diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d5f19d8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+node_modules
+package-lock.json
diff --git a/index.js b/index.js
index 4bf7417..03e2163 100644
--- a/index.js
+++ b/index.js
@@ -15,9 +15,11 @@ if (SUBFOLDER != '/') {
//// Application Variables ////
var socketIO = require('socket.io');
var express = require('express');
+var path_node = require('path');
+var morgan = require('morgan');
var ejs = require('ejs');
-var app = require('express')();
-var http = require('http').Server(app);
+var app = express();
+var http = require('http').createServer(app);
var bodyParser = require('body-parser');
var baseRouter = express.Router();
var fsw = require('fs').promises;
@@ -27,34 +29,40 @@ var audioEnabled = true;
var PulseAudio = require('pulseaudio2');
var pulse = new PulseAudio();
pulse.on('error', function(error) {
- console.log(error);
+ console.error("[kclient] pulse audio error: ", error);
audioEnabled = false;
- console.log('Kclient was unable to init audio, it is possible your host lacks support!!!!');
+ console.log('[kclient] Kclient was unable to init audio, it is possible your host lacks support!!!!');
});
-
+var port = 6900;
//// Server Paths Main ////
-app.engine('html', require('ejs').renderFile);
-app.engine('json', require('ejs').renderFile);
-baseRouter.use('/public', express.static(__dirname + '/public'));
-baseRouter.use('/vnc', express.static("/usr/share/kasmvnc/www/"));
-baseRouter.get('/', function (req, res) {
- res.render(__dirname + '/public/index.html', {title: TITLE, path: PATH});
+var public_dir = path_node.join(__dirname, 'public');
+
+app.engine('html', ejs.renderFile);
+app.engine('json', ejs.renderFile);
+app.use(morgan('combined'));
+
+//// Routes ////
+baseRouter.get('/ping', function (req, res) {
+ res.send("pong");
});
baseRouter.get('/favicon.ico', function (req, res) {
- res.sendFile(__dirname + '/public/favicon.ico');
+ res.sendFile(path_node.join(public_dir, 'favicon.ico'));
+});
+baseRouter.get('/', function (req, res) {
+ res.render(path_node.join(public_dir, 'index.html'), {title: TITLE, path: PATH, path_prefix: SUBFOLDER});
});
baseRouter.get('/manifest.json', function (req, res) {
- res.render(__dirname + '/public/manifest.json', {title: TITLE});
+ res.render(path_node.join(public_dir, 'manifest.json'), {title: TITLE, path_prefix: SUBFOLDER});
});
-
-//// Web File Browser ////
-// Send landing page
baseRouter.get('/files', function (req, res) {
- res.sendFile( __dirname + '/public/filebrowser.html');
+ res.render(path_node.join(public_dir, 'filebrowser.html'), {path_prefix: SUBFOLDER});
});
+
+app.use(SUBFOLDER, baseRouter);
+
// Websocket comms //
-io = socketIO(http, {path: SUBFOLDER + 'files/socket.io',maxHttpBufferSize: 200000000});
+var io = socketIO(http, {path: SUBFOLDER + 'files/socket.io', maxHttpBufferSize: 200000000});
io.on('connection', async function (socket) {
let id = socket.id;
@@ -72,69 +80,90 @@ io.on('connection', async function (socket) {
// Get file list for directory
async function getFiles(directory) {
- try {
- let items = await fsw.readdir(directory);
- if (items.length > 0) {
- let dirs = [];
- let files = [];
- for await (let item of items) {
- let fullPath = directory + '/' + item;
- if (fs.lstatSync(fullPath).isDirectory()) {
- dirs.push(item);
- } else {
- files.push(item);
+ try {
+ if (fs.existsSync(directory)) {
+ let items = await fsw.readdir(directory);
+ if (items.length > 0) {
+ let dirs = [];
+ let files = [];
+ for await (let item of items) {
+ let fullPath = directory + '/' + item;
+ if (fs.lstatSync(fullPath).isDirectory()) {
+ dirs.push(item);
+ } else {
+ files.push(item);
+ }
}
+ send('renderfiles', [dirs, files, directory]);
+ } else {
+ send('renderfiles', [[], [], directory]);
}
- send('renderfiles', [dirs, files, directory]);
} else {
send('renderfiles', [[], [], directory]);
}
} catch (error) {
+ console.error("[kclient] getFiles error: ", error);
send('renderfiles', [[], [], directory]);
}
}
// Send file to client
async function downloadFile(file) {
- let fileName = file.split('/').slice(-1)[0];
- let data = await fsw.readFile(file);
- send('sendfile', [data, fileName]);
+ try {
+ let fileName = file.split('/').slice(-1)[0];
+ let data = await fsw.readFile(file);
+ send('sendfile', [data, fileName]);
+ } catch (error) {
+ console.error("[kclient] Error on downloadFile: ", error);
+ }
}
// Write client sent file
async function uploadFile(res) {
- let directory = res[0];
- let filePath = res[1];
- let data = res[2];
- let render = res[3];
- let dirArr = filePath.split('/');
- let folder = filePath.replace(dirArr[dirArr.length - 1], '')
- await fsw.mkdir(folder, { recursive: true });
- await fsw.writeFile(filePath, Buffer.from(data));
- if (render) {
- getFiles(directory);
+ try {
+ let directory = res[0];
+ let filePath = res[1];
+ let data = res[2];
+ let render = res[3];
+ let dirArr = filePath.split('/');
+ let folder = filePath.replace(dirArr[dirArr.length - 1], '')
+
+ await fsw.mkdir(folder, { recursive: true });
+ await fsw.writeFile(filePath, Buffer.from(data));
+
+ if (render) {
+ getFiles(directory);
+ }
+ } catch (error) {
+ console.error("[kclient] Error on uploadFile: ", error);
}
}
// Delete files
async function deleteFiles(res) {
- let item = res[0];
- let directory = res[1];
- item = item.replace("|","'");
- if (fs.lstatSync(item).isDirectory()) {
- await fsw.rm(item, {recursive: true});
- } else {
- await fsw.unlink(item);
+ try {
+ let item = res[0];
+ let directory = res[1];
+ item = item.replace("|","'");
+ if (fs.lstatSync(item).isDirectory()) {
+ await fsw.rm(item, {recursive: true});
+ } else {
+ await fsw.unlink(item);
+ }
+ getFiles(directory);
+ } catch (error) {
+ console.error("[kclient] Error on deleteFiles: ", error);
}
- getFiles(directory);
}
// Create a folder
async function createFolder(res) {
let dir = res[0];
let directory = res[1];
- if (!fs.existsSync(dir)){
- await fsw.mkdir(dir);
+ try {
+ await fsw.mkdir(dir, { recursive: true });
+ } catch (error) {
+ console.info("[kclient] Dir exists!");
}
getFiles(directory);
}
@@ -149,7 +178,7 @@ io.on('connection', async function (socket) {
});
//// PCM Audio Wrapper ////
-aio = socketIO(http, {path: SUBFOLDER + 'audio/socket.io'});
+var aio = socketIO(http, {path: SUBFOLDER + 'audio/socket.io'});
aio.on('connection', function (socket) {
var record;
let id = socket.id;
@@ -175,6 +204,7 @@ aio.on('connection', function (socket) {
}
}
function close() {
+ console.info('[kclient] audio socket closed.');
if (audioEnabled) {
if (record) record.end();
}
@@ -182,7 +212,11 @@ aio.on('connection', function (socket) {
// Dump blobs to pulseaudio sink
async function micData(buffer) {
- await fsw.writeFile('/defaults/mic.sock', buffer);
+ try {
+ await fsw.writeFile('/defaults/mic.sock', buffer);
+ } catch (error) {
+ console.error('[kclient] Error on micData: ' + error);
+ }
}
// Incoming socket requests
@@ -192,6 +226,21 @@ aio.on('connection', function (socket) {
socket.on('micdata', micData);
});
-// Spin up application on 6900
-app.use(SUBFOLDER, baseRouter);
-http.listen(6900);
+// Spin up application on port
+http
+ .listen(port, function() {
+ console.log('[kclient] Listening on port ' + port);
+ })
+ .on('error', function(err) {
+ console.log('[kclient] Error on http server: ');
+ console.error(err);
+ });
+
+process
+ .on('unhandledRejection', function (reason, p) {
+ console.error('[kclient] Unhandled Rejection at:', p, 'reason:', reason);
+ })
+ .on('uncaughtException', function (err) {
+ console.log('[kclient] Uncaught exception: ');
+ console.error(err.stack);
+ });
diff --git a/package.json b/package.json
index c00ed48..fe266bc 100644
--- a/package.json
+++ b/package.json
@@ -6,10 +6,10 @@
"dependencies": {
"ejs": "^3.1.8",
"express": "^4.18.2",
+ "morgan": "^1.10.0",
"pulseaudio2": "^0.5.5",
- "socket.io": "^4.6.0"
+ "socket.io": "^4.8.1"
},
- "devDependencies": {},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
diff --git a/public/filebrowser.html b/public/filebrowser.html
index cdfc904..b54bdf5 100644
--- a/public/filebrowser.html
+++ b/public/filebrowser.html
@@ -1,10 +1,10 @@
-
-
-
-
+
+
+
+
diff --git a/public/index.html b/public/index.html
index 5f314dd..29a63de 100644
--- a/public/index.html
+++ b/public/index.html
@@ -6,27 +6,27 @@
<%- title -%>
-
-
-
-
+
+
+
+
-
+
-
-
+
+
diff --git a/public/js/kclient.js b/public/js/kclient.js
index e932cc5..9e6a6b0 100644
--- a/public/js/kclient.js
+++ b/public/js/kclient.js
@@ -47,7 +47,7 @@ PCM.prototype.init = function() {
this.gainNode.connect(this.audioCtx.destination)
this.startTime = this.audioCtx.currentTime
}
-// Stereo player
+// Stereo player
PCM.prototype.feed = function(data) {
lock = true;
// Convert bytes to typed array then float32 array
@@ -80,7 +80,7 @@ PCM.prototype.feed = function(data) {
this.startTime += duration;
}
}
-// Destroy player
+// Destroy player
PCM.prototype.destroy = function() {
buffer = [];
playing = false;
@@ -133,9 +133,11 @@ var host = window.location.hostname;
var port = window.location.port;
var protocol = window.location.protocol;
var path = window.location.pathname;
-var socket = io(protocol + '//' + host + ':' + port, { path: path + 'audio/socket.io'});
+var socket = io(protocol + '//' + host + ':' + port, { path: (path + ((!path.endsWith('/') && path != '/') ? '/' : '')) + 'audio/socket.io'});
var player = {};
var micEnabled = false;
+var micWorkletNode; // To store the AudioWorkletNode
+var audio_context;
function audio() {
if (('audioCtx' in player) && (player.audioCtx)) {
@@ -155,11 +157,41 @@ function processAudio(data) {
socket.on('audio', processAudio);
-var audio_context;
-function mic() {
+// Define the AudioWorkletProcessor as a string.
+const micWorkletProcessorCode = `
+class MicWorkletProcessor extends AudioWorkletProcessor {
+ constructor() {
+ super();
+ }
+
+ process(inputs, outputs, parameters) {
+ const input = inputs[0];
+
+ if (input && input[0]) { // Check if input and channel data are available
+ const inputChannelData = input[0];
+ const int16Array = Int16Array.from(inputChannelData, x => x * 32767);
+ if (! int16Array.every(item => item === 0)) {
+ this.port.postMessage({ buffer: int16Array.buffer });
+ }
+ }
+ return true; // Keep the processor alive
+ }
+}
+
+registerProcessor('mic-worklet-processor', MicWorkletProcessor);
+`;
+
+async function mic() {
if (micEnabled) {
$('#micButton').removeClass("icons-selected");
- audio_context.close();
+ if (micWorkletNode) {
+ micWorkletNode.disconnect();
+ micWorkletNode = null; // Release the node
+ }
+ if (audio_context) {
+ audio_context.close();
+ audio_context = null;
+ }
micEnabled = false;
return;
}
@@ -168,22 +200,27 @@ function mic() {
var mediaConstraints = {
audio: true
};
- navigator.getUserMedia(mediaConstraints, onMediaSuccess, onMediaError);
- function onMediaSuccess(stream) {
- audio_context = new window.AudioContext;
- let source = audio_context.createMediaStreamSource(stream);
- let processor = audio_context.createScriptProcessor(512, 1, 1);
- source.connect(processor);
- processor.connect(audio_context.destination);
- processor.onaudioprocess = function (audioEvent) {
- let int16Array = Int16Array.from(audioEvent.inputBuffer.getChannelData(0), x => x * 32767);
- let arraySize = new Blob([JSON.stringify(int16Array)]).size;
- if (arraySize > 4100) {
- socket.emit('micdata', int16Array.buffer);
- }
+
+ try {
+ const stream = await navigator.mediaDevices.getUserMedia(mediaConstraints);
+ audio_context = new window.AudioContext();
+
+ // Create a URL for the AudioWorkletProcessor code
+ const micWorkletProcessorBlob = new Blob([micWorkletProcessorCode], { type: 'text/javascript' });
+ const micWorkletProcessorURL = URL.createObjectURL(micWorkletProcessorBlob);
+
+ await audio_context.audioWorklet.addModule(micWorkletProcessorURL);
+
+ micWorkletNode = new AudioWorkletNode(audio_context, 'mic-worklet-processor');
+
+ micWorkletNode.port.onmessage = (event) => {
+ socket.emit('micdata', event.data.buffer);
};
- }
- function onMediaError(e) {
+
+ let source = audio_context.createMediaStreamSource(stream);
+ source.connect(micWorkletNode);
+
+ } catch (e) {
console.error('media error', e);
$('#micButton').removeClass("icons-selected");
micEnabled = false;
diff --git a/public/js/socket.io.js b/public/js/socket.io.js
new file mode 100644
index 0000000..c3067db
--- /dev/null
+++ b/public/js/socket.io.js
@@ -0,0 +1,4908 @@
+/*!
+ * Socket.IO v4.8.1
+ * (c) 2014-2024 Guillermo Rauch
+ * Released under the MIT License.
+ */
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.io = factory());
+ })(this, (function () { 'use strict';
+
+ function _arrayLikeToArray(r, a) {
+ (null == a || a > r.length) && (a = r.length);
+ for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];
+ return n;
+ }
+ function _arrayWithoutHoles(r) {
+ if (Array.isArray(r)) return _arrayLikeToArray(r);
+ }
+ function _construct(t, e, r) {
+ if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
+ var o = [null];
+ o.push.apply(o, e);
+ var p = new (t.bind.apply(t, o))();
+ return r && _setPrototypeOf(p, r.prototype), p;
+ }
+ function _defineProperties(e, r) {
+ for (var t = 0; t < r.length; t++) {
+ var o = r[t];
+ o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o);
+ }
+ }
+ function _createClass(e, r, t) {
+ return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", {
+ writable: !1
+ }), e;
+ }
+ function _createForOfIteratorHelper(r, e) {
+ var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
+ if (!t) {
+ if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) {
+ t && (r = t);
+ var n = 0,
+ F = function () {};
+ return {
+ s: F,
+ n: function () {
+ return n >= r.length ? {
+ done: !0
+ } : {
+ done: !1,
+ value: r[n++]
+ };
+ },
+ e: function (r) {
+ throw r;
+ },
+ f: F
+ };
+ }
+ throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+ }
+ var o,
+ a = !0,
+ u = !1;
+ return {
+ s: function () {
+ t = t.call(r);
+ },
+ n: function () {
+ var r = t.next();
+ return a = r.done, r;
+ },
+ e: function (r) {
+ u = !0, o = r;
+ },
+ f: function () {
+ try {
+ a || null == t.return || t.return();
+ } finally {
+ if (u) throw o;
+ }
+ }
+ };
+ }
+ function _extends() {
+ return _extends = Object.assign ? Object.assign.bind() : function (n) {
+ for (var e = 1; e < arguments.length; e++) {
+ var t = arguments[e];
+ for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]);
+ }
+ return n;
+ }, _extends.apply(null, arguments);
+ }
+ function _getPrototypeOf(t) {
+ return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) {
+ return t.__proto__ || Object.getPrototypeOf(t);
+ }, _getPrototypeOf(t);
+ }
+ function _inheritsLoose(t, o) {
+ t.prototype = Object.create(o.prototype), t.prototype.constructor = t, _setPrototypeOf(t, o);
+ }
+ function _isNativeFunction(t) {
+ try {
+ return -1 !== Function.toString.call(t).indexOf("[native code]");
+ } catch (n) {
+ return "function" == typeof t;
+ }
+ }
+ function _isNativeReflectConstruct() {
+ try {
+ var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+ } catch (t) {}
+ return (_isNativeReflectConstruct = function () {
+ return !!t;
+ })();
+ }
+ function _iterableToArray(r) {
+ if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r);
+ }
+ function _nonIterableSpread() {
+ throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+ }
+ function _setPrototypeOf(t, e) {
+ return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) {
+ return t.__proto__ = e, t;
+ }, _setPrototypeOf(t, e);
+ }
+ function _toConsumableArray(r) {
+ return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread();
+ }
+ function _toPrimitive(t, r) {
+ if ("object" != typeof t || !t) return t;
+ var e = t[Symbol.toPrimitive];
+ if (void 0 !== e) {
+ var i = e.call(t, r || "default");
+ if ("object" != typeof i) return i;
+ throw new TypeError("@@toPrimitive must return a primitive value.");
+ }
+ return ("string" === r ? String : Number)(t);
+ }
+ function _toPropertyKey(t) {
+ var i = _toPrimitive(t, "string");
+ return "symbol" == typeof i ? i : i + "";
+ }
+ function _typeof(o) {
+ "@babel/helpers - typeof";
+
+ return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
+ return typeof o;
+ } : function (o) {
+ return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
+ }, _typeof(o);
+ }
+ function _unsupportedIterableToArray(r, a) {
+ if (r) {
+ if ("string" == typeof r) return _arrayLikeToArray(r, a);
+ var t = {}.toString.call(r).slice(8, -1);
+ return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;
+ }
+ }
+ function _wrapNativeSuper(t) {
+ var r = "function" == typeof Map ? new Map() : void 0;
+ return _wrapNativeSuper = function (t) {
+ if (null === t || !_isNativeFunction(t)) return t;
+ if ("function" != typeof t) throw new TypeError("Super expression must either be null or a function");
+ if (void 0 !== r) {
+ if (r.has(t)) return r.get(t);
+ r.set(t, Wrapper);
+ }
+ function Wrapper() {
+ return _construct(t, arguments, _getPrototypeOf(this).constructor);
+ }
+ return Wrapper.prototype = Object.create(t.prototype, {
+ constructor: {
+ value: Wrapper,
+ enumerable: !1,
+ writable: !0,
+ configurable: !0
+ }
+ }), _setPrototypeOf(Wrapper, t);
+ }, _wrapNativeSuper(t);
+ }
+
+ var PACKET_TYPES = Object.create(null); // no Map = no polyfill
+ PACKET_TYPES["open"] = "0";
+ PACKET_TYPES["close"] = "1";
+ PACKET_TYPES["ping"] = "2";
+ PACKET_TYPES["pong"] = "3";
+ PACKET_TYPES["message"] = "4";
+ PACKET_TYPES["upgrade"] = "5";
+ PACKET_TYPES["noop"] = "6";
+ var PACKET_TYPES_REVERSE = Object.create(null);
+ Object.keys(PACKET_TYPES).forEach(function (key) {
+ PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
+ });
+ var ERROR_PACKET = {
+ type: "error",
+ data: "parser error"
+ };
+
+ var withNativeBlob$1 = typeof Blob === "function" || typeof Blob !== "undefined" && Object.prototype.toString.call(Blob) === "[object BlobConstructor]";
+ var withNativeArrayBuffer$2 = typeof ArrayBuffer === "function";
+ // ArrayBuffer.isView method is not defined in IE10
+ var isView$1 = function isView(obj) {
+ return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj && obj.buffer instanceof ArrayBuffer;
+ };
+ var encodePacket = function encodePacket(_ref, supportsBinary, callback) {
+ var type = _ref.type,
+ data = _ref.data;
+ if (withNativeBlob$1 && data instanceof Blob) {
+ if (supportsBinary) {
+ return callback(data);
+ } else {
+ return encodeBlobAsBase64(data, callback);
+ }
+ } else if (withNativeArrayBuffer$2 && (data instanceof ArrayBuffer || isView$1(data))) {
+ if (supportsBinary) {
+ return callback(data);
+ } else {
+ return encodeBlobAsBase64(new Blob([data]), callback);
+ }
+ }
+ // plain string
+ return callback(PACKET_TYPES[type] + (data || ""));
+ };
+ var encodeBlobAsBase64 = function encodeBlobAsBase64(data, callback) {
+ var fileReader = new FileReader();
+ fileReader.onload = function () {
+ var content = fileReader.result.split(",")[1];
+ callback("b" + (content || ""));
+ };
+ return fileReader.readAsDataURL(data);
+ };
+ function toArray(data) {
+ if (data instanceof Uint8Array) {
+ return data;
+ } else if (data instanceof ArrayBuffer) {
+ return new Uint8Array(data);
+ } else {
+ return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);
+ }
+ }
+ var TEXT_ENCODER;
+ function encodePacketToBinary(packet, callback) {
+ if (withNativeBlob$1 && packet.data instanceof Blob) {
+ return packet.data.arrayBuffer().then(toArray).then(callback);
+ } else if (withNativeArrayBuffer$2 && (packet.data instanceof ArrayBuffer || isView$1(packet.data))) {
+ return callback(toArray(packet.data));
+ }
+ encodePacket(packet, false, function (encoded) {
+ if (!TEXT_ENCODER) {
+ TEXT_ENCODER = new TextEncoder();
+ }
+ callback(TEXT_ENCODER.encode(encoded));
+ });
+ }
+
+ // imported from https://github.com/socketio/base64-arraybuffer
+ var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+ // Use a lookup table to find the index.
+ var lookup$1 = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
+ for (var i = 0; i < chars.length; i++) {
+ lookup$1[chars.charCodeAt(i)] = i;
+ }
+ var decode$1 = function decode(base64) {
+ var bufferLength = base64.length * 0.75,
+ len = base64.length,
+ i,
+ p = 0,
+ encoded1,
+ encoded2,
+ encoded3,
+ encoded4;
+ if (base64[base64.length - 1] === '=') {
+ bufferLength--;
+ if (base64[base64.length - 2] === '=') {
+ bufferLength--;
+ }
+ }
+ var arraybuffer = new ArrayBuffer(bufferLength),
+ bytes = new Uint8Array(arraybuffer);
+ for (i = 0; i < len; i += 4) {
+ encoded1 = lookup$1[base64.charCodeAt(i)];
+ encoded2 = lookup$1[base64.charCodeAt(i + 1)];
+ encoded3 = lookup$1[base64.charCodeAt(i + 2)];
+ encoded4 = lookup$1[base64.charCodeAt(i + 3)];
+ bytes[p++] = encoded1 << 2 | encoded2 >> 4;
+ bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
+ bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
+ }
+ return arraybuffer;
+ };
+
+ var withNativeArrayBuffer$1 = typeof ArrayBuffer === "function";
+ var decodePacket = function decodePacket(encodedPacket, binaryType) {
+ if (typeof encodedPacket !== "string") {
+ return {
+ type: "message",
+ data: mapBinary(encodedPacket, binaryType)
+ };
+ }
+ var type = encodedPacket.charAt(0);
+ if (type === "b") {
+ return {
+ type: "message",
+ data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
+ };
+ }
+ var packetType = PACKET_TYPES_REVERSE[type];
+ if (!packetType) {
+ return ERROR_PACKET;
+ }
+ return encodedPacket.length > 1 ? {
+ type: PACKET_TYPES_REVERSE[type],
+ data: encodedPacket.substring(1)
+ } : {
+ type: PACKET_TYPES_REVERSE[type]
+ };
+ };
+ var decodeBase64Packet = function decodeBase64Packet(data, binaryType) {
+ if (withNativeArrayBuffer$1) {
+ var decoded = decode$1(data);
+ return mapBinary(decoded, binaryType);
+ } else {
+ return {
+ base64: true,
+ data: data
+ }; // fallback for old browsers
+ }
+ };
+ var mapBinary = function mapBinary(data, binaryType) {
+ switch (binaryType) {
+ case "blob":
+ if (data instanceof Blob) {
+ // from WebSocket + binaryType "blob"
+ return data;
+ } else {
+ // from HTTP long-polling or WebTransport
+ return new Blob([data]);
+ }
+ case "arraybuffer":
+ default:
+ if (data instanceof ArrayBuffer) {
+ // from HTTP long-polling (base64) or WebSocket + binaryType "arraybuffer"
+ return data;
+ } else {
+ // from WebTransport (Uint8Array)
+ return data.buffer;
+ }
+ }
+ };
+
+ var SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
+ var encodePayload = function encodePayload(packets, callback) {
+ // some packets may be added to the array while encoding, so the initial length must be saved
+ var length = packets.length;
+ var encodedPackets = new Array(length);
+ var count = 0;
+ packets.forEach(function (packet, i) {
+ // force base64 encoding for binary packets
+ encodePacket(packet, false, function (encodedPacket) {
+ encodedPackets[i] = encodedPacket;
+ if (++count === length) {
+ callback(encodedPackets.join(SEPARATOR));
+ }
+ });
+ });
+ };
+ var decodePayload = function decodePayload(encodedPayload, binaryType) {
+ var encodedPackets = encodedPayload.split(SEPARATOR);
+ var packets = [];
+ for (var i = 0; i < encodedPackets.length; i++) {
+ var decodedPacket = decodePacket(encodedPackets[i], binaryType);
+ packets.push(decodedPacket);
+ if (decodedPacket.type === "error") {
+ break;
+ }
+ }
+ return packets;
+ };
+ function createPacketEncoderStream() {
+ return new TransformStream({
+ transform: function transform(packet, controller) {
+ encodePacketToBinary(packet, function (encodedPacket) {
+ var payloadLength = encodedPacket.length;
+ var header;
+ // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length
+ if (payloadLength < 126) {
+ header = new Uint8Array(1);
+ new DataView(header.buffer).setUint8(0, payloadLength);
+ } else if (payloadLength < 65536) {
+ header = new Uint8Array(3);
+ var view = new DataView(header.buffer);
+ view.setUint8(0, 126);
+ view.setUint16(1, payloadLength);
+ } else {
+ header = new Uint8Array(9);
+ var _view = new DataView(header.buffer);
+ _view.setUint8(0, 127);
+ _view.setBigUint64(1, BigInt(payloadLength));
+ }
+ // first bit indicates whether the payload is plain text (0) or binary (1)
+ if (packet.data && typeof packet.data !== "string") {
+ header[0] |= 0x80;
+ }
+ controller.enqueue(header);
+ controller.enqueue(encodedPacket);
+ });
+ }
+ });
+ }
+ var TEXT_DECODER;
+ function totalLength(chunks) {
+ return chunks.reduce(function (acc, chunk) {
+ return acc + chunk.length;
+ }, 0);
+ }
+ function concatChunks(chunks, size) {
+ if (chunks[0].length === size) {
+ return chunks.shift();
+ }
+ var buffer = new Uint8Array(size);
+ var j = 0;
+ for (var i = 0; i < size; i++) {
+ buffer[i] = chunks[0][j++];
+ if (j === chunks[0].length) {
+ chunks.shift();
+ j = 0;
+ }
+ }
+ if (chunks.length && j < chunks[0].length) {
+ chunks[0] = chunks[0].slice(j);
+ }
+ return buffer;
+ }
+ function createPacketDecoderStream(maxPayload, binaryType) {
+ if (!TEXT_DECODER) {
+ TEXT_DECODER = new TextDecoder();
+ }
+ var chunks = [];
+ var state = 0 /* State.READ_HEADER */;
+ var expectedLength = -1;
+ var isBinary = false;
+ return new TransformStream({
+ transform: function transform(chunk, controller) {
+ chunks.push(chunk);
+ while (true) {
+ if (state === 0 /* State.READ_HEADER */) {
+ if (totalLength(chunks) < 1) {
+ break;
+ }
+ var header = concatChunks(chunks, 1);
+ isBinary = (header[0] & 0x80) === 0x80;
+ expectedLength = header[0] & 0x7f;
+ if (expectedLength < 126) {
+ state = 3 /* State.READ_PAYLOAD */;
+ } else if (expectedLength === 126) {
+ state = 1 /* State.READ_EXTENDED_LENGTH_16 */;
+ } else {
+ state = 2 /* State.READ_EXTENDED_LENGTH_64 */;
+ }
+ } else if (state === 1 /* State.READ_EXTENDED_LENGTH_16 */) {
+ if (totalLength(chunks) < 2) {
+ break;
+ }
+ var headerArray = concatChunks(chunks, 2);
+ expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);
+ state = 3 /* State.READ_PAYLOAD */;
+ } else if (state === 2 /* State.READ_EXTENDED_LENGTH_64 */) {
+ if (totalLength(chunks) < 8) {
+ break;
+ }
+ var _headerArray = concatChunks(chunks, 8);
+ var view = new DataView(_headerArray.buffer, _headerArray.byteOffset, _headerArray.length);
+ var n = view.getUint32(0);
+ if (n > Math.pow(2, 53 - 32) - 1) {
+ // the maximum safe integer in JavaScript is 2^53 - 1
+ controller.enqueue(ERROR_PACKET);
+ break;
+ }
+ expectedLength = n * Math.pow(2, 32) + view.getUint32(4);
+ state = 3 /* State.READ_PAYLOAD */;
+ } else {
+ if (totalLength(chunks) < expectedLength) {
+ break;
+ }
+ var data = concatChunks(chunks, expectedLength);
+ controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));
+ state = 0 /* State.READ_HEADER */;
+ }
+ if (expectedLength === 0 || expectedLength > maxPayload) {
+ controller.enqueue(ERROR_PACKET);
+ break;
+ }
+ }
+ }
+ });
+ }
+ var protocol$1 = 4;
+
+ /**
+ * Initialize a new `Emitter`.
+ *
+ * @api public
+ */
+
+ function Emitter(obj) {
+ if (obj) return mixin(obj);
+ }
+
+ /**
+ * Mixin the emitter properties.
+ *
+ * @param {Object} obj
+ * @return {Object}
+ * @api private
+ */
+
+ function mixin(obj) {
+ for (var key in Emitter.prototype) {
+ obj[key] = Emitter.prototype[key];
+ }
+ return obj;
+ }
+
+ /**
+ * Listen on the given `event` with `fn`.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+ Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
+ this._callbacks = this._callbacks || {};
+ (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
+ return this;
+ };
+
+ /**
+ * Adds an `event` listener that will be invoked a single
+ * time then automatically removed.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+ Emitter.prototype.once = function (event, fn) {
+ function on() {
+ this.off(event, on);
+ fn.apply(this, arguments);
+ }
+ on.fn = fn;
+ this.on(event, on);
+ return this;
+ };
+
+ /**
+ * Remove the given callback for `event` or all
+ * registered callbacks.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+ Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
+ this._callbacks = this._callbacks || {};
+
+ // all
+ if (0 == arguments.length) {
+ this._callbacks = {};
+ return this;
+ }
+
+ // specific event
+ var callbacks = this._callbacks['$' + event];
+ if (!callbacks) return this;
+
+ // remove all handlers
+ if (1 == arguments.length) {
+ delete this._callbacks['$' + event];
+ return this;
+ }
+
+ // remove specific handler
+ var cb;
+ for (var i = 0; i < callbacks.length; i++) {
+ cb = callbacks[i];
+ if (cb === fn || cb.fn === fn) {
+ callbacks.splice(i, 1);
+ break;
+ }
+ }
+
+ // Remove event specific arrays for event types that no
+ // one is subscribed for to avoid memory leak.
+ if (callbacks.length === 0) {
+ delete this._callbacks['$' + event];
+ }
+ return this;
+ };
+
+ /**
+ * Emit `event` with the given args.
+ *
+ * @param {String} event
+ * @param {Mixed} ...
+ * @return {Emitter}
+ */
+
+ Emitter.prototype.emit = function (event) {
+ this._callbacks = this._callbacks || {};
+ var args = new Array(arguments.length - 1),
+ callbacks = this._callbacks['$' + event];
+ for (var i = 1; i < arguments.length; i++) {
+ args[i - 1] = arguments[i];
+ }
+ if (callbacks) {
+ callbacks = callbacks.slice(0);
+ for (var i = 0, len = callbacks.length; i < len; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ return this;
+ };
+
+ // alias used for reserved events (protected method)
+ Emitter.prototype.emitReserved = Emitter.prototype.emit;
+
+ /**
+ * Return array of callbacks for `event`.
+ *
+ * @param {String} event
+ * @return {Array}
+ * @api public
+ */
+
+ Emitter.prototype.listeners = function (event) {
+ this._callbacks = this._callbacks || {};
+ return this._callbacks['$' + event] || [];
+ };
+
+ /**
+ * Check if this emitter has `event` handlers.
+ *
+ * @param {String} event
+ * @return {Boolean}
+ * @api public
+ */
+
+ Emitter.prototype.hasListeners = function (event) {
+ return !!this.listeners(event).length;
+ };
+
+ var nextTick = function () {
+ var isPromiseAvailable = typeof Promise === "function" && typeof Promise.resolve === "function";
+ if (isPromiseAvailable) {
+ return function (cb) {
+ return Promise.resolve().then(cb);
+ };
+ } else {
+ return function (cb, setTimeoutFn) {
+ return setTimeoutFn(cb, 0);
+ };
+ }
+ }();
+ var globalThisShim = function () {
+ if (typeof self !== "undefined") {
+ return self;
+ } else if (typeof window !== "undefined") {
+ return window;
+ } else {
+ return Function("return this")();
+ }
+ }();
+ var defaultBinaryType = "arraybuffer";
+ function createCookieJar() {}
+
+ function pick(obj) {
+ for (var _len = arguments.length, attr = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ attr[_key - 1] = arguments[_key];
+ }
+ return attr.reduce(function (acc, k) {
+ if (obj.hasOwnProperty(k)) {
+ acc[k] = obj[k];
+ }
+ return acc;
+ }, {});
+ }
+ // Keep a reference to the real timeout functions so they can be used when overridden
+ var NATIVE_SET_TIMEOUT = globalThisShim.setTimeout;
+ var NATIVE_CLEAR_TIMEOUT = globalThisShim.clearTimeout;
+ function installTimerFunctions(obj, opts) {
+ if (opts.useNativeTimers) {
+ obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThisShim);
+ obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThisShim);
+ } else {
+ obj.setTimeoutFn = globalThisShim.setTimeout.bind(globalThisShim);
+ obj.clearTimeoutFn = globalThisShim.clearTimeout.bind(globalThisShim);
+ }
+ }
+ // base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)
+ var BASE64_OVERHEAD = 1.33;
+ // we could also have used `new Blob([obj]).size`, but it isn't supported in IE9
+ function byteLength(obj) {
+ if (typeof obj === "string") {
+ return utf8Length(obj);
+ }
+ // arraybuffer or blob
+ return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);
+ }
+ function utf8Length(str) {
+ var c = 0,
+ length = 0;
+ for (var i = 0, l = str.length; i < l; i++) {
+ c = str.charCodeAt(i);
+ if (c < 0x80) {
+ length += 1;
+ } else if (c < 0x800) {
+ length += 2;
+ } else if (c < 0xd800 || c >= 0xe000) {
+ length += 3;
+ } else {
+ i++;
+ length += 4;
+ }
+ }
+ return length;
+ }
+ /**
+ * Generates a random 8-characters string.
+ */
+ function randomString() {
+ return Date.now().toString(36).substring(3) + Math.random().toString(36).substring(2, 5);
+ }
+
+ // imported from https://github.com/galkn/querystring
+ /**
+ * Compiles a querystring
+ * Returns string representation of the object
+ *
+ * @param {Object}
+ * @api private
+ */
+ function encode(obj) {
+ var str = '';
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) {
+ if (str.length) str += '&';
+ str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+ }
+ }
+ return str;
+ }
+ /**
+ * Parses a simple querystring into an object
+ *
+ * @param {String} qs
+ * @api private
+ */
+ function decode(qs) {
+ var qry = {};
+ var pairs = qs.split('&');
+ for (var i = 0, l = pairs.length; i < l; i++) {
+ var pair = pairs[i].split('=');
+ qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+ }
+ return qry;
+ }
+
+ var TransportError = /*#__PURE__*/function (_Error) {
+ function TransportError(reason, description, context) {
+ var _this;
+ _this = _Error.call(this, reason) || this;
+ _this.description = description;
+ _this.context = context;
+ _this.type = "TransportError";
+ return _this;
+ }
+ _inheritsLoose(TransportError, _Error);
+ return TransportError;
+ }( /*#__PURE__*/_wrapNativeSuper(Error));
+ var Transport = /*#__PURE__*/function (_Emitter) {
+ /**
+ * Transport abstract constructor.
+ *
+ * @param {Object} opts - options
+ * @protected
+ */
+ function Transport(opts) {
+ var _this2;
+ _this2 = _Emitter.call(this) || this;
+ _this2.writable = false;
+ installTimerFunctions(_this2, opts);
+ _this2.opts = opts;
+ _this2.query = opts.query;
+ _this2.socket = opts.socket;
+ _this2.supportsBinary = !opts.forceBase64;
+ return _this2;
+ }
+ /**
+ * Emits an error.
+ *
+ * @param {String} reason
+ * @param description
+ * @param context - the error context
+ * @return {Transport} for chaining
+ * @protected
+ */
+ _inheritsLoose(Transport, _Emitter);
+ var _proto = Transport.prototype;
+ _proto.onError = function onError(reason, description, context) {
+ _Emitter.prototype.emitReserved.call(this, "error", new TransportError(reason, description, context));
+ return this;
+ }
+ /**
+ * Opens the transport.
+ */;
+ _proto.open = function open() {
+ this.readyState = "opening";
+ this.doOpen();
+ return this;
+ }
+ /**
+ * Closes the transport.
+ */;
+ _proto.close = function close() {
+ if (this.readyState === "opening" || this.readyState === "open") {
+ this.doClose();
+ this.onClose();
+ }
+ return this;
+ }
+ /**
+ * Sends multiple packets.
+ *
+ * @param {Array} packets
+ */;
+ _proto.send = function send(packets) {
+ if (this.readyState === "open") {
+ this.write(packets);
+ }
+ }
+ /**
+ * Called upon open
+ *
+ * @protected
+ */;
+ _proto.onOpen = function onOpen() {
+ this.readyState = "open";
+ this.writable = true;
+ _Emitter.prototype.emitReserved.call(this, "open");
+ }
+ /**
+ * Called with data.
+ *
+ * @param {String} data
+ * @protected
+ */;
+ _proto.onData = function onData(data) {
+ var packet = decodePacket(data, this.socket.binaryType);
+ this.onPacket(packet);
+ }
+ /**
+ * Called with a decoded packet.
+ *
+ * @protected
+ */;
+ _proto.onPacket = function onPacket(packet) {
+ _Emitter.prototype.emitReserved.call(this, "packet", packet);
+ }
+ /**
+ * Called upon close.
+ *
+ * @protected
+ */;
+ _proto.onClose = function onClose(details) {
+ this.readyState = "closed";
+ _Emitter.prototype.emitReserved.call(this, "close", details);
+ }
+ /**
+ * Pauses the transport, in order not to lose packets during an upgrade.
+ *
+ * @param onPause
+ */;
+ _proto.pause = function pause(onPause) {};
+ _proto.createUri = function createUri(schema) {
+ var query = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ return schema + "://" + this._hostname() + this._port() + this.opts.path + this._query(query);
+ };
+ _proto._hostname = function _hostname() {
+ var hostname = this.opts.hostname;
+ return hostname.indexOf(":") === -1 ? hostname : "[" + hostname + "]";
+ };
+ _proto._port = function _port() {
+ if (this.opts.port && (this.opts.secure && Number(this.opts.port !== 443) || !this.opts.secure && Number(this.opts.port) !== 80)) {
+ return ":" + this.opts.port;
+ } else {
+ return "";
+ }
+ };
+ _proto._query = function _query(query) {
+ var encodedQuery = encode(query);
+ return encodedQuery.length ? "?" + encodedQuery : "";
+ };
+ return Transport;
+ }(Emitter);
+
+ var Polling = /*#__PURE__*/function (_Transport) {
+ function Polling() {
+ var _this;
+ _this = _Transport.apply(this, arguments) || this;
+ _this._polling = false;
+ return _this;
+ }
+ _inheritsLoose(Polling, _Transport);
+ var _proto = Polling.prototype;
+ /**
+ * Opens the socket (triggers polling). We write a PING message to determine
+ * when the transport is open.
+ *
+ * @protected
+ */
+ _proto.doOpen = function doOpen() {
+ this._poll();
+ }
+ /**
+ * Pauses polling.
+ *
+ * @param {Function} onPause - callback upon buffers are flushed and transport is paused
+ * @package
+ */;
+ _proto.pause = function pause(onPause) {
+ var _this2 = this;
+ this.readyState = "pausing";
+ var pause = function pause() {
+ _this2.readyState = "paused";
+ onPause();
+ };
+ if (this._polling || !this.writable) {
+ var total = 0;
+ if (this._polling) {
+ total++;
+ this.once("pollComplete", function () {
+ --total || pause();
+ });
+ }
+ if (!this.writable) {
+ total++;
+ this.once("drain", function () {
+ --total || pause();
+ });
+ }
+ } else {
+ pause();
+ }
+ }
+ /**
+ * Starts polling cycle.
+ *
+ * @private
+ */;
+ _proto._poll = function _poll() {
+ this._polling = true;
+ this.doPoll();
+ this.emitReserved("poll");
+ }
+ /**
+ * Overloads onData to detect payloads.
+ *
+ * @protected
+ */;
+ _proto.onData = function onData(data) {
+ var _this3 = this;
+ var callback = function callback(packet) {
+ // if its the first message we consider the transport open
+ if ("opening" === _this3.readyState && packet.type === "open") {
+ _this3.onOpen();
+ }
+ // if its a close packet, we close the ongoing requests
+ if ("close" === packet.type) {
+ _this3.onClose({
+ description: "transport closed by the server"
+ });
+ return false;
+ }
+ // otherwise bypass onData and handle the message
+ _this3.onPacket(packet);
+ };
+ // decode payload
+ decodePayload(data, this.socket.binaryType).forEach(callback);
+ // if an event did not trigger closing
+ if ("closed" !== this.readyState) {
+ // if we got data we're not polling
+ this._polling = false;
+ this.emitReserved("pollComplete");
+ if ("open" === this.readyState) {
+ this._poll();
+ }
+ }
+ }
+ /**
+ * For polling, send a close packet.
+ *
+ * @protected
+ */;
+ _proto.doClose = function doClose() {
+ var _this4 = this;
+ var close = function close() {
+ _this4.write([{
+ type: "close"
+ }]);
+ };
+ if ("open" === this.readyState) {
+ close();
+ } else {
+ // in case we're trying to close while
+ // handshaking is in progress (GH-164)
+ this.once("open", close);
+ }
+ }
+ /**
+ * Writes a packets payload.
+ *
+ * @param {Array} packets - data packets
+ * @protected
+ */;
+ _proto.write = function write(packets) {
+ var _this5 = this;
+ this.writable = false;
+ encodePayload(packets, function (data) {
+ _this5.doWrite(data, function () {
+ _this5.writable = true;
+ _this5.emitReserved("drain");
+ });
+ });
+ }
+ /**
+ * Generates uri for connection.
+ *
+ * @private
+ */;
+ _proto.uri = function uri() {
+ var schema = this.opts.secure ? "https" : "http";
+ var query = this.query || {};
+ // cache busting is forced
+ if (false !== this.opts.timestampRequests) {
+ query[this.opts.timestampParam] = randomString();
+ }
+ if (!this.supportsBinary && !query.sid) {
+ query.b64 = 1;
+ }
+ return this.createUri(schema, query);
+ };
+ return _createClass(Polling, [{
+ key: "name",
+ get: function get() {
+ return "polling";
+ }
+ }]);
+ }(Transport);
+
+ // imported from https://github.com/component/has-cors
+ var value = false;
+ try {
+ value = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest();
+ } catch (err) {
+ // if XMLHttp support is disabled in IE then it will throw
+ // when trying to create
+ }
+ var hasCORS = value;
+
+ function empty() {}
+ var BaseXHR = /*#__PURE__*/function (_Polling) {
+ /**
+ * XHR Polling constructor.
+ *
+ * @param {Object} opts
+ * @package
+ */
+ function BaseXHR(opts) {
+ var _this;
+ _this = _Polling.call(this, opts) || this;
+ if (typeof location !== "undefined") {
+ var isSSL = "https:" === location.protocol;
+ var port = location.port;
+ // some user agents have empty `location.port`
+ if (!port) {
+ port = isSSL ? "443" : "80";
+ }
+ _this.xd = typeof location !== "undefined" && opts.hostname !== location.hostname || port !== opts.port;
+ }
+ return _this;
+ }
+ /**
+ * Sends data.
+ *
+ * @param {String} data to send.
+ * @param {Function} called upon flush.
+ * @private
+ */
+ _inheritsLoose(BaseXHR, _Polling);
+ var _proto = BaseXHR.prototype;
+ _proto.doWrite = function doWrite(data, fn) {
+ var _this2 = this;
+ var req = this.request({
+ method: "POST",
+ data: data
+ });
+ req.on("success", fn);
+ req.on("error", function (xhrStatus, context) {
+ _this2.onError("xhr post error", xhrStatus, context);
+ });
+ }
+ /**
+ * Starts a poll cycle.
+ *
+ * @private
+ */;
+ _proto.doPoll = function doPoll() {
+ var _this3 = this;
+ var req = this.request();
+ req.on("data", this.onData.bind(this));
+ req.on("error", function (xhrStatus, context) {
+ _this3.onError("xhr poll error", xhrStatus, context);
+ });
+ this.pollXhr = req;
+ };
+ return BaseXHR;
+ }(Polling);
+ var Request = /*#__PURE__*/function (_Emitter) {
+ /**
+ * Request constructor
+ *
+ * @param {Object} options
+ * @package
+ */
+ function Request(createRequest, uri, opts) {
+ var _this4;
+ _this4 = _Emitter.call(this) || this;
+ _this4.createRequest = createRequest;
+ installTimerFunctions(_this4, opts);
+ _this4._opts = opts;
+ _this4._method = opts.method || "GET";
+ _this4._uri = uri;
+ _this4._data = undefined !== opts.data ? opts.data : null;
+ _this4._create();
+ return _this4;
+ }
+ /**
+ * Creates the XHR object and sends the request.
+ *
+ * @private
+ */
+ _inheritsLoose(Request, _Emitter);
+ var _proto2 = Request.prototype;
+ _proto2._create = function _create() {
+ var _this5 = this;
+ var _a;
+ var opts = pick(this._opts, "agent", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "autoUnref");
+ opts.xdomain = !!this._opts.xd;
+ var xhr = this._xhr = this.createRequest(opts);
+ try {
+ xhr.open(this._method, this._uri, true);
+ try {
+ if (this._opts.extraHeaders) {
+ // @ts-ignore
+ xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
+ for (var i in this._opts.extraHeaders) {
+ if (this._opts.extraHeaders.hasOwnProperty(i)) {
+ xhr.setRequestHeader(i, this._opts.extraHeaders[i]);
+ }
+ }
+ }
+ } catch (e) {}
+ if ("POST" === this._method) {
+ try {
+ xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
+ } catch (e) {}
+ }
+ try {
+ xhr.setRequestHeader("Accept", "*/*");
+ } catch (e) {}
+ (_a = this._opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);
+ // ie6 check
+ if ("withCredentials" in xhr) {
+ xhr.withCredentials = this._opts.withCredentials;
+ }
+ if (this._opts.requestTimeout) {
+ xhr.timeout = this._opts.requestTimeout;
+ }
+ xhr.onreadystatechange = function () {
+ var _a;
+ if (xhr.readyState === 3) {
+ (_a = _this5._opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(
+ // @ts-ignore
+ xhr.getResponseHeader("set-cookie"));
+ }
+ if (4 !== xhr.readyState) return;
+ if (200 === xhr.status || 1223 === xhr.status) {
+ _this5._onLoad();
+ } else {
+ // make sure the `error` event handler that's user-set
+ // does not throw in the same tick and gets caught here
+ _this5.setTimeoutFn(function () {
+ _this5._onError(typeof xhr.status === "number" ? xhr.status : 0);
+ }, 0);
+ }
+ };
+ xhr.send(this._data);
+ } catch (e) {
+ // Need to defer since .create() is called directly from the constructor
+ // and thus the 'error' event can only be only bound *after* this exception
+ // occurs. Therefore, also, we cannot throw here at all.
+ this.setTimeoutFn(function () {
+ _this5._onError(e);
+ }, 0);
+ return;
+ }
+ if (typeof document !== "undefined") {
+ this._index = Request.requestsCount++;
+ Request.requests[this._index] = this;
+ }
+ }
+ /**
+ * Called upon error.
+ *
+ * @private
+ */;
+ _proto2._onError = function _onError(err) {
+ this.emitReserved("error", err, this._xhr);
+ this._cleanup(true);
+ }
+ /**
+ * Cleans up house.
+ *
+ * @private
+ */;
+ _proto2._cleanup = function _cleanup(fromError) {
+ if ("undefined" === typeof this._xhr || null === this._xhr) {
+ return;
+ }
+ this._xhr.onreadystatechange = empty;
+ if (fromError) {
+ try {
+ this._xhr.abort();
+ } catch (e) {}
+ }
+ if (typeof document !== "undefined") {
+ delete Request.requests[this._index];
+ }
+ this._xhr = null;
+ }
+ /**
+ * Called upon load.
+ *
+ * @private
+ */;
+ _proto2._onLoad = function _onLoad() {
+ var data = this._xhr.responseText;
+ if (data !== null) {
+ this.emitReserved("data", data);
+ this.emitReserved("success");
+ this._cleanup();
+ }
+ }
+ /**
+ * Aborts the request.
+ *
+ * @package
+ */;
+ _proto2.abort = function abort() {
+ this._cleanup();
+ };
+ return Request;
+ }(Emitter);
+ Request.requestsCount = 0;
+ Request.requests = {};
+ /**
+ * Aborts pending requests when unloading the window. This is needed to prevent
+ * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+ * emitted.
+ */
+ if (typeof document !== "undefined") {
+ // @ts-ignore
+ if (typeof attachEvent === "function") {
+ // @ts-ignore
+ attachEvent("onunload", unloadHandler);
+ } else if (typeof addEventListener === "function") {
+ var terminationEvent = "onpagehide" in globalThisShim ? "pagehide" : "unload";
+ addEventListener(terminationEvent, unloadHandler, false);
+ }
+ }
+ function unloadHandler() {
+ for (var i in Request.requests) {
+ if (Request.requests.hasOwnProperty(i)) {
+ Request.requests[i].abort();
+ }
+ }
+ }
+ var hasXHR2 = function () {
+ var xhr = newRequest({
+ xdomain: false
+ });
+ return xhr && xhr.responseType !== null;
+ }();
+ /**
+ * HTTP long-polling based on the built-in `XMLHttpRequest` object.
+ *
+ * Usage: browser
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest
+ */
+ var XHR = /*#__PURE__*/function (_BaseXHR) {
+ function XHR(opts) {
+ var _this6;
+ _this6 = _BaseXHR.call(this, opts) || this;
+ var forceBase64 = opts && opts.forceBase64;
+ _this6.supportsBinary = hasXHR2 && !forceBase64;
+ return _this6;
+ }
+ _inheritsLoose(XHR, _BaseXHR);
+ var _proto3 = XHR.prototype;
+ _proto3.request = function request() {
+ var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ _extends(opts, {
+ xd: this.xd
+ }, this.opts);
+ return new Request(newRequest, this.uri(), opts);
+ };
+ return XHR;
+ }(BaseXHR);
+ function newRequest(opts) {
+ var xdomain = opts.xdomain;
+ // XMLHttpRequest can be disabled on IE
+ try {
+ if ("undefined" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+ return new XMLHttpRequest();
+ }
+ } catch (e) {}
+ if (!xdomain) {
+ try {
+ return new globalThisShim[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP");
+ } catch (e) {}
+ }
+ }
+
+ // detect ReactNative environment
+ var isReactNative = typeof navigator !== "undefined" && typeof navigator.product === "string" && navigator.product.toLowerCase() === "reactnative";
+ var BaseWS = /*#__PURE__*/function (_Transport) {
+ function BaseWS() {
+ return _Transport.apply(this, arguments) || this;
+ }
+ _inheritsLoose(BaseWS, _Transport);
+ var _proto = BaseWS.prototype;
+ _proto.doOpen = function doOpen() {
+ var uri = this.uri();
+ var protocols = this.opts.protocols;
+ // React Native only supports the 'headers' option, and will print a warning if anything else is passed
+ var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress", "protocolVersion", "origin", "maxPayload", "family", "checkServerIdentity");
+ if (this.opts.extraHeaders) {
+ opts.headers = this.opts.extraHeaders;
+ }
+ try {
+ this.ws = this.createSocket(uri, protocols, opts);
+ } catch (err) {
+ return this.emitReserved("error", err);
+ }
+ this.ws.binaryType = this.socket.binaryType;
+ this.addEventListeners();
+ }
+ /**
+ * Adds event listeners to the socket
+ *
+ * @private
+ */;
+ _proto.addEventListeners = function addEventListeners() {
+ var _this = this;
+ this.ws.onopen = function () {
+ if (_this.opts.autoUnref) {
+ _this.ws._socket.unref();
+ }
+ _this.onOpen();
+ };
+ this.ws.onclose = function (closeEvent) {
+ return _this.onClose({
+ description: "websocket connection closed",
+ context: closeEvent
+ });
+ };
+ this.ws.onmessage = function (ev) {
+ return _this.onData(ev.data);
+ };
+ this.ws.onerror = function (e) {
+ return _this.onError("websocket error", e);
+ };
+ };
+ _proto.write = function write(packets) {
+ var _this2 = this;
+ this.writable = false;
+ // encodePacket efficient as it uses WS framing
+ // no need for encodePayload
+ var _loop = function _loop() {
+ var packet = packets[i];
+ var lastPacket = i === packets.length - 1;
+ encodePacket(packet, _this2.supportsBinary, function (data) {
+ // Sometimes the websocket has already been closed but the browser didn't
+ // have a chance of informing us about it yet, in that case send will
+ // throw an error
+ try {
+ _this2.doWrite(packet, data);
+ } catch (e) {}
+ if (lastPacket) {
+ // fake drain
+ // defer to next tick to allow Socket to clear writeBuffer
+ nextTick(function () {
+ _this2.writable = true;
+ _this2.emitReserved("drain");
+ }, _this2.setTimeoutFn);
+ }
+ });
+ };
+ for (var i = 0; i < packets.length; i++) {
+ _loop();
+ }
+ };
+ _proto.doClose = function doClose() {
+ if (typeof this.ws !== "undefined") {
+ this.ws.onerror = function () {};
+ this.ws.close();
+ this.ws = null;
+ }
+ }
+ /**
+ * Generates uri for connection.
+ *
+ * @private
+ */;
+ _proto.uri = function uri() {
+ var schema = this.opts.secure ? "wss" : "ws";
+ var query = this.query || {};
+ // append timestamp to URI
+ if (this.opts.timestampRequests) {
+ query[this.opts.timestampParam] = randomString();
+ }
+ // communicate binary support capabilities
+ if (!this.supportsBinary) {
+ query.b64 = 1;
+ }
+ return this.createUri(schema, query);
+ };
+ return _createClass(BaseWS, [{
+ key: "name",
+ get: function get() {
+ return "websocket";
+ }
+ }]);
+ }(Transport);
+ var WebSocketCtor = globalThisShim.WebSocket || globalThisShim.MozWebSocket;
+ /**
+ * WebSocket transport based on the built-in `WebSocket` object.
+ *
+ * Usage: browser, Node.js (since v21), Deno, Bun
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket
+ * @see https://caniuse.com/mdn-api_websocket
+ * @see https://nodejs.org/api/globals.html#websocket
+ */
+ var WS = /*#__PURE__*/function (_BaseWS) {
+ function WS() {
+ return _BaseWS.apply(this, arguments) || this;
+ }
+ _inheritsLoose(WS, _BaseWS);
+ var _proto2 = WS.prototype;
+ _proto2.createSocket = function createSocket(uri, protocols, opts) {
+ return !isReactNative ? protocols ? new WebSocketCtor(uri, protocols) : new WebSocketCtor(uri) : new WebSocketCtor(uri, protocols, opts);
+ };
+ _proto2.doWrite = function doWrite(_packet, data) {
+ this.ws.send(data);
+ };
+ return WS;
+ }(BaseWS);
+
+ /**
+ * WebTransport transport based on the built-in `WebTransport` object.
+ *
+ * Usage: browser, Node.js (with the `@fails-components/webtransport` package)
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/WebTransport
+ * @see https://caniuse.com/webtransport
+ */
+ var WT = /*#__PURE__*/function (_Transport) {
+ function WT() {
+ return _Transport.apply(this, arguments) || this;
+ }
+ _inheritsLoose(WT, _Transport);
+ var _proto = WT.prototype;
+ _proto.doOpen = function doOpen() {
+ var _this = this;
+ try {
+ // @ts-ignore
+ this._transport = new WebTransport(this.createUri("https"), this.opts.transportOptions[this.name]);
+ } catch (err) {
+ return this.emitReserved("error", err);
+ }
+ this._transport.closed.then(function () {
+ _this.onClose();
+ })["catch"](function (err) {
+ _this.onError("webtransport error", err);
+ });
+ // note: we could have used async/await, but that would require some additional polyfills
+ this._transport.ready.then(function () {
+ _this._transport.createBidirectionalStream().then(function (stream) {
+ var decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, _this.socket.binaryType);
+ var reader = stream.readable.pipeThrough(decoderStream).getReader();
+ var encoderStream = createPacketEncoderStream();
+ encoderStream.readable.pipeTo(stream.writable);
+ _this._writer = encoderStream.writable.getWriter();
+ var read = function read() {
+ reader.read().then(function (_ref) {
+ var done = _ref.done,
+ value = _ref.value;
+ if (done) {
+ return;
+ }
+ _this.onPacket(value);
+ read();
+ })["catch"](function (err) {});
+ };
+ read();
+ var packet = {
+ type: "open"
+ };
+ if (_this.query.sid) {
+ packet.data = "{\"sid\":\"".concat(_this.query.sid, "\"}");
+ }
+ _this._writer.write(packet).then(function () {
+ return _this.onOpen();
+ });
+ });
+ });
+ };
+ _proto.write = function write(packets) {
+ var _this2 = this;
+ this.writable = false;
+ var _loop = function _loop() {
+ var packet = packets[i];
+ var lastPacket = i === packets.length - 1;
+ _this2._writer.write(packet).then(function () {
+ if (lastPacket) {
+ nextTick(function () {
+ _this2.writable = true;
+ _this2.emitReserved("drain");
+ }, _this2.setTimeoutFn);
+ }
+ });
+ };
+ for (var i = 0; i < packets.length; i++) {
+ _loop();
+ }
+ };
+ _proto.doClose = function doClose() {
+ var _a;
+ (_a = this._transport) === null || _a === void 0 ? void 0 : _a.close();
+ };
+ return _createClass(WT, [{
+ key: "name",
+ get: function get() {
+ return "webtransport";
+ }
+ }]);
+ }(Transport);
+
+ var transports = {
+ websocket: WS,
+ webtransport: WT,
+ polling: XHR
+ };
+
+ // imported from https://github.com/galkn/parseuri
+ /**
+ * Parses a URI
+ *
+ * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.
+ *
+ * See:
+ * - https://developer.mozilla.org/en-US/docs/Web/API/URL
+ * - https://caniuse.com/url
+ * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B
+ *
+ * History of the parse() method:
+ * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c
+ * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3
+ * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242
+ *
+ * @author Steven Levithan (MIT license)
+ * @api private
+ */
+ var re = /^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+ var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'];
+ function parse(str) {
+ if (str.length > 8000) {
+ throw "URI too long";
+ }
+ var src = str,
+ b = str.indexOf('['),
+ e = str.indexOf(']');
+ if (b != -1 && e != -1) {
+ str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+ }
+ var m = re.exec(str || ''),
+ uri = {},
+ i = 14;
+ while (i--) {
+ uri[parts[i]] = m[i] || '';
+ }
+ if (b != -1 && e != -1) {
+ uri.source = src;
+ uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+ uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+ uri.ipv6uri = true;
+ }
+ uri.pathNames = pathNames(uri, uri['path']);
+ uri.queryKey = queryKey(uri, uri['query']);
+ return uri;
+ }
+ function pathNames(obj, path) {
+ var regx = /\/{2,9}/g,
+ names = path.replace(regx, "/").split("/");
+ if (path.slice(0, 1) == '/' || path.length === 0) {
+ names.splice(0, 1);
+ }
+ if (path.slice(-1) == '/') {
+ names.splice(names.length - 1, 1);
+ }
+ return names;
+ }
+ function queryKey(uri, query) {
+ var data = {};
+ query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {
+ if ($1) {
+ data[$1] = $2;
+ }
+ });
+ return data;
+ }
+
+ var withEventListeners = typeof addEventListener === "function" && typeof removeEventListener === "function";
+ var OFFLINE_EVENT_LISTENERS = [];
+ if (withEventListeners) {
+ // within a ServiceWorker, any event handler for the 'offline' event must be added on the initial evaluation of the
+ // script, so we create one single event listener here which will forward the event to the socket instances
+ addEventListener("offline", function () {
+ OFFLINE_EVENT_LISTENERS.forEach(function (listener) {
+ return listener();
+ });
+ }, false);
+ }
+ /**
+ * This class provides a WebSocket-like interface to connect to an Engine.IO server. The connection will be established
+ * with one of the available low-level transports, like HTTP long-polling, WebSocket or WebTransport.
+ *
+ * This class comes without upgrade mechanism, which means that it will keep the first low-level transport that
+ * successfully establishes the connection.
+ *
+ * In order to allow tree-shaking, there are no transports included, that's why the `transports` option is mandatory.
+ *
+ * @example
+ * import { SocketWithoutUpgrade, WebSocket } from "engine.io-client";
+ *
+ * const socket = new SocketWithoutUpgrade({
+ * transports: [WebSocket]
+ * });
+ *
+ * socket.on("open", () => {
+ * socket.send("hello");
+ * });
+ *
+ * @see SocketWithUpgrade
+ * @see Socket
+ */
+ var SocketWithoutUpgrade = /*#__PURE__*/function (_Emitter) {
+ /**
+ * Socket constructor.
+ *
+ * @param {String|Object} uri - uri or options
+ * @param {Object} opts - options
+ */
+ function SocketWithoutUpgrade(uri, opts) {
+ var _this;
+ _this = _Emitter.call(this) || this;
+ _this.binaryType = defaultBinaryType;
+ _this.writeBuffer = [];
+ _this._prevBufferLen = 0;
+ _this._pingInterval = -1;
+ _this._pingTimeout = -1;
+ _this._maxPayload = -1;
+ /**
+ * The expiration timestamp of the {@link _pingTimeoutTimer} object is tracked, in case the timer is throttled and the
+ * callback is not fired on time. This can happen for example when a laptop is suspended or when a phone is locked.
+ */
+ _this._pingTimeoutTime = Infinity;
+ if (uri && "object" === _typeof(uri)) {
+ opts = uri;
+ uri = null;
+ }
+ if (uri) {
+ var parsedUri = parse(uri);
+ opts.hostname = parsedUri.host;
+ opts.secure = parsedUri.protocol === "https" || parsedUri.protocol === "wss";
+ opts.port = parsedUri.port;
+ if (parsedUri.query) opts.query = parsedUri.query;
+ } else if (opts.host) {
+ opts.hostname = parse(opts.host).host;
+ }
+ installTimerFunctions(_this, opts);
+ _this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;
+ if (opts.hostname && !opts.port) {
+ // if no port is specified manually, use the protocol default
+ opts.port = _this.secure ? "443" : "80";
+ }
+ _this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
+ _this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? "443" : "80");
+ _this.transports = [];
+ _this._transportsByName = {};
+ opts.transports.forEach(function (t) {
+ var transportName = t.prototype.name;
+ _this.transports.push(transportName);
+ _this._transportsByName[transportName] = t;
+ });
+ _this.opts = _extends({
+ path: "/engine.io",
+ agent: false,
+ withCredentials: false,
+ upgrade: true,
+ timestampParam: "t",
+ rememberUpgrade: false,
+ addTrailingSlash: true,
+ rejectUnauthorized: true,
+ perMessageDeflate: {
+ threshold: 1024
+ },
+ transportOptions: {},
+ closeOnBeforeunload: false
+ }, opts);
+ _this.opts.path = _this.opts.path.replace(/\/$/, "") + (_this.opts.addTrailingSlash ? "/" : "");
+ if (typeof _this.opts.query === "string") {
+ _this.opts.query = decode(_this.opts.query);
+ }
+ if (withEventListeners) {
+ if (_this.opts.closeOnBeforeunload) {
+ // Firefox closes the connection when the "beforeunload" event is emitted but not Chrome. This event listener
+ // ensures every browser behaves the same (no "disconnect" event at the Socket.IO level when the page is
+ // closed/reloaded)
+ _this._beforeunloadEventListener = function () {
+ if (_this.transport) {
+ // silently close the transport
+ _this.transport.removeAllListeners();
+ _this.transport.close();
+ }
+ };
+ addEventListener("beforeunload", _this._beforeunloadEventListener, false);
+ }
+ if (_this.hostname !== "localhost") {
+ _this._offlineEventListener = function () {
+ _this._onClose("transport close", {
+ description: "network connection lost"
+ });
+ };
+ OFFLINE_EVENT_LISTENERS.push(_this._offlineEventListener);
+ }
+ }
+ if (_this.opts.withCredentials) {
+ _this._cookieJar = createCookieJar();
+ }
+ _this._open();
+ return _this;
+ }
+ /**
+ * Creates transport of the given type.
+ *
+ * @param {String} name - transport name
+ * @return {Transport}
+ * @private
+ */
+ _inheritsLoose(SocketWithoutUpgrade, _Emitter);
+ var _proto = SocketWithoutUpgrade.prototype;
+ _proto.createTransport = function createTransport(name) {
+ var query = _extends({}, this.opts.query);
+ // append engine.io protocol identifier
+ query.EIO = protocol$1;
+ // transport name
+ query.transport = name;
+ // session id if we already have one
+ if (this.id) query.sid = this.id;
+ var opts = _extends({}, this.opts, {
+ query: query,
+ socket: this,
+ hostname: this.hostname,
+ secure: this.secure,
+ port: this.port
+ }, this.opts.transportOptions[name]);
+ return new this._transportsByName[name](opts);
+ }
+ /**
+ * Initializes transport to use and starts probe.
+ *
+ * @private
+ */;
+ _proto._open = function _open() {
+ var _this2 = this;
+ if (this.transports.length === 0) {
+ // Emit error on next tick so it can be listened to
+ this.setTimeoutFn(function () {
+ _this2.emitReserved("error", "No transports available");
+ }, 0);
+ return;
+ }
+ var transportName = this.opts.rememberUpgrade && SocketWithoutUpgrade.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1 ? "websocket" : this.transports[0];
+ this.readyState = "opening";
+ var transport = this.createTransport(transportName);
+ transport.open();
+ this.setTransport(transport);
+ }
+ /**
+ * Sets the current transport. Disables the existing one (if any).
+ *
+ * @private
+ */;
+ _proto.setTransport = function setTransport(transport) {
+ var _this3 = this;
+ if (this.transport) {
+ this.transport.removeAllListeners();
+ }
+ // set up transport
+ this.transport = transport;
+ // set up transport listeners
+ transport.on("drain", this._onDrain.bind(this)).on("packet", this._onPacket.bind(this)).on("error", this._onError.bind(this)).on("close", function (reason) {
+ return _this3._onClose("transport close", reason);
+ });
+ }
+ /**
+ * Called when connection is deemed open.
+ *
+ * @private
+ */;
+ _proto.onOpen = function onOpen() {
+ this.readyState = "open";
+ SocketWithoutUpgrade.priorWebsocketSuccess = "websocket" === this.transport.name;
+ this.emitReserved("open");
+ this.flush();
+ }
+ /**
+ * Handles a packet.
+ *
+ * @private
+ */;
+ _proto._onPacket = function _onPacket(packet) {
+ if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
+ this.emitReserved("packet", packet);
+ // Socket is live - any packet counts
+ this.emitReserved("heartbeat");
+ switch (packet.type) {
+ case "open":
+ this.onHandshake(JSON.parse(packet.data));
+ break;
+ case "ping":
+ this._sendPacket("pong");
+ this.emitReserved("ping");
+ this.emitReserved("pong");
+ this._resetPingTimeout();
+ break;
+ case "error":
+ var err = new Error("server error");
+ // @ts-ignore
+ err.code = packet.data;
+ this._onError(err);
+ break;
+ case "message":
+ this.emitReserved("data", packet.data);
+ this.emitReserved("message", packet.data);
+ break;
+ }
+ }
+ }
+ /**
+ * Called upon handshake completion.
+ *
+ * @param {Object} data - handshake obj
+ * @private
+ */;
+ _proto.onHandshake = function onHandshake(data) {
+ this.emitReserved("handshake", data);
+ this.id = data.sid;
+ this.transport.query.sid = data.sid;
+ this._pingInterval = data.pingInterval;
+ this._pingTimeout = data.pingTimeout;
+ this._maxPayload = data.maxPayload;
+ this.onOpen();
+ // In case open handler closes socket
+ if ("closed" === this.readyState) return;
+ this._resetPingTimeout();
+ }
+ /**
+ * Sets and resets ping timeout timer based on server pings.
+ *
+ * @private
+ */;
+ _proto._resetPingTimeout = function _resetPingTimeout() {
+ var _this4 = this;
+ this.clearTimeoutFn(this._pingTimeoutTimer);
+ var delay = this._pingInterval + this._pingTimeout;
+ this._pingTimeoutTime = Date.now() + delay;
+ this._pingTimeoutTimer = this.setTimeoutFn(function () {
+ _this4._onClose("ping timeout");
+ }, delay);
+ if (this.opts.autoUnref) {
+ this._pingTimeoutTimer.unref();
+ }
+ }
+ /**
+ * Called on `drain` event
+ *
+ * @private
+ */;
+ _proto._onDrain = function _onDrain() {
+ this.writeBuffer.splice(0, this._prevBufferLen);
+ // setting prevBufferLen = 0 is very important
+ // for example, when upgrading, upgrade packet is sent over,
+ // and a nonzero prevBufferLen could cause problems on `drain`
+ this._prevBufferLen = 0;
+ if (0 === this.writeBuffer.length) {
+ this.emitReserved("drain");
+ } else {
+ this.flush();
+ }
+ }
+ /**
+ * Flush write buffers.
+ *
+ * @private
+ */;
+ _proto.flush = function flush() {
+ if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
+ var packets = this._getWritablePackets();
+ this.transport.send(packets);
+ // keep track of current length of writeBuffer
+ // splice writeBuffer and callbackBuffer on `drain`
+ this._prevBufferLen = packets.length;
+ this.emitReserved("flush");
+ }
+ }
+ /**
+ * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP
+ * long-polling)
+ *
+ * @private
+ */;
+ _proto._getWritablePackets = function _getWritablePackets() {
+ var shouldCheckPayloadSize = this._maxPayload && this.transport.name === "polling" && this.writeBuffer.length > 1;
+ if (!shouldCheckPayloadSize) {
+ return this.writeBuffer;
+ }
+ var payloadSize = 1; // first packet type
+ for (var i = 0; i < this.writeBuffer.length; i++) {
+ var data = this.writeBuffer[i].data;
+ if (data) {
+ payloadSize += byteLength(data);
+ }
+ if (i > 0 && payloadSize > this._maxPayload) {
+ return this.writeBuffer.slice(0, i);
+ }
+ payloadSize += 2; // separator + packet type
+ }
+ return this.writeBuffer;
+ }
+ /**
+ * Checks whether the heartbeat timer has expired but the socket has not yet been notified.
+ *
+ * Note: this method is private for now because it does not really fit the WebSocket API, but if we put it in the
+ * `write()` method then the message would not be buffered by the Socket.IO client.
+ *
+ * @return {boolean}
+ * @private
+ */
+ /* private */;
+ _proto._hasPingExpired = function _hasPingExpired() {
+ var _this5 = this;
+ if (!this._pingTimeoutTime) return true;
+ var hasExpired = Date.now() > this._pingTimeoutTime;
+ if (hasExpired) {
+ this._pingTimeoutTime = 0;
+ nextTick(function () {
+ _this5._onClose("ping timeout");
+ }, this.setTimeoutFn);
+ }
+ return hasExpired;
+ }
+ /**
+ * Sends a message.
+ *
+ * @param {String} msg - message.
+ * @param {Object} options.
+ * @param {Function} fn - callback function.
+ * @return {Socket} for chaining.
+ */;
+ _proto.write = function write(msg, options, fn) {
+ this._sendPacket("message", msg, options, fn);
+ return this;
+ }
+ /**
+ * Sends a message. Alias of {@link Socket#write}.
+ *
+ * @param {String} msg - message.
+ * @param {Object} options.
+ * @param {Function} fn - callback function.
+ * @return {Socket} for chaining.
+ */;
+ _proto.send = function send(msg, options, fn) {
+ this._sendPacket("message", msg, options, fn);
+ return this;
+ }
+ /**
+ * Sends a packet.
+ *
+ * @param {String} type: packet type.
+ * @param {String} data.
+ * @param {Object} options.
+ * @param {Function} fn - callback function.
+ * @private
+ */;
+ _proto._sendPacket = function _sendPacket(type, data, options, fn) {
+ if ("function" === typeof data) {
+ fn = data;
+ data = undefined;
+ }
+ if ("function" === typeof options) {
+ fn = options;
+ options = null;
+ }
+ if ("closing" === this.readyState || "closed" === this.readyState) {
+ return;
+ }
+ options = options || {};
+ options.compress = false !== options.compress;
+ var packet = {
+ type: type,
+ data: data,
+ options: options
+ };
+ this.emitReserved("packetCreate", packet);
+ this.writeBuffer.push(packet);
+ if (fn) this.once("flush", fn);
+ this.flush();
+ }
+ /**
+ * Closes the connection.
+ */;
+ _proto.close = function close() {
+ var _this6 = this;
+ var close = function close() {
+ _this6._onClose("forced close");
+ _this6.transport.close();
+ };
+ var cleanupAndClose = function cleanupAndClose() {
+ _this6.off("upgrade", cleanupAndClose);
+ _this6.off("upgradeError", cleanupAndClose);
+ close();
+ };
+ var waitForUpgrade = function waitForUpgrade() {
+ // wait for upgrade to finish since we can't send packets while pausing a transport
+ _this6.once("upgrade", cleanupAndClose);
+ _this6.once("upgradeError", cleanupAndClose);
+ };
+ if ("opening" === this.readyState || "open" === this.readyState) {
+ this.readyState = "closing";
+ if (this.writeBuffer.length) {
+ this.once("drain", function () {
+ if (_this6.upgrading) {
+ waitForUpgrade();
+ } else {
+ close();
+ }
+ });
+ } else if (this.upgrading) {
+ waitForUpgrade();
+ } else {
+ close();
+ }
+ }
+ return this;
+ }
+ /**
+ * Called upon transport error
+ *
+ * @private
+ */;
+ _proto._onError = function _onError(err) {
+ SocketWithoutUpgrade.priorWebsocketSuccess = false;
+ if (this.opts.tryAllTransports && this.transports.length > 1 && this.readyState === "opening") {
+ this.transports.shift();
+ return this._open();
+ }
+ this.emitReserved("error", err);
+ this._onClose("transport error", err);
+ }
+ /**
+ * Called upon transport close.
+ *
+ * @private
+ */;
+ _proto._onClose = function _onClose(reason, description) {
+ if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
+ // clear timers
+ this.clearTimeoutFn(this._pingTimeoutTimer);
+ // stop event from firing again for transport
+ this.transport.removeAllListeners("close");
+ // ensure transport won't stay open
+ this.transport.close();
+ // ignore further transport communication
+ this.transport.removeAllListeners();
+ if (withEventListeners) {
+ if (this._beforeunloadEventListener) {
+ removeEventListener("beforeunload", this._beforeunloadEventListener, false);
+ }
+ if (this._offlineEventListener) {
+ var i = OFFLINE_EVENT_LISTENERS.indexOf(this._offlineEventListener);
+ if (i !== -1) {
+ OFFLINE_EVENT_LISTENERS.splice(i, 1);
+ }
+ }
+ }
+ // set ready state
+ this.readyState = "closed";
+ // clear session id
+ this.id = null;
+ // emit close event
+ this.emitReserved("close", reason, description);
+ // clean buffers after, so users can still
+ // grab the buffers on `close` event
+ this.writeBuffer = [];
+ this._prevBufferLen = 0;
+ }
+ };
+ return SocketWithoutUpgrade;
+ }(Emitter);
+ SocketWithoutUpgrade.protocol = protocol$1;
+ /**
+ * This class provides a WebSocket-like interface to connect to an Engine.IO server. The connection will be established
+ * with one of the available low-level transports, like HTTP long-polling, WebSocket or WebTransport.
+ *
+ * This class comes with an upgrade mechanism, which means that once the connection is established with the first
+ * low-level transport, it will try to upgrade to a better transport.
+ *
+ * In order to allow tree-shaking, there are no transports included, that's why the `transports` option is mandatory.
+ *
+ * @example
+ * import { SocketWithUpgrade, WebSocket } from "engine.io-client";
+ *
+ * const socket = new SocketWithUpgrade({
+ * transports: [WebSocket]
+ * });
+ *
+ * socket.on("open", () => {
+ * socket.send("hello");
+ * });
+ *
+ * @see SocketWithoutUpgrade
+ * @see Socket
+ */
+ var SocketWithUpgrade = /*#__PURE__*/function (_SocketWithoutUpgrade) {
+ function SocketWithUpgrade() {
+ var _this7;
+ _this7 = _SocketWithoutUpgrade.apply(this, arguments) || this;
+ _this7._upgrades = [];
+ return _this7;
+ }
+ _inheritsLoose(SocketWithUpgrade, _SocketWithoutUpgrade);
+ var _proto2 = SocketWithUpgrade.prototype;
+ _proto2.onOpen = function onOpen() {
+ _SocketWithoutUpgrade.prototype.onOpen.call(this);
+ if ("open" === this.readyState && this.opts.upgrade) {
+ for (var i = 0; i < this._upgrades.length; i++) {
+ this._probe(this._upgrades[i]);
+ }
+ }
+ }
+ /**
+ * Probes a transport.
+ *
+ * @param {String} name - transport name
+ * @private
+ */;
+ _proto2._probe = function _probe(name) {
+ var _this8 = this;
+ var transport = this.createTransport(name);
+ var failed = false;
+ SocketWithoutUpgrade.priorWebsocketSuccess = false;
+ var onTransportOpen = function onTransportOpen() {
+ if (failed) return;
+ transport.send([{
+ type: "ping",
+ data: "probe"
+ }]);
+ transport.once("packet", function (msg) {
+ if (failed) return;
+ if ("pong" === msg.type && "probe" === msg.data) {
+ _this8.upgrading = true;
+ _this8.emitReserved("upgrading", transport);
+ if (!transport) return;
+ SocketWithoutUpgrade.priorWebsocketSuccess = "websocket" === transport.name;
+ _this8.transport.pause(function () {
+ if (failed) return;
+ if ("closed" === _this8.readyState) return;
+ cleanup();
+ _this8.setTransport(transport);
+ transport.send([{
+ type: "upgrade"
+ }]);
+ _this8.emitReserved("upgrade", transport);
+ transport = null;
+ _this8.upgrading = false;
+ _this8.flush();
+ });
+ } else {
+ var err = new Error("probe error");
+ // @ts-ignore
+ err.transport = transport.name;
+ _this8.emitReserved("upgradeError", err);
+ }
+ });
+ };
+ function freezeTransport() {
+ if (failed) return;
+ // Any callback called by transport should be ignored since now
+ failed = true;
+ cleanup();
+ transport.close();
+ transport = null;
+ }
+ // Handle any error that happens while probing
+ var onerror = function onerror(err) {
+ var error = new Error("probe error: " + err);
+ // @ts-ignore
+ error.transport = transport.name;
+ freezeTransport();
+ _this8.emitReserved("upgradeError", error);
+ };
+ function onTransportClose() {
+ onerror("transport closed");
+ }
+ // When the socket is closed while we're probing
+ function onclose() {
+ onerror("socket closed");
+ }
+ // When the socket is upgraded while we're probing
+ function onupgrade(to) {
+ if (transport && to.name !== transport.name) {
+ freezeTransport();
+ }
+ }
+ // Remove all listeners on the transport and on self
+ var cleanup = function cleanup() {
+ transport.removeListener("open", onTransportOpen);
+ transport.removeListener("error", onerror);
+ transport.removeListener("close", onTransportClose);
+ _this8.off("close", onclose);
+ _this8.off("upgrading", onupgrade);
+ };
+ transport.once("open", onTransportOpen);
+ transport.once("error", onerror);
+ transport.once("close", onTransportClose);
+ this.once("close", onclose);
+ this.once("upgrading", onupgrade);
+ if (this._upgrades.indexOf("webtransport") !== -1 && name !== "webtransport") {
+ // favor WebTransport
+ this.setTimeoutFn(function () {
+ if (!failed) {
+ transport.open();
+ }
+ }, 200);
+ } else {
+ transport.open();
+ }
+ };
+ _proto2.onHandshake = function onHandshake(data) {
+ this._upgrades = this._filterUpgrades(data.upgrades);
+ _SocketWithoutUpgrade.prototype.onHandshake.call(this, data);
+ }
+ /**
+ * Filters upgrades, returning only those matching client transports.
+ *
+ * @param {Array} upgrades - server upgrades
+ * @private
+ */;
+ _proto2._filterUpgrades = function _filterUpgrades(upgrades) {
+ var filteredUpgrades = [];
+ for (var i = 0; i < upgrades.length; i++) {
+ if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
+ }
+ return filteredUpgrades;
+ };
+ return SocketWithUpgrade;
+ }(SocketWithoutUpgrade);
+ /**
+ * This class provides a WebSocket-like interface to connect to an Engine.IO server. The connection will be established
+ * with one of the available low-level transports, like HTTP long-polling, WebSocket or WebTransport.
+ *
+ * This class comes with an upgrade mechanism, which means that once the connection is established with the first
+ * low-level transport, it will try to upgrade to a better transport.
+ *
+ * @example
+ * import { Socket } from "engine.io-client";
+ *
+ * const socket = new Socket();
+ *
+ * socket.on("open", () => {
+ * socket.send("hello");
+ * });
+ *
+ * @see SocketWithoutUpgrade
+ * @see SocketWithUpgrade
+ */
+ var Socket$1 = /*#__PURE__*/function (_SocketWithUpgrade) {
+ function Socket(uri) {
+ var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var o = _typeof(uri) === "object" ? uri : opts;
+ if (!o.transports || o.transports && typeof o.transports[0] === "string") {
+ o.transports = (o.transports || ["polling", "websocket", "webtransport"]).map(function (transportName) {
+ return transports[transportName];
+ }).filter(function (t) {
+ return !!t;
+ });
+ }
+ return _SocketWithUpgrade.call(this, uri, o) || this;
+ }
+ _inheritsLoose(Socket, _SocketWithUpgrade);
+ return Socket;
+ }(SocketWithUpgrade);
+
+ Socket$1.protocol;
+
+ function getDefaultExportFromCjs (x) {
+ return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
+ }
+
+ var browser = {exports: {}};
+
+ var ms;
+ var hasRequiredMs;
+ function requireMs() {
+ if (hasRequiredMs) return ms;
+ hasRequiredMs = 1;
+ var s = 1000;
+ var m = s * 60;
+ var h = m * 60;
+ var d = h * 24;
+ var w = d * 7;
+ var y = d * 365.25;
+
+ /**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ * - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+ ms = function ms(val, options) {
+ options = options || {};
+ var type = _typeof(val);
+ if (type === 'string' && val.length > 0) {
+ return parse(val);
+ } else if (type === 'number' && isFinite(val)) {
+ return options["long"] ? fmtLong(val) : fmtShort(val);
+ }
+ throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
+ };
+
+ /**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+ function parse(str) {
+ str = String(str);
+ if (str.length > 100) {
+ return;
+ }
+ var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
+ if (!match) {
+ return;
+ }
+ var n = parseFloat(match[1]);
+ var type = (match[2] || 'ms').toLowerCase();
+ switch (type) {
+ case 'years':
+ case 'year':
+ case 'yrs':
+ case 'yr':
+ case 'y':
+ return n * y;
+ case 'weeks':
+ case 'week':
+ case 'w':
+ return n * w;
+ case 'days':
+ case 'day':
+ case 'd':
+ return n * d;
+ case 'hours':
+ case 'hour':
+ case 'hrs':
+ case 'hr':
+ case 'h':
+ return n * h;
+ case 'minutes':
+ case 'minute':
+ case 'mins':
+ case 'min':
+ case 'm':
+ return n * m;
+ case 'seconds':
+ case 'second':
+ case 'secs':
+ case 'sec':
+ case 's':
+ return n * s;
+ case 'milliseconds':
+ case 'millisecond':
+ case 'msecs':
+ case 'msec':
+ case 'ms':
+ return n;
+ default:
+ return undefined;
+ }
+ }
+
+ /**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+ function fmtShort(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return Math.round(ms / d) + 'd';
+ }
+ if (msAbs >= h) {
+ return Math.round(ms / h) + 'h';
+ }
+ if (msAbs >= m) {
+ return Math.round(ms / m) + 'm';
+ }
+ if (msAbs >= s) {
+ return Math.round(ms / s) + 's';
+ }
+ return ms + 'ms';
+ }
+
+ /**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+ function fmtLong(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return plural(ms, msAbs, d, 'day');
+ }
+ if (msAbs >= h) {
+ return plural(ms, msAbs, h, 'hour');
+ }
+ if (msAbs >= m) {
+ return plural(ms, msAbs, m, 'minute');
+ }
+ if (msAbs >= s) {
+ return plural(ms, msAbs, s, 'second');
+ }
+ return ms + ' ms';
+ }
+
+ /**
+ * Pluralization helper.
+ */
+
+ function plural(ms, msAbs, n, name) {
+ var isPlural = msAbs >= n * 1.5;
+ return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+ }
+ return ms;
+ }
+
+ /**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+ function setup(env) {
+ createDebug.debug = createDebug;
+ createDebug["default"] = createDebug;
+ createDebug.coerce = coerce;
+ createDebug.disable = disable;
+ createDebug.enable = enable;
+ createDebug.enabled = enabled;
+ createDebug.humanize = requireMs();
+ createDebug.destroy = destroy;
+ Object.keys(env).forEach(function (key) {
+ createDebug[key] = env[key];
+ });
+
+ /**
+ * The currently active debug mode names, and names to skip.
+ */
+
+ createDebug.names = [];
+ createDebug.skips = [];
+
+ /**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+ */
+ createDebug.formatters = {};
+
+ /**
+ * Selects a color for a debug namespace
+ * @param {String} namespace The namespace string for the debug instance to be colored
+ * @return {Number|String} An ANSI color code for the given namespace
+ * @api private
+ */
+ function selectColor(namespace) {
+ var hash = 0;
+ for (var i = 0; i < namespace.length; i++) {
+ hash = (hash << 5) - hash + namespace.charCodeAt(i);
+ hash |= 0; // Convert to 32bit integer
+ }
+ return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+ }
+ createDebug.selectColor = selectColor;
+
+ /**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+ function createDebug(namespace) {
+ var prevTime;
+ var enableOverride = null;
+ var namespacesCache;
+ var enabledCache;
+ function debug() {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+ // Disabled?
+ if (!debug.enabled) {
+ return;
+ }
+ var self = debug;
+
+ // Set `diff` timestamp
+ var curr = Number(new Date());
+ var ms = curr - (prevTime || curr);
+ self.diff = ms;
+ self.prev = prevTime;
+ self.curr = curr;
+ prevTime = curr;
+ args[0] = createDebug.coerce(args[0]);
+ if (typeof args[0] !== 'string') {
+ // Anything else let's inspect with %O
+ args.unshift('%O');
+ }
+
+ // Apply any `formatters` transformations
+ var index = 0;
+ args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
+ // If we encounter an escaped % then don't increase the array index
+ if (match === '%%') {
+ return '%';
+ }
+ index++;
+ var formatter = createDebug.formatters[format];
+ if (typeof formatter === 'function') {
+ var val = args[index];
+ match = formatter.call(self, val);
+
+ // Now we need to remove `args[index]` since it's inlined in the `format`
+ args.splice(index, 1);
+ index--;
+ }
+ return match;
+ });
+
+ // Apply env-specific formatting (colors, etc.)
+ createDebug.formatArgs.call(self, args);
+ var logFn = self.log || createDebug.log;
+ logFn.apply(self, args);
+ }
+ debug.namespace = namespace;
+ debug.useColors = createDebug.useColors();
+ debug.color = createDebug.selectColor(namespace);
+ debug.extend = extend;
+ debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+ Object.defineProperty(debug, 'enabled', {
+ enumerable: true,
+ configurable: false,
+ get: function get() {
+ if (enableOverride !== null) {
+ return enableOverride;
+ }
+ if (namespacesCache !== createDebug.namespaces) {
+ namespacesCache = createDebug.namespaces;
+ enabledCache = createDebug.enabled(namespace);
+ }
+ return enabledCache;
+ },
+ set: function set(v) {
+ enableOverride = v;
+ }
+ });
+
+ // Env-specific initialization logic for debug instances
+ if (typeof createDebug.init === 'function') {
+ createDebug.init(debug);
+ }
+ return debug;
+ }
+ function extend(namespace, delimiter) {
+ var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+ newDebug.log = this.log;
+ return newDebug;
+ }
+
+ /**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+ function enable(namespaces) {
+ createDebug.save(namespaces);
+ createDebug.namespaces = namespaces;
+ createDebug.names = [];
+ createDebug.skips = [];
+ var i;
+ var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+ var len = split.length;
+ for (i = 0; i < len; i++) {
+ if (!split[i]) {
+ // ignore empty strings
+ continue;
+ }
+ namespaces = split[i].replace(/\*/g, '.*?');
+ if (namespaces[0] === '-') {
+ createDebug.skips.push(new RegExp('^' + namespaces.slice(1) + '$'));
+ } else {
+ createDebug.names.push(new RegExp('^' + namespaces + '$'));
+ }
+ }
+ }
+
+ /**
+ * Disable debug output.
+ *
+ * @return {String} namespaces
+ * @api public
+ */
+ function disable() {
+ var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
+ return '-' + namespace;
+ }))).join(',');
+ createDebug.enable('');
+ return namespaces;
+ }
+
+ /**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+ function enabled(name) {
+ if (name[name.length - 1] === '*') {
+ return true;
+ }
+ var i;
+ var len;
+ for (i = 0, len = createDebug.skips.length; i < len; i++) {
+ if (createDebug.skips[i].test(name)) {
+ return false;
+ }
+ }
+ for (i = 0, len = createDebug.names.length; i < len; i++) {
+ if (createDebug.names[i].test(name)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Convert regexp to namespace
+ *
+ * @param {RegExp} regxep
+ * @return {String} namespace
+ * @api private
+ */
+ function toNamespace(regexp) {
+ return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
+ }
+
+ /**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+ function coerce(val) {
+ if (val instanceof Error) {
+ return val.stack || val.message;
+ }
+ return val;
+ }
+
+ /**
+ * XXX DO NOT USE. This is a temporary stub function.
+ * XXX It WILL be removed in the next major release.
+ */
+ function destroy() {
+ console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+ }
+ createDebug.enable(createDebug.load());
+ return createDebug;
+ }
+ var common = setup;
+
+ /* eslint-env browser */
+ browser.exports;
+ (function (module, exports) {
+ /**
+ * This is the web browser implementation of `debug()`.
+ */
+
+ exports.formatArgs = formatArgs;
+ exports.save = save;
+ exports.load = load;
+ exports.useColors = useColors;
+ exports.storage = localstorage();
+ exports.destroy = function () {
+ var warned = false;
+ return function () {
+ if (!warned) {
+ warned = true;
+ console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+ }
+ };
+ }();
+
+ /**
+ * Colors.
+ */
+
+ exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
+
+ /**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+ // eslint-disable-next-line complexity
+ function useColors() {
+ // NB: In an Electron preload script, document will be defined but not fully
+ // initialized. Since we know we're in Chrome, we'll just detect this case
+ // explicitly
+ if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+ return true;
+ }
+
+ // Internet Explorer and Edge do not support colors.
+ if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+ return false;
+ }
+
+ // Is webkit? http://stackoverflow.com/a/16459606/376773
+ // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+ return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance ||
+ // Is firebug? http://stackoverflow.com/a/398120/376773
+ typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) ||
+ // Is firefox >= v31?
+ // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+ typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 ||
+ // Double check webkit in userAgent just in case we are in a worker
+ typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
+ }
+
+ /**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+ function formatArgs(args) {
+ args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
+ if (!this.useColors) {
+ return;
+ }
+ var c = 'color: ' + this.color;
+ args.splice(1, 0, c, 'color: inherit');
+
+ // The final "%c" is somewhat tricky, because there could be other
+ // arguments passed either before or after the %c, so we need to
+ // figure out the correct index to insert the CSS into
+ var index = 0;
+ var lastC = 0;
+ args[0].replace(/%[a-zA-Z%]/g, function (match) {
+ if (match === '%%') {
+ return;
+ }
+ index++;
+ if (match === '%c') {
+ // We only are interested in the *last* %c
+ // (the user may have provided their own)
+ lastC = index;
+ }
+ });
+ args.splice(lastC, 0, c);
+ }
+
+ /**
+ * Invokes `console.debug()` when available.
+ * No-op when `console.debug` is not a "function".
+ * If `console.debug` is not available, falls back
+ * to `console.log`.
+ *
+ * @api public
+ */
+ exports.log = console.debug || console.log || function () {};
+
+ /**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+ function save(namespaces) {
+ try {
+ if (namespaces) {
+ exports.storage.setItem('debug', namespaces);
+ } else {
+ exports.storage.removeItem('debug');
+ }
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+ }
+
+ /**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+ function load() {
+ var r;
+ try {
+ r = exports.storage.getItem('debug');
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+
+ // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+ if (!r && typeof process !== 'undefined' && 'env' in process) {
+ r = process.env.DEBUG;
+ }
+ return r;
+ }
+
+ /**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+ function localstorage() {
+ try {
+ // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+ // The Browser also has localStorage in the global context.
+ return localStorage;
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+ }
+ module.exports = common(exports);
+ var formatters = module.exports.formatters;
+
+ /**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+ formatters.j = function (v) {
+ try {
+ return JSON.stringify(v);
+ } catch (error) {
+ return '[UnexpectedJSONParseError]: ' + error.message;
+ }
+ };
+ })(browser, browser.exports);
+ var browserExports = browser.exports;
+ var debugModule = /*@__PURE__*/getDefaultExportFromCjs(browserExports);
+
+ var debug$3 = debugModule("socket.io-client:url"); // debug()
+ /**
+ * URL parser.
+ *
+ * @param uri - url
+ * @param path - the request path of the connection
+ * @param loc - An object meant to mimic window.location.
+ * Defaults to window.location.
+ * @public
+ */
+ function url(uri) {
+ var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
+ var loc = arguments.length > 2 ? arguments[2] : undefined;
+ var obj = uri;
+ // default to window.location
+ loc = loc || typeof location !== "undefined" && location;
+ if (null == uri) uri = loc.protocol + "//" + loc.host;
+ // relative path support
+ if (typeof uri === "string") {
+ if ("/" === uri.charAt(0)) {
+ if ("/" === uri.charAt(1)) {
+ uri = loc.protocol + uri;
+ } else {
+ uri = loc.host + uri;
+ }
+ }
+ if (!/^(https?|wss?):\/\//.test(uri)) {
+ debug$3("protocol-less url %s", uri);
+ if ("undefined" !== typeof loc) {
+ uri = loc.protocol + "//" + uri;
+ } else {
+ uri = "https://" + uri;
+ }
+ }
+ // parse
+ debug$3("parse %s", uri);
+ obj = parse(uri);
+ }
+ // make sure we treat `localhost:80` and `localhost` equally
+ if (!obj.port) {
+ if (/^(http|ws)$/.test(obj.protocol)) {
+ obj.port = "80";
+ } else if (/^(http|ws)s$/.test(obj.protocol)) {
+ obj.port = "443";
+ }
+ }
+ obj.path = obj.path || "/";
+ var ipv6 = obj.host.indexOf(":") !== -1;
+ var host = ipv6 ? "[" + obj.host + "]" : obj.host;
+ // define unique id
+ obj.id = obj.protocol + "://" + host + ":" + obj.port + path;
+ // define href
+ obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
+ return obj;
+ }
+
+ var withNativeArrayBuffer = typeof ArrayBuffer === "function";
+ var isView = function isView(obj) {
+ return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
+ };
+ var toString = Object.prototype.toString;
+ var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
+ var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";
+ /**
+ * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.
+ *
+ * @private
+ */
+ function isBinary(obj) {
+ return withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)) || withNativeBlob && obj instanceof Blob || withNativeFile && obj instanceof File;
+ }
+ function hasBinary(obj, toJSON) {
+ if (!obj || _typeof(obj) !== "object") {
+ return false;
+ }
+ if (Array.isArray(obj)) {
+ for (var i = 0, l = obj.length; i < l; i++) {
+ if (hasBinary(obj[i])) {
+ return true;
+ }
+ }
+ return false;
+ }
+ if (isBinary(obj)) {
+ return true;
+ }
+ if (obj.toJSON && typeof obj.toJSON === "function" && arguments.length === 1) {
+ return hasBinary(obj.toJSON(), true);
+ }
+ for (var key in obj) {
+ if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
+ *
+ * @param {Object} packet - socket.io event packet
+ * @return {Object} with deconstructed packet and list of buffers
+ * @public
+ */
+ function deconstructPacket(packet) {
+ var buffers = [];
+ var packetData = packet.data;
+ var pack = packet;
+ pack.data = _deconstructPacket(packetData, buffers);
+ pack.attachments = buffers.length; // number of binary 'attachments'
+ return {
+ packet: pack,
+ buffers: buffers
+ };
+ }
+ function _deconstructPacket(data, buffers) {
+ if (!data) return data;
+ if (isBinary(data)) {
+ var placeholder = {
+ _placeholder: true,
+ num: buffers.length
+ };
+ buffers.push(data);
+ return placeholder;
+ } else if (Array.isArray(data)) {
+ var newData = new Array(data.length);
+ for (var i = 0; i < data.length; i++) {
+ newData[i] = _deconstructPacket(data[i], buffers);
+ }
+ return newData;
+ } else if (_typeof(data) === "object" && !(data instanceof Date)) {
+ var _newData = {};
+ for (var key in data) {
+ if (Object.prototype.hasOwnProperty.call(data, key)) {
+ _newData[key] = _deconstructPacket(data[key], buffers);
+ }
+ }
+ return _newData;
+ }
+ return data;
+ }
+ /**
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @public
+ */
+ function reconstructPacket(packet, buffers) {
+ packet.data = _reconstructPacket(packet.data, buffers);
+ delete packet.attachments; // no longer useful
+ return packet;
+ }
+ function _reconstructPacket(data, buffers) {
+ if (!data) return data;
+ if (data && data._placeholder === true) {
+ var isIndexValid = typeof data.num === "number" && data.num >= 0 && data.num < buffers.length;
+ if (isIndexValid) {
+ return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+ } else {
+ throw new Error("illegal attachments");
+ }
+ } else if (Array.isArray(data)) {
+ for (var i = 0; i < data.length; i++) {
+ data[i] = _reconstructPacket(data[i], buffers);
+ }
+ } else if (_typeof(data) === "object") {
+ for (var key in data) {
+ if (Object.prototype.hasOwnProperty.call(data, key)) {
+ data[key] = _reconstructPacket(data[key], buffers);
+ }
+ }
+ }
+ return data;
+ }
+
+ /**
+ * These strings must not be used as event names, as they have a special meaning.
+ */
+ var RESERVED_EVENTS$1 = ["connect",
+ // used on the client side
+ "connect_error",
+ // used on the client side
+ "disconnect",
+ // used on both sides
+ "disconnecting",
+ // used on the server side
+ "newListener",
+ // used by the Node.js EventEmitter
+ "removeListener" // used by the Node.js EventEmitter
+ ];
+ /**
+ * Protocol version.
+ *
+ * @public
+ */
+ var protocol = 5;
+ var PacketType;
+ (function (PacketType) {
+ PacketType[PacketType["CONNECT"] = 0] = "CONNECT";
+ PacketType[PacketType["DISCONNECT"] = 1] = "DISCONNECT";
+ PacketType[PacketType["EVENT"] = 2] = "EVENT";
+ PacketType[PacketType["ACK"] = 3] = "ACK";
+ PacketType[PacketType["CONNECT_ERROR"] = 4] = "CONNECT_ERROR";
+ PacketType[PacketType["BINARY_EVENT"] = 5] = "BINARY_EVENT";
+ PacketType[PacketType["BINARY_ACK"] = 6] = "BINARY_ACK";
+ })(PacketType || (PacketType = {}));
+ /**
+ * A socket.io Encoder instance
+ */
+ var Encoder = /*#__PURE__*/function () {
+ /**
+ * Encoder constructor
+ *
+ * @param {function} replacer - custom replacer to pass down to JSON.parse
+ */
+ function Encoder(replacer) {
+ this.replacer = replacer;
+ }
+ /**
+ * Encode a packet as a single string if non-binary, or as a
+ * buffer sequence, depending on packet type.
+ *
+ * @param {Object} obj - packet object
+ */
+ var _proto = Encoder.prototype;
+ _proto.encode = function encode(obj) {
+ if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {
+ if (hasBinary(obj)) {
+ return this.encodeAsBinary({
+ type: obj.type === PacketType.EVENT ? PacketType.BINARY_EVENT : PacketType.BINARY_ACK,
+ nsp: obj.nsp,
+ data: obj.data,
+ id: obj.id
+ });
+ }
+ }
+ return [this.encodeAsString(obj)];
+ }
+ /**
+ * Encode packet as string.
+ */;
+ _proto.encodeAsString = function encodeAsString(obj) {
+ // first is type
+ var str = "" + obj.type;
+ // attachments if we have them
+ if (obj.type === PacketType.BINARY_EVENT || obj.type === PacketType.BINARY_ACK) {
+ str += obj.attachments + "-";
+ }
+ // if we have a namespace other than `/`
+ // we append it followed by a comma `,`
+ if (obj.nsp && "/" !== obj.nsp) {
+ str += obj.nsp + ",";
+ }
+ // immediately followed by the id
+ if (null != obj.id) {
+ str += obj.id;
+ }
+ // json data
+ if (null != obj.data) {
+ str += JSON.stringify(obj.data, this.replacer);
+ }
+ return str;
+ }
+ /**
+ * Encode packet as 'buffer sequence' by removing blobs, and
+ * deconstructing packet into object with placeholders and
+ * a list of buffers.
+ */;
+ _proto.encodeAsBinary = function encodeAsBinary(obj) {
+ var deconstruction = deconstructPacket(obj);
+ var pack = this.encodeAsString(deconstruction.packet);
+ var buffers = deconstruction.buffers;
+ buffers.unshift(pack); // add packet info to beginning of data list
+ return buffers; // write all the buffers
+ };
+ return Encoder;
+ }();
+ /**
+ * A socket.io Decoder instance
+ *
+ * @return {Object} decoder
+ */
+ var Decoder = /*#__PURE__*/function (_Emitter) {
+ /**
+ * Decoder constructor
+ *
+ * @param {function} reviver - custom reviver to pass down to JSON.stringify
+ */
+ function Decoder(reviver) {
+ var _this;
+ _this = _Emitter.call(this) || this;
+ _this.reviver = reviver;
+ return _this;
+ }
+ /**
+ * Decodes an encoded packet string into packet JSON.
+ *
+ * @param {String} obj - encoded packet
+ */
+ _inheritsLoose(Decoder, _Emitter);
+ var _proto2 = Decoder.prototype;
+ _proto2.add = function add(obj) {
+ var packet;
+ if (typeof obj === "string") {
+ if (this.reconstructor) {
+ throw new Error("got plaintext data when reconstructing a packet");
+ }
+ packet = this.decodeString(obj);
+ var isBinaryEvent = packet.type === PacketType.BINARY_EVENT;
+ if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {
+ packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;
+ // binary packet's json
+ this.reconstructor = new BinaryReconstructor(packet);
+ // no attachments, labeled binary but no binary data to follow
+ if (packet.attachments === 0) {
+ _Emitter.prototype.emitReserved.call(this, "decoded", packet);
+ }
+ } else {
+ // non-binary full packet
+ _Emitter.prototype.emitReserved.call(this, "decoded", packet);
+ }
+ } else if (isBinary(obj) || obj.base64) {
+ // raw binary data
+ if (!this.reconstructor) {
+ throw new Error("got binary data when not reconstructing a packet");
+ } else {
+ packet = this.reconstructor.takeBinaryData(obj);
+ if (packet) {
+ // received final buffer
+ this.reconstructor = null;
+ _Emitter.prototype.emitReserved.call(this, "decoded", packet);
+ }
+ }
+ } else {
+ throw new Error("Unknown type: " + obj);
+ }
+ }
+ /**
+ * Decode a packet String (JSON data)
+ *
+ * @param {String} str
+ * @return {Object} packet
+ */;
+ _proto2.decodeString = function decodeString(str) {
+ var i = 0;
+ // look up type
+ var p = {
+ type: Number(str.charAt(0))
+ };
+ if (PacketType[p.type] === undefined) {
+ throw new Error("unknown packet type " + p.type);
+ }
+ // look up attachments if type binary
+ if (p.type === PacketType.BINARY_EVENT || p.type === PacketType.BINARY_ACK) {
+ var start = i + 1;
+ while (str.charAt(++i) !== "-" && i != str.length) {}
+ var buf = str.substring(start, i);
+ if (buf != Number(buf) || str.charAt(i) !== "-") {
+ throw new Error("Illegal attachments");
+ }
+ p.attachments = Number(buf);
+ }
+ // look up namespace (if any)
+ if ("/" === str.charAt(i + 1)) {
+ var _start = i + 1;
+ while (++i) {
+ var c = str.charAt(i);
+ if ("," === c) break;
+ if (i === str.length) break;
+ }
+ p.nsp = str.substring(_start, i);
+ } else {
+ p.nsp = "/";
+ }
+ // look up id
+ var next = str.charAt(i + 1);
+ if ("" !== next && Number(next) == next) {
+ var _start2 = i + 1;
+ while (++i) {
+ var _c = str.charAt(i);
+ if (null == _c || Number(_c) != _c) {
+ --i;
+ break;
+ }
+ if (i === str.length) break;
+ }
+ p.id = Number(str.substring(_start2, i + 1));
+ }
+ // look up json data
+ if (str.charAt(++i)) {
+ var payload = this.tryParse(str.substr(i));
+ if (Decoder.isPayloadValid(p.type, payload)) {
+ p.data = payload;
+ } else {
+ throw new Error("invalid payload");
+ }
+ }
+ return p;
+ };
+ _proto2.tryParse = function tryParse(str) {
+ try {
+ return JSON.parse(str, this.reviver);
+ } catch (e) {
+ return false;
+ }
+ };
+ Decoder.isPayloadValid = function isPayloadValid(type, payload) {
+ switch (type) {
+ case PacketType.CONNECT:
+ return isObject(payload);
+ case PacketType.DISCONNECT:
+ return payload === undefined;
+ case PacketType.CONNECT_ERROR:
+ return typeof payload === "string" || isObject(payload);
+ case PacketType.EVENT:
+ case PacketType.BINARY_EVENT:
+ return Array.isArray(payload) && (typeof payload[0] === "number" || typeof payload[0] === "string" && RESERVED_EVENTS$1.indexOf(payload[0]) === -1);
+ case PacketType.ACK:
+ case PacketType.BINARY_ACK:
+ return Array.isArray(payload);
+ }
+ }
+ /**
+ * Deallocates a parser's resources
+ */;
+ _proto2.destroy = function destroy() {
+ if (this.reconstructor) {
+ this.reconstructor.finishedReconstruction();
+ this.reconstructor = null;
+ }
+ };
+ return Decoder;
+ }(Emitter);
+ /**
+ * A manager of a binary event's 'buffer sequence'. Should
+ * be constructed whenever a packet of type BINARY_EVENT is
+ * decoded.
+ *
+ * @param {Object} packet
+ * @return {BinaryReconstructor} initialized reconstructor
+ */
+ var BinaryReconstructor = /*#__PURE__*/function () {
+ function BinaryReconstructor(packet) {
+ this.packet = packet;
+ this.buffers = [];
+ this.reconPack = packet;
+ }
+ /**
+ * Method to be called when binary data received from connection
+ * after a BINARY_EVENT packet.
+ *
+ * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+ * @return {null | Object} returns null if more binary data is expected or
+ * a reconstructed packet object if all buffers have been received.
+ */
+ var _proto3 = BinaryReconstructor.prototype;
+ _proto3.takeBinaryData = function takeBinaryData(binData) {
+ this.buffers.push(binData);
+ if (this.buffers.length === this.reconPack.attachments) {
+ // done with buffer list
+ var packet = reconstructPacket(this.reconPack, this.buffers);
+ this.finishedReconstruction();
+ return packet;
+ }
+ return null;
+ }
+ /**
+ * Cleans up binary packet reconstruction variables.
+ */;
+ _proto3.finishedReconstruction = function finishedReconstruction() {
+ this.reconPack = null;
+ this.buffers = [];
+ };
+ return BinaryReconstructor;
+ }();
+ function isNamespaceValid(nsp) {
+ return typeof nsp === "string";
+ }
+ // see https://caniuse.com/mdn-javascript_builtins_number_isinteger
+ var isInteger = Number.isInteger || function (value) {
+ return typeof value === "number" && isFinite(value) && Math.floor(value) === value;
+ };
+ function isAckIdValid(id) {
+ return id === undefined || isInteger(id);
+ }
+ // see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript
+ function isObject(value) {
+ return Object.prototype.toString.call(value) === "[object Object]";
+ }
+ function isDataValid(type, payload) {
+ switch (type) {
+ case PacketType.CONNECT:
+ return payload === undefined || isObject(payload);
+ case PacketType.DISCONNECT:
+ return payload === undefined;
+ case PacketType.EVENT:
+ return Array.isArray(payload) && (typeof payload[0] === "number" || typeof payload[0] === "string" && RESERVED_EVENTS$1.indexOf(payload[0]) === -1);
+ case PacketType.ACK:
+ return Array.isArray(payload);
+ case PacketType.CONNECT_ERROR:
+ return typeof payload === "string" || isObject(payload);
+ default:
+ return false;
+ }
+ }
+ function isPacketValid(packet) {
+ return isNamespaceValid(packet.nsp) && isAckIdValid(packet.id) && isDataValid(packet.type, packet.data);
+ }
+
+ var parser = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ protocol: protocol,
+ get PacketType () { return PacketType; },
+ Encoder: Encoder,
+ Decoder: Decoder,
+ isPacketValid: isPacketValid
+ });
+
+ function on(obj, ev, fn) {
+ obj.on(ev, fn);
+ return function subDestroy() {
+ obj.off(ev, fn);
+ };
+ }
+
+ var debug$2 = debugModule("socket.io-client:socket"); // debug()
+ /**
+ * Internal events.
+ * These events can't be emitted by the user.
+ */
+ var RESERVED_EVENTS = Object.freeze({
+ connect: 1,
+ connect_error: 1,
+ disconnect: 1,
+ disconnecting: 1,
+ // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
+ newListener: 1,
+ removeListener: 1
+ });
+ /**
+ * A Socket is the fundamental class for interacting with the server.
+ *
+ * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.
+ *
+ * @example
+ * const socket = io();
+ *
+ * socket.on("connect", () => {
+ * console.log("connected");
+ * });
+ *
+ * // send an event to the server
+ * socket.emit("foo", "bar");
+ *
+ * socket.on("foobar", () => {
+ * // an event was received from the server
+ * });
+ *
+ * // upon disconnection
+ * socket.on("disconnect", (reason) => {
+ * console.log(`disconnected due to ${reason}`);
+ * });
+ */
+ var Socket = /*#__PURE__*/function (_Emitter) {
+ /**
+ * `Socket` constructor.
+ */
+ function Socket(io, nsp, opts) {
+ var _this;
+ _this = _Emitter.call(this) || this;
+ /**
+ * Whether the socket is currently connected to the server.
+ *
+ * @example
+ * const socket = io();
+ *
+ * socket.on("connect", () => {
+ * console.log(socket.connected); // true
+ * });
+ *
+ * socket.on("disconnect", () => {
+ * console.log(socket.connected); // false
+ * });
+ */
+ _this.connected = false;
+ /**
+ * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will
+ * be transmitted by the server.
+ */
+ _this.recovered = false;
+ /**
+ * Buffer for packets received before the CONNECT packet
+ */
+ _this.receiveBuffer = [];
+ /**
+ * Buffer for packets that will be sent once the socket is connected
+ */
+ _this.sendBuffer = [];
+ /**
+ * The queue of packets to be sent with retry in case of failure.
+ *
+ * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.
+ * @private
+ */
+ _this._queue = [];
+ /**
+ * A sequence to generate the ID of the {@link QueuedPacket}.
+ * @private
+ */
+ _this._queueSeq = 0;
+ _this.ids = 0;
+ /**
+ * A map containing acknowledgement handlers.
+ *
+ * The `withError` attribute is used to differentiate handlers that accept an error as first argument:
+ *
+ * - `socket.emit("test", (err, value) => { ... })` with `ackTimeout` option
+ * - `socket.timeout(5000).emit("test", (err, value) => { ... })`
+ * - `const value = await socket.emitWithAck("test")`
+ *
+ * From those that don't:
+ *
+ * - `socket.emit("test", (value) => { ... });`
+ *
+ * In the first case, the handlers will be called with an error when:
+ *
+ * - the timeout is reached
+ * - the socket gets disconnected
+ *
+ * In the second case, the handlers will be simply discarded upon disconnection, since the client will never receive
+ * an acknowledgement from the server.
+ *
+ * @private
+ */
+ _this.acks = {};
+ _this.flags = {};
+ _this.io = io;
+ _this.nsp = nsp;
+ if (opts && opts.auth) {
+ _this.auth = opts.auth;
+ }
+ _this._opts = _extends({}, opts);
+ if (_this.io._autoConnect) _this.open();
+ return _this;
+ }
+ /**
+ * Whether the socket is currently disconnected
+ *
+ * @example
+ * const socket = io();
+ *
+ * socket.on("connect", () => {
+ * console.log(socket.disconnected); // false
+ * });
+ *
+ * socket.on("disconnect", () => {
+ * console.log(socket.disconnected); // true
+ * });
+ */
+ _inheritsLoose(Socket, _Emitter);
+ var _proto = Socket.prototype;
+ /**
+ * Subscribe to open, close and packet events
+ *
+ * @private
+ */
+ _proto.subEvents = function subEvents() {
+ if (this.subs) return;
+ var io = this.io;
+ this.subs = [on(io, "open", this.onopen.bind(this)), on(io, "packet", this.onpacket.bind(this)), on(io, "error", this.onerror.bind(this)), on(io, "close", this.onclose.bind(this))];
+ }
+ /**
+ * Whether the Socket will try to reconnect when its Manager connects or reconnects.
+ *
+ * @example
+ * const socket = io();
+ *
+ * console.log(socket.active); // true
+ *
+ * socket.on("disconnect", (reason) => {
+ * if (reason === "io server disconnect") {
+ * // the disconnection was initiated by the server, you need to manually reconnect
+ * console.log(socket.active); // false
+ * }
+ * // else the socket will automatically try to reconnect
+ * console.log(socket.active); // true
+ * });
+ */;
+ /**
+ * "Opens" the socket.
+ *
+ * @example
+ * const socket = io({
+ * autoConnect: false
+ * });
+ *
+ * socket.connect();
+ */
+ _proto.connect = function connect() {
+ if (this.connected) return this;
+ this.subEvents();
+ if (!this.io["_reconnecting"]) this.io.open(); // ensure open
+ if ("open" === this.io._readyState) this.onopen();
+ return this;
+ }
+ /**
+ * Alias for {@link connect()}.
+ */;
+ _proto.open = function open() {
+ return this.connect();
+ }
+ /**
+ * Sends a `message` event.
+ *
+ * This method mimics the WebSocket.send() method.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+ *
+ * @example
+ * socket.send("hello");
+ *
+ * // this is equivalent to
+ * socket.emit("message", "hello");
+ *
+ * @return self
+ */;
+ _proto.send = function send() {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+ args.unshift("message");
+ this.emit.apply(this, args);
+ return this;
+ }
+ /**
+ * Override `emit`.
+ * If the event is in `events`, it's emitted normally.
+ *
+ * @example
+ * socket.emit("hello", "world");
+ *
+ * // all serializable datastructures are supported (no need to call JSON.stringify)
+ * socket.emit("hello", 1, "2", { 3: ["4"], 5: Uint8Array.from([6]) });
+ *
+ * // with an acknowledgement from the server
+ * socket.emit("hello", "world", (val) => {
+ * // ...
+ * });
+ *
+ * @return self
+ */;
+ _proto.emit = function emit(ev) {
+ var _a, _b, _c;
+ if (RESERVED_EVENTS.hasOwnProperty(ev)) {
+ throw new Error('"' + ev.toString() + '" is a reserved event name');
+ }
+ for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+ args[_key2 - 1] = arguments[_key2];
+ }
+ args.unshift(ev);
+ if (this._opts.retries && !this.flags.fromQueue && !this.flags["volatile"]) {
+ this._addToQueue(args);
+ return this;
+ }
+ var packet = {
+ type: PacketType.EVENT,
+ data: args
+ };
+ packet.options = {};
+ packet.options.compress = this.flags.compress !== false;
+ // event ack callback
+ if ("function" === typeof args[args.length - 1]) {
+ var id = this.ids++;
+ debug$2("emitting packet with ack id %d", id);
+ var ack = args.pop();
+ this._registerAckCallback(id, ack);
+ packet.id = id;
+ }
+ var isTransportWritable = (_b = (_a = this.io.engine) === null || _a === void 0 ? void 0 : _a.transport) === null || _b === void 0 ? void 0 : _b.writable;
+ var isConnected = this.connected && !((_c = this.io.engine) === null || _c === void 0 ? void 0 : _c._hasPingExpired());
+ var discardPacket = this.flags["volatile"] && !isTransportWritable;
+ if (discardPacket) {
+ debug$2("discard packet as the transport is not currently writable");
+ } else if (isConnected) {
+ this.notifyOutgoingListeners(packet);
+ this.packet(packet);
+ } else {
+ this.sendBuffer.push(packet);
+ }
+ this.flags = {};
+ return this;
+ }
+ /**
+ * @private
+ */;
+ _proto._registerAckCallback = function _registerAckCallback(id, ack) {
+ var _this2 = this;
+ var _a;
+ var timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;
+ if (timeout === undefined) {
+ this.acks[id] = ack;
+ return;
+ }
+ // @ts-ignore
+ var timer = this.io.setTimeoutFn(function () {
+ delete _this2.acks[id];
+ for (var i = 0; i < _this2.sendBuffer.length; i++) {
+ if (_this2.sendBuffer[i].id === id) {
+ debug$2("removing packet with ack id %d from the buffer", id);
+ _this2.sendBuffer.splice(i, 1);
+ }
+ }
+ debug$2("event with ack id %d has timed out after %d ms", id, timeout);
+ ack.call(_this2, new Error("operation has timed out"));
+ }, timeout);
+ var fn = function fn() {
+ // @ts-ignore
+ _this2.io.clearTimeoutFn(timer);
+ for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+ ack.apply(_this2, args);
+ };
+ fn.withError = true;
+ this.acks[id] = fn;
+ }
+ /**
+ * Emits an event and waits for an acknowledgement
+ *
+ * @example
+ * // without timeout
+ * const response = await socket.emitWithAck("hello", "world");
+ *
+ * // with a specific timeout
+ * try {
+ * const response = await socket.timeout(1000).emitWithAck("hello", "world");
+ * } catch (err) {
+ * // the server did not acknowledge the event in the given delay
+ * }
+ *
+ * @return a Promise that will be fulfilled when the server acknowledges the event
+ */;
+ _proto.emitWithAck = function emitWithAck(ev) {
+ var _this3 = this;
+ for (var _len4 = arguments.length, args = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
+ args[_key4 - 1] = arguments[_key4];
+ }
+ return new Promise(function (resolve, reject) {
+ var fn = function fn(arg1, arg2) {
+ return arg1 ? reject(arg1) : resolve(arg2);
+ };
+ fn.withError = true;
+ args.push(fn);
+ _this3.emit.apply(_this3, [ev].concat(args));
+ });
+ }
+ /**
+ * Add the packet to the queue.
+ * @param args
+ * @private
+ */;
+ _proto._addToQueue = function _addToQueue(args) {
+ var _this4 = this;
+ var ack;
+ if (typeof args[args.length - 1] === "function") {
+ ack = args.pop();
+ }
+ var packet = {
+ id: this._queueSeq++,
+ tryCount: 0,
+ pending: false,
+ args: args,
+ flags: _extends({
+ fromQueue: true
+ }, this.flags)
+ };
+ args.push(function (err) {
+ if (packet !== _this4._queue[0]) {
+ // the packet has already been acknowledged
+ return;
+ }
+ var hasError = err !== null;
+ if (hasError) {
+ if (packet.tryCount > _this4._opts.retries) {
+ debug$2("packet [%d] is discarded after %d tries", packet.id, packet.tryCount);
+ _this4._queue.shift();
+ if (ack) {
+ ack(err);
+ }
+ }
+ } else {
+ debug$2("packet [%d] was successfully sent", packet.id);
+ _this4._queue.shift();
+ if (ack) {
+ for (var _len5 = arguments.length, responseArgs = new Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {
+ responseArgs[_key5 - 1] = arguments[_key5];
+ }
+ ack.apply(void 0, [null].concat(responseArgs));
+ }
+ }
+ packet.pending = false;
+ return _this4._drainQueue();
+ });
+ this._queue.push(packet);
+ this._drainQueue();
+ }
+ /**
+ * Send the first packet of the queue, and wait for an acknowledgement from the server.
+ * @param force - whether to resend a packet that has not been acknowledged yet
+ *
+ * @private
+ */;
+ _proto._drainQueue = function _drainQueue() {
+ var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
+ debug$2("draining queue");
+ if (!this.connected || this._queue.length === 0) {
+ return;
+ }
+ var packet = this._queue[0];
+ if (packet.pending && !force) {
+ debug$2("packet [%d] has already been sent and is waiting for an ack", packet.id);
+ return;
+ }
+ packet.pending = true;
+ packet.tryCount++;
+ debug$2("sending packet [%d] (try n°%d)", packet.id, packet.tryCount);
+ this.flags = packet.flags;
+ this.emit.apply(this, packet.args);
+ }
+ /**
+ * Sends a packet.
+ *
+ * @param packet
+ * @private
+ */;
+ _proto.packet = function packet(_packet) {
+ _packet.nsp = this.nsp;
+ this.io._packet(_packet);
+ }
+ /**
+ * Called upon engine `open`.
+ *
+ * @private
+ */;
+ _proto.onopen = function onopen() {
+ var _this5 = this;
+ debug$2("transport is open - connecting");
+ if (typeof this.auth == "function") {
+ this.auth(function (data) {
+ _this5._sendConnectPacket(data);
+ });
+ } else {
+ this._sendConnectPacket(this.auth);
+ }
+ }
+ /**
+ * Sends a CONNECT packet to initiate the Socket.IO session.
+ *
+ * @param data
+ * @private
+ */;
+ _proto._sendConnectPacket = function _sendConnectPacket(data) {
+ this.packet({
+ type: PacketType.CONNECT,
+ data: this._pid ? _extends({
+ pid: this._pid,
+ offset: this._lastOffset
+ }, data) : data
+ });
+ }
+ /**
+ * Called upon engine or manager `error`.
+ *
+ * @param err
+ * @private
+ */;
+ _proto.onerror = function onerror(err) {
+ if (!this.connected) {
+ this.emitReserved("connect_error", err);
+ }
+ }
+ /**
+ * Called upon engine `close`.
+ *
+ * @param reason
+ * @param description
+ * @private
+ */;
+ _proto.onclose = function onclose(reason, description) {
+ debug$2("close (%s)", reason);
+ this.connected = false;
+ delete this.id;
+ this.emitReserved("disconnect", reason, description);
+ this._clearAcks();
+ }
+ /**
+ * Clears the acknowledgement handlers upon disconnection, since the client will never receive an acknowledgement from
+ * the server.
+ *
+ * @private
+ */;
+ _proto._clearAcks = function _clearAcks() {
+ var _this6 = this;
+ Object.keys(this.acks).forEach(function (id) {
+ var isBuffered = _this6.sendBuffer.some(function (packet) {
+ return String(packet.id) === id;
+ });
+ if (!isBuffered) {
+ // note: handlers that do not accept an error as first argument are ignored here
+ var ack = _this6.acks[id];
+ delete _this6.acks[id];
+ if (ack.withError) {
+ ack.call(_this6, new Error("socket has been disconnected"));
+ }
+ }
+ });
+ }
+ /**
+ * Called with socket packet.
+ *
+ * @param packet
+ * @private
+ */;
+ _proto.onpacket = function onpacket(packet) {
+ var sameNamespace = packet.nsp === this.nsp;
+ if (!sameNamespace) return;
+ switch (packet.type) {
+ case PacketType.CONNECT:
+ if (packet.data && packet.data.sid) {
+ this.onconnect(packet.data.sid, packet.data.pid);
+ } else {
+ this.emitReserved("connect_error", new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));
+ }
+ break;
+ case PacketType.EVENT:
+ case PacketType.BINARY_EVENT:
+ this.onevent(packet);
+ break;
+ case PacketType.ACK:
+ case PacketType.BINARY_ACK:
+ this.onack(packet);
+ break;
+ case PacketType.DISCONNECT:
+ this.ondisconnect();
+ break;
+ case PacketType.CONNECT_ERROR:
+ this.destroy();
+ var err = new Error(packet.data.message);
+ // @ts-ignore
+ err.data = packet.data.data;
+ this.emitReserved("connect_error", err);
+ break;
+ }
+ }
+ /**
+ * Called upon a server event.
+ *
+ * @param packet
+ * @private
+ */;
+ _proto.onevent = function onevent(packet) {
+ var args = packet.data || [];
+ debug$2("emitting event %j", args);
+ if (null != packet.id) {
+ debug$2("attaching ack callback to event");
+ args.push(this.ack(packet.id));
+ }
+ if (this.connected) {
+ this.emitEvent(args);
+ } else {
+ this.receiveBuffer.push(Object.freeze(args));
+ }
+ };
+ _proto.emitEvent = function emitEvent(args) {
+ if (this._anyListeners && this._anyListeners.length) {
+ var listeners = this._anyListeners.slice();
+ var _iterator = _createForOfIteratorHelper(listeners),
+ _step;
+ try {
+ for (_iterator.s(); !(_step = _iterator.n()).done;) {
+ var listener = _step.value;
+ listener.apply(this, args);
+ }
+ } catch (err) {
+ _iterator.e(err);
+ } finally {
+ _iterator.f();
+ }
+ }
+ _Emitter.prototype.emit.apply(this, args);
+ if (this._pid && args.length && typeof args[args.length - 1] === "string") {
+ this._lastOffset = args[args.length - 1];
+ }
+ }
+ /**
+ * Produces an ack callback to emit with an event.
+ *
+ * @private
+ */;
+ _proto.ack = function ack(id) {
+ var self = this;
+ var sent = false;
+ return function () {
+ // prevent double callbacks
+ if (sent) return;
+ sent = true;
+ for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {
+ args[_key6] = arguments[_key6];
+ }
+ debug$2("sending ack %j", args);
+ self.packet({
+ type: PacketType.ACK,
+ id: id,
+ data: args
+ });
+ };
+ }
+ /**
+ * Called upon a server acknowledgement.
+ *
+ * @param packet
+ * @private
+ */;
+ _proto.onack = function onack(packet) {
+ var ack = this.acks[packet.id];
+ if (typeof ack !== "function") {
+ debug$2("bad ack %s", packet.id);
+ return;
+ }
+ delete this.acks[packet.id];
+ debug$2("calling ack %s with %j", packet.id, packet.data);
+ // @ts-ignore FIXME ack is incorrectly inferred as 'never'
+ if (ack.withError) {
+ packet.data.unshift(null);
+ }
+ // @ts-ignore
+ ack.apply(this, packet.data);
+ }
+ /**
+ * Called upon server connect.
+ *
+ * @private
+ */;
+ _proto.onconnect = function onconnect(id, pid) {
+ debug$2("socket connected with id %s", id);
+ this.id = id;
+ this.recovered = pid && this._pid === pid;
+ this._pid = pid; // defined only if connection state recovery is enabled
+ this.connected = true;
+ this.emitBuffered();
+ this.emitReserved("connect");
+ this._drainQueue(true);
+ }
+ /**
+ * Emit buffered events (received and emitted).
+ *
+ * @private
+ */;
+ _proto.emitBuffered = function emitBuffered() {
+ var _this7 = this;
+ this.receiveBuffer.forEach(function (args) {
+ return _this7.emitEvent(args);
+ });
+ this.receiveBuffer = [];
+ this.sendBuffer.forEach(function (packet) {
+ _this7.notifyOutgoingListeners(packet);
+ _this7.packet(packet);
+ });
+ this.sendBuffer = [];
+ }
+ /**
+ * Called upon server disconnect.
+ *
+ * @private
+ */;
+ _proto.ondisconnect = function ondisconnect() {
+ debug$2("server disconnect (%s)", this.nsp);
+ this.destroy();
+ this.onclose("io server disconnect");
+ }
+ /**
+ * Called upon forced client/server side disconnections,
+ * this method ensures the manager stops tracking us and
+ * that reconnections don't get triggered for this.
+ *
+ * @private
+ */;
+ _proto.destroy = function destroy() {
+ if (this.subs) {
+ // clean subscriptions to avoid reconnections
+ this.subs.forEach(function (subDestroy) {
+ return subDestroy();
+ });
+ this.subs = undefined;
+ }
+ this.io["_destroy"](this);
+ }
+ /**
+ * Disconnects the socket manually. In that case, the socket will not try to reconnect.
+ *
+ * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.
+ *
+ * @example
+ * const socket = io();
+ *
+ * socket.on("disconnect", (reason) => {
+ * // console.log(reason); prints "io client disconnect"
+ * });
+ *
+ * socket.disconnect();
+ *
+ * @return self
+ */;
+ _proto.disconnect = function disconnect() {
+ if (this.connected) {
+ debug$2("performing disconnect (%s)", this.nsp);
+ this.packet({
+ type: PacketType.DISCONNECT
+ });
+ }
+ // remove socket from pool
+ this.destroy();
+ if (this.connected) {
+ // fire events
+ this.onclose("io client disconnect");
+ }
+ return this;
+ }
+ /**
+ * Alias for {@link disconnect()}.
+ *
+ * @return self
+ */;
+ _proto.close = function close() {
+ return this.disconnect();
+ }
+ /**
+ * Sets the compress flag.
+ *
+ * @example
+ * socket.compress(false).emit("hello");
+ *
+ * @param compress - if `true`, compresses the sending data
+ * @return self
+ */;
+ _proto.compress = function compress(_compress) {
+ this.flags.compress = _compress;
+ return this;
+ }
+ /**
+ * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
+ * ready to send messages.
+ *
+ * @example
+ * socket.volatile.emit("hello"); // the server may or may not receive it
+ *
+ * @returns self
+ */;
+ /**
+ * Sets a modifier for a subsequent event emission that the callback will be called with an error when the
+ * given number of milliseconds have elapsed without an acknowledgement from the server:
+ *
+ * @example
+ * socket.timeout(5000).emit("my-event", (err) => {
+ * if (err) {
+ * // the server did not acknowledge the event in the given delay
+ * }
+ * });
+ *
+ * @returns self
+ */
+ _proto.timeout = function timeout(_timeout) {
+ this.flags.timeout = _timeout;
+ return this;
+ }
+ /**
+ * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
+ * callback.
+ *
+ * @example
+ * socket.onAny((event, ...args) => {
+ * console.log(`got ${event}`);
+ * });
+ *
+ * @param listener
+ */;
+ _proto.onAny = function onAny(listener) {
+ this._anyListeners = this._anyListeners || [];
+ this._anyListeners.push(listener);
+ return this;
+ }
+ /**
+ * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
+ * callback. The listener is added to the beginning of the listeners array.
+ *
+ * @example
+ * socket.prependAny((event, ...args) => {
+ * console.log(`got event ${event}`);
+ * });
+ *
+ * @param listener
+ */;
+ _proto.prependAny = function prependAny(listener) {
+ this._anyListeners = this._anyListeners || [];
+ this._anyListeners.unshift(listener);
+ return this;
+ }
+ /**
+ * Removes the listener that will be fired when any event is emitted.
+ *
+ * @example
+ * const catchAllListener = (event, ...args) => {
+ * console.log(`got event ${event}`);
+ * }
+ *
+ * socket.onAny(catchAllListener);
+ *
+ * // remove a specific listener
+ * socket.offAny(catchAllListener);
+ *
+ * // or remove all listeners
+ * socket.offAny();
+ *
+ * @param listener
+ */;
+ _proto.offAny = function offAny(listener) {
+ if (!this._anyListeners) {
+ return this;
+ }
+ if (listener) {
+ var listeners = this._anyListeners;
+ for (var i = 0; i < listeners.length; i++) {
+ if (listener === listeners[i]) {
+ listeners.splice(i, 1);
+ return this;
+ }
+ }
+ } else {
+ this._anyListeners = [];
+ }
+ return this;
+ }
+ /**
+ * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
+ * e.g. to remove listeners.
+ */;
+ _proto.listenersAny = function listenersAny() {
+ return this._anyListeners || [];
+ }
+ /**
+ * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
+ * callback.
+ *
+ * Note: acknowledgements sent to the server are not included.
+ *
+ * @example
+ * socket.onAnyOutgoing((event, ...args) => {
+ * console.log(`sent event ${event}`);
+ * });
+ *
+ * @param listener
+ */;
+ _proto.onAnyOutgoing = function onAnyOutgoing(listener) {
+ this._anyOutgoingListeners = this._anyOutgoingListeners || [];
+ this._anyOutgoingListeners.push(listener);
+ return this;
+ }
+ /**
+ * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
+ * callback. The listener is added to the beginning of the listeners array.
+ *
+ * Note: acknowledgements sent to the server are not included.
+ *
+ * @example
+ * socket.prependAnyOutgoing((event, ...args) => {
+ * console.log(`sent event ${event}`);
+ * });
+ *
+ * @param listener
+ */;
+ _proto.prependAnyOutgoing = function prependAnyOutgoing(listener) {
+ this._anyOutgoingListeners = this._anyOutgoingListeners || [];
+ this._anyOutgoingListeners.unshift(listener);
+ return this;
+ }
+ /**
+ * Removes the listener that will be fired when any event is emitted.
+ *
+ * @example
+ * const catchAllListener = (event, ...args) => {
+ * console.log(`sent event ${event}`);
+ * }
+ *
+ * socket.onAnyOutgoing(catchAllListener);
+ *
+ * // remove a specific listener
+ * socket.offAnyOutgoing(catchAllListener);
+ *
+ * // or remove all listeners
+ * socket.offAnyOutgoing();
+ *
+ * @param [listener] - the catch-all listener (optional)
+ */;
+ _proto.offAnyOutgoing = function offAnyOutgoing(listener) {
+ if (!this._anyOutgoingListeners) {
+ return this;
+ }
+ if (listener) {
+ var listeners = this._anyOutgoingListeners;
+ for (var i = 0; i < listeners.length; i++) {
+ if (listener === listeners[i]) {
+ listeners.splice(i, 1);
+ return this;
+ }
+ }
+ } else {
+ this._anyOutgoingListeners = [];
+ }
+ return this;
+ }
+ /**
+ * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
+ * e.g. to remove listeners.
+ */;
+ _proto.listenersAnyOutgoing = function listenersAnyOutgoing() {
+ return this._anyOutgoingListeners || [];
+ }
+ /**
+ * Notify the listeners for each packet sent
+ *
+ * @param packet
+ *
+ * @private
+ */;
+ _proto.notifyOutgoingListeners = function notifyOutgoingListeners(packet) {
+ if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {
+ var listeners = this._anyOutgoingListeners.slice();
+ var _iterator2 = _createForOfIteratorHelper(listeners),
+ _step2;
+ try {
+ for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
+ var listener = _step2.value;
+ listener.apply(this, packet.data);
+ }
+ } catch (err) {
+ _iterator2.e(err);
+ } finally {
+ _iterator2.f();
+ }
+ }
+ };
+ return _createClass(Socket, [{
+ key: "disconnected",
+ get: function get() {
+ return !this.connected;
+ }
+ }, {
+ key: "active",
+ get: function get() {
+ return !!this.subs;
+ }
+ }, {
+ key: "volatile",
+ get: function get() {
+ this.flags["volatile"] = true;
+ return this;
+ }
+ }]);
+ }(Emitter);
+
+ /**
+ * Initialize backoff timer with `opts`.
+ *
+ * - `min` initial timeout in milliseconds [100]
+ * - `max` max timeout [10000]
+ * - `jitter` [0]
+ * - `factor` [2]
+ *
+ * @param {Object} opts
+ * @api public
+ */
+ function Backoff(opts) {
+ opts = opts || {};
+ this.ms = opts.min || 100;
+ this.max = opts.max || 10000;
+ this.factor = opts.factor || 2;
+ this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
+ this.attempts = 0;
+ }
+ /**
+ * Return the backoff duration.
+ *
+ * @return {Number}
+ * @api public
+ */
+ Backoff.prototype.duration = function () {
+ var ms = this.ms * Math.pow(this.factor, this.attempts++);
+ if (this.jitter) {
+ var rand = Math.random();
+ var deviation = Math.floor(rand * this.jitter * ms);
+ ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
+ }
+ return Math.min(ms, this.max) | 0;
+ };
+ /**
+ * Reset the number of attempts.
+ *
+ * @api public
+ */
+ Backoff.prototype.reset = function () {
+ this.attempts = 0;
+ };
+ /**
+ * Set the minimum duration
+ *
+ * @api public
+ */
+ Backoff.prototype.setMin = function (min) {
+ this.ms = min;
+ };
+ /**
+ * Set the maximum duration
+ *
+ * @api public
+ */
+ Backoff.prototype.setMax = function (max) {
+ this.max = max;
+ };
+ /**
+ * Set the jitter
+ *
+ * @api public
+ */
+ Backoff.prototype.setJitter = function (jitter) {
+ this.jitter = jitter;
+ };
+
+ var debug$1 = debugModule("socket.io-client:manager"); // debug()
+ var Manager = /*#__PURE__*/function (_Emitter) {
+ function Manager(uri, opts) {
+ var _this;
+ var _a;
+ _this = _Emitter.call(this) || this;
+ _this.nsps = {};
+ _this.subs = [];
+ if (uri && "object" === _typeof(uri)) {
+ opts = uri;
+ uri = undefined;
+ }
+ opts = opts || {};
+ opts.path = opts.path || "/socket.io";
+ _this.opts = opts;
+ installTimerFunctions(_this, opts);
+ _this.reconnection(opts.reconnection !== false);
+ _this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+ _this.reconnectionDelay(opts.reconnectionDelay || 1000);
+ _this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+ _this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);
+ _this.backoff = new Backoff({
+ min: _this.reconnectionDelay(),
+ max: _this.reconnectionDelayMax(),
+ jitter: _this.randomizationFactor()
+ });
+ _this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+ _this._readyState = "closed";
+ _this.uri = uri;
+ var _parser = opts.parser || parser;
+ _this.encoder = new _parser.Encoder();
+ _this.decoder = new _parser.Decoder();
+ _this._autoConnect = opts.autoConnect !== false;
+ if (_this._autoConnect) _this.open();
+ return _this;
+ }
+ _inheritsLoose(Manager, _Emitter);
+ var _proto = Manager.prototype;
+ _proto.reconnection = function reconnection(v) {
+ if (!arguments.length) return this._reconnection;
+ this._reconnection = !!v;
+ if (!v) {
+ this.skipReconnect = true;
+ }
+ return this;
+ };
+ _proto.reconnectionAttempts = function reconnectionAttempts(v) {
+ if (v === undefined) return this._reconnectionAttempts;
+ this._reconnectionAttempts = v;
+ return this;
+ };
+ _proto.reconnectionDelay = function reconnectionDelay(v) {
+ var _a;
+ if (v === undefined) return this._reconnectionDelay;
+ this._reconnectionDelay = v;
+ (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);
+ return this;
+ };
+ _proto.randomizationFactor = function randomizationFactor(v) {
+ var _a;
+ if (v === undefined) return this._randomizationFactor;
+ this._randomizationFactor = v;
+ (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);
+ return this;
+ };
+ _proto.reconnectionDelayMax = function reconnectionDelayMax(v) {
+ var _a;
+ if (v === undefined) return this._reconnectionDelayMax;
+ this._reconnectionDelayMax = v;
+ (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);
+ return this;
+ };
+ _proto.timeout = function timeout(v) {
+ if (!arguments.length) return this._timeout;
+ this._timeout = v;
+ return this;
+ }
+ /**
+ * Starts trying to reconnect if reconnection is enabled and we have not
+ * started reconnecting yet
+ *
+ * @private
+ */;
+ _proto.maybeReconnectOnOpen = function maybeReconnectOnOpen() {
+ // Only try to reconnect if it's the first time we're connecting
+ if (!this._reconnecting && this._reconnection && this.backoff.attempts === 0) {
+ // keeps reconnection from firing twice for the same reconnection loop
+ this.reconnect();
+ }
+ }
+ /**
+ * Sets the current transport `socket`.
+ *
+ * @param {Function} fn - optional, callback
+ * @return self
+ * @public
+ */;
+ _proto.open = function open(fn) {
+ var _this2 = this;
+ debug$1("readyState %s", this._readyState);
+ if (~this._readyState.indexOf("open")) return this;
+ debug$1("opening %s", this.uri);
+ this.engine = new Socket$1(this.uri, this.opts);
+ var socket = this.engine;
+ var self = this;
+ this._readyState = "opening";
+ this.skipReconnect = false;
+ // emit `open`
+ var openSubDestroy = on(socket, "open", function () {
+ self.onopen();
+ fn && fn();
+ });
+ var onError = function onError(err) {
+ debug$1("error");
+ _this2.cleanup();
+ _this2._readyState = "closed";
+ _this2.emitReserved("error", err);
+ if (fn) {
+ fn(err);
+ } else {
+ // Only do this if there is no fn to handle the error
+ _this2.maybeReconnectOnOpen();
+ }
+ };
+ // emit `error`
+ var errorSub = on(socket, "error", onError);
+ if (false !== this._timeout) {
+ var timeout = this._timeout;
+ debug$1("connect attempt will timeout after %d", timeout);
+ // set timer
+ var timer = this.setTimeoutFn(function () {
+ debug$1("connect attempt timed out after %d", timeout);
+ openSubDestroy();
+ onError(new Error("timeout"));
+ socket.close();
+ }, timeout);
+ if (this.opts.autoUnref) {
+ timer.unref();
+ }
+ this.subs.push(function () {
+ _this2.clearTimeoutFn(timer);
+ });
+ }
+ this.subs.push(openSubDestroy);
+ this.subs.push(errorSub);
+ return this;
+ }
+ /**
+ * Alias for open()
+ *
+ * @return self
+ * @public
+ */;
+ _proto.connect = function connect(fn) {
+ return this.open(fn);
+ }
+ /**
+ * Called upon transport open.
+ *
+ * @private
+ */;
+ _proto.onopen = function onopen() {
+ debug$1("open");
+ // clear old subs
+ this.cleanup();
+ // mark as open
+ this._readyState = "open";
+ this.emitReserved("open");
+ // add new subs
+ var socket = this.engine;
+ this.subs.push(on(socket, "ping", this.onping.bind(this)), on(socket, "data", this.ondata.bind(this)), on(socket, "error", this.onerror.bind(this)), on(socket, "close", this.onclose.bind(this)),
+ // @ts-ignore
+ on(this.decoder, "decoded", this.ondecoded.bind(this)));
+ }
+ /**
+ * Called upon a ping.
+ *
+ * @private
+ */;
+ _proto.onping = function onping() {
+ this.emitReserved("ping");
+ }
+ /**
+ * Called with data.
+ *
+ * @private
+ */;
+ _proto.ondata = function ondata(data) {
+ try {
+ this.decoder.add(data);
+ } catch (e) {
+ this.onclose("parse error", e);
+ }
+ }
+ /**
+ * Called when parser fully decodes a packet.
+ *
+ * @private
+ */;
+ _proto.ondecoded = function ondecoded(packet) {
+ var _this3 = this;
+ // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a "parse error"
+ nextTick(function () {
+ _this3.emitReserved("packet", packet);
+ }, this.setTimeoutFn);
+ }
+ /**
+ * Called upon socket error.
+ *
+ * @private
+ */;
+ _proto.onerror = function onerror(err) {
+ debug$1("error", err);
+ this.emitReserved("error", err);
+ }
+ /**
+ * Creates a new socket for the given `nsp`.
+ *
+ * @return {Socket}
+ * @public
+ */;
+ _proto.socket = function socket(nsp, opts) {
+ var socket = this.nsps[nsp];
+ if (!socket) {
+ socket = new Socket(this, nsp, opts);
+ this.nsps[nsp] = socket;
+ } else if (this._autoConnect && !socket.active) {
+ socket.connect();
+ }
+ return socket;
+ }
+ /**
+ * Called upon a socket close.
+ *
+ * @param socket
+ * @private
+ */;
+ _proto._destroy = function _destroy(socket) {
+ var nsps = Object.keys(this.nsps);
+ for (var _i = 0, _nsps = nsps; _i < _nsps.length; _i++) {
+ var nsp = _nsps[_i];
+ var _socket = this.nsps[nsp];
+ if (_socket.active) {
+ debug$1("socket %s is still active, skipping close", nsp);
+ return;
+ }
+ }
+ this._close();
+ }
+ /**
+ * Writes a packet.
+ *
+ * @param packet
+ * @private
+ */;
+ _proto._packet = function _packet(packet) {
+ debug$1("writing packet %j", packet);
+ var encodedPackets = this.encoder.encode(packet);
+ for (var i = 0; i < encodedPackets.length; i++) {
+ this.engine.write(encodedPackets[i], packet.options);
+ }
+ }
+ /**
+ * Clean up transport subscriptions and packet buffer.
+ *
+ * @private
+ */;
+ _proto.cleanup = function cleanup() {
+ debug$1("cleanup");
+ this.subs.forEach(function (subDestroy) {
+ return subDestroy();
+ });
+ this.subs.length = 0;
+ this.decoder.destroy();
+ }
+ /**
+ * Close the current socket.
+ *
+ * @private
+ */;
+ _proto._close = function _close() {
+ debug$1("disconnect");
+ this.skipReconnect = true;
+ this._reconnecting = false;
+ this.onclose("forced close");
+ }
+ /**
+ * Alias for close()
+ *
+ * @private
+ */;
+ _proto.disconnect = function disconnect() {
+ return this._close();
+ }
+ /**
+ * Called when:
+ *
+ * - the low-level engine is closed
+ * - the parser encountered a badly formatted packet
+ * - all sockets are disconnected
+ *
+ * @private
+ */;
+ _proto.onclose = function onclose(reason, description) {
+ var _a;
+ debug$1("closed due to %s", reason);
+ this.cleanup();
+ (_a = this.engine) === null || _a === void 0 ? void 0 : _a.close();
+ this.backoff.reset();
+ this._readyState = "closed";
+ this.emitReserved("close", reason, description);
+ if (this._reconnection && !this.skipReconnect) {
+ this.reconnect();
+ }
+ }
+ /**
+ * Attempt a reconnection.
+ *
+ * @private
+ */;
+ _proto.reconnect = function reconnect() {
+ var _this4 = this;
+ if (this._reconnecting || this.skipReconnect) return this;
+ var self = this;
+ if (this.backoff.attempts >= this._reconnectionAttempts) {
+ debug$1("reconnect failed");
+ this.backoff.reset();
+ this.emitReserved("reconnect_failed");
+ this._reconnecting = false;
+ } else {
+ var delay = this.backoff.duration();
+ debug$1("will wait %dms before reconnect attempt", delay);
+ this._reconnecting = true;
+ var timer = this.setTimeoutFn(function () {
+ if (self.skipReconnect) return;
+ debug$1("attempting reconnect");
+ _this4.emitReserved("reconnect_attempt", self.backoff.attempts);
+ // check again for the case socket closed in above events
+ if (self.skipReconnect) return;
+ self.open(function (err) {
+ if (err) {
+ debug$1("reconnect attempt error");
+ self._reconnecting = false;
+ self.reconnect();
+ _this4.emitReserved("reconnect_error", err);
+ } else {
+ debug$1("reconnect success");
+ self.onreconnect();
+ }
+ });
+ }, delay);
+ if (this.opts.autoUnref) {
+ timer.unref();
+ }
+ this.subs.push(function () {
+ _this4.clearTimeoutFn(timer);
+ });
+ }
+ }
+ /**
+ * Called upon successful reconnect.
+ *
+ * @private
+ */;
+ _proto.onreconnect = function onreconnect() {
+ var attempt = this.backoff.attempts;
+ this._reconnecting = false;
+ this.backoff.reset();
+ this.emitReserved("reconnect", attempt);
+ };
+ return Manager;
+ }(Emitter);
+
+ var debug = debugModule("socket.io-client"); // debug()
+ /**
+ * Managers cache.
+ */
+ var cache = {};
+ function lookup(uri, opts) {
+ if (_typeof(uri) === "object") {
+ opts = uri;
+ uri = undefined;
+ }
+ opts = opts || {};
+ var parsed = url(uri, opts.path || "/socket.io");
+ var source = parsed.source;
+ var id = parsed.id;
+ var path = parsed.path;
+ var sameNamespace = cache[id] && path in cache[id]["nsps"];
+ var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
+ var io;
+ if (newConnection) {
+ debug("ignoring socket cache for %s", source);
+ io = new Manager(source, opts);
+ } else {
+ if (!cache[id]) {
+ debug("new io instance for %s", source);
+ cache[id] = new Manager(source, opts);
+ }
+ io = cache[id];
+ }
+ if (parsed.query && !opts.query) {
+ opts.query = parsed.queryKey;
+ }
+ return io.socket(parsed.path, opts);
+ }
+ // so that "lookup" can be used both as a function (e.g. `io(...)`) and as a
+ // namespace (e.g. `io.connect(...)`), for backward compatibility
+ _extends(lookup, {
+ Manager: Manager,
+ Socket: Socket,
+ io: lookup,
+ connect: lookup
+ });
+
+ return lookup;
+
+}));
+//# sourceMappingURL=socket.io.js.map
diff --git a/public/manifest.json b/public/manifest.json
index fc93f03..2532fcd 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -8,10 +8,10 @@
"theme_color": "#000000",
"icons": [
{
- "src": "public/icon.png",
+ "src": "<% if(path_prefix){ %><%- path_prefix -%><% } %>public/icon.png",
"type": "image/png",
"sizes": "180x180"
}
],
- "start_url": "/"
+ "start_url": "<% if(path_prefix){ %><%- path_prefix -%><% } %>"
}
- 
- 
+ { %><%- path_prefix -%><% } %>public/css/files.svg "File Manager")
+ { %><%- path_prefix -%><% } %>public/css/speaker.svg "Enable Audio")
+ { %><%- path_prefix -%><% } %>public/css/mic.svg "Enable Microphone")