From 13c68f8474029c13a816418379ed2557f833697b Mon Sep 17 00:00:00 2001 From: ZhuoQinghui <1302344380@qq.com> Date: Fri, 27 Sep 2024 11:41:21 +0800 Subject: [PATCH] .gitignore --- server/Dockerfile | 9 + server/package.json | 8 + server/pnpm-lock.yaml | 839 ++++++ server/public/index.html | 57 + server/public/index1.html | 62 + server/public/index2.html | 40 + server/public/socket.io.js | 4907 ++++++++++++++++++++++++++++++++++++ server/server.js | 58 + server/server1.js | 37 + server/server2.js | 50 + 10 files changed, 6067 insertions(+) create mode 100644 server/Dockerfile create mode 100644 server/package.json create mode 100644 server/pnpm-lock.yaml create mode 100644 server/public/index.html create mode 100644 server/public/index1.html create mode 100644 server/public/index2.html create mode 100644 server/public/socket.io.js create mode 100644 server/server.js create mode 100644 server/server1.js create mode 100644 server/server2.js diff --git a/server/Dockerfile b/server/Dockerfile new file mode 100644 index 0000000..c8487a2 --- /dev/null +++ b/server/Dockerfile @@ -0,0 +1,9 @@ +FROM node:21.7.2 + +WORKDIR /app + +COPY . . + +EXPOSE 3000 + +CMD ["npm", "start"] diff --git a/server/package.json b/server/package.json new file mode 100644 index 0000000..5a92080 --- /dev/null +++ b/server/package.json @@ -0,0 +1,8 @@ +{ + "dependencies": { + "express": "^4.21.0", + "multer": "1.4.5-lts.1", + "socket.io": "^4.8.0", + "ws": "^8.18.0" + } +} diff --git a/server/pnpm-lock.yaml b/server/pnpm-lock.yaml new file mode 100644 index 0000000..c5461e4 --- /dev/null +++ b/server/pnpm-lock.yaml @@ -0,0 +1,839 @@ +lockfileVersion: '9.0' + +settings: + autoInstallPeers: true + excludeLinksFromLockfile: false + +importers: + + .: + dependencies: + express: + specifier: ^4.21.0 + version: 4.21.0 + multer: + specifier: 1.4.5-lts.1 + version: 1.4.5-lts.1 + socket.io: + specifier: ^4.8.0 + version: 4.8.0 + ws: + specifier: ^8.18.0 + version: 8.18.0 + +packages: + + 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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.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/server/server.js b/server/server.js new file mode 100644 index 0000000..c02a47e --- /dev/null +++ b/server/server.js @@ -0,0 +1,58 @@ +const express = require('express'); +const http = require('http'); +const WebSocket = require('ws'); +const multer = require('multer'); +const path = require('path'); +const fs = require('fs'); + +if (!fs.existsSync(path.join(__dirname, 'public', 'uploads'))) { + fs.mkdirSync(path.join(__dirname, 'public', 'uploads')); +} + +const app = express(); +const server = http.createServer(app); +const wss = new WebSocket.Server({ server }); + +// 设置文件上传存储路径和文件名 +const storage = multer.diskStorage({ + destination: function (req, file, cb) { + cb(null, 'public/uploads/'); + }, + filename: function (req, file, cb) { + cb(null, file.originalname); + } +}); +const upload = multer({ storage: storage }); + +// 静态文件服务 +app.use(express.static(path.join(__dirname, 'public'))); + +// 处理文件上传 +app.post('/upload', upload.single('file'), (req, res) => { + const fileUrl = `http://localhost:3000/uploads/${req.file.filename}`; + wss.clients.forEach(function each(client) { + if (client.readyState === WebSocket.OPEN) { + client.send(JSON.stringify({ type: 'file', url: fileUrl })); + } + }); + res.send('File uploaded successfully!'); +}); + +wss.on('connection', function connection(ws) { + ws.on('message', function incoming(message) { + wss.clients.forEach(function each(client) { + if (client.readyState === WebSocket.OPEN) { + const result = JSON.stringify({ type: 'message', msg: message.toString() }); + client.send(result); + } + }); + }); + + ws.on('close', function close() { + console.log('Client disconnected'); + }); +}); + +server.listen(3000, () => { + console.log('Server started on http://localhost:3000'); +}); diff --git a/server/server1.js b/server/server1.js new file mode 100644 index 0000000..bf64502 --- /dev/null +++ b/server/server1.js @@ -0,0 +1,37 @@ +const express = require('express'); +const http = require('http'); +const socketIo = require('socket.io'); +const path = require('path'); + +const app = express(); +const server1 = http.createServer(app); +const io = socketIo(server1); + +// Serve static files from the public directory +app.use(express.static(path.join(__dirname, 'public'))); + +// Socket.IO connection +io.on('connection', (socket) => { + console.log('A user connected'); + + // Listen for chat message + socket.on('chat message', (msg) => { + io.emit('chat message', msg); // Broadcast the message to all clients + }); + + // Listen for image + socket.on('image', (img) => { + io.emit('image', img); // Broadcast the image to all clients + }); + + // Handle disconnection + socket.on('disconnect', () => { + console.log('User disconnected'); + }); +}); + +// Start the server +const PORT = process.env.PORT || 3000; +server1.listen(PORT, () => { + console.log(`Server running on http://localhost:${PORT}`); +}); diff --git a/server/server2.js b/server/server2.js new file mode 100644 index 0000000..d8682b6 --- /dev/null +++ b/server/server2.js @@ -0,0 +1,50 @@ +const express = require('express'); +const http = require('http'); +const socketIo = require('socket.io'); +const multer = require('multer'); +const path = require('path'); + +const fs = require('fs'); +const uploadDir = './uploads'; + +if (!fs.existsSync(uploadDir)) { + fs.mkdirSync(uploadDir); +} + +const app = express(); +const server = http.createServer(app); +const io = socketIo(server); + +app.use(express.static(path.join(__dirname, 'public'))); + +const storage = multer.diskStorage({ + destination: function (req, file, cb) { + cb(null, 'uploads/'); + }, + filename: function (req, file, cb) { + cb(null, file.originalname); + } +}); + +const upload = multer({ storage: storage }); + +io.on('connection', (socket) => { + console.log('A user connected'); + + socket.on('chat message', (msg) => { + io.emit('chat message', msg); + }); + + socket.on('disconnect', () => { + console.log('User disconnected'); + }); +}); + +app.post('/upload', upload.single('file'), (req, res) => { + io.emit('file', req.file.originalname); + res.send('File uploaded successfully'); +}); + +server.listen(3000, () => { + console.log('Server running on http://localhost:3000'); +});