]>
Commit | Line | Data |
---|---|---|
a7a89626 JM |
1 | /* |
2 | * noVNC: HTML5 VNC client | |
d58f8b51 | 3 | * Copyright (C) 2012 Joel Martin |
2bb8b28d | 4 | * Copyright (C) 2018 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 | 13 | import * as Log from './util/logging.js'; |
6d6f0db0 | 14 | import { decodeUTF8 } from './util/strings.js'; |
59ef2916 | 15 | import { supportsCursorURIs, isTouchDevice } from './util/browser.js'; |
e89eef94 | 16 | import EventTargetMixin from './util/eventtarget.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 | 20 | import Websock from "./websock.js"; |
3ae0bb09 SR |
21 | import DES from "./des.js"; |
22 | import KeyTable from "./input/keysym.js"; | |
23 | import XtScancode from "./input/xtscancodes.js"; | |
fba220c6 | 24 | import Inflator from "./inflator.js"; |
f8ec2df2 | 25 | import { encodings, encodingName } from "./encodings.js"; |
e89eef94 | 26 | import "./util/polyfill.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 | |
68e09edc PO |
31 | // How many seconds to wait for a disconnect to finish |
32 | var DISCONNECT_TIMEOUT = 3; | |
33 | ||
2f4516f2 PO |
34 | export default function RFB(target, url, options) { |
35 | if (!target) { | |
36 | throw Error("Must specify target"); | |
37 | } | |
38 | if (!url) { | |
39 | throw Error("Must specify URL"); | |
ae510306 SR |
40 | } |
41 | ||
3d7bb020 | 42 | this._target = target; |
2f4516f2 | 43 | this._url = url; |
ae510306 | 44 | |
c7d08d72 | 45 | // Connection details |
4e1c5435 | 46 | options = options || {}; |
2f4516f2 PO |
47 | this._rfb_credentials = options.credentials || {}; |
48 | this._shared = 'shared' in options ? !!options.shared : true; | |
49 | this._repeaterID = options.repeaterID || ''; | |
ae510306 | 50 | |
c7d08d72 | 51 | // Internal state |
3bb12056 | 52 | this._rfb_connection_state = ''; |
c00ee156 | 53 | this._rfb_init_state = ''; |
ae510306 | 54 | this._rfb_auth_scheme = ''; |
d472f3f1 | 55 | this._rfb_clean_disconnect = true; |
ae510306 | 56 | |
c7d08d72 PO |
57 | // Server capabilities |
58 | this._rfb_version = 0; | |
59 | this._rfb_max_version = 3.8; | |
ae510306 SR |
60 | this._rfb_tightvnc = false; |
61 | this._rfb_xvp_ver = 0; | |
62 | ||
c7d08d72 PO |
63 | this._fb_width = 0; |
64 | this._fb_height = 0; | |
65 | ||
66 | this._fb_name = ""; | |
ae510306 | 67 | |
9b84f516 | 68 | this._capabilities = { power: false }; |
cd523e8f | 69 | |
c7d08d72 | 70 | this._supportsFence = false; |
ae510306 | 71 | |
c7d08d72 PO |
72 | this._supportsContinuousUpdates = false; |
73 | this._enabledContinuousUpdates = false; | |
74 | ||
75 | this._supportsSetDesktopSize = false; | |
76 | this._screen_id = 0; | |
77 | this._screen_flags = 0; | |
78 | ||
79 | this._qemuExtKeyEventSupported = false; | |
80 | ||
81 | // Internal objects | |
ae510306 SR |
82 | this._sock = null; // Websock object |
83 | this._display = null; // Display object | |
d9ca5e5b | 84 | this._flushing = false; // Display flushing state |
ae510306 SR |
85 | this._keyboard = null; // Keyboard input handler object |
86 | this._mouse = null; // Mouse input handler object | |
ae510306 | 87 | |
c7d08d72 PO |
88 | // Timers |
89 | this._disconnTimer = null; // disconnection timer | |
9b84f516 | 90 | this._resizeTimeout = null; // resize rate limiting |
ae510306 | 91 | |
c7d08d72 PO |
92 | // Decoder states and stats |
93 | this._encHandlers = {}; | |
94 | this._encStats = {}; | |
ae510306 | 95 | |
ae510306 SR |
96 | this._FBU = { |
97 | rects: 0, | |
c7d08d72 | 98 | subrects: 0, // RRE and HEXTILE |
ae510306 SR |
99 | lines: 0, // RAW |
100 | tiles: 0, // HEXTILE | |
101 | bytes: 0, | |
102 | x: 0, | |
103 | y: 0, | |
104 | width: 0, | |
105 | height: 0, | |
106 | encoding: 0, | |
107 | subencoding: -1, | |
108 | background: null, | |
c7d08d72 | 109 | zlibs: [] // TIGHT zlib streams |
ae510306 | 110 | }; |
c7d08d72 PO |
111 | for (var i = 0; i < 4; i++) { |
112 | this._FBU.zlibs[i] = new Inflator(); | |
113 | } | |
b1dee947 | 114 | |
ae510306 SR |
115 | this._destBuff = null; |
116 | this._paletteBuff = new Uint8Array(1024); // 256 * 4 (max palette size * max bytes-per-pixel) | |
b1dee947 | 117 | |
ae510306 | 118 | this._rre_chunk_sz = 100; |
b1dee947 | 119 | |
ae510306 SR |
120 | this._timing = { |
121 | last_fbu: 0, | |
122 | fbu_total: 0, | |
123 | fbu_total_cnt: 0, | |
124 | full_fbu_total: 0, | |
125 | full_fbu_cnt: 0, | |
b1dee947 | 126 | |
ae510306 SR |
127 | fbu_rt_start: 0, |
128 | fbu_rt_total: 0, | |
129 | fbu_rt_cnt: 0, | |
130 | pixels: 0 | |
131 | }; | |
132 | ||
ae510306 SR |
133 | // Mouse state |
134 | this._mouse_buttonMask = 0; | |
135 | this._mouse_arr = []; | |
136 | this._viewportDragging = false; | |
137 | this._viewportDragPos = {}; | |
138 | this._viewportHasMoved = false; | |
139 | ||
1d6ff4a3 PO |
140 | // Bound event handlers |
141 | this._eventHandlers = { | |
142 | focusCanvas: this._focusCanvas.bind(this), | |
9b84f516 | 143 | windowResize: this._windowResize.bind(this), |
1d6ff4a3 PO |
144 | }; |
145 | ||
ae510306 | 146 | // main setup |
6d6f0db0 | 147 | Log.Debug(">> RFB.constructor"); |
ae510306 | 148 | |
9b84f516 PO |
149 | // Create DOM elements |
150 | this._screen = document.createElement('div'); | |
151 | this._screen.style.display = 'flex'; | |
152 | this._screen.style.width = '100%'; | |
153 | this._screen.style.height = '100%'; | |
154 | this._screen.style.overflow = 'auto'; | |
155 | this._screen.style.backgroundColor = 'rgb(40, 40, 40)'; | |
156 | this._canvas = document.createElement('canvas'); | |
157 | this._canvas.style.margin = 'auto'; | |
158 | // Some browsers add an outline on focus | |
159 | this._canvas.style.outline = 'none'; | |
160 | // IE miscalculates width without this :( | |
161 | this._canvas.style.flexShrink = '0'; | |
162 | this._canvas.width = 0; | |
163 | this._canvas.height = 0; | |
164 | this._canvas.tabIndex = -1; | |
165 | this._screen.appendChild(this._canvas); | |
45808617 | 166 | |
ae510306 | 167 | // populate encHandlers with bound versions |
cd230363 SM |
168 | this._encHandlers[encodings.encodingRaw] = RFB.encodingHandlers.RAW.bind(this); |
169 | this._encHandlers[encodings.encodingCopyRect] = RFB.encodingHandlers.COPYRECT.bind(this); | |
170 | this._encHandlers[encodings.encodingRRE] = RFB.encodingHandlers.RRE.bind(this); | |
171 | this._encHandlers[encodings.encodingHextile] = RFB.encodingHandlers.HEXTILE.bind(this); | |
5bdcf5d3 PO |
172 | this._encHandlers[encodings.encodingTight] = RFB.encodingHandlers.TIGHT.bind(this, false); |
173 | this._encHandlers[encodings.encodingTightPNG] = RFB.encodingHandlers.TIGHT.bind(this, true); | |
cd230363 SM |
174 | |
175 | this._encHandlers[encodings.pseudoEncodingDesktopSize] = RFB.encodingHandlers.DesktopSize.bind(this); | |
176 | this._encHandlers[encodings.pseudoEncodingLastRect] = RFB.encodingHandlers.last_rect.bind(this); | |
177 | this._encHandlers[encodings.pseudoEncodingCursor] = RFB.encodingHandlers.Cursor.bind(this); | |
178 | this._encHandlers[encodings.pseudoEncodingQEMUExtendedKeyEvent] = RFB.encodingHandlers.QEMUExtendedKeyEvent.bind(this); | |
179 | this._encHandlers[encodings.pseudoEncodingExtendedDesktopSize] = RFB.encodingHandlers.ExtendedDesktopSize.bind(this); | |
ae510306 SR |
180 | |
181 | // NB: nothing that needs explicit teardown should be done | |
182 | // before this point, since this can throw an exception | |
183 | try { | |
9b84f516 | 184 | this._display = new Display(this._canvas); |
ae510306 | 185 | } catch (exc) { |
6d6f0db0 | 186 | Log.Error("Display exception: " + exc); |
ae510306 SR |
187 | throw exc; |
188 | } | |
747b4623 | 189 | this._display.onflush = this._onFlush.bind(this); |
c7d08d72 | 190 | this._display.clear(); |
ae510306 | 191 | |
9b84f516 | 192 | this._keyboard = new Keyboard(this._canvas); |
747b4623 | 193 | this._keyboard.onkeyevent = this._handleKeyEvent.bind(this); |
ae510306 | 194 | |
9b84f516 | 195 | this._mouse = new Mouse(this._canvas); |
747b4623 PO |
196 | this._mouse.onmousebutton = this._handleMouseButton.bind(this); |
197 | this._mouse.onmousemove = this._handleMouseMove.bind(this); | |
ae510306 SR |
198 | |
199 | this._sock = new Websock(); | |
200 | this._sock.on('message', this._handle_message.bind(this)); | |
201 | this._sock.on('open', function () { | |
c2a4d3ef | 202 | if ((this._rfb_connection_state === 'connecting') && |
c00ee156 SM |
203 | (this._rfb_init_state === '')) { |
204 | this._rfb_init_state = 'ProtocolVersion'; | |
6d6f0db0 | 205 | Log.Debug("Starting VNC handshake"); |
ae510306 | 206 | } else { |
d472f3f1 SM |
207 | this._fail("Unexpected server connection while " + |
208 | this._rfb_connection_state); | |
ae510306 SR |
209 | } |
210 | }.bind(this)); | |
211 | this._sock.on('close', function (e) { | |
ddcb60c3 | 212 | Log.Debug("WebSocket on-close event"); |
ae510306 SR |
213 | var msg = ""; |
214 | if (e.code) { | |
d472f3f1 | 215 | msg = "(code: " + e.code; |
ae510306 SR |
216 | if (e.reason) { |
217 | msg += ", reason: " + e.reason; | |
b1dee947 | 218 | } |
ae510306 SR |
219 | msg += ")"; |
220 | } | |
c00ee156 | 221 | switch (this._rfb_connection_state) { |
c2a4d3ef | 222 | case 'connecting': |
d472f3f1 | 223 | this._fail("Connection closed " + msg); |
c00ee156 | 224 | break; |
b45905ab SM |
225 | case 'connected': |
226 | // Handle disconnects that were initiated server-side | |
227 | this._updateConnectionState('disconnecting'); | |
228 | this._updateConnectionState('disconnected'); | |
229 | break; | |
d472f3f1 SM |
230 | case 'disconnecting': |
231 | // Normal disconnection path | |
232 | this._updateConnectionState('disconnected'); | |
233 | break; | |
c00ee156 | 234 | case 'disconnected': |
d472f3f1 SM |
235 | this._fail("Unexpected server disconnect " + |
236 | "when already disconnected " + msg); | |
c00ee156 SM |
237 | break; |
238 | default: | |
d472f3f1 SM |
239 | this._fail("Unexpected server disconnect before connecting " + |
240 | msg); | |
c00ee156 | 241 | break; |
a679a97d | 242 | } |
ae510306 SR |
243 | this._sock.off('close'); |
244 | }.bind(this)); | |
245 | this._sock.on('error', function (e) { | |
6d6f0db0 | 246 | Log.Warn("WebSocket on-error event"); |
ae510306 | 247 | }); |
8db09746 | 248 | |
2f4516f2 PO |
249 | // Slight delay of the actual connection so that the caller has |
250 | // time to set up callbacks | |
251 | setTimeout(this._updateConnectionState.bind(this, 'connecting')); | |
ae510306 | 252 | |
6d6f0db0 | 253 | Log.Debug("<< RFB.constructor"); |
ae510306 | 254 | }; |
a7a89626 | 255 | |
6d6f0db0 | 256 | RFB.prototype = { |
747b4623 | 257 | // ===== PROPERTIES ===== |
6d6f0db0 | 258 | |
0460e5fd | 259 | dragViewport: false, |
a201bfc5 | 260 | focusOnClick: true, |
a7a89626 | 261 | |
747b4623 PO |
262 | _viewOnly: false, |
263 | get viewOnly() { return this._viewOnly; }, | |
264 | set viewOnly(viewOnly) { | |
265 | this._viewOnly = viewOnly; | |
266 | ||
267 | if (this._rfb_connection_state === "connecting" || | |
268 | this._rfb_connection_state === "connected") { | |
269 | if (viewOnly) { | |
270 | this._keyboard.ungrab(); | |
271 | this._mouse.ungrab(); | |
272 | } else { | |
273 | this._keyboard.grab(); | |
274 | this._mouse.grab(); | |
275 | } | |
276 | } | |
6d6f0db0 SR |
277 | }, |
278 | ||
747b4623 PO |
279 | get capabilities() { return this._capabilities; }, |
280 | ||
281 | get touchButton() { return this._mouse.touchButton; }, | |
282 | set touchButton(button) { this._mouse.touchButton = button; }, | |
283 | ||
9b84f516 PO |
284 | _clipViewport: false, |
285 | get clipViewport() { return this._clipViewport; }, | |
286 | set clipViewport(viewport) { | |
287 | this._clipViewport = viewport; | |
288 | this._updateClip(); | |
289 | }, | |
747b4623 | 290 | |
9b84f516 PO |
291 | _scaleViewport: false, |
292 | get scaleViewport() { return this._scaleViewport; }, | |
293 | set scaleViewport(scale) { | |
294 | this._scaleViewport = scale; | |
295 | // Scaling trumps clipping, so we may need to adjust | |
296 | // clipping when enabling or disabling scaling | |
297 | if (scale && this._clipViewport) { | |
298 | this._updateClip(); | |
299 | } | |
300 | this._updateScale(); | |
301 | if (!scale && this._clipViewport) { | |
302 | this._updateClip(); | |
303 | } | |
304 | }, | |
747b4623 | 305 | |
9b84f516 PO |
306 | _resizeSession: false, |
307 | get resizeSession() { return this._resizeSession; }, | |
308 | set resizeSession(resize) { | |
309 | this._resizeSession = resize; | |
310 | if (resize) { | |
311 | this._requestRemoteResize(); | |
312 | } | |
313 | }, | |
a80aa416 | 314 | |
747b4623 PO |
315 | // ===== PUBLIC METHODS ===== |
316 | ||
6d6f0db0 SR |
317 | disconnect: function () { |
318 | this._updateConnectionState('disconnecting'); | |
319 | this._sock.off('error'); | |
320 | this._sock.off('message'); | |
321 | this._sock.off('open'); | |
322 | }, | |
323 | ||
430f00d6 PO |
324 | sendCredentials: function (creds) { |
325 | this._rfb_credentials = creds; | |
6d6f0db0 SR |
326 | setTimeout(this._init_msg.bind(this), 0); |
327 | }, | |
328 | ||
329 | sendCtrlAltDel: function () { | |
15a62695 | 330 | if (this._rfb_connection_state !== 'connected' || this._viewOnly) { return; } |
6d6f0db0 SR |
331 | Log.Info("Sending Ctrl-Alt-Del"); |
332 | ||
94f5cf05 PO |
333 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", true); |
334 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", true); | |
335 | this.sendKey(KeyTable.XK_Delete, "Delete", true); | |
336 | this.sendKey(KeyTable.XK_Delete, "Delete", false); | |
337 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", false); | |
338 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", false); | |
6d6f0db0 SR |
339 | }, |
340 | ||
cd523e8f PO |
341 | machineShutdown: function () { |
342 | this._xvpOp(1, 2); | |
6d6f0db0 SR |
343 | }, |
344 | ||
cd523e8f PO |
345 | machineReboot: function () { |
346 | this._xvpOp(1, 3); | |
6d6f0db0 SR |
347 | }, |
348 | ||
cd523e8f PO |
349 | machineReset: function () { |
350 | this._xvpOp(1, 4); | |
6d6f0db0 SR |
351 | }, |
352 | ||
353 | // Send a key press. If 'down' is not specified then send a down key | |
354 | // followed by an up key. | |
94f5cf05 | 355 | sendKey: function (keysym, code, down) { |
15a62695 | 356 | if (this._rfb_connection_state !== 'connected' || this._viewOnly) { return; } |
94f5cf05 PO |
357 | |
358 | if (down === undefined) { | |
359 | this.sendKey(keysym, code, true); | |
360 | this.sendKey(keysym, code, false); | |
15a62695 | 361 | return; |
94f5cf05 PO |
362 | } |
363 | ||
be70fe0a | 364 | var scancode = XtScancode[code]; |
94f5cf05 | 365 | |
be70fe0a | 366 | if (this._qemuExtKeyEventSupported && scancode) { |
459ed008 PO |
367 | // 0 is NoSymbol |
368 | keysym = keysym || 0; | |
369 | ||
94f5cf05 PO |
370 | Log.Info("Sending key (" + (down ? "down" : "up") + "): keysym " + keysym + ", scancode " + scancode); |
371 | ||
372 | RFB.messages.QEMUExtendedKeyEvent(this._sock, keysym, down, scancode); | |
373 | } else { | |
459ed008 | 374 | if (!keysym) { |
15a62695 | 375 | return; |
459ed008 | 376 | } |
6d6f0db0 SR |
377 | Log.Info("Sending keysym (" + (down ? "down" : "up") + "): " + keysym); |
378 | RFB.messages.keyEvent(this._sock, keysym, down ? 1 : 0); | |
6d6f0db0 | 379 | } |
6d6f0db0 SR |
380 | }, |
381 | ||
9b84f516 PO |
382 | focus: function () { |
383 | this._canvas.focus(); | |
b9854a5c PO |
384 | }, |
385 | ||
9b84f516 PO |
386 | blur: function () { |
387 | this._canvas.blur(); | |
b9854a5c PO |
388 | }, |
389 | ||
9b84f516 PO |
390 | clipboardPasteFrom: function (text) { |
391 | if (this._rfb_connection_state !== 'connected' || this._viewOnly) { return; } | |
392 | RFB.messages.clientCutText(this._sock, text); | |
6d6f0db0 | 393 | }, |
b1dee947 | 394 | |
747b4623 | 395 | // ===== PRIVATE METHODS ===== |
b0ec6509 | 396 | |
6d6f0db0 SR |
397 | _connect: function () { |
398 | Log.Debug(">> RFB.connect"); | |
b0ec6509 | 399 | |
5b4e5d01 | 400 | Log.Info("connecting to " + this._url); |
b1dee947 | 401 | |
6d6f0db0 SR |
402 | try { |
403 | // WebSocket.onopen transitions to the RFB init states | |
f8318361 | 404 | this._sock.open(this._url, ['binary']); |
6d6f0db0 SR |
405 | } catch (e) { |
406 | if (e.name === 'SyntaxError') { | |
d472f3f1 | 407 | this._fail("Invalid host or port (" + e + ")"); |
b1dee947 | 408 | } else { |
d472f3f1 | 409 | this._fail("Error when opening socket (" + e + ")"); |
159ad55d | 410 | } |
6d6f0db0 | 411 | } |
e3efeb32 | 412 | |
9b84f516 PO |
413 | // Make our elements part of the page |
414 | this._target.appendChild(this._screen); | |
415 | ||
416 | // Monitor size changes of the screen | |
417 | // FIXME: Use ResizeObserver, or hidden overflow | |
418 | window.addEventListener('resize', this._eventHandlers.windowResize); | |
419 | ||
2afda544 | 420 | // Always grab focus on some kind of click event |
9b84f516 PO |
421 | this._canvas.addEventListener("mousedown", this._eventHandlers.focusCanvas); |
422 | this._canvas.addEventListener("touchstart", this._eventHandlers.focusCanvas); | |
2afda544 | 423 | |
6d6f0db0 SR |
424 | Log.Debug("<< RFB.connect"); |
425 | }, | |
426 | ||
427 | _disconnect: function () { | |
428 | Log.Debug(">> RFB.disconnect"); | |
9b84f516 PO |
429 | this._canvas.removeEventListener("mousedown", this._eventHandlers.focusCanvas); |
430 | this._canvas.removeEventListener("touchstart", this._eventHandlers.focusCanvas); | |
431 | window.removeEventListener('resize', this._eventHandlers.windowResize); | |
432 | this._keyboard.ungrab(); | |
433 | this._mouse.ungrab(); | |
6d6f0db0 SR |
434 | this._sock.close(); |
435 | this._print_stats(); | |
b245ec70 SM |
436 | try { |
437 | this._target.removeChild(this._screen); | |
438 | } catch (e) { | |
439 | if (e.name === 'NotFoundError') { | |
440 | // Some cases where the initial connection fails | |
441 | // can disconnect before the _screen is created | |
442 | } else { | |
443 | throw e; | |
444 | } | |
445 | } | |
9b84f516 | 446 | clearTimeout(this._resizeTimeout); |
6d6f0db0 SR |
447 | Log.Debug("<< RFB.disconnect"); |
448 | }, | |
449 | ||
6d6f0db0 | 450 | _print_stats: function () { |
c3386227 PO |
451 | var stats = this._encStats; |
452 | ||
6d6f0db0 | 453 | Log.Info("Encoding stats for this connection:"); |
c3386227 PO |
454 | Object.keys(stats).forEach(function (key) { |
455 | var s = stats[key]; | |
6d6f0db0 | 456 | if (s[0] + s[1] > 0) { |
c3386227 | 457 | Log.Info(" " + encodingName(key) + ": " + s[0] + " rects"); |
b1dee947 | 458 | } |
c3386227 | 459 | }); |
a7a89626 | 460 | |
6d6f0db0 | 461 | Log.Info("Encoding stats since page load:"); |
c3386227 PO |
462 | Object.keys(stats).forEach(function (key) { |
463 | var s = stats[key]; | |
464 | Log.Info(" " + encodingName(key) + ": " + s[1] + " rects"); | |
465 | }); | |
6d6f0db0 SR |
466 | }, |
467 | ||
2afda544 PO |
468 | _focusCanvas: function(event) { |
469 | // Respect earlier handlers' request to not do side-effects | |
1d6ff4a3 PO |
470 | if (event.defaultPrevented) { |
471 | return; | |
472 | } | |
473 | ||
b8dfb983 | 474 | if (!this.focusOnClick) { |
1d6ff4a3 PO |
475 | return; |
476 | } | |
477 | ||
9b84f516 PO |
478 | this.focus(); |
479 | }, | |
480 | ||
481 | _windowResize: function (event) { | |
482 | // If the window resized then our screen element might have | |
483 | // as well. Update the viewport dimensions. | |
484 | window.requestAnimationFrame(function () { | |
485 | this._updateClip(); | |
486 | this._updateScale(); | |
487 | }.bind(this)); | |
488 | ||
489 | if (this._resizeSession) { | |
490 | // Request changing the resolution of the remote display to | |
491 | // the size of the local browser viewport. | |
492 | ||
493 | // In order to not send multiple requests before the browser-resize | |
494 | // is finished we wait 0.5 seconds before sending the request. | |
495 | clearTimeout(this._resizeTimeout); | |
496 | this._resizeTimeout = setTimeout(this._requestRemoteResize.bind(this), 500); | |
497 | } | |
498 | }, | |
499 | ||
500 | // Update state of clipping in Display object, and make sure the | |
501 | // configured viewport matches the current screen size | |
502 | _updateClip: function () { | |
503 | var cur_clip = this._display.clipViewport; | |
504 | var new_clip = this._clipViewport; | |
505 | ||
506 | if (this._scaleViewport) { | |
507 | // Disable viewport clipping if we are scaling | |
508 | new_clip = false; | |
509 | } | |
510 | ||
511 | if (cur_clip !== new_clip) { | |
512 | this._display.clipViewport = new_clip; | |
513 | } | |
514 | ||
515 | if (new_clip) { | |
516 | // When clipping is enabled, the screen is limited to | |
517 | // the size of the container. | |
518 | let size = this._screenSize(); | |
519 | this._display.viewportChangeSize(size.w, size.h); | |
520 | this._fixScrollbars(); | |
521 | } | |
522 | }, | |
523 | ||
524 | _updateScale: function () { | |
525 | if (!this._scaleViewport) { | |
526 | this._display.scale = 1.0; | |
527 | } else { | |
528 | let size = this._screenSize(); | |
529 | this._display.autoscale(size.w, size.h); | |
530 | } | |
531 | this._fixScrollbars(); | |
532 | }, | |
533 | ||
534 | // Requests a change of remote desktop size. This message is an extension | |
535 | // and may only be sent if we have received an ExtendedDesktopSize message | |
536 | _requestRemoteResize: function () { | |
537 | clearTimeout(this._resizeTimeout); | |
538 | this._resizeTimeout = null; | |
539 | ||
540 | if (!this._resizeSession || this._viewOnly || | |
541 | !this._supportsSetDesktopSize) { | |
542 | return; | |
543 | } | |
544 | ||
545 | let size = this._screenSize(); | |
546 | RFB.messages.setDesktopSize(this._sock, size.w, size.h, | |
547 | this._screen_id, this._screen_flags); | |
548 | ||
549 | Log.Debug('Requested new desktop size: ' + | |
550 | size.w + 'x' + size.h); | |
551 | }, | |
552 | ||
553 | // Gets the the size of the available screen | |
554 | _screenSize: function () { | |
555 | return { w: this._screen.offsetWidth, | |
556 | h: this._screen.offsetHeight }; | |
557 | }, | |
558 | ||
559 | _fixScrollbars: function () { | |
560 | // This is a hack because Chrome screws up the calculation | |
561 | // for when scrollbars are needed. So to fix it we temporarily | |
562 | // toggle them off and on. | |
563 | var orig = this._screen.style.overflow; | |
564 | this._screen.style.overflow = 'hidden'; | |
565 | // Force Chrome to recalculate the layout by asking for | |
566 | // an element's dimensions | |
567 | this._screen.getBoundingClientRect(); | |
568 | this._screen.style.overflow = orig; | |
2afda544 PO |
569 | }, |
570 | ||
6d6f0db0 SR |
571 | /* |
572 | * Connection states: | |
573 | * connecting | |
574 | * connected | |
575 | * disconnecting | |
576 | * disconnected - permanent state | |
577 | */ | |
578 | _updateConnectionState: function (state) { | |
579 | var oldstate = this._rfb_connection_state; | |
580 | ||
581 | if (state === oldstate) { | |
582 | Log.Debug("Already in state '" + state + "', ignoring"); | |
583 | return; | |
584 | } | |
585 | ||
586 | // The 'disconnected' state is permanent for each RFB object | |
587 | if (oldstate === 'disconnected') { | |
588 | Log.Error("Tried changing state of a disconnected RFB object"); | |
589 | return; | |
590 | } | |
591 | ||
592 | // Ensure proper transitions before doing anything | |
593 | switch (state) { | |
594 | case 'connected': | |
595 | if (oldstate !== 'connecting') { | |
596 | Log.Error("Bad transition to connected state, " + | |
597 | "previous connection state: " + oldstate); | |
598 | return; | |
b1dee947 | 599 | } |
6d6f0db0 | 600 | break; |
a7a89626 | 601 | |
6d6f0db0 SR |
602 | case 'disconnected': |
603 | if (oldstate !== 'disconnecting') { | |
604 | Log.Error("Bad transition to disconnected state, " + | |
605 | "previous connection state: " + oldstate); | |
606 | return; | |
607 | } | |
608 | break; | |
a7a89626 | 609 | |
6d6f0db0 SR |
610 | case 'connecting': |
611 | if (oldstate !== '') { | |
612 | Log.Error("Bad transition to connecting state, " + | |
613 | "previous connection state: " + oldstate); | |
614 | return; | |
615 | } | |
616 | break; | |
b1dee947 | 617 | |
6d6f0db0 SR |
618 | case 'disconnecting': |
619 | if (oldstate !== 'connected' && oldstate !== 'connecting') { | |
620 | Log.Error("Bad transition to disconnecting state, " + | |
621 | "previous connection state: " + oldstate); | |
622 | return; | |
623 | } | |
624 | break; | |
a679a97d | 625 | |
6d6f0db0 SR |
626 | default: |
627 | Log.Error("Unknown connection state: " + state); | |
3bb12056 | 628 | return; |
6d6f0db0 | 629 | } |
b1dee947 | 630 | |
6d6f0db0 | 631 | // State change actions |
3bb12056 | 632 | |
6d6f0db0 | 633 | this._rfb_connection_state = state; |
b2e961d4 | 634 | |
6d6f0db0 SR |
635 | var smsg = "New state '" + state + "', was '" + oldstate + "'."; |
636 | Log.Debug(smsg); | |
b2e961d4 | 637 | |
6d6f0db0 SR |
638 | if (this._disconnTimer && state !== 'disconnecting') { |
639 | Log.Debug("Clearing disconnect timer"); | |
640 | clearTimeout(this._disconnTimer); | |
641 | this._disconnTimer = null; | |
3bb12056 | 642 | |
6d6f0db0 SR |
643 | // make sure we don't get a double event |
644 | this._sock.off('close'); | |
645 | } | |
b2e961d4 | 646 | |
6d6f0db0 | 647 | switch (state) { |
6d6f0db0 SR |
648 | case 'connecting': |
649 | this._connect(); | |
650 | break; | |
b2e961d4 | 651 | |
ee5cae9f SM |
652 | case 'connected': |
653 | var event = new CustomEvent("connect", { detail: {} }); | |
654 | this.dispatchEvent(event); | |
655 | break; | |
656 | ||
6d6f0db0 SR |
657 | case 'disconnecting': |
658 | this._disconnect(); | |
b2e961d4 | 659 | |
6d6f0db0 | 660 | this._disconnTimer = setTimeout(function () { |
d472f3f1 | 661 | Log.Error("Disconnection timed out."); |
6d6f0db0 | 662 | this._updateConnectionState('disconnected'); |
68e09edc | 663 | }.bind(this), DISCONNECT_TIMEOUT * 1000); |
6d6f0db0 | 664 | break; |
ee5cae9f SM |
665 | |
666 | case 'disconnected': | |
d472f3f1 SM |
667 | event = new CustomEvent( |
668 | "disconnect", { detail: | |
669 | { clean: this._rfb_clean_disconnect } }); | |
ee5cae9f SM |
670 | this.dispatchEvent(event); |
671 | break; | |
6d6f0db0 SR |
672 | } |
673 | }, | |
674 | ||
675 | /* Print errors and disconnect | |
676 | * | |
d472f3f1 | 677 | * The parameter 'details' is used for information that |
6d6f0db0 SR |
678 | * should be logged but not sent to the user interface. |
679 | */ | |
d472f3f1 | 680 | _fail: function (details) { |
6d6f0db0 SR |
681 | switch (this._rfb_connection_state) { |
682 | case 'disconnecting': | |
d472f3f1 | 683 | Log.Error("Failed when disconnecting: " + details); |
6d6f0db0 SR |
684 | break; |
685 | case 'connected': | |
d472f3f1 | 686 | Log.Error("Failed while connected: " + details); |
6d6f0db0 SR |
687 | break; |
688 | case 'connecting': | |
d472f3f1 | 689 | Log.Error("Failed when connecting: " + details); |
6d6f0db0 SR |
690 | break; |
691 | default: | |
d472f3f1 | 692 | Log.Error("RFB failure: " + details); |
6d6f0db0 SR |
693 | break; |
694 | } | |
d472f3f1 | 695 | this._rfb_clean_disconnect = false; //This is sent to the UI |
6d6f0db0 SR |
696 | |
697 | // Transition to disconnected without waiting for socket to close | |
698 | this._updateConnectionState('disconnecting'); | |
699 | this._updateConnectionState('disconnected'); | |
700 | ||
701 | return false; | |
702 | }, | |
703 | ||
832be262 PO |
704 | _setCapability: function (cap, val) { |
705 | this._capabilities[cap] = val; | |
e89eef94 PO |
706 | var event = new CustomEvent("capabilities", |
707 | { detail: { capabilities: this._capabilities } }); | |
708 | this.dispatchEvent(event); | |
6d6f0db0 | 709 | }, |
b1dee947 | 710 | |
6d6f0db0 SR |
711 | _handle_message: function () { |
712 | if (this._sock.rQlen() === 0) { | |
713 | Log.Warn("handle_message called on an empty receive queue"); | |
714 | return; | |
715 | } | |
b1dee947 | 716 | |
6d6f0db0 SR |
717 | switch (this._rfb_connection_state) { |
718 | case 'disconnected': | |
719 | Log.Error("Got data while disconnected"); | |
720 | break; | |
721 | case 'connected': | |
722 | while (true) { | |
723 | if (this._flushing) { | |
724 | break; | |
725 | } | |
726 | if (!this._normal_msg()) { | |
727 | break; | |
728 | } | |
729 | if (this._sock.rQlen() === 0) { | |
730 | break; | |
731 | } | |
732 | } | |
733 | break; | |
734 | default: | |
735 | this._init_msg(); | |
736 | break; | |
737 | } | |
738 | }, | |
3bb12056 | 739 | |
d0703d1b PO |
740 | _handleKeyEvent: function (keysym, code, down) { |
741 | this.sendKey(keysym, code, down); | |
6d6f0db0 | 742 | }, |
06a9ef0c | 743 | |
6d6f0db0 SR |
744 | _handleMouseButton: function (x, y, down, bmask) { |
745 | if (down) { | |
746 | this._mouse_buttonMask |= bmask; | |
747 | } else { | |
270bdbd7 | 748 | this._mouse_buttonMask &= ~bmask; |
6d6f0db0 | 749 | } |
a7127fee | 750 | |
0460e5fd | 751 | if (this.dragViewport) { |
6d6f0db0 SR |
752 | if (down && !this._viewportDragging) { |
753 | this._viewportDragging = true; | |
754 | this._viewportDragPos = {'x': x, 'y': y}; | |
898cd32c | 755 | this._viewportHasMoved = false; |
a7127fee | 756 | |
6d6f0db0 | 757 | // Skip sending mouse events |
b1dee947 | 758 | return; |
6d6f0db0 SR |
759 | } else { |
760 | this._viewportDragging = false; | |
8db09746 | 761 | |
898cd32c PO |
762 | // If we actually performed a drag then we are done |
763 | // here and should not send any mouse events | |
764 | if (this._viewportHasMoved) { | |
765 | return; | |
6d6f0db0 | 766 | } |
898cd32c PO |
767 | |
768 | // Otherwise we treat this as a mouse click event. | |
769 | // Send the button down event here, as the button up | |
770 | // event is sent at the end of this function. | |
771 | RFB.messages.pointerEvent(this._sock, | |
772 | this._display.absX(x), | |
773 | this._display.absY(y), | |
774 | bmask); | |
b1dee947 | 775 | } |
6d6f0db0 | 776 | } |
8db09746 | 777 | |
747b4623 | 778 | if (this._viewOnly) { return; } // View only, skip mouse events |
8f06673a | 779 | |
6d6f0db0 SR |
780 | if (this._rfb_connection_state !== 'connected') { return; } |
781 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
782 | }, | |
8db09746 | 783 | |
6d6f0db0 SR |
784 | _handleMouseMove: function (x, y) { |
785 | if (this._viewportDragging) { | |
786 | var deltaX = this._viewportDragPos.x - x; | |
787 | var deltaY = this._viewportDragPos.y - y; | |
8db09746 | 788 | |
6d6f0db0 SR |
789 | // The goal is to trigger on a certain physical width, the |
790 | // devicePixelRatio brings us a bit closer but is not optimal. | |
791 | var dragThreshold = 10 * (window.devicePixelRatio || 1); | |
8db09746 | 792 | |
6d6f0db0 SR |
793 | if (this._viewportHasMoved || (Math.abs(deltaX) > dragThreshold || |
794 | Math.abs(deltaY) > dragThreshold)) { | |
795 | this._viewportHasMoved = true; | |
27e77d46 | 796 | |
6d6f0db0 SR |
797 | this._viewportDragPos = {'x': x, 'y': y}; |
798 | this._display.viewportChangePos(deltaX, deltaY); | |
b50f3406 | 799 | } |
8db09746 | 800 | |
6d6f0db0 SR |
801 | // Skip sending mouse events |
802 | return; | |
803 | } | |
b1dee947 | 804 | |
747b4623 | 805 | if (this._viewOnly) { return; } // View only, skip mouse events |
b1dee947 | 806 | |
6d6f0db0 SR |
807 | if (this._rfb_connection_state !== 'connected') { return; } |
808 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
809 | }, | |
b1dee947 | 810 | |
6d6f0db0 | 811 | // Message Handlers |
27e77d46 | 812 | |
6d6f0db0 SR |
813 | _negotiate_protocol_version: function () { |
814 | if (this._sock.rQlen() < 12) { | |
d472f3f1 | 815 | return this._fail("Received incomplete protocol version."); |
6d6f0db0 | 816 | } |
32df3fdb | 817 | |
6d6f0db0 SR |
818 | var sversion = this._sock.rQshiftStr(12).substr(4, 7); |
819 | Log.Info("Server ProtocolVersion: " + sversion); | |
820 | var is_repeater = 0; | |
821 | switch (sversion) { | |
822 | case "000.000": // UltraVNC repeater | |
823 | is_repeater = 1; | |
824 | break; | |
825 | case "003.003": | |
826 | case "003.006": // UltraVNC | |
827 | case "003.889": // Apple Remote Desktop | |
828 | this._rfb_version = 3.3; | |
829 | break; | |
830 | case "003.007": | |
831 | this._rfb_version = 3.7; | |
832 | break; | |
833 | case "003.008": | |
834 | case "004.000": // Intel AMT KVM | |
835 | case "004.001": // RealVNC 4.6 | |
836 | case "005.000": // RealVNC 5.3 | |
837 | this._rfb_version = 3.8; | |
838 | break; | |
839 | default: | |
d472f3f1 | 840 | return this._fail("Invalid server version " + sversion); |
6d6f0db0 | 841 | } |
8db09746 | 842 | |
6d6f0db0 | 843 | if (is_repeater) { |
ebf1c0f9 | 844 | var repeaterID = "ID:" + this._repeaterID; |
6d6f0db0 SR |
845 | while (repeaterID.length < 250) { |
846 | repeaterID += "\0"; | |
b1dee947 | 847 | } |
6d6f0db0 SR |
848 | this._sock.send_string(repeaterID); |
849 | return true; | |
850 | } | |
b1dee947 | 851 | |
6d6f0db0 SR |
852 | if (this._rfb_version > this._rfb_max_version) { |
853 | this._rfb_version = this._rfb_max_version; | |
854 | } | |
b1dee947 | 855 | |
6d6f0db0 SR |
856 | var cversion = "00" + parseInt(this._rfb_version, 10) + |
857 | ".00" + ((this._rfb_version * 10) % 10); | |
858 | this._sock.send_string("RFB " + cversion + "\n"); | |
859 | Log.Debug('Sent ProtocolVersion: ' + cversion); | |
b1dee947 | 860 | |
6d6f0db0 SR |
861 | this._rfb_init_state = 'Security'; |
862 | }, | |
b1dee947 | 863 | |
6d6f0db0 SR |
864 | _negotiate_security: function () { |
865 | // Polyfill since IE and PhantomJS doesn't have | |
866 | // TypedArray.includes() | |
867 | function includes(item, array) { | |
868 | for (var i = 0; i < array.length; i++) { | |
869 | if (array[i] === item) { | |
870 | return true; | |
871 | } | |
b1dee947 | 872 | } |
6d6f0db0 SR |
873 | return false; |
874 | } | |
b1dee947 | 875 | |
6d6f0db0 SR |
876 | if (this._rfb_version >= 3.7) { |
877 | // Server sends supported list, client decides | |
878 | var num_types = this._sock.rQshift8(); | |
879 | if (this._sock.rQwait("security type", num_types, 1)) { return false; } | |
b1dee947 | 880 | |
6d6f0db0 | 881 | if (num_types === 0) { |
d472f3f1 | 882 | return this._handle_security_failure("no security types"); |
6d6f0db0 SR |
883 | } |
884 | ||
885 | var types = this._sock.rQshiftBytes(num_types); | |
886 | Log.Debug("Server security types: " + types); | |
887 | ||
888 | // Look for each auth in preferred order | |
889 | this._rfb_auth_scheme = 0; | |
890 | if (includes(1, types)) { | |
891 | this._rfb_auth_scheme = 1; // None | |
892 | } else if (includes(22, types)) { | |
893 | this._rfb_auth_scheme = 22; // XVP | |
894 | } else if (includes(16, types)) { | |
895 | this._rfb_auth_scheme = 16; // Tight | |
896 | } else if (includes(2, types)) { | |
897 | this._rfb_auth_scheme = 2; // VNC Auth | |
898 | } else { | |
d472f3f1 | 899 | return this._fail("Unsupported security types (types: " + types + ")"); |
8db09746 | 900 | } |
b1dee947 | 901 | |
6d6f0db0 SR |
902 | this._sock.send([this._rfb_auth_scheme]); |
903 | } else { | |
904 | // Server decides | |
905 | if (this._sock.rQwait("security scheme", 4)) { return false; } | |
906 | this._rfb_auth_scheme = this._sock.rQshift32(); | |
907 | } | |
b1dee947 | 908 | |
6d6f0db0 SR |
909 | this._rfb_init_state = 'Authentication'; |
910 | Log.Debug('Authenticating using scheme: ' + this._rfb_auth_scheme); | |
b1dee947 | 911 | |
6d6f0db0 SR |
912 | return this._init_msg(); // jump to authentication |
913 | }, | |
b1dee947 | 914 | |
d472f3f1 SM |
915 | /* |
916 | * Get the security failure reason if sent from the server and | |
917 | * send the 'securityfailure' event. | |
918 | * | |
919 | * - The optional parameter context can be used to add some extra | |
920 | * context to the log output. | |
921 | * | |
922 | * - The optional parameter security_result_status can be used to | |
923 | * add a custom status code to the event. | |
924 | */ | |
925 | _handle_security_failure: function (context, security_result_status) { | |
926 | ||
927 | if (typeof context === 'undefined') { | |
928 | context = ""; | |
929 | } else { | |
930 | context = " on " + context; | |
931 | } | |
932 | ||
933 | if (typeof security_result_status === 'undefined') { | |
934 | security_result_status = 1; // fail | |
935 | } | |
936 | ||
937 | if (this._sock.rQwait("reason length", 4)) { | |
938 | return false; | |
939 | } | |
940 | let strlen = this._sock.rQshift32(); | |
941 | let reason = ""; | |
942 | ||
943 | if (strlen > 0) { | |
944 | if (this._sock.rQwait("reason", strlen, 8)) { return false; } | |
945 | reason = this._sock.rQshiftStr(strlen); | |
946 | } | |
947 | ||
948 | if (reason !== "") { | |
949 | ||
950 | let event = new CustomEvent( | |
951 | "securityfailure", | |
952 | { detail: { status: security_result_status, reason: reason } }); | |
953 | this.dispatchEvent(event); | |
954 | ||
955 | return this._fail("Security negotiation failed" + context + | |
956 | " (reason: " + reason + ")"); | |
957 | } else { | |
958 | ||
959 | let event = new CustomEvent( | |
960 | "securityfailure", | |
961 | { detail: { status: security_result_status } }); | |
962 | this.dispatchEvent(event); | |
963 | ||
964 | return this._fail("Security negotiation failed" + context); | |
965 | } | |
966 | }, | |
967 | ||
6d6f0db0 SR |
968 | // authentication |
969 | _negotiate_xvp_auth: function () { | |
430f00d6 PO |
970 | if (!this._rfb_credentials.username || |
971 | !this._rfb_credentials.password || | |
972 | !this._rfb_credentials.target) { | |
e89eef94 PO |
973 | var event = new CustomEvent("credentialsrequired", |
974 | { detail: { types: ["username", "password", "target"] } }); | |
975 | this.dispatchEvent(event); | |
6d6f0db0 SR |
976 | return false; |
977 | } | |
0ee5ca6e | 978 | |
430f00d6 PO |
979 | var xvp_auth_str = String.fromCharCode(this._rfb_credentials.username.length) + |
980 | String.fromCharCode(this._rfb_credentials.target.length) + | |
981 | this._rfb_credentials.username + | |
982 | this._rfb_credentials.target; | |
6d6f0db0 | 983 | this._sock.send_string(xvp_auth_str); |
6d6f0db0 SR |
984 | this._rfb_auth_scheme = 2; |
985 | return this._negotiate_authentication(); | |
986 | }, | |
987 | ||
988 | _negotiate_std_vnc_auth: function () { | |
abfe5b7a SM |
989 | if (this._sock.rQwait("auth challenge", 16)) { return false; } |
990 | ||
430f00d6 | 991 | if (!this._rfb_credentials.password) { |
e89eef94 PO |
992 | var event = new CustomEvent("credentialsrequired", |
993 | { detail: { types: ["password"] } }); | |
994 | this.dispatchEvent(event); | |
6d6f0db0 SR |
995 | return false; |
996 | } | |
b1dee947 | 997 | |
6d6f0db0 SR |
998 | // TODO(directxman12): make genDES not require an Array |
999 | var challenge = Array.prototype.slice.call(this._sock.rQshiftBytes(16)); | |
430f00d6 | 1000 | var response = RFB.genDES(this._rfb_credentials.password, challenge); |
6d6f0db0 SR |
1001 | this._sock.send(response); |
1002 | this._rfb_init_state = "SecurityResult"; | |
1003 | return true; | |
1004 | }, | |
1005 | ||
1006 | _negotiate_tight_tunnels: function (numTunnels) { | |
1007 | var clientSupportedTunnelTypes = { | |
1008 | 0: { vendor: 'TGHT', signature: 'NOTUNNEL' } | |
1009 | }; | |
1010 | var serverSupportedTunnelTypes = {}; | |
1011 | // receive tunnel capabilities | |
1012 | for (var i = 0; i < numTunnels; i++) { | |
1013 | var cap_code = this._sock.rQshift32(); | |
1014 | var cap_vendor = this._sock.rQshiftStr(4); | |
1015 | var cap_signature = this._sock.rQshiftStr(8); | |
1016 | serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature }; | |
1017 | } | |
1018 | ||
1019 | // choose the notunnel type | |
1020 | if (serverSupportedTunnelTypes[0]) { | |
1021 | if (serverSupportedTunnelTypes[0].vendor != clientSupportedTunnelTypes[0].vendor || | |
1022 | serverSupportedTunnelTypes[0].signature != clientSupportedTunnelTypes[0].signature) { | |
d472f3f1 | 1023 | return this._fail("Client's tunnel type had the incorrect " + |
6d6f0db0 | 1024 | "vendor or signature"); |
b1dee947 | 1025 | } |
6d6f0db0 SR |
1026 | this._sock.send([0, 0, 0, 0]); // use NOTUNNEL |
1027 | return false; // wait until we receive the sub auth count to continue | |
1028 | } else { | |
d472f3f1 | 1029 | return this._fail("Server wanted tunnels, but doesn't support " + |
6d6f0db0 SR |
1030 | "the notunnel type"); |
1031 | } | |
1032 | }, | |
b1dee947 | 1033 | |
6d6f0db0 SR |
1034 | _negotiate_tight_auth: function () { |
1035 | if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation | |
1036 | if (this._sock.rQwait("num tunnels", 4)) { return false; } | |
1037 | var numTunnels = this._sock.rQshift32(); | |
1038 | if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; } | |
c00ee156 | 1039 | |
6d6f0db0 | 1040 | this._rfb_tightvnc = true; |
b1dee947 | 1041 | |
6d6f0db0 SR |
1042 | if (numTunnels > 0) { |
1043 | this._negotiate_tight_tunnels(numTunnels); | |
1044 | return false; // wait until we receive the sub auth to continue | |
b1dee947 | 1045 | } |
6d6f0db0 | 1046 | } |
b1dee947 | 1047 | |
6d6f0db0 SR |
1048 | // second pass, do the sub-auth negotiation |
1049 | if (this._sock.rQwait("sub auth count", 4)) { return false; } | |
1050 | var subAuthCount = this._sock.rQshift32(); | |
1051 | if (subAuthCount === 0) { // empty sub-auth list received means 'no auth' subtype selected | |
1052 | this._rfb_init_state = 'SecurityResult'; | |
1053 | return true; | |
1054 | } | |
b1dee947 | 1055 | |
6d6f0db0 | 1056 | if (this._sock.rQwait("sub auth capabilities", 16 * subAuthCount, 4)) { return false; } |
b1dee947 | 1057 | |
6d6f0db0 SR |
1058 | var clientSupportedTypes = { |
1059 | 'STDVNOAUTH__': 1, | |
1060 | 'STDVVNCAUTH_': 2 | |
1061 | }; | |
b1dee947 | 1062 | |
6d6f0db0 | 1063 | var serverSupportedTypes = []; |
95eb681b | 1064 | |
6d6f0db0 SR |
1065 | for (var i = 0; i < subAuthCount; i++) { |
1066 | var capNum = this._sock.rQshift32(); | |
1067 | var capabilities = this._sock.rQshiftStr(12); | |
1068 | serverSupportedTypes.push(capabilities); | |
1069 | } | |
d86cc2d9 | 1070 | |
6d6f0db0 SR |
1071 | for (var authType in clientSupportedTypes) { |
1072 | if (serverSupportedTypes.indexOf(authType) != -1) { | |
1073 | this._sock.send([0, 0, 0, clientSupportedTypes[authType]]); | |
d86cc2d9 | 1074 | |
6d6f0db0 SR |
1075 | switch (authType) { |
1076 | case 'STDVNOAUTH__': // no auth | |
1077 | this._rfb_init_state = 'SecurityResult'; | |
1078 | return true; | |
1079 | case 'STDVVNCAUTH_': // VNC auth | |
1080 | this._rfb_auth_scheme = 2; | |
1081 | return this._init_msg(); | |
1082 | default: | |
d472f3f1 SM |
1083 | return this._fail("Unsupported tiny auth scheme " + |
1084 | "(scheme: " + authType + ")"); | |
b1dee947 SR |
1085 | } |
1086 | } | |
6d6f0db0 | 1087 | } |
b1dee947 | 1088 | |
d472f3f1 | 1089 | return this._fail("No supported sub-auth types!"); |
6d6f0db0 SR |
1090 | }, |
1091 | ||
1092 | _negotiate_authentication: function () { | |
1093 | switch (this._rfb_auth_scheme) { | |
1094 | case 0: // connection failed | |
d472f3f1 | 1095 | return this._handle_security_failure("authentication scheme"); |
6d6f0db0 SR |
1096 | |
1097 | case 1: // no auth | |
1098 | if (this._rfb_version >= 3.8) { | |
1099 | this._rfb_init_state = 'SecurityResult'; | |
1100 | return true; | |
1101 | } | |
1102 | this._rfb_init_state = 'ClientInitialisation'; | |
1103 | return this._init_msg(); | |
95eb681b | 1104 | |
6d6f0db0 SR |
1105 | case 22: // XVP auth |
1106 | return this._negotiate_xvp_auth(); | |
d86cc2d9 | 1107 | |
6d6f0db0 SR |
1108 | case 2: // VNC authentication |
1109 | return this._negotiate_std_vnc_auth(); | |
d86cc2d9 | 1110 | |
6d6f0db0 SR |
1111 | case 16: // TightVNC Security Type |
1112 | return this._negotiate_tight_auth(); | |
d86cc2d9 | 1113 | |
6d6f0db0 | 1114 | default: |
d472f3f1 SM |
1115 | return this._fail("Unsupported auth scheme (scheme: " + |
1116 | this._rfb_auth_scheme + ")"); | |
6d6f0db0 SR |
1117 | } |
1118 | }, | |
1119 | ||
1120 | _handle_security_result: function () { | |
1121 | if (this._sock.rQwait('VNC auth response ', 4)) { return false; } | |
d472f3f1 SM |
1122 | |
1123 | let status = this._sock.rQshift32(); | |
1124 | ||
1125 | if (status === 0) { // OK | |
1126 | this._rfb_init_state = 'ClientInitialisation'; | |
1127 | Log.Debug('Authentication OK'); | |
1128 | return this._init_msg(); | |
1129 | } else { | |
1130 | if (this._rfb_version >= 3.8) { | |
1131 | return this._handle_security_failure("security result", status); | |
1132 | } else { | |
1133 | let event = new CustomEvent("securityfailure", | |
1134 | { detail: { status: status } }); | |
1135 | this.dispatchEvent(event); | |
1136 | ||
1137 | return this._fail("Security handshake failed"); | |
1138 | } | |
6d6f0db0 SR |
1139 | } |
1140 | }, | |
1141 | ||
1142 | _negotiate_server_init: function () { | |
1143 | if (this._sock.rQwait("server initialization", 24)) { return false; } | |
1144 | ||
1145 | /* Screen size */ | |
91d5c625 PO |
1146 | var width = this._sock.rQshift16(); |
1147 | var height = this._sock.rQshift16(); | |
6d6f0db0 SR |
1148 | |
1149 | /* PIXEL_FORMAT */ | |
1150 | var bpp = this._sock.rQshift8(); | |
1151 | var depth = this._sock.rQshift8(); | |
1152 | var big_endian = this._sock.rQshift8(); | |
1153 | var true_color = this._sock.rQshift8(); | |
1154 | ||
1155 | var red_max = this._sock.rQshift16(); | |
1156 | var green_max = this._sock.rQshift16(); | |
1157 | var blue_max = this._sock.rQshift16(); | |
1158 | var red_shift = this._sock.rQshift8(); | |
1159 | var green_shift = this._sock.rQshift8(); | |
1160 | var blue_shift = this._sock.rQshift8(); | |
1161 | this._sock.rQskipBytes(3); // padding | |
1162 | ||
1163 | // NB(directxman12): we don't want to call any callbacks or print messages until | |
1164 | // *after* we're past the point where we could backtrack | |
1165 | ||
1166 | /* Connection name/title */ | |
1167 | var name_length = this._sock.rQshift32(); | |
1168 | if (this._sock.rQwait('server init name', name_length, 24)) { return false; } | |
1169 | this._fb_name = decodeUTF8(this._sock.rQshiftStr(name_length)); | |
1170 | ||
1171 | if (this._rfb_tightvnc) { | |
1172 | if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; } | |
1173 | // In TightVNC mode, ServerInit message is extended | |
1174 | var numServerMessages = this._sock.rQshift16(); | |
1175 | var numClientMessages = this._sock.rQshift16(); | |
1176 | var numEncodings = this._sock.rQshift16(); | |
1177 | this._sock.rQskipBytes(2); // padding | |
1178 | ||
1179 | var totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16; | |
1180 | if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; } | |
1181 | ||
1182 | // we don't actually do anything with the capability information that TIGHT sends, | |
1183 | // so we just skip the all of this. | |
1184 | ||
1185 | // TIGHT server message capabilities | |
1186 | this._sock.rQskipBytes(16 * numServerMessages); | |
1187 | ||
1188 | // TIGHT client message capabilities | |
1189 | this._sock.rQskipBytes(16 * numClientMessages); | |
1190 | ||
1191 | // TIGHT encoding capabilities | |
1192 | this._sock.rQskipBytes(16 * numEncodings); | |
1193 | } | |
d86cc2d9 | 1194 | |
6d6f0db0 SR |
1195 | // NB(directxman12): these are down here so that we don't run them multiple times |
1196 | // if we backtrack | |
91d5c625 | 1197 | Log.Info("Screen: " + width + "x" + height + |
6d6f0db0 SR |
1198 | ", bpp: " + bpp + ", depth: " + depth + |
1199 | ", big_endian: " + big_endian + | |
1200 | ", true_color: " + true_color + | |
1201 | ", red_max: " + red_max + | |
1202 | ", green_max: " + green_max + | |
1203 | ", blue_max: " + blue_max + | |
1204 | ", red_shift: " + red_shift + | |
1205 | ", green_shift: " + green_shift + | |
1206 | ", blue_shift: " + blue_shift); | |
1207 | ||
1208 | if (big_endian !== 0) { | |
1209 | Log.Warn("Server native endian is not little endian"); | |
1210 | } | |
b1dee947 | 1211 | |
6d6f0db0 SR |
1212 | if (red_shift !== 16) { |
1213 | Log.Warn("Server native red-shift is not 16"); | |
1214 | } | |
b1dee947 | 1215 | |
6d6f0db0 SR |
1216 | if (blue_shift !== 0) { |
1217 | Log.Warn("Server native blue-shift is not 0"); | |
1218 | } | |
b1dee947 | 1219 | |
6d6f0db0 | 1220 | // we're past the point where we could backtrack, so it's safe to call this |
e89eef94 PO |
1221 | var event = new CustomEvent("desktopname", |
1222 | { detail: { name: this._fb_name } }); | |
1223 | this.dispatchEvent(event); | |
b1dee947 | 1224 | |
91d5c625 | 1225 | this._resize(width, height); |
b1dee947 | 1226 | |
747b4623 PO |
1227 | if (!this._viewOnly) { this._keyboard.grab(); } |
1228 | if (!this._viewOnly) { this._mouse.grab(); } | |
b1dee947 | 1229 | |
5a5f5ada PO |
1230 | this._fb_depth = 24; |
1231 | ||
1232 | if (this._fb_name === "Intel(r) AMT KVM") { | |
1233 | Log.Warn("Intel AMT KVM only supports 8/16 bit depths. Using low color mode."); | |
1234 | this._fb_depth = 8; | |
1235 | } | |
1236 | ||
1237 | RFB.messages.pixelFormat(this._sock, this._fb_depth, true); | |
49a81837 | 1238 | this._sendEncodings(); |
6d6f0db0 SR |
1239 | RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fb_width, this._fb_height); |
1240 | ||
1241 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1242 | this._timing.pixels = 0; | |
1243 | ||
cd74793b PO |
1244 | // Cursor will be server side until the server decides to honor |
1245 | // our request and send over the cursor image | |
1246 | this._display.disableLocalCursor(); | |
1247 | ||
6d6f0db0 SR |
1248 | this._updateConnectionState('connected'); |
1249 | return true; | |
1250 | }, | |
1251 | ||
49a81837 PO |
1252 | _sendEncodings: function () { |
1253 | var encs = []; | |
1254 | ||
1255 | // In preference order | |
1256 | encs.push(encodings.encodingCopyRect); | |
5a5f5ada PO |
1257 | // Only supported with full depth support |
1258 | if (this._fb_depth == 24) { | |
1259 | encs.push(encodings.encodingTight); | |
2c813a33 | 1260 | encs.push(encodings.encodingTightPNG); |
5a5f5ada PO |
1261 | encs.push(encodings.encodingHextile); |
1262 | encs.push(encodings.encodingRRE); | |
1263 | } | |
49a81837 PO |
1264 | encs.push(encodings.encodingRaw); |
1265 | ||
1266 | // Psuedo-encoding settings | |
49a81837 PO |
1267 | encs.push(encodings.pseudoEncodingQualityLevel0 + 6); |
1268 | encs.push(encodings.pseudoEncodingCompressLevel0 + 2); | |
1269 | ||
1270 | encs.push(encodings.pseudoEncodingDesktopSize); | |
1271 | encs.push(encodings.pseudoEncodingLastRect); | |
1272 | encs.push(encodings.pseudoEncodingQEMUExtendedKeyEvent); | |
1273 | encs.push(encodings.pseudoEncodingExtendedDesktopSize); | |
1274 | encs.push(encodings.pseudoEncodingXvp); | |
1275 | encs.push(encodings.pseudoEncodingFence); | |
1276 | encs.push(encodings.pseudoEncodingContinuousUpdates); | |
1277 | ||
59ef2916 | 1278 | if (supportsCursorURIs() && |
8d1f0a3d | 1279 | !isTouchDevice && this._fb_depth == 24) { |
49a81837 PO |
1280 | encs.push(encodings.pseudoEncodingCursor); |
1281 | } | |
1282 | ||
1283 | RFB.messages.clientEncodings(this._sock, encs); | |
1284 | }, | |
1285 | ||
6d6f0db0 SR |
1286 | /* RFB protocol initialization states: |
1287 | * ProtocolVersion | |
1288 | * Security | |
1289 | * Authentication | |
1290 | * SecurityResult | |
1291 | * ClientInitialization - not triggered by server message | |
1292 | * ServerInitialization | |
1293 | */ | |
1294 | _init_msg: function () { | |
1295 | switch (this._rfb_init_state) { | |
1296 | case 'ProtocolVersion': | |
1297 | return this._negotiate_protocol_version(); | |
1298 | ||
1299 | case 'Security': | |
1300 | return this._negotiate_security(); | |
1301 | ||
1302 | case 'Authentication': | |
1303 | return this._negotiate_authentication(); | |
1304 | ||
1305 | case 'SecurityResult': | |
1306 | return this._handle_security_result(); | |
1307 | ||
1308 | case 'ClientInitialisation': | |
1309 | this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation | |
1310 | this._rfb_init_state = 'ServerInitialisation'; | |
1311 | return true; | |
b1dee947 | 1312 | |
6d6f0db0 SR |
1313 | case 'ServerInitialisation': |
1314 | return this._negotiate_server_init(); | |
b1dee947 | 1315 | |
6d6f0db0 | 1316 | default: |
d472f3f1 SM |
1317 | return this._fail("Unknown init state (state: " + |
1318 | this._rfb_init_state + ")"); | |
6d6f0db0 SR |
1319 | } |
1320 | }, | |
b1dee947 | 1321 | |
6d6f0db0 SR |
1322 | _handle_set_colour_map_msg: function () { |
1323 | Log.Debug("SetColorMapEntries"); | |
b1dee947 | 1324 | |
d472f3f1 | 1325 | return this._fail("Unexpected SetColorMapEntries message"); |
6d6f0db0 | 1326 | }, |
b1dee947 | 1327 | |
6d6f0db0 SR |
1328 | _handle_server_cut_text: function () { |
1329 | Log.Debug("ServerCutText"); | |
b1dee947 | 1330 | |
6d6f0db0 SR |
1331 | if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; } |
1332 | this._sock.rQskipBytes(3); // Padding | |
1333 | var length = this._sock.rQshift32(); | |
1334 | if (this._sock.rQwait("ServerCutText", length, 8)) { return false; } | |
b1dee947 | 1335 | |
6d6f0db0 | 1336 | var text = this._sock.rQshiftStr(length); |
b4ff032e | 1337 | |
747b4623 | 1338 | if (this._viewOnly) { return true; } |
b4ff032e | 1339 | |
e89eef94 PO |
1340 | var event = new CustomEvent("clipboard", |
1341 | { detail: { text: text } }); | |
1342 | this.dispatchEvent(event); | |
b1dee947 | 1343 | |
6d6f0db0 SR |
1344 | return true; |
1345 | }, | |
b1dee947 | 1346 | |
6d6f0db0 SR |
1347 | _handle_server_fence_msg: function() { |
1348 | if (this._sock.rQwait("ServerFence header", 8, 1)) { return false; } | |
1349 | this._sock.rQskipBytes(3); // Padding | |
1350 | var flags = this._sock.rQshift32(); | |
1351 | var length = this._sock.rQshift8(); | |
b1dee947 | 1352 | |
6d6f0db0 | 1353 | if (this._sock.rQwait("ServerFence payload", length, 9)) { return false; } |
b1dee947 | 1354 | |
6d6f0db0 SR |
1355 | if (length > 64) { |
1356 | Log.Warn("Bad payload length (" + length + ") in fence response"); | |
1357 | length = 64; | |
1358 | } | |
4e0c36dd | 1359 | |
6d6f0db0 | 1360 | var payload = this._sock.rQshiftStr(length); |
b1dee947 | 1361 | |
6d6f0db0 | 1362 | this._supportsFence = true; |
b1dee947 | 1363 | |
6d6f0db0 SR |
1364 | /* |
1365 | * Fence flags | |
1366 | * | |
1367 | * (1<<0) - BlockBefore | |
1368 | * (1<<1) - BlockAfter | |
1369 | * (1<<2) - SyncNext | |
1370 | * (1<<31) - Request | |
1371 | */ | |
b1dee947 | 1372 | |
6d6f0db0 | 1373 | if (!(flags & (1<<31))) { |
d472f3f1 | 1374 | return this._fail("Unexpected fence response"); |
6d6f0db0 | 1375 | } |
b1dee947 | 1376 | |
6d6f0db0 SR |
1377 | // Filter out unsupported flags |
1378 | // FIXME: support syncNext | |
1379 | flags &= (1<<0) | (1<<1); | |
b1dee947 | 1380 | |
6d6f0db0 SR |
1381 | // BlockBefore and BlockAfter are automatically handled by |
1382 | // the fact that we process each incoming message | |
1383 | // synchronuosly. | |
1384 | RFB.messages.clientFence(this._sock, flags, payload); | |
f78a652e | 1385 | |
6d6f0db0 SR |
1386 | return true; |
1387 | }, | |
b1dee947 | 1388 | |
6d6f0db0 SR |
1389 | _handle_xvp_msg: function () { |
1390 | if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; } | |
1391 | this._sock.rQskip8(); // Padding | |
1392 | var xvp_ver = this._sock.rQshift8(); | |
1393 | var xvp_msg = this._sock.rQshift8(); | |
b1dee947 | 1394 | |
6d6f0db0 SR |
1395 | switch (xvp_msg) { |
1396 | case 0: // XVP_FAIL | |
5b20d338 | 1397 | Log.Error("XVP Operation Failed"); |
6d6f0db0 SR |
1398 | break; |
1399 | case 1: // XVP_INIT | |
1400 | this._rfb_xvp_ver = xvp_ver; | |
1401 | Log.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")"); | |
832be262 | 1402 | this._setCapability("power", true); |
6d6f0db0 SR |
1403 | break; |
1404 | default: | |
d472f3f1 | 1405 | this._fail("Illegal server XVP message (msg: " + xvp_msg + ")"); |
6d6f0db0 SR |
1406 | break; |
1407 | } | |
b1dee947 | 1408 | |
6d6f0db0 SR |
1409 | return true; |
1410 | }, | |
3df13262 | 1411 | |
6d6f0db0 SR |
1412 | _normal_msg: function () { |
1413 | var msg_type; | |
76a86ff5 | 1414 | |
6d6f0db0 SR |
1415 | if (this._FBU.rects > 0) { |
1416 | msg_type = 0; | |
1417 | } else { | |
1418 | msg_type = this._sock.rQshift8(); | |
1419 | } | |
76a86ff5 | 1420 | |
6d6f0db0 SR |
1421 | switch (msg_type) { |
1422 | case 0: // FramebufferUpdate | |
1423 | var ret = this._framebufferUpdate(); | |
1424 | if (ret && !this._enabledContinuousUpdates) { | |
1425 | RFB.messages.fbUpdateRequest(this._sock, true, 0, 0, | |
1426 | this._fb_width, this._fb_height); | |
1427 | } | |
1428 | return ret; | |
3df13262 | 1429 | |
6d6f0db0 SR |
1430 | case 1: // SetColorMapEntries |
1431 | return this._handle_set_colour_map_msg(); | |
1432 | ||
1433 | case 2: // Bell | |
1434 | Log.Debug("Bell"); | |
e89eef94 PO |
1435 | var event = new CustomEvent("bell", { detail: {} }); |
1436 | this.dispatchEvent(event); | |
6d6f0db0 SR |
1437 | return true; |
1438 | ||
1439 | case 3: // ServerCutText | |
1440 | return this._handle_server_cut_text(); | |
1441 | ||
1442 | case 150: // EndOfContinuousUpdates | |
1443 | var first = !(this._supportsContinuousUpdates); | |
1444 | this._supportsContinuousUpdates = true; | |
1445 | this._enabledContinuousUpdates = false; | |
1446 | if (first) { | |
1447 | this._enabledContinuousUpdates = true; | |
1448 | this._updateContinuousUpdates(); | |
1449 | Log.Info("Enabling continuous updates."); | |
1450 | } else { | |
1451 | // FIXME: We need to send a framebufferupdaterequest here | |
1452 | // if we add support for turning off continuous updates | |
1453 | } | |
1454 | return true; | |
3df13262 | 1455 | |
6d6f0db0 SR |
1456 | case 248: // ServerFence |
1457 | return this._handle_server_fence_msg(); | |
3df13262 | 1458 | |
6d6f0db0 SR |
1459 | case 250: // XVP |
1460 | return this._handle_xvp_msg(); | |
3df13262 | 1461 | |
6d6f0db0 | 1462 | default: |
d472f3f1 | 1463 | this._fail("Unexpected server message (type " + msg_type + ")"); |
6d6f0db0 SR |
1464 | Log.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30)); |
1465 | return true; | |
1466 | } | |
1467 | }, | |
3df13262 | 1468 | |
6d6f0db0 SR |
1469 | _onFlush: function() { |
1470 | this._flushing = false; | |
1471 | // Resume processing | |
1472 | if (this._sock.rQlen() > 0) { | |
1473 | this._handle_message(); | |
1474 | } | |
1475 | }, | |
3df13262 | 1476 | |
6d6f0db0 SR |
1477 | _framebufferUpdate: function () { |
1478 | var ret = true; | |
1479 | var now; | |
3df13262 | 1480 | |
6d6f0db0 SR |
1481 | if (this._FBU.rects === 0) { |
1482 | if (this._sock.rQwait("FBU header", 3, 1)) { return false; } | |
b1dee947 | 1483 | this._sock.rQskip8(); // Padding |
6d6f0db0 SR |
1484 | this._FBU.rects = this._sock.rQshift16(); |
1485 | this._FBU.bytes = 0; | |
1486 | this._timing.cur_fbu = 0; | |
1487 | if (this._timing.fbu_rt_start > 0) { | |
1488 | now = (new Date()).getTime(); | |
1489 | Log.Info("First FBU latency: " + (now - this._timing.fbu_rt_start)); | |
b1dee947 SR |
1490 | } |
1491 | ||
6d6f0db0 SR |
1492 | // Make sure the previous frame is fully rendered first |
1493 | // to avoid building up an excessive queue | |
1494 | if (this._display.pending()) { | |
1495 | this._flushing = true; | |
1496 | this._display.flush(); | |
1497 | return false; | |
1498 | } | |
1499 | } | |
b1dee947 | 1500 | |
6d6f0db0 SR |
1501 | while (this._FBU.rects > 0) { |
1502 | if (this._rfb_connection_state !== 'connected') { return false; } | |
b1dee947 | 1503 | |
6d6f0db0 SR |
1504 | if (this._sock.rQwait("FBU", this._FBU.bytes)) { return false; } |
1505 | if (this._FBU.bytes === 0) { | |
1506 | if (this._sock.rQwait("rect header", 12)) { return false; } | |
1507 | /* New FramebufferUpdate */ | |
b1dee947 | 1508 | |
6d6f0db0 SR |
1509 | var hdr = this._sock.rQshiftBytes(12); |
1510 | this._FBU.x = (hdr[0] << 8) + hdr[1]; | |
1511 | this._FBU.y = (hdr[2] << 8) + hdr[3]; | |
1512 | this._FBU.width = (hdr[4] << 8) + hdr[5]; | |
1513 | this._FBU.height = (hdr[6] << 8) + hdr[7]; | |
1514 | this._FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
1515 | (hdr[10] << 8) + hdr[11], 10); | |
b1dee947 | 1516 | |
49a81837 | 1517 | if (!this._encHandlers[this._FBU.encoding]) { |
d472f3f1 SM |
1518 | this._fail("Unsupported encoding (encoding: " + |
1519 | this._FBU.encoding + ")"); | |
6d6f0db0 SR |
1520 | return false; |
1521 | } | |
1522 | } | |
b1dee947 | 1523 | |
6d6f0db0 | 1524 | this._timing.last_fbu = (new Date()).getTime(); |
76a86ff5 | 1525 | |
6d6f0db0 | 1526 | ret = this._encHandlers[this._FBU.encoding](); |
3df13262 | 1527 | |
6d6f0db0 SR |
1528 | now = (new Date()).getTime(); |
1529 | this._timing.cur_fbu += (now - this._timing.last_fbu); | |
b1dee947 | 1530 | |
6d6f0db0 | 1531 | if (ret) { |
c3386227 PO |
1532 | if (!(this._FBU.encoding in this._encStats)) { |
1533 | this._encStats[this._FBU.encoding] = [0, 0]; | |
1534 | } | |
6d6f0db0 SR |
1535 | this._encStats[this._FBU.encoding][0]++; |
1536 | this._encStats[this._FBU.encoding][1]++; | |
1537 | this._timing.pixels += this._FBU.width * this._FBU.height; | |
b1dee947 | 1538 | } |
b1dee947 | 1539 | |
6d6f0db0 SR |
1540 | if (this._timing.pixels >= (this._fb_width * this._fb_height)) { |
1541 | if ((this._FBU.width === this._fb_width && this._FBU.height === this._fb_height) || | |
1542 | this._timing.fbu_rt_start > 0) { | |
1543 | this._timing.full_fbu_total += this._timing.cur_fbu; | |
1544 | this._timing.full_fbu_cnt++; | |
1545 | Log.Info("Timing of full FBU, curr: " + | |
1546 | this._timing.cur_fbu + ", total: " + | |
1547 | this._timing.full_fbu_total + ", cnt: " + | |
1548 | this._timing.full_fbu_cnt + ", avg: " + | |
1549 | (this._timing.full_fbu_total / this._timing.full_fbu_cnt)); | |
b1dee947 | 1550 | } |
d9ca5e5b | 1551 | |
6d6f0db0 SR |
1552 | if (this._timing.fbu_rt_start > 0) { |
1553 | var fbu_rt_diff = now - this._timing.fbu_rt_start; | |
1554 | this._timing.fbu_rt_total += fbu_rt_diff; | |
1555 | this._timing.fbu_rt_cnt++; | |
1556 | Log.Info("full FBU round-trip, cur: " + | |
1557 | fbu_rt_diff + ", total: " + | |
1558 | this._timing.fbu_rt_total + ", cnt: " + | |
1559 | this._timing.fbu_rt_cnt + ", avg: " + | |
1560 | (this._timing.fbu_rt_total / this._timing.fbu_rt_cnt)); | |
1561 | this._timing.fbu_rt_start = 0; | |
d9ca5e5b | 1562 | } |
b1dee947 SR |
1563 | } |
1564 | ||
6d6f0db0 SR |
1565 | if (!ret) { return ret; } // need more data |
1566 | } | |
b1dee947 | 1567 | |
6d6f0db0 | 1568 | this._display.flip(); |
b1dee947 | 1569 | |
6d6f0db0 SR |
1570 | return true; // We finished this FBU |
1571 | }, | |
b1dee947 | 1572 | |
6d6f0db0 SR |
1573 | _updateContinuousUpdates: function() { |
1574 | if (!this._enabledContinuousUpdates) { return; } | |
b1dee947 | 1575 | |
6d6f0db0 SR |
1576 | RFB.messages.enableContinuousUpdates(this._sock, true, 0, 0, |
1577 | this._fb_width, this._fb_height); | |
91d5c625 PO |
1578 | }, |
1579 | ||
1580 | _resize: function(width, height) { | |
1581 | this._fb_width = width; | |
1582 | this._fb_height = height; | |
1583 | ||
1584 | this._destBuff = new Uint8Array(this._fb_width * this._fb_height * 4); | |
1585 | ||
1586 | this._display.resize(this._fb_width, this._fb_height); | |
e89eef94 | 1587 | |
9b84f516 PO |
1588 | // Adjust the visible viewport based on the new dimensions |
1589 | this._updateClip(); | |
1590 | this._updateScale(); | |
91d5c625 PO |
1591 | |
1592 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1593 | this._updateContinuousUpdates(); | |
cd523e8f | 1594 | }, |
8db09746 | 1595 | |
cd523e8f PO |
1596 | _xvpOp: function (ver, op) { |
1597 | if (this._rfb_xvp_ver < ver) { return; } | |
1598 | Log.Info("Sending XVP operation " + op + " (version " + ver + ")"); | |
1599 | RFB.messages.xvpOp(this._sock, ver, op); | |
1600 | }, | |
6d6f0db0 | 1601 | }; |
76a86ff5 | 1602 | |
e89eef94 | 1603 | Object.assign(RFB.prototype, EventTargetMixin); |
76a86ff5 | 1604 | |
6d6f0db0 SR |
1605 | // Class Methods |
1606 | RFB.messages = { | |
1607 | keyEvent: function (sock, keysym, down) { | |
1608 | var buff = sock._sQ; | |
1609 | var offset = sock._sQlen; | |
8db09746 | 1610 | |
6d6f0db0 SR |
1611 | buff[offset] = 4; // msg-type |
1612 | buff[offset + 1] = down; | |
b1dee947 | 1613 | |
6d6f0db0 SR |
1614 | buff[offset + 2] = 0; |
1615 | buff[offset + 3] = 0; | |
fb49f91b | 1616 | |
6d6f0db0 SR |
1617 | buff[offset + 4] = (keysym >> 24); |
1618 | buff[offset + 5] = (keysym >> 16); | |
1619 | buff[offset + 6] = (keysym >> 8); | |
1620 | buff[offset + 7] = keysym; | |
b1dee947 | 1621 | |
6d6f0db0 SR |
1622 | sock._sQlen += 8; |
1623 | sock.flush(); | |
1624 | }, | |
ef1e8bab | 1625 | |
6d6f0db0 SR |
1626 | QEMUExtendedKeyEvent: function (sock, keysym, down, keycode) { |
1627 | function getRFBkeycode(xt_scancode) { | |
1628 | var upperByte = (keycode >> 8); | |
1629 | var lowerByte = (keycode & 0x00ff); | |
1630 | if (upperByte === 0xe0 && lowerByte < 0x7f) { | |
1631 | lowerByte = lowerByte | 0x80; | |
1632 | return lowerByte; | |
ef1e8bab | 1633 | } |
6d6f0db0 | 1634 | return xt_scancode; |
ef1e8bab | 1635 | } |
b1dee947 | 1636 | |
6d6f0db0 SR |
1637 | var buff = sock._sQ; |
1638 | var offset = sock._sQlen; | |
8f06673a | 1639 | |
6d6f0db0 SR |
1640 | buff[offset] = 255; // msg-type |
1641 | buff[offset + 1] = 0; // sub msg-type | |
8f06673a | 1642 | |
6d6f0db0 SR |
1643 | buff[offset + 2] = (down >> 8); |
1644 | buff[offset + 3] = down; | |
8f06673a | 1645 | |
6d6f0db0 SR |
1646 | buff[offset + 4] = (keysym >> 24); |
1647 | buff[offset + 5] = (keysym >> 16); | |
1648 | buff[offset + 6] = (keysym >> 8); | |
1649 | buff[offset + 7] = keysym; | |
8f06673a | 1650 | |
6d6f0db0 | 1651 | var RFBkeycode = getRFBkeycode(keycode); |
8f06673a | 1652 | |
6d6f0db0 SR |
1653 | buff[offset + 8] = (RFBkeycode >> 24); |
1654 | buff[offset + 9] = (RFBkeycode >> 16); | |
1655 | buff[offset + 10] = (RFBkeycode >> 8); | |
1656 | buff[offset + 11] = RFBkeycode; | |
8f06673a | 1657 | |
6d6f0db0 SR |
1658 | sock._sQlen += 12; |
1659 | sock.flush(); | |
1660 | }, | |
8f06673a | 1661 | |
6d6f0db0 SR |
1662 | pointerEvent: function (sock, x, y, mask) { |
1663 | var buff = sock._sQ; | |
1664 | var offset = sock._sQlen; | |
8f06673a | 1665 | |
6d6f0db0 | 1666 | buff[offset] = 5; // msg-type |
9ff86fb7 | 1667 | |
6d6f0db0 | 1668 | buff[offset + 1] = mask; |
9ff86fb7 | 1669 | |
6d6f0db0 SR |
1670 | buff[offset + 2] = x >> 8; |
1671 | buff[offset + 3] = x; | |
9ff86fb7 | 1672 | |
6d6f0db0 SR |
1673 | buff[offset + 4] = y >> 8; |
1674 | buff[offset + 5] = y; | |
9ff86fb7 | 1675 | |
6d6f0db0 SR |
1676 | sock._sQlen += 6; |
1677 | sock.flush(); | |
1678 | }, | |
9ff86fb7 | 1679 | |
6d6f0db0 SR |
1680 | // TODO(directxman12): make this unicode compatible? |
1681 | clientCutText: function (sock, text) { | |
1682 | var buff = sock._sQ; | |
1683 | var offset = sock._sQlen; | |
b1dee947 | 1684 | |
6d6f0db0 | 1685 | buff[offset] = 6; // msg-type |
9ff86fb7 | 1686 | |
6d6f0db0 SR |
1687 | buff[offset + 1] = 0; // padding |
1688 | buff[offset + 2] = 0; // padding | |
1689 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1690 | |
2bb8b28d | 1691 | let length = text.length; |
9ff86fb7 | 1692 | |
2bb8b28d SM |
1693 | buff[offset + 4] = length >> 24; |
1694 | buff[offset + 5] = length >> 16; | |
1695 | buff[offset + 6] = length >> 8; | |
1696 | buff[offset + 7] = length; | |
9ff86fb7 | 1697 | |
2bb8b28d | 1698 | sock._sQlen += 8; |
9ff86fb7 | 1699 | |
2bb8b28d SM |
1700 | // We have to keep track of from where in the text we begin creating the |
1701 | // buffer for the flush in the next iteration. | |
1702 | let textOffset = 0; | |
1703 | ||
1704 | let remaining = length; | |
1705 | while (remaining > 0) { | |
1706 | ||
1707 | let flushSize = Math.min(remaining, (sock._sQbufferSize - sock._sQlen)); | |
1708 | if (flushSize <= 0) { | |
1709 | this._fail("Clipboard contents could not be sent"); | |
1710 | break; | |
1711 | } | |
1712 | ||
1713 | offset = sock._sQlen; | |
1714 | ||
1715 | for (let i = 0; i < flushSize; i++) { | |
1716 | buff[offset + i] = text.charCodeAt(textOffset + i); | |
1717 | } | |
1718 | ||
1719 | sock._sQlen += flushSize; | |
1720 | sock.flush(); | |
1721 | ||
1722 | remaining -= flushSize; | |
1723 | textOffset += flushSize; | |
1724 | } | |
6d6f0db0 SR |
1725 | }, |
1726 | ||
1727 | setDesktopSize: function (sock, width, height, id, flags) { | |
1728 | var buff = sock._sQ; | |
1729 | var offset = sock._sQlen; | |
1730 | ||
1731 | buff[offset] = 251; // msg-type | |
1732 | buff[offset + 1] = 0; // padding | |
1733 | buff[offset + 2] = width >> 8; // width | |
1734 | buff[offset + 3] = width; | |
1735 | buff[offset + 4] = height >> 8; // height | |
1736 | buff[offset + 5] = height; | |
1737 | ||
1738 | buff[offset + 6] = 1; // number-of-screens | |
1739 | buff[offset + 7] = 0; // padding | |
1740 | ||
1741 | // screen array | |
1742 | buff[offset + 8] = id >> 24; // id | |
1743 | buff[offset + 9] = id >> 16; | |
1744 | buff[offset + 10] = id >> 8; | |
1745 | buff[offset + 11] = id; | |
1746 | buff[offset + 12] = 0; // x-position | |
1747 | buff[offset + 13] = 0; | |
1748 | buff[offset + 14] = 0; // y-position | |
1749 | buff[offset + 15] = 0; | |
1750 | buff[offset + 16] = width >> 8; // width | |
1751 | buff[offset + 17] = width; | |
1752 | buff[offset + 18] = height >> 8; // height | |
1753 | buff[offset + 19] = height; | |
1754 | buff[offset + 20] = flags >> 24; // flags | |
1755 | buff[offset + 21] = flags >> 16; | |
1756 | buff[offset + 22] = flags >> 8; | |
1757 | buff[offset + 23] = flags; | |
1758 | ||
1759 | sock._sQlen += 24; | |
1760 | sock.flush(); | |
1761 | }, | |
1762 | ||
1763 | clientFence: function (sock, flags, payload) { | |
1764 | var buff = sock._sQ; | |
1765 | var offset = sock._sQlen; | |
1766 | ||
1767 | buff[offset] = 248; // msg-type | |
1768 | ||
1769 | buff[offset + 1] = 0; // padding | |
1770 | buff[offset + 2] = 0; // padding | |
1771 | buff[offset + 3] = 0; // padding | |
1772 | ||
1773 | buff[offset + 4] = flags >> 24; // flags | |
1774 | buff[offset + 5] = flags >> 16; | |
1775 | buff[offset + 6] = flags >> 8; | |
1776 | buff[offset + 7] = flags; | |
1777 | ||
1778 | var n = payload.length; | |
1779 | ||
1780 | buff[offset + 8] = n; // length | |
1781 | ||
1782 | for (var i = 0; i < n; i++) { | |
1783 | buff[offset + 9 + i] = payload.charCodeAt(i); | |
1784 | } | |
a7a89626 | 1785 | |
6d6f0db0 SR |
1786 | sock._sQlen += 9 + n; |
1787 | sock.flush(); | |
1788 | }, | |
3df13262 | 1789 | |
6d6f0db0 SR |
1790 | enableContinuousUpdates: function (sock, enable, x, y, width, height) { |
1791 | var buff = sock._sQ; | |
1792 | var offset = sock._sQlen; | |
3df13262 | 1793 | |
6d6f0db0 SR |
1794 | buff[offset] = 150; // msg-type |
1795 | buff[offset + 1] = enable; // enable-flag | |
76a86ff5 | 1796 | |
6d6f0db0 SR |
1797 | buff[offset + 2] = x >> 8; // x |
1798 | buff[offset + 3] = x; | |
1799 | buff[offset + 4] = y >> 8; // y | |
1800 | buff[offset + 5] = y; | |
1801 | buff[offset + 6] = width >> 8; // width | |
1802 | buff[offset + 7] = width; | |
1803 | buff[offset + 8] = height >> 8; // height | |
1804 | buff[offset + 9] = height; | |
76a86ff5 | 1805 | |
6d6f0db0 SR |
1806 | sock._sQlen += 10; |
1807 | sock.flush(); | |
1808 | }, | |
76a86ff5 | 1809 | |
5a5f5ada | 1810 | pixelFormat: function (sock, depth, true_color) { |
6d6f0db0 SR |
1811 | var buff = sock._sQ; |
1812 | var offset = sock._sQlen; | |
ae116051 | 1813 | |
5a5f5ada PO |
1814 | var bpp, bits; |
1815 | ||
1816 | if (depth > 16) { | |
1817 | bpp = 32; | |
1818 | } else if (depth > 8) { | |
1819 | bpp = 16; | |
1820 | } else { | |
1821 | bpp = 8; | |
1822 | } | |
1823 | ||
1824 | bits = Math.floor(depth/3); | |
1825 | ||
6d6f0db0 | 1826 | buff[offset] = 0; // msg-type |
9ff86fb7 | 1827 | |
6d6f0db0 SR |
1828 | buff[offset + 1] = 0; // padding |
1829 | buff[offset + 2] = 0; // padding | |
1830 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1831 | |
5a5f5ada PO |
1832 | buff[offset + 4] = bpp; // bits-per-pixel |
1833 | buff[offset + 5] = depth; // depth | |
6d6f0db0 SR |
1834 | buff[offset + 6] = 0; // little-endian |
1835 | buff[offset + 7] = true_color ? 1 : 0; // true-color | |
9ff86fb7 | 1836 | |
6d6f0db0 | 1837 | buff[offset + 8] = 0; // red-max |
5a5f5ada | 1838 | buff[offset + 9] = (1 << bits) - 1; // red-max |
9ff86fb7 | 1839 | |
6d6f0db0 | 1840 | buff[offset + 10] = 0; // green-max |
5a5f5ada | 1841 | buff[offset + 11] = (1 << bits) - 1; // green-max |
9ff86fb7 | 1842 | |
6d6f0db0 | 1843 | buff[offset + 12] = 0; // blue-max |
5a5f5ada | 1844 | buff[offset + 13] = (1 << bits) - 1; // blue-max |
9ff86fb7 | 1845 | |
5a5f5ada PO |
1846 | buff[offset + 14] = bits * 2; // red-shift |
1847 | buff[offset + 15] = bits * 1; // green-shift | |
1848 | buff[offset + 16] = bits * 0; // blue-shift | |
9ff86fb7 | 1849 | |
6d6f0db0 SR |
1850 | buff[offset + 17] = 0; // padding |
1851 | buff[offset + 18] = 0; // padding | |
1852 | buff[offset + 19] = 0; // padding | |
9ff86fb7 | 1853 | |
6d6f0db0 SR |
1854 | sock._sQlen += 20; |
1855 | sock.flush(); | |
1856 | }, | |
9ff86fb7 | 1857 | |
49a81837 | 1858 | clientEncodings: function (sock, encodings) { |
6d6f0db0 SR |
1859 | var buff = sock._sQ; |
1860 | var offset = sock._sQlen; | |
b1dee947 | 1861 | |
6d6f0db0 SR |
1862 | buff[offset] = 2; // msg-type |
1863 | buff[offset + 1] = 0; // padding | |
b1dee947 | 1864 | |
49a81837 PO |
1865 | buff[offset + 2] = encodings.length >> 8; |
1866 | buff[offset + 3] = encodings.length; | |
9ff86fb7 | 1867 | |
49a81837 | 1868 | var i, j = offset + 4; |
6d6f0db0 | 1869 | for (i = 0; i < encodings.length; i++) { |
49a81837 PO |
1870 | var enc = encodings[i]; |
1871 | buff[j] = enc >> 24; | |
1872 | buff[j + 1] = enc >> 16; | |
1873 | buff[j + 2] = enc >> 8; | |
1874 | buff[j + 3] = enc; | |
a7a89626 | 1875 | |
49a81837 PO |
1876 | j += 4; |
1877 | } | |
a7a89626 | 1878 | |
6d6f0db0 SR |
1879 | sock._sQlen += j - offset; |
1880 | sock.flush(); | |
1881 | }, | |
a679a97d | 1882 | |
6d6f0db0 SR |
1883 | fbUpdateRequest: function (sock, incremental, x, y, w, h) { |
1884 | var buff = sock._sQ; | |
1885 | var offset = sock._sQlen; | |
9ff86fb7 | 1886 | |
6d6f0db0 SR |
1887 | if (typeof(x) === "undefined") { x = 0; } |
1888 | if (typeof(y) === "undefined") { y = 0; } | |
b1dee947 | 1889 | |
6d6f0db0 SR |
1890 | buff[offset] = 3; // msg-type |
1891 | buff[offset + 1] = incremental ? 1 : 0; | |
9ff86fb7 | 1892 | |
6d6f0db0 SR |
1893 | buff[offset + 2] = (x >> 8) & 0xFF; |
1894 | buff[offset + 3] = x & 0xFF; | |
9ff86fb7 | 1895 | |
6d6f0db0 SR |
1896 | buff[offset + 4] = (y >> 8) & 0xFF; |
1897 | buff[offset + 5] = y & 0xFF; | |
9ff86fb7 | 1898 | |
6d6f0db0 SR |
1899 | buff[offset + 6] = (w >> 8) & 0xFF; |
1900 | buff[offset + 7] = w & 0xFF; | |
9ff86fb7 | 1901 | |
6d6f0db0 SR |
1902 | buff[offset + 8] = (h >> 8) & 0xFF; |
1903 | buff[offset + 9] = h & 0xFF; | |
b1dee947 | 1904 | |
6d6f0db0 SR |
1905 | sock._sQlen += 10; |
1906 | sock.flush(); | |
85b35fc0 PO |
1907 | }, |
1908 | ||
1909 | xvpOp: function (sock, ver, op) { | |
1910 | var buff = sock._sQ; | |
1911 | var offset = sock._sQlen; | |
1912 | ||
1913 | buff[offset] = 250; // msg-type | |
1914 | buff[offset + 1] = 0; // padding | |
1915 | ||
1916 | buff[offset + 2] = ver; | |
1917 | buff[offset + 3] = op; | |
1918 | ||
1919 | sock._sQlen += 4; | |
1920 | sock.flush(); | |
1921 | }, | |
6d6f0db0 | 1922 | }; |
b1dee947 | 1923 | |
6d6f0db0 SR |
1924 | RFB.genDES = function (password, challenge) { |
1925 | var passwd = []; | |
1926 | for (var i = 0; i < password.length; i++) { | |
1927 | passwd.push(password.charCodeAt(i)); | |
1928 | } | |
1929 | return (new DES(passwd)).encrypt(challenge); | |
1930 | }; | |
b1dee947 | 1931 | |
6d6f0db0 SR |
1932 | RFB.encodingHandlers = { |
1933 | RAW: function () { | |
1934 | if (this._FBU.lines === 0) { | |
1935 | this._FBU.lines = this._FBU.height; | |
1936 | } | |
a7a89626 | 1937 | |
5a5f5ada PO |
1938 | var pixelSize = this._fb_depth == 8 ? 1 : 4; |
1939 | this._FBU.bytes = this._FBU.width * pixelSize; // at least a line | |
6d6f0db0 SR |
1940 | if (this._sock.rQwait("RAW", this._FBU.bytes)) { return false; } |
1941 | var cur_y = this._FBU.y + (this._FBU.height - this._FBU.lines); | |
1942 | var curr_height = Math.min(this._FBU.lines, | |
5a5f5ada PO |
1943 | Math.floor(this._sock.rQlen() / (this._FBU.width * pixelSize))); |
1944 | var data = this._sock.get_rQ(); | |
1945 | var index = this._sock.get_rQi(); | |
1946 | if (this._fb_depth == 8) { | |
1947 | var pixels = this._FBU.width * curr_height | |
1948 | var newdata = new Uint8Array(pixels * 4); | |
1949 | var i; | |
1950 | for (i = 0;i < pixels;i++) { | |
1951 | newdata[i * 4 + 0] = ((data[index + i] >> 0) & 0x3) * 255 / 3; | |
1952 | newdata[i * 4 + 1] = ((data[index + i] >> 2) & 0x3) * 255 / 3; | |
1953 | newdata[i * 4 + 2] = ((data[index + i] >> 4) & 0x3) * 255 / 3; | |
1954 | newdata[i * 4 + 4] = 0; | |
1955 | } | |
1956 | data = newdata; | |
1957 | index = 0; | |
1958 | } | |
6d6f0db0 | 1959 | this._display.blitImage(this._FBU.x, cur_y, this._FBU.width, |
5a5f5ada PO |
1960 | curr_height, data, index); |
1961 | this._sock.rQskipBytes(this._FBU.width * curr_height * pixelSize); | |
6d6f0db0 SR |
1962 | this._FBU.lines -= curr_height; |
1963 | ||
1964 | if (this._FBU.lines > 0) { | |
5a5f5ada | 1965 | this._FBU.bytes = this._FBU.width * pixelSize; // At least another line |
6d6f0db0 SR |
1966 | } else { |
1967 | this._FBU.rects--; | |
1968 | this._FBU.bytes = 0; | |
1969 | } | |
b1dee947 | 1970 | |
6d6f0db0 SR |
1971 | return true; |
1972 | }, | |
1973 | ||
1974 | COPYRECT: function () { | |
1975 | this._FBU.bytes = 4; | |
1976 | if (this._sock.rQwait("COPYRECT", 4)) { return false; } | |
1977 | this._display.copyImage(this._sock.rQshift16(), this._sock.rQshift16(), | |
1978 | this._FBU.x, this._FBU.y, this._FBU.width, | |
1979 | this._FBU.height); | |
1980 | ||
1981 | this._FBU.rects--; | |
1982 | this._FBU.bytes = 0; | |
1983 | return true; | |
1984 | }, | |
1985 | ||
1986 | RRE: function () { | |
1987 | var color; | |
1988 | if (this._FBU.subrects === 0) { | |
26586b9d PO |
1989 | this._FBU.bytes = 4 + 4; |
1990 | if (this._sock.rQwait("RRE", 4 + 4)) { return false; } | |
6d6f0db0 | 1991 | this._FBU.subrects = this._sock.rQshift32(); |
26586b9d | 1992 | color = this._sock.rQshiftBytes(4); // Background |
6d6f0db0 SR |
1993 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, color); |
1994 | } | |
b1dee947 | 1995 | |
26586b9d PO |
1996 | while (this._FBU.subrects > 0 && this._sock.rQlen() >= (4 + 8)) { |
1997 | color = this._sock.rQshiftBytes(4); | |
6d6f0db0 SR |
1998 | var x = this._sock.rQshift16(); |
1999 | var y = this._sock.rQshift16(); | |
2000 | var width = this._sock.rQshift16(); | |
2001 | var height = this._sock.rQshift16(); | |
2002 | this._display.fillRect(this._FBU.x + x, this._FBU.y + y, width, height, color); | |
2003 | this._FBU.subrects--; | |
2004 | } | |
f00193e0 | 2005 | |
6d6f0db0 SR |
2006 | if (this._FBU.subrects > 0) { |
2007 | var chunk = Math.min(this._rre_chunk_sz, this._FBU.subrects); | |
26586b9d | 2008 | this._FBU.bytes = (4 + 8) * chunk; |
6d6f0db0 | 2009 | } else { |
b1dee947 SR |
2010 | this._FBU.rects--; |
2011 | this._FBU.bytes = 0; | |
6d6f0db0 | 2012 | } |
b1dee947 | 2013 | |
6d6f0db0 SR |
2014 | return true; |
2015 | }, | |
b1dee947 | 2016 | |
6d6f0db0 SR |
2017 | HEXTILE: function () { |
2018 | var rQ = this._sock.get_rQ(); | |
2019 | var rQi = this._sock.get_rQi(); | |
b1dee947 | 2020 | |
6d6f0db0 SR |
2021 | if (this._FBU.tiles === 0) { |
2022 | this._FBU.tiles_x = Math.ceil(this._FBU.width / 16); | |
2023 | this._FBU.tiles_y = Math.ceil(this._FBU.height / 16); | |
2024 | this._FBU.total_tiles = this._FBU.tiles_x * this._FBU.tiles_y; | |
2025 | this._FBU.tiles = this._FBU.total_tiles; | |
2026 | } | |
b1dee947 | 2027 | |
6d6f0db0 SR |
2028 | while (this._FBU.tiles > 0) { |
2029 | this._FBU.bytes = 1; | |
2030 | if (this._sock.rQwait("HEXTILE subencoding", this._FBU.bytes)) { return false; } | |
2031 | var subencoding = rQ[rQi]; // Peek | |
2032 | if (subencoding > 30) { // Raw | |
d472f3f1 SM |
2033 | this._fail("Illegal hextile subencoding (subencoding: " + |
2034 | subencoding + ")"); | |
6d6f0db0 | 2035 | return false; |
b1dee947 SR |
2036 | } |
2037 | ||
6d6f0db0 SR |
2038 | var subrects = 0; |
2039 | var curr_tile = this._FBU.total_tiles - this._FBU.tiles; | |
2040 | var tile_x = curr_tile % this._FBU.tiles_x; | |
2041 | var tile_y = Math.floor(curr_tile / this._FBU.tiles_x); | |
2042 | var x = this._FBU.x + tile_x * 16; | |
2043 | var y = this._FBU.y + tile_y * 16; | |
2044 | var w = Math.min(16, (this._FBU.x + this._FBU.width) - x); | |
2045 | var h = Math.min(16, (this._FBU.y + this._FBU.height) - y); | |
b1dee947 | 2046 | |
6d6f0db0 SR |
2047 | // Figure out how much we are expecting |
2048 | if (subencoding & 0x01) { // Raw | |
26586b9d | 2049 | this._FBU.bytes += w * h * 4; |
6d6f0db0 SR |
2050 | } else { |
2051 | if (subencoding & 0x02) { // Background | |
26586b9d | 2052 | this._FBU.bytes += 4; |
6d6f0db0 SR |
2053 | } |
2054 | if (subencoding & 0x04) { // Foreground | |
26586b9d | 2055 | this._FBU.bytes += 4; |
6d6f0db0 SR |
2056 | } |
2057 | if (subencoding & 0x08) { // AnySubrects | |
2058 | this._FBU.bytes++; // Since we aren't shifting it off | |
2059 | if (this._sock.rQwait("hextile subrects header", this._FBU.bytes)) { return false; } | |
2060 | subrects = rQ[rQi + this._FBU.bytes - 1]; // Peek | |
2061 | if (subencoding & 0x10) { // SubrectsColoured | |
26586b9d | 2062 | this._FBU.bytes += subrects * (4 + 2); |
6d6f0db0 SR |
2063 | } else { |
2064 | this._FBU.bytes += subrects * 2; | |
b1dee947 SR |
2065 | } |
2066 | } | |
6d6f0db0 | 2067 | } |
b1dee947 | 2068 | |
6d6f0db0 | 2069 | if (this._sock.rQwait("hextile", this._FBU.bytes)) { return false; } |
b1dee947 | 2070 | |
6d6f0db0 SR |
2071 | // We know the encoding and have a whole tile |
2072 | this._FBU.subencoding = rQ[rQi]; | |
2073 | rQi++; | |
2074 | if (this._FBU.subencoding === 0) { | |
2075 | if (this._FBU.lastsubencoding & 0x01) { | |
2076 | // Weird: ignore blanks are RAW | |
2077 | Log.Debug(" Ignoring blank after RAW"); | |
b1dee947 | 2078 | } else { |
6d6f0db0 SR |
2079 | this._display.fillRect(x, y, w, h, this._FBU.background); |
2080 | } | |
2081 | } else if (this._FBU.subencoding & 0x01) { // Raw | |
2082 | this._display.blitImage(x, y, w, h, rQ, rQi); | |
2083 | rQi += this._FBU.bytes - 1; | |
2084 | } else { | |
2085 | if (this._FBU.subencoding & 0x02) { // Background | |
26586b9d PO |
2086 | this._FBU.background = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2087 | rQi += 4; | |
6d6f0db0 SR |
2088 | } |
2089 | if (this._FBU.subencoding & 0x04) { // Foreground | |
26586b9d PO |
2090 | this._FBU.foreground = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2091 | rQi += 4; | |
6d6f0db0 | 2092 | } |
b1dee947 | 2093 | |
6d6f0db0 SR |
2094 | this._display.startTile(x, y, w, h, this._FBU.background); |
2095 | if (this._FBU.subencoding & 0x08) { // AnySubrects | |
2096 | subrects = rQ[rQi]; | |
2097 | rQi++; | |
b1dee947 | 2098 | |
6d6f0db0 SR |
2099 | for (var s = 0; s < subrects; s++) { |
2100 | var color; | |
2101 | if (this._FBU.subencoding & 0x10) { // SubrectsColoured | |
26586b9d PO |
2102 | color = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2103 | rQi += 4; | |
6d6f0db0 SR |
2104 | } else { |
2105 | color = this._FBU.foreground; | |
2106 | } | |
2107 | var xy = rQ[rQi]; | |
2108 | rQi++; | |
2109 | var sx = (xy >> 4); | |
2110 | var sy = (xy & 0x0f); | |
a7a89626 | 2111 | |
6d6f0db0 SR |
2112 | var wh = rQ[rQi]; |
2113 | rQi++; | |
2114 | var sw = (wh >> 4) + 1; | |
2115 | var sh = (wh & 0x0f) + 1; | |
a7a89626 | 2116 | |
6d6f0db0 | 2117 | this._display.subTile(sx, sy, sw, sh, color); |
b1dee947 | 2118 | } |
a7a89626 | 2119 | } |
6d6f0db0 | 2120 | this._display.finishTile(); |
a7a89626 | 2121 | } |
6d6f0db0 SR |
2122 | this._sock.set_rQi(rQi); |
2123 | this._FBU.lastsubencoding = this._FBU.subencoding; | |
2124 | this._FBU.bytes = 0; | |
2125 | this._FBU.tiles--; | |
2126 | } | |
d065cad9 | 2127 | |
6d6f0db0 SR |
2128 | if (this._FBU.tiles === 0) { |
2129 | this._FBU.rects--; | |
2130 | } | |
b1dee947 | 2131 | |
6d6f0db0 SR |
2132 | return true; |
2133 | }, | |
b1dee947 | 2134 | |
5bdcf5d3 | 2135 | TIGHT: function (isTightPNG) { |
6d6f0db0 SR |
2136 | this._FBU.bytes = 1; // compression-control byte |
2137 | if (this._sock.rQwait("TIGHT compression-control", this._FBU.bytes)) { return false; } | |
2138 | ||
2139 | var checksum = function (data) { | |
2140 | var sum = 0; | |
2141 | for (var i = 0; i < data.length; i++) { | |
2142 | sum += data[i]; | |
2143 | if (sum > 65536) sum -= 65536; | |
2144 | } | |
2145 | return sum; | |
2146 | }; | |
2147 | ||
2148 | var resetStreams = 0; | |
2149 | var streamId = -1; | |
2150 | var decompress = function (data, expected) { | |
2151 | for (var i = 0; i < 4; i++) { | |
2152 | if ((resetStreams >> i) & 1) { | |
2153 | this._FBU.zlibs[i].reset(); | |
2154 | Log.Info("Reset zlib stream " + i); | |
b1dee947 | 2155 | } |
6d6f0db0 | 2156 | } |
de84e098 | 2157 | |
6d6f0db0 SR |
2158 | //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0); |
2159 | var uncompressed = this._FBU.zlibs[streamId].inflate(data, true, expected); | |
2160 | /*if (uncompressed.status !== 0) { | |
2161 | Log.Error("Invalid data in zlib stream"); | |
2162 | }*/ | |
2163 | ||
2164 | //return uncompressed.data; | |
2165 | return uncompressed; | |
2166 | }.bind(this); | |
2167 | ||
2168 | var indexedToRGBX2Color = function (data, palette, width, height) { | |
2169 | // Convert indexed (palette based) image data to RGB | |
2170 | // TODO: reduce number of calculations inside loop | |
2171 | var dest = this._destBuff; | |
2172 | var w = Math.floor((width + 7) / 8); | |
2173 | var w1 = Math.floor(width / 8); | |
2174 | ||
2175 | /*for (var y = 0; y < height; y++) { | |
2176 | var b, x, dp, sp; | |
2177 | var yoffset = y * width; | |
2178 | var ybitoffset = y * w; | |
2179 | var xoffset, targetbyte; | |
2180 | for (x = 0; x < w1; x++) { | |
d1800d09 SR |
2181 | xoffset = yoffset + x * 8; |
2182 | targetbyte = data[ybitoffset + x]; | |
6d6f0db0 | 2183 | for (b = 7; b >= 0; b--) { |
d1800d09 SR |
2184 | dp = (xoffset + 7 - b) * 3; |
2185 | sp = (targetbyte >> b & 1) * 3; | |
2186 | dest[dp] = palette[sp]; | |
2187 | dest[dp + 1] = palette[sp + 1]; | |
2188 | dest[dp + 2] = palette[sp + 2]; | |
2189 | } | |
6d6f0db0 SR |
2190 | } |
2191 | ||
2192 | xoffset = yoffset + x * 8; | |
2193 | targetbyte = data[ybitoffset + x]; | |
2194 | for (b = 7; b >= 8 - width % 8; b--) { | |
2195 | dp = (xoffset + 7 - b) * 3; | |
2196 | sp = (targetbyte >> b & 1) * 3; | |
2197 | dest[dp] = palette[sp]; | |
2198 | dest[dp + 1] = palette[sp + 1]; | |
2199 | dest[dp + 2] = palette[sp + 2]; | |
2200 | } | |
2201 | }*/ | |
d1800d09 | 2202 | |
6d6f0db0 SR |
2203 | for (var y = 0; y < height; y++) { |
2204 | var b, x, dp, sp; | |
2205 | for (x = 0; x < w1; x++) { | |
2206 | for (b = 7; b >= 0; b--) { | |
d1800d09 SR |
2207 | dp = (y * width + x * 8 + 7 - b) * 4; |
2208 | sp = (data[y * w + x] >> b & 1) * 3; | |
2209 | dest[dp] = palette[sp]; | |
2210 | dest[dp + 1] = palette[sp + 1]; | |
2211 | dest[dp + 2] = palette[sp + 2]; | |
2212 | dest[dp + 3] = 255; | |
e16ad2fd JM |
2213 | } |
2214 | } | |
b1dee947 | 2215 | |
6d6f0db0 SR |
2216 | for (b = 7; b >= 8 - width % 8; b--) { |
2217 | dp = (y * width + x * 8 + 7 - b) * 4; | |
2218 | sp = (data[y * w + x] >> b & 1) * 3; | |
2219 | dest[dp] = palette[sp]; | |
2220 | dest[dp + 1] = palette[sp + 1]; | |
2221 | dest[dp + 2] = palette[sp + 2]; | |
2222 | dest[dp + 3] = 255; | |
d1800d09 | 2223 | } |
6d6f0db0 | 2224 | } |
d1800d09 | 2225 | |
6d6f0db0 SR |
2226 | return dest; |
2227 | }.bind(this); | |
2228 | ||
2229 | var indexedToRGBX = function (data, palette, width, height) { | |
2230 | // Convert indexed (palette based) image data to RGB | |
2231 | var dest = this._destBuff; | |
2232 | var total = width * height * 4; | |
2233 | for (var i = 0, j = 0; i < total; i += 4, j++) { | |
2234 | var sp = data[j] * 3; | |
2235 | dest[i] = palette[sp]; | |
2236 | dest[i + 1] = palette[sp + 1]; | |
2237 | dest[i + 2] = palette[sp + 2]; | |
2238 | dest[i + 3] = 255; | |
2239 | } | |
2240 | ||
2241 | return dest; | |
2242 | }.bind(this); | |
2243 | ||
2244 | var rQi = this._sock.get_rQi(); | |
2245 | var rQ = this._sock.rQwhole(); | |
2246 | var cmode, data; | |
2247 | var cl_header, cl_data; | |
2248 | ||
2249 | var handlePalette = function () { | |
2250 | var numColors = rQ[rQi + 2] + 1; | |
26586b9d | 2251 | var paletteSize = numColors * 3; |
6d6f0db0 SR |
2252 | this._FBU.bytes += paletteSize; |
2253 | if (this._sock.rQwait("TIGHT palette " + cmode, this._FBU.bytes)) { return false; } | |
2254 | ||
2255 | var bpp = (numColors <= 2) ? 1 : 8; | |
2256 | var rowSize = Math.floor((this._FBU.width * bpp + 7) / 8); | |
2257 | var raw = false; | |
2258 | if (rowSize * this._FBU.height < 12) { | |
2259 | raw = true; | |
2260 | cl_header = 0; | |
2261 | cl_data = rowSize * this._FBU.height; | |
2262 | //clength = [0, rowSize * this._FBU.height]; | |
2263 | } else { | |
2264 | // begin inline getTightCLength (returning two-item arrays is bad for performance with GC) | |
2265 | var cl_offset = rQi + 3 + paletteSize; | |
2266 | cl_header = 1; | |
2267 | cl_data = 0; | |
2268 | cl_data += rQ[cl_offset] & 0x7f; | |
2269 | if (rQ[cl_offset] & 0x80) { | |
2270 | cl_header++; | |
2271 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2272 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2273 | cl_header++; |
6d6f0db0 | 2274 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2275 | } |
e16ad2fd | 2276 | } |
6d6f0db0 SR |
2277 | // end inline getTightCLength |
2278 | } | |
b1dee947 | 2279 | |
6d6f0db0 SR |
2280 | this._FBU.bytes += cl_header + cl_data; |
2281 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2282 | |
6d6f0db0 SR |
2283 | // Shift ctl, filter id, num colors, palette entries, and clength off |
2284 | this._sock.rQskipBytes(3); | |
2285 | //var palette = this._sock.rQshiftBytes(paletteSize); | |
2286 | this._sock.rQshiftTo(this._paletteBuff, paletteSize); | |
2287 | this._sock.rQskipBytes(cl_header); | |
b1dee947 | 2288 | |
6d6f0db0 SR |
2289 | if (raw) { |
2290 | data = this._sock.rQshiftBytes(cl_data); | |
2291 | } else { | |
2292 | data = decompress(this._sock.rQshiftBytes(cl_data), rowSize * this._FBU.height); | |
2293 | } | |
b1dee947 | 2294 | |
6d6f0db0 SR |
2295 | // Convert indexed (palette based) image data to RGB |
2296 | var rgbx; | |
2297 | if (numColors == 2) { | |
2298 | rgbx = indexedToRGBX2Color(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2299 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2300 | } else { | |
2301 | rgbx = indexedToRGBX(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2302 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2303 | } | |
b1dee947 | 2304 | |
b1dee947 | 2305 | |
6d6f0db0 SR |
2306 | return true; |
2307 | }.bind(this); | |
2308 | ||
2309 | var handleCopy = function () { | |
2310 | var raw = false; | |
26586b9d | 2311 | var uncompressedSize = this._FBU.width * this._FBU.height * 3; |
6d6f0db0 SR |
2312 | if (uncompressedSize < 12) { |
2313 | raw = true; | |
2314 | cl_header = 0; | |
2315 | cl_data = uncompressedSize; | |
2316 | } else { | |
2317 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2318 | var cl_offset = rQi + 1; | |
2319 | cl_header = 1; | |
2320 | cl_data = 0; | |
2321 | cl_data += rQ[cl_offset] & 0x7f; | |
2322 | if (rQ[cl_offset] & 0x80) { | |
2323 | cl_header++; | |
2324 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2325 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2326 | cl_header++; |
6d6f0db0 | 2327 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2328 | } |
b1dee947 | 2329 | } |
6d6f0db0 SR |
2330 | // end inline getTightCLength |
2331 | } | |
2332 | this._FBU.bytes = 1 + cl_header + cl_data; | |
2333 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2334 | |
6d6f0db0 SR |
2335 | // Shift ctl, clength off |
2336 | this._sock.rQshiftBytes(1 + cl_header); | |
b1dee947 | 2337 | |
6d6f0db0 SR |
2338 | if (raw) { |
2339 | data = this._sock.rQshiftBytes(cl_data); | |
2340 | } else { | |
2341 | data = decompress(this._sock.rQshiftBytes(cl_data), uncompressedSize); | |
2342 | } | |
b1dee947 | 2343 | |
6d6f0db0 | 2344 | this._display.blitRgbImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, data, 0, false); |
b1dee947 | 2345 | |
6d6f0db0 SR |
2346 | return true; |
2347 | }.bind(this); | |
b1dee947 | 2348 | |
6d6f0db0 | 2349 | var ctl = this._sock.rQpeek8(); |
b1dee947 | 2350 | |
6d6f0db0 SR |
2351 | // Keep tight reset bits |
2352 | resetStreams = ctl & 0xF; | |
b1dee947 | 2353 | |
6d6f0db0 SR |
2354 | // Figure out filter |
2355 | ctl = ctl >> 4; | |
2356 | streamId = ctl & 0x3; | |
b1dee947 | 2357 | |
6d6f0db0 SR |
2358 | if (ctl === 0x08) cmode = "fill"; |
2359 | else if (ctl === 0x09) cmode = "jpeg"; | |
2360 | else if (ctl === 0x0A) cmode = "png"; | |
2361 | else if (ctl & 0x04) cmode = "filter"; | |
2362 | else if (ctl < 0x04) cmode = "copy"; | |
d472f3f1 SM |
2363 | else return this._fail("Illegal tight compression received (ctl: " + |
2364 | ctl + ")"); | |
b1dee947 | 2365 | |
5bdcf5d3 PO |
2366 | if (isTightPNG && (ctl < 0x08)) { |
2367 | return this._fail("BasicCompression received in TightPNG rect"); | |
2368 | } | |
2369 | if (!isTightPNG && (ctl === 0x0A)) { | |
2370 | return this._fail("PNG received in standard Tight rect"); | |
2371 | } | |
2372 | ||
6d6f0db0 | 2373 | switch (cmode) { |
26586b9d | 2374 | // fill use depth because TPIXELs drop the padding byte |
6d6f0db0 | 2375 | case "fill": // TPIXEL |
26586b9d | 2376 | this._FBU.bytes += 3; |
6d6f0db0 SR |
2377 | break; |
2378 | case "jpeg": // max clength | |
2379 | this._FBU.bytes += 3; | |
2380 | break; | |
2381 | case "png": // max clength | |
2382 | this._FBU.bytes += 3; | |
2383 | break; | |
2384 | case "filter": // filter id + num colors if palette | |
2385 | this._FBU.bytes += 2; | |
2386 | break; | |
2387 | case "copy": | |
2388 | break; | |
2389 | } | |
d065cad9 | 2390 | |
6d6f0db0 | 2391 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } |
b1dee947 | 2392 | |
6d6f0db0 SR |
2393 | // Determine FBU.bytes |
2394 | switch (cmode) { | |
2395 | case "fill": | |
2396 | // skip ctl byte | |
2397 | 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); | |
2398 | this._sock.rQskipBytes(4); | |
2399 | break; | |
2400 | case "png": | |
2401 | case "jpeg": | |
2402 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2403 | var cl_offset = rQi + 1; | |
2404 | cl_header = 1; | |
2405 | cl_data = 0; | |
2406 | cl_data += rQ[cl_offset] & 0x7f; | |
2407 | if (rQ[cl_offset] & 0x80) { | |
2408 | cl_header++; | |
2409 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2410 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2411 | cl_header++; |
6d6f0db0 | 2412 | cl_data += rQ[cl_offset + 2] << 14; |
b1dee947 | 2413 | } |
6d6f0db0 SR |
2414 | } |
2415 | // end inline getTightCLength | |
2416 | this._FBU.bytes = 1 + cl_header + cl_data; // ctl + clength size + jpeg-data | |
2417 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
798340b9 | 2418 | |
6d6f0db0 SR |
2419 | // We have everything, render it |
2420 | this._sock.rQskipBytes(1 + cl_header); // shift off clt + compact length | |
2421 | data = this._sock.rQshiftBytes(cl_data); | |
2422 | this._display.imageRect(this._FBU.x, this._FBU.y, "image/" + cmode, data); | |
2423 | break; | |
2424 | case "filter": | |
2425 | var filterId = rQ[rQi + 1]; | |
2426 | if (filterId === 1) { | |
2427 | if (!handlePalette()) { return false; } | |
b0ec6509 | 2428 | } else { |
6d6f0db0 SR |
2429 | // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter |
2430 | // Filter 2, Gradient is valid but not use if jpeg is enabled | |
d472f3f1 SM |
2431 | this._fail("Unsupported tight subencoding received " + |
2432 | "(filter: " + filterId + ")"); | |
b0ec6509 | 2433 | } |
6d6f0db0 SR |
2434 | break; |
2435 | case "copy": | |
2436 | if (!handleCopy()) { return false; } | |
2437 | break; | |
2438 | } | |
b0ec6509 | 2439 | |
6d6f0db0 SR |
2440 | |
2441 | this._FBU.bytes = 0; | |
2442 | this._FBU.rects--; | |
2443 | ||
2444 | return true; | |
2445 | }, | |
2446 | ||
6d6f0db0 SR |
2447 | last_rect: function () { |
2448 | this._FBU.rects = 0; | |
2449 | return true; | |
2450 | }, | |
2451 | ||
6d6f0db0 SR |
2452 | ExtendedDesktopSize: function () { |
2453 | this._FBU.bytes = 1; | |
2454 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2455 | ||
9b84f516 | 2456 | var firstUpdate = !this._supportsSetDesktopSize; |
6d6f0db0 | 2457 | this._supportsSetDesktopSize = true; |
9b84f516 PO |
2458 | |
2459 | // Normally we only apply the current resize mode after a | |
2460 | // window resize event. However there is no such trigger on the | |
2461 | // initial connect. And we don't know if the server supports | |
2462 | // resizing until we've gotten here. | |
2463 | if (firstUpdate) { | |
2464 | this._requestRemoteResize(); | |
2465 | } | |
832be262 | 2466 | |
6d6f0db0 SR |
2467 | var number_of_screens = this._sock.rQpeek8(); |
2468 | ||
2469 | this._FBU.bytes = 4 + (number_of_screens * 16); | |
2470 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2471 | ||
2472 | this._sock.rQskipBytes(1); // number-of-screens | |
2473 | this._sock.rQskipBytes(3); // padding | |
2474 | ||
2475 | for (var i = 0; i < number_of_screens; i += 1) { | |
2476 | // Save the id and flags of the first screen | |
2477 | if (i === 0) { | |
2478 | this._screen_id = this._sock.rQshiftBytes(4); // id | |
2479 | this._sock.rQskipBytes(2); // x-position | |
2480 | this._sock.rQskipBytes(2); // y-position | |
2481 | this._sock.rQskipBytes(2); // width | |
2482 | this._sock.rQskipBytes(2); // height | |
2483 | this._screen_flags = this._sock.rQshiftBytes(4); // flags | |
2484 | } else { | |
2485 | this._sock.rQskipBytes(16); | |
798340b9 | 2486 | } |
6d6f0db0 | 2487 | } |
b0ec6509 | 2488 | |
6d6f0db0 SR |
2489 | /* |
2490 | * The x-position indicates the reason for the change: | |
2491 | * | |
2492 | * 0 - server resized on its own | |
2493 | * 1 - this client requested the resize | |
2494 | * 2 - another client requested the resize | |
2495 | */ | |
b0ec6509 | 2496 | |
6d6f0db0 SR |
2497 | // We need to handle errors when we requested the resize. |
2498 | if (this._FBU.x === 1 && this._FBU.y !== 0) { | |
2499 | var msg = ""; | |
2500 | // The y-position indicates the status code from the server | |
2501 | switch (this._FBU.y) { | |
2502 | case 1: | |
2503 | msg = "Resize is administratively prohibited"; | |
2504 | break; | |
2505 | case 2: | |
2506 | msg = "Out of resources"; | |
2507 | break; | |
2508 | case 3: | |
2509 | msg = "Invalid screen layout"; | |
2510 | break; | |
2511 | default: | |
2512 | msg = "Unknown reason"; | |
2513 | break; | |
2514 | } | |
5b20d338 SM |
2515 | Log.Warn("Server did not accept the resize request: " |
2516 | + msg); | |
910fd3af PO |
2517 | } else { |
2518 | this._resize(this._FBU.width, this._FBU.height); | |
6d6f0db0 | 2519 | } |
b1dee947 | 2520 | |
91d5c625 PO |
2521 | this._FBU.bytes = 0; |
2522 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2523 | return true; |
2524 | }, | |
b1dee947 | 2525 | |
6d6f0db0 | 2526 | DesktopSize: function () { |
91d5c625 PO |
2527 | this._resize(this._FBU.width, this._FBU.height); |
2528 | this._FBU.bytes = 0; | |
2529 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2530 | return true; |
2531 | }, | |
8db09746 | 2532 | |
6d6f0db0 SR |
2533 | Cursor: function () { |
2534 | Log.Debug(">> set_cursor"); | |
2535 | var x = this._FBU.x; // hotspot-x | |
2536 | var y = this._FBU.y; // hotspot-y | |
2537 | var w = this._FBU.width; | |
2538 | var h = this._FBU.height; | |
8db09746 | 2539 | |
26586b9d | 2540 | var pixelslength = w * h * 4; |
6d6f0db0 | 2541 | var masklength = Math.floor((w + 7) / 8) * h; |
a7a89626 | 2542 | |
6d6f0db0 SR |
2543 | this._FBU.bytes = pixelslength + masklength; |
2544 | if (this._sock.rQwait("cursor encoding", this._FBU.bytes)) { return false; } | |
b1dee947 | 2545 | |
6d6f0db0 SR |
2546 | this._display.changeCursor(this._sock.rQshiftBytes(pixelslength), |
2547 | this._sock.rQshiftBytes(masklength), | |
2548 | x, y, w, h); | |
b1dee947 | 2549 | |
6d6f0db0 SR |
2550 | this._FBU.bytes = 0; |
2551 | this._FBU.rects--; | |
8f06673a | 2552 | |
6d6f0db0 SR |
2553 | Log.Debug("<< set_cursor"); |
2554 | return true; | |
2555 | }, | |
25e4928f | 2556 | |
6d6f0db0 SR |
2557 | QEMUExtendedKeyEvent: function () { |
2558 | this._FBU.rects--; | |
25e4928f | 2559 | |
2bf4cf5a PO |
2560 | // Old Safari doesn't support creating keyboard events |
2561 | try { | |
2562 | var keyboardEvent = document.createEvent("keyboardEvent"); | |
2563 | if (keyboardEvent.code !== undefined) { | |
2564 | this._qemuExtKeyEventSupported = true; | |
2565 | } | |
2566 | } catch (err) { | |
058be785 | 2567 | } |
6d6f0db0 | 2568 | }, |
6d6f0db0 | 2569 | }; |