projects / mirror_novnc.git / blame
| Commit | Line | Data |
|---|---|---|
| a7a89626 JM |
1 | /* |
| 2 | * noVNC: HTML5 VNC client | |
| d58f8b51 | 3 | * Copyright (C) 2012 Joel Martin |
| 406a8b4e | 4 | * Copyright (C) 2013 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 | ||
| b1dee947 | 13 | /*jslint white: false, browser: true */ |
| 0911173a | 14 | /*global window, Util, Display, Keyboard, Mouse, Websock, Websock_native, Base64, DES */ |
| a7a89626 | 15 | |
| b1dee947 | 16 | var RFB; |
| a7a89626 | 17 | |
| b1dee947 SR |
18 | (function () { |
| 19 | "use strict"; | |
| 20 | RFB = function (defaults) { | |
| 21 | if (!defaults) { | |
| 22 | defaults = {}; | |
| 23 | } | |
| 5210330a | 24 | |
| b1dee947 SR |
25 | this._rfb_host = ''; |
| 26 | this._rfb_port = 5900; | |
| 27 | this._rfb_password = ''; | |
| 28 | this._rfb_path = ''; | |
| 29 | ||
| 30 | this._rfb_state = 'disconnected'; | |
| 31 | this._rfb_version = 0; | |
| 32 | this._rfb_max_version = 3.8; | |
| 33 | this._rfb_auth_scheme = ''; | |
| 34 | ||
| 35 | this._rfb_tightvnc = false; | |
| 36 | this._rfb_xvp_ver = 0; | |
| 37 | ||
| 38 | // In preference order | |
| 39 | this._encodings = [ | |
| 798340b9 | 40 | ['COPYRECT', 0x01 ], |
| 41 | ['TIGHT', 0x07 ], | |
| 42 | ['TIGHT_PNG', -260 ], | |
| 43 | ['HEXTILE', 0x05 ], | |
| 44 | ['RRE', 0x02 ], | |
| 45 | ['RAW', 0x00 ], | |
| 46 | ['DesktopSize', -223 ], | |
| 47 | ['Cursor', -239 ], | |
| b1dee947 SR |
48 | |
| 49 | // Psuedo-encoding settings | |
| 798340b9 | 50 | //['JPEG_quality_lo', -32 ], |
| 51 | ['JPEG_quality_med', -26 ], | |
| 52 | //['JPEG_quality_hi', -23 ], | |
| 53 | //['compress_lo', -255 ], | |
| 54 | ['compress_hi', -247 ], | |
| 55 | ['last_rect', -224 ], | |
| 56 | ['xvp', -309 ], | |
| 57 | ['ExtendedDesktopSize', -308 ] | |
| b1dee947 SR |
58 | ]; |
| 59 | ||
| 60 | this._encHandlers = {}; | |
| 61 | this._encNames = {}; | |
| 62 | this._encStats = {}; | |
| 63 | ||
| 64 | this._sock = null; // Websock object | |
| 65 | this._display = null; // Display object | |
| 66 | this._keyboard = null; // Keyboard input handler object | |
| 67 | this._mouse = null; // Mouse input handler object | |
| 68 | this._sendTimer = null; // Send Queue check timer | |
| 69 | this._disconnTimer = null; // disconnection timer | |
| 70 | this._msgTimer = null; // queued handle_msg timer | |
| 71 | ||
| 72 | // Frame buffer update state | |
| 73 | this._FBU = { | |
| 74 | rects: 0, | |
| 75 | subrects: 0, // RRE | |
| 76 | lines: 0, // RAW | |
| 77 | tiles: 0, // HEXTILE | |
| 78 | bytes: 0, | |
| 79 | x: 0, | |
| 80 | y: 0, | |
| 81 | width: 0, | |
| 82 | height: 0, | |
| 83 | encoding: 0, | |
| 84 | subencoding: -1, | |
| 85 | background: null, | |
| 86 | zlib: [] // TIGHT zlib streams | |
| 87 | }; | |
| 5210330a | 88 | |
| b1dee947 SR |
89 | this._fb_Bpp = 4; |
| 90 | this._fb_depth = 3; | |
| 91 | this._fb_width = 0; | |
| 92 | this._fb_height = 0; | |
| 93 | this._fb_name = ""; | |
| 6c883653 | 94 | this._dest_buff = null; |
| b1dee947 SR |
95 | |
| 96 | this._rre_chunk_sz = 100; | |
| 97 | ||
| 98 | this._timing = { | |
| 99 | last_fbu: 0, | |
| 100 | fbu_total: 0, | |
| 101 | fbu_total_cnt: 0, | |
| 102 | full_fbu_total: 0, | |
| 103 | full_fbu_cnt: 0, | |
| 104 | ||
| 105 | fbu_rt_start: 0, | |
| 106 | fbu_rt_total: 0, | |
| 107 | fbu_rt_cnt: 0, | |
| 108 | pixels: 0 | |
| 109 | }; | |
| 110 | ||
| b0ec6509 | 111 | this._supportsSetDesktopSize = false; |
| 112 | this._screen_id = 0; | |
| 113 | this._screen_flags = 0; | |
| 114 | ||
| b1dee947 SR |
115 | // Mouse state |
| 116 | this._mouse_buttonMask = 0; | |
| 117 | this._mouse_arr = []; | |
| 118 | this._viewportDragging = false; | |
| 119 | this._viewportDragPos = {}; | |
| 120 | ||
| 121 | // set the default value on user-facing properties | |
| 122 | Util.set_defaults(this, defaults, { | |
| 123 | 'target': 'null', // VNC display rendering Canvas object | |
| 124 | 'focusContainer': document, // DOM element that captures keyboard input | |
| 125 | 'encrypt': false, // Use TLS/SSL/wss encryption | |
| 126 | 'true_color': true, // Request true color pixel data | |
| 127 | 'local_cursor': false, // Request locally rendered cursor | |
| 128 | 'shared': true, // Request shared mode | |
| 129 | 'view_only': false, // Disable client mouse/keyboard | |
| 130 | 'xvp_password_sep': '@', // Separator for XVP password fields | |
| 131 | 'disconnectTimeout': 3, // Time (s) to wait for disconnection | |
| 132 | 'wsProtocols': ['binary', 'base64'], // Protocols to use in the WebSocket connection | |
| 133 | 'repeaterID': '', // [UltraVNC] RepeaterID to connect to | |
| 134 | 'viewportDrag': false, // Move the viewport on mouse drags | |
| 135 | ||
| 136 | // Callback functions | |
| 137 | 'onUpdateState': function () { }, // onUpdateState(rfb, state, oldstate, statusMsg): state update/change | |
| 138 | 'onPasswordRequired': function () { }, // onPasswordRequired(rfb): VNC password is required | |
| 139 | 'onClipboard': function () { }, // onClipboard(rfb, text): RFB clipboard contents received | |
| 140 | 'onBell': function () { }, // onBell(rfb): RFB Bell message received | |
| 141 | 'onFBUReceive': function () { }, // onFBUReceive(rfb, fbu): RFB FBU received but not yet processed | |
| 142 | 'onFBUComplete': function () { }, // onFBUComplete(rfb, fbu): RFB FBU received and processed | |
| 143 | 'onFBResize': function () { }, // onFBResize(rfb, width, height): frame buffer resized | |
| 144 | 'onDesktopName': function () { }, // onDesktopName(rfb, name): desktop name received | |
| 145 | 'onXvpInit': function () { }, // onXvpInit(version): XVP extensions active for this connection | |
| 146 | }); | |
| 147 | ||
| 148 | // main setup | |
| 149 | Util.Debug(">> RFB.constructor"); | |
| 150 | ||
| 151 | // populate encHandlers with bound versions | |
| 152 | Object.keys(RFB.encodingHandlers).forEach(function (encName) { | |
| 153 | this._encHandlers[encName] = RFB.encodingHandlers[encName].bind(this); | |
| 154 | }.bind(this)); | |
| 155 | ||
| 156 | // Create lookup tables based on encoding number | |
| 157 | for (var i = 0; i < this._encodings.length; i++) { | |
| 158 | this._encHandlers[this._encodings[i][1]] = this._encHandlers[this._encodings[i][0]]; | |
| 159 | this._encNames[this._encodings[i][1]] = this._encodings[i][0]; | |
| 160 | this._encStats[this._encodings[i][1]] = [0, 0]; | |
| b688a909 | 161 | } |
| b1dee947 | 162 | |
| d9fc1c7b SR |
163 | // NB: nothing that needs explicit teardown should be done |
| 164 | // before this point, since this can throw an exception | |
| b1dee947 SR |
165 | try { |
| 166 | this._display = new Display({target: this._target}); | |
| 167 | } catch (exc) { | |
| 168 | Util.Error("Display exception: " + exc); | |
| d9fc1c7b | 169 | throw exc; |
| d890e864 | 170 | } |
| b1dee947 SR |
171 | |
| 172 | this._keyboard = new Keyboard({target: this._focusContainer, | |
| 173 | onKeyPress: this._handleKeyPress.bind(this)}); | |
| 174 | ||
| 175 | this._mouse = new Mouse({target: this._target, | |
| 176 | onMouseButton: this._handleMouseButton.bind(this), | |
| 177 | onMouseMove: this._handleMouseMove.bind(this), | |
| 178 | notify: this._keyboard.sync.bind(this._keyboard)}); | |
| 179 | ||
| 180 | this._sock = new Websock(); | |
| 181 | this._sock.on('message', this._handle_message.bind(this)); | |
| 182 | this._sock.on('open', function () { | |
| 183 | if (this._rfb_state === 'connect') { | |
| 184 | this._updateState('ProtocolVersion', "Starting VNC handshake"); | |
| 185 | } else { | |
| 186 | this._fail("Got unexpected WebSocket connection"); | |
| 187 | } | |
| 188 | }.bind(this)); | |
| 189 | this._sock.on('close', function (e) { | |
| 190 | Util.Warn("WebSocket on-close event"); | |
| 191 | var msg = ""; | |
| 192 | if (e.code) { | |
| 193 | msg = " (code: " + e.code; | |
| 194 | if (e.reason) { | |
| 195 | msg += ", reason: " + e.reason; | |
| 196 | } | |
| 197 | msg += ")"; | |
| 198 | } | |
| 199 | if (this._rfb_state === 'disconnect') { | |
| 200 | this._updateState('disconnected', 'VNC disconnected' + msg); | |
| 201 | } else if (this._rfb_state === 'ProtocolVersion') { | |
| 202 | this._fail('Failed to connect to server' + msg); | |
| 203 | } else if (this._rfb_state in {'failed': 1, 'disconnected': 1}) { | |
| 204 | Util.Error("Received onclose while disconnected" + msg); | |
| 205 | } else { | |
| 206 | this._fail("Server disconnected" + msg); | |
| 207 | } | |
| 155d78b3 | 208 | this._sock.off('close'); |
| b1dee947 SR |
209 | }.bind(this)); |
| 210 | this._sock.on('error', function (e) { | |
| 211 | Util.Warn("WebSocket on-error event"); | |
| 212 | }); | |
| 213 | ||
| 214 | this._init_vars(); | |
| 215 | ||
| 216 | var rmode = this._display.get_render_mode(); | |
| 217 | if (Websock_native) { | |
| 218 | Util.Info("Using native WebSockets"); | |
| 219 | this._updateState('loaded', 'noVNC ready: native WebSockets, ' + rmode); | |
| 0d1e1b72 | 220 | } else { |
| b1dee947 SR |
221 | Util.Warn("Using web-socket-js bridge. Flash version: " + Util.Flash.version); |
| 222 | if (!Util.Flash || Util.Flash.version < 9) { | |
| d9fc1c7b SR |
223 | this._cleanupSocket('fatal'); |
| 224 | throw new Exception("WebSockets or <a href='http://get.adobe.com/flashplayer'>Adobe Flash</a> is required"); | |
| b1dee947 | 225 | } else if (document.location.href.substr(0, 7) === 'file://') { |
| d9fc1c7b SR |
226 | this._cleanupSocket('fatal'); |
| 227 | throw new Exception("'file://' URL is incompatible with Adobe Flash"); | |
| b1dee947 SR |
228 | } else { |
| 229 | this._updateState('loaded', 'noVNC ready: WebSockets emulation, ' + rmode); | |
| 230 | } | |
| a679a97d | 231 | } |
| 8db09746 | 232 | |
| b1dee947 SR |
233 | Util.Debug("<< RFB.constructor"); |
| 234 | }; | |
| a7a89626 | 235 | |
| b1dee947 SR |
236 | RFB.prototype = { |
| 237 | // Public methods | |
| 238 | connect: function (host, port, password, path) { | |
| 239 | this._rfb_host = host; | |
| 240 | this._rfb_port = port; | |
| 241 | this._rfb_password = (password !== undefined) ? password : ""; | |
| 242 | this._rfb_path = (path !== undefined) ? path : ""; | |
| a7a89626 | 243 | |
| b1dee947 SR |
244 | if (!this._rfb_host || !this._rfb_port) { |
| 245 | return this._fail("Must set host and port"); | |
| 246 | } | |
| e3efeb32 | 247 | |
| b1dee947 SR |
248 | this._updateState('connect'); |
| 249 | }, | |
| 250 | ||
| 251 | disconnect: function () { | |
| 252 | this._updateState('disconnect', 'Disconnecting'); | |
| 155d78b3 JS |
253 | this._sock.off('error'); |
| 254 | this._sock.off('message'); | |
| 255 | this._sock.off('open'); | |
| b1dee947 SR |
256 | }, |
| 257 | ||
| 258 | sendPassword: function (passwd) { | |
| 259 | this._rfb_password = passwd; | |
| 260 | this._rfb_state = 'Authentication'; | |
| 261 | setTimeout(this._init_msg.bind(this), 1); | |
| 262 | }, | |
| 263 | ||
| 264 | sendCtrlAltDel: function () { | |
| 265 | if (this._rfb_state !== 'normal' || this._view_only) { return false; } | |
| 266 | Util.Info("Sending Ctrl-Alt-Del"); | |
| 267 | ||
| 268 | var arr = []; | |
| 282834ca | 269 | arr = arr.concat(RFB.messages.keyEvent(XK_Control_L, 1)); |
| 270 | arr = arr.concat(RFB.messages.keyEvent(XK_Alt_L, 1)); | |
| 271 | arr = arr.concat(RFB.messages.keyEvent(XK_Delete, 1)); | |
| 272 | arr = arr.concat(RFB.messages.keyEvent(XK_Delete, 0)); | |
| 273 | arr = arr.concat(RFB.messages.keyEvent(XK_Alt_L, 0)); | |
| 274 | arr = arr.concat(RFB.messages.keyEvent(XK_Control_L, 0)); | |
| b1dee947 SR |
275 | this._sock.send(arr); |
| 276 | }, | |
| 277 | ||
| 278 | xvpOp: function (ver, op) { | |
| 279 | if (this._rfb_xvp_ver < ver) { return false; } | |
| 280 | Util.Info("Sending XVP operation " + op + " (version " + ver + ")"); | |
| 281 | this._sock.send_string("\xFA\x00" + String.fromCharCode(ver) + String.fromCharCode(op)); | |
| 282 | return true; | |
| 283 | }, | |
| 284 | ||
| 285 | xvpShutdown: function () { | |
| 286 | return this.xvpOp(1, 2); | |
| 287 | }, | |
| 288 | ||
| 289 | xvpReboot: function () { | |
| 290 | return this.xvpOp(1, 3); | |
| 291 | }, | |
| 292 | ||
| 293 | xvpReset: function () { | |
| 294 | return this.xvpOp(1, 4); | |
| 295 | }, | |
| 296 | ||
| 297 | // Send a key press. If 'down' is not specified then send a down key | |
| 298 | // followed by an up key. | |
| 299 | sendKey: function (code, down) { | |
| 300 | if (this._rfb_state !== "normal" || this._view_only) { return false; } | |
| 301 | var arr = []; | |
| 302 | if (typeof down !== 'undefined') { | |
| 303 | Util.Info("Sending key code (" + (down ? "down" : "up") + "): " + code); | |
| 304 | arr = arr.concat(RFB.messages.keyEvent(code, down ? 1 : 0)); | |
| 305 | } else { | |
| 306 | Util.Info("Sending key code (down + up): " + code); | |
| 307 | arr = arr.concat(RFB.messages.keyEvent(code, 1)); | |
| 308 | arr = arr.concat(RFB.messages.keyEvent(code, 0)); | |
| 309 | } | |
| 310 | this._sock.send(arr); | |
| 311 | }, | |
| 312 | ||
| 313 | clipboardPasteFrom: function (text) { | |
| 314 | if (this._rfb_state !== 'normal') { return; } | |
| 315 | this._sock.send(RFB.messages.clientCutText(text)); | |
| 316 | }, | |
| e3efeb32 | 317 | |
| b0ec6509 | 318 | setDesktopSize: function (width, height) { |
| 319 | if (this._rfb_state !== "normal") { return; } | |
| 320 | ||
| 321 | if (this._supportsSetDesktopSize) { | |
| 322 | ||
| 323 | var arr = [251]; // msg-type | |
| 324 | arr.push8(0); // padding | |
| 325 | arr.push16(width); // width | |
| 326 | arr.push16(height); // height | |
| 327 | ||
| 328 | arr.push8(1); // number-of-screens | |
| 329 | arr.push8(0); // padding | |
| 330 | ||
| 331 | // screen array | |
| 332 | arr.push32(this._screen_id); // id | |
| 333 | arr.push16(0); // x-position | |
| 334 | arr.push16(0); // y-position | |
| 335 | arr.push16(width); // width | |
| 336 | arr.push16(height); // height | |
| 337 | arr.push32(this._screen_flags); // flags | |
| 338 | ||
| 339 | this._sock.send(arr); | |
| 340 | } | |
| 341 | }, | |
| 342 | ||
| 343 | ||
| b1dee947 SR |
344 | // Private methods |
| 345 | ||
| 346 | _connect: function () { | |
| 347 | Util.Debug(">> RFB.connect"); | |
| 348 | ||
| 349 | var uri; | |
| 350 | if (typeof UsingSocketIO !== 'undefined') { | |
| 351 | uri = 'http'; | |
| 352 | } else { | |
| 353 | uri = this._encrypt ? 'wss' : 'ws'; | |
| 159ad55d | 354 | } |
| e3efeb32 | 355 | |
| b1dee947 SR |
356 | uri += '://' + this._rfb_host + ':' + this._rfb_port + '/' + this._rfb_path; |
| 357 | Util.Info("connecting to " + uri); | |
| a7a89626 | 358 | |
| 58ca1978 | 359 | this._sock.open(uri, this._wsProtocols); |
| a7a89626 | 360 | |
| b1dee947 SR |
361 | Util.Debug("<< RFB.connect"); |
| 362 | }, | |
| a7a89626 | 363 | |
| b1dee947 SR |
364 | _init_vars: function () { |
| 365 | // reset state | |
| 366 | this._sock.init(); | |
| a7a89626 | 367 | |
| b1dee947 SR |
368 | this._FBU.rects = 0; |
| 369 | this._FBU.subrects = 0; // RRE and HEXTILE | |
| 370 | this._FBU.lines = 0; // RAW | |
| 371 | this._FBU.tiles = 0; // HEXTILE | |
| 372 | this._FBU.zlibs = []; // TIGHT zlib encoders | |
| 373 | this._mouse_buttonMask = 0; | |
| 374 | this._mouse_arr = []; | |
| 375 | this._rfb_tightvnc = false; | |
| 8db09746 | 376 | |
| b1dee947 SR |
377 | // Clear the per connection encoding stats |
| 378 | var i; | |
| 379 | for (i = 0; i < this._encodings.length; i++) { | |
| 380 | this._encStats[this._encodings[i][1]][0] = 0; | |
| 381 | } | |
| a7a89626 | 382 | |
| b1dee947 | 383 | for (i = 0; i < 4; i++) { |
| 6940936f SR |
384 | //this._FBU.zlibs[i] = new TINF(); |
| 385 | //this._FBU.zlibs[i].init(); | |
| 386 | this._FBU.zlibs[i] = new inflator.Inflate(); | |
| b1dee947 SR |
387 | } |
| 388 | }, | |
| 389 | ||
| 390 | _print_stats: function () { | |
| 391 | Util.Info("Encoding stats for this connection:"); | |
| 392 | var i, s; | |
| 393 | for (i = 0; i < this._encodings.length; i++) { | |
| 394 | s = this._encStats[this._encodings[i][1]]; | |
| 395 | if (s[0] + s[1] > 0) { | |
| 396 | Util.Info(" " + this._encodings[i][0] + ": " + s[0] + " rects"); | |
| 397 | } | |
| 398 | } | |
| a7a89626 | 399 | |
| b1dee947 SR |
400 | Util.Info("Encoding stats since page load:"); |
| 401 | for (i = 0; i < this._encodings.length; i++) { | |
| 402 | s = this._encStats[this._encodings[i][1]]; | |
| 403 | Util.Info(" " + this._encodings[i][0] + ": " + s[1] + " rects"); | |
| 404 | } | |
| 405 | }, | |
| a7a89626 | 406 | |
| d9fc1c7b SR |
407 | _cleanupSocket: function (state) { |
| 408 | if (this._sendTimer) { | |
| 409 | clearInterval(this._sendTimer); | |
| 410 | this._sendTimer = null; | |
| 411 | } | |
| 412 | ||
| 413 | if (this._msgTimer) { | |
| 414 | clearInterval(this._msgTimer); | |
| 415 | this._msgTimer = null; | |
| 416 | } | |
| 417 | ||
| 418 | if (this._display && this._display.get_context()) { | |
| 419 | this._keyboard.ungrab(); | |
| 420 | this._mouse.ungrab(); | |
| 421 | if (state !== 'connect' && state !== 'loaded') { | |
| 422 | this._display.defaultCursor(); | |
| 423 | } | |
| 424 | if (Util.get_logging() !== 'debug' || state === 'loaded') { | |
| 425 | // Show noVNC logo on load and when disconnected, unless in | |
| 426 | // debug mode | |
| 427 | this._display.clear(); | |
| 428 | } | |
| 429 | } | |
| 430 | ||
| 431 | this._sock.close(); | |
| 432 | }, | |
| a7a89626 | 433 | |
| b1dee947 SR |
434 | /* |
| 435 | * Page states: | |
| 436 | * loaded - page load, equivalent to disconnected | |
| 437 | * disconnected - idle state | |
| 438 | * connect - starting to connect (to ProtocolVersion) | |
| 439 | * normal - connected | |
| 440 | * disconnect - starting to disconnect | |
| 441 | * failed - abnormal disconnect | |
| 442 | * fatal - failed to load page, or fatal error | |
| 443 | * | |
| 444 | * RFB protocol initialization states: | |
| 445 | * ProtocolVersion | |
| 446 | * Security | |
| 447 | * Authentication | |
| 448 | * password - waiting for password, not part of RFB | |
| 449 | * SecurityResult | |
| 450 | * ClientInitialization - not triggered by server message | |
| 451 | * ServerInitialization (to normal) | |
| 452 | */ | |
| 453 | _updateState: function (state, statusMsg) { | |
| 454 | var oldstate = this._rfb_state; | |
| 455 | ||
| 456 | if (state === oldstate) { | |
| 457 | // Already here, ignore | |
| 458 | Util.Debug("Already in state '" + state + "', ignoring"); | |
| 459 | } | |
| a679a97d | 460 | |
| b1dee947 SR |
461 | /* |
| 462 | * These are disconnected states. A previous connect may | |
| 463 | * asynchronously cause a connection so make sure we are closed. | |
| 464 | */ | |
| 465 | if (state in {'disconnected': 1, 'loaded': 1, 'connect': 1, | |
| 466 | 'disconnect': 1, 'failed': 1, 'fatal': 1}) { | |
| d9fc1c7b | 467 | this._cleanupSocket(state); |
| b1dee947 | 468 | } |
| a7a89626 | 469 | |
| b1dee947 SR |
470 | if (oldstate === 'fatal') { |
| 471 | Util.Error('Fatal error, cannot continue'); | |
| 472 | } | |
| 473 | ||
| 474 | var cmsg = typeof(statusMsg) !== 'undefined' ? (" Msg: " + statusMsg) : ""; | |
| 475 | var fullmsg = "New state '" + state + "', was '" + oldstate + "'." + cmsg; | |
| 476 | if (state === 'failed' || state === 'fatal') { | |
| 477 | Util.Error(cmsg); | |
| 4ed717ad | 478 | } else { |
| b1dee947 | 479 | Util.Warn(cmsg); |
| 4ed717ad | 480 | } |
| a5df24b4 | 481 | |
| b1dee947 SR |
482 | if (oldstate === 'failed' && state === 'disconnected') { |
| 483 | // do disconnect action, but stay in failed state | |
| 484 | this._rfb_state = 'failed'; | |
| 485 | } else { | |
| 486 | this._rfb_state = state; | |
| 487 | } | |
| 488 | ||
| 489 | if (this._disconnTimer && this._rfb_state !== 'disconnect') { | |
| 490 | Util.Debug("Clearing disconnect timer"); | |
| 491 | clearTimeout(this._disconnTimer); | |
| 492 | this._disconnTimer = null; | |
| e543525f | 493 | this._sock.off('close'); // make sure we don't get a double event |
| b1dee947 | 494 | } |
| 06a9ef0c | 495 | |
| b1dee947 SR |
496 | switch (state) { |
| 497 | case 'normal': | |
| 498 | if (oldstate === 'disconnected' || oldstate === 'failed') { | |
| 499 | Util.Error("Invalid transition from 'disconnected' or 'failed' to 'normal'"); | |
| 500 | } | |
| 501 | break; | |
| 502 | ||
| 503 | case 'connect': | |
| 504 | this._init_vars(); | |
| 505 | this._connect(); | |
| 506 | // WebSocket.onopen transitions to 'ProtocolVersion' | |
| 507 | break; | |
| 508 | ||
| 509 | case 'disconnect': | |
| 510 | this._disconnTimer = setTimeout(function () { | |
| 511 | this._fail("Disconnect timeout"); | |
| 512 | }.bind(this), this._disconnectTimeout * 1000); | |
| 513 | ||
| 514 | this._print_stats(); | |
| 515 | ||
| 516 | // WebSocket.onclose transitions to 'disconnected' | |
| 517 | break; | |
| 518 | ||
| 519 | case 'failed': | |
| 520 | if (oldstate === 'disconnected') { | |
| 521 | Util.Error("Invalid transition from 'disconnected' to 'failed'"); | |
| 522 | } else if (oldstate === 'normal') { | |
| 523 | Util.Error("Error while connected."); | |
| 524 | } else if (oldstate === 'init') { | |
| 525 | Util.Error("Error while initializing."); | |
| 526 | } | |
| 8db09746 | 527 | |
| b1dee947 SR |
528 | // Make sure we transition to disconnected |
| 529 | setTimeout(function () { | |
| 530 | this._updateState('disconnected'); | |
| 531 | }.bind(this), 50); | |
| a5df24b4 | 532 | |
| b1dee947 | 533 | break; |
| a5df24b4 | 534 | |
| b1dee947 SR |
535 | default: |
| 536 | // No state change action to take | |
| 537 | } | |
| a5df24b4 | 538 | |
| b1dee947 SR |
539 | if (oldstate === 'failed' && state === 'disconnected') { |
| 540 | this._onUpdateState(this, state, oldstate); | |
| 541 | } else { | |
| 542 | this._onUpdateState(this, state, oldstate, statusMsg); | |
| 543 | } | |
| 544 | }, | |
| a5df24b4 | 545 | |
| b1dee947 SR |
546 | _fail: function (msg) { |
| 547 | this._updateState('failed', msg); | |
| 548 | return false; | |
| 549 | }, | |
| 06a9ef0c | 550 | |
| b1dee947 SR |
551 | _handle_message: function () { |
| 552 | if (this._sock.rQlen() === 0) { | |
| 553 | Util.Warn("handle_message called on an empty receive queue"); | |
| 554 | return; | |
| 555 | } | |
| 8db09746 | 556 | |
| b1dee947 SR |
557 | switch (this._rfb_state) { |
| 558 | case 'disconnected': | |
| 559 | case 'failed': | |
| 560 | Util.Error("Got data while disconnected"); | |
| 561 | break; | |
| 562 | case 'normal': | |
| 563 | if (this._normal_msg() && this._sock.rQlen() > 0) { | |
| 564 | // true means we can continue processing | |
| 565 | // Give other events a chance to run | |
| 566 | if (this._msgTimer === null) { | |
| 567 | Util.Debug("More data to process, creating timer"); | |
| 568 | this._msgTimer = setTimeout(function () { | |
| 569 | this._msgTimer = null; | |
| 570 | this._handle_message(); | |
| 571 | }.bind(this), 10); | |
| 572 | } else { | |
| 573 | Util.Debug("More data to process, existing timer"); | |
| 574 | } | |
| 575 | } | |
| 576 | break; | |
| 577 | default: | |
| 578 | this._init_msg(); | |
| 579 | break; | |
| 580 | } | |
| 581 | }, | |
| 8db09746 | 582 | |
| b1dee947 SR |
583 | _checkEvents: function () { |
| 584 | if (this._rfb_state === 'normal' && !this._viewportDragging && this._mouse_arr.length > 0) { | |
| 585 | this._sock.send(this._mouse_arr); | |
| 586 | this._mouse_arr = []; | |
| 587 | } | |
| 588 | }, | |
| 8db09746 | 589 | |
| b1dee947 SR |
590 | _handleKeyPress: function (keysym, down) { |
| 591 | if (this._view_only) { return; } // View only, skip keyboard, events | |
| 592 | this._sock.send(RFB.messages.keyEvent(keysym, down)); | |
| 593 | }, | |
| 8db09746 | 594 | |
| b1dee947 SR |
595 | _handleMouseButton: function (x, y, down, bmask) { |
| 596 | if (down) { | |
| 597 | this._mouse_buttonMask |= bmask; | |
| 598 | } else { | |
| d02a99f0 | 599 | this._mouse_buttonMask ^= bmask; |
| b1dee947 | 600 | } |
| 8db09746 | 601 | |
| b1dee947 SR |
602 | if (this._viewportDrag) { |
| 603 | if (down && !this._viewportDragging) { | |
| 604 | this._viewportDragging = true; | |
| 605 | this._viewportDragPos = {'x': x, 'y': y}; | |
| 8db09746 | 606 | |
| b1dee947 SR |
607 | // Skip sending mouse events |
| 608 | return; | |
| 609 | } else { | |
| 610 | this._viewportDragging = false; | |
| 611 | } | |
| b50f3406 | 612 | } |
| 8db09746 | 613 | |
| b1dee947 SR |
614 | if (this._view_only) { return; } // View only, skip mouse events |
| 615 | ||
| 616 | this._mouse_arr = this._mouse_arr.concat( | |
| 617 | RFB.messages.pointerEvent(this._display.absX(x), this._display.absY(y), this._mouse_buttonMask)); | |
| 618 | this._sock.send(this._mouse_arr); | |
| 619 | this._mouse_arr = []; | |
| 620 | }, | |
| 621 | ||
| 622 | _handleMouseMove: function (x, y) { | |
| 623 | if (this._viewportDragging) { | |
| 624 | var deltaX = this._viewportDragPos.x - x; | |
| 625 | var deltaY = this._viewportDragPos.y - y; | |
| 626 | this._viewportDragPos = {'x': x, 'y': y}; | |
| 627 | ||
| b0ec6509 | 628 | this._display.viewportChangePos(deltaX, deltaY); |
| 8db09746 | 629 | |
| b1dee947 SR |
630 | // Skip sending mouse events |
| 631 | return; | |
| 632 | } | |
| 633 | ||
| 634 | if (this._view_only) { return; } // View only, skip mouse events | |
| 635 | ||
| 636 | this._mouse_arr = this._mouse_arr.concat( | |
| 637 | RFB.messages.pointerEvent(this._display.absX(x), this._display.absY(y), this._mouse_buttonMask)); | |
| 638 | ||
| 639 | this._checkEvents(); | |
| 640 | }, | |
| 641 | ||
| 642 | // Message Handlers | |
| 643 | ||
| 644 | _negotiate_protocol_version: function () { | |
| 645 | if (this._sock.rQlen() < 12) { | |
| 646 | return this._fail("Incomplete protocol version"); | |
| 647 | } | |
| 648 | ||
| 649 | var sversion = this._sock.rQshiftStr(12).substr(4, 7); | |
| 650 | Util.Info("Server ProtocolVersion: " + sversion); | |
| 651 | var is_repeater = 0; | |
| 652 | switch (sversion) { | |
| 653 | case "000.000": // UltraVNC repeater | |
| 654 | is_repeater = 1; | |
| 655 | break; | |
| 656 | case "003.003": | |
| 657 | case "003.006": // UltraVNC | |
| 658 | case "003.889": // Apple Remote Desktop | |
| 659 | this._rfb_version = 3.3; | |
| 660 | break; | |
| 661 | case "003.007": | |
| 662 | this._rfb_version = 3.7; | |
| 663 | break; | |
| 664 | case "003.008": | |
| 665 | case "004.000": // Intel AMT KVM | |
| 666 | case "004.001": // RealVNC 4.6 | |
| 667 | this._rfb_version = 3.8; | |
| 668 | break; | |
| 669 | default: | |
| 670 | return this._fail("Invalid server version " + sversion); | |
| 671 | } | |
| 672 | ||
| 673 | if (is_repeater) { | |
| 674 | var repeaterID = this._repeaterID; | |
| 675 | while (repeaterID.length < 250) { | |
| 676 | repeaterID += "\0"; | |
| 8db09746 | 677 | } |
| b1dee947 SR |
678 | this._sock.send_string(repeaterID); |
| 679 | return true; | |
| 8db09746 | 680 | } |
| b1dee947 SR |
681 | |
| 682 | if (this._rfb_version > this._rfb_max_version) { | |
| 683 | this._rfb_version = this._rfb_max_version; | |
| 8db09746 | 684 | } |
| b1dee947 SR |
685 | |
| 686 | // Send updates either at a rate of 1 update per 50ms, or | |
| 687 | // whatever slower rate the network can handle | |
| 688 | this._sendTimer = setInterval(this._sock.flush.bind(this._sock), 50); | |
| 689 | ||
| 690 | var cversion = "00" + parseInt(this._rfb_version, 10) + | |
| 691 | ".00" + ((this._rfb_version * 10) % 10); | |
| 692 | this._sock.send_string("RFB " + cversion + "\n"); | |
| 693 | this._updateState('Security', 'Sent ProtocolVersion: ' + cversion); | |
| 694 | }, | |
| 695 | ||
| 696 | _negotiate_security: function () { | |
| 697 | if (this._rfb_version >= 3.7) { | |
| 698 | // Server sends supported list, client decides | |
| 699 | var num_types = this._sock.rQshift8(); | |
| 700 | if (this._sock.rQwait("security type", num_types, 1)) { return false; } | |
| 701 | ||
| 702 | if (num_types === 0) { | |
| 703 | var strlen = this._sock.rQshift32(); | |
| 704 | var reason = this._sock.rQshiftStr(strlen); | |
| 705 | return this._fail("Security failure: " + reason); | |
| 1f758e87 | 706 | } |
| b1dee947 SR |
707 | |
| 708 | this._rfb_auth_scheme = 0; | |
| 709 | var types = this._sock.rQshiftBytes(num_types); | |
| 710 | Util.Debug("Server security types: " + types); | |
| 711 | for (var i = 0; i < types.length; i++) { | |
| 712 | if (types[i] > this._rfb_auth_scheme && (types[i] <= 16 || types[i] == 22)) { | |
| 713 | this._rfb_auth_scheme = types[i]; | |
| 714 | } | |
| 715 | } | |
| 716 | ||
| 717 | if (this._rfb_auth_scheme === 0) { | |
| 718 | return this._fail("Unsupported security types: " + types); | |
| 03ab2515 | 719 | } |
| b1dee947 SR |
720 | |
| 721 | this._sock.send([this._rfb_auth_scheme]); | |
| 722 | } else { | |
| 723 | // Server decides | |
| 724 | if (this._sock.rQwait("security scheme", 4)) { return false; } | |
| 725 | this._rfb_auth_scheme = this._sock.rQshift32(); | |
| 726 | } | |
| 727 | ||
| 728 | this._updateState('Authentication', 'Authenticating using scheme: ' + this._rfb_auth_scheme); | |
| 729 | return this._init_msg(); // jump to authentication | |
| 730 | }, | |
| 731 | ||
| 732 | // authentication | |
| 733 | _negotiate_xvp_auth: function () { | |
| 734 | var xvp_sep = this._xvp_password_sep; | |
| 735 | var xvp_auth = this._rfb_password.split(xvp_sep); | |
| 736 | if (xvp_auth.length < 3) { | |
| 737 | this._updateState('password', 'XVP credentials required (user' + xvp_sep + | |
| 738 | 'target' + xvp_sep + 'password) -- got only ' + this._rfb_password); | |
| 739 | this._onPasswordRequired(this); | |
| 740 | return false; | |
| 741 | } | |
| 742 | ||
| 743 | var xvp_auth_str = String.fromCharCode(xvp_auth[0].length) + | |
| 03ab2515 MS |
744 | String.fromCharCode(xvp_auth[1].length) + |
| 745 | xvp_auth[0] + | |
| 746 | xvp_auth[1]; | |
| b1dee947 SR |
747 | this._sock.send_string(xvp_auth_str); |
| 748 | this._rfb_password = xvp_auth.slice(2).join(xvp_sep); | |
| 749 | this._rfb_auth_scheme = 2; | |
| 750 | return this._negotiate_authentication(); | |
| 751 | }, | |
| 752 | ||
| 753 | _negotiate_std_vnc_auth: function () { | |
| 754 | if (this._rfb_password.length === 0) { | |
| 755 | // Notify via both callbacks since it's kind of | |
| 756 | // an RFB state change and a UI interface issue | |
| 757 | this._updateState('password', "Password Required"); | |
| 758 | this._onPasswordRequired(this); | |
| 759 | } | |
| 760 | ||
| 761 | if (this._sock.rQwait("auth challenge", 16)) { return false; } | |
| 762 | ||
| 763 | var challenge = this._sock.rQshiftBytes(16); | |
| 764 | var response = RFB.genDES(this._rfb_password, challenge); | |
| 765 | this._sock.send(response); | |
| 766 | this._updateState("SecurityResult"); | |
| 767 | return true; | |
| 768 | }, | |
| 769 | ||
| 770 | _negotiate_tight_tunnels: function (numTunnels) { | |
| 771 | var clientSupportedTunnelTypes = { | |
| 772 | 0: { vendor: 'TGHT', signature: 'NOTUNNEL' } | |
| 773 | }; | |
| 774 | var serverSupportedTunnelTypes = {}; | |
| 775 | // receive tunnel capabilities | |
| 776 | for (var i = 0; i < numTunnels; i++) { | |
| 777 | var cap_code = this._sock.rQshift32(); | |
| 778 | var cap_vendor = this._sock.rQshiftStr(4); | |
| 779 | var cap_signature = this._sock.rQshiftStr(8); | |
| 780 | serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature }; | |
| 781 | } | |
| 782 | ||
| 783 | // choose the notunnel type | |
| 784 | if (serverSupportedTunnelTypes[0]) { | |
| 785 | if (serverSupportedTunnelTypes[0].vendor != clientSupportedTunnelTypes[0].vendor || | |
| 786 | serverSupportedTunnelTypes[0].signature != clientSupportedTunnelTypes[0].signature) { | |
| 787 | return this._fail("Client's tunnel type had the incorrect vendor or signature"); | |
| 8db09746 | 788 | } |
| b1dee947 SR |
789 | this._sock.send([0, 0, 0, 0]); // use NOTUNNEL |
| 790 | return false; // wait until we receive the sub auth count to continue | |
| 791 | } else { | |
| 792 | return this._fail("Server wanted tunnels, but doesn't support the notunnel type"); | |
| 793 | } | |
| 794 | }, | |
| 95eb681b | 795 | |
| b1dee947 SR |
796 | _negotiate_tight_auth: function () { |
| 797 | if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation | |
| 798 | if (this._sock.rQwait("num tunnels", 4)) { return false; } | |
| 799 | var numTunnels = this._sock.rQshift32(); | |
| 800 | if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; } | |
| d86cc2d9 | 801 | |
| b1dee947 | 802 | this._rfb_tightvnc = true; |
| d86cc2d9 | 803 | |
| b1dee947 SR |
804 | if (numTunnels > 0) { |
| 805 | this._negotiate_tight_tunnels(numTunnels); | |
| 806 | return false; // wait until we receive the sub auth to continue | |
| 807 | } | |
| 808 | } | |
| 809 | ||
| 810 | // second pass, do the sub-auth negotiation | |
| 811 | if (this._sock.rQwait("sub auth count", 4)) { return false; } | |
| 812 | var subAuthCount = this._sock.rQshift32(); | |
| 813 | if (this._sock.rQwait("sub auth capabilities", 16 * subAuthCount, 4)) { return false; } | |
| 95eb681b | 814 | |
| b1dee947 SR |
815 | var clientSupportedTypes = { |
| 816 | 'STDVNOAUTH__': 1, | |
| 817 | 'STDVVNCAUTH_': 2 | |
| 818 | }; | |
| d86cc2d9 | 819 | |
| b1dee947 | 820 | var serverSupportedTypes = []; |
| d86cc2d9 | 821 | |
| b1dee947 SR |
822 | for (var i = 0; i < subAuthCount; i++) { |
| 823 | var capNum = this._sock.rQshift32(); | |
| 824 | var capabilities = this._sock.rQshiftStr(12); | |
| 825 | serverSupportedTypes.push(capabilities); | |
| 826 | } | |
| d86cc2d9 | 827 | |
| b1dee947 SR |
828 | for (var authType in clientSupportedTypes) { |
| 829 | if (serverSupportedTypes.indexOf(authType) != -1) { | |
| 830 | this._sock.send([0, 0, 0, clientSupportedTypes[authType]]); | |
| 831 | ||
| 832 | switch (authType) { | |
| 833 | case 'STDVNOAUTH__': // no auth | |
| 834 | this._updateState('SecurityResult'); | |
| 835 | return true; | |
| 836 | case 'STDVVNCAUTH_': // VNC auth | |
| 837 | this._rfb_auth_scheme = 2; | |
| 838 | return this._init_msg(); | |
| 839 | default: | |
| 840 | return this._fail("Unsupported tiny auth scheme: " + authType); | |
| 841 | } | |
| d86cc2d9 | 842 | } |
| b1dee947 | 843 | } |
| d86cc2d9 | 844 | |
| b1dee947 SR |
845 | this._fail("No supported sub-auth types!"); |
| 846 | }, | |
| 847 | ||
| 848 | _negotiate_authentication: function () { | |
| 849 | switch (this._rfb_auth_scheme) { | |
| 850 | case 0: // connection failed | |
| 851 | if (this._sock.rQwait("auth reason", 4)) { return false; } | |
| 852 | var strlen = this._sock.rQshift32(); | |
| 853 | var reason = this._sock.rQshiftStr(strlen); | |
| 854 | return this._fail("Auth failure: " + reason); | |
| 855 | ||
| 856 | case 1: // no auth | |
| 857 | if (this._rfb_version >= 3.8) { | |
| 858 | this._updateState('SecurityResult'); | |
| 859 | return true; | |
| 860 | } | |
| 861 | this._updateState('ClientInitialisation', "No auth required"); | |
| 862 | return this._init_msg(); | |
| 863 | ||
| 864 | case 22: // XVP auth | |
| 865 | return this._negotiate_xvp_auth(); | |
| 866 | ||
| 867 | case 2: // VNC authentication | |
| 868 | return this._negotiate_std_vnc_auth(); | |
| 869 | ||
| 870 | case 16: // TightVNC Security Type | |
| 871 | return this._negotiate_tight_auth(); | |
| 872 | ||
| 873 | default: | |
| 874 | return this._fail("Unsupported auth scheme: " + this._rfb_auth_scheme); | |
| 875 | } | |
| 876 | }, | |
| 877 | ||
| 878 | _handle_security_result: function () { | |
| 879 | if (this._sock.rQwait('VNC auth response ', 4)) { return false; } | |
| 880 | switch (this._sock.rQshift32()) { | |
| 881 | case 0: // OK | |
| 882 | this._updateState('ClientInitialisation', 'Authentication OK'); | |
| 883 | return this._init_msg(); | |
| 884 | case 1: // failed | |
| 885 | if (this._rfb_version >= 3.8) { | |
| 886 | var length = this._sock.rQshift32(); | |
| 887 | if (this._sock.rQwait("SecurityResult reason", length, 8)) { return false; } | |
| 888 | var reason = this._sock.rQshiftStr(length); | |
| 889 | return this._fail(reason); | |
| 890 | } else { | |
| 891 | return this._fail("Authentication failure"); | |
| d86cc2d9 | 892 | } |
| b1dee947 SR |
893 | return false; |
| 894 | case 2: | |
| 895 | return this._fail("Too many auth attempts"); | |
| 896 | } | |
| 897 | }, | |
| 898 | ||
| 899 | _negotiate_server_init: function () { | |
| 900 | if (this._sock.rQwait("server initialization", 24)) { return false; } | |
| 901 | ||
| 902 | /* Screen size */ | |
| 903 | this._fb_width = this._sock.rQshift16(); | |
| 904 | this._fb_height = this._sock.rQshift16(); | |
| 6c883653 | 905 | this._dest_buff = new Uint8Array(this._fb_width * this._fb_height * 4); |
| b1dee947 SR |
906 | |
| 907 | /* PIXEL_FORMAT */ | |
| 908 | var bpp = this._sock.rQshift8(); | |
| 909 | var depth = this._sock.rQshift8(); | |
| 910 | var big_endian = this._sock.rQshift8(); | |
| 911 | var true_color = this._sock.rQshift8(); | |
| 912 | ||
| 913 | var red_max = this._sock.rQshift16(); | |
| 914 | var green_max = this._sock.rQshift16(); | |
| 915 | var blue_max = this._sock.rQshift16(); | |
| 916 | var red_shift = this._sock.rQshift8(); | |
| 917 | var green_shift = this._sock.rQshift8(); | |
| 918 | var blue_shift = this._sock.rQshift8(); | |
| 919 | this._sock.rQskipBytes(3); // padding | |
| 920 | ||
| 921 | // NB(directxman12): we don't want to call any callbacks or print messages until | |
| 922 | // *after* we're past the point where we could backtrack | |
| 923 | ||
| 924 | /* Connection name/title */ | |
| 925 | var name_length = this._sock.rQshift32(); | |
| 926 | if (this._sock.rQwait('server init name', name_length, 24)) { return false; } | |
| 927 | this._fb_name = Util.decodeUTF8(this._sock.rQshiftStr(name_length)); | |
| 928 | ||
| 929 | if (this._rfb_tightvnc) { | |
| 930 | if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; } | |
| 931 | // In TightVNC mode, ServerInit message is extended | |
| 932 | var numServerMessages = this._sock.rQshift16(); | |
| 933 | var numClientMessages = this._sock.rQshift16(); | |
| 934 | var numEncodings = this._sock.rQshift16(); | |
| 935 | this._sock.rQskipBytes(2); // padding | |
| 936 | ||
| 937 | var totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16; | |
| 938 | if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; } | |
| 939 | ||
| 940 | var i; | |
| 941 | for (i = 0; i < numServerMessages; i++) { | |
| 942 | var srvMsg = this._sock.rQshiftStr(16); | |
| d86cc2d9 BR |
943 | } |
| 944 | ||
| b1dee947 SR |
945 | for (i = 0; i < numClientMessages; i++) { |
| 946 | var clientMsg = this._sock.rQshiftStr(16); | |
| 947 | } | |
| d86cc2d9 | 948 | |
| b1dee947 SR |
949 | for (i = 0; i < numEncodings; i++) { |
| 950 | var encoding = this._sock.rQshiftStr(16); | |
| 951 | } | |
| 952 | } | |
| 953 | ||
| 954 | // NB(directxman12): these are down here so that we don't run them multiple times | |
| 955 | // if we backtrack | |
| 956 | Util.Info("Screen: " + this._fb_width + "x" + this._fb_height + | |
| 957 | ", bpp: " + bpp + ", depth: " + depth + | |
| 958 | ", big_endian: " + big_endian + | |
| 959 | ", true_color: " + true_color + | |
| 960 | ", red_max: " + red_max + | |
| 961 | ", green_max: " + green_max + | |
| 962 | ", blue_max: " + blue_max + | |
| 963 | ", red_shift: " + red_shift + | |
| 964 | ", green_shift: " + green_shift + | |
| 965 | ", blue_shift: " + blue_shift); | |
| 966 | ||
| 967 | if (big_endian !== 0) { | |
| 968 | Util.Warn("Server native endian is not little endian"); | |
| 969 | } | |
| 970 | ||
| 971 | if (red_shift !== 16) { | |
| 972 | Util.Warn("Server native red-shift is not 16"); | |
| 973 | } | |
| 974 | ||
| 975 | if (blue_shift !== 0) { | |
| 976 | Util.Warn("Server native blue-shift is not 0"); | |
| 977 | } | |
| 978 | ||
| 979 | // we're past the point where we could backtrack, so it's safe to call this | |
| 980 | this._onDesktopName(this, this._fb_name); | |
| 981 | ||
| 982 | if (this._true_color && this._fb_name === "Intel(r) AMT KVM") { | |
| 983 | Util.Warn("Intel AMT KVM only supports 8/16 bit depths. Disabling true color"); | |
| 984 | this._true_color = false; | |
| 985 | } | |
| 986 | ||
| 987 | this._display.set_true_color(this._true_color); | |
| b1dee947 | 988 | this._display.resize(this._fb_width, this._fb_height); |
| b0ec6509 | 989 | this._onFBResize(this, this._fb_width, this._fb_height); |
| b1dee947 SR |
990 | this._keyboard.grab(); |
| 991 | this._mouse.grab(); | |
| 992 | ||
| 993 | if (this._true_color) { | |
| 994 | this._fb_Bpp = 4; | |
| 995 | this._fb_depth = 3; | |
| 996 | } else { | |
| 997 | this._fb_Bpp = 1; | |
| 998 | this._fb_depth = 1; | |
| 999 | } | |
| 1000 | ||
| 1001 | var response = RFB.messages.pixelFormat(this._fb_Bpp, this._fb_depth, this._true_color); | |
| 1002 | response = response.concat( | |
| 1003 | RFB.messages.clientEncodings(this._encodings, this._local_cursor, this._true_color)); | |
| 1004 | response = response.concat( | |
| 1005 | RFB.messages.fbUpdateRequests(this._display.getCleanDirtyReset(), | |
| 1006 | this._fb_width, this._fb_height)); | |
| 1007 | ||
| 1008 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
| 1009 | this._timing.pixels = 0; | |
| 1010 | this._sock.send(response); | |
| 1011 | ||
| 1012 | this._checkEvents(); | |
| 1013 | ||
| 1014 | if (this._encrypt) { | |
| 1015 | this._updateState('normal', 'Connected (encrypted) to: ' + this._fb_name); | |
| 1016 | } else { | |
| 1017 | this._updateState('normal', 'Connected (unencrypted) to: ' + this._fb_name); | |
| 1018 | } | |
| 1019 | }, | |
| 1020 | ||
| 1021 | _init_msg: function () { | |
| 1022 | switch (this._rfb_state) { | |
| 1023 | case 'ProtocolVersion': | |
| 1024 | return this._negotiate_protocol_version(); | |
| 1025 | ||
| 1026 | case 'Security': | |
| 1027 | return this._negotiate_security(); | |
| 1028 | ||
| 1029 | case 'Authentication': | |
| 1030 | return this._negotiate_authentication(); | |
| 1031 | ||
| 1032 | case 'SecurityResult': | |
| 1033 | return this._handle_security_result(); | |
| 1034 | ||
| 1035 | case 'ClientInitialisation': | |
| 1036 | this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation | |
| 1037 | this._updateState('ServerInitialisation', "Authentication OK"); | |
| 1038 | return true; | |
| 1039 | ||
| 1040 | case 'ServerInitialisation': | |
| 1041 | return this._negotiate_server_init(); | |
| 1042 | } | |
| 1043 | }, | |
| 1044 | ||
| 1045 | _handle_set_colour_map_msg: function () { | |
| 1046 | Util.Debug("SetColorMapEntries"); | |
| 1047 | this._sock.rQskip8(); // Padding | |
| 1048 | ||
| 1049 | var first_colour = this._sock.rQshift16(); | |
| 1050 | var num_colours = this._sock.rQshift16(); | |
| 1051 | if (this._sock.rQwait('SetColorMapEntries', num_colours * 6, 6)) { return false; } | |
| 1052 | ||
| 1053 | for (var c = 0; c < num_colours; c++) { | |
| 1054 | var red = parseInt(this._sock.rQshift16() / 256, 10); | |
| 1055 | var green = parseInt(this._sock.rQshift16() / 256, 10); | |
| 1056 | var blue = parseInt(this._sock.rQshift16() / 256, 10); | |
| 1057 | this._display.set_colourMap([blue, green, red], first_colour + c); | |
| 1058 | } | |
| 1059 | Util.Debug("colourMap: " + this._display.get_colourMap()); | |
| 1060 | Util.Info("Registered " + num_colours + " colourMap entries"); | |
| 1061 | ||
| 1062 | return true; | |
| 1063 | }, | |
| 1064 | ||
| 1065 | _handle_server_cut_text: function () { | |
| 1066 | Util.Debug("ServerCutText"); | |
| 1067 | if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; } | |
| 1068 | this._sock.rQskipBytes(3); // Padding | |
| 1069 | var length = this._sock.rQshift32(); | |
| 1070 | if (this._sock.rQwait("ServerCutText", length, 8)) { return false; } | |
| 1071 | ||
| 1072 | var text = this._sock.rQshiftStr(length); | |
| 1073 | this._onClipboard(this, text); | |
| 1074 | ||
| 1075 | return true; | |
| 1076 | }, | |
| 1077 | ||
| 1078 | _handle_xvp_msg: function () { | |
| 1079 | if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; } | |
| 1080 | this._sock.rQskip8(); // Padding | |
| 1081 | var xvp_ver = this._sock.rQshift8(); | |
| 1082 | var xvp_msg = this._sock.rQshift8(); | |
| 1083 | ||
| 1084 | switch (xvp_msg) { | |
| 1085 | case 0: // XVP_FAIL | |
| 1086 | this._updateState(this._rfb_state, "Operation Failed"); | |
| 1087 | break; | |
| 1088 | case 1: // XVP_INIT | |
| 1089 | this._rfb_xvp_ver = xvp_ver; | |
| 1090 | Util.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")"); | |
| 1091 | this._onXvpInit(this._rfb_xvp_ver); | |
| 1092 | break; | |
| 1093 | default: | |
| 1094 | this._fail("Disconnected: illegal server XVP message " + xvp_msg); | |
| 1095 | break; | |
| 1096 | } | |
| 1097 | ||
| 1098 | return true; | |
| 1099 | }, | |
| 1100 | ||
| 1101 | _normal_msg: function () { | |
| 1102 | var msg_type; | |
| 1103 | ||
| 1104 | if (this._FBU.rects > 0) { | |
| 1105 | msg_type = 0; | |
| 1106 | } else { | |
| 1107 | msg_type = this._sock.rQshift8(); | |
| 1108 | } | |
| 1109 | ||
| 1110 | switch (msg_type) { | |
| 1111 | case 0: // FramebufferUpdate | |
| 1112 | var ret = this._framebufferUpdate(); | |
| 1113 | if (ret) { | |
| 1114 | this._sock.send(RFB.messages.fbUpdateRequests(this._display.getCleanDirtyReset(), | |
| 1115 | this._fb_width, this._fb_height)); | |
| 1116 | } | |
| 1117 | return ret; | |
| 1118 | ||
| 1119 | case 1: // SetColorMapEntries | |
| 1120 | return this._handle_set_colour_map_msg(); | |
| 1121 | ||
| 1122 | case 2: // Bell | |
| 1123 | Util.Debug("Bell"); | |
| 1124 | this._onBell(this); | |
| 1125 | return true; | |
| 1126 | ||
| 1127 | case 3: // ServerCutText | |
| 1128 | return this._handle_server_cut_text(); | |
| 1129 | ||
| 1130 | case 250: // XVP | |
| 1131 | return this._handle_xvp_msg(); | |
| 1132 | ||
| 1133 | default: | |
| 1134 | this._fail("Disconnected: illegal server message type " + msg_type); | |
| 1135 | Util.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30)); | |
| 1136 | return true; | |
| 1137 | } | |
| 1138 | }, | |
| 1139 | ||
| 1140 | _framebufferUpdate: function () { | |
| 1141 | var ret = true; | |
| 1142 | var now; | |
| 1143 | ||
| 1144 | if (this._FBU.rects === 0) { | |
| 1145 | if (this._sock.rQwait("FBU header", 3, 1)) { return false; } | |
| 1146 | this._sock.rQskip8(); // Padding | |
| 1147 | this._FBU.rects = this._sock.rQshift16(); | |
| 1148 | this._FBU.bytes = 0; | |
| 1149 | this._timing.cur_fbu = 0; | |
| 1150 | if (this._timing.fbu_rt_start > 0) { | |
| 1151 | now = (new Date()).getTime(); | |
| 1152 | Util.Info("First FBU latency: " + (now - this._timing.fbu_rt_start)); | |
| 1153 | } | |
| 1154 | } | |
| 1155 | ||
| 1156 | while (this._FBU.rects > 0) { | |
| 1157 | if (this._rfb_state !== "normal") { return false; } | |
| 1158 | ||
| 1159 | if (this._sock.rQwait("FBU", this._FBU.bytes)) { return false; } | |
| 1160 | if (this._FBU.bytes === 0) { | |
| 1161 | if (this._sock.rQwait("rect header", 12)) { return false; } | |
| 1162 | /* New FramebufferUpdate */ | |
| 1163 | ||
| 1164 | var hdr = this._sock.rQshiftBytes(12); | |
| 1165 | this._FBU.x = (hdr[0] << 8) + hdr[1]; | |
| 1166 | this._FBU.y = (hdr[2] << 8) + hdr[3]; | |
| 1167 | this._FBU.width = (hdr[4] << 8) + hdr[5]; | |
| 1168 | this._FBU.height = (hdr[6] << 8) + hdr[7]; | |
| 1169 | this._FBU.encoding = parseInt((hdr[8] << 24) + (hdr[9] << 16) + | |
| 1170 | (hdr[10] << 8) + hdr[11], 10); | |
| 1171 | ||
| 1172 | this._onFBUReceive(this, | |
| 1173 | {'x': this._FBU.x, 'y': this._FBU.y, | |
| 1174 | 'width': this._FBU.width, 'height': this._FBU.height, | |
| 1175 | 'encoding': this._FBU.encoding, | |
| 1176 | 'encodingName': this._encNames[this._FBU.encoding]}); | |
| 1177 | ||
| 1178 | if (!this._encNames[this._FBU.encoding]) { | |
| 1179 | this._fail("Disconnected: unsupported encoding " + | |
| 1180 | this._FBU.encoding); | |
| 60440cee | 1181 | return false; |
| aa787069 | 1182 | } |
| 8db09746 | 1183 | } |
| ac99a1f7 | 1184 | |
| b1dee947 SR |
1185 | this._timing.last_fbu = (new Date()).getTime(); |
| 1186 | ||
| 6940936f SR |
1187 | var handler = this._encHandlers[this._FBU.encoding]; |
| 1188 | try { | |
| 1189 | //ret = this._encHandlers[this._FBU.encoding](); | |
| 1190 | ret = handler(); | |
| 1191 | } catch (ex) { | |
| 1192 | console.log("missed " + this._FBU.encoding + ": " + handler); | |
| 1193 | ret = this._encHandlers[this._FBU.encoding](); | |
| 1194 | } | |
| b1dee947 SR |
1195 | |
| 1196 | now = (new Date()).getTime(); | |
| 1197 | this._timing.cur_fbu += (now - this._timing.last_fbu); | |
| 1198 | ||
| 1199 | if (ret) { | |
| 1200 | this._encStats[this._FBU.encoding][0]++; | |
| 1201 | this._encStats[this._FBU.encoding][1]++; | |
| 1202 | this._timing.pixels += this._FBU.width * this._FBU.height; | |
| 1203 | } | |
| 1204 | ||
| 1205 | if (this._timing.pixels >= (this._fb_width * this._fb_height)) { | |
| 1206 | if ((this._FBU.width === this._fb_width && this._FBU.height === this._fb_height) || | |
| 1207 | this._timing.fbu_rt_start > 0) { | |
| 1208 | this._timing.full_fbu_total += this._timing.cur_fbu; | |
| 1209 | this._timing.full_fbu_cnt++; | |
| 1210 | Util.Info("Timing of full FBU, curr: " + | |
| 1211 | this._timing.cur_fbu + ", total: " + | |
| 1212 | this._timing.full_fbu_total + ", cnt: " + | |
| 1213 | this._timing.full_fbu_cnt + ", avg: " + | |
| 1214 | (this._timing.full_fbu_total / this._timing.full_fbu_cnt)); | |
| 1215 | } | |
| 1216 | ||
| 1217 | if (this._timing.fbu_rt_start > 0) { | |
| 1218 | var fbu_rt_diff = now - this._timing.fbu_rt_start; | |
| 1219 | this._timing.fbu_rt_total += fbu_rt_diff; | |
| 1220 | this._timing.fbu_rt_cnt++; | |
| 1221 | Util.Info("full FBU round-trip, cur: " + | |
| 1222 | fbu_rt_diff + ", total: " + | |
| 1223 | this._timing.fbu_rt_total + ", cnt: " + | |
| 1224 | this._timing.fbu_rt_cnt + ", avg: " + | |
| 1225 | (this._timing.fbu_rt_total / this._timing.fbu_rt_cnt)); | |
| 1226 | this._timing.fbu_rt_start = 0; | |
| 1227 | } | |
| 1228 | } | |
| 8db09746 | 1229 | |
| b1dee947 | 1230 | if (!ret) { return ret; } // need more data |
| d86cc2d9 | 1231 | } |
| d86cc2d9 | 1232 | |
| b1dee947 SR |
1233 | this._onFBUComplete(this, |
| 1234 | {'x': this._FBU.x, 'y': this._FBU.y, | |
| 1235 | 'width': this._FBU.width, 'height': this._FBU.height, | |
| 1236 | 'encoding': this._FBU.encoding, | |
| 1237 | 'encodingName': this._encNames[this._FBU.encoding]}); | |
| 8db09746 | 1238 | |
| b1dee947 SR |
1239 | return true; // We finished this FBU |
| 1240 | }, | |
| 1241 | }; | |
| 8db09746 | 1242 | |
| b1dee947 SR |
1243 | Util.make_properties(RFB, [ |
| 1244 | ['target', 'wo', 'dom'], // VNC display rendering Canvas object | |
| 1245 | ['focusContainer', 'wo', 'dom'], // DOM element that captures keyboard input | |
| 1246 | ['encrypt', 'rw', 'bool'], // Use TLS/SSL/wss encryption | |
| 1247 | ['true_color', 'rw', 'bool'], // Request true color pixel data | |
| 1248 | ['local_cursor', 'rw', 'bool'], // Request locally rendered cursor | |
| 1249 | ['shared', 'rw', 'bool'], // Request shared mode | |
| 1250 | ['view_only', 'rw', 'bool'], // Disable client mouse/keyboard | |
| 1251 | ['xvp_password_sep', 'rw', 'str'], // Separator for XVP password fields | |
| 1252 | ['disconnectTimeout', 'rw', 'int'], // Time (s) to wait for disconnection | |
| 1253 | ['wsProtocols', 'rw', 'arr'], // Protocols to use in the WebSocket connection | |
| 1254 | ['repeaterID', 'rw', 'str'], // [UltraVNC] RepeaterID to connect to | |
| 1255 | ['viewportDrag', 'rw', 'bool'], // Move the viewport on mouse drags | |
| 1256 | ||
| 1257 | // Callback functions | |
| 1258 | ['onUpdateState', 'rw', 'func'], // onUpdateState(rfb, state, oldstate, statusMsg): RFB state update/change | |
| 1259 | ['onPasswordRequired', 'rw', 'func'], // onPasswordRequired(rfb): VNC password is required | |
| 1260 | ['onClipboard', 'rw', 'func'], // onClipboard(rfb, text): RFB clipboard contents received | |
| 1261 | ['onBell', 'rw', 'func'], // onBell(rfb): RFB Bell message received | |
| 1262 | ['onFBUReceive', 'rw', 'func'], // onFBUReceive(rfb, fbu): RFB FBU received but not yet processed | |
| 1263 | ['onFBUComplete', 'rw', 'func'], // onFBUComplete(rfb, fbu): RFB FBU received and processed | |
| 1264 | ['onFBResize', 'rw', 'func'], // onFBResize(rfb, width, height): frame buffer resized | |
| 1265 | ['onDesktopName', 'rw', 'func'], // onDesktopName(rfb, name): desktop name received | |
| 1266 | ['onXvpInit', 'rw', 'func'], // onXvpInit(version): XVP extensions active for this connection | |
| 1267 | ]); | |
| a7a89626 | 1268 | |
| b1dee947 SR |
1269 | RFB.prototype.set_local_cursor = function (cursor) { |
| 1270 | if (!cursor || (cursor in {'0': 1, 'no': 1, 'false': 1})) { | |
| 1271 | this._local_cursor = false; | |
| b804b3e4 | 1272 | this._display.disableLocalCursor(); //Only show server-side cursor |
| b1dee947 SR |
1273 | } else { |
| 1274 | if (this._display.get_cursor_uri()) { | |
| 1275 | this._local_cursor = true; | |
| a7a89626 | 1276 | } else { |
| b1dee947 | 1277 | Util.Warn("Browser does not support local cursor"); |
| 8ce27ddb | 1278 | this._display.disableLocalCursor(); |
| a7a89626 JM |
1279 | } |
| 1280 | } | |
| b1dee947 SR |
1281 | }; |
| 1282 | ||
| 1283 | RFB.prototype.get_display = function () { return this._display; }; | |
| 1284 | RFB.prototype.get_keyboard = function () { return this._keyboard; }; | |
| 1285 | RFB.prototype.get_mouse = function () { return this._mouse; }; | |
| 1286 | ||
| 1287 | // Class Methods | |
| 1288 | RFB.messages = { | |
| 1289 | keyEvent: function (keysym, down) { | |
| 1290 | var arr = [4]; | |
| 1291 | arr.push8(down); | |
| 1292 | arr.push16(0); | |
| 1293 | arr.push32(keysym); | |
| 1294 | return arr; | |
| 1295 | }, | |
| 1296 | ||
| 1297 | pointerEvent: function (x, y, mask) { | |
| 1298 | var arr = [5]; // msg-type | |
| 1299 | arr.push8(mask); | |
| 1300 | arr.push16(x); | |
| 1301 | arr.push16(y); | |
| 1302 | return arr; | |
| 1303 | }, | |
| 1304 | ||
| 1305 | // TODO(directxman12): make this unicode compatible? | |
| 1306 | clientCutText: function (text) { | |
| 1307 | var arr = [6]; // msg-type | |
| 1308 | arr.push8(0); // padding | |
| 1309 | arr.push8(0); // padding | |
| 1310 | arr.push8(0); // padding | |
| 1311 | arr.push32(text.length); | |
| 1312 | var n = text.length; | |
| 1313 | for (var i = 0; i < n; i++) { | |
| 1314 | arr.push(text.charCodeAt(i)); | |
| 1315 | } | |
| a7a89626 | 1316 | |
| b1dee947 SR |
1317 | return arr; |
| 1318 | }, | |
| 1319 | ||
| 1320 | pixelFormat: function (bpp, depth, true_color) { | |
| 1321 | var arr = [0]; // msg-type | |
| 1322 | arr.push8(0); // padding | |
| 1323 | arr.push8(0); // padding | |
| 1324 | arr.push8(0); // padding | |
| 1325 | ||
| 1326 | arr.push8(bpp * 8); // bits-per-pixel | |
| 1327 | arr.push8(depth * 8); // depth | |
| 1328 | arr.push8(0); // little-endian | |
| 1329 | arr.push8(true_color ? 1 : 0); // true-color | |
| 1330 | ||
| 1331 | arr.push16(255); // red-max | |
| 1332 | arr.push16(255); // green-max | |
| 1333 | arr.push16(255); // blue-max | |
| 1334 | arr.push8(16); // red-shift | |
| 1335 | arr.push8(8); // green-shift | |
| 1336 | arr.push8(0); // blue-shift | |
| 1337 | ||
| 1338 | arr.push8(0); // padding | |
| 1339 | arr.push8(0); // padding | |
| 1340 | arr.push8(0); // padding | |
| 1341 | return arr; | |
| 1342 | }, | |
| 1343 | ||
| 1344 | clientEncodings: function (encodings, local_cursor, true_color) { | |
| 1345 | var i, encList = []; | |
| 1346 | ||
| 1347 | for (i = 0; i < encodings.length; i++) { | |
| 1348 | if (encodings[i][0] === "Cursor" && !local_cursor) { | |
| 1349 | Util.Debug("Skipping Cursor pseudo-encoding"); | |
| 1350 | } else if (encodings[i][0] === "TIGHT" && !true_color) { | |
| 1351 | // TODO: remove this when we have tight+non-true-color | |
| 1352 | Util.Warn("Skipping tight as it is only supported with true color"); | |
| 1353 | } else { | |
| 1354 | encList.push(encodings[i][1]); | |
| 1355 | } | |
| 1356 | } | |
| a7a89626 | 1357 | |
| b1dee947 SR |
1358 | var arr = [2]; // msg-type |
| 1359 | arr.push8(0); // padding | |
| a7a89626 | 1360 | |
| b1dee947 SR |
1361 | arr.push16(encList.length); // encoding count |
| 1362 | for (i = 0; i < encList.length; i++) { | |
| 1363 | arr.push32(encList[i]); | |
| 1364 | } | |
| a7a89626 | 1365 | |
| b1dee947 SR |
1366 | return arr; |
| 1367 | }, | |
| a679a97d | 1368 | |
| b1dee947 SR |
1369 | fbUpdateRequests: function (cleanDirty, fb_width, fb_height) { |
| 1370 | var arr = []; | |
| 1371 | ||
| 1372 | var cb = cleanDirty.cleanBox; | |
| 1373 | var w, h; | |
| 1374 | if (cb.w > 0 && cb.h > 0) { | |
| 1375 | w = typeof cb.w === "undefined" ? fb_width : cb.w; | |
| 1376 | h = typeof cb.h === "undefined" ? fb_height : cb.h; | |
| 1377 | // Request incremental for clean box | |
| 1378 | arr = arr.concat(RFB.messages.fbUpdateRequest(1, cb.x, cb.y, w, h)); | |
| a7a89626 | 1379 | } |
| b1dee947 SR |
1380 | |
| 1381 | for (var i = 0; i < cleanDirty.dirtyBoxes.length; i++) { | |
| 1382 | var db = cleanDirty.dirtyBoxes[i]; | |
| 1383 | // Force all (non-incremental) for dirty box | |
| 1384 | w = typeof db.w === "undefined" ? fb_width : db.w; | |
| 1385 | h = typeof db.h === "undefined" ? fb_height : db.h; | |
| 1386 | arr = arr.concat(RFB.messages.fbUpdateRequest(0, db.x, db.y, w, h)); | |
| 1387 | } | |
| 1388 | ||
| 1389 | return arr; | |
| 1390 | }, | |
| 1391 | ||
| 1392 | fbUpdateRequest: function (incremental, x, y, w, h) { | |
| 1393 | if (typeof(x) === "undefined") { x = 0; } | |
| 1394 | if (typeof(y) === "undefined") { y = 0; } | |
| 1395 | ||
| 1396 | var arr = [3]; // msg-type | |
| 1397 | arr.push8(incremental); | |
| 1398 | arr.push16(x); | |
| 1399 | arr.push16(y); | |
| 1400 | arr.push16(w); | |
| 1401 | arr.push16(h); | |
| 1402 | ||
| 1403 | return arr; | |
| a7a89626 | 1404 | } |
| b1dee947 SR |
1405 | }; |
| 1406 | ||
| 1407 | RFB.genDES = function (password, challenge) { | |
| 1408 | var passwd = []; | |
| 1409 | for (var i = 0; i < password.length; i++) { | |
| 1410 | passwd.push(password.charCodeAt(i)); | |
| a7a89626 | 1411 | } |
| b1dee947 SR |
1412 | return (new DES(passwd)).encrypt(challenge); |
| 1413 | }; | |
| 1414 | ||
| 1415 | RFB.extract_data_uri = function (arr) { | |
| 1416 | return ";base64," + Base64.encode(arr); | |
| 1417 | }; | |
| 1418 | ||
| 1419 | RFB.encodingHandlers = { | |
| 1420 | RAW: function () { | |
| 1421 | if (this._FBU.lines === 0) { | |
| 1422 | this._FBU.lines = this._FBU.height; | |
| a7a89626 | 1423 | } |
| a7a89626 | 1424 | |
| b1dee947 SR |
1425 | this._FBU.bytes = this._FBU.width * this._fb_Bpp; // at least a line |
| 1426 | if (this._sock.rQwait("RAW", this._FBU.bytes)) { return false; } | |
| 1427 | var cur_y = this._FBU.y + (this._FBU.height - this._FBU.lines); | |
| 1428 | var curr_height = Math.min(this._FBU.lines, | |
| 1429 | Math.floor(this._sock.rQlen() / (this._FBU.width * this._fb_Bpp))); | |
| 1430 | this._display.blitImage(this._FBU.x, cur_y, this._FBU.width, | |
| 1431 | curr_height, this._sock.get_rQ(), | |
| 1432 | this._sock.get_rQi()); | |
| 1433 | this._sock.rQskipBytes(this._FBU.width * curr_height * this._fb_Bpp); | |
| 1434 | this._FBU.lines -= curr_height; | |
| 1435 | ||
| 1436 | if (this._FBU.lines > 0) { | |
| 1437 | this._FBU.bytes = this._FBU.width * this._fb_Bpp; // At least another line | |
| a7a89626 | 1438 | } else { |
| b1dee947 SR |
1439 | this._FBU.rects--; |
| 1440 | this._FBU.bytes = 0; | |
| a7a89626 | 1441 | } |
| b1dee947 SR |
1442 | |
| 1443 | return true; | |
| 1444 | }, | |
| 1445 | ||
| 1446 | COPYRECT: function () { | |
| 1447 | this._FBU.bytes = 4; | |
| 1448 | if (this._sock.rQwait("COPYRECT", 4)) { return false; } | |
| 1449 | this._display.renderQ_push({ | |
| 1450 | 'type': 'copy', | |
| 1451 | 'old_x': this._sock.rQshift16(), | |
| 1452 | 'old_y': this._sock.rQshift16(), | |
| 1453 | 'x': this._FBU.x, | |
| 1454 | 'y': this._FBU.y, | |
| 1455 | 'width': this._FBU.width, | |
| 1456 | 'height': this._FBU.height | |
| 1457 | }); | |
| 1458 | this._FBU.rects--; | |
| 1459 | this._FBU.bytes = 0; | |
| 1460 | return true; | |
| 1461 | }, | |
| 1462 | ||
| 1463 | RRE: function () { | |
| 1464 | var color; | |
| 1465 | if (this._FBU.subrects === 0) { | |
| 1466 | this._FBU.bytes = 4 + this._fb_Bpp; | |
| 1467 | if (this._sock.rQwait("RRE", 4 + this._fb_Bpp)) { return false; } | |
| 1468 | this._FBU.subrects = this._sock.rQshift32(); | |
| 1469 | color = this._sock.rQshiftBytes(this._fb_Bpp); // Background | |
| 1470 | this._display.fillRect(this._FBU.x, this._FBU.y, this._FBU.width, this._FBU.height, color); | |
| 1471 | } | |
| 1472 | ||
| 1473 | while (this._FBU.subrects > 0 && this._sock.rQlen() >= (this._fb_Bpp + 8)) { | |
| 1474 | color = this._sock.rQshiftBytes(this._fb_Bpp); | |
| 1475 | var x = this._sock.rQshift16(); | |
| 1476 | var y = this._sock.rQshift16(); | |
| 1477 | var width = this._sock.rQshift16(); | |
| 1478 | var height = this._sock.rQshift16(); | |
| 1479 | this._display.fillRect(this._FBU.x + x, this._FBU.y + y, width, height, color); | |
| 1480 | this._FBU.subrects--; | |
| 1481 | } | |
| 1482 | ||
| 1483 | if (this._FBU.subrects > 0) { | |
| 1484 | var chunk = Math.min(this._rre_chunk_sz, this._FBU.subrects); | |
| 1485 | this._FBU.bytes = (this._fb_Bpp + 8) * chunk; | |
| 1486 | } else { | |
| 1487 | this._FBU.rects--; | |
| 1488 | this._FBU.bytes = 0; | |
| 1489 | } | |
| 1490 | ||
| 1491 | return true; | |
| 1492 | }, | |
| 1493 | ||
| 1494 | HEXTILE: function () { | |
| 1495 | var rQ = this._sock.get_rQ(); | |
| 1496 | var rQi = this._sock.get_rQi(); | |
| 1497 | ||
| 1498 | if (this._FBU.tiles === 0) { | |
| 1499 | this._FBU.tiles_x = Math.ceil(this._FBU.width / 16); | |
| 1500 | this._FBU.tiles_y = Math.ceil(this._FBU.height / 16); | |
| 1501 | this._FBU.total_tiles = this._FBU.tiles_x * this._FBU.tiles_y; | |
| 1502 | this._FBU.tiles = this._FBU.total_tiles; | |
| 1503 | } | |
| 1504 | ||
| 1505 | while (this._FBU.tiles > 0) { | |
| 1506 | this._FBU.bytes = 1; | |
| 1507 | if (this._sock.rQwait("HEXTILE subencoding", this._FBU.bytes)) { return false; } | |
| 1508 | var subencoding = rQ[rQi]; // Peek | |
| 1509 | if (subencoding > 30) { // Raw | |
| 1510 | this._fail("Disconnected: illegal hextile subencoding " + subencoding); | |
| 1511 | return false; | |
| 1512 | } | |
| 1513 | ||
| 1514 | var subrects = 0; | |
| 1515 | var curr_tile = this._FBU.total_tiles - this._FBU.tiles; | |
| 1516 | var tile_x = curr_tile % this._FBU.tiles_x; | |
| 1517 | var tile_y = Math.floor(curr_tile / this._FBU.tiles_x); | |
| 1518 | var x = this._FBU.x + tile_x * 16; | |
| 1519 | var y = this._FBU.y + tile_y * 16; | |
| 1520 | var w = Math.min(16, (this._FBU.x + this._FBU.width) - x); | |
| 1521 | var h = Math.min(16, (this._FBU.y + this._FBU.height) - y); | |
| 1522 | ||
| 1523 | // Figure out how much we are expecting | |
| 1524 | if (subencoding & 0x01) { // Raw | |
| 1525 | this._FBU.bytes += w * h * this._fb_Bpp; | |
| 1526 | } else { | |
| 1527 | if (subencoding & 0x02) { // Background | |
| 1528 | this._FBU.bytes += this._fb_Bpp; | |
| 1529 | } | |
| 1530 | if (subencoding & 0x04) { // Foreground | |
| 1531 | this._FBU.bytes += this._fb_Bpp; | |
| 1532 | } | |
| 1533 | if (subencoding & 0x08) { // AnySubrects | |
| 1534 | this._FBU.bytes++; // Since we aren't shifting it off | |
| 1535 | if (this._sock.rQwait("hextile subrects header", this._FBU.bytes)) { return false; } | |
| 1536 | subrects = rQ[rQi + this._FBU.bytes - 1]; // Peek | |
| 1537 | if (subencoding & 0x10) { // SubrectsColoured | |
| 1538 | this._FBU.bytes += subrects * (this._fb_Bpp + 2); | |
| 1539 | } else { | |
| 1540 | this._FBU.bytes += subrects * 2; | |
| 1541 | } | |
| 1542 | } | |
| 1543 | } | |
| 1544 | ||
| 1545 | if (this._sock.rQwait("hextile", this._FBU.bytes)) { return false; } | |
| 1546 | ||
| 1547 | // We know the encoding and have a whole tile | |
| 1548 | this._FBU.subencoding = rQ[rQi]; | |
| 1549 | rQi++; | |
| 1550 | if (this._FBU.subencoding === 0) { | |
| 1551 | if (this._FBU.lastsubencoding & 0x01) { | |
| 1552 | // Weird: ignore blanks are RAW | |
| 1553 | Util.Debug(" Ignoring blank after RAW"); | |
| a7a89626 | 1554 | } else { |
| df89129f | 1555 | this._display.fillRect(x, y, w, h, this._FBU.background); |
| b1dee947 SR |
1556 | } |
| 1557 | } else if (this._FBU.subencoding & 0x01) { // Raw | |
| 1558 | this._display.blitImage(x, y, w, h, rQ, rQi); | |
| 1559 | rQi += this._FBU.bytes - 1; | |
| 1560 | } else { | |
| 1561 | if (this._FBU.subencoding & 0x02) { // Background | |
| 1562 | this._FBU.background = rQ.slice(rQi, rQi + this._fb_Bpp); | |
| 1563 | rQi += this._fb_Bpp; | |
| a7a89626 | 1564 | } |
| b1dee947 SR |
1565 | if (this._FBU.subencoding & 0x04) { // Foreground |
| 1566 | this._FBU.foreground = rQ.slice(rQi, rQi + this._fb_Bpp); | |
| 1567 | rQi += this._fb_Bpp; | |
| 1568 | } | |
| 1569 | ||
| 1570 | this._display.startTile(x, y, w, h, this._FBU.background); | |
| 1571 | if (this._FBU.subencoding & 0x08) { // AnySubrects | |
| 1572 | subrects = rQ[rQi]; | |
| 1573 | rQi++; | |
| 1574 | ||
| 1575 | for (var s = 0; s < subrects; s++) { | |
| 1576 | var color; | |
| 1577 | if (this._FBU.subencoding & 0x10) { // SubrectsColoured | |
| 1578 | color = rQ.slice(rQi, rQi + this._fb_Bpp); | |
| 1579 | rQi += this._fb_Bpp; | |
| 1580 | } else { | |
| 1581 | color = this._FBU.foreground; | |
| 1582 | } | |
| 1583 | var xy = rQ[rQi]; | |
| 1584 | rQi++; | |
| 1585 | var sx = (xy >> 4); | |
| 1586 | var sy = (xy & 0x0f); | |
| a7a89626 | 1587 | |
| b1dee947 SR |
1588 | var wh = rQ[rQi]; |
| 1589 | rQi++; | |
| 1590 | var sw = (wh >> 4) + 1; | |
| 1591 | var sh = (wh & 0x0f) + 1; | |
| a7a89626 | 1592 | |
| b1dee947 SR |
1593 | this._display.subTile(sx, sy, sw, sh, color); |
| 1594 | } | |
| 1595 | } | |
| 1596 | this._display.finishTile(); | |
| a7a89626 | 1597 | } |
| b1dee947 SR |
1598 | this._sock.set_rQi(rQi); |
| 1599 | this._FBU.lastsubencoding = this._FBU.subencoding; | |
| 1600 | this._FBU.bytes = 0; | |
| 1601 | this._FBU.tiles--; | |
| a7a89626 | 1602 | } |
| d065cad9 | 1603 | |
| b1dee947 SR |
1604 | if (this._FBU.tiles === 0) { |
| 1605 | this._FBU.rects--; | |
| 1606 | } | |
| 1607 | ||
| 1608 | return true; | |
| 1609 | }, | |
| 1610 | ||
| 1611 | getTightCLength: function (arr) { | |
| 1612 | var header = 1, data = 0; | |
| 1613 | data += arr[0] & 0x7f; | |
| 1614 | if (arr[0] & 0x80) { | |
| 1615 | header++; | |
| 1616 | data += (arr[1] & 0x7f) << 7; | |
| 1617 | if (arr[1] & 0x80) { | |
| 1618 | header++; | |
| 1619 | data += arr[2] << 14; | |
| 1620 | } | |
| 1621 | } | |
| 1622 | return [header, data]; | |
| 1623 | }, | |
| 1624 | ||
| 1625 | display_tight: function (isTightPNG) { | |
| 1626 | if (this._fb_depth === 1) { | |
| 1627 | this._fail("Tight protocol handler only implements true color mode"); | |
| 1628 | } | |
| 9b75bcaa | 1629 | |
| b1dee947 SR |
1630 | this._FBU.bytes = 1; // compression-control byte |
| 1631 | if (this._sock.rQwait("TIGHT compression-control", this._FBU.bytes)) { return false; } | |
| 9b75bcaa | 1632 | |
| b1dee947 SR |
1633 | var checksum = function (data) { |
| 1634 | var sum = 0; | |
| 1635 | for (var i = 0; i < data.length; i++) { | |
| 1636 | sum += data[i]; | |
| 1637 | if (sum > 65536) sum -= 65536; | |
| 1638 | } | |
| 1639 | return sum; | |
| 1640 | }; | |
| 1641 | ||
| 1642 | var resetStreams = 0; | |
| 1643 | var streamId = -1; | |
| 1644 | var decompress = function (data) { | |
| 1645 | for (var i = 0; i < 4; i++) { | |
| 1646 | if ((resetStreams >> i) & 1) { | |
| 1647 | this._FBU.zlibs[i].reset(); | |
| 1648 | Util.Info("Reset zlib stream " + i); | |
| 1649 | } | |
| 1650 | } | |
| de84e098 | 1651 | |
| 6940936f SR |
1652 | //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0); |
| 1653 | var uncompressed = this._FBU.zlibs[streamId].inflate(data, true); | |
| 1654 | /*if (uncompressed.status !== 0) { | |
| b1dee947 | 1655 | Util.Error("Invalid data in zlib stream"); |
| 6940936f | 1656 | }*/ |
| de84e098 | 1657 | |
| 6940936f SR |
1658 | //return uncompressed.data; |
| 1659 | return uncompressed; | |
| b1dee947 SR |
1660 | }.bind(this); |
| 1661 | ||
| 1662 | var indexedToRGB = function (data, numColors, palette, width, height) { | |
| 1663 | // Convert indexed (palette based) image data to RGB | |
| 1664 | // TODO: reduce number of calculations inside loop | |
| 6c883653 | 1665 | var dest = this._dest_buff; |
| b1dee947 SR |
1666 | var x, y, dp, sp; |
| 1667 | if (numColors === 2) { | |
| 1668 | var w = Math.floor((width + 7) / 8); | |
| 1669 | var w1 = Math.floor(width / 8); | |
| 1670 | ||
| 1671 | for (y = 0; y < height; y++) { | |
| 1672 | var b; | |
| 1673 | for (x = 0; x < w1; x++) { | |
| 1674 | for (b = 7; b >= 0; b--) { | |
| 1675 | dp = (y * width + x * 8 + 7 - b) * 3; | |
| 1676 | sp = (data[y * w + x] >> b & 1) * 3; | |
| 1677 | dest[dp] = palette[sp]; | |
| 1678 | dest[dp + 1] = palette[sp + 1]; | |
| 1679 | dest[dp + 2] = palette[sp + 2]; | |
| 1680 | } | |
| 1681 | } | |
| d065cad9 | 1682 | |
| b1dee947 SR |
1683 | for (b = 7; b >= 8 - width % 8; b--) { |
| 1684 | dp = (y * width + x * 8 + 7 - b) * 3; | |
| 1685 | sp = (data[y * w + x] >> b & 1) * 3; | |
| 1686 | dest[dp] = palette[sp]; | |
| 1687 | dest[dp + 1] = palette[sp + 1]; | |
| 1688 | dest[dp + 2] = palette[sp + 2]; | |
| 1689 | } | |
| 1690 | } | |
| 1691 | } else { | |
| 6c883653 SR |
1692 | var total = width * height * 3; |
| 1693 | for (var i = 0, j = 0; i < total; i += 3, j++) { | |
| 1694 | sp = data[j] * 3; | |
| 1695 | dest[i] = palette[sp]; | |
| 1696 | dest[i + 1] = palette[sp + 1]; | |
| 1697 | dest[i + 2] = palette[sp + 2]; | |
| e16ad2fd JM |
1698 | } |
| 1699 | } | |
| b1dee947 SR |
1700 | |
| 1701 | return dest; | |
| 1702 | }.bind(this); | |
| 1703 | ||
| 1704 | var rQ = this._sock.get_rQ(); | |
| 1705 | var rQi = this._sock.get_rQi(); | |
| 1706 | var cmode, clength, data; | |
| 1707 | ||
| 1708 | var handlePalette = function () { | |
| 1709 | var numColors = rQ[rQi + 2] + 1; | |
| 1710 | var paletteSize = numColors * this._fb_depth; | |
| 1711 | this._FBU.bytes += paletteSize; | |
| 1712 | if (this._sock.rQwait("TIGHT palette " + cmode, this._FBU.bytes)) { return false; } | |
| 1713 | ||
| 1714 | var bpp = (numColors <= 2) ? 1 : 8; | |
| 1715 | var rowSize = Math.floor((this._FBU.width * bpp + 7) / 8); | |
| 1716 | var raw = false; | |
| 1717 | if (rowSize * this._FBU.height < 12) { | |
| 1718 | raw = true; | |
| 1719 | clength = [0, rowSize * this._FBU.height]; | |
| 1720 | } else { | |
| 1721 | clength = RFB.encodingHandlers.getTightCLength(this._sock.rQslice(3 + paletteSize, | |
| 1722 | 3 + paletteSize + 3)); | |
| e16ad2fd | 1723 | } |
| b1dee947 SR |
1724 | |
| 1725 | this._FBU.bytes += clength[0] + clength[1]; | |
| 1726 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
| 1727 | ||
| 1728 | // Shift ctl, filter id, num colors, palette entries, and clength off | |
| 1729 | this._sock.rQskipBytes(3); | |
| 1730 | var palette = this._sock.rQshiftBytes(paletteSize); | |
| 1731 | this._sock.rQskipBytes(clength[0]); | |
| 1732 | ||
| 1733 | if (raw) { | |
| 1734 | data = this._sock.rQshiftBytes(clength[1]); | |
| 1735 | } else { | |
| 1736 | data = decompress(this._sock.rQshiftBytes(clength[1])); | |
| 1737 | } | |
| 1738 | ||
| 1739 | // Convert indexed (palette based) image data to RGB | |
| 1740 | var rgb = indexedToRGB(data, numColors, palette, this._FBU.width, this._FBU.height); | |
| 1741 | ||
| 1742 | this._display.renderQ_push({ | |
| 1743 | 'type': 'blitRgb', | |
| 1744 | 'data': rgb, | |
| 1745 | 'x': this._FBU.x, | |
| 1746 | 'y': this._FBU.y, | |
| 1747 | 'width': this._FBU.width, | |
| 1748 | 'height': this._FBU.height | |
| 1749 | }); | |
| 1750 | ||
| 1751 | return true; | |
| 1752 | }.bind(this); | |
| 1753 | ||
| 1754 | var handleCopy = function () { | |
| 1755 | var raw = false; | |
| 1756 | var uncompressedSize = this._FBU.width * this._FBU.height * this._fb_depth; | |
| 1757 | if (uncompressedSize < 12) { | |
| 1758 | raw = true; | |
| 1759 | clength = [0, uncompressedSize]; | |
| 1760 | } else { | |
| 1761 | clength = RFB.encodingHandlers.getTightCLength(this._sock.rQslice(1, 4)); | |
| 1762 | } | |
| 1763 | this._FBU.bytes = 1 + clength[0] + clength[1]; | |
| 1764 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
| 1765 | ||
| 1766 | // Shift ctl, clength off | |
| 1767 | this._sock.rQshiftBytes(1 + clength[0]); | |
| 1768 | ||
| 1769 | if (raw) { | |
| 1770 | data = this._sock.rQshiftBytes(clength[1]); | |
| 1771 | } else { | |
| 1772 | data = decompress(this._sock.rQshiftBytes(clength[1])); | |
| e16ad2fd | 1773 | } |
| b1dee947 SR |
1774 | |
| 1775 | this._display.renderQ_push({ | |
| 1776 | 'type': 'blitRgb', | |
| 1777 | 'data': data, | |
| 1778 | 'x': this._FBU.x, | |
| 1779 | 'y': this._FBU.y, | |
| 1780 | 'width': this._FBU.width, | |
| 1781 | 'height': this._FBU.height | |
| 1782 | }); | |
| 1783 | ||
| 1784 | return true; | |
| 1785 | }.bind(this); | |
| 1786 | ||
| 1787 | var ctl = this._sock.rQpeek8(); | |
| 1788 | ||
| 1789 | // Keep tight reset bits | |
| 1790 | resetStreams = ctl & 0xF; | |
| 1791 | ||
| 1792 | // Figure out filter | |
| 1793 | ctl = ctl >> 4; | |
| 1794 | streamId = ctl & 0x3; | |
| 1795 | ||
| 1796 | if (ctl === 0x08) cmode = "fill"; | |
| 1797 | else if (ctl === 0x09) cmode = "jpeg"; | |
| 1798 | else if (ctl === 0x0A) cmode = "png"; | |
| 1799 | else if (ctl & 0x04) cmode = "filter"; | |
| 1800 | else if (ctl < 0x04) cmode = "copy"; | |
| 1801 | else return this._fail("Illegal tight compression received, ctl: " + ctl); | |
| 1802 | ||
| 1803 | if (isTightPNG && (cmode === "filter" || cmode === "copy")) { | |
| 1804 | return this._fail("filter/copy received in tightPNG mode"); | |
| e16ad2fd | 1805 | } |
| de84e098 | 1806 | |
| b1dee947 SR |
1807 | switch (cmode) { |
| 1808 | // fill use fb_depth because TPIXELs drop the padding byte | |
| 1809 | case "fill": // TPIXEL | |
| 1810 | this._FBU.bytes += this._fb_depth; | |
| 1811 | break; | |
| 1812 | case "jpeg": // max clength | |
| 1813 | this._FBU.bytes += 3; | |
| 1814 | break; | |
| 1815 | case "png": // max clength | |
| 1816 | this._FBU.bytes += 3; | |
| 1817 | break; | |
| 1818 | case "filter": // filter id + num colors if palette | |
| 1819 | this._FBU.bytes += 2; | |
| 1820 | break; | |
| 1821 | case "copy": | |
| 1822 | break; | |
| 1823 | } | |
| d065cad9 | 1824 | |
| b1dee947 SR |
1825 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } |
| 1826 | ||
| 1827 | // Determine FBU.bytes | |
| 1828 | switch (cmode) { | |
| 1829 | case "fill": | |
| 1830 | this._sock.rQskip8(); // shift off ctl | |
| 1831 | var color = this._sock.rQshiftBytes(this._fb_depth); | |
| 1832 | this._display.renderQ_push({ | |
| 1833 | 'type': 'fill', | |
| 1834 | 'x': this._FBU.x, | |
| 1835 | 'y': this._FBU.y, | |
| 1836 | 'width': this._FBU.width, | |
| 1837 | 'height': this._FBU.height, | |
| 1838 | 'color': [color[2], color[1], color[0]] | |
| 1839 | }); | |
| 1840 | break; | |
| 1841 | case "png": | |
| 1842 | case "jpeg": | |
| 1843 | clength = RFB.encodingHandlers.getTightCLength(this._sock.rQslice(1, 4)); | |
| 1844 | this._FBU.bytes = 1 + clength[0] + clength[1]; // ctl + clength size + jpeg-data | |
| 1845 | if (this._sock.rQwait("TIGHT " + cmode, this._FBU.bytes)) { return false; } | |
| 1846 | ||
| 1847 | // We have everything, render it | |
| 1848 | this._sock.rQskipBytes(1 + clength[0]); // shift off clt + compact length | |
| 1849 | var img = new Image(); | |
| 1850 | img.src = "data: image/" + cmode + | |
| 1851 | RFB.extract_data_uri(this._sock.rQshiftBytes(clength[1])); | |
| 1852 | this._display.renderQ_push({ | |
| 1853 | 'type': 'img', | |
| 1854 | 'img': img, | |
| 1855 | 'x': this._FBU.x, | |
| 1856 | 'y': this._FBU.y | |
| 1857 | }); | |
| 1858 | img = null; | |
| 1859 | break; | |
| 1860 | case "filter": | |
| 1861 | var filterId = rQ[rQi + 1]; | |
| 1862 | if (filterId === 1) { | |
| 1863 | if (!handlePalette()) { return false; } | |
| 1864 | } else { | |
| 1865 | // Filter 0, Copy could be valid here, but servers don't send it as an explicit filter | |
| 1866 | // Filter 2, Gradient is valid but not use if jpeg is enabled | |
| 1867 | // TODO(directxman12): why aren't we just calling '_fail' here | |
| 1868 | throw new Error("Unsupported tight subencoding received, filter: " + filterId); | |
| 1869 | } | |
| 1870 | break; | |
| 1871 | case "copy": | |
| 1872 | if (!handleCopy()) { return false; } | |
| 1873 | break; | |
| 1874 | } | |
| 5ca5e2d8 | 1875 | |
| de84e098 | 1876 | |
| b1dee947 SR |
1877 | this._FBU.bytes = 0; |
| 1878 | this._FBU.rects--; | |
| c514fd5e | 1879 | |
| b1dee947 SR |
1880 | return true; |
| 1881 | }, | |
| de84e098 | 1882 | |
| b1dee947 SR |
1883 | TIGHT: function () { return this._encHandlers.display_tight(false); }, |
| 1884 | TIGHT_PNG: function () { return this._encHandlers.display_tight(true); }, | |
| a7a89626 | 1885 | |
| b1dee947 SR |
1886 | last_rect: function () { |
| 1887 | this._FBU.rects = 0; | |
| 1888 | return true; | |
| 1889 | }, | |
| a7a89626 | 1890 | |
| 798340b9 | 1891 | handle_FB_resize: function () { |
| 1892 | this._fb_width = this._FBU.width; | |
| 1893 | this._fb_height = this._FBU.height; | |
| 6c883653 | 1894 | this._dest_buff = new Uint8Array(this._fb_width * this._fb_height * 4); |
| 798340b9 | 1895 | this._display.resize(this._fb_width, this._fb_height); |
| 1896 | this._onFBResize(this, this._fb_width, this._fb_height); | |
| 1897 | this._timing.fbu_rt_start = (new Date()).getTime(); | |
| 1898 | ||
| 1899 | this._FBU.bytes = 0; | |
| 1900 | this._FBU.rects -= 1; | |
| 1901 | return true; | |
| 1902 | }, | |
| 1903 | ||
| 1904 | ExtendedDesktopSize: function () { | |
| b0ec6509 | 1905 | this._FBU.bytes = 1; |
| 798340b9 | 1906 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } |
| b0ec6509 | 1907 | |
| 1908 | this._supportsSetDesktopSize = true; | |
| 1909 | var number_of_screens = this._sock.rQpeek8(); | |
| 1910 | ||
| 1911 | this._FBU.bytes = 4 + (number_of_screens * 16); | |
| 798340b9 | 1912 | if (this._sock.rQwait("ExtendedDesktopSize", this._FBU.bytes)) { return false; } |
| b0ec6509 | 1913 | |
| 1914 | this._sock.rQskipBytes(1); // number-of-screens | |
| 1915 | this._sock.rQskipBytes(3); // padding | |
| 1916 | ||
| 0442e153 | 1917 | for (var i = 0; i < number_of_screens; i += 1) { |
| b0ec6509 | 1918 | // Save the id and flags of the first screen |
| 0442e153 | 1919 | if (i === 0) { |
| b0ec6509 | 1920 | this._screen_id = this._sock.rQshiftBytes(4); // id |
| 1921 | this._sock.rQskipBytes(2); // x-position | |
| 1922 | this._sock.rQskipBytes(2); // y-position | |
| 1923 | this._sock.rQskipBytes(2); // width | |
| 1924 | this._sock.rQskipBytes(2); // height | |
| 1925 | this._screen_flags = this._sock.rQshiftBytes(4); // flags | |
| 1926 | } else { | |
| 1927 | this._sock.rQskipBytes(16); | |
| 1928 | } | |
| 1929 | } | |
| 1930 | ||
| 798340b9 | 1931 | /* |
| 1932 | * The x-position indicates the reason for the change: | |
| 1933 | * | |
| 1934 | * 0 - server resized on its own | |
| 1935 | * 1 - this client requested the resize | |
| 1936 | * 2 - another client requested the resize | |
| 1937 | */ | |
| b0ec6509 | 1938 | |
| 798340b9 | 1939 | // We need to handle errors when we requested the resize. |
| 0442e153 | 1940 | if (this._FBU.x === 1 && this._FBU.y !== 0) { |
| 798340b9 | 1941 | var msg = ""; |
| 1942 | // The y-position indicates the status code from the server | |
| 1943 | switch (this._FBU.y) { | |
| 1944 | case 1: | |
| 1945 | msg = "Resize is administratively prohibited"; | |
| 1946 | break; | |
| 1947 | case 2: | |
| 1948 | msg = "Out of resources"; | |
| 1949 | break; | |
| 1950 | case 3: | |
| 1951 | msg = "Invalid screen layout"; | |
| 1952 | break; | |
| 1953 | default: | |
| 1954 | msg = "Unknown reason"; | |
| 1955 | break; | |
| 1956 | } | |
| 1957 | Util.Info("Server did not accept the resize request: " + msg); | |
| 1958 | return true; | |
| 1959 | } | |
| b0ec6509 | 1960 | |
| 798340b9 | 1961 | this._encHandlers.handle_FB_resize(); |
| b0ec6509 | 1962 | return true; |
| 1963 | }, | |
| 1964 | ||
| b1dee947 | 1965 | DesktopSize: function () { |
| 798340b9 | 1966 | this._encHandlers.handle_FB_resize(); |
| b1dee947 SR |
1967 | return true; |
| 1968 | }, | |
| 1969 | ||
| 1970 | Cursor: function () { | |
| 1971 | Util.Debug(">> set_cursor"); | |
| 1972 | var x = this._FBU.x; // hotspot-x | |
| 1973 | var y = this._FBU.y; // hotspot-y | |
| 1974 | var w = this._FBU.width; | |
| 1975 | var h = this._FBU.height; | |
| 1976 | ||
| 1977 | var pixelslength = w * h * this._fb_Bpp; | |
| 1978 | var masklength = Math.floor((w + 7) / 8) * h; | |
| 8db09746 | 1979 | |
| b1dee947 SR |
1980 | this._FBU.bytes = pixelslength + masklength; |
| 1981 | if (this._sock.rQwait("cursor encoding", this._FBU.bytes)) { return false; } | |
| 8db09746 | 1982 | |
| b1dee947 SR |
1983 | this._display.changeCursor(this._sock.rQshiftBytes(pixelslength), |
| 1984 | this._sock.rQshiftBytes(masklength), | |
| 1985 | x, y, w, h); | |
| a7a89626 | 1986 | |
| b1dee947 SR |
1987 | this._FBU.bytes = 0; |
| 1988 | this._FBU.rects--; | |
| 1989 | ||
| 1990 | Util.Debug("<< set_cursor"); | |
| 1991 | return true; | |
| 1992 | }, | |
| 1993 | ||
| 1994 | JPEG_quality_lo: function () { | |
| 1995 | Util.Error("Server sent jpeg_quality pseudo-encoding"); | |
| 1996 | }, | |
| 1997 | ||
| 1998 | compress_lo: function () { | |
| 1999 | Util.Error("Server sent compress level pseudo-encoding"); | |
| 2000 | } | |
| 2001 | }; | |
| 2002 | })(); |