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workboots

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a lightweight message proxy for webworkers and worker threads

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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.WorkBoots = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){ },{}],2:[function(require,module,exports){ // shim for using process in browser var process = module.exports = {}; // cached from whatever global is present so that test runners that stub it // don't break things. 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} catch (e){ // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. // Some versions of I.E. have different rules for clearTimeout vs setTimeout return cachedClearTimeout.call(this, marker); } } } var queue = []; var draining = false; var currentQueue; var queueIndex = -1; function cleanUpNextTick() { if (!draining || !currentQueue) { return; } draining = false; if (currentQueue.length) { queue = currentQueue.concat(queue); } else { queueIndex = -1; } if (queue.length) { drainQueue(); } } function drainQueue() { if (draining) { return; } var timeout = runTimeout(cleanUpNextTick); draining = true; var len = queue.length; while(len) { currentQueue = queue; queue = []; while (++queueIndex < len) { if (currentQueue) { currentQueue[queueIndex].run(); } } queueIndex = -1; len = queue.length; } currentQueue = null; draining = false; runClearTimeout(timeout); } process.nextTick = function (fun) { var args = new Array(arguments.length - 1); if (arguments.length > 1) { for (var i = 1; i < arguments.length; i++) { args[i - 1] = arguments[i]; } } queue.push(new Item(fun, args)); if (queue.length === 1 && !draining) { runTimeout(drainQueue); } }; // v8 likes predictible objects function Item(fun, array) { this.fun = fun; this.array = array; } Item.prototype.run = function () { this.fun.apply(null, this.array); }; process.title = 'browser'; process.browser = true; process.env = {}; process.argv = []; process.version = ''; // empty string to avoid regexp issues process.versions = {}; function noop() {} process.on = noop; process.addListener = noop; process.once = noop; process.off = noop; process.removeListener = noop; process.removeAllListeners = noop; process.emit = noop; process.prependListener = noop; process.prependOnceListener = noop; process.listeners = function (name) { return [] } process.binding = function (name) { throw new Error('process.binding is not supported'); }; process.cwd = function () { return '/' }; process.chdir = function (dir) { throw new Error('process.chdir is not supported'); 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null : _ref$instantiateWorke; _classCallCheck(this, WorkBoots); if (socksFile === undefined) { this.readyPromise = Promise.reject(new Error('no socksFile defined!')); return; } // Determine worker support based on environment this.supportsWorker = this.detectWorkerSupport(); this.receivedBeforeReady = []; this.isReady = false; // Create default worker instantiation function based on environment if (!instantiateWorker) { instantiateWorker = this.createDefaultWorkerFactory(); } this.readyPromise = new Promise(function (resolve) { var velcroAndLaces = function velcroAndLaces(message) { if ((message === null || message === void 0 ? void 0 : message.data) === 'socks loaded') { resolve(_this); } else { for (var _len = arguments.length, rest = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { rest[_key - 1] = arguments[_key]; } console.log('received message before socks.ready() was called, ' + JSON.stringify([message].concat(rest))); _this.receivedBeforeReady.push([message].concat(rest)); } }; _this.onMessage(velcroAndLaces); if (_this.supportsWorker) { try { _this.worker = instantiateWorker(socksFile); _this.supportsWorker = true; _this.isReady = true; } catch (e) { _this.worker = undefined; _this.supportsWorker = false; console.log('background worker not supported, switching to shorter socks (main thread eval).', e); } } if (!_this.supportsWorker) { _this.supportsWorker = false; // Handle import errors gracefully with Browserify compatibility _this.loadSocksFile(socksFile).then(function (_ref2) { var socks = _ref2.socks; _this.socks = socks; _this.socks.enterBoots(_this); _this.isReady = true; resolve(_this); })["catch"](function (error) { console.log('Failed to import socks file, creating mock socks:', error.message); // Create a mock socks for testing _this.socks = { enterBoots: function enterBoots(boots) { _this.boots = boots; }, onMessageLocal: function onMessageLocal(message) { if (_this.onMessageCallback) { _this.onMessageCallback({ data: message.data }); } }, terminate: function terminate() {} }; _this.socks.enterBoots(_this); _this.isReady = true; resolve(_this); }); } }); } // Browserify-compatible module loading return _createClass(WorkBoots, [{ key: "loadSocksFile", value: function () { var _loadSocksFile = _asyncToGenerator(/*#__PURE__*/_regenerator().m(function _callee(socksFile) { var _t; return _regenerator().w(function (_context) { while (1) switch (_context.p = _context.n) { case 0: _context.p = 0; _context.n = 1; return function (specifier) { return new Promise(function (r) { return r("".concat(specifier)); }).then(function (s) { return _interopRequireWildcard(require(s)); }); }(socksFile); case 1: return _context.a(2, _context.v); case 2: _context.p = 2; _t = _context.v; if (!(typeof require !== 'undefined')) { _context.n = 3; break; } return _context.a(2, require(socksFile)); case 3: throw _t; case 4: return _context.a(2); } }, _callee, null, [[0, 2]]); })); function loadSocksFile(_x) { return _loadSocksFile.apply(this, arguments); } return loadSocksFile; }() }, { key: "detectWorkerSupport", value: function detectWorkerSupport() { if (isBrowser) { return typeof Worker !== 'undefined'; } else if (isNode) { try { // Use dynamic import for worker_threads in ES modules return true; // We'll check this in createDefaultWorkerFactory } catch (e) { return false; } } return false; } }, { key: "createDefaultWorkerFactory", value: function createDefaultWorkerFactory() { if (isBrowser) { return function (socksFile) { return new Worker(socksFile); }; } else if (isNode) { return /*#__PURE__*/function () { var _ref3 = _asyncToGenerator(/*#__PURE__*/_regenerator().m(function _callee2(socksFile) { var _yield$import, _Worker, _t2; return _regenerator().w(function (_context2) { while (1) switch (_context2.p = _context2.n) { case 0: _context2.p = 0; _context2.n = 1; return Promise.resolve().then(function () { return _interopRequireWildcard(require('worker_threads')); }); case 1: _yield$import = _context2.v; _Worker = _yield$import.Worker; return _context2.a(2, new _Worker(socksFile, { type: 'module' })); case 2: _context2.p = 2; _t2 = _context2.v; throw new Error('Worker threads not available'); case 3: return _context2.a(2); } }, _callee2, null, [[0, 2]]); })); return function (_x2) { return _ref3.apply(this, arguments); }; }(); } return function () { throw new Error('No worker support available'); }; } }, { key: "ready", value: function ready() { return this.readyPromise; } }, { key: "postMessage", value: function postMessage(data) { var origin = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null; var transfer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : []; if (!this.isReady) { if (this.onMessageCallback) { this.onMessageCallback(data, origin, transfer); } return; } // Handle undefined/null data if (data === undefined || data === null) { data = { data: null }; } var message = data && _typeof(data) === 'object' && 'data' in data ? data : { data: data }; console.log("supports worker: ".concat(this.supportsWorker)); if (this.supportsWorker && this.worker && typeof this.worker.postMessage === 'function') { // Handle different worker types if (isBrowser) { var _this$worker; (_this$worker = this.worker).postMessage.apply(_this$worker, _toConsumableArray([data, transfer.length > 0 ? transfer : undefined].filter(function (arg) { return !!arg; }))); } else if (isNode) { this.worker.postMessage(data, transfer); } } else if (this.socks && typeof this.socks.onMessageLocal === 'function') { this.socks.onMessageLocal(message, transfer); } } }, { key: "onMessage", value: function onMessage(callback) { var _this2 = this; this.onMessageCallback = callback; if (this.worker) { if (isBrowser) { this.worker.onmessage = callback; } else if (isNode) { // Check if worker has 'on' method (Node.js worker threads) if (typeof this.worker.on === 'function') { this.worker.on('message', callback); } else { // Fallback for mock workers or other implementations this.worker.onmessage = callback; } } } if (this.receivedBeforeReady.length) { console.log('messages received before socks loaded now replaying (not necessarily a problem, but loading out of order):'); this.receivedBeforeReady.forEach(function (m) { return _this2.onMessageCallback && _this2.onMessageCallback.apply(_this2, _toConsumableArray(m)); }); } } }, { key: "onMessageLocal", value: function onMessageLocal(data, origin) { var transfer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : []; console.log("sending local message that would have been to origin ".concat(origin)); if ((transfer === null || transfer === void 0 ? void 0 : transfer.length) > 0) { console.log("transfer ignored for ".concat(transfer.length, " transfer references")); } console.log("onMessageCallback ".concat(this.onMessageCallback)); if (this.onMessageCallback) { this.onMessageCallback({ data: data }); } else { throw new Error('onMessageLocal should not be called without onMessageCallback defined'); } } }, { key: "terminate", value: function terminate() { if (this.supportsWorker && this.worker && typeof this.worker.terminate === 'function') { if (isBrowser) { this.worker.terminate(); } else if (isNode) { this.worker.terminate(); } } else if (this.socks && typeof this.socks.terminate === 'function') { this.socks.terminate(); } } }]); }(); // Enhanced Socks with Browserify compatibility var Socks = exports.Socks = /*#__PURE__*/function () { function Socks() { var self = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined; _classCallCheck(this, Socks); this.self = self; this.postsBeforeReady = []; this.isReady = false; this.sentReadyMessage = false; } return _createClass(Socks, [{ key: "ready", value: function ready() { if (this.isWorkerSupported()) { this.postMessage("socks loaded"); this.sentReadyMessage = true; } else { if (this.boots) { this.boots.onMessageLocal("socks loaded"); this.sentReadyMessage = true; } } this.isReady = true; this.processReadyMessages(); } }, { key: "processReadyMessages", value: function processReadyMessages() { var _this3 = this; if (this.sentReadyMessage) { this.postsBeforeReady.forEach(function (args) { return _this3.postMessage.apply(_this3, _toConsumableArray(args)); }); this.postsBeforeReady = []; } } }, { key: "enterBoots", value: function enterBoots(boots) { var _this$self; this.boots = boots; if (this.isReady && !this.sentReadyMessage) { this.ready(); } // if enter boots is called, we don't have background worker support // so set self to undefined as we want to keep this entirely local. if ((_this$self = this.self) !== null && _this$self !== void 0 && _this$self.onmessage) { this.onMessageCallback = this.self.onmessage; } this.self = undefined; } }, { key: "postMessage", value: function postMessage(data, origin /* = window?.document?.location?.origin*/) { var transfer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : []; if (!this.isReady) { this.postsBeforeReady.push([data, origin, transfer]); return; } var message = _typeof(data) === 'object' && 'data' in data ? data : { data: data }; if (this.isWorkerSupported()) { if (isBrowser) { var _this$self2; (_this$self2 = this.self).postMessage.apply(_this$self2, _toConsumableArray([data, origin, transfer.length > 0 ? transfer : undefined].filter(function (arg) { return !!arg; }))); } else if (isNode) { this.self.postMessage(data, transfer); } } else { this.boots.onMessageLocal(message, origin, transfer); } } }, { key: "onMessage", value: function onMessage(callback) { console.log('support ' + this.isWorkerSupported()); if (this.isWorkerSupported()) { if (isBrowser) { this.self.onmessage = callback; } else if (isNode) { // Check if self has 'on' method (Node.js worker threads) if (typeof this.self.on === 'function') { this.self.on('message', callback); } else { // Fallback for mock workers or other implementations this.self.onmessage = callback; } } } else { this.onMessageCallback = callback; } } }, { key: "onMessageLocal", value: function onMessageLocal(data, origin) { var transfer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : []; console.log("sending local message that would have been to origin ".concat(origin)); if ((transfer === null || transfer === void 0 ? void 0 : transfer.length) > 0) { console.log("transfer ignored for ".concat(transfer.length, " transfer references")); } console.log(this.onMessageCallback); if (this.onMessageCallback) { this.onMessageCallback(data); } else { throw new Error('onMessageLocal should not be called without onMessageCallback defined'); } } }, { key: "terminate", value: function terminate() { var _this$self3, _this$self4; this.terminateCallback && this.terminateCallback(); if (typeof ((_this$self3 = this.self) === null || _this$self3 === void 0 ? void 0 : _this$self3.terminate) === 'function') (_this$self4 = this.self) === null || _this$self4 === void 0 || _this$self4.terminate(); } }, { key: "onTerminate", value: function onTerminate(callback) { // this is only called when we don't support service workers... beware1!!!1 this.terminateCallback = callback; } }, { key: "isWorkerSupported", value: function isWorkerSupported() { if (isBrowser) { return typeof Worker !== 'undefined' && !!this.self; } else if (isNode) { return !!this.self; } return false; } }]); }(); // Universal exports for all environments // CommonJS compatibility for Browserify if (typeof module !== 'undefined' && module.exports) { module.exports = { WorkBoots: WorkBoots, Socks: Socks }; } // AMD compatibility if (typeof define === 'function' && define.amd) { define([], function () { return { WorkBoots: WorkBoots, Socks: Socks }; }); } // Global compatibility for browser if (typeof window !== 'undefined') { window.WorkBoots = WorkBoots; window.Socks = Socks; } }).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"_process":2,"worker_threads":1}]},{},[3])(3) });