novnc
Version:
An HTML5 VNC client
1,019 lines (987 loc) • 163 kB
JavaScript
"use strict";
function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _int = require("./util/int.js");
var Log = _interopRequireWildcard(require("./util/logging.js"));
var _strings = require("./util/strings.js");
var _browser = require("./util/browser.js");
var _element = require("./util/element.js");
var _events = require("./util/events.js");
var _eventtarget = _interopRequireDefault(require("./util/eventtarget.js"));
var _display = _interopRequireDefault(require("./display.js"));
var _inflator = _interopRequireDefault(require("./inflator.js"));
var _deflator = _interopRequireDefault(require("./deflator.js"));
var _keyboard = _interopRequireDefault(require("./input/keyboard.js"));
var _gesturehandler = _interopRequireDefault(require("./input/gesturehandler.js"));
var _cursor = _interopRequireDefault(require("./util/cursor.js"));
var _websock = _interopRequireDefault(require("./websock.js"));
var _des = _interopRequireDefault(require("./des.js"));
var _keysym = _interopRequireDefault(require("./input/keysym.js"));
var _xtscancodes = _interopRequireDefault(require("./input/xtscancodes.js"));
var _encodings = require("./encodings.js");
var _mousebuttonmapper = require("./mousebuttonmapper.js");
var _raw = _interopRequireDefault(require("./decoders/raw.js"));
var _copyrect = _interopRequireDefault(require("./decoders/copyrect.js"));
var _rre = _interopRequireDefault(require("./decoders/rre.js"));
var _hextile = _interopRequireDefault(require("./decoders/hextile.js"));
var _tight = _interopRequireDefault(require("./decoders/tight.js"));
var _tightpng = _interopRequireDefault(require("./decoders/tightpng.js"));
var _udp = _interopRequireDefault(require("./decoders/udp.js"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _regeneratorRuntime() { "use strict"; /*! regenerator-runtime -- Copyright (c) 2014-present, Facebook, Inc. -- license (MIT): https://github.com/facebook/regenerator/blob/main/LICENSE */ _regeneratorRuntime = function _regeneratorRuntime() { return exports; }; var exports = {}, Op = Object.prototype, hasOwn = Op.hasOwnProperty, defineProperty = Object.defineProperty || function (obj, key, desc) { obj[key] = desc.value; }, $Symbol = "function" == typeof Symbol ? Symbol : {}, iteratorSymbol = $Symbol.iterator || "@@iterator", asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator", toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag"; function define(obj, key, value) { return Object.defineProperty(obj, key, { value: value, enumerable: !0, configurable: !0, writable: !0 }), obj[key]; } try { define({}, ""); } catch (err) { define = function define(obj, key, value) { return obj[key] = value; }; } function wrap(innerFn, outerFn, self, tryLocsList) { var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator, generator = Object.create(protoGenerator.prototype), context = new Context(tryLocsList || []); return defineProperty(generator, "_invoke", { value: makeInvokeMethod(innerFn, self, context) }), generator; } function tryCatch(fn, obj, arg) { try { return { type: "normal", arg: fn.call(obj, arg) }; } catch (err) { return { type: "throw", arg: err }; } } exports.wrap = wrap; var ContinueSentinel = {}; function Generator() {} function GeneratorFunction() {} function GeneratorFunctionPrototype() {} var IteratorPrototype = {}; define(IteratorPrototype, iteratorSymbol, function () { return this; }); var getProto = Object.getPrototypeOf, NativeIteratorPrototype = getProto && getProto(getProto(values([]))); NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol) && (IteratorPrototype = NativeIteratorPrototype); var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype); function defineIteratorMethods(prototype) { ["next", "throw", "return"].forEach(function (method) { define(prototype, method, function (arg) { return this._invoke(method, arg); }); }); } function AsyncIterator(generator, PromiseImpl) { function invoke(method, arg, resolve, reject) { var record = tryCatch(generator[method], generator, arg); if ("throw" !== record.type) { var result = record.arg, value = result.value; return value && "object" == _typeof(value) && hasOwn.call(value, "__await") ? PromiseImpl.resolve(value.__await).then(function (value) { invoke("next", value, resolve, reject); }, function (err) { invoke("throw", err, resolve, reject); }) : PromiseImpl.resolve(value).then(function (unwrapped) { result.value = unwrapped, resolve(result); }, function (error) { return invoke("throw", error, resolve, reject); }); } reject(record.arg); } var previousPromise; defineProperty(this, "_invoke", { value: function value(method, arg) { function callInvokeWithMethodAndArg() { return new PromiseImpl(function (resolve, reject) { invoke(method, arg, resolve, reject); }); } return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg(); } }); } function makeInvokeMethod(innerFn, self, context) { var state = "suspendedStart"; return function (method, arg) { if ("executing" === state) throw new Error("Generator is already running"); if ("completed" === state) { if ("throw" === method) throw arg; return doneResult(); } for (context.method = method, context.arg = arg;;) { var delegate = context.delegate; if (delegate) { var delegateResult = maybeInvokeDelegate(delegate, context); if (delegateResult) { if (delegateResult === ContinueSentinel) continue; return delegateResult; } } if ("next" === context.method) context.sent = context._sent = context.arg;else if ("throw" === context.method) { if ("suspendedStart" === state) throw state = "completed", context.arg; context.dispatchException(context.arg); } else "return" === context.method && context.abrupt("return", context.arg); state = "executing"; var record = tryCatch(innerFn, self, context); if ("normal" === record.type) { if (state = context.done ? "completed" : "suspendedYield", record.arg === ContinueSentinel) continue; return { value: record.arg, done: context.done }; } "throw" === record.type && (state = "completed", context.method = "throw", context.arg = record.arg); } }; } function maybeInvokeDelegate(delegate, context) { var methodName = context.method, method = delegate.iterator[methodName]; if (undefined === method) return context.delegate = null, "throw" === methodName && delegate.iterator["return"] && (context.method = "return", context.arg = undefined, maybeInvokeDelegate(delegate, context), "throw" === context.method) || "return" !== methodName && (context.method = "throw", context.arg = new TypeError("The iterator does not provide a '" + methodName + "' method")), ContinueSentinel; var record = tryCatch(method, delegate.iterator, context.arg); if ("throw" === record.type) return context.method = "throw", context.arg = record.arg, context.delegate = null, ContinueSentinel; var info = record.arg; return info ? info.done ? (context[delegate.resultName] = info.value, context.next = delegate.nextLoc, "return" !== context.method && (context.method = "next", context.arg = undefined), context.delegate = null, ContinueSentinel) : info : (context.method = "throw", context.arg = new TypeError("iterator result is not an object"), context.delegate = null, ContinueSentinel); } function pushTryEntry(locs) { var entry = { tryLoc: locs[0] }; 1 in locs && (entry.catchLoc = locs[1]), 2 in locs && (entry.finallyLoc = locs[2], entry.afterLoc = locs[3]), this.tryEntries.push(entry); } function resetTryEntry(entry) { var record = entry.completion || {}; record.type = "normal", delete record.arg, entry.completion = record; } function Context(tryLocsList) { this.tryEntries = [{ tryLoc: "root" }], tryLocsList.forEach(pushTryEntry, this), this.reset(!0); } function values(iterable) { if (iterable) { var iteratorMethod = iterable[iteratorSymbol]; if (iteratorMethod) return iteratorMethod.call(iterable); if ("function" == typeof iterable.next) return iterable; if (!isNaN(iterable.length)) { var i = -1, next = function next() { for (; ++i < iterable.length;) { if (hasOwn.call(iterable, i)) return next.value = iterable[i], next.done = !1, next; } return next.value = undefined, next.done = !0, next; }; return next.next = next; } } return { next: doneResult }; } function doneResult() { return { value: undefined, done: !0 }; } return GeneratorFunction.prototype = GeneratorFunctionPrototype, defineProperty(Gp, "constructor", { value: GeneratorFunctionPrototype, configurable: !0 }), defineProperty(GeneratorFunctionPrototype, "constructor", { value: GeneratorFunction, configurable: !0 }), GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction"), exports.isGeneratorFunction = function (genFun) { var ctor = "function" == typeof genFun && genFun.constructor; return !!ctor && (ctor === GeneratorFunction || "GeneratorFunction" === (ctor.displayName || ctor.name)); }, exports.mark = function (genFun) { return Object.setPrototypeOf ? Object.setPrototypeOf(genFun, GeneratorFunctionPrototype) : (genFun.__proto__ = GeneratorFunctionPrototype, define(genFun, toStringTagSymbol, "GeneratorFunction")), genFun.prototype = Object.create(Gp), genFun; }, exports.awrap = function (arg) { return { __await: arg }; }, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, asyncIteratorSymbol, function () { return this; }), exports.AsyncIterator = AsyncIterator, exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) { void 0 === PromiseImpl && (PromiseImpl = Promise); var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl); return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) { return result.done ? result.value : iter.next(); }); }, defineIteratorMethods(Gp), define(Gp, toStringTagSymbol, "Generator"), define(Gp, iteratorSymbol, function () { return this; }), define(Gp, "toString", function () { return "[object Generator]"; }), exports.keys = function (val) { var object = Object(val), keys = []; for (var key in object) { keys.push(key); } return keys.reverse(), function next() { for (; keys.length;) { var key = keys.pop(); if (key in object) return next.value = key, next.done = !1, next; } return next.done = !0, next; }; }, exports.values = values, Context.prototype = { constructor: Context, reset: function reset(skipTempReset) { if (this.prev = 0, this.next = 0, this.sent = this._sent = undefined, this.done = !1, this.delegate = null, this.method = "next", this.arg = undefined, this.tryEntries.forEach(resetTryEntry), !skipTempReset) for (var name in this) { "t" === name.charAt(0) && hasOwn.call(this, name) && !isNaN(+name.slice(1)) && (this[name] = undefined); } }, stop: function stop() { this.done = !0; var rootRecord = this.tryEntries[0].completion; if ("throw" === rootRecord.type) throw rootRecord.arg; return this.rval; }, dispatchException: function dispatchException(exception) { if (this.done) throw exception; var context = this; function handle(loc, caught) { return record.type = "throw", record.arg = exception, context.next = loc, caught && (context.method = "next", context.arg = undefined), !!caught; } for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i], record = entry.completion; if ("root" === entry.tryLoc) return handle("end"); if (entry.tryLoc <= this.prev) { var hasCatch = hasOwn.call(entry, "catchLoc"), hasFinally = hasOwn.call(entry, "finallyLoc"); if (hasCatch && hasFinally) { if (this.prev < entry.catchLoc) return handle(entry.catchLoc, !0); if (this.prev < entry.finallyLoc) return handle(entry.finallyLoc); } else if (hasCatch) { if (this.prev < entry.catchLoc) return handle(entry.catchLoc, !0); } else { if (!hasFinally) throw new Error("try statement without catch or finally"); if (this.prev < entry.finallyLoc) return handle(entry.finallyLoc); } } } }, abrupt: function abrupt(type, arg) { for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i]; if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) { var finallyEntry = entry; break; } } finallyEntry && ("break" === type || "continue" === type) && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc && (finallyEntry = null); var record = finallyEntry ? finallyEntry.completion : {}; return record.type = type, record.arg = arg, finallyEntry ? (this.method = "next", this.next = finallyEntry.finallyLoc, ContinueSentinel) : this.complete(record); }, complete: function complete(record, afterLoc) { if ("throw" === record.type) throw record.arg; return "break" === record.type || "continue" === record.type ? this.next = record.arg : "return" === record.type ? (this.rval = this.arg = record.arg, this.method = "return", this.next = "end") : "normal" === record.type && afterLoc && (this.next = afterLoc), ContinueSentinel; }, finish: function finish(finallyLoc) { for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i]; if (entry.finallyLoc === finallyLoc) return this.complete(entry.completion, entry.afterLoc), resetTryEntry(entry), ContinueSentinel; } }, "catch": function _catch(tryLoc) { for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i]; if (entry.tryLoc === tryLoc) { var record = entry.completion; if ("throw" === record.type) { var thrown = record.arg; resetTryEntry(entry); } return thrown; } } throw new Error("illegal catch attempt"); }, delegateYield: function delegateYield(iterable, resultName, nextLoc) { return this.delegate = { iterator: values(iterable), resultName: resultName, nextLoc: nextLoc }, "next" === this.method && (this.arg = undefined), ContinueSentinel; } }, exports; }
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
// How many seconds to wait for a disconnect to finish
var DISCONNECT_TIMEOUT = 3;
var DEFAULT_BACKGROUND = 'rgb(40, 40, 40)';
var _videoQuality = 2;
var _enableWebP = false;
var _enableQOI = false;
// Minimum wait (ms) between two mouse moves
var MOUSE_MOVE_DELAY = 17;
// Wheel thresholds
var WHEEL_LINE_HEIGHT = 19; // Pixels for one line step (on Windows)
// Gesture thresholds
var GESTURE_ZOOMSENS = 75;
var GESTURE_SCRLSENS = 50;
var DOUBLE_TAP_TIMEOUT = 1000;
var DOUBLE_TAP_THRESHOLD = 50;
// Extended clipboard pseudo-encoding formats
var extendedClipboardFormatText = 1;
/*eslint-disable no-unused-vars */
var extendedClipboardFormatRtf = 1 << 1;
var extendedClipboardFormatHtml = 1 << 2;
var extendedClipboardFormatDib = 1 << 3;
var extendedClipboardFormatFiles = 1 << 4;
/*eslint-enable */
// Extended clipboard pseudo-encoding actions
var extendedClipboardActionCaps = 1 << 24;
var extendedClipboardActionRequest = 1 << 25;
var extendedClipboardActionPeek = 1 << 26;
var extendedClipboardActionNotify = 1 << 27;
var extendedClipboardActionProvide = 1 << 28;
var RFB = /*#__PURE__*/function (_EventTargetMixin) {
_inherits(RFB, _EventTargetMixin);
var _super = _createSuper(RFB);
function RFB(target, touchInput, urlOrChannel, options) {
var _this;
_classCallCheck(this, RFB);
if (!target) {
throw new Error("Must specify target");
}
if (!urlOrChannel) {
throw new Error("Must specify URL, WebSocket or RTCDataChannel");
}
_this = _super.call(this);
_this._target = target;
if (typeof urlOrChannel === "string") {
_this._url = urlOrChannel;
} else {
_this._url = null;
_this._rawChannel = urlOrChannel;
}
// Connection details
options = options || {};
_this._rfbCredentials = options.credentials || {};
_this._shared = 'shared' in options ? !!options.shared : true;
_this._repeaterID = options.repeaterID || '';
_this._wsProtocols = options.wsProtocols || ['binary'];
// Internal state
_this._rfbConnectionState = '';
_this._rfbInitState = '';
_this._rfbAuthScheme = -1;
_this._rfbCleanDisconnect = true;
// Server capabilities
_this._rfbVersion = 0;
_this._rfbMaxVersion = 3.8;
_this._rfbTightVNC = false;
_this._rfbVeNCryptState = 0;
_this._rfbXvpVer = 0;
_this._fbWidth = 0;
_this._fbHeight = 0;
_this._fbName = "";
_this._capabilities = {
power: false
};
_this._supportsFence = false;
_this._supportsContinuousUpdates = false;
_this._enabledContinuousUpdates = false;
_this._supportsSetDesktopSize = false;
_this._screenID = 0;
_this._screenFlags = 0;
_this._qemuExtKeyEventSupported = false;
// kasm defaults
_this._jpegVideoQuality = 5;
_this._webpVideoQuality = 5;
_this._treatLossless = 7;
_this._preferBandwidth = true;
_this._dynamicQualityMin = 3;
_this._dynamicQualityMax = 9;
_this._videoArea = 65;
_this._videoTime = 5;
_this._videoOutTime = 3;
_this._videoScaling = 2;
_this._frameRate = 30;
_this._maxVideoResolutionX = 960;
_this._maxVideoResolutionY = 540;
_this._clipboardBinary = true;
_this._useUdp = true;
_this._enableQOI = false;
_this.TransitConnectionStates = {
Tcp: Symbol("tcp"),
Udp: Symbol("udp"),
Upgrading: Symbol("upgrading"),
Downgrading: Symbol("downgrading"),
Failure: Symbol("failure")
};
_this._transitConnectionState = _this.TransitConnectionStates.Tcp;
_this._lastTransition = null;
_this._udpConnectFailures = 0; //Failures in upgrading connection to udp
_this._udpTransitFailures = 0; //Failures in transit after successful upgrade
_this._trackFrameStats = false;
_this._clipboardText = null;
_this._clipboardServerCapabilitiesActions = {};
_this._clipboardServerCapabilitiesFormats = {};
// Internal objects
_this._sock = null; // Websock object
_this._display = null; // Display object
_this._flushing = false; // Display flushing state
_this._keyboard = null; // Keyboard input handler object
_this._gestures = null; // Gesture input handler object
// Timers
_this._disconnTimer = null; // disconnection timer
_this._resizeTimeout = null; // resize rate limiting
_this._mouseMoveTimer = null;
// Decoder states
_this._decoders = {};
_this._FBU = {
rects: 0,
// current rect number
x: 0,
y: 0,
width: 0,
height: 0,
encoding: null,
frame_id: 0,
rect_total: 0 //Total rects in frame
};
// Mouse state
_this._mousePos = {};
_this._mouseButtonMask = 0;
_this._mouseLastMoveTime = 0;
_this._pointerLock = false;
_this._pointerLockPos = {
x: 0,
y: 0
};
_this._pointerRelativeEnabled = false;
_this._mouseLastPinchAndZoomTime = 0;
_this._viewportDragging = false;
_this._viewportDragPos = {};
_this._viewportHasMoved = false;
_this._accumulatedWheelDeltaX = 0;
_this._accumulatedWheelDeltaY = 0;
_this.mouseButtonMapper = null;
// Gesture state
_this._gestureLastTapTime = null;
_this._gestureFirstDoubleTapEv = null;
_this._gestureLastMagnitudeX = 0;
_this._gestureLastMagnitudeY = 0;
// Bound event handlers
_this._eventHandlers = {
updateHiddenKeyboard: _this._updateHiddenKeyboard.bind(_assertThisInitialized(_this)),
focusCanvas: _this._focusCanvas.bind(_assertThisInitialized(_this)),
windowResize: _this._windowResize.bind(_assertThisInitialized(_this)),
handleMouse: _this._handleMouse.bind(_assertThisInitialized(_this)),
handlePointerLockChange: _this._handlePointerLockChange.bind(_assertThisInitialized(_this)),
handlePointerLockError: _this._handlePointerLockError.bind(_assertThisInitialized(_this)),
handleWheel: _this._handleWheel.bind(_assertThisInitialized(_this)),
handleGesture: _this._handleGesture.bind(_assertThisInitialized(_this))
};
// main setup
Log.Debug(">> RFB.constructor");
// Create DOM elements
_this._screen = document.createElement('div');
_this._screen.style.display = 'flex';
_this._screen.style.width = '100%';
_this._screen.style.height = '100%';
_this._screen.style.overflow = 'auto';
_this._screen.style.background = DEFAULT_BACKGROUND;
_this._canvas = document.createElement('canvas');
_this._canvas.style.margin = 'auto';
// Some browsers add an outline on focus
_this._canvas.style.outline = 'none';
_this._canvas.width = 0;
_this._canvas.height = 0;
_this._canvas.tabIndex = -1;
_this._canvas.overflow = 'hidden';
_this._screen.appendChild(_this._canvas);
// Cursor
_this._cursor = new _cursor["default"]();
// XXX: TightVNC 2.8.11 sends no cursor at all until Windows changes
// it. Result: no cursor at all until a window border or an edit field
// is hit blindly. But there are also VNC servers that draw the cursor
// in the framebuffer and don't send the empty local cursor. There is
// no way to satisfy both sides.
//
// The spec is unclear on this "initial cursor" issue. Many other
// viewers (TigerVNC, RealVNC, Remmina) display an arrow as the
// initial cursor instead.
_this._cursorImage = RFB.cursors.none;
// NB: nothing that needs explicit teardown should be done
// before this point, since this can throw an exception
try {
_this._display = new _display["default"](_this._canvas);
} catch (exc) {
Log.Error("Display exception: " + exc);
throw exc;
}
_this._display.onflush = _this._onFlush.bind(_assertThisInitialized(_this));
// populate decoder array with objects
_this._decoders[_encodings.encodings.encodingRaw] = new _raw["default"]();
_this._decoders[_encodings.encodings.encodingCopyRect] = new _copyrect["default"]();
_this._decoders[_encodings.encodings.encodingRRE] = new _rre["default"]();
_this._decoders[_encodings.encodings.encodingHextile] = new _hextile["default"]();
_this._decoders[_encodings.encodings.encodingTight] = new _tight["default"](_this._display);
_this._decoders[_encodings.encodings.encodingTightPNG] = new _tightpng["default"]();
_this._decoders[_encodings.encodings.encodingUDP] = new _udp["default"]();
_this._keyboard = new _keyboard["default"](_this._canvas, touchInput);
_this._keyboard.onkeyevent = _this._handleKeyEvent.bind(_assertThisInitialized(_this));
_this._gestures = new _gesturehandler["default"]();
_this._sock = new _websock["default"]();
_this._sock.on('message', function () {
_this._handleMessage();
});
_this._sock.on('open', function () {
if (_this._rfbConnectionState === 'connecting' && _this._rfbInitState === '') {
_this._rfbInitState = 'ProtocolVersion';
Log.Debug("Starting VNC handshake");
} else {
_this._fail("Unexpected server connection while " + _this._rfbConnectionState);
}
});
_this._sock.on('close', function (e) {
Log.Debug("WebSocket on-close event");
var msg = "";
if (e.code) {
msg = "(code: " + e.code;
if (e.reason) {
msg += ", reason: " + e.reason;
}
msg += ")";
}
switch (_this._rfbConnectionState) {
case 'connecting':
_this._fail("Connection closed " + msg);
break;
case 'connected':
// Handle disconnects that were initiated server-side
_this._updateConnectionState('disconnecting');
_this._updateConnectionState('disconnected');
break;
case 'disconnecting':
// Normal disconnection path
_this._updateConnectionState('disconnected');
break;
case 'disconnected':
_this._fail("Unexpected server disconnect " + "when already disconnected " + msg);
break;
default:
_this._fail("Unexpected server disconnect before connecting " + msg);
break;
}
_this._sock.off('close');
// Delete reference to raw channel to allow cleanup.
_this._rawChannel = null;
});
_this._sock.on('error', function (e) {
return Log.Warn("WebSocket on-error event");
});
// Slight delay of the actual connection so that the caller has
// time to set up callbacks
setTimeout(_this._updateConnectionState.bind(_assertThisInitialized(_this), 'connecting'));
Log.Debug("<< RFB.constructor");
// ===== PROPERTIES =====
_this.dragViewport = false;
_this.focusOnClick = true;
_this.lastActiveAt = Date.now();
_this._viewOnly = false;
_this._clipViewport = false;
_this._scaleViewport = false;
_this._resizeSession = false;
_this._showDotCursor = false;
if (options.showDotCursor !== undefined) {
Log.Warn("Specifying showDotCursor as a RFB constructor argument is deprecated");
_this._showDotCursor = options.showDotCursor;
}
_this._qualityLevel = 6;
_this._compressionLevel = 2;
_this._clipHash = 0;
return _this;
}
// ===== PROPERTIES =====
_createClass(RFB, [{
key: "pointerLock",
get: function get() {
return this._pointerLock;
},
set: function set(value) {
if (!this._pointerLock) {
if (this._canvas.requestPointerLock) {
this._canvas.requestPointerLock();
this._pointerLockChanging = true;
} else if (this._canvas.mozRequestPointerLock) {
this._canvas.mozRequestPointerLock();
this._pointerLockChanging = true;
}
} else {
if (window.document.exitPointerLock) {
window.document.exitPointerLock();
this._pointerLockChanging = true;
} else if (window.document.mozExitPointerLock) {
window.document.mozExitPointerLock();
this._pointerLockChanging = true;
}
}
}
}, {
key: "pointerRelative",
get: function get() {
return this._pointerRelativeEnabled;
},
set: function set(value) {
this._pointerRelativeEnabled = value;
if (value) {
var max_w = this._display.scale === 1 ? this._fbWidth : this._fbWidth * this._display.scale;
var max_h = this._display.scale === 1 ? this._fbHeight : this._fbHeight * this._display.scale;
this._pointerLockPos.x = Math.floor(max_w / 2);
this._pointerLockPos.y = Math.floor(max_h / 2);
// reset the cursor position to center
this._mousePos = {
x: this._pointerLockPos.x,
y: this._pointerLockPos.y
};
this._cursor.move(this._pointerLockPos.x, this._pointerLockPos.y);
}
}
}, {
key: "keyboard",
get: function get() {
return this._keyboard;
}
}, {
key: "clipboardBinary",
get: function get() {
return this._clipboardMode;
},
set: function set(val) {
this._clipboardMode = val;
}
}, {
key: "videoQuality",
get: function get() {
return this._videoQuality;
},
set: function set(quality) {
//if changing to or from a video quality mode that uses a fixed resolution server side
if (this._videoQuality <= 1 || quality <= 1) {
this._pendingApplyResolutionChange = true;
}
this._videoQuality = quality;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "preferBandwidth",
get: function get() {
return this._preferBandwidth;
},
set: function set(val) {
this._preferBandwidth = val;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "viewOnly",
get: function get() {
return this._viewOnly;
},
set: function set(viewOnly) {
this._viewOnly = viewOnly;
if (this._rfbConnectionState === "connecting" || this._rfbConnectionState === "connected") {
if (viewOnly) {
this._keyboard.ungrab();
} else {
this._keyboard.grab();
}
}
}
}, {
key: "capabilities",
get: function get() {
return this._capabilities;
}
}, {
key: "touchButton",
get: function get() {
return 0;
},
set: function set(button) {
Log.Warn("Using old API!");
}
}, {
key: "clipViewport",
get: function get() {
return this._clipViewport;
},
set: function set(viewport) {
this._clipViewport = viewport;
this._updateClip();
}
}, {
key: "scaleViewport",
get: function get() {
return this._scaleViewport;
},
set: function set(scale) {
this._scaleViewport = scale;
// Scaling trumps clipping, so we may need to adjust
// clipping when enabling or disabling scaling
if (scale && this._clipViewport) {
this._updateClip();
}
this._updateScale();
if (!scale && this._clipViewport) {
this._updateClip();
}
}
}, {
key: "resizeSession",
get: function get() {
return this._resizeSession;
},
set: function set(resize) {
this._resizeSession = resize;
if (resize) {
this._requestRemoteResize();
this.scaleViewport = true;
}
}
}, {
key: "showDotCursor",
get: function get() {
return this._showDotCursor;
},
set: function set(show) {
this._showDotCursor = show;
this._refreshCursor();
}
}, {
key: "background",
get: function get() {
return this._screen.style.background;
},
set: function set(cssValue) {
this._screen.style.background = cssValue;
}
}, {
key: "enableWebP",
get: function get() {
return this._enableWebP;
},
set: function set(enabled) {
if (this._enableWebP === enabled) {
return;
}
this._enableWebP = enabled;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "enableQOI",
get: function get() {
return this._enableQOI;
},
set: function set(enabled) {
if (this._enableQOI === enabled) {
return;
}
if (enabled) {
if (!this._decoders[_encodings.encodings.encodingTight].enableQOI()) {
//enabling qoi failed
return;
}
}
this._enableQOI = enabled;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "antiAliasing",
get: function get() {
return this._display.antiAliasing;
},
set: function set(value) {
this._display.antiAliasing = value;
}
}, {
key: "jpegVideoQuality",
get: function get() {
return this._jpegVideoQuality;
},
set: function set(qualityLevel) {
if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
Log.Error("qualityLevel must be an integer between 0 and 9");
return;
}
if (this._jpegVideoQuality === qualityLevel) {
return;
}
this._jpegVideoQuality = qualityLevel;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "webpVideoQuality",
get: function get() {
return this._webpVideoQuality;
},
set: function set(qualityLevel) {
if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
Log.Error("qualityLevel must be an integer between 0 and 9");
return;
}
if (this._webpVideoQuality === qualityLevel) {
return;
}
this._webpVideoQuality = qualityLevel;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "treatLossless",
get: function get() {
return this._treatLossless;
},
set: function set(qualityLevel) {
if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
Log.Error("qualityLevel must be an integer between 0 and 9");
return;
}
if (this._treatLossless === qualityLevel) {
return;
}
this._treatLossless = qualityLevel;
}
}, {
key: "dynamicQualityMin",
get: function get() {
return this._dynamicQualityMin;
},
set: function set(qualityLevel) {
if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
Log.Error("qualityLevel must be an integer between 0 and 9");
return;
}
if (this._dynamicQualityMin === qualityLevel) {
return;
}
this._dynamicQualityMin = qualityLevel;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "dynamicQualityMax",
get: function get() {
return this._dynamicQualityMax;
},
set: function set(qualityLevel) {
if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
Log.Error("qualityLevel must be an integer between 0 and 9");
return;
}
if (this._dynamicQualityMax === qualityLevel) {
return;
}
this._dynamicQualityMax = qualityLevel;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "videoArea",
get: function get() {
return this._videoArea;
},
set: function set(area) {
if (!Number.isInteger(area) || area < 0 || area > 100) {
Log.Error("video area must be an integer between 0 and 100");
return;
}
if (this._videoArea === area) {
return;
}
this._videoArea = area;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "videoTime",
get: function get() {
return this._videoTime;
},
set: function set(value) {
if (!Number.isInteger(value) || value < 0 || value > 100) {
Log.Error("video time must be an integer between 0 and 100");
return;
}
if (this._videoTime === value) {
return;
}
this._videoTime = value;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "videoOutTime",
get: function get() {
return this._videoOutTime;
},
set: function set(value) {
if (!Number.isInteger(value) || value < 0 || value > 100) {
Log.Error("video out time must be an integer between 0 and 100");
return;
}
if (this._videoOutTime === value) {
return;
}
this._videoOutTime = value;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "videoScaling",
get: function get() {
return this._videoScaling;
},
set: function set(value) {
if (!Number.isInteger(value) || value < 0 || value > 2) {
Log.Error("video scaling must be an integer between 0 and 2");
return;
}
if (this._videoScaling === value) {
return;
}
this._videoScaling = value;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "frameRate",
get: function get() {
return this._frameRate;
},
set: function set(value) {
if (!Number.isInteger(value) || value < 1 || value > 120) {
Log.Error("frame rate must be an integer between 1 and 120");
return;
}
if (this._frameRate === value) {
return;
}
this._frameRate = value;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "maxVideoResolutionX",
get: function get() {
return this._maxVideoResolutionX;
},
set: function set(value) {
if (!Number.isInteger(value) || value < 100) {
Log.Error("max video resolution must be an integer greater than 100");
return;
}
if (this._maxVideoResolutionX === value) {
return;
}
this._maxVideoResolutionX = value;
this._pendingApplyVideoRes = true;
}
}, {
key: "maxVideoResolutionY",
get: function get() {
return this._maxVideoResolutionY;
},
set: function set(value) {
if (!Number.isInteger(value) || value < 100) {
Log.Error("max video resolution must be an integer greater than 100");
return;
}
if (this._maxVideoResolutionY === value) {
return;
}
this._maxVideoResolutionY = value;
this._pendingApplyVideoRes = true;
}
}, {
key: "qualityLevel",
get: function get() {
return this._qualityLevel;
},
set: function set(qualityLevel) {
if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
Log.Error("qualityLevel must be an integer between 0 and 9");
return;
}
if (this._qualityLevel === qualityLevel) {
return;
}
this._qualityLevel = qualityLevel;
this._pendingApplyEncodingChanges = true;
}
}, {
key: "compressionLevel",
get: function get() {
return this._compressionLevel;
},
set: function set(compressionLevel) {
if (!Number.isInteger(compressionLevel) || compressionLevel < 0 || compressionLevel > 9) {
Log.Error("compressionLevel must be an integer between 0 and 9");
return;
}
if (this._compressionLevel === compressionLevel) {
return;
}
this._compressionLevel = compressionLevel;
if (this._rfbConnectionState === 'connected') {
this._sendEncodings();
}
}
}, {
key: "statsFps",
get: function get() {
return this._display.fps;
}
}, {
key: "enableWebRTC",
get: function get() {
return this._useUdp;
},
set: function set(value) {
this._useUdp = value;
if (!value) {
if (this._rfbConnectionState === 'connected' && this._transitConnectionState !== this.TransitConnectionStates.Tcp) {
this._sendUdpDowngrade();
}
} else {
if (this._rfbConnectionState === 'connected' && this._transitConnectionState !== this.TransitConnectionStates.Udp) {
this._sendUdpUpgrade();
}
}
}
// ===== PUBLIC METHODS =====
/*
This function must be called after changing any properties that effect rendering quality
*/
}, {
key: "updateConnectionSettings",
value: function updateConnectionSettings() {
if (this._rfbConnectionState === 'connected') {
if (this._pendingApplyVideoRes) {
RFB.messages.setMaxVideoResolution(this._sock, this._maxVideoResolutionX, this._maxVideoResolutionY);
}
if (this._pendingApplyResolutionChange) {
this._requestRemoteResize();
}
if (this._pendingApplyEncodingChanges) {
this._sendEncodings();
}
this._pendingApplyVideoRes = false;
this._pendingApplyEncodingChanges = false;
this._pendingApplyResolutionChange = false;
}
}
}, {
key: "disconnect",
value: function disconnect() {
this._updateConnectionState('disconnecting');
this._sock.off('error');
this._sock.off('message');
this._sock.off('open');
}
}, {
key: "sendCredentials",
value: function sendCredentials(creds) {
this._rfbCredentials = creds;
setTimeout(this._initMsg.bind(this), 0);
}
}, {
key: "sendCtrlAltDel",
value: function sendCtrlAltDel() {
if (this._rfbConnectionState !== 'connected' || this._viewOnly) {
return;
}
Log.Info("Sending Ctrl-Alt-Del");
this.sendKey(_keysym["default"].XK_Control_L, "ControlLeft", true);
this.sendKey(_keysym["default"].XK_Alt_L, "AltLeft", true);
this.sendKey(_keysym["default"].XK_Delete, "Delete", true);
this.sendKey(_keysym["default"].XK_Delete, "Delete", false);
this.sendKey(_keysym["default"].XK_Alt_L, "AltLeft", false);
this.sendKey(_keysym["default"].XK_Control_L, "ControlLeft", false);
}
}, {
key: "machineShutdown",
value: function machineShutdown() {
this._xvpOp(1, 2);
}
}, {
key: "machineReboot",
value: function machineReboot() {
this._xvpOp(1, 3);
}
}, {
key: "machineReset",
value: function machineReset() {
this._xvpOp(1, 4);
}
// Send a key press. If 'down' is not specified then send a down key
// followed by an up key.
}, {
key: "sendKey",
value: function sendKey(keysym, code, down) {
if (this._rfbConnectionState !== 'connected' || this._viewOnly) {
return;
}
if (code !== null) {
this._setLastActive();
}
if (down === undefined) {
this.sendKey(keysym, code, true);
this.sendKey(keysym, code, false);
return;
}
var scancode = _xtscancodes["default"][code];
if (this._qemuExtKeyEventSupported && scancode) {
// 0 is NoSymbol
keysym = keysym || 0;
Log.Info("Sending key (" + (down ? "down" : "up") + "): keysym " + keysym + ", scancode " + scancode);
RFB.messages.QEMUExtendedKeyEvent(this._sock, keysym, down, scancode);
} else {
if (!keysym) {
return;
}
Log.Info("Sending keysym (" + (down ? "down" : "up") + "): " + keysym);
RFB.messages.keyEvent(this._sock, keysym, down ? 1 : 0);
}
}
}, {
key: "focus",
value: function focus() {
this._keyboard.focus();
}
}, {
key: "blur",
value: function blur() {
this._keyboard.blur();
}
}, {
key: "checkLocalClipboard",
value: function checkLocalClipboard() {
var _this2 = this;
if (this.clipboardUp && this.clipboardSeamless) {
if (this.clipboardBinary) {
navigator.clipboard.read().then(function (data) {
_this2.clipboardPasteDataFrom(data);
}, function (err) {
Log.Debug("No data in clipboard: " + err);
});
} else {
if (navigator.clipboard && navigator.clipboard.readText) {
navigator.clipboard.readText().then(function (text) {
this.clipboardPasteFrom(text);
}.bind(this))["catch"](function () {
return Log.Debug("Failed to read system clipboard");
});
}
}
}
}
}, {
key: "clipboardPasteFrom",
value: function clipboardPasteFrom(text) {
if (this._rfbConnectionState !== 'connected' || this._viewOnly) {
return;
}
if (!(typeof text === 'string' && text.length > 0)) {
return;
}
var data = new TextEncoder().encode(text);
var h = (0, _int.hashUInt8Array)(data);
// avoid resending the same data if larger than 64k
if (h === this._clipHash) {
Log.Debug('No clipboard changes');
return;
} else {
this._clipHash = h;
}
var dataset = [];
var mimes = ['text/plain'];
dataset.push(data);
RFB.messages.sendBinaryClipboard(this._sock, dataset, mimes);
}
}, {
key: "clipboardPasteDataFrom",
value: function () {
var _clipboardPasteDataFrom = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(clipdata) {
var dataset, mimes, h, i, ti, mime, blob, buff, data, _i, _i2;
return _regeneratorRuntime().wrap(function _callee$(_context) {
while (1) {
switch (_context.prev = _context.next) {
case 0:
if (!(this._rfbConnectionState !== 'connected' || this._viewOnly)) {
_context.next = 2;
break;
}
return _context.abrupt("return");
case 2:
dataset = [];
mimes = [];
h = 0;
i = 0;
case 6:
if (!(i < clipdata.length)) {
_context.next = 43;
break;
}
ti = 0;
case 8:
if (!(ti < clipdata[i].types.length)) {
_context.next = 40;
break;
}
mime = clipdata[i].types[ti];
_context.t0 = mime;
_context.next = _context.t0 === 'image/png' ? 13 : _context.t0 === 'text/plain' ? 13 : _context.t0 === 'text/html' ? 13 : 36;
break;
case 13:
_context.next = 15;
return clipdata[i].getType(mime);
case 15:
blob = _context.sent;
if (blob) {
_context.next = 18;
break;
}
return _context.abrupt("continue", 37);
case 18:
_context.next = 20;
return blob.arrayBuffer();
case 20:
buff = _context.sent;
data = new Uint8Array(buff);
if (h) {