]>
Commit | Line | Data |
---|---|---|
a7a89626 JM |
1 | /* |
2 | * noVNC: HTML5 VNC client | |
d58f8b51 | 3 | * Copyright (C) 2012 Joel Martin |
7a16304e | 4 | * Copyright (C) 2016 Samuel Mannehed for Cendio AB |
1d728ace | 5 | * Licensed under MPL 2.0 (see LICENSE.txt) |
a7a89626 JM |
6 | * |
7 | * See README.md for usage and integration instructions. | |
d38db74a MT |
8 | * |
9 | * TIGHT decoder portion: | |
10 | * (c) 2012 Michael Tinglof, Joe Balaz, Les Piech (Mercuri.ca) | |
a7a89626 JM |
11 | */ |
12 | ||
6d6f0db0 SR |
13 | import * as Log from './util/logging.js'; |
14 | import _ from './util/localization.js'; | |
15 | import { decodeUTF8 } from './util/strings.js'; | |
16 | import { set_defaults, make_properties } from './util/properties.js'; | |
3ae0bb09 | 17 | import Display from "./display.js"; |
c1e2785f SM |
18 | import Keyboard from "./input/keyboard.js"; |
19 | import Mouse from "./input/mouse.js"; | |
3ae0bb09 SR |
20 | import Websock from "./websock.js"; |
21 | import Base64 from "./base64.js"; | |
22 | import DES from "./des.js"; | |
23 | import KeyTable from "./input/keysym.js"; | |
24 | import XtScancode from "./input/xtscancodes.js"; | |
fba220c6 | 25 | import Inflator from "./inflator.js"; |
f8ec2df2 | 26 | import { encodings, encodingName } from "./encodings.js"; |
3ae0bb09 | 27 | |
b1dee947 | 28 | /*jslint white: false, browser: true */ |
ae510306 | 29 | /*global window, Util, Display, Keyboard, Mouse, Websock, Websock_native, Base64, DES, KeyTable, Inflator, XtScancode */ |
a7a89626 | 30 | |
3ae0bb09 | 31 | export default function RFB(defaults) { |
b1dee947 | 32 | "use strict"; |
ae510306 SR |
33 | if (!defaults) { |
34 | defaults = {}; | |
35 | } | |
36 | ||
37 | this._rfb_host = ''; | |
38 | this._rfb_port = 5900; | |
430f00d6 | 39 | this._rfb_credentials = {}; |
ae510306 SR |
40 | this._rfb_path = ''; |
41 | ||
3bb12056 | 42 | this._rfb_connection_state = ''; |
c00ee156 | 43 | this._rfb_init_state = ''; |
ae510306 SR |
44 | this._rfb_version = 0; |
45 | this._rfb_max_version = 3.8; | |
46 | this._rfb_auth_scheme = ''; | |
3bb12056 | 47 | this._rfb_disconnect_reason = ""; |
ae510306 SR |
48 | |
49 | this._rfb_tightvnc = false; | |
50 | this._rfb_xvp_ver = 0; | |
51 | ||
832be262 | 52 | this._capabilities = { power: false, resize: false }; |
cd523e8f | 53 | |
ae510306 | 54 | this._encHandlers = {}; |
ae510306 SR |
55 | this._encStats = {}; |
56 | ||
57 | this._sock = null; // Websock object | |
58 | this._display = null; // Display object | |
d9ca5e5b | 59 | this._flushing = false; // Display flushing state |
ae510306 SR |
60 | this._keyboard = null; // Keyboard input handler object |
61 | this._mouse = null; // Mouse input handler object | |
62 | this._disconnTimer = null; // disconnection timer | |
ae510306 SR |
63 | |
64 | this._supportsFence = false; | |
65 | ||
66 | this._supportsContinuousUpdates = false; | |
67 | this._enabledContinuousUpdates = false; | |
68 | ||
69 | // Frame buffer update state | |
70 | this._FBU = { | |
71 | rects: 0, | |
72 | subrects: 0, // RRE | |
73 | lines: 0, // RAW | |
74 | tiles: 0, // HEXTILE | |
75 | bytes: 0, | |
76 | x: 0, | |
77 | y: 0, | |
78 | width: 0, | |
79 | height: 0, | |
80 | encoding: 0, | |
81 | subencoding: -1, | |
82 | background: null, | |
83 | zlib: [] // TIGHT zlib streams | |
84 | }; | |
5210330a | 85 | |
ae510306 SR |
86 | this._fb_width = 0; |
87 | this._fb_height = 0; | |
88 | this._fb_name = ""; | |
b1dee947 | 89 | |
ae510306 SR |
90 | this._destBuff = null; |
91 | this._paletteBuff = new Uint8Array(1024); // 256 * 4 (max palette size * max bytes-per-pixel) | |
b1dee947 | 92 | |
ae510306 | 93 | this._rre_chunk_sz = 100; |
b1dee947 | 94 | |
ae510306 SR |
95 | this._timing = { |
96 | last_fbu: 0, | |
97 | fbu_total: 0, | |
98 | fbu_total_cnt: 0, | |
99 | full_fbu_total: 0, | |
100 | full_fbu_cnt: 0, | |
b1dee947 | 101 | |
ae510306 SR |
102 | fbu_rt_start: 0, |
103 | fbu_rt_total: 0, | |
104 | fbu_rt_cnt: 0, | |
105 | pixels: 0 | |
106 | }; | |
107 | ||
108 | this._supportsSetDesktopSize = false; | |
109 | this._screen_id = 0; | |
110 | this._screen_flags = 0; | |
111 | ||
112 | // Mouse state | |
113 | this._mouse_buttonMask = 0; | |
114 | this._mouse_arr = []; | |
115 | this._viewportDragging = false; | |
116 | this._viewportDragPos = {}; | |
117 | this._viewportHasMoved = false; | |
118 | ||
119 | // QEMU Extended Key Event support - default to false | |
120 | this._qemuExtKeyEventSupported = false; | |
121 | ||
122 | // set the default value on user-facing properties | |
6d6f0db0 | 123 | set_defaults(this, defaults, { |
ae510306 | 124 | 'target': 'null', // VNC display rendering Canvas object |
ae510306 | 125 | 'encrypt': false, // Use TLS/SSL/wss encryption |
ae510306 SR |
126 | 'local_cursor': false, // Request locally rendered cursor |
127 | 'shared': true, // Request shared mode | |
128 | 'view_only': false, // Disable client mouse/keyboard | |
ae510306 SR |
129 | 'disconnectTimeout': 3, // Time (s) to wait for disconnection |
130 | 'wsProtocols': ['binary'], // Protocols to use in the WebSocket connection | |
131 | 'repeaterID': '', // [UltraVNC] RepeaterID to connect to | |
132 | 'viewportDrag': false, // Move the viewport on mouse drags | |
133 | ||
134 | // Callback functions | |
3bb12056 | 135 | 'onUpdateState': function () { }, // onUpdateState(rfb, state, oldstate): connection state change |
a7127fee | 136 | 'onNotification': function () { }, // onNotification(rfb, msg, level, options): notification for UI |
3bb12056 | 137 | 'onDisconnected': function () { }, // onDisconnected(rfb, reason): disconnection finished |
430f00d6 | 138 | 'onCredentialsRequired': function () { }, // onCredentialsRequired(rfb, types): VNC credentials are required |
ae510306 SR |
139 | 'onClipboard': function () { }, // onClipboard(rfb, text): RFB clipboard contents received |
140 | 'onBell': function () { }, // onBell(rfb): RFB Bell message received | |
c7c6cb19 PO |
141 | 'onFBUReceive': function () { }, // onFBUReceive(rfb, rect): RFB FBU rect received but not yet processed |
142 | 'onFBUComplete': function () { }, // onFBUComplete(rfb): RFB FBU received and processed | |
ae510306 SR |
143 | 'onFBResize': function () { }, // onFBResize(rfb, width, height): frame buffer resized |
144 | 'onDesktopName': function () { }, // onDesktopName(rfb, name): desktop name received | |
cd523e8f | 145 | 'onCapabilities': function () { } // onCapabilities(rfb, caps): the supported capabilities has changed |
ae510306 SR |
146 | }); |
147 | ||
148 | // main setup | |
6d6f0db0 | 149 | Log.Debug(">> RFB.constructor"); |
ae510306 | 150 | |
45808617 PO |
151 | // Target canvas must be able to have focus |
152 | if (!this._target.hasAttribute('tabindex')) { | |
153 | this._target.tabIndex = -1; | |
154 | } | |
155 | ||
ae510306 | 156 | // populate encHandlers with bound versions |
cd230363 SM |
157 | this._encHandlers[encodings.encodingRaw] = RFB.encodingHandlers.RAW.bind(this); |
158 | this._encHandlers[encodings.encodingCopyRect] = RFB.encodingHandlers.COPYRECT.bind(this); | |
159 | this._encHandlers[encodings.encodingRRE] = RFB.encodingHandlers.RRE.bind(this); | |
160 | this._encHandlers[encodings.encodingHextile] = RFB.encodingHandlers.HEXTILE.bind(this); | |
161 | this._encHandlers[encodings.encodingTight] = RFB.encodingHandlers.TIGHT.bind(this); | |
162 | ||
163 | this._encHandlers[encodings.pseudoEncodingDesktopSize] = RFB.encodingHandlers.DesktopSize.bind(this); | |
164 | this._encHandlers[encodings.pseudoEncodingLastRect] = RFB.encodingHandlers.last_rect.bind(this); | |
165 | this._encHandlers[encodings.pseudoEncodingCursor] = RFB.encodingHandlers.Cursor.bind(this); | |
166 | this._encHandlers[encodings.pseudoEncodingQEMUExtendedKeyEvent] = RFB.encodingHandlers.QEMUExtendedKeyEvent.bind(this); | |
167 | this._encHandlers[encodings.pseudoEncodingExtendedDesktopSize] = RFB.encodingHandlers.ExtendedDesktopSize.bind(this); | |
ae510306 SR |
168 | |
169 | // NB: nothing that needs explicit teardown should be done | |
170 | // before this point, since this can throw an exception | |
171 | try { | |
d9ca5e5b PO |
172 | this._display = new Display({target: this._target, |
173 | onFlush: this._onFlush.bind(this)}); | |
ae510306 | 174 | } catch (exc) { |
6d6f0db0 | 175 | Log.Error("Display exception: " + exc); |
ae510306 SR |
176 | throw exc; |
177 | } | |
178 | ||
2afda544 | 179 | this._keyboard = new Keyboard({target: this._target, |
d0703d1b | 180 | onKeyEvent: this._handleKeyEvent.bind(this)}); |
ae510306 SR |
181 | |
182 | this._mouse = new Mouse({target: this._target, | |
183 | onMouseButton: this._handleMouseButton.bind(this), | |
9e6f71cb | 184 | onMouseMove: this._handleMouseMove.bind(this)}); |
ae510306 SR |
185 | |
186 | this._sock = new Websock(); | |
187 | this._sock.on('message', this._handle_message.bind(this)); | |
188 | this._sock.on('open', function () { | |
c2a4d3ef | 189 | if ((this._rfb_connection_state === 'connecting') && |
c00ee156 SM |
190 | (this._rfb_init_state === '')) { |
191 | this._rfb_init_state = 'ProtocolVersion'; | |
6d6f0db0 | 192 | Log.Debug("Starting VNC handshake"); |
ae510306 | 193 | } else { |
67cd2072 | 194 | this._fail("Unexpected server connection"); |
ae510306 SR |
195 | } |
196 | }.bind(this)); | |
197 | this._sock.on('close', function (e) { | |
6d6f0db0 | 198 | Log.Warn("WebSocket on-close event"); |
ae510306 SR |
199 | var msg = ""; |
200 | if (e.code) { | |
201 | msg = " (code: " + e.code; | |
202 | if (e.reason) { | |
203 | msg += ", reason: " + e.reason; | |
b1dee947 | 204 | } |
ae510306 SR |
205 | msg += ")"; |
206 | } | |
c00ee156 | 207 | switch (this._rfb_connection_state) { |
c2a4d3ef | 208 | case 'disconnecting': |
3bb12056 | 209 | this._updateConnectionState('disconnected'); |
c00ee156 | 210 | break; |
c2a4d3ef | 211 | case 'connecting': |
67cd2072 | 212 | this._fail('Failed to connect to server', msg); |
c00ee156 | 213 | break; |
b45905ab SM |
214 | case 'connected': |
215 | // Handle disconnects that were initiated server-side | |
216 | this._updateConnectionState('disconnecting'); | |
217 | this._updateConnectionState('disconnected'); | |
218 | break; | |
c00ee156 | 219 | case 'disconnected': |
67cd2072 SM |
220 | this._fail("Unexpected server disconnect", |
221 | "Already disconnected: " + msg); | |
c00ee156 SM |
222 | break; |
223 | default: | |
67cd2072 SM |
224 | this._fail("Unexpected server disconnect", |
225 | "Not in any state yet: " + msg); | |
c00ee156 | 226 | break; |
a679a97d | 227 | } |
ae510306 SR |
228 | this._sock.off('close'); |
229 | }.bind(this)); | |
230 | this._sock.on('error', function (e) { | |
6d6f0db0 | 231 | Log.Warn("WebSocket on-error event"); |
ae510306 | 232 | }); |
8db09746 | 233 | |
ae510306 | 234 | this._init_vars(); |
6c145147 | 235 | this._cleanup(); |
ae510306 SR |
236 | |
237 | var rmode = this._display.get_render_mode(); | |
6d6f0db0 | 238 | Log.Info("Using native WebSockets, render mode: " + rmode); |
ae510306 | 239 | |
6d6f0db0 | 240 | Log.Debug("<< RFB.constructor"); |
ae510306 | 241 | }; |
a7a89626 | 242 | |
6d6f0db0 SR |
243 | RFB.prototype = { |
244 | // Public methods | |
430f00d6 | 245 | connect: function (host, port, creds, path) { |
6d6f0db0 SR |
246 | this._rfb_host = host; |
247 | this._rfb_port = port; | |
430f00d6 | 248 | this._rfb_credentials = (creds !== undefined) ? creds : {}; |
6d6f0db0 SR |
249 | this._rfb_path = (path !== undefined) ? path : ""; |
250 | ||
8290d3f2 | 251 | if (!this._rfb_host) { |
6d6f0db0 | 252 | return this._fail( |
8290d3f2 | 253 | _("Must set host")); |
6d6f0db0 | 254 | } |
a7a89626 | 255 | |
6d6f0db0 SR |
256 | this._rfb_init_state = ''; |
257 | this._updateConnectionState('connecting'); | |
258 | return true; | |
259 | }, | |
260 | ||
261 | disconnect: function () { | |
262 | this._updateConnectionState('disconnecting'); | |
263 | this._sock.off('error'); | |
264 | this._sock.off('message'); | |
265 | this._sock.off('open'); | |
266 | }, | |
267 | ||
430f00d6 PO |
268 | sendCredentials: function (creds) { |
269 | this._rfb_credentials = creds; | |
6d6f0db0 SR |
270 | setTimeout(this._init_msg.bind(this), 0); |
271 | }, | |
272 | ||
273 | sendCtrlAltDel: function () { | |
274 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } | |
275 | Log.Info("Sending Ctrl-Alt-Del"); | |
276 | ||
94f5cf05 PO |
277 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", true); |
278 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", true); | |
279 | this.sendKey(KeyTable.XK_Delete, "Delete", true); | |
280 | this.sendKey(KeyTable.XK_Delete, "Delete", false); | |
281 | this.sendKey(KeyTable.XK_Alt_L, "AltLeft", false); | |
282 | this.sendKey(KeyTable.XK_Control_L, "ControlLeft", false); | |
283 | ||
6d6f0db0 SR |
284 | return true; |
285 | }, | |
286 | ||
cd523e8f PO |
287 | machineShutdown: function () { |
288 | this._xvpOp(1, 2); | |
6d6f0db0 SR |
289 | }, |
290 | ||
cd523e8f PO |
291 | machineReboot: function () { |
292 | this._xvpOp(1, 3); | |
6d6f0db0 SR |
293 | }, |
294 | ||
cd523e8f PO |
295 | machineReset: function () { |
296 | this._xvpOp(1, 4); | |
6d6f0db0 SR |
297 | }, |
298 | ||
299 | // Send a key press. If 'down' is not specified then send a down key | |
300 | // followed by an up key. | |
94f5cf05 | 301 | sendKey: function (keysym, code, down) { |
6d6f0db0 | 302 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return false; } |
94f5cf05 PO |
303 | |
304 | if (down === undefined) { | |
305 | this.sendKey(keysym, code, true); | |
306 | this.sendKey(keysym, code, false); | |
307 | return true; | |
308 | } | |
309 | ||
be70fe0a | 310 | var scancode = XtScancode[code]; |
94f5cf05 | 311 | |
be70fe0a | 312 | if (this._qemuExtKeyEventSupported && scancode) { |
459ed008 PO |
313 | // 0 is NoSymbol |
314 | keysym = keysym || 0; | |
315 | ||
94f5cf05 PO |
316 | Log.Info("Sending key (" + (down ? "down" : "up") + "): keysym " + keysym + ", scancode " + scancode); |
317 | ||
318 | RFB.messages.QEMUExtendedKeyEvent(this._sock, keysym, down, scancode); | |
319 | } else { | |
459ed008 PO |
320 | if (!keysym) { |
321 | return false; | |
322 | } | |
6d6f0db0 SR |
323 | Log.Info("Sending keysym (" + (down ? "down" : "up") + "): " + keysym); |
324 | RFB.messages.keyEvent(this._sock, keysym, down ? 1 : 0); | |
6d6f0db0 | 325 | } |
94f5cf05 | 326 | |
6d6f0db0 SR |
327 | return true; |
328 | }, | |
329 | ||
330 | clipboardPasteFrom: function (text) { | |
331 | if (this._rfb_connection_state !== 'connected' || this._view_only) { return; } | |
332 | RFB.messages.clientCutText(this._sock, text); | |
333 | }, | |
334 | ||
b9854a5c PO |
335 | autoscale: function (width, height, downscaleOnly) { |
336 | if (this._rfb_connection_state !== 'connected') { return; } | |
337 | this._display.autoscale(width, height, downscaleOnly); | |
338 | }, | |
339 | ||
340 | viewportChangeSize: function(width, height) { | |
341 | if (this._rfb_connection_state !== 'connected') { return; } | |
342 | this._display.viewportChangeSize(width, height); | |
343 | }, | |
344 | ||
345 | clippingDisplay: function () { | |
346 | if (this._rfb_connection_state !== 'connected') { return false; } | |
347 | return this._display.clippingDisplay(); | |
348 | }, | |
349 | ||
6d6f0db0 SR |
350 | // Requests a change of remote desktop size. This message is an extension |
351 | // and may only be sent if we have received an ExtendedDesktopSize message | |
352 | requestDesktopSize: function (width, height) { | |
353 | if (this._rfb_connection_state !== 'connected' || | |
354 | this._view_only) { | |
355 | return false; | |
356 | } | |
e3efeb32 | 357 | |
6d6f0db0 SR |
358 | if (this._supportsSetDesktopSize) { |
359 | RFB.messages.setDesktopSize(this._sock, width, height, | |
360 | this._screen_id, this._screen_flags); | |
361 | this._sock.flush(); | |
4e0c36dd | 362 | return true; |
6d6f0db0 SR |
363 | } else { |
364 | return false; | |
365 | } | |
366 | }, | |
b1dee947 | 367 | |
b1dee947 | 368 | |
6d6f0db0 | 369 | // Private methods |
b0ec6509 | 370 | |
6d6f0db0 SR |
371 | _connect: function () { |
372 | Log.Debug(">> RFB.connect"); | |
373 | this._init_vars(); | |
b0ec6509 | 374 | |
6d6f0db0 SR |
375 | var uri; |
376 | if (typeof UsingSocketIO !== 'undefined') { | |
377 | uri = 'http'; | |
378 | } else { | |
379 | uri = this._encrypt ? 'wss' : 'ws'; | |
380 | } | |
b1dee947 | 381 | |
8290d3f2 PO |
382 | uri += '://' + this._rfb_host; |
383 | if(this._rfb_port) { | |
384 | uri += ':' + this._rfb_port; | |
385 | } | |
386 | uri += '/' + this._rfb_path; | |
a7a89626 | 387 | |
6d6f0db0 | 388 | Log.Info("connecting to " + uri); |
b1dee947 | 389 | |
6d6f0db0 SR |
390 | try { |
391 | // WebSocket.onopen transitions to the RFB init states | |
392 | this._sock.open(uri, this._wsProtocols); | |
393 | } catch (e) { | |
394 | if (e.name === 'SyntaxError') { | |
395 | this._fail("Invalid host or port value given", e); | |
b1dee947 | 396 | } else { |
6d6f0db0 | 397 | this._fail("Error while connecting", e); |
159ad55d | 398 | } |
6d6f0db0 | 399 | } |
e3efeb32 | 400 | |
2afda544 PO |
401 | // Always grab focus on some kind of click event |
402 | this._target.addEventListener("mousedown", this._focusCanvas); | |
403 | this._target.addEventListener("touchstart", this._focusCanvas); | |
404 | ||
6d6f0db0 SR |
405 | Log.Debug("<< RFB.connect"); |
406 | }, | |
407 | ||
408 | _disconnect: function () { | |
409 | Log.Debug(">> RFB.disconnect"); | |
2afda544 PO |
410 | this._target.removeEventListener("mousedown", this._focusCanvas); |
411 | this._target.removeEventListener("touchstart", this._focusCanvas); | |
6d6f0db0 SR |
412 | this._cleanup(); |
413 | this._sock.close(); | |
414 | this._print_stats(); | |
415 | Log.Debug("<< RFB.disconnect"); | |
416 | }, | |
417 | ||
418 | _init_vars: function () { | |
419 | // reset state | |
420 | this._FBU.rects = 0; | |
421 | this._FBU.subrects = 0; // RRE and HEXTILE | |
422 | this._FBU.lines = 0; // RAW | |
423 | this._FBU.tiles = 0; // HEXTILE | |
424 | this._FBU.zlibs = []; // TIGHT zlib encoders | |
425 | this._mouse_buttonMask = 0; | |
426 | this._mouse_arr = []; | |
427 | this._rfb_tightvnc = false; | |
428 | ||
429 | // Clear the per connection encoding stats | |
c3386227 PO |
430 | var stats = this._encStats; |
431 | Object.keys(stats).forEach(function (key) { | |
432 | stats[key][0] = 0; | |
433 | }); | |
a7a89626 | 434 | |
c3386227 | 435 | var i; |
6d6f0db0 SR |
436 | for (i = 0; i < 4; i++) { |
437 | this._FBU.zlibs[i] = new Inflator(); | |
438 | } | |
439 | }, | |
a7a89626 | 440 | |
6d6f0db0 | 441 | _print_stats: function () { |
c3386227 PO |
442 | var stats = this._encStats; |
443 | ||
6d6f0db0 | 444 | Log.Info("Encoding stats for this connection:"); |
c3386227 PO |
445 | Object.keys(stats).forEach(function (key) { |
446 | var s = stats[key]; | |
6d6f0db0 | 447 | if (s[0] + s[1] > 0) { |
c3386227 | 448 | Log.Info(" " + encodingName(key) + ": " + s[0] + " rects"); |
b1dee947 | 449 | } |
c3386227 | 450 | }); |
a7a89626 | 451 | |
6d6f0db0 | 452 | Log.Info("Encoding stats since page load:"); |
c3386227 PO |
453 | Object.keys(stats).forEach(function (key) { |
454 | var s = stats[key]; | |
455 | Log.Info(" " + encodingName(key) + ": " + s[1] + " rects"); | |
456 | }); | |
6d6f0db0 SR |
457 | }, |
458 | ||
459 | _cleanup: function () { | |
460 | if (!this._view_only) { this._keyboard.ungrab(); } | |
461 | if (!this._view_only) { this._mouse.ungrab(); } | |
462 | this._display.defaultCursor(); | |
463 | if (Log.get_logging() !== 'debug') { | |
464 | // Show noVNC logo on load and when disconnected, unless in | |
465 | // debug mode | |
466 | this._display.clear(); | |
467 | } | |
468 | }, | |
469 | ||
2afda544 PO |
470 | // Event handler for canvas so this points to the canvas element |
471 | _focusCanvas: function(event) { | |
472 | // Respect earlier handlers' request to not do side-effects | |
473 | if (!event.defaultPrevented) | |
474 | this.focus(); | |
475 | }, | |
476 | ||
6d6f0db0 SR |
477 | /* |
478 | * Connection states: | |
479 | * connecting | |
480 | * connected | |
481 | * disconnecting | |
482 | * disconnected - permanent state | |
483 | */ | |
484 | _updateConnectionState: function (state) { | |
485 | var oldstate = this._rfb_connection_state; | |
486 | ||
487 | if (state === oldstate) { | |
488 | Log.Debug("Already in state '" + state + "', ignoring"); | |
489 | return; | |
490 | } | |
491 | ||
492 | // The 'disconnected' state is permanent for each RFB object | |
493 | if (oldstate === 'disconnected') { | |
494 | Log.Error("Tried changing state of a disconnected RFB object"); | |
495 | return; | |
496 | } | |
497 | ||
498 | // Ensure proper transitions before doing anything | |
499 | switch (state) { | |
500 | case 'connected': | |
501 | if (oldstate !== 'connecting') { | |
502 | Log.Error("Bad transition to connected state, " + | |
503 | "previous connection state: " + oldstate); | |
504 | return; | |
b1dee947 | 505 | } |
6d6f0db0 | 506 | break; |
a7a89626 | 507 | |
6d6f0db0 SR |
508 | case 'disconnected': |
509 | if (oldstate !== 'disconnecting') { | |
510 | Log.Error("Bad transition to disconnected state, " + | |
511 | "previous connection state: " + oldstate); | |
512 | return; | |
513 | } | |
514 | break; | |
a7a89626 | 515 | |
6d6f0db0 SR |
516 | case 'connecting': |
517 | if (oldstate !== '') { | |
518 | Log.Error("Bad transition to connecting state, " + | |
519 | "previous connection state: " + oldstate); | |
520 | return; | |
521 | } | |
522 | break; | |
b1dee947 | 523 | |
6d6f0db0 SR |
524 | case 'disconnecting': |
525 | if (oldstate !== 'connected' && oldstate !== 'connecting') { | |
526 | Log.Error("Bad transition to disconnecting state, " + | |
527 | "previous connection state: " + oldstate); | |
528 | return; | |
529 | } | |
530 | break; | |
a679a97d | 531 | |
6d6f0db0 SR |
532 | default: |
533 | Log.Error("Unknown connection state: " + state); | |
3bb12056 | 534 | return; |
6d6f0db0 | 535 | } |
b1dee947 | 536 | |
6d6f0db0 | 537 | // State change actions |
3bb12056 | 538 | |
6d6f0db0 SR |
539 | this._rfb_connection_state = state; |
540 | this._onUpdateState(this, state, oldstate); | |
b2e961d4 | 541 | |
6d6f0db0 SR |
542 | var smsg = "New state '" + state + "', was '" + oldstate + "'."; |
543 | Log.Debug(smsg); | |
b2e961d4 | 544 | |
6d6f0db0 SR |
545 | if (this._disconnTimer && state !== 'disconnecting') { |
546 | Log.Debug("Clearing disconnect timer"); | |
547 | clearTimeout(this._disconnTimer); | |
548 | this._disconnTimer = null; | |
3bb12056 | 549 | |
6d6f0db0 SR |
550 | // make sure we don't get a double event |
551 | this._sock.off('close'); | |
552 | } | |
b2e961d4 | 553 | |
6d6f0db0 SR |
554 | switch (state) { |
555 | case 'disconnected': | |
556 | // Call onDisconnected callback after onUpdateState since | |
557 | // we don't know if the UI only displays the latest message | |
558 | if (this._rfb_disconnect_reason !== "") { | |
559 | this._onDisconnected(this, this._rfb_disconnect_reason); | |
560 | } else { | |
561 | // No reason means clean disconnect | |
562 | this._onDisconnected(this); | |
563 | } | |
564 | break; | |
b2e961d4 | 565 | |
6d6f0db0 SR |
566 | case 'connecting': |
567 | this._connect(); | |
568 | break; | |
b2e961d4 | 569 | |
6d6f0db0 SR |
570 | case 'disconnecting': |
571 | this._disconnect(); | |
b2e961d4 | 572 | |
6d6f0db0 SR |
573 | this._disconnTimer = setTimeout(function () { |
574 | this._rfb_disconnect_reason = _("Disconnect timeout"); | |
575 | this._updateConnectionState('disconnected'); | |
576 | }.bind(this), this._disconnectTimeout * 1000); | |
577 | break; | |
578 | } | |
579 | }, | |
580 | ||
581 | /* Print errors and disconnect | |
582 | * | |
583 | * The optional parameter 'details' is used for information that | |
584 | * should be logged but not sent to the user interface. | |
585 | */ | |
586 | _fail: function (msg, details) { | |
587 | var fullmsg = msg; | |
588 | if (typeof details !== 'undefined') { | |
589 | fullmsg = msg + " (" + details + ")"; | |
590 | } | |
591 | switch (this._rfb_connection_state) { | |
592 | case 'disconnecting': | |
593 | Log.Error("Failed when disconnecting: " + fullmsg); | |
594 | break; | |
595 | case 'connected': | |
596 | Log.Error("Failed while connected: " + fullmsg); | |
597 | break; | |
598 | case 'connecting': | |
599 | Log.Error("Failed when connecting: " + fullmsg); | |
600 | break; | |
601 | default: | |
602 | Log.Error("RFB failure: " + fullmsg); | |
603 | break; | |
604 | } | |
605 | this._rfb_disconnect_reason = msg; //This is sent to the UI | |
606 | ||
607 | // Transition to disconnected without waiting for socket to close | |
608 | this._updateConnectionState('disconnecting'); | |
609 | this._updateConnectionState('disconnected'); | |
610 | ||
611 | return false; | |
612 | }, | |
613 | ||
614 | /* | |
615 | * Send a notification to the UI. Valid levels are: | |
616 | * 'normal'|'warn'|'error' | |
617 | * | |
618 | * NOTE: Options could be added in the future. | |
619 | * NOTE: If this function is called multiple times, remember that the | |
620 | * interface could be only showing the latest notification. | |
621 | */ | |
622 | _notification: function(msg, level, options) { | |
623 | switch (level) { | |
624 | case 'normal': | |
625 | case 'warn': | |
626 | case 'error': | |
627 | Log.Debug("Notification[" + level + "]:" + msg); | |
628 | break; | |
629 | default: | |
630 | Log.Error("Invalid notification level: " + level); | |
631 | return; | |
632 | } | |
b2e961d4 | 633 | |
6d6f0db0 SR |
634 | if (options) { |
635 | this._onNotification(this, msg, level, options); | |
636 | } else { | |
637 | this._onNotification(this, msg, level); | |
638 | } | |
639 | }, | |
b1dee947 | 640 | |
832be262 PO |
641 | _setCapability: function (cap, val) { |
642 | this._capabilities[cap] = val; | |
643 | this._onCapabilities(this, this._capabilities); | |
644 | }, | |
645 | ||
6d6f0db0 SR |
646 | _handle_message: function () { |
647 | if (this._sock.rQlen() === 0) { | |
648 | Log.Warn("handle_message called on an empty receive queue"); | |
649 | return; | |
650 | } | |
b1dee947 | 651 | |
6d6f0db0 SR |
652 | switch (this._rfb_connection_state) { |
653 | case 'disconnected': | |
654 | Log.Error("Got data while disconnected"); | |
655 | break; | |
656 | case 'connected': | |
657 | while (true) { | |
658 | if (this._flushing) { | |
659 | break; | |
660 | } | |
661 | if (!this._normal_msg()) { | |
662 | break; | |
663 | } | |
664 | if (this._sock.rQlen() === 0) { | |
665 | break; | |
666 | } | |
667 | } | |
668 | break; | |
669 | default: | |
670 | this._init_msg(); | |
671 | break; | |
672 | } | |
673 | }, | |
3bb12056 | 674 | |
d0703d1b PO |
675 | _handleKeyEvent: function (keysym, code, down) { |
676 | this.sendKey(keysym, code, down); | |
6d6f0db0 | 677 | }, |
06a9ef0c | 678 | |
6d6f0db0 SR |
679 | _handleMouseButton: function (x, y, down, bmask) { |
680 | if (down) { | |
681 | this._mouse_buttonMask |= bmask; | |
682 | } else { | |
270bdbd7 | 683 | this._mouse_buttonMask &= ~bmask; |
6d6f0db0 | 684 | } |
a7127fee | 685 | |
6d6f0db0 SR |
686 | if (this._viewportDrag) { |
687 | if (down && !this._viewportDragging) { | |
688 | this._viewportDragging = true; | |
689 | this._viewportDragPos = {'x': x, 'y': y}; | |
a7127fee | 690 | |
6d6f0db0 | 691 | // Skip sending mouse events |
b1dee947 | 692 | return; |
6d6f0db0 SR |
693 | } else { |
694 | this._viewportDragging = false; | |
8db09746 | 695 | |
6d6f0db0 SR |
696 | // If the viewport didn't actually move, then treat as a mouse click event |
697 | // Send the button down event here, as the button up event is sent at the end of this function | |
698 | if (!this._viewportHasMoved && !this._view_only) { | |
699 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), bmask); | |
700 | } | |
701 | this._viewportHasMoved = false; | |
b1dee947 | 702 | } |
6d6f0db0 | 703 | } |
8db09746 | 704 | |
6d6f0db0 | 705 | if (this._view_only) { return; } // View only, skip mouse events |
8f06673a | 706 | |
6d6f0db0 SR |
707 | if (this._rfb_connection_state !== 'connected') { return; } |
708 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
709 | }, | |
8db09746 | 710 | |
6d6f0db0 SR |
711 | _handleMouseMove: function (x, y) { |
712 | if (this._viewportDragging) { | |
713 | var deltaX = this._viewportDragPos.x - x; | |
714 | var deltaY = this._viewportDragPos.y - y; | |
8db09746 | 715 | |
6d6f0db0 SR |
716 | // The goal is to trigger on a certain physical width, the |
717 | // devicePixelRatio brings us a bit closer but is not optimal. | |
718 | var dragThreshold = 10 * (window.devicePixelRatio || 1); | |
8db09746 | 719 | |
6d6f0db0 SR |
720 | if (this._viewportHasMoved || (Math.abs(deltaX) > dragThreshold || |
721 | Math.abs(deltaY) > dragThreshold)) { | |
722 | this._viewportHasMoved = true; | |
27e77d46 | 723 | |
6d6f0db0 SR |
724 | this._viewportDragPos = {'x': x, 'y': y}; |
725 | this._display.viewportChangePos(deltaX, deltaY); | |
b50f3406 | 726 | } |
8db09746 | 727 | |
6d6f0db0 SR |
728 | // Skip sending mouse events |
729 | return; | |
730 | } | |
b1dee947 | 731 | |
6d6f0db0 | 732 | if (this._view_only) { return; } // View only, skip mouse events |
b1dee947 | 733 | |
6d6f0db0 SR |
734 | if (this._rfb_connection_state !== 'connected') { return; } |
735 | RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask); | |
736 | }, | |
b1dee947 | 737 | |
6d6f0db0 | 738 | // Message Handlers |
27e77d46 | 739 | |
6d6f0db0 SR |
740 | _negotiate_protocol_version: function () { |
741 | if (this._sock.rQlen() < 12) { | |
742 | return this._fail("Error while negotiating with server", | |
743 | "Incomplete protocol version"); | |
744 | } | |
32df3fdb | 745 | |
6d6f0db0 SR |
746 | var sversion = this._sock.rQshiftStr(12).substr(4, 7); |
747 | Log.Info("Server ProtocolVersion: " + sversion); | |
748 | var is_repeater = 0; | |
749 | switch (sversion) { | |
750 | case "000.000": // UltraVNC repeater | |
751 | is_repeater = 1; | |
752 | break; | |
753 | case "003.003": | |
754 | case "003.006": // UltraVNC | |
755 | case "003.889": // Apple Remote Desktop | |
756 | this._rfb_version = 3.3; | |
757 | break; | |
758 | case "003.007": | |
759 | this._rfb_version = 3.7; | |
760 | break; | |
761 | case "003.008": | |
762 | case "004.000": // Intel AMT KVM | |
763 | case "004.001": // RealVNC 4.6 | |
764 | case "005.000": // RealVNC 5.3 | |
765 | this._rfb_version = 3.8; | |
766 | break; | |
767 | default: | |
768 | return this._fail("Unsupported server", | |
769 | "Invalid server version: " + sversion); | |
770 | } | |
8db09746 | 771 | |
6d6f0db0 SR |
772 | if (is_repeater) { |
773 | var repeaterID = this._repeaterID; | |
774 | while (repeaterID.length < 250) { | |
775 | repeaterID += "\0"; | |
b1dee947 | 776 | } |
6d6f0db0 SR |
777 | this._sock.send_string(repeaterID); |
778 | return true; | |
779 | } | |
b1dee947 | 780 | |
6d6f0db0 SR |
781 | if (this._rfb_version > this._rfb_max_version) { |
782 | this._rfb_version = this._rfb_max_version; | |
783 | } | |
b1dee947 | 784 | |
6d6f0db0 SR |
785 | var cversion = "00" + parseInt(this._rfb_version, 10) + |
786 | ".00" + ((this._rfb_version * 10) % 10); | |
787 | this._sock.send_string("RFB " + cversion + "\n"); | |
788 | Log.Debug('Sent ProtocolVersion: ' + cversion); | |
b1dee947 | 789 | |
6d6f0db0 SR |
790 | this._rfb_init_state = 'Security'; |
791 | }, | |
b1dee947 | 792 | |
6d6f0db0 SR |
793 | _negotiate_security: function () { |
794 | // Polyfill since IE and PhantomJS doesn't have | |
795 | // TypedArray.includes() | |
796 | function includes(item, array) { | |
797 | for (var i = 0; i < array.length; i++) { | |
798 | if (array[i] === item) { | |
799 | return true; | |
800 | } | |
b1dee947 | 801 | } |
6d6f0db0 SR |
802 | return false; |
803 | } | |
b1dee947 | 804 | |
6d6f0db0 SR |
805 | if (this._rfb_version >= 3.7) { |
806 | // Server sends supported list, client decides | |
807 | var num_types = this._sock.rQshift8(); | |
808 | if (this._sock.rQwait("security type", num_types, 1)) { return false; } | |
b1dee947 | 809 | |
6d6f0db0 SR |
810 | if (num_types === 0) { |
811 | var strlen = this._sock.rQshift32(); | |
812 | var reason = this._sock.rQshiftStr(strlen); | |
813 | return this._fail("Error while negotiating with server", | |
814 | "Security failure: " + reason); | |
815 | } | |
816 | ||
817 | var types = this._sock.rQshiftBytes(num_types); | |
818 | Log.Debug("Server security types: " + types); | |
819 | ||
820 | // Look for each auth in preferred order | |
821 | this._rfb_auth_scheme = 0; | |
822 | if (includes(1, types)) { | |
823 | this._rfb_auth_scheme = 1; // None | |
824 | } else if (includes(22, types)) { | |
825 | this._rfb_auth_scheme = 22; // XVP | |
826 | } else if (includes(16, types)) { | |
827 | this._rfb_auth_scheme = 16; // Tight | |
828 | } else if (includes(2, types)) { | |
829 | this._rfb_auth_scheme = 2; // VNC Auth | |
830 | } else { | |
831 | return this._fail("Unsupported server", | |
832 | "Unsupported security types: " + types); | |
8db09746 | 833 | } |
b1dee947 | 834 | |
6d6f0db0 SR |
835 | this._sock.send([this._rfb_auth_scheme]); |
836 | } else { | |
837 | // Server decides | |
838 | if (this._sock.rQwait("security scheme", 4)) { return false; } | |
839 | this._rfb_auth_scheme = this._sock.rQshift32(); | |
840 | } | |
b1dee947 | 841 | |
6d6f0db0 SR |
842 | this._rfb_init_state = 'Authentication'; |
843 | Log.Debug('Authenticating using scheme: ' + this._rfb_auth_scheme); | |
b1dee947 | 844 | |
6d6f0db0 SR |
845 | return this._init_msg(); // jump to authentication |
846 | }, | |
b1dee947 | 847 | |
6d6f0db0 SR |
848 | // authentication |
849 | _negotiate_xvp_auth: function () { | |
430f00d6 PO |
850 | if (!this._rfb_credentials.username || |
851 | !this._rfb_credentials.password || | |
852 | !this._rfb_credentials.target) { | |
853 | this._onCredentialsRequired(this, ["username", "password", "target"]); | |
6d6f0db0 SR |
854 | return false; |
855 | } | |
0ee5ca6e | 856 | |
430f00d6 PO |
857 | var xvp_auth_str = String.fromCharCode(this._rfb_credentials.username.length) + |
858 | String.fromCharCode(this._rfb_credentials.target.length) + | |
859 | this._rfb_credentials.username + | |
860 | this._rfb_credentials.target; | |
6d6f0db0 | 861 | this._sock.send_string(xvp_auth_str); |
6d6f0db0 SR |
862 | this._rfb_auth_scheme = 2; |
863 | return this._negotiate_authentication(); | |
864 | }, | |
865 | ||
866 | _negotiate_std_vnc_auth: function () { | |
abfe5b7a SM |
867 | if (this._sock.rQwait("auth challenge", 16)) { return false; } |
868 | ||
430f00d6 PO |
869 | if (!this._rfb_credentials.password) { |
870 | this._onCredentialsRequired(this, ["password"]); | |
6d6f0db0 SR |
871 | return false; |
872 | } | |
b1dee947 | 873 | |
6d6f0db0 SR |
874 | // TODO(directxman12): make genDES not require an Array |
875 | var challenge = Array.prototype.slice.call(this._sock.rQshiftBytes(16)); | |
430f00d6 | 876 | var response = RFB.genDES(this._rfb_credentials.password, challenge); |
6d6f0db0 SR |
877 | this._sock.send(response); |
878 | this._rfb_init_state = "SecurityResult"; | |
879 | return true; | |
880 | }, | |
881 | ||
882 | _negotiate_tight_tunnels: function (numTunnels) { | |
883 | var clientSupportedTunnelTypes = { | |
884 | 0: { vendor: 'TGHT', signature: 'NOTUNNEL' } | |
885 | }; | |
886 | var serverSupportedTunnelTypes = {}; | |
887 | // receive tunnel capabilities | |
888 | for (var i = 0; i < numTunnels; i++) { | |
889 | var cap_code = this._sock.rQshift32(); | |
890 | var cap_vendor = this._sock.rQshiftStr(4); | |
891 | var cap_signature = this._sock.rQshiftStr(8); | |
892 | serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature }; | |
893 | } | |
894 | ||
895 | // choose the notunnel type | |
896 | if (serverSupportedTunnelTypes[0]) { | |
897 | if (serverSupportedTunnelTypes[0].vendor != clientSupportedTunnelTypes[0].vendor || | |
898 | serverSupportedTunnelTypes[0].signature != clientSupportedTunnelTypes[0].signature) { | |
899 | return this._fail("Unsupported server", | |
900 | "Client's tunnel type had the incorrect " + | |
901 | "vendor or signature"); | |
b1dee947 | 902 | } |
6d6f0db0 SR |
903 | this._sock.send([0, 0, 0, 0]); // use NOTUNNEL |
904 | return false; // wait until we receive the sub auth count to continue | |
905 | } else { | |
906 | return this._fail("Unsupported server", | |
907 | "Server wanted tunnels, but doesn't support " + | |
908 | "the notunnel type"); | |
909 | } | |
910 | }, | |
b1dee947 | 911 | |
6d6f0db0 SR |
912 | _negotiate_tight_auth: function () { |
913 | if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation | |
914 | if (this._sock.rQwait("num tunnels", 4)) { return false; } | |
915 | var numTunnels = this._sock.rQshift32(); | |
916 | if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; } | |
c00ee156 | 917 | |
6d6f0db0 | 918 | this._rfb_tightvnc = true; |
b1dee947 | 919 | |
6d6f0db0 SR |
920 | if (numTunnels > 0) { |
921 | this._negotiate_tight_tunnels(numTunnels); | |
922 | return false; // wait until we receive the sub auth to continue | |
b1dee947 | 923 | } |
6d6f0db0 | 924 | } |
b1dee947 | 925 | |
6d6f0db0 SR |
926 | // second pass, do the sub-auth negotiation |
927 | if (this._sock.rQwait("sub auth count", 4)) { return false; } | |
928 | var subAuthCount = this._sock.rQshift32(); | |
929 | if (subAuthCount === 0) { // empty sub-auth list received means 'no auth' subtype selected | |
930 | this._rfb_init_state = 'SecurityResult'; | |
931 | return true; | |
932 | } | |
b1dee947 | 933 | |
6d6f0db0 | 934 | if (this._sock.rQwait("sub auth capabilities", 16 * subAuthCount, 4)) { return false; } |
b1dee947 | 935 | |
6d6f0db0 SR |
936 | var clientSupportedTypes = { |
937 | 'STDVNOAUTH__': 1, | |
938 | 'STDVVNCAUTH_': 2 | |
939 | }; | |
b1dee947 | 940 | |
6d6f0db0 | 941 | var serverSupportedTypes = []; |
95eb681b | 942 | |
6d6f0db0 SR |
943 | for (var i = 0; i < subAuthCount; i++) { |
944 | var capNum = this._sock.rQshift32(); | |
945 | var capabilities = this._sock.rQshiftStr(12); | |
946 | serverSupportedTypes.push(capabilities); | |
947 | } | |
d86cc2d9 | 948 | |
6d6f0db0 SR |
949 | for (var authType in clientSupportedTypes) { |
950 | if (serverSupportedTypes.indexOf(authType) != -1) { | |
951 | this._sock.send([0, 0, 0, clientSupportedTypes[authType]]); | |
d86cc2d9 | 952 | |
6d6f0db0 SR |
953 | switch (authType) { |
954 | case 'STDVNOAUTH__': // no auth | |
955 | this._rfb_init_state = 'SecurityResult'; | |
956 | return true; | |
957 | case 'STDVVNCAUTH_': // VNC auth | |
958 | this._rfb_auth_scheme = 2; | |
959 | return this._init_msg(); | |
960 | default: | |
961 | return this._fail("Unsupported server", | |
962 | "Unsupported tiny auth scheme: " + | |
963 | authType); | |
b1dee947 SR |
964 | } |
965 | } | |
6d6f0db0 | 966 | } |
b1dee947 | 967 | |
6d6f0db0 SR |
968 | return this._fail("Unsupported server", |
969 | "No supported sub-auth types!"); | |
970 | }, | |
971 | ||
972 | _negotiate_authentication: function () { | |
973 | switch (this._rfb_auth_scheme) { | |
974 | case 0: // connection failed | |
975 | if (this._sock.rQwait("auth reason", 4)) { return false; } | |
976 | var strlen = this._sock.rQshift32(); | |
977 | var reason = this._sock.rQshiftStr(strlen); | |
978 | return this._fail("Authentication failure", reason); | |
979 | ||
980 | case 1: // no auth | |
981 | if (this._rfb_version >= 3.8) { | |
982 | this._rfb_init_state = 'SecurityResult'; | |
983 | return true; | |
984 | } | |
985 | this._rfb_init_state = 'ClientInitialisation'; | |
986 | return this._init_msg(); | |
95eb681b | 987 | |
6d6f0db0 SR |
988 | case 22: // XVP auth |
989 | return this._negotiate_xvp_auth(); | |
d86cc2d9 | 990 | |
6d6f0db0 SR |
991 | case 2: // VNC authentication |
992 | return this._negotiate_std_vnc_auth(); | |
d86cc2d9 | 993 | |
6d6f0db0 SR |
994 | case 16: // TightVNC Security Type |
995 | return this._negotiate_tight_auth(); | |
d86cc2d9 | 996 | |
6d6f0db0 SR |
997 | default: |
998 | return this._fail("Unsupported server", | |
999 | "Unsupported auth scheme: " + | |
1000 | this._rfb_auth_scheme); | |
1001 | } | |
1002 | }, | |
1003 | ||
1004 | _handle_security_result: function () { | |
1005 | if (this._sock.rQwait('VNC auth response ', 4)) { return false; } | |
1006 | switch (this._sock.rQshift32()) { | |
1007 | case 0: // OK | |
1008 | this._rfb_init_state = 'ClientInitialisation'; | |
1009 | Log.Debug('Authentication OK'); | |
1010 | return this._init_msg(); | |
1011 | case 1: // failed | |
1012 | if (this._rfb_version >= 3.8) { | |
1013 | var length = this._sock.rQshift32(); | |
1014 | if (this._sock.rQwait("SecurityResult reason", length, 8)) { return false; } | |
1015 | var reason = this._sock.rQshiftStr(length); | |
1016 | return this._fail("Authentication failure", reason); | |
1017 | } else { | |
1018 | return this._fail("Authentication failure"); | |
d86cc2d9 | 1019 | } |
6d6f0db0 SR |
1020 | case 2: |
1021 | return this._fail("Too many authentication attempts"); | |
1022 | default: | |
1023 | return this._fail("Unsupported server", | |
1024 | "Unknown SecurityResult"); | |
1025 | } | |
1026 | }, | |
1027 | ||
1028 | _negotiate_server_init: function () { | |
1029 | if (this._sock.rQwait("server initialization", 24)) { return false; } | |
1030 | ||
1031 | /* Screen size */ | |
91d5c625 PO |
1032 | var width = this._sock.rQshift16(); |
1033 | var height = this._sock.rQshift16(); | |
6d6f0db0 SR |
1034 | |
1035 | /* PIXEL_FORMAT */ | |
1036 | var bpp = this._sock.rQshift8(); | |
1037 | var depth = this._sock.rQshift8(); | |
1038 | var big_endian = this._sock.rQshift8(); | |
1039 | var true_color = this._sock.rQshift8(); | |
1040 | ||
1041 | var red_max = this._sock.rQshift16(); | |
1042 | var green_max = this._sock.rQshift16(); | |
1043 | var blue_max = this._sock.rQshift16(); | |
1044 | var red_shift = this._sock.rQshift8(); | |
1045 | var green_shift = this._sock.rQshift8(); | |
1046 | var blue_shift = this._sock.rQshift8(); | |
1047 | this._sock.rQskipBytes(3); // padding | |
1048 | ||
1049 | // NB(directxman12): we don't want to call any callbacks or print messages until | |
1050 | // *after* we're past the point where we could backtrack | |
1051 | ||
1052 | /* Connection name/title */ | |
1053 | var name_length = this._sock.rQshift32(); | |
1054 | if (this._sock.rQwait('server init name', name_length, 24)) { return false; } | |
1055 | this._fb_name = decodeUTF8(this._sock.rQshiftStr(name_length)); | |
1056 | ||
1057 | if (this._rfb_tightvnc) { | |
1058 | if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; } | |
1059 | // In TightVNC mode, ServerInit message is extended | |
1060 | var numServerMessages = this._sock.rQshift16(); | |
1061 | var numClientMessages = this._sock.rQshift16(); | |
1062 | var numEncodings = this._sock.rQshift16(); | |
1063 | this._sock.rQskipBytes(2); // padding | |
1064 | ||
1065 | var totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16; | |
1066 | if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; } | |
1067 | ||
1068 | // we don't actually do anything with the capability information that TIGHT sends, | |
1069 | // so we just skip the all of this. | |
1070 | ||
1071 | // TIGHT server message capabilities | |
1072 | this._sock.rQskipBytes(16 * numServerMessages); | |
1073 | ||
1074 | // TIGHT client message capabilities | |
1075 | this._sock.rQskipBytes(16 * numClientMessages); | |
1076 | ||
1077 | // TIGHT encoding capabilities | |
1078 | this._sock.rQskipBytes(16 * numEncodings); | |
1079 | } | |
d86cc2d9 | 1080 | |
6d6f0db0 SR |
1081 | // NB(directxman12): these are down here so that we don't run them multiple times |
1082 | // if we backtrack | |
91d5c625 | 1083 | Log.Info("Screen: " + width + "x" + height + |
6d6f0db0 SR |
1084 | ", bpp: " + bpp + ", depth: " + depth + |
1085 | ", big_endian: " + big_endian + | |
1086 | ", true_color: " + true_color + | |
1087 | ", red_max: " + red_max + | |
1088 | ", green_max: " + green_max + | |
1089 | ", blue_max: " + blue_max + | |
1090 | ", red_shift: " + red_shift + | |
1091 | ", green_shift: " + green_shift + | |
1092 | ", blue_shift: " + blue_shift); | |
1093 | ||
1094 | if (big_endian !== 0) { | |
1095 | Log.Warn("Server native endian is not little endian"); | |
1096 | } | |
b1dee947 | 1097 | |
6d6f0db0 SR |
1098 | if (red_shift !== 16) { |
1099 | Log.Warn("Server native red-shift is not 16"); | |
1100 | } | |
b1dee947 | 1101 | |
6d6f0db0 SR |
1102 | if (blue_shift !== 0) { |
1103 | Log.Warn("Server native blue-shift is not 0"); | |
1104 | } | |
b1dee947 | 1105 | |
6d6f0db0 SR |
1106 | // we're past the point where we could backtrack, so it's safe to call this |
1107 | this._onDesktopName(this, this._fb_name); | |
b1dee947 | 1108 | |
91d5c625 | 1109 | this._resize(width, height); |
b1dee947 | 1110 | |
6d6f0db0 SR |
1111 | if (!this._view_only) { this._keyboard.grab(); } |
1112 | if (!this._view_only) { this._mouse.grab(); } | |
b1dee947 | 1113 | |
5a5f5ada PO |
1114 | this._fb_depth = 24; |
1115 | ||
1116 | if (this._fb_name === "Intel(r) AMT KVM") { | |
1117 | Log.Warn("Intel AMT KVM only supports 8/16 bit depths. Using low color mode."); | |
1118 | this._fb_depth = 8; | |
1119 | } | |
1120 | ||
1121 | RFB.messages.pixelFormat(this._sock, this._fb_depth, true); | |
49a81837 | 1122 | this._sendEncodings(); |
6d6f0db0 SR |
1123 | RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fb_width, this._fb_height); |
1124 | ||
1125 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1126 | this._timing.pixels = 0; | |
1127 | ||
cd74793b PO |
1128 | // Cursor will be server side until the server decides to honor |
1129 | // our request and send over the cursor image | |
1130 | this._display.disableLocalCursor(); | |
1131 | ||
6d6f0db0 SR |
1132 | this._updateConnectionState('connected'); |
1133 | return true; | |
1134 | }, | |
1135 | ||
49a81837 PO |
1136 | _sendEncodings: function () { |
1137 | var encs = []; | |
1138 | ||
1139 | // In preference order | |
1140 | encs.push(encodings.encodingCopyRect); | |
5a5f5ada PO |
1141 | // Only supported with full depth support |
1142 | if (this._fb_depth == 24) { | |
1143 | encs.push(encodings.encodingTight); | |
1144 | encs.push(encodings.encodingHextile); | |
1145 | encs.push(encodings.encodingRRE); | |
1146 | } | |
49a81837 PO |
1147 | encs.push(encodings.encodingRaw); |
1148 | ||
1149 | // Psuedo-encoding settings | |
1150 | encs.push(encodings.pseudoEncodingTightPNG); | |
1151 | encs.push(encodings.pseudoEncodingQualityLevel0 + 6); | |
1152 | encs.push(encodings.pseudoEncodingCompressLevel0 + 2); | |
1153 | ||
1154 | encs.push(encodings.pseudoEncodingDesktopSize); | |
1155 | encs.push(encodings.pseudoEncodingLastRect); | |
1156 | encs.push(encodings.pseudoEncodingQEMUExtendedKeyEvent); | |
1157 | encs.push(encodings.pseudoEncodingExtendedDesktopSize); | |
1158 | encs.push(encodings.pseudoEncodingXvp); | |
1159 | encs.push(encodings.pseudoEncodingFence); | |
1160 | encs.push(encodings.pseudoEncodingContinuousUpdates); | |
1161 | ||
5a5f5ada | 1162 | if (this._local_cursor && this._fb_depth == 24) { |
49a81837 PO |
1163 | encs.push(encodings.pseudoEncodingCursor); |
1164 | } | |
1165 | ||
1166 | RFB.messages.clientEncodings(this._sock, encs); | |
1167 | }, | |
1168 | ||
6d6f0db0 SR |
1169 | /* RFB protocol initialization states: |
1170 | * ProtocolVersion | |
1171 | * Security | |
1172 | * Authentication | |
1173 | * SecurityResult | |
1174 | * ClientInitialization - not triggered by server message | |
1175 | * ServerInitialization | |
1176 | */ | |
1177 | _init_msg: function () { | |
1178 | switch (this._rfb_init_state) { | |
1179 | case 'ProtocolVersion': | |
1180 | return this._negotiate_protocol_version(); | |
1181 | ||
1182 | case 'Security': | |
1183 | return this._negotiate_security(); | |
1184 | ||
1185 | case 'Authentication': | |
1186 | return this._negotiate_authentication(); | |
1187 | ||
1188 | case 'SecurityResult': | |
1189 | return this._handle_security_result(); | |
1190 | ||
1191 | case 'ClientInitialisation': | |
1192 | this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation | |
1193 | this._rfb_init_state = 'ServerInitialisation'; | |
1194 | return true; | |
b1dee947 | 1195 | |
6d6f0db0 SR |
1196 | case 'ServerInitialisation': |
1197 | return this._negotiate_server_init(); | |
b1dee947 | 1198 | |
6d6f0db0 SR |
1199 | default: |
1200 | return this._fail("Internal error", "Unknown init state: " + | |
1201 | this._rfb_init_state); | |
1202 | } | |
1203 | }, | |
b1dee947 | 1204 | |
6d6f0db0 SR |
1205 | _handle_set_colour_map_msg: function () { |
1206 | Log.Debug("SetColorMapEntries"); | |
b1dee947 | 1207 | |
26586b9d | 1208 | return this._fail("Protocol error", "Unexpected SetColorMapEntries message"); |
6d6f0db0 | 1209 | }, |
b1dee947 | 1210 | |
6d6f0db0 SR |
1211 | _handle_server_cut_text: function () { |
1212 | Log.Debug("ServerCutText"); | |
b1dee947 | 1213 | |
6d6f0db0 SR |
1214 | if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; } |
1215 | this._sock.rQskipBytes(3); // Padding | |
1216 | var length = this._sock.rQshift32(); | |
1217 | if (this._sock.rQwait("ServerCutText", length, 8)) { return false; } | |
b1dee947 | 1218 | |
6d6f0db0 | 1219 | var text = this._sock.rQshiftStr(length); |
b4ff032e SR |
1220 | |
1221 | if (this._view_only) { return true; } | |
1222 | ||
6d6f0db0 | 1223 | this._onClipboard(this, text); |
b1dee947 | 1224 | |
6d6f0db0 SR |
1225 | return true; |
1226 | }, | |
b1dee947 | 1227 | |
6d6f0db0 SR |
1228 | _handle_server_fence_msg: function() { |
1229 | if (this._sock.rQwait("ServerFence header", 8, 1)) { return false; } | |
1230 | this._sock.rQskipBytes(3); // Padding | |
1231 | var flags = this._sock.rQshift32(); | |
1232 | var length = this._sock.rQshift8(); | |
b1dee947 | 1233 | |
6d6f0db0 | 1234 | if (this._sock.rQwait("ServerFence payload", length, 9)) { return false; } |
b1dee947 | 1235 | |
6d6f0db0 SR |
1236 | if (length > 64) { |
1237 | Log.Warn("Bad payload length (" + length + ") in fence response"); | |
1238 | length = 64; | |
1239 | } | |
4e0c36dd | 1240 | |
6d6f0db0 | 1241 | var payload = this._sock.rQshiftStr(length); |
b1dee947 | 1242 | |
6d6f0db0 | 1243 | this._supportsFence = true; |
b1dee947 | 1244 | |
6d6f0db0 SR |
1245 | /* |
1246 | * Fence flags | |
1247 | * | |
1248 | * (1<<0) - BlockBefore | |
1249 | * (1<<1) - BlockAfter | |
1250 | * (1<<2) - SyncNext | |
1251 | * (1<<31) - Request | |
1252 | */ | |
b1dee947 | 1253 | |
6d6f0db0 SR |
1254 | if (!(flags & (1<<31))) { |
1255 | return this._fail("Internal error", | |
1256 | "Unexpected fence response"); | |
1257 | } | |
b1dee947 | 1258 | |
6d6f0db0 SR |
1259 | // Filter out unsupported flags |
1260 | // FIXME: support syncNext | |
1261 | flags &= (1<<0) | (1<<1); | |
b1dee947 | 1262 | |
6d6f0db0 SR |
1263 | // BlockBefore and BlockAfter are automatically handled by |
1264 | // the fact that we process each incoming message | |
1265 | // synchronuosly. | |
1266 | RFB.messages.clientFence(this._sock, flags, payload); | |
f78a652e | 1267 | |
6d6f0db0 SR |
1268 | return true; |
1269 | }, | |
b1dee947 | 1270 | |
6d6f0db0 SR |
1271 | _handle_xvp_msg: function () { |
1272 | if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; } | |
1273 | this._sock.rQskip8(); // Padding | |
1274 | var xvp_ver = this._sock.rQshift8(); | |
1275 | var xvp_msg = this._sock.rQshift8(); | |
b1dee947 | 1276 | |
6d6f0db0 SR |
1277 | switch (xvp_msg) { |
1278 | case 0: // XVP_FAIL | |
1279 | Log.Error("Operation Failed"); | |
1280 | this._notification("XVP Operation Failed", 'error'); | |
1281 | break; | |
1282 | case 1: // XVP_INIT | |
1283 | this._rfb_xvp_ver = xvp_ver; | |
1284 | Log.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")"); | |
832be262 | 1285 | this._setCapability("power", true); |
6d6f0db0 SR |
1286 | break; |
1287 | default: | |
1288 | this._fail("Unexpected server message", | |
1289 | "Illegal server XVP message " + xvp_msg); | |
1290 | break; | |
1291 | } | |
b1dee947 | 1292 | |
6d6f0db0 SR |
1293 | return true; |
1294 | }, | |
3df13262 | 1295 | |
6d6f0db0 SR |
1296 | _normal_msg: function () { |
1297 | var msg_type; | |
76a86ff5 | 1298 | |
6d6f0db0 SR |
1299 | if (this._FBU.rects > 0) { |
1300 | msg_type = 0; | |
1301 | } else { | |
1302 | msg_type = this._sock.rQshift8(); | |
1303 | } | |
76a86ff5 | 1304 | |
6d6f0db0 SR |
1305 | switch (msg_type) { |
1306 | case 0: // FramebufferUpdate | |
1307 | var ret = this._framebufferUpdate(); | |
1308 | if (ret && !this._enabledContinuousUpdates) { | |
1309 | RFB.messages.fbUpdateRequest(this._sock, true, 0, 0, | |
1310 | this._fb_width, this._fb_height); | |
1311 | } | |
1312 | return ret; | |
3df13262 | 1313 | |
6d6f0db0 SR |
1314 | case 1: // SetColorMapEntries |
1315 | return this._handle_set_colour_map_msg(); | |
1316 | ||
1317 | case 2: // Bell | |
1318 | Log.Debug("Bell"); | |
1319 | this._onBell(this); | |
1320 | return true; | |
1321 | ||
1322 | case 3: // ServerCutText | |
1323 | return this._handle_server_cut_text(); | |
1324 | ||
1325 | case 150: // EndOfContinuousUpdates | |
1326 | var first = !(this._supportsContinuousUpdates); | |
1327 | this._supportsContinuousUpdates = true; | |
1328 | this._enabledContinuousUpdates = false; | |
1329 | if (first) { | |
1330 | this._enabledContinuousUpdates = true; | |
1331 | this._updateContinuousUpdates(); | |
1332 | Log.Info("Enabling continuous updates."); | |
1333 | } else { | |
1334 | // FIXME: We need to send a framebufferupdaterequest here | |
1335 | // if we add support for turning off continuous updates | |
1336 | } | |
1337 | return true; | |
3df13262 | 1338 | |
6d6f0db0 SR |
1339 | case 248: // ServerFence |
1340 | return this._handle_server_fence_msg(); | |
3df13262 | 1341 | |
6d6f0db0 SR |
1342 | case 250: // XVP |
1343 | return this._handle_xvp_msg(); | |
3df13262 | 1344 | |
6d6f0db0 SR |
1345 | default: |
1346 | this._fail("Unexpected server message", "Type:" + msg_type); | |
1347 | Log.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30)); | |
1348 | return true; | |
1349 | } | |
1350 | }, | |
3df13262 | 1351 | |
6d6f0db0 SR |
1352 | _onFlush: function() { |
1353 | this._flushing = false; | |
1354 | // Resume processing | |
1355 | if (this._sock.rQlen() > 0) { | |
1356 | this._handle_message(); | |
1357 | } | |
1358 | }, | |
3df13262 | 1359 | |
6d6f0db0 SR |
1360 | _framebufferUpdate: function () { |
1361 | var ret = true; | |
1362 | var now; | |
3df13262 | 1363 | |
6d6f0db0 SR |
1364 | if (this._FBU.rects === 0) { |
1365 | if (this._sock.rQwait("FBU header", 3, 1)) { return false; } | |
b1dee947 | 1366 | this._sock.rQskip8(); // Padding |
6d6f0db0 SR |
1367 | this._FBU.rects = this._sock.rQshift16(); |
1368 | this._FBU.bytes = 0; | |
1369 | this._timing.cur_fbu = 0; | |
1370 | if (this._timing.fbu_rt_start > 0) { | |
1371 | now = (new Date()).getTime(); | |
1372 | Log.Info("First FBU latency: " + (now - this._timing.fbu_rt_start)); | |
b1dee947 SR |
1373 | } |
1374 | ||
6d6f0db0 SR |
1375 | // Make sure the previous frame is fully rendered first |
1376 | // to avoid building up an excessive queue | |
1377 | if (this._display.pending()) { | |
1378 | this._flushing = true; | |
1379 | this._display.flush(); | |
1380 | return false; | |
1381 | } | |
1382 | } | |
b1dee947 | 1383 | |
6d6f0db0 SR |
1384 | while (this._FBU.rects > 0) { |
1385 | if (this._rfb_connection_state !== 'connected') { return false; } | |
b1dee947 | 1386 | |
6d6f0db0 SR |
1387 | if (this._sock.rQwait("FBU", this._FBU.bytes)) { return false; } |
1388 | if (this._FBU.bytes === 0) { | |
1389 | if (this._sock.rQwait("rect header", 12)) { return false; } | |
1390 | /* New FramebufferUpdate */ | |
b1dee947 | 1391 | |
6d6f0db0 SR |
1392 | var hdr = this._sock.rQshiftBytes(12); |
1393 | this._FBU.x = (hdr[0] << 8) + hdr[1]; | |
1394 | this._FBU.y = (hdr[2] << 8) + hdr[3]; | |
1395 | this._FBU.width = (hdr[4] << 8) + hdr[5]; | |
1396 | this._FBU.height = (hdr[6] << 8) + hdr[7]; | |
1397 | this._FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
1398 | (hdr[10] << 8) + hdr[11], 10); | |
b1dee947 | 1399 | |
6d6f0db0 SR |
1400 | this._onFBUReceive(this, |
1401 | {'x': this._FBU.x, 'y': this._FBU.y, | |
1402 | 'width': this._FBU.width, 'height': this._FBU.height, | |
1403 | 'encoding': this._FBU.encoding, | |
f8ec2df2 | 1404 | 'encodingName': encodingName(this._FBU.encoding)}); |
b1dee947 | 1405 | |
49a81837 | 1406 | if (!this._encHandlers[this._FBU.encoding]) { |
6d6f0db0 SR |
1407 | this._fail("Unexpected server message", |
1408 | "Unsupported encoding " + | |
1409 | this._FBU.encoding); | |
1410 | return false; | |
1411 | } | |
1412 | } | |
b1dee947 | 1413 | |
6d6f0db0 | 1414 | this._timing.last_fbu = (new Date()).getTime(); |
76a86ff5 | 1415 | |
6d6f0db0 | 1416 | ret = this._encHandlers[this._FBU.encoding](); |
3df13262 | 1417 | |
6d6f0db0 SR |
1418 | now = (new Date()).getTime(); |
1419 | this._timing.cur_fbu += (now - this._timing.last_fbu); | |
b1dee947 | 1420 | |
6d6f0db0 | 1421 | if (ret) { |
c3386227 PO |
1422 | if (!(this._FBU.encoding in this._encStats)) { |
1423 | this._encStats[this._FBU.encoding] = [0, 0]; | |
1424 | } | |
6d6f0db0 SR |
1425 | this._encStats[this._FBU.encoding][0]++; |
1426 | this._encStats[this._FBU.encoding][1]++; | |
1427 | this._timing.pixels += this._FBU.width * this._FBU.height; | |
b1dee947 | 1428 | } |
b1dee947 | 1429 | |
6d6f0db0 SR |
1430 | if (this._timing.pixels >= (this._fb_width * this._fb_height)) { |
1431 | if ((this._FBU.width === this._fb_width && this._FBU.height === this._fb_height) || | |
1432 | this._timing.fbu_rt_start > 0) { | |
1433 | this._timing.full_fbu_total += this._timing.cur_fbu; | |
1434 | this._timing.full_fbu_cnt++; | |
1435 | Log.Info("Timing of full FBU, curr: " + | |
1436 | this._timing.cur_fbu + ", total: " + | |
1437 | this._timing.full_fbu_total + ", cnt: " + | |
1438 | this._timing.full_fbu_cnt + ", avg: " + | |
1439 | (this._timing.full_fbu_total / this._timing.full_fbu_cnt)); | |
b1dee947 | 1440 | } |
d9ca5e5b | 1441 | |
6d6f0db0 SR |
1442 | if (this._timing.fbu_rt_start > 0) { |
1443 | var fbu_rt_diff = now - this._timing.fbu_rt_start; | |
1444 | this._timing.fbu_rt_total += fbu_rt_diff; | |
1445 | this._timing.fbu_rt_cnt++; | |
1446 | Log.Info("full FBU round-trip, cur: " + | |
1447 | fbu_rt_diff + ", total: " + | |
1448 | this._timing.fbu_rt_total + ", cnt: " + | |
1449 | this._timing.fbu_rt_cnt + ", avg: " + | |
1450 | (this._timing.fbu_rt_total / this._timing.fbu_rt_cnt)); | |
1451 | this._timing.fbu_rt_start = 0; | |
d9ca5e5b | 1452 | } |
b1dee947 SR |
1453 | } |
1454 | ||
6d6f0db0 SR |
1455 | if (!ret) { return ret; } // need more data |
1456 | } | |
b1dee947 | 1457 | |
6d6f0db0 | 1458 | this._display.flip(); |
b1dee947 | 1459 | |
c7c6cb19 | 1460 | this._onFBUComplete(this); |
b1dee947 | 1461 | |
6d6f0db0 SR |
1462 | return true; // We finished this FBU |
1463 | }, | |
b1dee947 | 1464 | |
6d6f0db0 SR |
1465 | _updateContinuousUpdates: function() { |
1466 | if (!this._enabledContinuousUpdates) { return; } | |
b1dee947 | 1467 | |
6d6f0db0 SR |
1468 | RFB.messages.enableContinuousUpdates(this._sock, true, 0, 0, |
1469 | this._fb_width, this._fb_height); | |
91d5c625 PO |
1470 | }, |
1471 | ||
1472 | _resize: function(width, height) { | |
1473 | this._fb_width = width; | |
1474 | this._fb_height = height; | |
1475 | ||
1476 | this._destBuff = new Uint8Array(this._fb_width * this._fb_height * 4); | |
1477 | ||
1478 | this._display.resize(this._fb_width, this._fb_height); | |
1479 | this._onFBResize(this, this._fb_width, this._fb_height); | |
1480 | ||
1481 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
1482 | this._updateContinuousUpdates(); | |
cd523e8f PO |
1483 | }, |
1484 | ||
1485 | _xvpOp: function (ver, op) { | |
1486 | if (this._rfb_xvp_ver < ver) { return; } | |
1487 | Log.Info("Sending XVP operation " + op + " (version " + ver + ")"); | |
1488 | RFB.messages.xvpOp(this._sock, ver, op); | |
1489 | }, | |
6d6f0db0 | 1490 | }; |
8db09746 | 1491 | |
6d6f0db0 SR |
1492 | make_properties(RFB, [ |
1493 | ['target', 'wo', 'dom'], // VNC display rendering Canvas object | |
6d6f0db0 | 1494 | ['encrypt', 'rw', 'bool'], // Use TLS/SSL/wss encryption |
6d6f0db0 SR |
1495 | ['local_cursor', 'rw', 'bool'], // Request locally rendered cursor |
1496 | ['shared', 'rw', 'bool'], // Request shared mode | |
1497 | ['view_only', 'rw', 'bool'], // Disable client mouse/keyboard | |
f976b550 | 1498 | ['touchButton', 'rw', 'int'], // Button mask (1, 2, 4) for touch devices (0 means ignore clicks) |
b9854a5c PO |
1499 | ['scale', 'rw', 'float'], // Display area scale factor |
1500 | ['viewport', 'rw', 'bool'], // Use viewport clipping | |
6d6f0db0 SR |
1501 | ['disconnectTimeout', 'rw', 'int'], // Time (s) to wait for disconnection |
1502 | ['wsProtocols', 'rw', 'arr'], // Protocols to use in the WebSocket connection | |
1503 | ['repeaterID', 'rw', 'str'], // [UltraVNC] RepeaterID to connect to | |
1504 | ['viewportDrag', 'rw', 'bool'], // Move the viewport on mouse drags | |
cd523e8f | 1505 | ['capabilities', 'ro', 'arr'], // Supported capabilities |
6d6f0db0 SR |
1506 | |
1507 | // Callback functions | |
1508 | ['onUpdateState', 'rw', 'func'], // onUpdateState(rfb, state, oldstate): connection state change | |
1509 | ['onNotification', 'rw', 'func'], // onNotification(rfb, msg, level, options): notification for the UI | |
1510 | ['onDisconnected', 'rw', 'func'], // onDisconnected(rfb, reason): disconnection finished | |
430f00d6 | 1511 | ['onCredentialsRequired', 'rw', 'func'], // onCredentialsRequired(rfb, types): VNC credentials are required |
6d6f0db0 SR |
1512 | ['onClipboard', 'rw', 'func'], // onClipboard(rfb, text): RFB clipboard contents received |
1513 | ['onBell', 'rw', 'func'], // onBell(rfb): RFB Bell message received | |
1514 | ['onFBUReceive', 'rw', 'func'], // onFBUReceive(rfb, fbu): RFB FBU received but not yet processed | |
1515 | ['onFBUComplete', 'rw', 'func'], // onFBUComplete(rfb, fbu): RFB FBU received and processed | |
1516 | ['onFBResize', 'rw', 'func'], // onFBResize(rfb, width, height): frame buffer resized | |
1517 | ['onDesktopName', 'rw', 'func'], // onDesktopName(rfb, name): desktop name received | |
cd523e8f | 1518 | ['onCapabilities', 'rw', 'func'] // onCapabilities(rfb, caps): the supported capabilities has changed |
6d6f0db0 SR |
1519 | ]); |
1520 | ||
1521 | RFB.prototype.set_local_cursor = function (cursor) { | |
1522 | if (!cursor || (cursor in {'0': 1, 'no': 1, 'false': 1})) { | |
1523 | this._local_cursor = false; | |
1524 | this._display.disableLocalCursor(); //Only show server-side cursor | |
1525 | } else { | |
1526 | if (this._display.get_cursor_uri()) { | |
1527 | this._local_cursor = true; | |
1528 | } else { | |
1529 | Log.Warn("Browser does not support local cursor"); | |
1530 | this._display.disableLocalCursor(); | |
1531 | } | |
1532 | } | |
d86cc2d9 | 1533 | |
6d6f0db0 SR |
1534 | // Need to send an updated list of encodings if we are connected |
1535 | if (this._rfb_connection_state === "connected") { | |
49a81837 | 1536 | this._sendEncodings(); |
6d6f0db0 SR |
1537 | } |
1538 | }; | |
2ba767a7 | 1539 | |
6d6f0db0 SR |
1540 | RFB.prototype.set_view_only = function (view_only) { |
1541 | this._view_only = view_only; | |
8db09746 | 1542 | |
6d6f0db0 SR |
1543 | if (this._rfb_connection_state === "connecting" || |
1544 | this._rfb_connection_state === "connected") { | |
1545 | if (view_only) { | |
1546 | this._keyboard.ungrab(); | |
1547 | this._mouse.ungrab(); | |
1548 | } else { | |
1549 | this._keyboard.grab(); | |
1550 | this._mouse.grab(); | |
1551 | } | |
1552 | } | |
1553 | }; | |
76a86ff5 | 1554 | |
f976b550 PO |
1555 | RFB.prototype.set_touchButton = function (button) { |
1556 | this._mouse.set_touchButton(button); | |
1557 | }; | |
1558 | ||
1559 | RFB.prototype.get_touchButton = function () { | |
1560 | return this._mouse.get_touchButton(); | |
1561 | }; | |
1562 | ||
b9854a5c PO |
1563 | RFB.prototype.set_scale = function (scale) { |
1564 | this._display.set_scale(scale); | |
1565 | }; | |
1566 | ||
1567 | RFB.prototype.get_scale = function () { | |
1568 | return this._display.get_scale(); | |
1569 | }; | |
1570 | ||
1571 | RFB.prototype.set_viewport = function (viewport) { | |
1572 | this._display.set_viewport(viewport); | |
1573 | }; | |
1574 | ||
1575 | RFB.prototype.get_viewport = function () { | |
1576 | return this._display.get_viewport(); | |
1577 | }; | |
1578 | ||
6d6f0db0 SR |
1579 | // Class Methods |
1580 | RFB.messages = { | |
1581 | keyEvent: function (sock, keysym, down) { | |
1582 | var buff = sock._sQ; | |
1583 | var offset = sock._sQlen; | |
8db09746 | 1584 | |
6d6f0db0 SR |
1585 | buff[offset] = 4; // msg-type |
1586 | buff[offset + 1] = down; | |
b1dee947 | 1587 | |
6d6f0db0 SR |
1588 | buff[offset + 2] = 0; |
1589 | buff[offset + 3] = 0; | |
fb49f91b | 1590 | |
6d6f0db0 SR |
1591 | buff[offset + 4] = (keysym >> 24); |
1592 | buff[offset + 5] = (keysym >> 16); | |
1593 | buff[offset + 6] = (keysym >> 8); | |
1594 | buff[offset + 7] = keysym; | |
b1dee947 | 1595 | |
6d6f0db0 SR |
1596 | sock._sQlen += 8; |
1597 | sock.flush(); | |
1598 | }, | |
ef1e8bab | 1599 | |
6d6f0db0 SR |
1600 | QEMUExtendedKeyEvent: function (sock, keysym, down, keycode) { |
1601 | function getRFBkeycode(xt_scancode) { | |
1602 | var upperByte = (keycode >> 8); | |
1603 | var lowerByte = (keycode & 0x00ff); | |
1604 | if (upperByte === 0xe0 && lowerByte < 0x7f) { | |
1605 | lowerByte = lowerByte | 0x80; | |
1606 | return lowerByte; | |
ef1e8bab | 1607 | } |
6d6f0db0 | 1608 | return xt_scancode; |
ef1e8bab | 1609 | } |
b1dee947 | 1610 | |
6d6f0db0 SR |
1611 | var buff = sock._sQ; |
1612 | var offset = sock._sQlen; | |
8f06673a | 1613 | |
6d6f0db0 SR |
1614 | buff[offset] = 255; // msg-type |
1615 | buff[offset + 1] = 0; // sub msg-type | |
8f06673a | 1616 | |
6d6f0db0 SR |
1617 | buff[offset + 2] = (down >> 8); |
1618 | buff[offset + 3] = down; | |
8f06673a | 1619 | |
6d6f0db0 SR |
1620 | buff[offset + 4] = (keysym >> 24); |
1621 | buff[offset + 5] = (keysym >> 16); | |
1622 | buff[offset + 6] = (keysym >> 8); | |
1623 | buff[offset + 7] = keysym; | |
8f06673a | 1624 | |
6d6f0db0 | 1625 | var RFBkeycode = getRFBkeycode(keycode); |
8f06673a | 1626 | |
6d6f0db0 SR |
1627 | buff[offset + 8] = (RFBkeycode >> 24); |
1628 | buff[offset + 9] = (RFBkeycode >> 16); | |
1629 | buff[offset + 10] = (RFBkeycode >> 8); | |
1630 | buff[offset + 11] = RFBkeycode; | |
8f06673a | 1631 | |
6d6f0db0 SR |
1632 | sock._sQlen += 12; |
1633 | sock.flush(); | |
1634 | }, | |
8f06673a | 1635 | |
6d6f0db0 SR |
1636 | pointerEvent: function (sock, x, y, mask) { |
1637 | var buff = sock._sQ; | |
1638 | var offset = sock._sQlen; | |
8f06673a | 1639 | |
6d6f0db0 | 1640 | buff[offset] = 5; // msg-type |
9ff86fb7 | 1641 | |
6d6f0db0 | 1642 | buff[offset + 1] = mask; |
9ff86fb7 | 1643 | |
6d6f0db0 SR |
1644 | buff[offset + 2] = x >> 8; |
1645 | buff[offset + 3] = x; | |
9ff86fb7 | 1646 | |
6d6f0db0 SR |
1647 | buff[offset + 4] = y >> 8; |
1648 | buff[offset + 5] = y; | |
9ff86fb7 | 1649 | |
6d6f0db0 SR |
1650 | sock._sQlen += 6; |
1651 | sock.flush(); | |
1652 | }, | |
9ff86fb7 | 1653 | |
6d6f0db0 SR |
1654 | // TODO(directxman12): make this unicode compatible? |
1655 | clientCutText: function (sock, text) { | |
1656 | var buff = sock._sQ; | |
1657 | var offset = sock._sQlen; | |
b1dee947 | 1658 | |
6d6f0db0 | 1659 | buff[offset] = 6; // msg-type |
9ff86fb7 | 1660 | |
6d6f0db0 SR |
1661 | buff[offset + 1] = 0; // padding |
1662 | buff[offset + 2] = 0; // padding | |
1663 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1664 | |
6d6f0db0 | 1665 | var n = text.length; |
9ff86fb7 | 1666 | |
6d6f0db0 SR |
1667 | buff[offset + 4] = n >> 24; |
1668 | buff[offset + 5] = n >> 16; | |
1669 | buff[offset + 6] = n >> 8; | |
1670 | buff[offset + 7] = n; | |
9ff86fb7 | 1671 | |
6d6f0db0 SR |
1672 | for (var i = 0; i < n; i++) { |
1673 | buff[offset + 8 + i] = text.charCodeAt(i); | |
1674 | } | |
9ff86fb7 | 1675 | |
6d6f0db0 SR |
1676 | sock._sQlen += 8 + n; |
1677 | sock.flush(); | |
1678 | }, | |
1679 | ||
1680 | setDesktopSize: function (sock, width, height, id, flags) { | |
1681 | var buff = sock._sQ; | |
1682 | var offset = sock._sQlen; | |
1683 | ||
1684 | buff[offset] = 251; // msg-type | |
1685 | buff[offset + 1] = 0; // padding | |
1686 | buff[offset + 2] = width >> 8; // width | |
1687 | buff[offset + 3] = width; | |
1688 | buff[offset + 4] = height >> 8; // height | |
1689 | buff[offset + 5] = height; | |
1690 | ||
1691 | buff[offset + 6] = 1; // number-of-screens | |
1692 | buff[offset + 7] = 0; // padding | |
1693 | ||
1694 | // screen array | |
1695 | buff[offset + 8] = id >> 24; // id | |
1696 | buff[offset + 9] = id >> 16; | |
1697 | buff[offset + 10] = id >> 8; | |
1698 | buff[offset + 11] = id; | |
1699 | buff[offset + 12] = 0; // x-position | |
1700 | buff[offset + 13] = 0; | |
1701 | buff[offset + 14] = 0; // y-position | |
1702 | buff[offset + 15] = 0; | |
1703 | buff[offset + 16] = width >> 8; // width | |
1704 | buff[offset + 17] = width; | |
1705 | buff[offset + 18] = height >> 8; // height | |
1706 | buff[offset + 19] = height; | |
1707 | buff[offset + 20] = flags >> 24; // flags | |
1708 | buff[offset + 21] = flags >> 16; | |
1709 | buff[offset + 22] = flags >> 8; | |
1710 | buff[offset + 23] = flags; | |
1711 | ||
1712 | sock._sQlen += 24; | |
1713 | sock.flush(); | |
1714 | }, | |
1715 | ||
1716 | clientFence: function (sock, flags, payload) { | |
1717 | var buff = sock._sQ; | |
1718 | var offset = sock._sQlen; | |
1719 | ||
1720 | buff[offset] = 248; // msg-type | |
1721 | ||
1722 | buff[offset + 1] = 0; // padding | |
1723 | buff[offset + 2] = 0; // padding | |
1724 | buff[offset + 3] = 0; // padding | |
1725 | ||
1726 | buff[offset + 4] = flags >> 24; // flags | |
1727 | buff[offset + 5] = flags >> 16; | |
1728 | buff[offset + 6] = flags >> 8; | |
1729 | buff[offset + 7] = flags; | |
1730 | ||
1731 | var n = payload.length; | |
1732 | ||
1733 | buff[offset + 8] = n; // length | |
1734 | ||
1735 | for (var i = 0; i < n; i++) { | |
1736 | buff[offset + 9 + i] = payload.charCodeAt(i); | |
1737 | } | |
a7a89626 | 1738 | |
6d6f0db0 SR |
1739 | sock._sQlen += 9 + n; |
1740 | sock.flush(); | |
1741 | }, | |
3df13262 | 1742 | |
6d6f0db0 SR |
1743 | enableContinuousUpdates: function (sock, enable, x, y, width, height) { |
1744 | var buff = sock._sQ; | |
1745 | var offset = sock._sQlen; | |
3df13262 | 1746 | |
6d6f0db0 SR |
1747 | buff[offset] = 150; // msg-type |
1748 | buff[offset + 1] = enable; // enable-flag | |
76a86ff5 | 1749 | |
6d6f0db0 SR |
1750 | buff[offset + 2] = x >> 8; // x |
1751 | buff[offset + 3] = x; | |
1752 | buff[offset + 4] = y >> 8; // y | |
1753 | buff[offset + 5] = y; | |
1754 | buff[offset + 6] = width >> 8; // width | |
1755 | buff[offset + 7] = width; | |
1756 | buff[offset + 8] = height >> 8; // height | |
1757 | buff[offset + 9] = height; | |
76a86ff5 | 1758 | |
6d6f0db0 SR |
1759 | sock._sQlen += 10; |
1760 | sock.flush(); | |
1761 | }, | |
76a86ff5 | 1762 | |
5a5f5ada | 1763 | pixelFormat: function (sock, depth, true_color) { |
6d6f0db0 SR |
1764 | var buff = sock._sQ; |
1765 | var offset = sock._sQlen; | |
ae116051 | 1766 | |
5a5f5ada PO |
1767 | var bpp, bits; |
1768 | ||
1769 | if (depth > 16) { | |
1770 | bpp = 32; | |
1771 | } else if (depth > 8) { | |
1772 | bpp = 16; | |
1773 | } else { | |
1774 | bpp = 8; | |
1775 | } | |
1776 | ||
1777 | bits = Math.floor(depth/3); | |
1778 | ||
6d6f0db0 | 1779 | buff[offset] = 0; // msg-type |
9ff86fb7 | 1780 | |
6d6f0db0 SR |
1781 | buff[offset + 1] = 0; // padding |
1782 | buff[offset + 2] = 0; // padding | |
1783 | buff[offset + 3] = 0; // padding | |
9ff86fb7 | 1784 | |
5a5f5ada PO |
1785 | buff[offset + 4] = bpp; // bits-per-pixel |
1786 | buff[offset + 5] = depth; // depth | |
6d6f0db0 SR |
1787 | buff[offset + 6] = 0; // little-endian |
1788 | buff[offset + 7] = true_color ? 1 : 0; // true-color | |
9ff86fb7 | 1789 | |
6d6f0db0 | 1790 | buff[offset + 8] = 0; // red-max |
5a5f5ada | 1791 | buff[offset + 9] = (1 << bits) - 1; // red-max |
9ff86fb7 | 1792 | |
6d6f0db0 | 1793 | buff[offset + 10] = 0; // green-max |
5a5f5ada | 1794 | buff[offset + 11] = (1 << bits) - 1; // green-max |
9ff86fb7 | 1795 | |
6d6f0db0 | 1796 | buff[offset + 12] = 0; // blue-max |
5a5f5ada | 1797 | buff[offset + 13] = (1 << bits) - 1; // blue-max |
9ff86fb7 | 1798 | |
5a5f5ada PO |
1799 | buff[offset + 14] = bits * 2; // red-shift |
1800 | buff[offset + 15] = bits * 1; // green-shift | |
1801 | buff[offset + 16] = bits * 0; // blue-shift | |
9ff86fb7 | 1802 | |
6d6f0db0 SR |
1803 | buff[offset + 17] = 0; // padding |
1804 | buff[offset + 18] = 0; // padding | |
1805 | buff[offset + 19] = 0; // padding | |
9ff86fb7 | 1806 | |
6d6f0db0 SR |
1807 | sock._sQlen += 20; |
1808 | sock.flush(); | |
1809 | }, | |
9ff86fb7 | 1810 | |
49a81837 | 1811 | clientEncodings: function (sock, encodings) { |
6d6f0db0 SR |
1812 | var buff = sock._sQ; |
1813 | var offset = sock._sQlen; | |
b1dee947 | 1814 | |
6d6f0db0 SR |
1815 | buff[offset] = 2; // msg-type |
1816 | buff[offset + 1] = 0; // padding | |
b1dee947 | 1817 | |
49a81837 PO |
1818 | buff[offset + 2] = encodings.length >> 8; |
1819 | buff[offset + 3] = encodings.length; | |
9ff86fb7 | 1820 | |
49a81837 | 1821 | var i, j = offset + 4; |
6d6f0db0 | 1822 | for (i = 0; i < encodings.length; i++) { |
49a81837 PO |
1823 | var enc = encodings[i]; |
1824 | buff[j] = enc >> 24; | |
1825 | buff[j + 1] = enc >> 16; | |
1826 | buff[j + 2] = enc >> 8; | |
1827 | buff[j + 3] = enc; | |
a7a89626 | 1828 | |
49a81837 PO |
1829 | j += 4; |
1830 | } | |
a7a89626 | 1831 | |
6d6f0db0 SR |
1832 | sock._sQlen += j - offset; |
1833 | sock.flush(); | |
1834 | }, | |
a679a97d | 1835 | |
6d6f0db0 SR |
1836 | fbUpdateRequest: function (sock, incremental, x, y, w, h) { |
1837 | var buff = sock._sQ; | |
1838 | var offset = sock._sQlen; | |
9ff86fb7 | 1839 | |
6d6f0db0 SR |
1840 | if (typeof(x) === "undefined") { x = 0; } |
1841 | if (typeof(y) === "undefined") { y = 0; } | |
b1dee947 | 1842 | |
6d6f0db0 SR |
1843 | buff[offset] = 3; // msg-type |
1844 | buff[offset + 1] = incremental ? 1 : 0; | |
9ff86fb7 | 1845 | |
6d6f0db0 SR |
1846 | buff[offset + 2] = (x >> 8) & 0xFF; |
1847 | buff[offset + 3] = x & 0xFF; | |
9ff86fb7 | 1848 | |
6d6f0db0 SR |
1849 | buff[offset + 4] = (y >> 8) & 0xFF; |
1850 | buff[offset + 5] = y & 0xFF; | |
9ff86fb7 | 1851 | |
6d6f0db0 SR |
1852 | buff[offset + 6] = (w >> 8) & 0xFF; |
1853 | buff[offset + 7] = w & 0xFF; | |
9ff86fb7 | 1854 | |
6d6f0db0 SR |
1855 | buff[offset + 8] = (h >> 8) & 0xFF; |
1856 | buff[offset + 9] = h & 0xFF; | |
b1dee947 | 1857 | |
6d6f0db0 SR |
1858 | sock._sQlen += 10; |
1859 | sock.flush(); | |
85b35fc0 PO |
1860 | }, |
1861 | ||
1862 | xvpOp: function (sock, ver, op) { | |
1863 | var buff = sock._sQ; | |
1864 | var offset = sock._sQlen; | |
1865 | ||
1866 | buff[offset] = 250; // msg-type | |
1867 | buff[offset + 1] = 0; // padding | |
1868 | ||
1869 | buff[offset + 2] = ver; | |
1870 | buff[offset + 3] = op; | |
1871 | ||
1872 | sock._sQlen += 4; | |
1873 | sock.flush(); | |
1874 | }, | |
6d6f0db0 | 1875 | }; |
b1dee947 | 1876 | |
6d6f0db0 SR |
1877 | RFB.genDES = function (password, challenge) { |
1878 | var passwd = []; | |
1879 | for (var i = 0; i < password.length; i++) { | |
1880 | passwd.push(password.charCodeAt(i)); | |
1881 | } | |
1882 | return (new DES(passwd)).encrypt(challenge); | |
1883 | }; | |
b1dee947 | 1884 | |
6d6f0db0 SR |
1885 | RFB.encodingHandlers = { |
1886 | RAW: function () { | |
1887 | if (this._FBU.lines === 0) { | |
1888 | this._FBU.lines = this._FBU.height; | |
1889 | } | |
a7a89626 | 1890 | |
5a5f5ada PO |
1891 | var pixelSize = this._fb_depth == 8 ? 1 : 4; |
1892 | this._FBU.bytes = this._FBU.width * pixelSize; // at least a line | |
6d6f0db0 SR |
1893 | if (this._sock.rQwait("RAW", this._FBU.bytes)) { return false; } |
1894 | var cur_y = this._FBU.y + (this._FBU.height - this._FBU.lines); | |
1895 | var curr_height = Math.min(this._FBU.lines, | |
5a5f5ada PO |
1896 | Math.floor(this._sock.rQlen() / (this._FBU.width * pixelSize))); |
1897 | var data = this._sock.get_rQ(); | |
1898 | var index = this._sock.get_rQi(); | |
1899 | if (this._fb_depth == 8) { | |
1900 | var pixels = this._FBU.width * curr_height | |
1901 | var newdata = new Uint8Array(pixels * 4); | |
1902 | var i; | |
1903 | for (i = 0;i < pixels;i++) { | |
1904 | newdata[i * 4 + 0] = ((data[index + i] >> 0) & 0x3) * 255 / 3; | |
1905 | newdata[i * 4 + 1] = ((data[index + i] >> 2) & 0x3) * 255 / 3; | |
1906 | newdata[i * 4 + 2] = ((data[index + i] >> 4) & 0x3) * 255 / 3; | |
1907 | newdata[i * 4 + 4] = 0; | |
1908 | } | |
1909 | data = newdata; | |
1910 | index = 0; | |
1911 | } | |
6d6f0db0 | 1912 | this._display.blitImage(this._FBU.x, cur_y, this._FBU.width, |
5a5f5ada PO |
1913 | curr_height, data, index); |
1914 | this._sock.rQskipBytes(this._FBU.width * curr_height * pixelSize); | |
6d6f0db0 SR |
1915 | this._FBU.lines -= curr_height; |
1916 | ||
1917 | if (this._FBU.lines > 0) { | |
5a5f5ada | 1918 | this._FBU.bytes = this._FBU.width * pixelSize; // At least another line |
6d6f0db0 SR |
1919 | } else { |
1920 | this._FBU.rects--; | |
1921 | this._FBU.bytes = 0; | |
1922 | } | |
b1dee947 | 1923 | |
6d6f0db0 SR |
1924 | return true; |
1925 | }, | |
1926 | ||
1927 | COPYRECT: function () { | |
1928 | this._FBU.bytes = 4; | |
1929 | if (this._sock.rQwait("COPYRECT", 4)) { return false; } | |
1930 | this._display.copyImage(this._sock.rQshift16(), this._sock.rQshift16(), | |
1931 | this._FBU.x, this._FBU.y, this._FBU.width, | |
1932 | this._FBU.height); | |
1933 | ||
1934 | this._FBU.rects--; | |
1935 | this._FBU.bytes = 0; | |
1936 | return true; | |
1937 | }, | |
1938 | ||
1939 | RRE: function () { | |
1940 | var color; | |
1941 | if (this._FBU.subrects === 0) { | |
26586b9d PO |
1942 | this._FBU.bytes = 4 + 4; |
1943 | if (this._sock.rQwait("RRE", 4 + 4)) { return false; } | |
6d6f0db0 | 1944 | this._FBU.subrects = this._sock.rQshift32(); |
26586b9d | 1945 | color = this._sock.rQshiftBytes(4); // Background |
6d6f0db0 SR |
1946 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, color); |
1947 | } | |
b1dee947 | 1948 | |
26586b9d PO |
1949 | while (this._FBU.subrects > 0 && this._sock.rQlen() >= (4 + 8)) { |
1950 | color = this._sock.rQshiftBytes(4); | |
6d6f0db0 SR |
1951 | var x = this._sock.rQshift16(); |
1952 | var y = this._sock.rQshift16(); | |
1953 | var width = this._sock.rQshift16(); | |
1954 | var height = this._sock.rQshift16(); | |
1955 | this._display.fillRect(this._FBU.x + x, this._FBU.y + y, width, height, color); | |
1956 | this._FBU.subrects--; | |
1957 | } | |
f00193e0 | 1958 | |
6d6f0db0 SR |
1959 | if (this._FBU.subrects > 0) { |
1960 | var chunk = Math.min(this._rre_chunk_sz, this._FBU.subrects); | |
26586b9d | 1961 | this._FBU.bytes = (4 + 8) * chunk; |
6d6f0db0 | 1962 | } else { |
b1dee947 SR |
1963 | this._FBU.rects--; |
1964 | this._FBU.bytes = 0; | |
6d6f0db0 | 1965 | } |
b1dee947 | 1966 | |
6d6f0db0 SR |
1967 | return true; |
1968 | }, | |
b1dee947 | 1969 | |
6d6f0db0 SR |
1970 | HEXTILE: function () { |
1971 | var rQ = this._sock.get_rQ(); | |
1972 | var rQi = this._sock.get_rQi(); | |
b1dee947 | 1973 | |
6d6f0db0 SR |
1974 | if (this._FBU.tiles === 0) { |
1975 | this._FBU.tiles_x = Math.ceil(this._FBU.width / 16); | |
1976 | this._FBU.tiles_y = Math.ceil(this._FBU.height / 16); | |
1977 | this._FBU.total_tiles = this._FBU.tiles_x * this._FBU.tiles_y; | |
1978 | this._FBU.tiles = this._FBU.total_tiles; | |
1979 | } | |
b1dee947 | 1980 | |
6d6f0db0 SR |
1981 | while (this._FBU.tiles > 0) { |
1982 | this._FBU.bytes = 1; | |
1983 | if (this._sock.rQwait("HEXTILE subencoding", this._FBU.bytes)) { return false; } | |
1984 | var subencoding = rQ[rQi]; // Peek | |
1985 | if (subencoding > 30) { // Raw | |
1986 | this._fail("Unexpected server message", | |
1987 | "Illegal hextile subencoding: " + subencoding); | |
1988 | return false; | |
b1dee947 SR |
1989 | } |
1990 | ||
6d6f0db0 SR |
1991 | var subrects = 0; |
1992 | var curr_tile = this._FBU.total_tiles - this._FBU.tiles; | |
1993 | var tile_x = curr_tile % this._FBU.tiles_x; | |
1994 | var tile_y = Math.floor(curr_tile / this._FBU.tiles_x); | |
1995 | var x = this._FBU.x + tile_x * 16; | |
1996 | var y = this._FBU.y + tile_y * 16; | |
1997 | var w = Math.min(16, (this._FBU.x + this._FBU.width) - x); | |
1998 | var h = Math.min(16, (this._FBU.y + this._FBU.height) - y); | |
b1dee947 | 1999 | |
6d6f0db0 SR |
2000 | // Figure out how much we are expecting |
2001 | if (subencoding & 0x01) { // Raw | |
26586b9d | 2002 | this._FBU.bytes += w * h * 4; |
6d6f0db0 SR |
2003 | } else { |
2004 | if (subencoding & 0x02) { // Background | |
26586b9d | 2005 | this._FBU.bytes += 4; |
6d6f0db0 SR |
2006 | } |
2007 | if (subencoding & 0x04) { // Foreground | |
26586b9d | 2008 | this._FBU.bytes += 4; |
6d6f0db0 SR |
2009 | } |
2010 | if (subencoding & 0x08) { // AnySubrects | |
2011 | this._FBU.bytes++; // Since we aren't shifting it off | |
2012 | if (this._sock.rQwait("hextile subrects header", this._FBU.bytes)) { return false; } | |
2013 | subrects = rQ[rQi + this._FBU.bytes - 1]; // Peek | |
2014 | if (subencoding & 0x10) { // SubrectsColoured | |
26586b9d | 2015 | this._FBU.bytes += subrects * (4 + 2); |
6d6f0db0 SR |
2016 | } else { |
2017 | this._FBU.bytes += subrects * 2; | |
b1dee947 SR |
2018 | } |
2019 | } | |
6d6f0db0 | 2020 | } |
b1dee947 | 2021 | |
6d6f0db0 | 2022 | if (this._sock.rQwait("hextile", this._FBU.bytes)) { return false; } |
b1dee947 | 2023 | |
6d6f0db0 SR |
2024 | // We know the encoding and have a whole tile |
2025 | this._FBU.subencoding = rQ[rQi]; | |
2026 | rQi++; | |
2027 | if (this._FBU.subencoding === 0) { | |
2028 | if (this._FBU.lastsubencoding & 0x01) { | |
2029 | // Weird: ignore blanks are RAW | |
2030 | Log.Debug(" Ignoring blank after RAW"); | |
b1dee947 | 2031 | } else { |
6d6f0db0 SR |
2032 | this._display.fillRect(x, y, w, h, this._FBU.background); |
2033 | } | |
2034 | } else if (this._FBU.subencoding & 0x01) { // Raw | |
2035 | this._display.blitImage(x, y, w, h, rQ, rQi); | |
2036 | rQi += this._FBU.bytes - 1; | |
2037 | } else { | |
2038 | if (this._FBU.subencoding & 0x02) { // Background | |
26586b9d PO |
2039 | this._FBU.background = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2040 | rQi += 4; | |
6d6f0db0 SR |
2041 | } |
2042 | if (this._FBU.subencoding & 0x04) { // Foreground | |
26586b9d PO |
2043 | this._FBU.foreground = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2044 | rQi += 4; | |
6d6f0db0 | 2045 | } |
b1dee947 | 2046 | |
6d6f0db0 SR |
2047 | this._display.startTile(x, y, w, h, this._FBU.background); |
2048 | if (this._FBU.subencoding & 0x08) { // AnySubrects | |
2049 | subrects = rQ[rQi]; | |
2050 | rQi++; | |
b1dee947 | 2051 | |
6d6f0db0 SR |
2052 | for (var s = 0; s < subrects; s++) { |
2053 | var color; | |
2054 | if (this._FBU.subencoding & 0x10) { // SubrectsColoured | |
26586b9d PO |
2055 | color = [rQ[rQi], rQ[rQi + 1], rQ[rQi + 2], rQ[rQi + 3]]; |
2056 | rQi += 4; | |
6d6f0db0 SR |
2057 | } else { |
2058 | color = this._FBU.foreground; | |
2059 | } | |
2060 | var xy = rQ[rQi]; | |
2061 | rQi++; | |
2062 | var sx = (xy >> 4); | |
2063 | var sy = (xy & 0x0f); | |
a7a89626 | 2064 | |
6d6f0db0 SR |
2065 | var wh = rQ[rQi]; |
2066 | rQi++; | |
2067 | var sw = (wh >> 4) + 1; | |
2068 | var sh = (wh & 0x0f) + 1; | |
a7a89626 | 2069 | |
6d6f0db0 | 2070 | this._display.subTile(sx, sy, sw, sh, color); |
b1dee947 | 2071 | } |
a7a89626 | 2072 | } |
6d6f0db0 | 2073 | this._display.finishTile(); |
a7a89626 | 2074 | } |
6d6f0db0 SR |
2075 | this._sock.set_rQi(rQi); |
2076 | this._FBU.lastsubencoding = this._FBU.subencoding; | |
2077 | this._FBU.bytes = 0; | |
2078 | this._FBU.tiles--; | |
2079 | } | |
d065cad9 | 2080 | |
6d6f0db0 SR |
2081 | if (this._FBU.tiles === 0) { |
2082 | this._FBU.rects--; | |
2083 | } | |
b1dee947 | 2084 | |
6d6f0db0 SR |
2085 | return true; |
2086 | }, | |
b1dee947 | 2087 | |
3e8b26ab | 2088 | TIGHT: function () { |
6d6f0db0 SR |
2089 | this._FBU.bytes = 1; // compression-control byte |
2090 | if (this._sock.rQwait("TIGHT compression-control", this._FBU.bytes)) { return false; } | |
2091 | ||
2092 | var checksum = function (data) { | |
2093 | var sum = 0; | |
2094 | for (var i = 0; i < data.length; i++) { | |
2095 | sum += data[i]; | |
2096 | if (sum > 65536) sum -= 65536; | |
2097 | } | |
2098 | return sum; | |
2099 | }; | |
2100 | ||
2101 | var resetStreams = 0; | |
2102 | var streamId = -1; | |
2103 | var decompress = function (data, expected) { | |
2104 | for (var i = 0; i < 4; i++) { | |
2105 | if ((resetStreams >> i) & 1) { | |
2106 | this._FBU.zlibs[i].reset(); | |
2107 | Log.Info("Reset zlib stream " + i); | |
b1dee947 | 2108 | } |
6d6f0db0 | 2109 | } |
de84e098 | 2110 | |
6d6f0db0 SR |
2111 | //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0); |
2112 | var uncompressed = this._FBU.zlibs[streamId].inflate(data, true, expected); | |
2113 | /*if (uncompressed.status !== 0) { | |
2114 | Log.Error("Invalid data in zlib stream"); | |
2115 | }*/ | |
2116 | ||
2117 | //return uncompressed.data; | |
2118 | return uncompressed; | |
2119 | }.bind(this); | |
2120 | ||
2121 | var indexedToRGBX2Color = function (data, palette, width, height) { | |
2122 | // Convert indexed (palette based) image data to RGB | |
2123 | // TODO: reduce number of calculations inside loop | |
2124 | var dest = this._destBuff; | |
2125 | var w = Math.floor((width + 7) / 8); | |
2126 | var w1 = Math.floor(width / 8); | |
2127 | ||
2128 | /*for (var y = 0; y < height; y++) { | |
2129 | var b, x, dp, sp; | |
2130 | var yoffset = y * width; | |
2131 | var ybitoffset = y * w; | |
2132 | var xoffset, targetbyte; | |
2133 | for (x = 0; x < w1; x++) { | |
d1800d09 SR |
2134 | xoffset = yoffset + x * 8; |
2135 | targetbyte = data[ybitoffset + x]; | |
6d6f0db0 | 2136 | for (b = 7; b >= 0; b--) { |
d1800d09 SR |
2137 | dp = (xoffset + 7 - b) * 3; |
2138 | sp = (targetbyte >> b & 1) * 3; | |
2139 | dest[dp] = palette[sp]; | |
2140 | dest[dp + 1] = palette[sp + 1]; | |
2141 | dest[dp + 2] = palette[sp + 2]; | |
2142 | } | |
6d6f0db0 SR |
2143 | } |
2144 | ||
2145 | xoffset = yoffset + x * 8; | |
2146 | targetbyte = data[ybitoffset + x]; | |
2147 | for (b = 7; b >= 8 - width % 8; b--) { | |
2148 | dp = (xoffset + 7 - b) * 3; | |
2149 | sp = (targetbyte >> b & 1) * 3; | |
2150 | dest[dp] = palette[sp]; | |
2151 | dest[dp + 1] = palette[sp + 1]; | |
2152 | dest[dp + 2] = palette[sp + 2]; | |
2153 | } | |
2154 | }*/ | |
d1800d09 | 2155 | |
6d6f0db0 SR |
2156 | for (var y = 0; y < height; y++) { |
2157 | var b, x, dp, sp; | |
2158 | for (x = 0; x < w1; x++) { | |
2159 | for (b = 7; b >= 0; b--) { | |
d1800d09 SR |
2160 | dp = (y * width + x * 8 + 7 - b) * 4; |
2161 | sp = (data[y * w + x] >> b & 1) * 3; | |
2162 | dest[dp] = palette[sp]; | |
2163 | dest[dp + 1] = palette[sp + 1]; | |
2164 | dest[dp + 2] = palette[sp + 2]; | |
2165 | dest[dp + 3] = 255; | |
e16ad2fd JM |
2166 | } |
2167 | } | |
b1dee947 | 2168 | |
6d6f0db0 SR |
2169 | for (b = 7; b >= 8 - width % 8; b--) { |
2170 | dp = (y * width + x * 8 + 7 - b) * 4; | |
2171 | sp = (data[y * w + x] >> b & 1) * 3; | |
2172 | dest[dp] = palette[sp]; | |
2173 | dest[dp + 1] = palette[sp + 1]; | |
2174 | dest[dp + 2] = palette[sp + 2]; | |
2175 | dest[dp + 3] = 255; | |
d1800d09 | 2176 | } |
6d6f0db0 | 2177 | } |
d1800d09 | 2178 | |
6d6f0db0 SR |
2179 | return dest; |
2180 | }.bind(this); | |
2181 | ||
2182 | var indexedToRGBX = function (data, palette, width, height) { | |
2183 | // Convert indexed (palette based) image data to RGB | |
2184 | var dest = this._destBuff; | |
2185 | var total = width * height * 4; | |
2186 | for (var i = 0, j = 0; i < total; i += 4, j++) { | |
2187 | var sp = data[j] * 3; | |
2188 | dest[i] = palette[sp]; | |
2189 | dest[i + 1] = palette[sp + 1]; | |
2190 | dest[i + 2] = palette[sp + 2]; | |
2191 | dest[i + 3] = 255; | |
2192 | } | |
2193 | ||
2194 | return dest; | |
2195 | }.bind(this); | |
2196 | ||
2197 | var rQi = this._sock.get_rQi(); | |
2198 | var rQ = this._sock.rQwhole(); | |
2199 | var cmode, data; | |
2200 | var cl_header, cl_data; | |
2201 | ||
2202 | var handlePalette = function () { | |
2203 | var numColors = rQ[rQi + 2] + 1; | |
26586b9d | 2204 | var paletteSize = numColors * 3; |
6d6f0db0 SR |
2205 | this._FBU.bytes += paletteSize; |
2206 | if (this._sock.rQwait("TIGHT palette " + cmode, this._FBU.bytes)) { return false; } | |
2207 | ||
2208 | var bpp = (numColors <= 2) ? 1 : 8; | |
2209 | var rowSize = Math.floor((this._FBU.width * bpp + 7) / 8); | |
2210 | var raw = false; | |
2211 | if (rowSize * this._FBU.height < 12) { | |
2212 | raw = true; | |
2213 | cl_header = 0; | |
2214 | cl_data = rowSize * this._FBU.height; | |
2215 | //clength = [0, rowSize * this._FBU.height]; | |
2216 | } else { | |
2217 | // begin inline getTightCLength (returning two-item arrays is bad for performance with GC) | |
2218 | var cl_offset = rQi + 3 + paletteSize; | |
2219 | cl_header = 1; | |
2220 | cl_data = 0; | |
2221 | cl_data += rQ[cl_offset] & 0x7f; | |
2222 | if (rQ[cl_offset] & 0x80) { | |
2223 | cl_header++; | |
2224 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2225 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2226 | cl_header++; |
6d6f0db0 | 2227 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2228 | } |
e16ad2fd | 2229 | } |
6d6f0db0 SR |
2230 | // end inline getTightCLength |
2231 | } | |
b1dee947 | 2232 | |
6d6f0db0 SR |
2233 | this._FBU.bytes += cl_header + cl_data; |
2234 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2235 | |
6d6f0db0 SR |
2236 | // Shift ctl, filter id, num colors, palette entries, and clength off |
2237 | this._sock.rQskipBytes(3); | |
2238 | //var palette = this._sock.rQshiftBytes(paletteSize); | |
2239 | this._sock.rQshiftTo(this._paletteBuff, paletteSize); | |
2240 | this._sock.rQskipBytes(cl_header); | |
b1dee947 | 2241 | |
6d6f0db0 SR |
2242 | if (raw) { |
2243 | data = this._sock.rQshiftBytes(cl_data); | |
2244 | } else { | |
2245 | data = decompress(this._sock.rQshiftBytes(cl_data), rowSize * this._FBU.height); | |
2246 | } | |
b1dee947 | 2247 | |
6d6f0db0 SR |
2248 | // Convert indexed (palette based) image data to RGB |
2249 | var rgbx; | |
2250 | if (numColors == 2) { | |
2251 | rgbx = indexedToRGBX2Color(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2252 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2253 | } else { | |
2254 | rgbx = indexedToRGBX(data, this._paletteBuff, this._FBU.width, this._FBU.height); | |
2255 | this._display.blitRgbxImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, rgbx, 0, false); | |
2256 | } | |
b1dee947 | 2257 | |
b1dee947 | 2258 | |
6d6f0db0 SR |
2259 | return true; |
2260 | }.bind(this); | |
2261 | ||
2262 | var handleCopy = function () { | |
2263 | var raw = false; | |
26586b9d | 2264 | var uncompressedSize = this._FBU.width * this._FBU.height * 3; |
6d6f0db0 SR |
2265 | if (uncompressedSize < 12) { |
2266 | raw = true; | |
2267 | cl_header = 0; | |
2268 | cl_data = uncompressedSize; | |
2269 | } else { | |
2270 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2271 | var cl_offset = rQi + 1; | |
2272 | cl_header = 1; | |
2273 | cl_data = 0; | |
2274 | cl_data += rQ[cl_offset] & 0x7f; | |
2275 | if (rQ[cl_offset] & 0x80) { | |
2276 | cl_header++; | |
2277 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2278 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2279 | cl_header++; |
6d6f0db0 | 2280 | cl_data += rQ[cl_offset + 2] << 14; |
d1800d09 | 2281 | } |
b1dee947 | 2282 | } |
6d6f0db0 SR |
2283 | // end inline getTightCLength |
2284 | } | |
2285 | this._FBU.bytes = 1 + cl_header + cl_data; | |
2286 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
b1dee947 | 2287 | |
6d6f0db0 SR |
2288 | // Shift ctl, clength off |
2289 | this._sock.rQshiftBytes(1 + cl_header); | |
b1dee947 | 2290 | |
6d6f0db0 SR |
2291 | if (raw) { |
2292 | data = this._sock.rQshiftBytes(cl_data); | |
2293 | } else { | |
2294 | data = decompress(this._sock.rQshiftBytes(cl_data), uncompressedSize); | |
2295 | } | |
b1dee947 | 2296 | |
6d6f0db0 | 2297 | this._display.blitRgbImage(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, data, 0, false); |
b1dee947 | 2298 | |
6d6f0db0 SR |
2299 | return true; |
2300 | }.bind(this); | |
b1dee947 | 2301 | |
6d6f0db0 | 2302 | var ctl = this._sock.rQpeek8(); |
b1dee947 | 2303 | |
6d6f0db0 SR |
2304 | // Keep tight reset bits |
2305 | resetStreams = ctl & 0xF; | |
b1dee947 | 2306 | |
6d6f0db0 SR |
2307 | // Figure out filter |
2308 | ctl = ctl >> 4; | |
2309 | streamId = ctl & 0x3; | |
b1dee947 | 2310 | |
6d6f0db0 SR |
2311 | if (ctl === 0x08) cmode = "fill"; |
2312 | else if (ctl === 0x09) cmode = "jpeg"; | |
2313 | else if (ctl === 0x0A) cmode = "png"; | |
2314 | else if (ctl & 0x04) cmode = "filter"; | |
2315 | else if (ctl < 0x04) cmode = "copy"; | |
2316 | else return this._fail("Unexpected server message", | |
2317 | "Illegal tight compression received, " + | |
2318 | "ctl: " + ctl); | |
b1dee947 | 2319 | |
6d6f0db0 | 2320 | switch (cmode) { |
26586b9d | 2321 | // fill use depth because TPIXELs drop the padding byte |
6d6f0db0 | 2322 | case "fill": // TPIXEL |
26586b9d | 2323 | this._FBU.bytes += 3; |
6d6f0db0 SR |
2324 | break; |
2325 | case "jpeg": // max clength | |
2326 | this._FBU.bytes += 3; | |
2327 | break; | |
2328 | case "png": // max clength | |
2329 | this._FBU.bytes += 3; | |
2330 | break; | |
2331 | case "filter": // filter id + num colors if palette | |
2332 | this._FBU.bytes += 2; | |
2333 | break; | |
2334 | case "copy": | |
2335 | break; | |
2336 | } | |
d065cad9 | 2337 | |
6d6f0db0 | 2338 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } |
b1dee947 | 2339 | |
6d6f0db0 SR |
2340 | // Determine FBU.bytes |
2341 | switch (cmode) { | |
2342 | case "fill": | |
2343 | // skip ctl byte | |
2344 | 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); | |
2345 | this._sock.rQskipBytes(4); | |
2346 | break; | |
2347 | case "png": | |
2348 | case "jpeg": | |
2349 | // begin inline getTightCLength (returning two-item arrays is for peformance with GC) | |
2350 | var cl_offset = rQi + 1; | |
2351 | cl_header = 1; | |
2352 | cl_data = 0; | |
2353 | cl_data += rQ[cl_offset] & 0x7f; | |
2354 | if (rQ[cl_offset] & 0x80) { | |
2355 | cl_header++; | |
2356 | cl_data += (rQ[cl_offset + 1] & 0x7f) << 7; | |
2357 | if (rQ[cl_offset + 1] & 0x80) { | |
d1800d09 | 2358 | cl_header++; |
6d6f0db0 | 2359 | cl_data += rQ[cl_offset + 2] << 14; |
b1dee947 | 2360 | } |
6d6f0db0 SR |
2361 | } |
2362 | // end inline getTightCLength | |
2363 | this._FBU.bytes = 1 + cl_header + cl_data; // ctl + clength size + jpeg-data | |
2364 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
798340b9 | 2365 | |
6d6f0db0 SR |
2366 | // We have everything, render it |
2367 | this._sock.rQskipBytes(1 + cl_header); // shift off clt + compact length | |
2368 | data = this._sock.rQshiftBytes(cl_data); | |
2369 | this._display.imageRect(this._FBU.x, this._FBU.y, "image/" + cmode, data); | |
2370 | break; | |
2371 | case "filter": | |
2372 | var filterId = rQ[rQi + 1]; | |
2373 | if (filterId === 1) { | |
2374 | if (!handlePalette()) { return false; } | |
b0ec6509 | 2375 | } else { |
6d6f0db0 SR |
2376 | // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter |
2377 | // Filter 2, Gradient is valid but not use if jpeg is enabled | |
2378 | this._fail("Unexpected server message", | |
2379 | "Unsupported tight subencoding received, " + | |
2380 | "filter: " + filterId); | |
b0ec6509 | 2381 | } |
6d6f0db0 SR |
2382 | break; |
2383 | case "copy": | |
2384 | if (!handleCopy()) { return false; } | |
2385 | break; | |
2386 | } | |
b0ec6509 | 2387 | |
6d6f0db0 SR |
2388 | |
2389 | this._FBU.bytes = 0; | |
2390 | this._FBU.rects--; | |
2391 | ||
2392 | return true; | |
2393 | }, | |
2394 | ||
6d6f0db0 SR |
2395 | last_rect: function () { |
2396 | this._FBU.rects = 0; | |
2397 | return true; | |
2398 | }, | |
2399 | ||
6d6f0db0 SR |
2400 | ExtendedDesktopSize: function () { |
2401 | this._FBU.bytes = 1; | |
2402 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2403 | ||
2404 | this._supportsSetDesktopSize = true; | |
832be262 PO |
2405 | this._setCapability("resize", true); |
2406 | ||
6d6f0db0 SR |
2407 | var number_of_screens = this._sock.rQpeek8(); |
2408 | ||
2409 | this._FBU.bytes = 4 + (number_of_screens * 16); | |
2410 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } | |
2411 | ||
2412 | this._sock.rQskipBytes(1); // number-of-screens | |
2413 | this._sock.rQskipBytes(3); // padding | |
2414 | ||
2415 | for (var i = 0; i < number_of_screens; i += 1) { | |
2416 | // Save the id and flags of the first screen | |
2417 | if (i === 0) { | |
2418 | this._screen_id = this._sock.rQshiftBytes(4); // id | |
2419 | this._sock.rQskipBytes(2); // x-position | |
2420 | this._sock.rQskipBytes(2); // y-position | |
2421 | this._sock.rQskipBytes(2); // width | |
2422 | this._sock.rQskipBytes(2); // height | |
2423 | this._screen_flags = this._sock.rQshiftBytes(4); // flags | |
2424 | } else { | |
2425 | this._sock.rQskipBytes(16); | |
798340b9 | 2426 | } |
6d6f0db0 | 2427 | } |
b0ec6509 | 2428 | |
6d6f0db0 SR |
2429 | /* |
2430 | * The x-position indicates the reason for the change: | |
2431 | * | |
2432 | * 0 - server resized on its own | |
2433 | * 1 - this client requested the resize | |
2434 | * 2 - another client requested the resize | |
2435 | */ | |
b0ec6509 | 2436 | |
6d6f0db0 SR |
2437 | // We need to handle errors when we requested the resize. |
2438 | if (this._FBU.x === 1 && this._FBU.y !== 0) { | |
2439 | var msg = ""; | |
2440 | // The y-position indicates the status code from the server | |
2441 | switch (this._FBU.y) { | |
2442 | case 1: | |
2443 | msg = "Resize is administratively prohibited"; | |
2444 | break; | |
2445 | case 2: | |
2446 | msg = "Out of resources"; | |
2447 | break; | |
2448 | case 3: | |
2449 | msg = "Invalid screen layout"; | |
2450 | break; | |
2451 | default: | |
2452 | msg = "Unknown reason"; | |
2453 | break; | |
2454 | } | |
2455 | this._notification("Server did not accept the resize request: " | |
2456 | + msg, 'normal'); | |
910fd3af PO |
2457 | } else { |
2458 | this._resize(this._FBU.width, this._FBU.height); | |
6d6f0db0 | 2459 | } |
b1dee947 | 2460 | |
91d5c625 PO |
2461 | this._FBU.bytes = 0; |
2462 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2463 | return true; |
2464 | }, | |
b1dee947 | 2465 | |
6d6f0db0 | 2466 | DesktopSize: function () { |
91d5c625 PO |
2467 | this._resize(this._FBU.width, this._FBU.height); |
2468 | this._FBU.bytes = 0; | |
2469 | this._FBU.rects -= 1; | |
6d6f0db0 SR |
2470 | return true; |
2471 | }, | |
8db09746 | 2472 | |
6d6f0db0 SR |
2473 | Cursor: function () { |
2474 | Log.Debug(">> set_cursor"); | |
2475 | var x = this._FBU.x; // hotspot-x | |
2476 | var y = this._FBU.y; // hotspot-y | |
2477 | var w = this._FBU.width; | |
2478 | var h = this._FBU.height; | |
8db09746 | 2479 | |
26586b9d | 2480 | var pixelslength = w * h * 4; |
6d6f0db0 | 2481 | var masklength = Math.floor((w + 7) / 8) * h; |
a7a89626 | 2482 | |
6d6f0db0 SR |
2483 | this._FBU.bytes = pixelslength + masklength; |
2484 | if (this._sock.rQwait("cursor encoding", this._FBU.bytes)) { return false; } | |
b1dee947 | 2485 | |
6d6f0db0 SR |
2486 | this._display.changeCursor(this._sock.rQshiftBytes(pixelslength), |
2487 | this._sock.rQshiftBytes(masklength), | |
2488 | x, y, w, h); | |
b1dee947 | 2489 | |
6d6f0db0 SR |
2490 | this._FBU.bytes = 0; |
2491 | this._FBU.rects--; | |
8f06673a | 2492 | |
6d6f0db0 SR |
2493 | Log.Debug("<< set_cursor"); |
2494 | return true; | |
2495 | }, | |
25e4928f | 2496 | |
6d6f0db0 SR |
2497 | QEMUExtendedKeyEvent: function () { |
2498 | this._FBU.rects--; | |
25e4928f | 2499 | |
2bf4cf5a PO |
2500 | // Old Safari doesn't support creating keyboard events |
2501 | try { | |
2502 | var keyboardEvent = document.createEvent("keyboardEvent"); | |
2503 | if (keyboardEvent.code !== undefined) { | |
2504 | this._qemuExtKeyEventSupported = true; | |
2505 | } | |
2506 | } catch (err) { | |
058be785 | 2507 | } |
6d6f0db0 | 2508 | }, |
6d6f0db0 | 2509 | }; |