cyshield-sdk/lib/index.cjs.map

Firewall SDK to protect web apps by validating IP addresses and providing real-time threat monitoring.

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String : Number)(t);\n}\nexport { toPrimitive as default };","import _typeof from \"./typeof.js\";\nimport toPrimitive from \"./toPrimitive.js\";\nfunction toPropertyKey(t) {\n  var i = toPrimitive(t, \"string\");\n  return \"symbol\" == _typeof(i) ? i : i + \"\";\n}\nexport { toPropertyKey as default };","import toPropertyKey from \"./toPropertyKey.js\";\nfunction _defineProperty(e, r, t) {\n  return (r = toPropertyKey(r)) in e ? Object.defineProperty(e, r, {\n    value: t,\n    enumerable: !0,\n    configurable: !0,\n    writable: !0\n  }) : e[r] = t, e;\n}\nexport { _defineProperty as default };","const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach((key) => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n","import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data.arrayBuffer().then(toArray).then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, (encoded) => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n","// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n","import { ERROR_PACKET, PACKET_TYPES_REVERSE, } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType),\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType),\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1),\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type],\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n","import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET, } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, (encodedPacket) => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, (encodedPacket) => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        },\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* State.READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* State.READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* State.READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* State.READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* State.READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* State.READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* State.READ_PAYLOAD */;\n                }\n                else if (state === 2 /* State.READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* State.READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* State.READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        },\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload, };\n","/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n","export const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\nexport const defaultBinaryType = \"arraybuffer\";\nexport function createCookieJar() { }\n","import { globalThisShim as globalThis } from \"./globals.node.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n/**\n * Generates a random 8-characters string.\n */\nexport function randomString() {\n    return (Date.now().toString(36).substring(3) +\n        Math.random().toString(36).substring(2, 5));\n}\n","// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n","import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n        this.supportsBinary = !opts.forceBase64;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n","import { Transport } from \"../transport.js\";\nimport { randomString } from \"../util.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nexport class Polling extends Transport {\n    constructor() {\n        super(...arguments);\n        this._polling = false;\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this._poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this._polling || !this.writable) {\n            let total = 0;\n            if (this._polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    _poll() {\n        this._polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this._polling