8f06673a | 1576 | |
6d6f0db0 SR |
1577 | buff[offset + 2] = (down >> 8); |
1578 | buff[offset + 3] = down; | |
8f06673a | 1579 | |
6d6f0db0 SR |
1580 | buff[offset + 4] = (keysym >> 24); |
1581 | buff[offset + 5] = (keysym >> 16); | |
1582 | buff[offset + 6] = (keysym >> 8); | |
1583 | buff[offset + 7] = keysym; | |
8f06673a | 1584 | |
6d6f0db0 | 1585 | var RFBkeycode = getRFBkeycode(keycode); |
8f06673a | 1586 | |
6d6f0db0 SR |
1587 | buff[offset + 8] = (RFBkeycode >> 24); |
1588 | buff[offset + 9] = (RFBkeycode >> 16); | |
1589 | buff[offset + 10] = (RFBkeycode >> 8); | |
1590 | buff[offset + 11] = RFBkeycode; | |
8f06673a | 1591 | |
6d6f0db0 SR |
1592 | sock._sQlen += 12; |
1593 | sock.flush(); | |
1594 | }, | |
8f06673a | 1595 | |
6d6f0db0 SR |
1596 | pointerEvent: function (sock, x, y, mask) { |
1597 | var buff = sock._sQ; | |
1598 | var offset = sock._sQlen; | |
8f06673a | 1599 | |
6d6f0db0 | 1600 | buff[offset] = 5; // msg-type |
9ff86fb7 | 1601 | |
6d6f0db0 | 1602 | buff[offset + 1] = mask; |
9ff86fb7 | 1603 | |
6d6f0db0 SR |
1604 | buff[offset + 2] = x >> 8; |
1605 | buff[offset + 3] = x; | |
9ff86fb7 | 1606 | |
6d6f0db0 SR |
1607 | buff[offset + 4] = y >> 8; |
1608 | buff[offset + 5] = y; | |
9ff86fb7 | 1609 | |
6d6f0db0 SR |
1610 | sock._sQlen += 6; |
1611 | sock.flush(); | |
1612 | }, | |
9ff86fb7 | 1613 | |
6d6f0db0 SR |
1614 | // TODO(directxman12): make this unicode compatible? |
1615 | clientCutText: function (sock, text) { | |
1616 | var buff = sock._sQ; | |
1617 | var offset = sock._sQlen; | |
b1dee947 | 1618 | |
6d6f0db0 | 1619 | buff[offset] = 6; // msg-type |
9ff86fb7 | 1620 | |
6d6f0db0 SR |
1621 | buff[offset + 1] = 0; // padding |
1622 | buff[offset + 2] = 0; // padding | |
1623 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1624 | |
6d6f0db0 | 1625 | var n = text.length; |
9ff86fb7 | 1626 | |
6d6f0db0 SR |
1627 | buff[offset + 4] = n >> 24; |
1628 | buff[offset + 5] = n >> 16; | |
1629 | buff[offset + 6] = n >> 8; | |
1630 | buff[offset + 7] = n; | |
9ff86fb7 | 1631 | |
6d6f0db0 SR |
1632 | for (var i = 0; i < n; i++) { |
1633 | buff[offset + 8 + i] = text.charCodeAt(i); | |
1634 | } | |
9ff86fb7 | 1635 | |
6d6f0db0 SR |
1636 | sock._sQlen += 8 + n; |
1637 | sock.flush(); | |
1638 | }, | |
1639 | ||
1640 | setDesktopSize: function (sock, width, height, id, flags) { | |
1641 | var buff = sock._sQ; | |
1642 | var offset = sock._sQlen; | |
1643 | ||
1644 | buff[offset] = 251; // msg-type | |
1645 | buff[offset + 1] = 0; // padding | |
1646 | buff[offset + 2] = width >> 8; // width | |
1647 | buff[offset + 3] = width; | |
1648 | buff[offset + 4] = height >> 8; // height | |
1649 | buff[offset + 5] = height; | |
1650 | ||
1651 | buff[offset + 6] = 1; // number-of-screens | |
1652 | buff[offset + 7] = 0; // padding | |
1653 | ||
1654 | // screen array | |
1655 | buff[offset + 8] = id >> 24; // id | |
1656 | buff[offset + 9] = id >> 16; | |
1657 | buff[offset + 10] = id >> 8; | |
1658 | buff[offset + 11] = id; | |
1659 | buff[offset + 12] = 0; // x-position | |
1660 | buff[offset + 13] = 0; | |
1661 | buff[offset + 14] = 0; // y-position | |
1662 | buff[offset + 15] = 0; | |
1663 | buff[offset + 16] = width >> 8; // width | |
1664 | buff[offset + 17] = width; | |
1665 | buff[offset + 18] = height >> 8; // height | |
1666 | buff[offset + 19] = height; | |
1667 | buff[offset + 20] = flags >> 24; // flags | |
1668 | buff[offset + 21] = flags >> 16; | |
1669 | buff[offset + 22] = flags >> 8; | |
1670 | buff[offset + 23] = flags; | |
1671 | ||
1672 | sock._sQlen += 24; | |
1673 | sock.flush(); | |
1674 | }, | |
1675 | ||
1676 | clientFence: function (sock, flags, payload) { | |
1677 | var buff = sock._sQ; | |
1678 | var offset = sock._sQlen; | |
1679 | ||
1680 | buff[offset] = 248; // msg-type | |
1681 | ||
1682 | buff[offset + 1] = 0; // padding | |
1683 | buff[offset + 2] = 0; // padding | |
1684 | buff[offset + 3] = 0; // padding | |
1685 | ||
1686 | buff[offset + 4] = flags >> 24; // flags | |
1687 | buff[offset + 5] = flags >> 16; | |
1688 | buff[offset + 6] = flags >> 8; | |
1689 | buff[offset + 7] = flags; | |
1690 | ||
1691 | var n = payload.length; | |
1692 | ||
1693 | buff[offset + 8] = n; // length | |
1694 | ||
1695 | for (var i = 0; i < n; i++) { | |
1696 | buff[offset + 9 + i] = payload.charCodeAt(i); | |
1697 | } | |
a7a89626 | 1698 | |
6d6f0db0 SR |
1699 | sock._sQlen += 9 + n; |
1700 | sock.flush(); | |
1701 | }, | |
3df13262 | 1702 | |
6d6f0db0 SR |
1703 | enableContinuousUpdates: function (sock, enable, x, y, width, height) { |
1704 | var buff = sock._sQ; | |
1705 | var offset = sock._sQlen; | |
3df13262 | 1706 | |
6d6f0db0 SR |
1707 | buff[offset] = 150; // msg-type |
1708 | buff[offset + 1] = enable; // enable-flag | |
76a86ff5 | 1709 | |
6d6f0db0 SR |
1710 | buff[offset + 2] = x >> 8; // x |
1711 | buff[offset + 3] = x; | |
1712 | buff[offset + 4] = y >> 8; // y | |
1713 | buff[offset + 5] = y; | |
1714 | buff[offset + 6] = width >> 8; // width | |
1715 | buff[offset + 7] = width; | |
1716 | buff[offset + 8] = height >> 8; // height | |
1717 | buff[offset + 9] = height; | |
76a86ff5 | 1718 | |
6d6f0db0 SR |
1719 | sock._sQlen += 10; |
1720 | sock.flush(); | |
1721 | }, | |
76a86ff5 | 1722 | |
5a5f5ada | 1723 | pixelFormat: function (sock, depth, true_color) { |
6d6f0db0 SR |
1724 | var buff = sock._sQ; |
1725 | var offset = sock._sQlen; | |
ae116051 | 1726 | |
5a5f5ada PO |
1727 | var bpp, bits; |
1728 | ||
1729 | if (depth > 16) { | |
1730 | bpp = 32; | |
1731 | } else if (depth > 8) { | |
1732 | bpp = 16; | |
1733 | } else { | |
1734 | bpp = 8; | |
1735 | } | |
1736 | ||
1737 | bits = Math.floor(depth/3); | |
1738 | ||
6d6f0db0 | 1739 | buff[offset] = 0; // msg-type |
9ff86fb7 | 1740 | |
6d6f0db0 SR |
1741 | buff[offset + 1] = 0; // padding |
1742 | buff[offset + 2] = 0; // padding | |
1743 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1744 | |
5a5f5ada PO |
1745 | buff[offset + 4] = bpp; // bits-per-pixel |
1746 | buff[offset + 5] = depth; // depth | |
6d6f0db0 SR |
1747 | buff[offset + 6] = 0; // little-endian |
1748 | buff[offset + 7] = true_color ? 1 : 0; // true-color | |
9ff86fb7 | 1749 | |
6d6f0db0 | 1750 | buff[offset + 8] = 0; // red-max |
5a5f5ada | 1751 | buff[offset + 9] = (1 << bits) - 1; // red-max |
9ff86fb7 | 1752 | |
6d6f0db0 | 1753 | buff[offset + 10] = 0; // green-max |
5a5f5ada | 1754 | buff[offset + 11] = (1 << bits) - 1; // green-max |
9ff86fb7 | 1755 | |
6d6f0db0 | 1756 | buff[offset + 12] = 0; // blue-max |
5a5f5ada | 1757 | buff[offset + 13] = (1 << bits) - 1; // blue-max |
9ff86fb7 | 1758 | |
5a5f5ada PO |
1759 | buff[offset + 14] = bits * 2; // red-shift |
1760 | buff[offset + 15] = bits * 1; // green-shift | |
1761 | buff[offset + 16] = bits * 0; // blue-shift | |
9ff86fb7 | 1762 | |
6d6f0db0 SR |
1763 | buff[offset + 17] = 0; // padding |
1764 | buff[offset + 18] = 0; // padding | |
1765 | buff[offset + 19] = 0; // padding | |
9ff86fb7 | 1766 | |
6d6f0db0 SR |
1767 | sock._sQlen += 20; |
1768 | sock.flush(); | |
1769 | }, | |
9ff86fb7 | 1770 | |
49a81837 | 1771 | clientEncodings: function (sock, encodings) { |
6d6f0db0 SR |
1772 | var buff = sock._sQ; |
1773 | var offset = sock._sQlen; | |
b1dee947 | 1774 | |
6d6f0db0 SR |
1775 | buff[offset] = 2; // msg-type |
1776 | buff[offset + 1] = 0; // padding | |
b1dee947 | 1777 | |
49a81837 PO |
1778 | buff[offset + 2] = encodings.length >> 8; |
1779 | buff[offset + 3] = encodings.length; | |
9ff86fb7 | 1780 | |
49a81837 | 1781 | var i, j = offset + 4; |
6d6f0db0 | 1782 | for (i = 0; i < encodings.length; i++) { |
49a81837 PO |
1783 | var enc = encodings[i]; |
1784 | buff[j] = enc >> 24; | |
1785 | buff[j + 1] = enc >> 16; | |
1786 | buff[j + 2] = enc >> 8; | |
1787 | buff[j + 3] = enc; | |
a7a89626 | 1788 | |
49a81837 PO |
1789 | j += 4; |
1790 | } | |
a7a89626 | 1791 | |
6d6f0db0 SR |
1792 | sock._sQlen += j - offset; |
1793 | sock.flush(); | |
1794 | }, | |
a679a97d | 1795 | |
6d6f0db0 SR |
1796 | fbUpdateRequest: function (sock, incremental, x, y, w, h) { |
1797 | var buff = sock._sQ; | |
1798 | var offset = sock._sQlen; | |
9ff86fb7 | 1799 | |
6d6f0db0 SR |
1800 | if (typeof(x) === "undefined") { x = 0; } |
1801 | if (typeof(y) === "undefined") { y = 0; } | |
b1dee947 | 1802 | |
6d6f0db0 SR |
1803 | buff[offset] = 3; // msg-type |
1804 | buff[offset + 1] = incremental ? 1 : 0; | |
9ff86fb7 | 1805 | |
6d6f0db0 SR |
1806 | buff[offset + 2] = (x >> 8) & 0xFF; |
1807 | buff[offset + 3] = x & 0xFF; | |
9ff86fb7 | 1808 | |
6d6f0db0 SR |
1809 | buff[offset + 4] = (y >> 8) & 0xFF; |
1810 | buff[offset + 5] = y & 0xFF; | |
9ff86fb7 | 1811 | |
6d6f0db0 SR |
1812 | buff[offset + 6] = (w >> 8) & 0xFF; |
1813 | buff[offset + 7] = w & 0xFF; | |
9ff86fb7 | 1814 | |
6d6f0db0 SR |
1815 | buff[offset + 8] = (h >> 8) & 0xFF; |
1816 | buff[offset + 9] = h & 0xFF; | |
b1dee947 | 1817 | |
6d6f0db0 SR |
1818 | sock._sQlen += 10; |
1819 | sock.flush(); | |
1820 | } | |
1821 | }; | |
b1dee947 | 1822 | |
6d6f0db0 SR |
1823 | RFB.genDES = function (password, challenge) { |
1824 | var passwd = []; | |
1825 | for (var i = 0; i < password.length; i++) { | |
1826 | passwd.push(password.charCodeAt(i)); | |
1827 | } | |
1828 | return (new DES(passwd)).encrypt(challenge); | |
1829 | }; | |
b1dee947 | 1830 | |
6d6f0db0 SR |
1831 | RFB.encodingHandlers = { |
1832 | RAW: function () { | |
1833 | if (this._FBU.lines === 0) { | |
1834 | this._FBU.lines = this._FBU.height; | |
1835 | } | |
a7a89626 | 1836 | |
5a5f5ada PO |
1837 | var pixelSize = this._fb_depth == 8 ? 1 : 4; |
1838 | this._FBU.bytes = this._FBU.width * pixelSize; // at least a line | |
6d6f0db0 SR |
1839 | if (this._sock.rQwait("RAW", this._FBU.bytes)) { return false; } |
1840 | var cur_y = this._FBU.y + (this._FBU.height - this._FBU.lines); | |
1841 | var curr_height = Math.min(this._FBU.lines, | |
5a5f5ada PO |
1842 | Math.floor(this._sock.rQlen() / (this._FBU.width * pixelSize))); |
1843 | var data = this._sock.get_rQ(); | |
1844 | var index = this._sock.get_rQi(); | |
1845 | if (this._fb_depth == 8) { | |
1846 | var pixels = this._FBU.width * curr_height | |
1847 | var newdata = new Uint8Array(pixels * 4); | |
1848 | var i; | |
1849 | for (i = 0;i < pixels;i++) { | |
1850 | newdata[i * 4 + 0] = ((data[index + i] >> 0) & 0x3) * 255 / 3; | |
1851 | newdata[i * 4 + 1] = ((data[index + i] >> 2) & 0x3) * 255 / 3; | |
1852 | newdata[i * 4 + 2] = ((data[index + i] >> 4) & 0x3) * 255 / 3; | |
1853 | newdata[i * 4 + 4] = 0; | |
1854 | } | |
1855 | data = newdata; | |
1856 | index = 0; | |
1857 | } | |
6d6f0db0 | 1858 | this._display.blitImage(this._FBU.x, cur_y, this._FBU.width, |
5a5f5ada PO |
1859 | curr_height, data, index); |
1860 | this._sock.rQskipBytes(this._FBU.width * curr_height * pixelSize); | |
6d6f0db0 SR |
1861 | this._FBU.lines -= curr_height; |
1862 | ||
1863 | if (this._FBU.lines > 0) { | |
5a5f5ada | 1864 | this._FBU.bytes = this._FBU.width * pixelSize; // At least another line |
6d6f0db0 SR |
1865 | } else { |
1866 | this._FBU.rects--; | |
1867 | this._FBU.bytes = 0; | |
1868 | } | |
b1dee947 | 1869 | |
6d6f0db0 SR |
1870 | return true; |
1871 | }, | |
1872 | ||
1873 | COPYRECT: function () { | |
1874 | this._FBU.bytes = 4; | |
1875 | if (this._sock.rQwait("COPYRECT", 4)) { return false; } | |
1876 | this._display.copyImage(this._sock.rQshift16(), this._sock.rQshift16(), | |
1877 | this._FBU.x, this._FBU.y, this._FBU.width, | |
1878 | this._FBU.height); | |
1879 | ||
1880 | this._FBU.rects--; | |
1881 | this._FBU.bytes = 0; | |
1882 | return true; | |
1883 | }, | |
1884 | ||
1885 | RRE: function () { | |
1886 | var color; | |
1887 | if (this._FBU.subrects === 0) { | |
26586b9d PO |
1888 | this._FBU.bytes = 4 + 4; |
1889 | if (this._sock.rQwait("RRE", 4 + 4)) { return false; } | |
6d6f0db0 | 1890 | this._FBU.subrects = this._sock.rQshift32(); |
26586b9d | 1891 | color = this._sock.rQshiftBytes(4); // Background |
6d6f0db0 SR |
1892 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, color); |
1893 | } | |
b1dee947 | 1894 | |
26586b9d PO |
1895 | while (this._FBU.subrects > 0 && this._sock.rQlen() >= (4 + 8)) { |
1896 | color = this._sock.rQshiftBytes(4); | |
6d6f0db0 SR |
1897 | var x = this._sock.rQshift16(); |
1898 | var y = this._sock.rQshift16(); | |
1899 | var width = this._sock.rQshift16(); | |
1900 | var height = this._sock.rQshift16(); | |
1901 | this._display.fillRect(this._FBU.x + x, this._FBU.y + y, width, height, color); | |
1902 | this._FBU.subrects--; | |
1903 | } | |
f00193e0 | 1904 | |
6d6f0db0 SR |
1905 | if (this._FBU.subrects > 0) { |
1906 | var chunk = Math.min(this._rre_chunk_sz, this._FBU.subrects); | |
26586b9d | 1907 | this._FBU.bytes = (4 + 8) * chunk; |
6d6f0db0 | 1908 | } else { |
b1dee947 SR |
1909 | this._FBU.rects--; |
1910 | this._FBU.bytes = 0; | |
6d6f0db0 | 1911 | } |
b1dee947 | 1912 | |
6d6f0db0 SR |
1913 | return true; |
1914 | }, | |
b1dee947 | 1915 | |
6d6f0db0 SR |
1916 | HEXTILE: function () { |
1917 | var rQ = this._sock.get_rQ(); | |
1918 | var rQi = this._sock.get_rQi(); | |
b1dee947 | 1919 | |
6d6f0db0 SR |
1920 | if (this._FBU.tiles === 0) { |
1921 | this._FBU.tiles_x = Math.ceil(this._FBU.width / 16); | |
1922 | this._FBU.tiles_y = Math.ceil(this._FBU.height / 16); | |
1923 | this._FBU.total_tiles = this._FBU.tiles_x * this._FBU.tiles_y; | |
1924 | this._FBU.tiles = this._FBU.total_tiles; | |
1925 | } | |
b1dee947 | 1926 | |
6d6f0db0 SR |
1927 | while (this._FBU.tiles > 0) { |
1928 | this._FBU.bytes = 1; | |
1929 | if (this._sock.rQwait("HEXTILE subencoding", this._FBU.bytes)) { return false; } | |
1930 | var subencoding = rQ[rQi]; // Peek | |
1931 | if (subencoding > 30) { // Raw | |
1932 | this._fail("Unexpected server message", | |
1933 | "Illegal hextile subencoding: " + subencoding); | |
1934 | return false; | |
b1dee947 SR |
1935 | } |
1936 | ||
6d6f0db0 SR |
1937 | var subrects = 0; |
1938 | var curr_tile = this._FBU.total_tiles - this._FBU.tiles; | |
1939 | var tile_x = curr_tile % this._FBU.tiles_x; | |
1940 | var tile_y = Math.floor(curr_tile / this._FBU.tiles_x); | |
1941 | var x = this._FBU.x + tile_x * 16; | |
1942 | var y = this._FBU.y + tile_y * 16; | |
1943 | var w = Math.min(16, (this._FBU.x + this._FBU.width) - x); | |
1944 | var h = Math.min(16, (this._FBU.y + this._FBU.height) - y); | |
b1dee947 | 1945 | |
6d6f0db0 SR |
1946 | // Figure out how much we are expecting |
1947 | if (subencoding & 0x01) { // Raw | |
26586b9d | 1948 | this._FBU.bytes += w * h * 4; |
6d6f0db0 SR |
1949 | } else { |
1950 | if (subencoding & 0x02) { // Background | |
26586b9d | 1951 | this._FBU.bytes += 4; |
6d6f0db0 SR |
1952 | } |
1953 | if (subencoding & 0x04) { // Foreground | |
26586b9d | 1954 | this._FBU.bytes += 4; |
6d6f0db0 SR |
1955 | } |
1956 | if (subencoding & 0x08) { // AnySubrects | |
1957 | this._FBU.bytes++; // Since we aren't shifting it off | |
1958 | if (this._sock.rQwait("hextile subrects header", this._FBU.bytes)) { return false; } | |
1959 | subrects = rQ[rQi + this._FBU.bytes - 1]; // Peek | |
1960 | if (subencoding & 0x10) { // SubrectsColoured | |
26586b9d | 1961 | this._FBU.bytes += subrects * (4 + 2); |
6d6f0db0 SR |
1962 | } else { |
1963 | this._FBU.bytes += subrects * 2; | |
b1dee947 SR |
1964 | } |
1965 | } | |
6d6f0db0 | 1966 | } |
b1dee947 | 1967 | |
6d6f0db0 | 1968 | if (this._sock.rQwait("hextile", this._FBU.bytes)) { return false; } |
b1dee947 | 1969 | |
6d6f0db0 SR |
1970 | // We know the encoding and have a whole tile |
1971 | this._FBU.subencoding = rQ[rQi]; | |
1972 | rQi++; | |
1973 | if (this._FBU.subencoding === 0) { | |
1974 | if (this._FBU.lastsubencoding & 0x01) { | |
1975 | // Weird: ignore blanks are RAW | |
1976 | Log.Debug(" Ignoring blank after RAW"); | |
b1dee947 | 1977 | } else { |
6d6f0db0 SR |
1978 | this._display.fillRect(x, y, w, h, this._FBU.background); |
1979 | } | |
1980 | } else if (this._FBU.subencoding & 0x01) { // Raw | |
1981 | this._display.blitImage(x, y, w, h, rQ, rQi); | |
1982 | rQi += this._FBU.bytes - 1; | |
1983 | } else { | |
1984 | if (this._FBU.subencoding & 0x02) { // Background | |
26586b9d PO |
1985 | this._FBU.background = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
1986 | rQi += 4; | |
6d6f0db0 SR |
1987 | } |
1988 | if (this._FBU.subencoding & 0x04) { // Foreground | |
26586b9d PO |
1989 | this._FBU.foreground = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
1990 | rQi += 4; | |
6d6f0db0 | 1991 | } |
b1dee947 | 1992 | |
6d6f0db0 SR |
1993 | this._display.startTile(x, y, w, h, this._FBU.background); |
1994 | if (this._FBU.subencoding & 0x08) { // AnySubrects | |
1995 | subrects = rQ[rQi]; | |
1996 | rQi++; | |
b1dee947 | 1997 | |
6d6f0db0 SR |
1998 | for (var s = 0; s < subrects; s++) { |
1999 | var color; | |
2000 | if (this._FBU.subencoding & 0x10) { // SubrectsColoured | |
26586b9d PO |
2001 | color = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2002 | rQi += 4; | |
6d6f0db0 SR |
2003 | } else { |
2004 | color = this._FBU.foreground; | |
2005 | } | |
2006 | var xy = rQ[rQi]; | |
2007 | rQi++; | |
2008 | var sx = (xy >> 4); | |
2009 | var sy = (xy & 0x0f); | |
a7a89626 | 2010 | |
6d6f0db0 SR |
2011 | var wh = rQ[rQi]; |
2012 | rQi++; | |
2013 | var sw = (wh >> 4) + 1; | |
2014 | var sh = (wh & 0x0f) + 1; | |
a7a89626 | 2015 | |
6d6f0db0 | 2016 | this._display.subTile(sx, sy, sw, sh, color); |
b1dee947 | 2017 | } |
a7a89626 | 2018 | } |
6d6f0db0 | 2019 | this._display.finishTile(); |
a7a89626 | 2020 | } |
6d6f0db0 SR |
2021 | this._sock.set_rQi(rQi); |
2022 | this._FBU.lastsubencoding = this._FBU.subencoding; | |
2023 | this._FBU.bytes = 0; | |
2024 | this._FBU.tiles--; | |
2025 | } | |
d065cad9 | 2026 | |
6d6f0db0 SR |
2027 | if (this._FBU.tiles === 0) { |
2028 | this._FBU.rects--; | |
2029 | } | |
b1dee947 | 2030 | |
6d6f0db0 SR |
2031 | return true; |
2032 | }, | |
b1dee947 | 2033 | |
3e8b26ab | 2034 | TIGHT: function () { |
6d6f0db0 SR |
2035 | this._FBU.bytes = 1; // compression-control byte |
2036 | if (this._sock.rQwait("TIGHT compression-control", this._FBU.bytes)) { return false; } | |
2037 | ||
2038 | var checksum = function (data) { | |
2039 | var sum = 0; | |
2040 | for (var i = 0; i < data.length; i++) { | |
2041 | sum += data[i]; | |
2042 | if (sum > 65536) sum -= 65536; | |
2043 | } | |
2044 | return sum; | |
2045 | }; | |
2046 | ||
2047 | var resetStreams = 0; | |
2048 | var streamId = -1; | |
2049 | var decompress = function (data, expected) { | |
2050 | for (var i = 0; i < 4; i++) { | |
2051 | if ((resetStreams >> i) & 1) { | |
2052 | this._FBU.zlibs[i].reset(); | |
2053 | Log.Info("Reset zlib stream " + i); | |
b1dee947 | 2054 | } |
6d6f0db0 | 2055 | } |
de84e098 | 2056 | |
6d6f0db0 SR |
2057 | //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0); |
2058 | var uncompressed = this._FBU.zlibs[streamId].inflate(data, true, expected); | |
2059 | /*if (uncompressed.status !== 0) { | |
2060 | Log.Error("Invalid data in zlib stream"); | |
2061 | }*/ | |
2062 | ||
2063 | //return uncompressed.data; | |
2064 | return uncompressed; | |
2065 | }.bind(this); | |
2066 | ||
2067 | var indexedToRGBX2Color = function (data, palette, width, height) { | |
2068 | // Convert indexed (palette based) image data to RGB | |
2069 | // TODO: reduce number of calculations inside loop | |
2070 | var dest = this._destBuff; | |
2071 | var w = Math.floor((width + 7) / 8); | |
2072 | var w1 = Math.floor(width / 8); | |
2073 | ||
2074 | /*for (var y = 0; y < height; y++) { | |
2075 | var b, x, dp, sp; | |
2076 | var yoffset = y * width; | |
2077 | var ybitoffset = y * w; | |
2078 | var xoffset, targetbyte; | |
2079 | for (x = 0; x < w1; x++) { | |
d1800d09 SR |
2080 | xoffset = yoffset + x * 8; |
2081 | targetbyte = data[ybitoffset + x]; | |
6d6f0db0 | 2082 | for (b = 7; b >= 0; b--) { |
d1800d09 SR |
2083 | dp = (xoffset + 7 - b) * 3; |
2084 | sp = (targetbyte >> b & 1) * 3; | |
2085 | dest[dp] = palette[sp]; | |
2086 | dest[dp + 1] = palette[sp + 1]; | |
2087 | dest[dp + 2] = palette[sp + 2]; | |
2088 | } | |
6d6f0db0 SR |
2089 | } |
2090 | ||
2091 | xoffset = yoffset + x * 8; | |
2092 | targetbyte = data[ybitoffset + x]; | |
2093 | for (b = 7; b >= 8 - width % 8; b--) { | |
2094 | dp = (xoffset + 7 - b) * 3; | |
2095 | sp = (targetbyte >> b & 1) * 3; | |
2096 | dest[dp] = palette[sp]; | |
2097 | dest[dp + 1] = palette[sp + 1]; | |
2098 | dest[dp + 2] = palette[sp + 2]; | |
2099 | } | |
2100 | }*/ | |
d1800d09 | 2101 | |
6d6f0db0 SR |
2102 | for (var y = 0; y < height; y++) { |
2103 | var b, x, dp, sp; | |
2104 | for (x = 0; x < w1; x++) { | |
2105 | for (b = 7; b >= 0; b--) { | |
d1800d09 SR |
2106 | dp = (y * width + x * 8 + 7 - b) * 4; |
2107 | sp = (data[y * w + x] >> b & 1) * 3; | |
2108 | dest[dp] = palette[sp]; | |
2109 | dest[dp + 1] = palette[sp + 1]; | |
2110 | dest[dp + 2] = palette[sp + 2]; | |
2111 | dest[dp + 3] = 255; | |
e16ad2fd JM |
2112 | } |
2113 | } | |
b1dee947 | 2114 | |
6d6f0db0 SR |
2115 | for (b = 7; b >= 8 - width % 8; b--) { |
2116 | dp = (y * width + x * 8 + 7 - b) * 4; | |
2117 | sp = (data[y * w + x] >> b & 1) * 3; | |
2118 | dest[dp] = palette[sp]; | |
2119 | dest[dp + 1] = palette[sp + 1]; | |
2120 | dest[dp + 2] = palette[sp + 2]; | |
2121 | dest[dp + 3] = 255; | |
d1800d09 | 2122 | } |
6d6f0db0 | 2123 | } |
d1800d09 | 2124 | |
6d6f0db0 SR |
2125 | return dest; |
2126 | }.bind(this); | |
2127 | ||
2128 | var indexedToRGBX = function (data, palette, width, height) { | |
2129 | // Convert indexed (palette based) image data to RGB | |
2130 | var dest = this._destBuff; | |
2131 | var total = width * height * 4; | |
2132 | for (var i = 0, j = 0; i < total; i += 4, j++) { | |
2133 | var sp = data[j] * 3; | |
2134 | dest[i] = palette[sp]; | |
2135 | dest[i + 1] = palette[sp + 1]; | |
2136 | dest[i + 2] = palette[sp + 2]; | |
2137 | dest[i + 3] = 255; | |
2138 | } | |
2139 | ||
2140 | return dest; | |
2141 | }.bind(this); | |
2142 | ||
2143 | var rQi = this._sock.get_rQi(); | |
2144 | var rQ = this._sock.rQwhole(); | |
2145 | var cmode, data; | |
2146 | var cl_header, cl_data; | |
2147 | ||
2148 | var handlePalette = function () { | |
2149 | var numColors = rQ[rQi + 2] + 1; | |
26586b9d | 2150 | var paletteSize = numColors * 3; |
6d6f0db0 SR |
2151 | this._FBU.bytes += paletteSize; |
2152 | if (this._sock.rQwait("TIGHT palette " + cmode, this._FBU.bytes)) { return false; } | |
2153 | ||
2154 | var bpp = (numColors <= 2) ? 1 : 8; | |
2155 | var rowSize = Math.floor((this._FBU.width * bpp + 7) / 8); | |
2156 | var raw = false; | |
2157 | if (rowSize * this._FBU.height < 12) { | |
2158 | raw = true; | |
2159 | cl_header = 0; | |
2160 | cl_data = rowSize * this._FBU.height; | |
2161 | //clength = [0, rowSize * this._FBU.height]; | |
2162 | } else { | |
2163 | // begin inline getTightCLength (returning two-item arrays is bad for performance with GC) | |
2164 | var cl_offset = rQi + 3 + paletteSize; | |
2165 | cl_header = 1; | |
2166 | cl_data = 0; | |
2167 | cl_data += rQ[cl_offset] & 0x7f; | |
2168 | if (rQ[cl_offset] & 0x80) { | |
2169 | cl_header++; | |
2170 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2171 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2172 | cl_header++; |
6d6f0db0 | 2173 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2174 | } |
e16ad2fd | 2175 | } |
6d6f0db0 SR |
2176 | // end inline getTightCLength |
2177 | } | |
b1dee947 | 2178 | |
6d6f0db0 SR |
2179 | this._FBU.bytes += cl_header + cl_data; |
2180 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2181 | |
6d6f0db0 SR |
2182 | // Shift ctl, filter id, num colors, palette entries, and clength off |
2183 | this._sock.rQskipBytes(3); | |
2184 | //var palette = this._sock.rQshiftBytes(paletteSize); | |
2185 | this._sock.rQshiftTo(this._paletteBuff, paletteSize); | |
2186 | this._sock.rQskipBytes(cl_header); | |
b1dee947 | 2187 | |
6d6f0db0 SR |
2188 | if (raw) { |
2189 | data = this._sock.rQshiftBytes(cl_data); | |
2190 | } else { | |
2191 | data = decompress(this._sock.rQshiftBytes(cl_data), rowSize * this._FBU.height); | |
2192 | } | |
b1dee947 | 2193 | |
6d6f0db0 SR |
2194 | // Convert indexed (palette based) image data to RGB |
2195 | var rgbx; | |
2196 | if (numColors == 2) { | |
2197 | rgbx = indexedToRGBX2Color(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2198 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2199 | } else { | |
2200 | rgbx = indexedToRGBX(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2201 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2202 | } | |
b1dee947 | 2203 | |
b1dee947 | 2204 | |
6d6f0db0 SR |
2205 | return true; |
2206 | }.bind(this); | |
2207 | ||
2208 | var handleCopy = function () { | |
2209 | var raw = false; | |
26586b9d | 2210 | var uncompressedSize = this._FBU.width * this._FBU.height * 3; |
6d6f0db0 SR |
2211 | if (uncompressedSize < 12) { |
2212 | raw = true; | |
2213 | cl_header = 0; | |
2214 | cl_data = uncompressedSize; | |
2215 | } else { | |
2216 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2217 | var cl_offset = rQi + 1; | |
2218 | cl_header = 1; | |
2219 | cl_data = 0; | |
2220 | cl_data += rQ[cl_offset] & 0x7f; | |
2221 | if (rQ[cl_offset] & 0x80) { | |
2222 | cl_header++; | |
2223 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2224 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2225 | cl_header++; |
6d6f0db0 | 2226 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2227 | } |
b1dee947 | 2228 | } |
6d6f0db0 SR |
2229 | // end inline getTightCLength |
2230 | } | |
2231 | this._FBU.bytes = 1 + cl_header + cl_data; | |
2232 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2233 | |
6d6f0db0 SR |
2234 | // Shift ctl, clength off |
2235 | this._sock.rQshiftBytes(1 + cl_header); | |
b1dee947 | 2236 | |
6d6f0db0 SR |
2237 | if (raw) { |
2238 | data = this._sock.rQshiftBytes(cl_data); | |
2239 | } else { | |
2240 | data = decompress(this._sock.rQshiftBytes(cl_data), uncompressedSize); | |
2241 | } | |
b1dee947 | 2242 | |
6d6f0db0 | 2243 | this._display.blitRgbImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, data, 0, false); |
b1dee947 | 2244 | |
6d6f0db0 SR |
2245 | return true; |
2246 | }.bind(this); | |
b1dee947 | 2247 | |
6d6f0db0 | 2248 | var ctl = this._sock.rQpeek8(); |
b1dee947 | 2249 | |
6d6f0db0 SR |
2250 | // Keep tight reset bits |
2251 | resetStreams = ctl & 0xF; | |
b1dee947 | 2252 | |
6d6f0db0 SR |
2253 | // Figure out filter |
2254 | ctl = ctl >> 4; | |
2255 | streamId = ctl & 0x3; | |
b1dee947 | 2256 | |
6d6f0db0 SR |
2257 | if (ctl === 0x08) cmode = "fill"; |
2258 | else if (ctl === 0x09) cmode = "jpeg"; | |
2259 | else if (ctl === 0x0A) cmode = "png"; | |
2260 | else if (ctl & 0x04) cmode = "filter"; | |
2261 | else if (ctl < 0x04) cmode = "copy"; | |
2262 | else return this._fail("Unexpected server message", | |
2263 | "Illegal tight compression received, " + | |
2264 | "ctl: " + ctl); | |
b1dee947 | 2265 | |
6d6f0db0 | 2266 | switch (cmode) { |
26586b9d | 2267 | // fill use depth because TPIXELs drop the padding byte |
6d6f0db0 | 2268 | case "fill": // TPIXEL |
26586b9d | 2269 | this._FBU.bytes += 3; |
6d6f0db0 SR |
2270 | break; |
2271 | case "jpeg": // max clength | |
2272 | this._FBU.bytes += 3; | |
2273 | break; | |
2274 | case "png": // max clength | |
2275 | this._FBU.bytes += 3; | |
2276 | break; | |
2277 | case "filter": // filter id + num colors if palette | |
2278 | this._FBU.bytes += 2; | |
2279 | break; | |
2280 | case "copy": | |
2281 | break; | |
2282 | } | |
d065cad9 | 2283 | |
6d6f0db0 | 2284 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } |
b1dee947 | 2285 | |
6d6f0db0 SR |
2286 | // Determine FBU.bytes |
2287 | switch (cmode) { | |
2288 | case "fill": | |
2289 | // skip ctl byte | |
2290 | 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); | |
2291 | this._sock.rQskipBytes(4); | |
2292 | break; | |
2293 | case "png": | |
2294 | case "jpeg": | |
2295 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2296 | var cl_offset = rQi + 1; | |
2297 | cl_header = 1; | |
2298 | cl_data = 0; | |
2299 | cl_data += rQ[cl_offset] & 0x7f; | |
2300 | if (rQ[cl_offset] & 0x80) { | |
2301 | cl_header++; | |
2302 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2303 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2304 | cl_header++; |
6d6f0db0 | 2305 | cl_data += rQ[cl_offset + 2] << 14; |
b1dee947 | 2306 | } |
6d6f0db0 SR |
2307 | } |
2308 | // end inline getTightCLength | |
2309 | this._FBU.bytes = 1 + cl_header + cl_data; // ctl + clength size + jpeg-data | |
2310 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
798340b9 | 2311 | |
6d6f0db0 SR |
2312 | // We have everything, render it |
2313 | this._sock.rQskipBytes(1 + cl_header); // shift off clt + compact length | |
2314 | data = this._sock.rQshiftBytes(cl_data); | |
2315 | this._display.imageRect(this._FBU.x, this._FBU.y, "image/" + cmode, data); | |
2316 | break; | |
2317 | case "filter": | |
2318 | var filterId = rQ[rQi + 1]; | |
2319 | if (filterId === 1) { | |
2320 | if (!handlePalette()) { return false; } | |
b0ec6509 | 2321 | } else { |
6d6f0db0 SR |
2322 | // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter |
2323 | // Filter 2, Gradient is valid but not use if jpeg is enabled | |
2324 | this._fail("Unexpected server message", | |
2325 | "Unsupported tight subencoding received, " + | |
2326 | "filter: " + filterId); | |
b0ec6509 | 2327 | } |
6d6f0db0 SR |
2328 | break; |
2329 | case "copy": | |
2330 | if (!handleCopy()) { return false; } | |
2331 | break; | |
2332 | } | |
b0ec6509 | 2333 | |
6d6f0db0 SR |
2334 | |
2335 | this._FBU.bytes = 0; | |
2336 | this._FBU.rects--; | |
2337 | ||
2338 | return true; | |
2339 | }, | |
2340 | ||
6d6f0db0 SR |
2341 | last_rect: function () { |
2342 | this._FBU.rects = 0; | |
2343 | return true; | |
2344 | }, | |
2345 | ||
6d6f0db0 SR |
2346 | ExtendedDesktopSize: function () { |
2347 | this._FBU.bytes = 1; | |
2348 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2349 | ||
2350 | this._supportsSetDesktopSize = true; | |
2351 | var number_of_screens = this._sock.rQpeek8(); | |
2352 | ||
2353 | this._FBU.bytes = 4 + (number_of_screens * 16); | |
2354 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2355 | ||
2356 | this._sock.rQskipBytes(1); // number-of-screens | |
2357 | this._sock.rQskipBytes(3); // padding | |
2358 | ||
2359 | for (var i = 0; i < number_of_screens; i += 1) { | |
2360 | // Save the id and flags of the first screen | |
2361 | if (i === 0) { | |
2362 | this._screen_id = this._sock.rQshiftBytes(4); // id | |
2363 | this._sock.rQskipBytes(2); // x-position | |
2364 | this._sock.rQskipBytes(2); // y-position | |
2365 | this._sock.rQskipBytes(2); // width | |
2366 | this._sock.rQskipBytes(2); // height | |
2367 | this._screen_flags = this._sock.rQshiftBytes(4); // flags | |
2368 | } else { | |
2369 | this._sock.rQskipBytes(16); | |
798340b9 | 2370 | } |
6d6f0db0 | 2371 | } |
b0ec6509 | 2372 | |
6d6f0db0 SR |
2373 | /* |
2374 | * The x-position indicates the reason for the change: | |
2375 | * | |
2376 | * 0 - server resized on its own | |
2377 | * 1 - this client requested the resize | |
2378 | * 2 - another client requested the resize | |
2379 | */ | |
b0ec6509 | 2380 | |
6d6f0db0 SR |
2381 | // We need to handle errors when we requested the resize. |
2382 | if (this._FBU.x === 1 && this._FBU.y !== 0) { | |
2383 | var msg = ""; | |
2384 | // The y-position indicates the status code from the server | |
2385 | switch (this._FBU.y) { | |
2386 | case 1: | |
2387 | msg = "Resize is administratively prohibited"; | |
2388 | break; | |
2389 | case 2: | |
2390 | msg = "Out of resources"; | |
2391 | break; | |
2392 | case 3: | |
2393 | msg = "Invalid screen layout"; | |
2394 | break; | |
2395 | default: | |
2396 | msg = "Unknown reason"; | |
2397 | break; | |
2398 | } | |
2399 | this._notification("Server did not accept the resize request: " | |
2400 | + msg, 'normal'); | |
910fd3af PO |
2401 | } else { |
2402 | this._resize(this._FBU.width, this._FBU.height); | |
6d6f0db0 | 2403 | } |
b1dee947 | 2404 | |
91d5c625 PO |
2405 | this._FBU.bytes = 0; |
2406 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2407 | return true; |
2408 | }, | |
b1dee947 | 2409 | |
6d6f0db0 | 2410 | DesktopSize: function () { |
91d5c625 PO |
2411 | this._resize(this._FBU.width, this._FBU.height); |
2412 | this._FBU.bytes = 0; | |
2413 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2414 | return true; |
2415 | }, | |
8db09746 | 2416 | |
6d6f0db0 SR |
2417 | Cursor: function () { |
2418 | Log.Debug(">> set_cursor"); | |
2419 | var x = this._FBU.x; // hotspot-x | |
2420 | var y = this._FBU.y; // hotspot-y | |
2421 | var w = this._FBU.width; | |
2422 | var h = this._FBU.height; | |
8db09746 | 2423 | |
26586b9d | 2424 | var pixelslength = w * h * 4; |
6d6f0db0 | 2425 | var masklength = Math.floor((w + 7) / 8) * h; |
a7a89626 | 2426 | |
6d6f0db0 SR |
2427 | this._FBU.bytes = pixelslength + masklength; |
2428 | if (this._sock.rQwait("cursor encoding", this._FBU.bytes)) { return false; } | |
b1dee947 | 2429 | |
6d6f0db0 SR |
2430 | this._display.changeCursor(this._sock.rQshiftBytes(pixelslength), |
2431 | this._sock.rQshiftBytes(masklength), | |
2432 | x, y, w, h); | |
b1dee947 | 2433 | |
6d6f0db0 SR |
2434 | this._FBU.bytes = 0; |
2435 | this._FBU.rects--; | |
8f06673a | 2436 | |
6d6f0db0 SR |
2437 | Log.Debug("<< set_cursor"); |
2438 | return true; | |
2439 | }, | |
25e4928f | 2440 | |
6d6f0db0 SR |
2441 | QEMUExtendedKeyEvent: function () { |
2442 | this._FBU.rects--; | |
25e4928f | 2443 | |
2bf4cf5a PO |
2444 | // Old Safari doesn't support creating keyboard events |
2445 | try { | |
2446 | var keyboardEvent = document.createEvent("keyboardEvent"); | |
2447 | if (keyboardEvent.code !== undefined) { | |
2448 | this._qemuExtKeyEventSupported = true; | |
2449 | } | |
2450 | } catch (err) { | |
058be785 | 2451 | } |
6d6f0db0 | 2452 | }, |
6d6f0db0 | 2453 | }; |