1579 lines
49 KiB
JavaScript
1579 lines
49 KiB
JavaScript
var Phoenix = (() => {
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var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name in all)
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__defProp(target, name, { get: all[name], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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// js/phoenix/index.js
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var phoenix_exports = {};
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__export(phoenix_exports, {
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Channel: () => Channel,
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LongPoll: () => LongPoll,
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Presence: () => Presence,
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Serializer: () => serializer_default,
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Socket: () => Socket
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});
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// js/phoenix/utils.js
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var closure = (value) => {
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if (typeof value === "function") {
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return value;
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} else {
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let closure2 = function() {
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return value;
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};
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return closure2;
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}
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};
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// js/phoenix/constants.js
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var globalSelf = typeof self !== "undefined" ? self : null;
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var phxWindow = typeof window !== "undefined" ? window : null;
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var global = globalSelf || phxWindow || global;
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var DEFAULT_VSN = "2.0.0";
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var SOCKET_STATES = { connecting: 0, open: 1, closing: 2, closed: 3 };
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var DEFAULT_TIMEOUT = 1e4;
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var WS_CLOSE_NORMAL = 1e3;
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var CHANNEL_STATES = {
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closed: "closed",
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errored: "errored",
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joined: "joined",
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joining: "joining",
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leaving: "leaving"
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};
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var CHANNEL_EVENTS = {
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close: "phx_close",
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error: "phx_error",
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join: "phx_join",
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reply: "phx_reply",
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leave: "phx_leave"
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};
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var TRANSPORTS = {
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longpoll: "longpoll",
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websocket: "websocket"
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};
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var XHR_STATES = {
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complete: 4
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};
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// js/phoenix/push.js
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var Push = class {
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constructor(channel, event, payload, timeout) {
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this.channel = channel;
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this.event = event;
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this.payload = payload || function() {
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return {};
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};
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this.receivedResp = null;
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this.timeout = timeout;
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this.timeoutTimer = null;
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this.recHooks = [];
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this.sent = false;
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}
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/**
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*
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* @param {number} timeout
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*/
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resend(timeout) {
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this.timeout = timeout;
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this.reset();
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this.send();
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}
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/**
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*
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*/
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send() {
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if (this.hasReceived("timeout")) {
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return;
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}
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this.startTimeout();
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this.sent = true;
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this.channel.socket.push({
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topic: this.channel.topic,
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event: this.event,
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payload: this.payload(),
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ref: this.ref,
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join_ref: this.channel.joinRef()
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});
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}
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/**
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*
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* @param {*} status
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* @param {*} callback
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*/
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receive(status, callback) {
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if (this.hasReceived(status)) {
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callback(this.receivedResp.response);
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}
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this.recHooks.push({ status, callback });
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return this;
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}
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/**
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* @private
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*/
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reset() {
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this.cancelRefEvent();
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this.ref = null;
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this.refEvent = null;
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this.receivedResp = null;
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this.sent = false;
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}
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/**
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* @private
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*/
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matchReceive({ status, response, _ref }) {
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this.recHooks.filter((h) => h.status === status).forEach((h) => h.callback(response));
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}
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/**
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* @private
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*/
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cancelRefEvent() {
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if (!this.refEvent) {
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return;
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}
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this.channel.off(this.refEvent);
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}
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/**
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* @private
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*/
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cancelTimeout() {
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clearTimeout(this.timeoutTimer);
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this.timeoutTimer = null;
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}
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/**
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* @private
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*/
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startTimeout() {
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if (this.timeoutTimer) {
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this.cancelTimeout();
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}
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this.ref = this.channel.socket.makeRef();
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this.refEvent = this.channel.replyEventName(this.ref);
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this.channel.on(this.refEvent, (payload) => {
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this.cancelRefEvent();
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this.cancelTimeout();
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this.receivedResp = payload;
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this.matchReceive(payload);
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});
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this.timeoutTimer = setTimeout(() => {
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this.trigger("timeout", {});
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}, this.timeout);
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}
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/**
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* @private
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*/
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hasReceived(status) {
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return this.receivedResp && this.receivedResp.status === status;
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}
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/**
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* @private
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*/
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trigger(status, response) {
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this.channel.trigger(this.refEvent, { status, response });
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}
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};
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// js/phoenix/timer.js
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var Timer = class {
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constructor(callback, timerCalc) {
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this.callback = callback;
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this.timerCalc = timerCalc;
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this.timer = null;
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this.tries = 0;
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}
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reset() {
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this.tries = 0;
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clearTimeout(this.timer);
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}
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/**
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* Cancels any previous scheduleTimeout and schedules callback
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*/
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scheduleTimeout() {
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clearTimeout(this.timer);
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this.timer = setTimeout(() => {
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this.tries = this.tries + 1;
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this.callback();
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}, this.timerCalc(this.tries + 1));
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}
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};
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// js/phoenix/channel.js
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var Channel = class {
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constructor(topic, params, socket) {
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this.state = CHANNEL_STATES.closed;
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this.topic = topic;
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this.params = closure(params || {});
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this.socket = socket;
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this.bindings = [];
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this.bindingRef = 0;
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this.timeout = this.socket.timeout;
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this.joinedOnce = false;
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this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout);
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this.pushBuffer = [];
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this.stateChangeRefs = [];
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this.rejoinTimer = new Timer(() => {
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if (this.socket.isConnected()) {
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this.rejoin();
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}
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}, this.socket.rejoinAfterMs);
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this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()));
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this.stateChangeRefs.push(
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this.socket.onOpen(() => {
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this.rejoinTimer.reset();
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if (this.isErrored()) {
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this.rejoin();
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}
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})
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);
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this.joinPush.receive("ok", () => {
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this.state = CHANNEL_STATES.joined;
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this.rejoinTimer.reset();
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this.pushBuffer.forEach((pushEvent) => pushEvent.send());
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this.pushBuffer = [];
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});
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this.joinPush.receive("error", () => {
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this.state = CHANNEL_STATES.errored;
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if (this.socket.isConnected()) {
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this.rejoinTimer.scheduleTimeout();
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}
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});
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this.onClose(() => {
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this.rejoinTimer.reset();
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if (this.socket.hasLogger())
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this.socket.log("channel", `close ${this.topic} ${this.joinRef()}`);
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this.state = CHANNEL_STATES.closed;
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this.socket.remove(this);
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});
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this.onError((reason) => {
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if (this.socket.hasLogger())
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this.socket.log("channel", `error ${this.topic}`, reason);
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if (this.isJoining()) {
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this.joinPush.reset();
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}
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this.state = CHANNEL_STATES.errored;
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if (this.socket.isConnected()) {
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this.rejoinTimer.scheduleTimeout();
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}
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});
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this.joinPush.receive("timeout", () => {
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if (this.socket.hasLogger())
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this.socket.log("channel", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout);
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let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout);
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leavePush.send();
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this.state = CHANNEL_STATES.errored;
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this.joinPush.reset();
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if (this.socket.isConnected()) {
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this.rejoinTimer.scheduleTimeout();
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}
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});
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this.on(CHANNEL_EVENTS.reply, (payload, ref) => {
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this.trigger(this.replyEventName(ref), payload);
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});
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}
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/**
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* Join the channel
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* @param {integer} timeout
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* @returns {Push}
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*/
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join(timeout = this.timeout) {
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if (this.joinedOnce) {
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throw new Error("tried to join multiple times. 'join' can only be called a single time per channel instance");
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} else {
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this.timeout = timeout;
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this.joinedOnce = true;
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this.rejoin();
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return this.joinPush;
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}
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}
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/**
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* Hook into channel close
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* @param {Function} callback
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*/
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onClose(callback) {
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this.on(CHANNEL_EVENTS.close, callback);
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}
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/**
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* Hook into channel errors
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* @param {Function} callback
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*/
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onError(callback) {
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return this.on(CHANNEL_EVENTS.error, (reason) => callback(reason));
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}
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/**
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* Subscribes on channel events
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*
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* Subscription returns a ref counter, which can be used later to
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* unsubscribe the exact event listener
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*
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* @example
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* const ref1 = channel.on("event", do_stuff)
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* const ref2 = channel.on("event", do_other_stuff)
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* channel.off("event", ref1)
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* // Since unsubscription, do_stuff won't fire,
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* // while do_other_stuff will keep firing on the "event"
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*
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* @param {string} event
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* @param {Function} callback
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* @returns {integer} ref
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*/
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on(event, callback) {
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let ref = this.bindingRef++;
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this.bindings.push({ event, ref, callback });
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return ref;
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}
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/**
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* Unsubscribes off of channel events
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*
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* Use the ref returned from a channel.on() to unsubscribe one
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* handler, or pass nothing for the ref to unsubscribe all
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* handlers for the given event.
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*
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* @example
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* // Unsubscribe the do_stuff handler
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* const ref1 = channel.on("event", do_stuff)
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* channel.off("event", ref1)
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*
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* // Unsubscribe all handlers from event
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* channel.off("event")
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*
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* @param {string} event
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* @param {integer} ref
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*/
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off(event, ref) {
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this.bindings = this.bindings.filter((bind) => {
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return !(bind.event === event && (typeof ref === "undefined" || ref === bind.ref));
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});
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}
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/**
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* @private
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*/
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canPush() {
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return this.socket.isConnected() && this.isJoined();
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}
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/**
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* Sends a message `event` to phoenix with the payload `payload`.
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* Phoenix receives this in the `handle_in(event, payload, socket)`
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* function. if phoenix replies or it times out (default 10000ms),
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* then optionally the reply can be received.
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*
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* @example
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* channel.push("event")
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* .receive("ok", payload => console.log("phoenix replied:", payload))
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* .receive("error", err => console.log("phoenix errored", err))
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* .receive("timeout", () => console.log("timed out pushing"))
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* @param {string} event
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* @param {Object} payload
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* @param {number} [timeout]
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* @returns {Push}
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*/
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push(event, payload, timeout = this.timeout) {
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payload = payload || {};
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if (!this.joinedOnce) {
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throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`);
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}
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let pushEvent = new Push(this, event, function() {
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return payload;
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}, timeout);
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if (this.canPush()) {
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pushEvent.send();
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} else {
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pushEvent.startTimeout();
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this.pushBuffer.push(pushEvent);
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}
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return pushEvent;
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}
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/** Leaves the channel
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*
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* Unsubscribes from server events, and
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* instructs channel to terminate on server
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*
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* Triggers onClose() hooks
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*
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* To receive leave acknowledgements, use the `receive`
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* hook to bind to the server ack, ie:
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*
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* @example
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* channel.leave().receive("ok", () => alert("left!") )
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*
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* @param {integer} timeout
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* @returns {Push}
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*/
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leave(timeout = this.timeout) {
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this.rejoinTimer.reset();
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this.joinPush.cancelTimeout();
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this.state = CHANNEL_STATES.leaving;
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let onClose = () => {
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if (this.socket.hasLogger())
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this.socket.log("channel", `leave ${this.topic}`);
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this.trigger(CHANNEL_EVENTS.close, "leave");
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};
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let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout);
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leavePush.receive("ok", () => onClose()).receive("timeout", () => onClose());
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leavePush.send();
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if (!this.canPush()) {
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leavePush.trigger("ok", {});
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}
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return leavePush;
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}
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/**
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* Overridable message hook
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*
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* Receives all events for specialized message handling
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* before dispatching to the channel callbacks.
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*
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* Must return the payload, modified or unmodified
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* @param {string} event
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* @param {Object} payload
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* @param {integer} ref
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* @returns {Object}
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*/
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onMessage(_event, payload, _ref) {
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return payload;
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}
|
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/**
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* @private
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*/
|
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isMember(topic, event, payload, joinRef) {
|
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if (this.topic !== topic) {
|
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return false;
|
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}
|
|
if (joinRef && joinRef !== this.joinRef()) {
|
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if (this.socket.hasLogger())
|
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this.socket.log("channel", "dropping outdated message", { topic, event, payload, joinRef });
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return false;
|
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} else {
|
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return true;
|
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}
|
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}
|
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/**
|
|
* @private
|
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*/
|
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joinRef() {
|
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return this.joinPush.ref;
|
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}
|
|
/**
|
|
* @private
|
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*/
|
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rejoin(timeout = this.timeout) {
|
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if (this.isLeaving()) {
|
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return;
|
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}
|
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this.socket.leaveOpenTopic(this.topic);
|
|
this.state = CHANNEL_STATES.joining;
|
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this.joinPush.resend(timeout);
|
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}
|
|
/**
|
|
* @private
|
|
*/
|
|
trigger(event, payload, ref, joinRef) {
|
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let handledPayload = this.onMessage(event, payload, ref, joinRef);
|
|
if (payload && !handledPayload) {
|
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throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");
|
|
}
|
|
let eventBindings = this.bindings.filter((bind) => bind.event === event);
|
|
for (let i = 0; i < eventBindings.length; i++) {
|
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let bind = eventBindings[i];
|
|
bind.callback(handledPayload, ref, joinRef || this.joinRef());
|
|
}
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
replyEventName(ref) {
|
|
return `chan_reply_${ref}`;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
isClosed() {
|
|
return this.state === CHANNEL_STATES.closed;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
isErrored() {
|
|
return this.state === CHANNEL_STATES.errored;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
isJoined() {
|
|
return this.state === CHANNEL_STATES.joined;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
isJoining() {
|
|
return this.state === CHANNEL_STATES.joining;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
isLeaving() {
|
|
return this.state === CHANNEL_STATES.leaving;
|
|
}
|
|
};
|
|
|
|
// js/phoenix/ajax.js
|
|
var Ajax = class {
|
|
static request(method, endPoint, accept, body, timeout, ontimeout, callback) {
|
|
if (global.XDomainRequest) {
|
|
let req = new global.XDomainRequest();
|
|
return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback);
|
|
} else {
|
|
let req = new global.XMLHttpRequest();
|
|
return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback);
|
|
}
|
|
}
|
|
static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback) {
|
|
req.timeout = timeout;
|
|
req.open(method, endPoint);
|
|
req.onload = () => {
|
|
let response = this.parseJSON(req.responseText);
|
|
callback && callback(response);
|
|
};
|
|
if (ontimeout) {
|
|
req.ontimeout = ontimeout;
|
|
}
|
|
req.onprogress = () => {
|
|
};
|
|
req.send(body);
|
|
return req;
|
|
}
|
|
static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback) {
|
|
req.open(method, endPoint, true);
|
|
req.timeout = timeout;
|
|
req.setRequestHeader("Content-Type", accept);
|
|
req.onerror = () => callback && callback(null);
|
|
req.onreadystatechange = () => {
|
|
if (req.readyState === XHR_STATES.complete && callback) {
|
|
let response = this.parseJSON(req.responseText);
|
|
callback(response);
|
|
}
|
|
};
|
|
if (ontimeout) {
|
|
req.ontimeout = ontimeout;
|
|
}
|
|
req.send(body);
|
|
return req;
|
|
}
|
|
static parseJSON(resp) {
|
|
if (!resp || resp === "") {
|
|
return null;
|
|
}
|
|
try {
|
|
return JSON.parse(resp);
|
|
} catch (e) {
|
|
console && console.log("failed to parse JSON response", resp);
|
|
return null;
|
|
}
|
|
}
|
|
static serialize(obj, parentKey) {
|
|
let queryStr = [];
|
|
for (var key in obj) {
|
|
if (!Object.prototype.hasOwnProperty.call(obj, key)) {
|
|
continue;
|
|
}
|
|
let paramKey = parentKey ? `${parentKey}[${key}]` : key;
|
|
let paramVal = obj[key];
|
|
if (typeof paramVal === "object") {
|
|
queryStr.push(this.serialize(paramVal, paramKey));
|
|
} else {
|
|
queryStr.push(encodeURIComponent(paramKey) + "=" + encodeURIComponent(paramVal));
|
|
}
|
|
}
|
|
return queryStr.join("&");
|
|
}
|
|
static appendParams(url, params) {
|
|
if (Object.keys(params).length === 0) {
|
|
return url;
|
|
}
|
|
let prefix = url.match(/\?/) ? "&" : "?";
|
|
return `${url}${prefix}${this.serialize(params)}`;
|
|
}
|
|
};
|
|
|
|
// js/phoenix/longpoll.js
|
|
var arrayBufferToBase64 = (buffer) => {
|
|
let binary = "";
|
|
let bytes = new Uint8Array(buffer);
|
|
let len = bytes.byteLength;
|
|
for (let i = 0; i < len; i++) {
|
|
binary += String.fromCharCode(bytes[i]);
|
|
}
|
|
return btoa(binary);
|
|
};
|
|
var LongPoll = class {
|
|
constructor(endPoint) {
|
|
this.endPoint = null;
|
|
this.token = null;
|
|
this.skipHeartbeat = true;
|
|
this.reqs = /* @__PURE__ */ new Set();
|
|
this.awaitingBatchAck = false;
|
|
this.currentBatch = null;
|
|
this.currentBatchTimer = null;
|
|
this.batchBuffer = [];
|
|
this.onopen = function() {
|
|
};
|
|
this.onerror = function() {
|
|
};
|
|
this.onmessage = function() {
|
|
};
|
|
this.onclose = function() {
|
|
};
|
|
this.pollEndpoint = this.normalizeEndpoint(endPoint);
|
|
this.readyState = SOCKET_STATES.connecting;
|
|
setTimeout(() => this.poll(), 0);
|
|
}
|
|
normalizeEndpoint(endPoint) {
|
|
return endPoint.replace("ws://", "http://").replace("wss://", "https://").replace(new RegExp("(.*)/" + TRANSPORTS.websocket), "$1/" + TRANSPORTS.longpoll);
|
|
}
|
|
endpointURL() {
|
|
return Ajax.appendParams(this.pollEndpoint, { token: this.token });
|
|
}
|
|
closeAndRetry(code, reason, wasClean) {
|
|
this.close(code, reason, wasClean);
|
|
this.readyState = SOCKET_STATES.connecting;
|
|
}
|
|
ontimeout() {
|
|
this.onerror("timeout");
|
|
this.closeAndRetry(1005, "timeout", false);
|
|
}
|
|
isActive() {
|
|
return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting;
|
|
}
|
|
poll() {
|
|
this.ajax("GET", "application/json", null, () => this.ontimeout(), (resp) => {
|
|
if (resp) {
|
|
var { status, token, messages } = resp;
|
|
this.token = token;
|
|
} else {
|
|
status = 0;
|
|
}
|
|
switch (status) {
|
|
case 200:
|
|
messages.forEach((msg) => {
|
|
setTimeout(() => this.onmessage({ data: msg }), 0);
|
|
});
|
|
this.poll();
|
|
break;
|
|
case 204:
|
|
this.poll();
|
|
break;
|
|
case 410:
|
|
this.readyState = SOCKET_STATES.open;
|
|
this.onopen({});
|
|
this.poll();
|
|
break;
|
|
case 403:
|
|
this.onerror(403);
|
|
this.close(1008, "forbidden", false);
|
|
break;
|
|
case 0:
|
|
case 500:
|
|
this.onerror(500);
|
|
this.closeAndRetry(1011, "internal server error", 500);
|
|
break;
|
|
default:
|
|
throw new Error(`unhandled poll status ${status}`);
|
|
}
|
|
});
|
|
}
|
|
// we collect all pushes within the current event loop by
|
|
// setTimeout 0, which optimizes back-to-back procedural
|
|
// pushes against an empty buffer
|
|
send(body) {
|
|
if (typeof body !== "string") {
|
|
body = arrayBufferToBase64(body);
|
|
}
|
|
if (this.currentBatch) {
|
|
this.currentBatch.push(body);
|
|
} else if (this.awaitingBatchAck) {
|
|
this.batchBuffer.push(body);
|
|
} else {
|
|
this.currentBatch = [body];
|
|
this.currentBatchTimer = setTimeout(() => {
|
|
this.batchSend(this.currentBatch);
|
|
this.currentBatch = null;
|
|
}, 0);
|
|
}
|
|
}
|
|
batchSend(messages) {
|
|
this.awaitingBatchAck = true;
|
|
this.ajax("POST", "application/x-ndjson", messages.join("\n"), () => this.onerror("timeout"), (resp) => {
|
|
this.awaitingBatchAck = false;
|
|
if (!resp || resp.status !== 200) {
|
|
this.onerror(resp && resp.status);
|
|
this.closeAndRetry(1011, "internal server error", false);
|
|
} else if (this.batchBuffer.length > 0) {
|
|
this.batchSend(this.batchBuffer);
|
|
this.batchBuffer = [];
|
|
}
|
|
});
|
|
}
|
|
close(code, reason, wasClean) {
|
|
for (let req of this.reqs) {
|
|
req.abort();
|
|
}
|
|
this.readyState = SOCKET_STATES.closed;
|
|
let opts = Object.assign({ code: 1e3, reason: void 0, wasClean: true }, { code, reason, wasClean });
|
|
this.batchBuffer = [];
|
|
clearTimeout(this.currentBatchTimer);
|
|
this.currentBatchTimer = null;
|
|
if (typeof CloseEvent !== "undefined") {
|
|
this.onclose(new CloseEvent("close", opts));
|
|
} else {
|
|
this.onclose(opts);
|
|
}
|
|
}
|
|
ajax(method, contentType, body, onCallerTimeout, callback) {
|
|
let req;
|
|
let ontimeout = () => {
|
|
this.reqs.delete(req);
|
|
onCallerTimeout();
|
|
};
|
|
req = Ajax.request(method, this.endpointURL(), contentType, body, this.timeout, ontimeout, (resp) => {
|
|
this.reqs.delete(req);
|
|
if (this.isActive()) {
|
|
callback(resp);
|
|
}
|
|
});
|
|
this.reqs.add(req);
|
|
}
|
|
};
|
|
|
|
// js/phoenix/presence.js
|
|
var Presence = class {
|
|
constructor(channel, opts = {}) {
|
|
let events = opts.events || { state: "presence_state", diff: "presence_diff" };
|
|
this.state = {};
|
|
this.pendingDiffs = [];
|
|
this.channel = channel;
|
|
this.joinRef = null;
|
|
this.caller = {
|
|
onJoin: function() {
|
|
},
|
|
onLeave: function() {
|
|
},
|
|
onSync: function() {
|
|
}
|
|
};
|
|
this.channel.on(events.state, (newState) => {
|
|
let { onJoin, onLeave, onSync } = this.caller;
|
|
this.joinRef = this.channel.joinRef();
|
|
this.state = Presence.syncState(this.state, newState, onJoin, onLeave);
|
|
this.pendingDiffs.forEach((diff) => {
|
|
this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave);
|
|
});
|
|
this.pendingDiffs = [];
|
|
onSync();
|
|
});
|
|
this.channel.on(events.diff, (diff) => {
|
|
let { onJoin, onLeave, onSync } = this.caller;
|
|
if (this.inPendingSyncState()) {
|
|
this.pendingDiffs.push(diff);
|
|
} else {
|
|
this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave);
|
|
onSync();
|
|
}
|
|
});
|
|
}
|
|
onJoin(callback) {
|
|
this.caller.onJoin = callback;
|
|
}
|
|
onLeave(callback) {
|
|
this.caller.onLeave = callback;
|
|
}
|
|
onSync(callback) {
|
|
this.caller.onSync = callback;
|
|
}
|
|
list(by) {
|
|
return Presence.list(this.state, by);
|
|
}
|
|
inPendingSyncState() {
|
|
return !this.joinRef || this.joinRef !== this.channel.joinRef();
|
|
}
|
|
// lower-level public static API
|
|
/**
|
|
* Used to sync the list of presences on the server
|
|
* with the client's state. An optional `onJoin` and `onLeave` callback can
|
|
* be provided to react to changes in the client's local presences across
|
|
* disconnects and reconnects with the server.
|
|
*
|
|
* @returns {Presence}
|
|
*/
|
|
static syncState(currentState, newState, onJoin, onLeave) {
|
|
let state = this.clone(currentState);
|
|
let joins = {};
|
|
let leaves = {};
|
|
this.map(state, (key, presence) => {
|
|
if (!newState[key]) {
|
|
leaves[key] = presence;
|
|
}
|
|
});
|
|
this.map(newState, (key, newPresence) => {
|
|
let currentPresence = state[key];
|
|
if (currentPresence) {
|
|
let newRefs = newPresence.metas.map((m) => m.phx_ref);
|
|
let curRefs = currentPresence.metas.map((m) => m.phx_ref);
|
|
let joinedMetas = newPresence.metas.filter((m) => curRefs.indexOf(m.phx_ref) < 0);
|
|
let leftMetas = currentPresence.metas.filter((m) => newRefs.indexOf(m.phx_ref) < 0);
|
|
if (joinedMetas.length > 0) {
|
|
joins[key] = newPresence;
|
|
joins[key].metas = joinedMetas;
|
|
}
|
|
if (leftMetas.length > 0) {
|
|
leaves[key] = this.clone(currentPresence);
|
|
leaves[key].metas = leftMetas;
|
|
}
|
|
} else {
|
|
joins[key] = newPresence;
|
|
}
|
|
});
|
|
return this.syncDiff(state, { joins, leaves }, onJoin, onLeave);
|
|
}
|
|
/**
|
|
*
|
|
* Used to sync a diff of presence join and leave
|
|
* events from the server, as they happen. Like `syncState`, `syncDiff`
|
|
* accepts optional `onJoin` and `onLeave` callbacks to react to a user
|
|
* joining or leaving from a device.
|
|
*
|
|
* @returns {Presence}
|
|
*/
|
|
static syncDiff(state, diff, onJoin, onLeave) {
|
|
let { joins, leaves } = this.clone(diff);
|
|
if (!onJoin) {
|
|
onJoin = function() {
|
|
};
|
|
}
|
|
if (!onLeave) {
|
|
onLeave = function() {
|
|
};
|
|
}
|
|
this.map(joins, (key, newPresence) => {
|
|
let currentPresence = state[key];
|
|
state[key] = this.clone(newPresence);
|
|
if (currentPresence) {
|
|
let joinedRefs = state[key].metas.map((m) => m.phx_ref);
|
|
let curMetas = currentPresence.metas.filter((m) => joinedRefs.indexOf(m.phx_ref) < 0);
|
|
state[key].metas.unshift(...curMetas);
|
|
}
|
|
onJoin(key, currentPresence, newPresence);
|
|
});
|
|
this.map(leaves, (key, leftPresence) => {
|
|
let currentPresence = state[key];
|
|
if (!currentPresence) {
|
|
return;
|
|
}
|
|
let refsToRemove = leftPresence.metas.map((m) => m.phx_ref);
|
|
currentPresence.metas = currentPresence.metas.filter((p) => {
|
|
return refsToRemove.indexOf(p.phx_ref) < 0;
|
|
});
|
|
onLeave(key, currentPresence, leftPresence);
|
|
if (currentPresence.metas.length === 0) {
|
|
delete state[key];
|
|
}
|
|
});
|
|
return state;
|
|
}
|
|
/**
|
|
* Returns the array of presences, with selected metadata.
|
|
*
|
|
* @param {Object} presences
|
|
* @param {Function} chooser
|
|
*
|
|
* @returns {Presence}
|
|
*/
|
|
static list(presences, chooser) {
|
|
if (!chooser) {
|
|
chooser = function(key, pres) {
|
|
return pres;
|
|
};
|
|
}
|
|
return this.map(presences, (key, presence) => {
|
|
return chooser(key, presence);
|
|
});
|
|
}
|
|
// private
|
|
static map(obj, func) {
|
|
return Object.getOwnPropertyNames(obj).map((key) => func(key, obj[key]));
|
|
}
|
|
static clone(obj) {
|
|
return JSON.parse(JSON.stringify(obj));
|
|
}
|
|
};
|
|
|
|
// js/phoenix/serializer.js
|
|
var serializer_default = {
|
|
HEADER_LENGTH: 1,
|
|
META_LENGTH: 4,
|
|
KINDS: { push: 0, reply: 1, broadcast: 2 },
|
|
encode(msg, callback) {
|
|
if (msg.payload.constructor === ArrayBuffer) {
|
|
return callback(this.binaryEncode(msg));
|
|
} else {
|
|
let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload];
|
|
return callback(JSON.stringify(payload));
|
|
}
|
|
},
|
|
decode(rawPayload, callback) {
|
|
if (rawPayload.constructor === ArrayBuffer) {
|
|
return callback(this.binaryDecode(rawPayload));
|
|
} else {
|
|
let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload);
|
|
return callback({ join_ref, ref, topic, event, payload });
|
|
}
|
|
},
|
|
// private
|
|
binaryEncode(message) {
|
|
let { join_ref, ref, event, topic, payload } = message;
|
|
let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length;
|
|
let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength);
|
|
let view = new DataView(header);
|
|
let offset = 0;
|
|
view.setUint8(offset++, this.KINDS.push);
|
|
view.setUint8(offset++, join_ref.length);
|
|
view.setUint8(offset++, ref.length);
|
|
view.setUint8(offset++, topic.length);
|
|
view.setUint8(offset++, event.length);
|
|
Array.from(join_ref, (char) => view.setUint8(offset++, char.charCodeAt(0)));
|
|
Array.from(ref, (char) => view.setUint8(offset++, char.charCodeAt(0)));
|
|
Array.from(topic, (char) => view.setUint8(offset++, char.charCodeAt(0)));
|
|
Array.from(event, (char) => view.setUint8(offset++, char.charCodeAt(0)));
|
|
var combined = new Uint8Array(header.byteLength + payload.byteLength);
|
|
combined.set(new Uint8Array(header), 0);
|
|
combined.set(new Uint8Array(payload), header.byteLength);
|
|
return combined.buffer;
|
|
},
|
|
binaryDecode(buffer) {
|
|
let view = new DataView(buffer);
|
|
let kind = view.getUint8(0);
|
|
let decoder = new TextDecoder();
|
|
switch (kind) {
|
|
case this.KINDS.push:
|
|
return this.decodePush(buffer, view, decoder);
|
|
case this.KINDS.reply:
|
|
return this.decodeReply(buffer, view, decoder);
|
|
case this.KINDS.broadcast:
|
|
return this.decodeBroadcast(buffer, view, decoder);
|
|
}
|
|
},
|
|
decodePush(buffer, view, decoder) {
|
|
let joinRefSize = view.getUint8(1);
|
|
let topicSize = view.getUint8(2);
|
|
let eventSize = view.getUint8(3);
|
|
let offset = this.HEADER_LENGTH + this.META_LENGTH - 1;
|
|
let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize));
|
|
offset = offset + joinRefSize;
|
|
let topic = decoder.decode(buffer.slice(offset, offset + topicSize));
|
|
offset = offset + topicSize;
|
|
let event = decoder.decode(buffer.slice(offset, offset + eventSize));
|
|
offset = offset + eventSize;
|
|
let data = buffer.slice(offset, buffer.byteLength);
|
|
return { join_ref: joinRef, ref: null, topic, event, payload: data };
|
|
},
|
|
decodeReply(buffer, view, decoder) {
|
|
let joinRefSize = view.getUint8(1);
|
|
let refSize = view.getUint8(2);
|
|
let topicSize = view.getUint8(3);
|
|
let eventSize = view.getUint8(4);
|
|
let offset = this.HEADER_LENGTH + this.META_LENGTH;
|
|
let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize));
|
|
offset = offset + joinRefSize;
|
|
let ref = decoder.decode(buffer.slice(offset, offset + refSize));
|
|
offset = offset + refSize;
|
|
let topic = decoder.decode(buffer.slice(offset, offset + topicSize));
|
|
offset = offset + topicSize;
|
|
let event = decoder.decode(buffer.slice(offset, offset + eventSize));
|
|
offset = offset + eventSize;
|
|
let data = buffer.slice(offset, buffer.byteLength);
|
|
let payload = { status: event, response: data };
|
|
return { join_ref: joinRef, ref, topic, event: CHANNEL_EVENTS.reply, payload };
|
|
},
|
|
decodeBroadcast(buffer, view, decoder) {
|
|
let topicSize = view.getUint8(1);
|
|
let eventSize = view.getUint8(2);
|
|
let offset = this.HEADER_LENGTH + 2;
|
|
let topic = decoder.decode(buffer.slice(offset, offset + topicSize));
|
|
offset = offset + topicSize;
|
|
let event = decoder.decode(buffer.slice(offset, offset + eventSize));
|
|
offset = offset + eventSize;
|
|
let data = buffer.slice(offset, buffer.byteLength);
|
|
return { join_ref: null, ref: null, topic, event, payload: data };
|
|
}
|
|
};
|
|
|
|
// js/phoenix/socket.js
|
|
var Socket = class {
|
|
constructor(endPoint, opts = {}) {
|
|
this.stateChangeCallbacks = { open: [], close: [], error: [], message: [] };
|
|
this.channels = [];
|
|
this.sendBuffer = [];
|
|
this.ref = 0;
|
|
this.timeout = opts.timeout || DEFAULT_TIMEOUT;
|
|
this.transport = opts.transport || global.WebSocket || LongPoll;
|
|
this.primaryPassedHealthCheck = false;
|
|
this.longPollFallbackMs = opts.longPollFallbackMs;
|
|
this.fallbackTimer = null;
|
|
this.sessionStore = opts.sessionStorage || global && global.sessionStorage;
|
|
this.establishedConnections = 0;
|
|
this.defaultEncoder = serializer_default.encode.bind(serializer_default);
|
|
this.defaultDecoder = serializer_default.decode.bind(serializer_default);
|
|
this.closeWasClean = false;
|
|
this.disconnecting = false;
|
|
this.binaryType = opts.binaryType || "arraybuffer";
|
|
this.connectClock = 1;
|
|
if (this.transport !== LongPoll) {
|
|
this.encode = opts.encode || this.defaultEncoder;
|
|
this.decode = opts.decode || this.defaultDecoder;
|
|
} else {
|
|
this.encode = this.defaultEncoder;
|
|
this.decode = this.defaultDecoder;
|
|
}
|
|
let awaitingConnectionOnPageShow = null;
|
|
if (phxWindow && phxWindow.addEventListener) {
|
|
phxWindow.addEventListener("pagehide", (_e) => {
|
|
if (this.conn) {
|
|
this.disconnect();
|
|
awaitingConnectionOnPageShow = this.connectClock;
|
|
}
|
|
});
|
|
phxWindow.addEventListener("pageshow", (_e) => {
|
|
if (awaitingConnectionOnPageShow === this.connectClock) {
|
|
awaitingConnectionOnPageShow = null;
|
|
this.connect();
|
|
}
|
|
});
|
|
}
|
|
this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 3e4;
|
|
this.rejoinAfterMs = (tries) => {
|
|
if (opts.rejoinAfterMs) {
|
|
return opts.rejoinAfterMs(tries);
|
|
} else {
|
|
return [1e3, 2e3, 5e3][tries - 1] || 1e4;
|
|
}
|
|
};
|
|
this.reconnectAfterMs = (tries) => {
|
|
if (opts.reconnectAfterMs) {
|
|
return opts.reconnectAfterMs(tries);
|
|
} else {
|
|
return [10, 50, 100, 150, 200, 250, 500, 1e3, 2e3][tries - 1] || 5e3;
|
|
}
|
|
};
|
|
this.logger = opts.logger || null;
|
|
if (!this.logger && opts.debug) {
|
|
this.logger = (kind, msg, data) => {
|
|
console.log(`${kind}: ${msg}`, data);
|
|
};
|
|
}
|
|
this.longpollerTimeout = opts.longpollerTimeout || 2e4;
|
|
this.params = closure(opts.params || {});
|
|
this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`;
|
|
this.vsn = opts.vsn || DEFAULT_VSN;
|
|
this.heartbeatTimeoutTimer = null;
|
|
this.heartbeatTimer = null;
|
|
this.pendingHeartbeatRef = null;
|
|
this.reconnectTimer = new Timer(() => {
|
|
this.teardown(() => this.connect());
|
|
}, this.reconnectAfterMs);
|
|
}
|
|
/**
|
|
* Returns the LongPoll transport reference
|
|
*/
|
|
getLongPollTransport() {
|
|
return LongPoll;
|
|
}
|
|
/**
|
|
* Disconnects and replaces the active transport
|
|
*
|
|
* @param {Function} newTransport - The new transport class to instantiate
|
|
*
|
|
*/
|
|
replaceTransport(newTransport) {
|
|
this.connectClock++;
|
|
this.closeWasClean = true;
|
|
clearTimeout(this.fallbackTimer);
|
|
this.reconnectTimer.reset();
|
|
if (this.conn) {
|
|
this.conn.close();
|
|
this.conn = null;
|
|
}
|
|
this.transport = newTransport;
|
|
}
|
|
/**
|
|
* Returns the socket protocol
|
|
*
|
|
* @returns {string}
|
|
*/
|
|
protocol() {
|
|
return location.protocol.match(/^https/) ? "wss" : "ws";
|
|
}
|
|
/**
|
|
* The fully qualified socket url
|
|
*
|
|
* @returns {string}
|
|
*/
|
|
endPointURL() {
|
|
let uri = Ajax.appendParams(
|
|
Ajax.appendParams(this.endPoint, this.params()),
|
|
{ vsn: this.vsn }
|
|
);
|
|
if (uri.charAt(0) !== "/") {
|
|
return uri;
|
|
}
|
|
if (uri.charAt(1) === "/") {
|
|
return `${this.protocol()}:${uri}`;
|
|
}
|
|
return `${this.protocol()}://${location.host}${uri}`;
|
|
}
|
|
/**
|
|
* Disconnects the socket
|
|
*
|
|
* See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.
|
|
*
|
|
* @param {Function} callback - Optional callback which is called after socket is disconnected.
|
|
* @param {integer} code - A status code for disconnection (Optional).
|
|
* @param {string} reason - A textual description of the reason to disconnect. (Optional)
|
|
*/
|
|
disconnect(callback, code, reason) {
|
|
this.connectClock++;
|
|
this.disconnecting = true;
|
|
this.closeWasClean = true;
|
|
clearTimeout(this.fallbackTimer);
|
|
this.reconnectTimer.reset();
|
|
this.teardown(() => {
|
|
this.disconnecting = false;
|
|
callback && callback();
|
|
}, code, reason);
|
|
}
|
|
/**
|
|
*
|
|
* @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`
|
|
*
|
|
* Passing params to connect is deprecated; pass them in the Socket constructor instead:
|
|
* `new Socket("/socket", {params: {user_id: userToken}})`.
|
|
*/
|
|
connect(params) {
|
|
if (params) {
|
|
console && console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor");
|
|
this.params = closure(params);
|
|
}
|
|
if (this.conn && !this.disconnecting) {
|
|
return;
|
|
}
|
|
if (this.longPollFallbackMs && this.transport !== LongPoll) {
|
|
this.connectWithFallback(LongPoll, this.longPollFallbackMs);
|
|
} else {
|
|
this.transportConnect();
|
|
}
|
|
}
|
|
/**
|
|
* Logs the message. Override `this.logger` for specialized logging. noops by default
|
|
* @param {string} kind
|
|
* @param {string} msg
|
|
* @param {Object} data
|
|
*/
|
|
log(kind, msg, data) {
|
|
this.logger && this.logger(kind, msg, data);
|
|
}
|
|
/**
|
|
* Returns true if a logger has been set on this socket.
|
|
*/
|
|
hasLogger() {
|
|
return this.logger !== null;
|
|
}
|
|
/**
|
|
* Registers callbacks for connection open events
|
|
*
|
|
* @example socket.onOpen(function(){ console.info("the socket was opened") })
|
|
*
|
|
* @param {Function} callback
|
|
*/
|
|
onOpen(callback) {
|
|
let ref = this.makeRef();
|
|
this.stateChangeCallbacks.open.push([ref, callback]);
|
|
return ref;
|
|
}
|
|
/**
|
|
* Registers callbacks for connection close events
|
|
* @param {Function} callback
|
|
*/
|
|
onClose(callback) {
|
|
let ref = this.makeRef();
|
|
this.stateChangeCallbacks.close.push([ref, callback]);
|
|
return ref;
|
|
}
|
|
/**
|
|
* Registers callbacks for connection error events
|
|
*
|
|
* @example socket.onError(function(error){ alert("An error occurred") })
|
|
*
|
|
* @param {Function} callback
|
|
*/
|
|
onError(callback) {
|
|
let ref = this.makeRef();
|
|
this.stateChangeCallbacks.error.push([ref, callback]);
|
|
return ref;
|
|
}
|
|
/**
|
|
* Registers callbacks for connection message events
|
|
* @param {Function} callback
|
|
*/
|
|
onMessage(callback) {
|
|
let ref = this.makeRef();
|
|
this.stateChangeCallbacks.message.push([ref, callback]);
|
|
return ref;
|
|
}
|
|
/**
|
|
* Pings the server and invokes the callback with the RTT in milliseconds
|
|
* @param {Function} callback
|
|
*
|
|
* Returns true if the ping was pushed or false if unable to be pushed.
|
|
*/
|
|
ping(callback) {
|
|
if (!this.isConnected()) {
|
|
return false;
|
|
}
|
|
let ref = this.makeRef();
|
|
let startTime = Date.now();
|
|
this.push({ topic: "phoenix", event: "heartbeat", payload: {}, ref });
|
|
let onMsgRef = this.onMessage((msg) => {
|
|
if (msg.ref === ref) {
|
|
this.off([onMsgRef]);
|
|
callback(Date.now() - startTime);
|
|
}
|
|
});
|
|
return true;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
transportConnect() {
|
|
this.connectClock++;
|
|
this.closeWasClean = false;
|
|
this.conn = new this.transport(this.endPointURL());
|
|
this.conn.binaryType = this.binaryType;
|
|
this.conn.timeout = this.longpollerTimeout;
|
|
this.conn.onopen = () => this.onConnOpen();
|
|
this.conn.onerror = (error) => this.onConnError(error);
|
|
this.conn.onmessage = (event) => this.onConnMessage(event);
|
|
this.conn.onclose = (event) => this.onConnClose(event);
|
|
}
|
|
getSession(key) {
|
|
return this.sessionStore && this.sessionStore.getItem(key);
|
|
}
|
|
storeSession(key, val) {
|
|
this.sessionStore && this.sessionStore.setItem(key, val);
|
|
}
|
|
connectWithFallback(fallbackTransport, fallbackThreshold = 2500) {
|
|
clearTimeout(this.fallbackTimer);
|
|
let established = false;
|
|
let primaryTransport = true;
|
|
let openRef, errorRef;
|
|
let fallback = (reason) => {
|
|
this.log("transport", `falling back to ${fallbackTransport.name}...`, reason);
|
|
this.off([openRef, errorRef]);
|
|
primaryTransport = false;
|
|
this.replaceTransport(fallbackTransport);
|
|
this.transportConnect();
|
|
};
|
|
if (this.getSession(`phx:fallback:${fallbackTransport.name}`)) {
|
|
return fallback("memorized");
|
|
}
|
|
this.fallbackTimer = setTimeout(fallback, fallbackThreshold);
|
|
errorRef = this.onError((reason) => {
|
|
this.log("transport", "error", reason);
|
|
if (primaryTransport && !established) {
|
|
clearTimeout(this.fallbackTimer);
|
|
fallback(reason);
|
|
}
|
|
});
|
|
this.onOpen(() => {
|
|
established = true;
|
|
if (!primaryTransport) {
|
|
if (!this.primaryPassedHealthCheck) {
|
|
this.storeSession(`phx:fallback:${fallbackTransport.name}`, "true");
|
|
}
|
|
return this.log("transport", `established ${fallbackTransport.name} fallback`);
|
|
}
|
|
clearTimeout(this.fallbackTimer);
|
|
this.fallbackTimer = setTimeout(fallback, fallbackThreshold);
|
|
this.ping((rtt) => {
|
|
this.log("transport", "connected to primary after", rtt);
|
|
this.primaryPassedHealthCheck = true;
|
|
clearTimeout(this.fallbackTimer);
|
|
});
|
|
});
|
|
this.transportConnect();
|
|
}
|
|
clearHeartbeats() {
|
|
clearTimeout(this.heartbeatTimer);
|
|
clearTimeout(this.heartbeatTimeoutTimer);
|
|
}
|
|
onConnOpen() {
|
|
if (this.hasLogger())
|
|
this.log("transport", `${this.transport.name} connected to ${this.endPointURL()}`);
|
|
this.closeWasClean = false;
|
|
this.disconnecting = false;
|
|
this.establishedConnections++;
|
|
this.flushSendBuffer();
|
|
this.reconnectTimer.reset();
|
|
this.resetHeartbeat();
|
|
this.stateChangeCallbacks.open.forEach(([, callback]) => callback());
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
heartbeatTimeout() {
|
|
if (this.pendingHeartbeatRef) {
|
|
this.pendingHeartbeatRef = null;
|
|
if (this.hasLogger()) {
|
|
this.log("transport", "heartbeat timeout. Attempting to re-establish connection");
|
|
}
|
|
this.triggerChanError();
|
|
this.closeWasClean = false;
|
|
this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, "heartbeat timeout");
|
|
}
|
|
}
|
|
resetHeartbeat() {
|
|
if (this.conn && this.conn.skipHeartbeat) {
|
|
return;
|
|
}
|
|
this.pendingHeartbeatRef = null;
|
|
this.clearHeartbeats();
|
|
this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs);
|
|
}
|
|
teardown(callback, code, reason) {
|
|
if (!this.conn) {
|
|
return callback && callback();
|
|
}
|
|
let connectClock = this.connectClock;
|
|
this.waitForBufferDone(() => {
|
|
if (connectClock !== this.connectClock) {
|
|
return;
|
|
}
|
|
if (this.conn) {
|
|
if (code) {
|
|
this.conn.close(code, reason || "");
|
|
} else {
|
|
this.conn.close();
|
|
}
|
|
}
|
|
this.waitForSocketClosed(() => {
|
|
if (connectClock !== this.connectClock) {
|
|
return;
|
|
}
|
|
if (this.conn) {
|
|
this.conn.onopen = function() {
|
|
};
|
|
this.conn.onerror = function() {
|
|
};
|
|
this.conn.onmessage = function() {
|
|
};
|
|
this.conn.onclose = function() {
|
|
};
|
|
this.conn = null;
|
|
}
|
|
callback && callback();
|
|
});
|
|
});
|
|
}
|
|
waitForBufferDone(callback, tries = 1) {
|
|
if (tries === 5 || !this.conn || !this.conn.bufferedAmount) {
|
|
callback();
|
|
return;
|
|
}
|
|
setTimeout(() => {
|
|
this.waitForBufferDone(callback, tries + 1);
|
|
}, 150 * tries);
|
|
}
|
|
waitForSocketClosed(callback, tries = 1) {
|
|
if (tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed) {
|
|
callback();
|
|
return;
|
|
}
|
|
setTimeout(() => {
|
|
this.waitForSocketClosed(callback, tries + 1);
|
|
}, 150 * tries);
|
|
}
|
|
onConnClose(event) {
|
|
let closeCode = event && event.code;
|
|
if (this.hasLogger())
|
|
this.log("transport", "close", event);
|
|
this.triggerChanError();
|
|
this.clearHeartbeats();
|
|
if (!this.closeWasClean && closeCode !== 1e3) {
|
|
this.reconnectTimer.scheduleTimeout();
|
|
}
|
|
this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event));
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
onConnError(error) {
|
|
if (this.hasLogger())
|
|
this.log("transport", error);
|
|
let transportBefore = this.transport;
|
|
let establishedBefore = this.establishedConnections;
|
|
this.stateChangeCallbacks.error.forEach(([, callback]) => {
|
|
callback(error, transportBefore, establishedBefore);
|
|
});
|
|
if (transportBefore === this.transport || establishedBefore > 0) {
|
|
this.triggerChanError();
|
|
}
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
triggerChanError() {
|
|
this.channels.forEach((channel) => {
|
|
if (!(channel.isErrored() || channel.isLeaving() || channel.isClosed())) {
|
|
channel.trigger(CHANNEL_EVENTS.error);
|
|
}
|
|
});
|
|
}
|
|
/**
|
|
* @returns {string}
|
|
*/
|
|
connectionState() {
|
|
switch (this.conn && this.conn.readyState) {
|
|
case SOCKET_STATES.connecting:
|
|
return "connecting";
|
|
case SOCKET_STATES.open:
|
|
return "open";
|
|
case SOCKET_STATES.closing:
|
|
return "closing";
|
|
default:
|
|
return "closed";
|
|
}
|
|
}
|
|
/**
|
|
* @returns {boolean}
|
|
*/
|
|
isConnected() {
|
|
return this.connectionState() === "open";
|
|
}
|
|
/**
|
|
* @private
|
|
*
|
|
* @param {Channel}
|
|
*/
|
|
remove(channel) {
|
|
this.off(channel.stateChangeRefs);
|
|
this.channels = this.channels.filter((c) => c !== channel);
|
|
}
|
|
/**
|
|
* Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.
|
|
*
|
|
* @param {refs} - list of refs returned by calls to
|
|
* `onOpen`, `onClose`, `onError,` and `onMessage`
|
|
*/
|
|
off(refs) {
|
|
for (let key in this.stateChangeCallbacks) {
|
|
this.stateChangeCallbacks[key] = this.stateChangeCallbacks[key].filter(([ref]) => {
|
|
return refs.indexOf(ref) === -1;
|
|
});
|
|
}
|
|
}
|
|
/**
|
|
* Initiates a new channel for the given topic
|
|
*
|
|
* @param {string} topic
|
|
* @param {Object} chanParams - Parameters for the channel
|
|
* @returns {Channel}
|
|
*/
|
|
channel(topic, chanParams = {}) {
|
|
let chan = new Channel(topic, chanParams, this);
|
|
this.channels.push(chan);
|
|
return chan;
|
|
}
|
|
/**
|
|
* @param {Object} data
|
|
*/
|
|
push(data) {
|
|
if (this.hasLogger()) {
|
|
let { topic, event, payload, ref, join_ref } = data;
|
|
this.log("push", `${topic} ${event} (${join_ref}, ${ref})`, payload);
|
|
}
|
|
if (this.isConnected()) {
|
|
this.encode(data, (result) => this.conn.send(result));
|
|
} else {
|
|
this.sendBuffer.push(() => this.encode(data, (result) => this.conn.send(result)));
|
|
}
|
|
}
|
|
/**
|
|
* Return the next message ref, accounting for overflows
|
|
* @returns {string}
|
|
*/
|
|
makeRef() {
|
|
let newRef = this.ref + 1;
|
|
if (newRef === this.ref) {
|
|
this.ref = 0;
|
|
} else {
|
|
this.ref = newRef;
|
|
}
|
|
return this.ref.toString();
|
|
}
|
|
sendHeartbeat() {
|
|
if (this.pendingHeartbeatRef && !this.isConnected()) {
|
|
return;
|
|
}
|
|
this.pendingHeartbeatRef = this.makeRef();
|
|
this.push({ topic: "phoenix", event: "heartbeat", payload: {}, ref: this.pendingHeartbeatRef });
|
|
this.heartbeatTimeoutTimer = setTimeout(() => this.heartbeatTimeout(), this.heartbeatIntervalMs);
|
|
}
|
|
flushSendBuffer() {
|
|
if (this.isConnected() && this.sendBuffer.length > 0) {
|
|
this.sendBuffer.forEach((callback) => callback());
|
|
this.sendBuffer = [];
|
|
}
|
|
}
|
|
onConnMessage(rawMessage) {
|
|
this.decode(rawMessage.data, (msg) => {
|
|
let { topic, event, payload, ref, join_ref } = msg;
|
|
if (ref && ref === this.pendingHeartbeatRef) {
|
|
this.clearHeartbeats();
|
|
this.pendingHeartbeatRef = null;
|
|
this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs);
|
|
}
|
|
if (this.hasLogger())
|
|
this.log("receive", `${payload.status || ""} ${topic} ${event} ${ref && "(" + ref + ")" || ""}`, payload);
|
|
for (let i = 0; i < this.channels.length; i++) {
|
|
const channel = this.channels[i];
|
|
if (!channel.isMember(topic, event, payload, join_ref)) {
|
|
continue;
|
|
}
|
|
channel.trigger(event, payload, ref, join_ref);
|
|
}
|
|
for (let i = 0; i < this.stateChangeCallbacks.message.length; i++) {
|
|
let [, callback] = this.stateChangeCallbacks.message[i];
|
|
callback(msg);
|
|
}
|
|
});
|
|
}
|
|
leaveOpenTopic(topic) {
|
|
let dupChannel = this.channels.find((c) => c.topic === topic && (c.isJoined() || c.isJoining()));
|
|
if (dupChannel) {
|
|
if (this.hasLogger())
|
|
this.log("transport", `leaving duplicate topic "${topic}"`);
|
|
dupChannel.leave();
|
|
}
|
|
}
|
|
};
|
|
return __toCommonJS(phoenix_exports);
|
|
})();
|