415 line
13 KiB
JavaScript
415 line
13 KiB
JavaScript
(function (global, factory) {
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if (typeof define === "function" && define.amd) {
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define(['module', 'exports', 'angular', 'ws'], factory);
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} else if (typeof exports !== "undefined") {
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factory(module, exports, require('angular'), require('ws'));
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} else {
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var mod = {
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exports: {}
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};
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factory(mod, mod.exports, global.angular, global.ws);
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global.angularWebsocket = mod.exports;
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}
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})(this, function (module, exports, _angular, ws) {
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'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _angular2 = _interopRequireDefault(_angular);
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {
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default: obj
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};
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}
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var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
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return typeof obj;
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} : function (obj) {
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return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj;
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};
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var Socket;
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if (typeof window === 'undefined') {
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try {
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Socket = ws.Client || ws.client || ws;
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} catch (e) {}
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}
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// Browser
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Socket = Socket || window.WebSocket || window.MozWebSocket;
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var noop = _angular2.default.noop;
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var objectFreeze = Object.freeze ? Object.freeze : noop;
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var objectDefineProperty = Object.defineProperty;
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var isString = _angular2.default.isString;
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var isFunction = _angular2.default.isFunction;
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var isDefined = _angular2.default.isDefined;
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var isObject = _angular2.default.isObject;
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var isArray = _angular2.default.isArray;
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var forEach = _angular2.default.forEach;
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var arraySlice = Array.prototype.slice;
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// ie8 wat
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if (!Array.prototype.indexOf) {
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Array.prototype.indexOf = function (elt /*, from*/) {
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var len = this.length >>> 0;
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var from = Number(arguments[1]) || 0;
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from = from < 0 ? Math.ceil(from) : Math.floor(from);
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if (from < 0) {
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from += len;
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}
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for (; from < len; from++) {
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if (from in this && this[from] === elt) {
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return from;
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}
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}
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return -1;
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};
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}
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// $WebSocketProvider.$inject = ['$rootScope', '$q', '$timeout', '$websocketBackend'];
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function $WebSocketProvider($rootScope, $q, $timeout, $websocketBackend) {
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function $WebSocket(url, protocols, options) {
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if (!options && isObject(protocols) && !isArray(protocols)) {
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options = protocols;
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protocols = undefined;
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}
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this.protocols = protocols;
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this.url = url || 'Missing URL';
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this.ssl = /(wss)/i.test(this.url);
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// this.binaryType = '';
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// this.extensions = '';
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// this.bufferedAmount = 0;
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// this.trasnmitting = false;
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// this.buffer = [];
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// TODO: refactor options to use isDefined
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this.scope = options && options.scope || $rootScope;
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this.rootScopeFailover = options && options.rootScopeFailover && true;
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this.useApplyAsync = options && options.useApplyAsync || false;
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this.initialTimeout = options && options.initialTimeout || 500; // 500ms
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this.maxTimeout = options && options.maxTimeout || 5 * 60 * 1000; // 5 minutes
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this.reconnectIfNotNormalClose = options && options.reconnectIfNotNormalClose || false;
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this.binaryType = options && options.binaryType || 'blob';
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this._reconnectAttempts = 0;
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this.sendQueue = [];
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this.onOpenCallbacks = [];
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this.onMessageCallbacks = [];
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this.onErrorCallbacks = [];
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this.onCloseCallbacks = [];
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objectFreeze(this._readyStateConstants);
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if (url) {
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this._connect();
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} else {
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this._setInternalState(0);
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}
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}
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$WebSocket.prototype._readyStateConstants = {
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'CONNECTING': 0,
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'OPEN': 1,
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'CLOSING': 2,
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'CLOSED': 3,
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'RECONNECT_ABORTED': 4
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};
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$WebSocket.prototype._normalCloseCode = 1000;
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$WebSocket.prototype._reconnectableStatusCodes = [4000];
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$WebSocket.prototype.safeDigest = function safeDigest(autoApply) {
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if (autoApply && !this.scope.$$phase) {
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this.scope.$digest();
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}
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};
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$WebSocket.prototype.bindToScope = function bindToScope(scope) {
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var self = this;
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if (scope) {
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this.scope = scope;
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if (this.rootScopeFailover) {
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this.scope.$on('$destroy', function () {
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self.scope = $rootScope;
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});
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}
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}
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return self;
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};
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$WebSocket.prototype._connect = function _connect(force) {
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if (force || !this.socket || this.socket.readyState !== this._readyStateConstants.OPEN) {
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this.socket = $websocketBackend.create(this.url, this.protocols);
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this.socket.onmessage = _angular2.default.bind(this, this._onMessageHandler);
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this.socket.onopen = _angular2.default.bind(this, this._onOpenHandler);
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this.socket.onerror = _angular2.default.bind(this, this._onErrorHandler);
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this.socket.onclose = _angular2.default.bind(this, this._onCloseHandler);
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this.socket.binaryType = this.binaryType;
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}
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};
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$WebSocket.prototype.fireQueue = function fireQueue() {
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while (this.sendQueue.length && this.socket.readyState === this._readyStateConstants.OPEN) {
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var data = this.sendQueue.shift();
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this.socket.send(isString(data.message) || this.binaryType != 'blob' ? data.message : JSON.stringify(data.message));
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data.deferred.resolve();
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}
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};
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$WebSocket.prototype.notifyOpenCallbacks = function notifyOpenCallbacks(event) {
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for (var i = 0; i < this.onOpenCallbacks.length; i++) {
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this.onOpenCallbacks[i].call(this, event);
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}
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};
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$WebSocket.prototype.notifyCloseCallbacks = function notifyCloseCallbacks(event) {
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for (var i = 0; i < this.onCloseCallbacks.length; i++) {
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this.onCloseCallbacks[i].call(this, event);
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}
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};
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$WebSocket.prototype.notifyErrorCallbacks = function notifyErrorCallbacks(event) {
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for (var i = 0; i < this.onErrorCallbacks.length; i++) {
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this.onErrorCallbacks[i].call(this, event);
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}
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};
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$WebSocket.prototype.onOpen = function onOpen(cb) {
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this.onOpenCallbacks.push(cb);
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return this;
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};
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$WebSocket.prototype.onClose = function onClose(cb) {
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this.onCloseCallbacks.push(cb);
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return this;
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};
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$WebSocket.prototype.onError = function onError(cb) {
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this.onErrorCallbacks.push(cb);
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return this;
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};
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$WebSocket.prototype.onMessage = function onMessage(callback, options) {
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if (!isFunction(callback)) {
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throw new Error('Callback must be a function');
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}
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if (options && isDefined(options.filter) && !isString(options.filter) && !(options.filter instanceof RegExp)) {
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throw new Error('Pattern must be a string or regular expression');
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}
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this.onMessageCallbacks.push({
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fn: callback,
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pattern: options ? options.filter : undefined,
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autoApply: options ? options.autoApply : true
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});
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return this;
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};
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$WebSocket.prototype._onOpenHandler = function _onOpenHandler(event) {
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this._reconnectAttempts = 0;
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this.notifyOpenCallbacks(event);
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this.fireQueue();
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};
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$WebSocket.prototype._onCloseHandler = function _onCloseHandler(event) {
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var self = this;
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if (self.useApplyAsync) {
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self.scope.$applyAsync(function () {
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self.notifyCloseCallbacks(event);
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});
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} else {
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self.notifyCloseCallbacks(event);
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self.safeDigest(true);
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}
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if (this.reconnectIfNotNormalClose && event.code !== this._normalCloseCode || this._reconnectableStatusCodes.indexOf(event.code) > -1) {
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this.reconnect();
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}
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};
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$WebSocket.prototype._onErrorHandler = function _onErrorHandler(event) {
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var self = this;
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if (self.useApplyAsync) {
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self.scope.$applyAsync(function () {
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self.notifyErrorCallbacks(event);
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});
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} else {
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self.notifyErrorCallbacks(event);
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self.safeDigest(true);
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}
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};
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$WebSocket.prototype._onMessageHandler = function _onMessageHandler(message) {
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var pattern;
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var self = this;
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var currentCallback;
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for (var i = 0; i < self.onMessageCallbacks.length; i++) {
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currentCallback = self.onMessageCallbacks[i];
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pattern = currentCallback.pattern;
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if (pattern) {
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if (isString(pattern) && message.data === pattern) {
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applyAsyncOrDigest(currentCallback.fn, currentCallback.autoApply, message);
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} else if (pattern instanceof RegExp && pattern.exec(message.data)) {
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applyAsyncOrDigest(currentCallback.fn, currentCallback.autoApply, message);
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}
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} else {
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applyAsyncOrDigest(currentCallback.fn, currentCallback.autoApply, message);
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}
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}
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function applyAsyncOrDigest(callback, autoApply, args) {
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args = arraySlice.call(arguments, 2);
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if (self.useApplyAsync) {
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self.scope.$applyAsync(function () {
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callback.apply(self, args);
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});
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} else {
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callback.apply(self, args);
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self.safeDigest(autoApply);
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}
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}
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};
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$WebSocket.prototype.close = function close(force) {
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if (force || !this.socket.bufferedAmount) {
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this.socket.close();
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}
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return this;
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};
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$WebSocket.prototype.send = function send(data) {
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var deferred = $q.defer();
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var self = this;
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var promise = cancelableify(deferred.promise);
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if (self.readyState === self._readyStateConstants.RECONNECT_ABORTED) {
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deferred.reject('Socket connection has been closed');
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} else {
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self.sendQueue.push({
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message: data,
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deferred: deferred
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});
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self.fireQueue();
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}
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// Credit goes to @btford
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function cancelableify(promise) {
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promise.cancel = cancel;
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var then = promise.then;
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promise.then = function () {
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var newPromise = then.apply(this, arguments);
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return cancelableify(newPromise);
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};
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return promise;
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}
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function cancel(reason) {
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self.sendQueue.splice(self.sendQueue.indexOf(data), 1);
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deferred.reject(reason);
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return self;
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}
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if ($websocketBackend.isMocked && $websocketBackend.isMocked() && $websocketBackend.isConnected(this.url)) {
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this._onMessageHandler($websocketBackend.mockSend());
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}
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return promise;
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};
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$WebSocket.prototype.reconnect = function reconnect() {
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this.close();
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var backoffDelay = this._getBackoffDelay(++this._reconnectAttempts);
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var backoffDelaySeconds = backoffDelay / 1000;
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console.log('Reconnecting in ' + backoffDelaySeconds + ' seconds');
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$timeout(_angular2.default.bind(this, this._connect), backoffDelay);
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return this;
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};
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// Exponential Backoff Formula by Prof. Douglas Thain
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// http://dthain.blogspot.co.uk/2009/02/exponential-backoff-in-distributed.html
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$WebSocket.prototype._getBackoffDelay = function _getBackoffDelay(attempt) {
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var R = Math.random() + 1;
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var T = this.initialTimeout;
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var F = 2;
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var N = attempt;
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var M = this.maxTimeout;
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return Math.floor(Math.min(R * T * Math.pow(F, N), M));
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};
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$WebSocket.prototype._setInternalState = function _setInternalState(state) {
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if (Math.floor(state) !== state || state < 0 || state > 4) {
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throw new Error('state must be an integer between 0 and 4, got: ' + state);
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}
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// ie8 wat
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if (!objectDefineProperty) {
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this.readyState = state || this.socket.readyState;
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}
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this._internalConnectionState = state;
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forEach(this.sendQueue, function (pending) {
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pending.deferred.reject('Message cancelled due to closed socket connection');
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});
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};
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// Read only .readyState
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if (objectDefineProperty) {
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objectDefineProperty($WebSocket.prototype, 'readyState', {
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get: function get() {
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return this._internalConnectionState || this.socket.readyState;
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},
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set: function set() {
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throw new Error('The readyState property is read-only');
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}
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});
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}
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return function (url, protocols, options) {
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return new $WebSocket(url, protocols, options);
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};
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}
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// $WebSocketBackendProvider.$inject = ['$log'];
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function $WebSocketBackendProvider($log) {
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this.create = function create(url, protocols) {
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var match = /wss?:\/\//.exec(url);
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if (!match) {
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throw new Error('Invalid url provided');
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}
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if (protocols) {
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return new Socket(url, protocols);
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}
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return new Socket(url);
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};
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this.createWebSocketBackend = function createWebSocketBackend(url, protocols) {
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$log.warn('Deprecated: Please use .create(url, protocols)');
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return this.create(url, protocols);
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};
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}
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_angular2.default.module('ngWebSocket', []).factory('$websocket', ['$rootScope', '$q', '$timeout', '$websocketBackend', $WebSocketProvider]).factory('WebSocket', ['$rootScope', '$q', '$timeout', 'WebsocketBackend', $WebSocketProvider]).service('$websocketBackend', ['$log', $WebSocketBackendProvider]).service('WebSocketBackend', ['$log', $WebSocketBackendProvider]);
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_angular2.default.module('angular-websocket', ['ngWebSocket']);
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exports.default = _angular2.default.module('ngWebSocket');
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module.exports = exports['default'];
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});
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