!(function (t, e) { "object" == typeof exports && "object" == typeof module ? (module.exports = e()) : "function" == typeof define && define.amd ? define([], e) : "object" == typeof exports ? (exports.io = e()) : (t.io = e()); })(this, function () { return (function (t) { function e(r) { if (n[r]) return n[r].exports; var o = (n[r] = { exports: {}, id: r, loaded: !1 }); return t[r].call(o.exports, o, o.exports, e), (o.loaded = !0), o.exports; } var n = {}; return (e.m = t), (e.c = n), (e.p = ""), e(0); })([ function (t, e, n) { "use strict"; function r(t, e) { "object" === ("undefined" == typeof t ? "undefined" : o(t)) && ((e = t), (t = void 0)), (e = e || {}); var n, r = i(t), s = r.source, u = r.id, h = r.path, f = p[u] && h in p[u].nsps, l = e.forceNew || e["force new connection"] || !1 === e.multiplex || f; return ( l ? 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"symbol" : typeof t; }, i = n(1), s = n(7), a = n(13), c = n(3)("socket.io-client"); t.exports = e = r; var p = (e.managers = {}); (e.protocol = s.protocol), (e.connect = r), (e.Manager = n(13)), (e.Socket = n(39)); }, function (t, e, n) { (function (e) { "use strict"; function r(t, n) { var r = t; (n = n || e.location), null == t && (t = n.protocol + "//" + n.host), "string" == typeof t && ("/" === t.charAt(0) && (t = "/" === t.charAt(1) ? n.protocol + t : n.host + t), /^(https?|wss?):\/\//.test(t) || (i("protocol-less url %s", t), (t = "undefined" != typeof n ? n.protocol + "//" + t : "https://" + t)), i("parse %s", t), (r = o(t))), r.port || (/^(http|ws)$/.test(r.protocol) ? (r.port = "80") : /^(http|ws)s$/.test(r.protocol) && (r.port = "443")), (r.path = r.path || "/"); var s = r.host.indexOf(":") !== -1, a = s ? "[" + r.host + "]" : r.host; return ( (r.id = r.protocol + "://" + a + ":" + r.port), (r.href = r.protocol + "://" + a + (n && n.port === r.port ? "" : ":" + r.port)), r ); } var o = n(2), i = n(3)("socket.io-client:url"); t.exports = r; }).call( e, (function () { return this; })() ); }, function (t, e) { var n = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/, r = [ "source", "protocol", "authority", "userInfo", "user", "password", "host", "port", "relative", "path", "directory", "file", "query", "anchor", ]; t.exports = function (t) { var e = t, o = t.indexOf("["), i = t.indexOf("]"); o != -1 && i != -1 && (t = t.substring(0, o) + t.substring(o, i).replace(/:/g, ";") + t.substring(i, t.length)); for (var s = n.exec(t || ""), a = {}, c = 14; c--; ) a[r[c]] = s[c] || ""; return ( o != -1 && i != -1 && ((a.source = e), (a.host = a.host .substring(1, a.host.length - 1) .replace(/;/g, ":")), (a.authority = a.authority .replace("[", "") .replace("]", "") .replace(/;/g, ":")), (a.ipv6uri = !0)), a ); }; }, function (t, e, n) { (function (r) { function o() { return ( !( "undefined" == typeof window || !window.process || "renderer" !== window.process.type ) || ("undefined" != typeof document && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) || ("undefined" != typeof window && window.console && (window.console.firebug || (window.console.exception && window.console.table))) || ("undefined" != typeof navigator && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) || ("undefined" != typeof navigator && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/)) ); } function i(t) { var n = this.useColors; if ( ((t[0] = (n ? 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(d = l.concat(d)) : (m = -1), d.length && a()); } function a() { if (!y) { var t = o(s); y = !0; for (var e = d.length; e; ) { for (l = d, d = []; ++m < e; ) l && l[m].run(); (m = -1), (e = d.length); } (l = null), (y = !1), i(t); } } function c(t, e) { (this.fun = t), (this.array = e); } function p() {} var u, h, f = (t.exports = {}); !(function () { try { u = "function" == typeof setTimeout ? setTimeout : n; } catch (t) { u = n; } try { h = "function" == typeof clearTimeout ? clearTimeout : r; } catch (t) { h = r; } })(); var l, d = [], y = !1, m = -1; (f.nextTick = function (t) { var e = new Array(arguments.length - 1); if (arguments.length > 1) for (var n = 1; n < arguments.length; n++) e[n - 1] = arguments[n]; d.push(new c(t, e)), 1 !== d.length || y || o(a); }), (c.prototype.run = function () { this.fun.apply(null, this.array); }), (f.title = "browser"), (f.browser = !0), (f.env = {}), (f.argv = []), (f.version = ""), (f.versions = {}), (f.on = p), (f.addListener = p), (f.once = p), (f.off = p), (f.removeListener = p), (f.removeAllListeners = p), (f.emit = p), (f.prependListener = p), (f.prependOnceListener = p), (f.listeners = function (t) { return []; }), (f.binding = function (t) { throw new Error("process.binding is not supported"); }), (f.cwd = function () { return "/"; }), (f.chdir = function (t) { throw new Error("process.chdir is not supported"); }), (f.umask = function () { return 0; }); }, function (t, e, n) { function r(t) { var n, r = 0; for (n in t) (r = (r << 5) - r + t.charCodeAt(n)), (r |= 0); return e.colors[Math.abs(r) % e.colors.length]; } function o(t) { function n() { if (n.enabled) { var t = n, r = +new Date(), o = r - (p || r); (t.diff = o), (t.prev = p), (t.curr = r), (p = r); for (var i = new Array(arguments.length), s = 0; s < i.length; s++) i[s] = arguments[s]; (i[0] = e.coerce(i[0])), "string" != typeof i[0] && i.unshift("%O"); var a = 0; (i[0] = i[0].replace(/%([a-zA-Z%])/g, function (n, r) { if ("%%" === n) return n; a++; var o = e.formatters[r]; if ("function" == typeof o) { var s = i[a]; (n = o.call(t, s)), i.splice(a, 1), a--; } return n; })), e.formatArgs.call(t, i); var c = n.log || e.log || console.log.bind(console); c.apply(t, i); } } return ( (n.namespace = t), (n.enabled = e.enabled(t)), (n.useColors = e.useColors()), (n.color = r(t)), "function" == typeof e.init && e.init(n), n ); } function i(t) { e.save(t), (e.names = []), (e.skips = []); for ( var n = ("string" == typeof t ? t : "").split(/[\s,]+/), r = n.length, o = 0; o < r; o++ ) n[o] && ((t = n[o].replace(/\*/g, ".*?")), "-" === t[0] ? e.skips.push(new RegExp("^" + t.substr(1) + "$")) : e.names.push(new RegExp("^" + t + "$"))); } function s() { e.enable(""); } function a(t) { var n, r; for (n = 0, r = e.skips.length; n < r; n++) if (e.skips[n].test(t)) return !1; for (n = 0, r = e.names.length; n < r; n++) if (e.names[n].test(t)) return !0; return !1; } function c(t) { return t instanceof Error ? t.stack || t.message : t; } (e = t.exports = o.debug = o["default"] = o), (e.coerce = c), (e.disable = s), (e.enable = i), (e.enabled = a), (e.humanize = n(6)), (e.names = []), (e.skips = []), (e.formatters = {}); var p; }, function (t, e) { function n(t) { if (((t = String(t)), !(t.length > 100))) { var e = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec( t ); if (e) { var n = parseFloat(e[1]), r = (e[2] || "ms").toLowerCase(); switch (r) { case "years": case "year": case "yrs": case "yr": case "y": return n * u; case "days": case "day": case "d": return n * p; case "hours": case "hour": case "hrs": case "hr": case "h": return n * c; case "minutes": case "minute": case "mins": case "min": case "m": return n * a; 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; } } } } function r(t) { return t >= p ? Math.round(t / p) + "d" : t >= c ? Math.round(t / c) + "h" : t >= a ? Math.round(t / a) + "m" : t >= s ? Math.round(t / s) + "s" : t + "ms"; } function o(t) { return ( i(t, p, "day") || i(t, c, "hour") || i(t, a, "minute") || i(t, s, "second") || t + " ms" ); } function i(t, e, n) { if (!(t < e)) return t < 1.5 * e ? Math.floor(t / e) + " " + n : Math.ceil(t / e) + " " + n + "s"; } var s = 1e3, a = 60 * s, c = 60 * a, p = 24 * c, u = 365.25 * p; t.exports = function (t, e) { e = e || {}; var i = typeof t; if ("string" === i && t.length > 0) return n(t); if ("number" === i && isNaN(t) === !1) return e["long"] ? o(t) : r(t); throw new Error( "val is not a non-empty string or a valid number. val=" + JSON.stringify(t) ); }; }, function (t, e, n) { function r() {} function o(t) { var n = "" + t.type; return ( (e.BINARY_EVENT !== t.type && e.BINARY_ACK !== t.type) || (n += t.attachments + "-"), t.nsp && "/" !== t.nsp && (n += t.nsp + ","), null != t.id && (n += t.id), null != t.data && (n += JSON.stringify(t.data)), h("encoded %j as %s", t, n), n ); } function i(t, e) { function n(t) { var n = d.deconstructPacket(t), r = o(n.packet), i = n.buffers; i.unshift(r), e(i); } d.removeBlobs(t, n); } function s() { this.reconstructor = null; } function a(t) { var n = 0, r = { type: Number(t.charAt(0)) }; if (null == e.types[r.type]) return u(); if (e.BINARY_EVENT === r.type || e.BINARY_ACK === r.type) { for ( var o = ""; "-" !== t.charAt(++n) && ((o += t.charAt(n)), n != t.length); ); if (o != Number(o) || "-" !== t.charAt(n)) throw new Error("Illegal attachments"); r.attachments = Number(o); } if ("/" === t.charAt(n + 1)) for (r.nsp = ""; ++n; ) { var i = t.charAt(n); if ("," === i) break; if (((r.nsp += i), n === t.length)) break; } else r.nsp = "/"; var s = t.charAt(n + 1); if ("" !== s && Number(s) == s) { for (r.id = ""; ++n; ) { var i = t.charAt(n); if (null == i || Number(i) != i) { --n; break; } if (((r.id += t.charAt(n)), n === t.length)) break; } r.id = Number(r.id); } return ( t.charAt(++n) && (r = c(r, t.substr(n))), h("decoded %s as %j", t, r), r ); } function c(t, e) { try { t.data = JSON.parse(e); } catch (n) { return u(); } return t; } function p(t) { (this.reconPack = t), (this.buffers = []); } function u() { return { type: e.ERROR, data: "parser error" }; } var h = n(3)("socket.io-parser"), f = n(8), l = n(9), d = n(11), y = n(12); (e.protocol = 4), (e.types = [ "CONNECT", "DISCONNECT", "EVENT", "ACK", "ERROR", "BINARY_EVENT", "BINARY_ACK", ]), (e.CONNECT = 0), (e.DISCONNECT = 1), (e.EVENT = 2), (e.ACK = 3), (e.ERROR = 4), (e.BINARY_EVENT = 5), (e.BINARY_ACK = 6), (e.Encoder = r), (e.Decoder = s), (r.prototype.encode = function (t, n) { if ( ((t.type !== e.EVENT && t.type !== e.ACK) || !l(t.data) || (t.type = t.type === e.EVENT ? e.BINARY_EVENT : e.BINARY_ACK), h("encoding packet %j", t), e.BINARY_EVENT === t.type || e.BINARY_ACK === t.type) ) i(t, n); else { var r = o(t); n([r]); } }), f(s.prototype), (s.prototype.add = function (t) { var n; if ("string" == typeof t) (n = a(t)), e.BINARY_EVENT === n.type || e.BINARY_ACK === n.type ? ((this.reconstructor = new p(n)), 0 === this.reconstructor.reconPack.attachments && this.emit("decoded", n)) : this.emit("decoded", n); else { if (!y(t) && !t.base64) throw new Error("Unknown type: " + t); if (!this.reconstructor) throw new Error( "got binary data when not reconstructing a packet" ); (n = this.reconstructor.takeBinaryData(t)), n && ((this.reconstructor = null), this.emit("decoded", n)); } }), (s.prototype.destroy = function () { this.reconstructor && this.reconstructor.finishedReconstruction(); }), (p.prototype.takeBinaryData = function (t) { if ( (this.buffers.push(t), this.buffers.length === this.reconPack.attachments) ) { var e = d.reconstructPacket(this.reconPack, this.buffers); return this.finishedReconstruction(), e; } return null; }), (p.prototype.finishedReconstruction = function () { (this.reconPack = null), (this.buffers = []); }); }, function (t, e, n) { function r(t) { if (t) return o(t); } function o(t) { for (var e in r.prototype) t[e] = r.prototype[e]; return t; } (t.exports = r), (r.prototype.on = r.prototype.addEventListener = function (t, e) { return ( (this._callbacks = this._callbacks || {}), (this._callbacks["$" + t] = this._callbacks["$" + t] || []).push( e ), this ); }), (r.prototype.once = function (t, e) { function n() { this.off(t, n), e.apply(this, arguments); } return (n.fn = e), this.on(t, n), this; }), (r.prototype.off = r.prototype.removeListener = r.prototype.removeAllListeners = r.prototype.removeEventListener = function (t, e) { if ( ((this._callbacks = this._callbacks || {}), 0 == arguments.length) ) return (this._callbacks = {}), this; var n = this._callbacks["$" + t]; if (!n) return this; if (1 == arguments.length) return delete this._callbacks["$" + t], this; for (var r, o = 0; o < n.length; o++) if (((r = n[o]), r === e || r.fn === e)) { n.splice(o, 1); break; } return this; }), (r.prototype.emit = function (t) { this._callbacks = this._callbacks || {}; var e = [].slice.call(arguments, 1), n = this._callbacks["$" + t]; if (n) { n = n.slice(0); for (var r = 0, o = n.length; r < o; ++r) n[r].apply(this, e); } return this; }), (r.prototype.listeners = function (t) { return ( (this._callbacks = this._callbacks || {}), this._callbacks["$" + t] || [] ); }), (r.prototype.hasListeners = function (t) { return !!this.listeners(t).length; }); }, function (t, e, n) { (function (e) { function r(t) { if (!t || "object" != typeof t) return !1; if (o(t)) { for (var n = 0, i = t.length; n < i; n++) if (r(t[n])) return !0; return !1; } if ( ("function" == typeof e.Buffer && e.Buffer.isBuffer && e.Buffer.isBuffer(t)) || ("function" == typeof e.ArrayBuffer && t instanceof ArrayBuffer) || (s && t instanceof Blob) || (a && t instanceof File) ) return !0; if ( t.toJSON && "function" == typeof t.toJSON && 1 === arguments.length ) return r(t.toJSON(), !0); for (var c in t) if (Object.prototype.hasOwnProperty.call(t, c) && r(t[c])) return !0; return !1; } var o = n(10), i = Object.prototype.toString, s = "function" == typeof e.Blob || "[object BlobConstructor]" === i.call(e.Blob), a = "function" == typeof e.File || "[object FileConstructor]" === i.call(e.File); t.exports = r; }).call( e, (function () { return this; })() ); }, function (t, e) { var n = {}.toString; t.exports = Array.isArray || function (t) { return "[object Array]" == n.call(t); }; }, function (t, e, n) { (function (t) { function r(t, e) { if (!t) return t; if (s(t)) { var n = { _placeholder: !0, num: e.length }; return e.push(t), n; } if (i(t)) { for (var o = new Array(t.length), a = 0; a < t.length; a++) o[a] = r(t[a], e); return o; } if ("object" == typeof t && !(t instanceof Date)) { var o = {}; for (var c in t) o[c] = r(t[c], e); return o; } return t; } function o(t, e) { if (!t) return t; if (t && t._placeholder) return e[t.num]; if (i(t)) for (var n = 0; n < t.length; n++) t[n] = o(t[n], e); else if ("object" == typeof t) for (var r in t) t[r] = o(t[r], e); return t; } var i = n(10), s = n(12), a = Object.prototype.toString, c = "function" == typeof t.Blob || "[object BlobConstructor]" === a.call(t.Blob), p = "function" == typeof t.File || "[object FileConstructor]" === a.call(t.File); (e.deconstructPacket = function (t) { var e = [], n = t.data, o = t; return ( (o.data = r(n, e)), (o.attachments = e.length), { packet: o, buffers: e } ); }), (e.reconstructPacket = function (t, e) { return (t.data = o(t.data, e)), (t.attachments = void 0), t; }), (e.removeBlobs = function (t, e) { function n(t, a, u) { if (!t) return t; if ((c && t instanceof Blob) || (p && t instanceof File)) { r++; var h = new FileReader(); (h.onload = function () { u ? (u[a] = this.result) : (o = this.result), --r || e(o); }), h.readAsArrayBuffer(t); } else if (i(t)) for (var f = 0; f < t.length; f++) n(t[f], f, t); else if ("object" == typeof t && !s(t)) for (var l in t) n(t[l], l, t); } var r = 0, o = t; n(o), r || e(o); }); }).call( e, (function () { return this; })() ); }, function (t, e) { (function (e) { function n(t) { return ( (e.Buffer && e.Buffer.isBuffer(t)) || (e.ArrayBuffer && t instanceof ArrayBuffer) ); } t.exports = n; }).call( e, (function () { return this; })() ); }, function (t, e, n) { "use strict"; function r(t, e) { if (!(this instanceof r)) return new r(t, e); t && "object" === ("undefined" == typeof t ? "undefined" : o(t)) && ((e = t), (t = void 0)), (e = e || {}), (e.path = e.path || "/socket.io"), (this.nsps = {}), (this.subs = []), (this.opts = e), this.reconnection(e.reconnection !== !1), this.reconnectionAttempts(e.reconnectionAttempts || 1 / 0), this.reconnectionDelay(e.reconnectionDelay || 1e3), this.reconnectionDelayMax(e.reconnectionDelayMax || 5e3), this.randomizationFactor(e.randomizationFactor || 0.5), (this.backoff = new l({ min: this.reconnectionDelay(), max: this.reconnectionDelayMax(), jitter: this.randomizationFactor(), })), this.timeout(null == e.timeout ? 2e4 : e.timeout), (this.readyState = "closed"), (this.uri = t), (this.connecting = []), (this.lastPing = null), (this.encoding = !1), (this.packetBuffer = []); var n = e.parser || c; (this.encoder = new n.Encoder()), (this.decoder = new n.Decoder()), (this.autoConnect = e.autoConnect !== !1), this.autoConnect && this.open(); } var o = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (t) { return typeof t; } : function (t) { return t && "function" == typeof Symbol && t.constructor === Symbol && t !== Symbol.prototype ? "symbol" : typeof t; }, i = n(14), s = n(39), a = n(8), c = n(7), p = n(41), u = n(42), h = n(3)("socket.io-client:manager"), f = n(37), l = n(43), d = Object.prototype.hasOwnProperty; (t.exports = r), (r.prototype.emitAll = function () { this.emit.apply(this, arguments); for (var t in this.nsps) d.call(this.nsps, t) && this.nsps[t].emit.apply(this.nsps[t], arguments); }), (r.prototype.updateSocketIds = function () { for (var t in this.nsps) d.call(this.nsps, t) && (this.nsps[t].id = this.generateId(t)); }), (r.prototype.generateId = function (t) { return ("/" === t ? "" : t + "#") + this.engine.id; }), a(r.prototype), (r.prototype.reconnection = function (t) { return arguments.length ? ((this._reconnection = !!t), this) : this._reconnection; }), (r.prototype.reconnectionAttempts = function (t) { return arguments.length ? ((this._reconnectionAttempts = t), this) : this._reconnectionAttempts; }), (r.prototype.reconnectionDelay = function (t) { return arguments.length ? ((this._reconnectionDelay = t), this.backoff && this.backoff.setMin(t), this) : this._reconnectionDelay; }), (r.prototype.randomizationFactor = function (t) { return arguments.length ? ((this._randomizationFactor = t), this.backoff && this.backoff.setJitter(t), this) : this._randomizationFactor; }), (r.prototype.reconnectionDelayMax = function (t) { return arguments.length ? ((this._reconnectionDelayMax = t), this.backoff && this.backoff.setMax(t), this) : this._reconnectionDelayMax; }), (r.prototype.timeout = function (t) { return arguments.length ? ((this._timeout = t), this) : this._timeout; }), (r.prototype.maybeReconnectOnOpen = function () { !this.reconnecting && this._reconnection && 0 === this.backoff.attempts && this.reconnect(); }), (r.prototype.open = r.prototype.connect = function (t, e) { if ( (h("readyState %s", this.readyState), ~this.readyState.indexOf("open")) ) return this; h("opening %s", this.uri), (this.engine = i(this.uri, this.opts)); var n = this.engine, r = this; (this.readyState = "opening"), (this.skipReconnect = !1); var o = p(n, "open", function () { r.onopen(), t && t(); }), s = p(n, "error", function (e) { if ( (h("connect_error"), r.cleanup(), (r.readyState = "closed"), r.emitAll("connect_error", e), t) ) { var n = new Error("Connection error"); (n.data = e), t(n); } else r.maybeReconnectOnOpen(); }); if (!1 !== this._timeout) { var a = this._timeout; h("connect attempt will timeout after %d", a); var c = setTimeout(function () { h("connect attempt timed out after %d", a), o.destroy(), n.close(), n.emit("error", "timeout"), r.emitAll("connect_timeout", a); }, a); this.subs.push({ destroy: function () { clearTimeout(c); }, }); } return this.subs.push(o), this.subs.push(s), this; }), (r.prototype.onopen = function () { h("open"), this.cleanup(), (this.readyState = "open"), this.emit("open"); var t = this.engine; this.subs.push(p(t, "data", u(this, "ondata"))), this.subs.push(p(t, "ping", u(this, "onping"))), this.subs.push(p(t, "pong", u(this, "onpong"))), this.subs.push(p(t, "error", u(this, "onerror"))), this.subs.push(p(t, "close", u(this, "onclose"))), this.subs.push(p(this.decoder, "decoded", u(this, "ondecoded"))); }), (r.prototype.onping = function () { (this.lastPing = new Date()), this.emitAll("ping"); }), (r.prototype.onpong = function () { this.emitAll("pong", new Date() - this.lastPing); }), (r.prototype.ondata = function (t) { this.decoder.add(t); }), (r.prototype.ondecoded = function (t) { this.emit("packet", t); }), (r.prototype.onerror = function (t) { h("error", t), this.emitAll("error", t); }), (r.prototype.socket = function (t, e) { function n() { ~f(o.connecting, r) || o.connecting.push(r); } var r = this.nsps[t]; if (!r) { (r = new s(this, t, e)), (this.nsps[t] = r); var o = this; r.on("connecting", n), r.on("connect", function () { r.id = o.generateId(t); }), this.autoConnect && n(); } return r; }), (r.prototype.destroy = function (t) { var e = f(this.connecting, t); ~e && this.connecting.splice(e, 1), this.connecting.length || this.close(); }), (r.prototype.packet = function (t) { h("writing packet %j", t); var e = this; t.query && 0 === t.type && (t.nsp += "?" + t.query), e.encoding ? e.packetBuffer.push(t) : ((e.encoding = !0), this.encoder.encode(t, function (n) { for (var r = 0; r < n.length; r++) e.engine.write(n[r], t.options); (e.encoding = !1), e.processPacketQueue(); })); }), (r.prototype.processPacketQueue = function () { if (this.packetBuffer.length > 0 && !this.encoding) { var t = this.packetBuffer.shift(); this.packet(t); } }), (r.prototype.cleanup = function () { h("cleanup"); for (var t = this.subs.length, e = 0; e < t; e++) { var n = this.subs.shift(); n.destroy(); } (this.packetBuffer = []), (this.encoding = !1), (this.lastPing = null), this.decoder.destroy(); }), (r.prototype.close = r.prototype.disconnect = function () { h("disconnect"), (this.skipReconnect = !0), (this.reconnecting = !1), "opening" === this.readyState && this.cleanup(), this.backoff.reset(), (this.readyState = "closed"), this.engine && this.engine.close(); }), (r.prototype.onclose = function (t) { h("onclose"), this.cleanup(), this.backoff.reset(), (this.readyState = "closed"), this.emit("close", t), this._reconnection && !this.skipReconnect && this.reconnect(); }), (r.prototype.reconnect = function () { if (this.reconnecting || this.skipReconnect) return this; var t = this; if (this.backoff.attempts >= this._reconnectionAttempts) h("reconnect failed"), this.backoff.reset(), this.emitAll("reconnect_failed"), (this.reconnecting = !1); else { var e = this.backoff.duration(); h("will wait %dms before reconnect attempt", e), (this.reconnecting = !0); var n = setTimeout(function () { t.skipReconnect || (h("attempting reconnect"), t.emitAll("reconnect_attempt", t.backoff.attempts), t.emitAll("reconnecting", t.backoff.attempts), t.skipReconnect || t.open(function (e) { e ? (h("reconnect attempt error"), (t.reconnecting = !1), t.reconnect(), t.emitAll("reconnect_error", e.data)) : (h("reconnect success"), t.onreconnect()); })); }, e); this.subs.push({ destroy: function () { clearTimeout(n); }, }); } }), (r.prototype.onreconnect = function () { var t = this.backoff.attempts; (this.reconnecting = !1), this.backoff.reset(), this.updateSocketIds(), this.emitAll("reconnect", t); }); }, function (t, e, n) { t.exports = n(15); }, function (t, e, n) { (t.exports = n(16)), (t.exports.parser = n(23)); }, function (t, e, n) { (function (e) { function r(t, n) { if (!(this instanceof r)) return new r(t, n); (n = n || {}), t && "object" == typeof t && ((n = t), (t = null)), t ? ((t = u(t)), (n.hostname = t.host), (n.secure = "https" === t.protocol || "wss" === t.protocol), (n.port = t.port), t.query && (n.query = t.query)) : n.host && (n.hostname = u(n.host).host), (this.secure = null != n.secure ? n.secure : e.location && "https:" === location.protocol), n.hostname && !n.port && (n.port = this.secure ? "443" : "80"), (this.agent = n.agent || !1), (this.hostname = n.hostname || (e.location ? location.hostname : "localhost")), (this.port = n.port || (e.location && location.port ? location.port : this.secure ? 443 : 80)), (this.query = n.query || {}), "string" == typeof this.query && (this.query = f.decode(this.query)), (this.upgrade = !1 !== n.upgrade), (this.path = (n.path || "/engine.io").replace(/\/$/, "") + "/"), (this.forceJSONP = !!n.forceJSONP), (this.jsonp = !1 !== n.jsonp), (this.forceBase64 = !!n.forceBase64), (this.enablesXDR = !!n.enablesXDR), (this.timestampParam = n.timestampParam || "t"), (this.timestampRequests = n.timestampRequests), (this.transports = n.transports || ["polling", "websocket"]), (this.transportOptions = n.transportOptions || {}), (this.readyState = ""), (this.writeBuffer = []), (this.prevBufferLen = 0), (this.policyPort = n.policyPort || 843), (this.rememberUpgrade = n.rememberUpgrade || !1), (this.binaryType = null), (this.onlyBinaryUpgrades = n.onlyBinaryUpgrades), (this.perMessageDeflate = !1 !== n.perMessageDeflate && (n.perMessageDeflate || {})), !0 === this.perMessageDeflate && (this.perMessageDeflate = {}), this.perMessageDeflate && null == this.perMessageDeflate.threshold && (this.perMessageDeflate.threshold = 1024), (this.pfx = n.pfx || null), (this.key = n.key || null), (this.passphrase = n.passphrase || null), (this.cert = n.cert || null), (this.ca = n.ca || null), (this.ciphers = n.ciphers || null), (this.rejectUnauthorized = void 0 === n.rejectUnauthorized || n.rejectUnauthorized), (this.forceNode = !!n.forceNode); var o = "object" == typeof e && e; o.global === o && (n.extraHeaders && Object.keys(n.extraHeaders).length > 0 && (this.extraHeaders = n.extraHeaders), n.localAddress && (this.localAddress = n.localAddress)), (this.id = null), (this.upgrades = null), (this.pingInterval = null), (this.pingTimeout = null), (this.pingIntervalTimer = null), (this.pingTimeoutTimer = null), this.open(); } function o(t) { var e = {}; for (var n in t) t.hasOwnProperty(n) && (e[n] = t[n]); return e; } var i = n(17), s = n(8), a = n(3)("engine.io-client:socket"), c = n(37), p = n(23), u = n(2), h = n(38), f = n(31); (t.exports = r), (r.priorWebsocketSuccess = !1), s(r.prototype), (r.protocol = p.protocol), (r.Socket = r), (r.Transport = n(22)), (r.transports = n(17)), (r.parser = n(23)), (r.prototype.createTransport = function (t) { a('creating transport "%s"', t); var e = o(this.query); (e.EIO = p.protocol), (e.transport = t); var n = this.transportOptions[t] || {}; this.id && (e.sid = this.id); var r = new i[t]({ query: e, socket: this, agent: n.agent || this.agent, hostname: n.hostname || this.hostname, port: n.port || this.port, secure: n.secure || this.secure, path: n.path || this.path, forceJSONP: n.forceJSONP || this.forceJSONP, jsonp: n.jsonp || this.jsonp, forceBase64: n.forceBase64 || this.forceBase64, enablesXDR: n.enablesXDR || this.enablesXDR, timestampRequests: n.timestampRequests || this.timestampRequests, timestampParam: n.timestampParam || this.timestampParam, policyPort: n.policyPort || this.policyPort, pfx: n.pfx || this.pfx, key: n.key || this.key, passphrase: n.passphrase || this.passphrase, cert: n.cert || this.cert, ca: n.ca || this.ca, ciphers: n.ciphers || this.ciphers, rejectUnauthorized: n.rejectUnauthorized || this.rejectUnauthorized, perMessageDeflate: n.perMessageDeflate || this.perMessageDeflate, extraHeaders: n.extraHeaders || this.extraHeaders, forceNode: n.forceNode || this.forceNode, localAddress: n.localAddress || this.localAddress, requestTimeout: n.requestTimeout || this.requestTimeout, protocols: n.protocols || void 0, }); return r; }), (r.prototype.open = function () { var t; if ( this.rememberUpgrade && r.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1 ) t = "websocket"; else { if (0 === this.transports.length) { var e = this; return void setTimeout(function () { e.emit("error", "No transports available"); }, 0); } t = this.transports[0]; } this.readyState = "opening"; try { t = this.createTransport(t); } catch (n) { return this.transports.shift(), void this.open(); } t.open(), this.setTransport(t); }), (r.prototype.setTransport = function (t) { a("setting transport %s", t.name); var e = this; this.transport && (a("clearing existing transport %s", this.transport.name), this.transport.removeAllListeners()), (this.transport = t), t .on("drain", function () { e.onDrain(); }) .on("packet", function (t) { e.onPacket(t); }) .on("error", function (t) { e.onError(t); }) .on("close", function () { e.onClose("transport close"); }); }), (r.prototype.probe = function (t) { function e() { if (f.onlyBinaryUpgrades) { var e = !this.supportsBinary && f.transport.supportsBinary; h = h || e; } h || (a('probe transport "%s" opened', t), u.send([{ type: "ping", data: "probe" }]), u.once("packet", function (e) { if (!h) if ("pong" === e.type && "probe" === e.data) { if ( (a('probe transport "%s" pong', t), (f.upgrading = !0), f.emit("upgrading", u), !u) ) return; (r.priorWebsocketSuccess = "websocket" === u.name), a('pausing current transport "%s"', f.transport.name), f.transport.pause(function () { h || ("closed" !== f.readyState && (a( "changing transport and sending upgrade packet" ), p(), f.setTransport(u), u.send([{ type: "upgrade" }]), f.emit("upgrade", u), (u = null), (f.upgrading = !1), f.flush())); }); } else { a('probe transport "%s" failed', t); var n = new Error("probe error"); (n.transport = u.name), f.emit("upgradeError", n); } })); } function n() { h || ((h = !0), p(), u.close(), (u = null)); } function o(e) { var r = new Error("probe error: " + e); (r.transport = u.name), n(), a('probe transport "%s" failed because of error: %s', t, e), f.emit("upgradeError", r); } function i() { o("transport closed"); } function s() { o("socket closed"); } function c(t) { u && t.name !== u.name && (a('"%s" works - aborting "%s"', t.name, u.name), n()); } function p() { u.removeListener("open", e), u.removeListener("error", o), u.removeListener("close", i), f.removeListener("close", s), f.removeListener("upgrading", c); } a('probing transport "%s"', t); var u = this.createTransport(t, { probe: 1 }), h = !1, f = this; (r.priorWebsocketSuccess = !1), u.once("open", e), u.once("error", o), u.once("close", i), this.once("close", s), this.once("upgrading", c), u.open(); }), (r.prototype.onOpen = function () { if ( (a("socket open"), (this.readyState = "open"), (r.priorWebsocketSuccess = "websocket" === this.transport.name), this.emit("open"), this.flush(), "open" === this.readyState && this.upgrade && this.transport.pause) ) { a("starting upgrade probes"); for (var t = 0, e = this.upgrades.length; t < e; t++) this.probe(this.upgrades[t]); } }), (r.prototype.onPacket = function (t) { if ( "opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState ) switch ( (a('socket receive: type "%s", data "%s"', t.type, t.data), this.emit("packet", t), this.emit("heartbeat"), t.type) ) { case "open": this.onHandshake(h(t.data)); break; case "pong": this.setPing(), this.emit("pong"); break; case "error": var e = new Error("server error"); (e.code = t.data), this.onError(e); break; case "message": this.emit("data", t.data), this.emit("message", t.data); } else a('packet received with socket readyState "%s"', this.readyState); }), (r.prototype.onHandshake = function (t) { this.emit("handshake", t), (this.id = t.sid), (this.transport.query.sid = t.sid), (this.upgrades = this.filterUpgrades(t.upgrades)), (this.pingInterval = t.pingInterval), (this.pingTimeout = t.pingTimeout), this.onOpen(), "closed" !== this.readyState && (this.setPing(), this.removeListener("heartbeat", this.onHeartbeat), this.on("heartbeat", this.onHeartbeat)); }), (r.prototype.onHeartbeat = function (t) { clearTimeout(this.pingTimeoutTimer); var e = this; e.pingTimeoutTimer = setTimeout(function () { "closed" !== e.readyState && e.onClose("ping timeout"); }, t || e.pingInterval + e.pingTimeout); }), (r.prototype.setPing = function () { var t = this; clearTimeout(t.pingIntervalTimer), (t.pingIntervalTimer = setTimeout(function () { a( "writing ping packet - expecting pong within %sms", t.pingTimeout ), t.ping(), t.onHeartbeat(t.pingTimeout); }, t.pingInterval)); }), (r.prototype.ping = function () { var t = this; this.sendPacket("ping", function () { t.emit("ping"); }); }), (r.prototype.onDrain = function () { this.writeBuffer.splice(0, this.prevBufferLen), (this.prevBufferLen = 0), 0 === this.writeBuffer.length ? this.emit("drain") : this.flush(); }), (r.prototype.flush = function () { "closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length && (a("flushing %d packets in socket", this.writeBuffer.length), this.transport.send(this.writeBuffer), (this.prevBufferLen = this.writeBuffer.length), this.emit("flush")); }), (r.prototype.write = r.prototype.send = function (t, e, n) { return this.sendPacket("message", t, e, n), this; }), (r.prototype.sendPacket = function (t, e, n, r) { if ( ("function" == typeof e && ((r = e), (e = void 0)), "function" == typeof n && ((r = n), (n = null)), "closing" !== this.readyState && "closed" !== this.readyState) ) { (n = n || {}), (n.compress = !1 !== n.compress); var o = { type: t, data: e, options: n }; this.emit("packetCreate", o), this.writeBuffer.push(o), r && this.once("flush", r), this.flush(); } }), (r.prototype.close = function () { function t() { r.onClose("forced close"), a("socket closing - telling transport to close"), r.transport.close(); } function e() { r.removeListener("upgrade", e), r.removeListener("upgradeError", e), t(); } function n() { r.once("upgrade", e), r.once("upgradeError", e); } if ("opening" === this.readyState || "open" === this.readyState) { this.readyState = "closing"; var r = this; this.writeBuffer.length ? this.once("drain", function () { this.upgrading ? n() : t(); }) : this.upgrading ? n() : t(); } return this; }), (r.prototype.onError = function (t) { a("socket error %j", t), (r.priorWebsocketSuccess = !1), this.emit("error", t), this.onClose("transport error", t); }), (r.prototype.onClose = function (t, e) { if ( "opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState ) { a('socket close with reason: "%s"', t); var n = this; clearTimeout(this.pingIntervalTimer), clearTimeout(this.pingTimeoutTimer), this.transport.removeAllListeners("close"), this.transport.close(), this.transport.removeAllListeners(), (this.readyState = "closed"), (this.id = null), this.emit("close", t, e), (n.writeBuffer = []), (n.prevBufferLen = 0); } }), (r.prototype.filterUpgrades = function (t) { for (var e = [], n = 0, r = t.length; n < r; n++) ~c(this.transports, t[n]) && e.push(t[n]); return e; }); }).call( e, (function () { return this; })() ); }, function (t, e, n) { (function (t) { function r(e) { var n, r = !1, a = !1, c = !1 !== e.jsonp; if (t.location) { var p = "https:" === location.protocol, u = location.port; u || (u = p ? 443 : 80), (r = e.hostname !== location.hostname || u !== e.port), (a = e.secure !== p); } if ( ((e.xdomain = r), (e.xscheme = a), (n = new o(e)), "open" in n && !e.forceJSONP) ) return new i(e); if (!c) throw new Error("JSONP disabled"); return new s(e); } var o = n(18), i = n(20), s = n(34), a = n(35); (e.polling = r), (e.websocket = a); }).call( e, (function () { return this; })() ); }, function (t, e, n) { (function (e) { var r = n(19); t.exports = function (t) { var n = t.xdomain, o = t.xscheme, i = t.enablesXDR; try { if ("undefined" != typeof XMLHttpRequest && (!n || r)) return new XMLHttpRequest(); } catch (s) {} try { if ("undefined" != typeof XDomainRequest && !o && i) return new XDomainRequest(); } catch (s) {} if (!n) try { return new e[["Active"].concat("Object").join("X")]( "Microsoft.XMLHTTP" ); } catch (s) {} }; }).call( e, (function () { return this; })() ); }, function (t, e) { try { t.exports = "undefined" != typeof XMLHttpRequest && "withCredentials" in new XMLHttpRequest(); } catch (n) { t.exports = !1; } }, function (t, e, n) { (function (e) { function r() {} function o(t) { if ( (c.call(this, t), (this.requestTimeout = t.requestTimeout), (this.extraHeaders = t.extraHeaders), e.location) ) { var n = "https:" === location.protocol, r = location.port; r || (r = n ? 443 : 80), (this.xd = t.hostname !== e.location.hostname || r !== t.port), (this.xs = t.secure !== n); } } function i(t) { (this.method = t.method || "GET"), (this.uri = t.uri), (this.xd = !!t.xd), (this.xs = !!t.xs), (this.async = !1 !== t.async), (this.data = void 0 !== t.data ? t.data : null), (this.agent = t.agent), (this.isBinary = t.isBinary), (this.supportsBinary = t.supportsBinary), (this.enablesXDR = t.enablesXDR), (this.requestTimeout = t.requestTimeout), (this.pfx = t.pfx), (this.key = t.key), (this.passphrase = t.passphrase), (this.cert = t.cert), (this.ca = t.ca), (this.ciphers = t.ciphers), (this.rejectUnauthorized = t.rejectUnauthorized), (this.extraHeaders = t.extraHeaders), this.create(); } function s() { for (var t in i.requests) i.requests.hasOwnProperty(t) && i.requests[t].abort(); } var a = n(18), c = n(21), p = n(8), u = n(32), h = n(3)("engine.io-client:polling-xhr"); (t.exports = o), (t.exports.Request = i), u(o, c), (o.prototype.supportsBinary = !0), (o.prototype.request = function (t) { return ( (t = t || {}), (t.uri = this.uri()), (t.xd = this.xd), (t.xs = this.xs), (t.agent = this.agent || !1), (t.supportsBinary = this.supportsBinary), (t.enablesXDR = this.enablesXDR), (t.pfx = this.pfx), (t.key = this.key), (t.passphrase = this.passphrase), (t.cert = this.cert), (t.ca = this.ca), (t.ciphers = this.ciphers), (t.rejectUnauthorized = this.rejectUnauthorized), (t.requestTimeout = this.requestTimeout), (t.extraHeaders = this.extraHeaders), new i(t) ); }), (o.prototype.doWrite = function (t, e) { var n = "string" != typeof t && void 0 !== t, r = this.request({ method: "POST", data: t, isBinary: n }), o = this; r.on("success", e), r.on("error", function (t) { o.onError("xhr post error", t); }), (this.sendXhr = r); }), (o.prototype.doPoll = function () { h("xhr poll"); var t = this.request(), e = this; t.on("data", function (t) { e.onData(t); }), t.on("error", function (t) { e.onError("xhr poll error", t); }), (this.pollXhr = t); }), p(i.prototype), (i.prototype.create = function () { var t = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR, }; (t.pfx = this.pfx), (t.key = this.key), (t.passphrase = this.passphrase), (t.cert = this.cert), (t.ca = this.ca), (t.ciphers = this.ciphers), (t.rejectUnauthorized = this.rejectUnauthorized); var n = (this.xhr = new a(t)), r = this; try { h("xhr open %s: %s", this.method, this.uri), n.open(this.method, this.uri, this.async); try { if (this.extraHeaders) { n.setDisableHeaderCheck && n.setDisableHeaderCheck(!0); for (var o in this.extraHeaders) this.extraHeaders.hasOwnProperty(o) && n.setRequestHeader(o, this.extraHeaders[o]); } } catch (s) {} if ("POST" === this.method) try { this.isBinary ? n.setRequestHeader( "Content-type", "application/octet-stream" ) : n.setRequestHeader( "Content-type", "text/plain;charset=UTF-8" ); } catch (s) {} try { n.setRequestHeader("Accept", "*/*"); } catch (s) {} "withCredentials" in n && (n.withCredentials = !0), this.requestTimeout && (n.timeout = this.requestTimeout), this.hasXDR() ? ((n.onload = function () { r.onLoad(); }), (n.onerror = function () { r.onError(n.responseText); })) : (n.onreadystatechange = function () { if (2 === n.readyState) { var t; try { t = n.getResponseHeader("Content-Type"); } catch (e) {} "application/octet-stream" === t && (n.responseType = "arraybuffer"); } 4 === n.readyState && (200 === n.status || 1223 === n.status ? r.onLoad() : setTimeout(function () { r.onError(n.status); }, 0)); }), h("xhr data %s", this.data), n.send(this.data); } catch (s) { return void setTimeout(function () { r.onError(s); }, 0); } e.document && ((this.index = i.requestsCount++), (i.requests[this.index] = this)); }), (i.prototype.onSuccess = function () { this.emit("success"), this.cleanup(); }), (i.prototype.onData = function (t) { this.emit("data", t), this.onSuccess(); }), (i.prototype.onError = function (t) { this.emit("error", t), this.cleanup(!0); }), (i.prototype.cleanup = function (t) { if ("undefined" != typeof this.xhr && null !== this.xhr) { if ( (this.hasXDR() ? (this.xhr.onload = this.xhr.onerror = r) : (this.xhr.onreadystatechange = r), t) ) try { this.xhr.abort(); } catch (n) {} e.document && delete i.requests[this.index], (this.xhr = null); } }), (i.prototype.onLoad = function () { var t; try { var e; try { e = this.xhr.getResponseHeader("Content-Type"); } catch (n) {} t = "application/octet-stream" === e ? this.xhr.response || this.xhr.responseText : this.xhr.responseText; } catch (n) { this.onError(n); } null != t && this.onData(t); }), (i.prototype.hasXDR = function () { return ( "undefined" != typeof e.XDomainRequest && !this.xs && this.enablesXDR ); }), (i.prototype.abort = function () { this.cleanup(); }), (i.requestsCount = 0), (i.requests = {}), e.document && (e.attachEvent ? e.attachEvent("onunload", s) : e.addEventListener && e.addEventListener("beforeunload", s, !1)); }).call( e, (function () { return this; })() ); }, function (t, e, n) { function r(t) { var e = t && t.forceBase64; (u && !e) || (this.supportsBinary = !1), o.call(this, t); } var o = n(22), i = n(31), s = n(23), a = n(32), c = n(33), p = n(3)("engine.io-client:polling"); t.exports = r; var u = (function () { var t = n(18), e = new t({ xdomain: !1 }); return null != e.responseType; })(); a(r, o), (r.prototype.name = "polling"), (r.prototype.doOpen = function () { this.poll(); }), (r.prototype.pause = function (t) { function e() { p("paused"), (n.readyState = "paused"), t(); } var n = this; if (((this.readyState = "pausing"), this.polling || !this.writable)) { var r = 0; this.polling && (p("we are currently polling - waiting to pause"), r++, this.once("pollComplete", function () { p("pre-pause polling complete"), --r || e(); })), this.writable || (p("we are currently writing - waiting to pause"), r++, this.once("drain", function () { p("pre-pause writing complete"), --r || e(); })); } else e(); }), (r.prototype.poll = function () { p("polling"), (this.polling = !0), this.doPoll(), this.emit("poll"); }), (r.prototype.onData = function (t) { var e = this; p("polling got data %s", t); var n = function (t, n, r) { return ( "opening" === e.readyState && e.onOpen(), "close" === t.type ? (e.onClose(), !1) : void e.onPacket(t) ); }; s.decodePayload(t, this.socket.binaryType, n), "closed" !== this.readyState && ((this.polling = !1), this.emit("pollComplete"), "open" === this.readyState ? this.poll() : p('ignoring poll - transport state "%s"', this.readyState)); }), (r.prototype.doClose = function () { function t() { p("writing close packet"), e.write([{ type: "close" }]); } var e = this; "open" === this.readyState ? (p("transport open - closing"), t()) : (p("transport not open - deferring close"), this.once("open", t)); }), (r.prototype.write = function (t) { var e = this; this.writable = !1; var n = function () { (e.writable = !0), e.emit("drain"); }; s.encodePayload(t, this.supportsBinary, function (t) { e.doWrite(t, n); }); }), (r.prototype.uri = function () { var t = this.query || {}, e = this.secure ? 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void 0 : e.data.buffer || e.data; if (t.ArrayBuffer && c instanceof ArrayBuffer) return o(e, n, a); if (k && c instanceof t.Blob) return s(e, n, a); if (c && c.base64) return r(e, a); var p = v[e.type]; return ( void 0 !== e.data && (p += i ? d.encode(String(e.data), { strict: !1 }) : String(e.data)), a("" + p) ); }), (e.encodeBase64Packet = function (n, r) { var o = "b" + e.packets[n.type]; if (k && n.data instanceof t.Blob) { var i = new FileReader(); return ( (i.onload = function () { var t = i.result.split(",")[1]; r(o + t); }), i.readAsDataURL(n.data) ); } var s; try { s = String.fromCharCode.apply(null, new Uint8Array(n.data)); } catch (a) { for ( var c = new Uint8Array(n.data), p = new Array(c.length), u = 0; u < c.length; u++ ) p[u] = c[u]; s = String.fromCharCode.apply(null, p); } return (o += t.btoa(s)), r(o); }), (e.decodePacket = function (t, n, r) { if (void 0 === t) return w; if ("string" == typeof t) { if ("b" === t.charAt(0)) return e.decodeBase64Packet(t.substr(1), n); if (r && ((t = a(t)), t === !1)) return w; var o = t.charAt(0); return Number(o) == o && b[o] ? 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