Updated 40 files, added 37 files, deleted 1103 files and renamed 3905 files (automated)

1 files changed, 0 insertions, 1305 deletions

diff --git a/comproxy/node_modules/ws/lib/websocket.js b/comproxy/node_modules/ws/lib/websocket.js
deleted file mode 100644
index 4391c73..0000000
--- a/comproxy/node_modules/ws/lib/websocket.js
+++ /dev/null
@@ -1,1305 +0,0 @@
-/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^Readable$" }] */
-
-'use strict';
-
-const EventEmitter = require('events');
-const https = require('https');
-const http = require('http');
-const net = require('net');
-const tls = require('tls');
-const { randomBytes, createHash } = require('crypto');
-const { Readable } = require('stream');
-const { URL } = require('url');
-
-const PerMessageDeflate = require('./permessage-deflate');
-const Receiver = require('./receiver');
-const Sender = require('./sender');
-const {
-  BINARY_TYPES,
-  EMPTY_BUFFER,
-  GUID,
-  kForOnEventAttribute,
-  kListener,
-  kStatusCode,
-  kWebSocket,
-  NOOP
-} = require('./constants');
-const {
-  EventTarget: { addEventListener, removeEventListener }
-} = require('./event-target');
-const { format, parse } = require('./extension');
-const { toBuffer } = require('./buffer-util');
-
-const closeTimeout = 30 * 1000;
-const kAborted = Symbol('kAborted');
-const protocolVersions = [8, 13];
-const readyStates = ['CONNECTING', 'OPEN', 'CLOSING', 'CLOSED'];
-const subprotocolRegex = /^[!#$%&'*+\-.0-9A-Z^_`|a-z~]+$/;
-
-/**
- * Class representing a WebSocket.
- *
- * @extends EventEmitter
- */
-class WebSocket extends EventEmitter {
-  /**
-   * Create a new `WebSocket`.
-   *
-   * @param {(String|URL)} address The URL to which to connect
-   * @param {(String|String[])} [protocols] The subprotocols
-   * @param {Object} [options] Connection options
-   */
-  constructor(address, protocols, options) {
-    super();
-
-    this._binaryType = BINARY_TYPES[0];
-    this._closeCode = 1006;
-    this._closeFrameReceived = false;
-    this._closeFrameSent = false;
-    this._closeMessage = EMPTY_BUFFER;
-    this._closeTimer = null;
-    this._extensions = {};
-    this._paused = false;
-    this._protocol = '';
-    this._readyState = WebSocket.CONNECTING;
-    this._receiver = null;
-    this._sender = null;
-    this._socket = null;
-
-    if (address !== null) {
-      this._bufferedAmount = 0;
-      this._isServer = false;
-      this._redirects = 0;
-
-      if (protocols === undefined) {
-        protocols = [];
-      } else if (!Array.isArray(protocols)) {
-        if (typeof protocols === 'object' && protocols !== null) {
-          options = protocols;
-          protocols = [];
-        } else {
-          protocols = [protocols];
-        }
-      }
-
-      initAsClient(this, address, protocols, options);
-    } else {
-      this._isServer = true;
-    }
-  }
-
-  /**
-   * This deviates from the WHATWG interface since ws doesn't support the
-   * required default "blob" type (instead we define a custom "nodebuffer"
-   * type).
-   *
-   * @type {String}
-   */
-  get binaryType() {
-    return this._binaryType;
-  }
-
-  set binaryType(type) {
-    if (!BINARY_TYPES.includes(type)) return;
-
-    this._binaryType = type;
-
-    //
-    // Allow to change `binaryType` on the fly.
-    //
-    if (this._receiver) this._receiver._binaryType = type;
-  }
-
-  /**
-   * @type {Number}
-   */
-  get bufferedAmount() {
-    if (!this._socket) return this._bufferedAmount;
-
-    return this._socket._writableState.length + this._sender._bufferedBytes;
-  }
-
-  /**
-   * @type {String}
-   */
-  get extensions() {
-    return Object.keys(this._extensions).join();
-  }
-
-  /**
-   * @type {Boolean}
-   */
-  get isPaused() {
-    return this._paused;
-  }
-
-  /**
-   * @type {Function}
-   */
-  /* istanbul ignore next */
-  get onclose() {
-    return null;
-  }
-
-  /**
-   * @type {Function}
-   */
-  /* istanbul ignore next */
-  get onerror() {
-    return null;
-  }
-
-  /**
-   * @type {Function}
-   */
-  /* istanbul ignore next */
-  get onopen() {
-    return null;
-  }
-
-  /**
-   * @type {Function}
-   */
-  /* istanbul ignore next */
-  get onmessage() {
-    return null;
-  }
-
-  /**
-   * @type {String}
-   */
-  get protocol() {
-    return this._protocol;
-  }
-
-  /**
-   * @type {Number}
-   */
-  get readyState() {
-    return this._readyState;
-  }
-
-  /**
-   * @type {String}
-   */
-  get url() {
-    return this._url;
-  }
-
-  /**
-   * Set up the socket and the internal resources.
-   *
-   * @param {(net.Socket|tls.Socket)} socket The network socket between the
-   *     server and client
-   * @param {Buffer} head The first packet of the upgraded stream
-   * @param {Object} options Options object
-   * @param {Function} [options.generateMask] The function used to generate the
-   *     masking key
-   * @param {Number} [options.maxPayload=0] The maximum allowed message size
-   * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or
-   *     not to skip UTF-8 validation for text and close messages
-   * @private
-   */
-  setSocket(socket, head, options) {
-    const receiver = new Receiver({
-      binaryType: this.binaryType,
-      extensions: this._extensions,
-      isServer: this._isServer,
-      maxPayload: options.maxPayload,
-      skipUTF8Validation: options.skipUTF8Validation
-    });
-
-    this._sender = new Sender(socket, this._extensions, options.generateMask);
-    this._receiver = receiver;
-    this._socket = socket;
-
-    receiver[kWebSocket] = this;
-    socket[kWebSocket] = this;
-
-    receiver.on('conclude', receiverOnConclude);
-    receiver.on('drain', receiverOnDrain);
-    receiver.on('error', receiverOnError);
-    receiver.on('message', receiverOnMessage);
-    receiver.on('ping', receiverOnPing);
-    receiver.on('pong', receiverOnPong);
-
-    socket.setTimeout(0);
-    socket.setNoDelay();
-
-    if (head.length > 0) socket.unshift(head);
-
-    socket.on('close', socketOnClose);
-    socket.on('data', socketOnData);
-    socket.on('end', socketOnEnd);
-    socket.on('error', socketOnError);
-
-    this._readyState = WebSocket.OPEN;
-    this.emit('open');
-  }
-
-  /**
-   * Emit the `'close'` event.
-   *
-   * @private
-   */
-  emitClose() {
-    if (!this._socket) {
-      this._readyState = WebSocket.CLOSED;
-      this.emit('close', this._closeCode, this._closeMessage);
-      return;
-    }
-
-    if (this._extensions[PerMessageDeflate.extensionName]) {
-      this._extensions[PerMessageDeflate.extensionName].cleanup();
-    }
-
-    this._receiver.removeAllListeners();
-    this._readyState = WebSocket.CLOSED;
-    this.emit('close', this._closeCode, this._closeMessage);
-  }
-
-  /**
-   * Start a closing handshake.
-   *
-   *          +----------+   +-----------+   +----------+
-   *     - - -|ws.close()|-->|close frame|-->|ws.close()|- - -
-   *    |     +----------+   +-----------+   +----------+     |
-   *          +----------+   +-----------+         |
-   * CLOSING  |ws.close()|<--|close frame|<--+-----+       CLOSING
-   *          +----------+   +-----------+   |
-   *    |           |                        |   +---+        |
-   *                +------------------------+-->|fin| - - - -
-   *    |         +---+                      |   +---+
-   *     - - - - -|fin|<---------------------+
-   *              +---+
-   *
-   * @param {Number} [code] Status code explaining why the connection is closing
-   * @param {(String|Buffer)} [data] The reason why the connection is
-   *     closing
-   * @public
-   */
-  close(code, data) {
-    if (this.readyState === WebSocket.CLOSED) return;
-    if (this.readyState === WebSocket.CONNECTING) {
-      const msg = 'WebSocket was closed before the connection was established';
-      return abortHandshake(this, this._req, msg);
-    }
-
-    if (this.readyState === WebSocket.CLOSING) {
-      if (
-        this._closeFrameSent &&
-        (this._closeFrameReceived || this._receiver._writableState.errorEmitted)
-      ) {
-        this._socket.end();
-      }
-
-      return;
-    }
-
-    this._readyState = WebSocket.CLOSING;
-    this._sender.close(code, data, !this._isServer, (err) => {
-      //
-      // This error is handled by the `'error'` listener on the socket. We only
-      // want to know if the close frame has been sent here.
-      //
-      if (err) return;
-
-      this._closeFrameSent = true;
-
-      if (
-        this._closeFrameReceived ||
-        this._receiver._writableState.errorEmitted
-      ) {
-        this._socket.end();
-      }
-    });
-
-    //
-    // Specify a timeout for the closing handshake to complete.
-    //
-    this._closeTimer = setTimeout(
-      this._socket.destroy.bind(this._socket),
-      closeTimeout
-    );
-  }
-
-  /**
-   * Pause the socket.
-   *
-   * @public
-   */
-  pause() {
-    if (
-      this.readyState === WebSocket.CONNECTING ||
-      this.readyState === WebSocket.CLOSED
-    ) {
-      return;
-    }
-
-    this._paused = true;
-    this._socket.pause();
-  }
-
-  /**
-   * Send a ping.
-   *
-   * @param {*} [data] The data to send
-   * @param {Boolean} [mask] Indicates whether or not to mask `data`
-   * @param {Function} [cb] Callback which is executed when the ping is sent
-   * @public
-   */
-  ping(data, mask, cb) {
-    if (this.readyState === WebSocket.CONNECTING) {
-      throw new Error('WebSocket is not open: readyState 0 (CONNECTING)');
-    }
-
-    if (typeof data === 'function') {
-      cb = data;
-      data = mask = undefined;
-    } else if (typeof mask === 'function') {
-      cb = mask;
-      mask = undefined;
-    }
-
-    if (typeof data === 'number') data = data.toString();
-
-    if (this.readyState !== WebSocket.OPEN) {
-      sendAfterClose(this, data, cb);
-      return;
-    }
-
-    if (mask === undefined) mask = !this._isServer;
-    this._sender.ping(data || EMPTY_BUFFER, mask, cb);
-  }
-
-  /**
-   * Send a pong.
-   *
-   * @param {*} [data] The data to send
-   * @param {Boolean} [mask] Indicates whether or not to mask `data`
-   * @param {Function} [cb] Callback which is executed when the pong is sent
-   * @public
-   */
-  pong(data, mask, cb) {
-    if (this.readyState === WebSocket.CONNECTING) {
-      throw new Error('WebSocket is not open: readyState 0 (CONNECTING)');
-    }
-
-    if (typeof data === 'function') {
-      cb = data;
-      data = mask = undefined;
-    } else if (typeof mask === 'function') {
-      cb = mask;
-      mask = undefined;
-    }
-
-    if (typeof data === 'number') data = data.toString();
-
-    if (this.readyState !== WebSocket.OPEN) {
-      sendAfterClose(this, data, cb);
-      return;
-    }
-
-    if (mask === undefined) mask = !this._isServer;
-    this._sender.pong(data || EMPTY_BUFFER, mask, cb);
-  }
-
-  /**
-   * Resume the socket.
-   *
-   * @public
-   */
-  resume() {
-    if (
-      this.readyState === WebSocket.CONNECTING ||
-      this.readyState === WebSocket.CLOSED
-    ) {
-      return;
-    }
-
-    this._paused = false;
-    if (!this._receiver._writableState.needDrain) this._socket.resume();
-  }
-
-  /**
-   * Send a data message.
-   *
-   * @param {*} data The message to send
-   * @param {Object} [options] Options object
-   * @param {Boolean} [options.binary] Specifies whether `data` is binary or
-   *     text
-   * @param {Boolean} [options.compress] Specifies whether or not to compress
-   *     `data`
-   * @param {Boolean} [options.fin=true] Specifies whether the fragment is the
-   *     last one
-   * @param {Boolean} [options.mask] Specifies whether or not to mask `data`
-   * @param {Function} [cb] Callback which is executed when data is written out
-   * @public
-   */
-  send(data, options, cb) {
-    if (this.readyState === WebSocket.CONNECTING) {
-      throw new Error('WebSocket is not open: readyState 0 (CONNECTING)');
-    }
-
-    if (typeof options === 'function') {
-      cb = options;
-      options = {};
-    }
-
-    if (typeof data === 'number') data = data.toString();
-
-    if (this.readyState !== WebSocket.OPEN) {
-      sendAfterClose(this, data, cb);
-      return;
-    }
-
-    const opts = {
-      binary: typeof data !== 'string',
-      mask: !this._isServer,
-      compress: true,
-      fin: true,
-      ...options
-    };
-
-    if (!this._extensions[PerMessageDeflate.extensionName]) {
-      opts.compress = false;
-    }
-
-    this._sender.send(data || EMPTY_BUFFER, opts, cb);
-  }
-
-  /**
-   * Forcibly close the connection.
-   *
-   * @public
-   */
-  terminate() {
-    if (this.readyState === WebSocket.CLOSED) return;
-    if (this.readyState === WebSocket.CONNECTING) {
-      const msg = 'WebSocket was closed before the connection was established';
-      return abortHandshake(this, this._req, msg);
-    }
-
-    if (this._socket) {
-      this._readyState = WebSocket.CLOSING;
-      this._socket.destroy();
-    }
-  }
-}
-
-/**
- * @constant {Number} CONNECTING
- * @memberof WebSocket
- */
-Object.defineProperty(WebSocket, 'CONNECTING', {
-  enumerable: true,
-  value: readyStates.indexOf('CONNECTING')
-});
-
-/**
- * @constant {Number} CONNECTING
- * @memberof WebSocket.prototype
- */
-Object.defineProperty(WebSocket.prototype, 'CONNECTING', {
-  enumerable: true,
-  value: readyStates.indexOf('CONNECTING')
-});
-
-/**
- * @constant {Number} OPEN
- * @memberof WebSocket
- */
-Object.defineProperty(WebSocket, 'OPEN', {
-  enumerable: true,
-  value: readyStates.indexOf('OPEN')
-});
-
-/**
- * @constant {Number} OPEN
- * @memberof WebSocket.prototype
- */
-Object.defineProperty(WebSocket.prototype, 'OPEN', {
-  enumerable: true,
-  value: readyStates.indexOf('OPEN')
-});
-
-/**
- * @constant {Number} CLOSING
- * @memberof WebSocket
- */
-Object.defineProperty(WebSocket, 'CLOSING', {
-  enumerable: true,
-  value: readyStates.indexOf('CLOSING')
-});
-
-/**
- * @constant {Number} CLOSING
- * @memberof WebSocket.prototype
- */
-Object.defineProperty(WebSocket.prototype, 'CLOSING', {
-  enumerable: true,
-  value: readyStates.indexOf('CLOSING')
-});
-
-/**
- * @constant {Number} CLOSED
- * @memberof WebSocket
- */
-Object.defineProperty(WebSocket, 'CLOSED', {
-  enumerable: true,
-  value: readyStates.indexOf('CLOSED')
-});
-
-/**
- * @constant {Number} CLOSED
- * @memberof WebSocket.prototype
- */
-Object.defineProperty(WebSocket.prototype, 'CLOSED', {
-  enumerable: true,
-  value: readyStates.indexOf('CLOSED')
-});
-
-[
-  'binaryType',
-  'bufferedAmount',
-  'extensions',
-  'isPaused',
-  'protocol',
-  'readyState',
-  'url'
-].forEach((property) => {
-  Object.defineProperty(WebSocket.prototype, property, { enumerable: true });
-});
-
-//
-// Add the `onopen`, `onerror`, `onclose`, and `onmessage` attributes.
-// See https://html.spec.whatwg.org/multipage/comms.html#the-websocket-interface
-//
-['open', 'error', 'close', 'message'].forEach((method) => {
-  Object.defineProperty(WebSocket.prototype, `on${method}`, {
-    enumerable: true,
-    get() {
-      for (const listener of this.listeners(method)) {
-        if (listener[kForOnEventAttribute]) return listener[kListener];
-      }
-
-      return null;
-    },
-    set(handler) {
-      for (const listener of this.listeners(method)) {
-        if (listener[kForOnEventAttribute]) {
-          this.removeListener(method, listener);
-          break;
-        }
-      }
-
-      if (typeof handler !== 'function') return;
-
-      this.addEventListener(method, handler, {
-        [kForOnEventAttribute]: true
-      });
-    }
-  });
-});
-
-WebSocket.prototype.addEventListener = addEventListener;
-WebSocket.prototype.removeEventListener = removeEventListener;
-
-module.exports = WebSocket;
-
-/**
- * Initialize a WebSocket client.
- *
- * @param {WebSocket} websocket The client to initialize
- * @param {(String|URL)} address The URL to which to connect
- * @param {Array} protocols The subprotocols
- * @param {Object} [options] Connection options
- * @param {Boolean} [options.followRedirects=false] Whether or not to follow
- *     redirects
- * @param {Function} [options.generateMask] The function used to generate the
- *     masking key
- * @param {Number} [options.handshakeTimeout] Timeout in milliseconds for the
- *     handshake request
- * @param {Number} [options.maxPayload=104857600] The maximum allowed message
- *     size
- * @param {Number} [options.maxRedirects=10] The maximum number of redirects
- *     allowed
- * @param {String} [options.origin] Value of the `Origin` or
- *     `Sec-WebSocket-Origin` header
- * @param {(Boolean|Object)} [options.perMessageDeflate=true] Enable/disable
- *     permessage-deflate
- * @param {Number} [options.protocolVersion=13] Value of the
- *     `Sec-WebSocket-Version` header
- * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or
- *     not to skip UTF-8 validation for text and close messages
- * @private
- */
-function initAsClient(websocket, address, protocols, options) {
-  const opts = {
-    protocolVersion: protocolVersions[1],
-    maxPayload: 100 * 1024 * 1024,
-    skipUTF8Validation: false,
-    perMessageDeflate: true,
-    followRedirects: false,
-    maxRedirects: 10,
-    ...options,
-    createConnection: undefined,
-    socketPath: undefined,
-    hostname: undefined,
-    protocol: undefined,
-    timeout: undefined,
-    method: 'GET',
-    host: undefined,
-    path: undefined,
-    port: undefined
-  };
-
-  if (!protocolVersions.includes(opts.protocolVersion)) {
-    throw new RangeError(
-      `Unsupported protocol version: ${opts.protocolVersion} ` +
-        `(supported versions: ${protocolVersions.join(', ')})`
-    );
-  }
-
-  let parsedUrl;
-
-  if (address instanceof URL) {
-    parsedUrl = address;
-    websocket._url = address.href;
-  } else {
-    try {
-      parsedUrl = new URL(address);
-    } catch (e) {
-      throw new SyntaxError(`Invalid URL: ${address}`);
-    }
-
-    websocket._url = address;
-  }
-
-  const isSecure = parsedUrl.protocol === 'wss:';
-  const isIpcUrl = parsedUrl.protocol === 'ws+unix:';
-  let invalidUrlMessage;
-
-  if (parsedUrl.protocol !== 'ws:' && !isSecure && !isIpcUrl) {
-    invalidUrlMessage =
-      'The URL\'s protocol must be one of "ws:", "wss:", or "ws+unix:"';
-  } else if (isIpcUrl && !parsedUrl.pathname) {
-    invalidUrlMessage = "The URL's pathname is empty";
-  } else if (parsedUrl.hash) {
-    invalidUrlMessage = 'The URL contains a fragment identifier';
-  }
-
-  if (invalidUrlMessage) {
-    const err = new SyntaxError(invalidUrlMessage);
-
-    if (websocket._redirects === 0) {
-      throw err;
-    } else {
-      emitErrorAndClose(websocket, err);
-      return;
-    }
-  }
-
-  const defaultPort = isSecure ? 443 : 80;
-  const key = randomBytes(16).toString('base64');
-  const request = isSecure ? https.request : http.request;
-  const protocolSet = new Set();
-  let perMessageDeflate;
-
-  opts.createConnection = isSecure ? tlsConnect : netConnect;
-  opts.defaultPort = opts.defaultPort || defaultPort;
-  opts.port = parsedUrl.port || defaultPort;
-  opts.host = parsedUrl.hostname.startsWith('[')
-    ? parsedUrl.hostname.slice(1, -1)
-    : parsedUrl.hostname;
-  opts.headers = {
-    ...opts.headers,
-    'Sec-WebSocket-Version': opts.protocolVersion,
-    'Sec-WebSocket-Key': key,
-    Connection: 'Upgrade',
-    Upgrade: 'websocket'
-  };
-  opts.path = parsedUrl.pathname + parsedUrl.search;
-  opts.timeout = opts.handshakeTimeout;
-
-  if (opts.perMessageDeflate) {
-    perMessageDeflate = new PerMessageDeflate(
-      opts.perMessageDeflate !== true ? opts.perMessageDeflate : {},
-      false,
-      opts.maxPayload
-    );
-    opts.headers['Sec-WebSocket-Extensions'] = format({
-      [PerMessageDeflate.extensionName]: perMessageDeflate.offer()
-    });
-  }
-  if (protocols.length) {
-    for (const protocol of protocols) {
-      if (
-        typeof protocol !== 'string' ||
-        !subprotocolRegex.test(protocol) ||
-        protocolSet.has(protocol)
-      ) {
-        throw new SyntaxError(
-          'An invalid or duplicated subprotocol was specified'
-        );
-      }
-
-      protocolSet.add(protocol);
-    }
-
-    opts.headers['Sec-WebSocket-Protocol'] = protocols.join(',');
-  }
-  if (opts.origin) {
-    if (opts.protocolVersion < 13) {
-      opts.headers['Sec-WebSocket-Origin'] = opts.origin;
-    } else {
-      opts.headers.Origin = opts.origin;
-    }
-  }
-  if (parsedUrl.username || parsedUrl.password) {
-    opts.auth = `${parsedUrl.username}:${parsedUrl.password}`;
-  }
-
-  if (isIpcUrl) {
-    const parts = opts.path.split(':');
-
-    opts.socketPath = parts[0];
-    opts.path = parts[1];
-  }
-
-  let req;
-
-  if (opts.followRedirects) {
-    if (websocket._redirects === 0) {
-      websocket._originalIpc = isIpcUrl;
-      websocket._originalSecure = isSecure;
-      websocket._originalHostOrSocketPath = isIpcUrl
-        ? opts.socketPath
-        : parsedUrl.host;
-
-      const headers = options && options.headers;
-
-      //
-      // Shallow copy the user provided options so that headers can be changed
-      // without mutating the original object.
-      //
-      options = { ...options, headers: {} };
-
-      if (headers) {
-        for (const [key, value] of Object.entries(headers)) {
-          options.headers[key.toLowerCase()] = value;
-        }
-      }
-    } else if (websocket.listenerCount('redirect') === 0) {
-      const isSameHost = isIpcUrl
-        ? websocket._originalIpc
-          ? opts.socketPath === websocket._originalHostOrSocketPath
-          : false
-        : websocket._originalIpc
-        ? false
-        : parsedUrl.host === websocket._originalHostOrSocketPath;
-
-      if (!isSameHost || (websocket._originalSecure && !isSecure)) {
-        //
-        // Match curl 7.77.0 behavior and drop the following headers. These
-        // headers are also dropped when following a redirect to a subdomain.
-        //
-        delete opts.headers.authorization;
-        delete opts.headers.cookie;
-
-        if (!isSameHost) delete opts.headers.host;
-
-        opts.auth = undefined;
-      }
-    }
-
-    //
-    // Match curl 7.77.0 behavior and make the first `Authorization` header win.
-    // If the `Authorization` header is set, then there is nothing to do as it
-    // will take precedence.
-    //
-    if (opts.auth && !options.headers.authorization) {
-      options.headers.authorization =
-        'Basic ' + Buffer.from(opts.auth).toString('base64');
-    }
-
-    req = websocket._req = request(opts);
-
-    if (websocket._redirects) {
-      //
-      // Unlike what is done for the `'upgrade'` event, no early exit is
-      // triggered here if the user calls `websocket.close()` or
-      // `websocket.terminate()` from a listener of the `'redirect'` event. This
-      // is because the user can also call `request.destroy()` with an error
-      // before calling `websocket.close()` or `websocket.terminate()` and this
-      // would result in an error being emitted on the `request` object with no
-      // `'error'` event listeners attached.
-      //
-      websocket.emit('redirect', websocket.url, req);
-    }
-  } else {
-    req = websocket._req = request(opts);
-  }
-
-  if (opts.timeout) {
-    req.on('timeout', () => {
-      abortHandshake(websocket, req, 'Opening handshake has timed out');
-    });
-  }
-
-  req.on('error', (err) => {
-    if (req === null || req[kAborted]) return;
-
-    req = websocket._req = null;
-    emitErrorAndClose(websocket, err);
-  });
-
-  req.on('response', (res) => {
-    const location = res.headers.location;
-    const statusCode = res.statusCode;
-
-    if (
-      location &&
-      opts.followRedirects &&
-      statusCode >= 300 &&
-      statusCode < 400
-    ) {
-      if (++websocket._redirects > opts.maxRedirects) {
-        abortHandshake(websocket, req, 'Maximum redirects exceeded');
-        return;
-      }
-
-      req.abort();
-
-      let addr;
-
-      try {
-        addr = new URL(location, address);
-      } catch (e) {
-        const err = new SyntaxError(`Invalid URL: ${location}`);
-        emitErrorAndClose(websocket, err);
-        return;
-      }
-
-      initAsClient(websocket, addr, protocols, options);
-    } else if (!websocket.emit('unexpected-response', req, res)) {
-      abortHandshake(
-        websocket,
-        req,
-        `Unexpected server response: ${res.statusCode}`
-      );
-    }
-  });
-
-  req.on('upgrade', (res, socket, head) => {
-    websocket.emit('upgrade', res);
-
-    //
-    // The user may have closed the connection from a listener of the
-    // `'upgrade'` event.
-    //
-    if (websocket.readyState !== WebSocket.CONNECTING) return;
-
-    req = websocket._req = null;
-
-    if (res.headers.upgrade.toLowerCase() !== 'websocket') {
-      abortHandshake(websocket, socket, 'Invalid Upgrade header');
-      return;
-    }
-
-    const digest = createHash('sha1')
-      .update(key + GUID)
-      .digest('base64');
-
-    if (res.headers['sec-websocket-accept'] !== digest) {
-      abortHandshake(websocket, socket, 'Invalid Sec-WebSocket-Accept header');
-      return;
-    }
-
-    const serverProt = res.headers['sec-websocket-protocol'];
-    let protError;
-
-    if (serverProt !== undefined) {
-      if (!protocolSet.size) {
-        protError = 'Server sent a subprotocol but none was requested';
-      } else if (!protocolSet.has(serverProt)) {
-        protError = 'Server sent an invalid subprotocol';
-      }
-    } else if (protocolSet.size) {
-      protError = 'Server sent no subprotocol';
-    }
-
-    if (protError) {
-      abortHandshake(websocket, socket, protError);
-      return;
-    }
-
-    if (serverProt) websocket._protocol = serverProt;
-
-    const secWebSocketExtensions = res.headers['sec-websocket-extensions'];
-
-    if (secWebSocketExtensions !== undefined) {
-      if (!perMessageDeflate) {
-        const message =
-          'Server sent a Sec-WebSocket-Extensions header but no extension ' +
-          'was requested';
-        abortHandshake(websocket, socket, message);
-        return;
-      }
-
-      let extensions;
-
-      try {
-        extensions = parse(secWebSocketExtensions);
-      } catch (err) {
-        const message = 'Invalid Sec-WebSocket-Extensions header';
-        abortHandshake(websocket, socket, message);
-        return;
-      }
-
-      const extensionNames = Object.keys(extensions);
-
-      if (
-        extensionNames.length !== 1 ||
-        extensionNames[0] !== PerMessageDeflate.extensionName
-      ) {
-        const message = 'Server indicated an extension that was not requested';
-        abortHandshake(websocket, socket, message);
-        return;
-      }
-
-      try {
-        perMessageDeflate.accept(extensions[PerMessageDeflate.extensionName]);
-      } catch (err) {
-        const message = 'Invalid Sec-WebSocket-Extensions header';
-        abortHandshake(websocket, socket, message);
-        return;
-      }
-
-      websocket._extensions[PerMessageDeflate.extensionName] =
-        perMessageDeflate;
-    }
-
-    websocket.setSocket(socket, head, {
-      generateMask: opts.generateMask,
-      maxPayload: opts.maxPayload,
-      skipUTF8Validation: opts.skipUTF8Validation
-    });
-  });
-
-  req.end();
-}
-
-/**
- * Emit the `'error'` and `'close'` events.
- *
- * @param {WebSocket} websocket The WebSocket instance
- * @param {Error} The error to emit
- * @private
- */
-function emitErrorAndClose(websocket, err) {
-  websocket._readyState = WebSocket.CLOSING;
-  websocket.emit('error', err);
-  websocket.emitClose();
-}
-
-/**
- * Create a `net.Socket` and initiate a connection.
- *
- * @param {Object} options Connection options
- * @return {net.Socket} The newly created socket used to start the connection
- * @private
- */
-function netConnect(options) {
-  options.path = options.socketPath;
-  return net.connect(options);
-}
-
-/**
- * Create a `tls.TLSSocket` and initiate a connection.
- *
- * @param {Object} options Connection options
- * @return {tls.TLSSocket} The newly created socket used to start the connection
- * @private
- */
-function tlsConnect(options) {
-  options.path = undefined;
-
-  if (!options.servername && options.servername !== '') {
-    options.servername = net.isIP(options.host) ? '' : options.host;
-  }
-
-  return tls.connect(options);
-}
-
-/**
- * Abort the handshake and emit an error.
- *
- * @param {WebSocket} websocket The WebSocket instance
- * @param {(http.ClientRequest|net.Socket|tls.Socket)} stream The request to
- *     abort or the socket to destroy
- * @param {String} message The error message
- * @private
- */
-function abortHandshake(websocket, stream, message) {
-  websocket._readyState = WebSocket.CLOSING;
-
-  const err = new Error(message);
-  Error.captureStackTrace(err, abortHandshake);
-
-  if (stream.setHeader) {
-    stream[kAborted] = true;
-    stream.abort();
-
-    if (stream.socket && !stream.socket.destroyed) {
-      //
-      // On Node.js >= 14.3.0 `request.abort()` does not destroy the socket if
-      // called after the request completed. See
-      // https://github.com/websockets/ws/issues/1869.
-      //
-      stream.socket.destroy();
-    }
-
-    process.nextTick(emitErrorAndClose, websocket, err);
-  } else {
-    stream.destroy(err);
-    stream.once('error', websocket.emit.bind(websocket, 'error'));
-    stream.once('close', websocket.emitClose.bind(websocket));
-  }
-}
-
-/**
- * Handle cases where the `ping()`, `pong()`, or `send()` methods are called
- * when the `readyState` attribute is `CLOSING` or `CLOSED`.
- *
- * @param {WebSocket} websocket The WebSocket instance
- * @param {*} [data] The data to send
- * @param {Function} [cb] Callback
- * @private
- */
-function sendAfterClose(websocket, data, cb) {
-  if (data) {
-    const length = toBuffer(data).length;
-
-    //
-    // The `_bufferedAmount` property is used only when the peer is a client and
-    // the opening handshake fails. Under these circumstances, in fact, the
-    // `setSocket()` method is not called, so the `_socket` and `_sender`
-    // properties are set to `null`.
-    //
-    if (websocket._socket) websocket._sender._bufferedBytes += length;
-    else websocket._bufferedAmount += length;
-  }
-
-  if (cb) {
-    const err = new Error(
-      `WebSocket is not open: readyState ${websocket.readyState} ` +
-        `(${readyStates[websocket.readyState]})`
-    );
-    cb(err);
-  }
-}
-
-/**
- * The listener of the `Receiver` `'conclude'` event.
- *
- * @param {Number} code The status code
- * @param {Buffer} reason The reason for closing
- * @private
- */
-function receiverOnConclude(code, reason) {
-  const websocket = this[kWebSocket];
-
-  websocket._closeFrameReceived = true;
-  websocket._closeMessage = reason;
-  websocket._closeCode = code;
-
-  if (websocket._socket[kWebSocket] === undefined) return;
-
-  websocket._socket.removeListener('data', socketOnData);
-  process.nextTick(resume, websocket._socket);
-
-  if (code === 1005) websocket.close();
-  else websocket.close(code, reason);
-}
-
-/**
- * The listener of the `Receiver` `'drain'` event.
- *
- * @private
- */
-function receiverOnDrain() {
-  const websocket = this[kWebSocket];
-
-  if (!websocket.isPaused) websocket._socket.resume();
-}
-
-/**
- * The listener of the `Receiver` `'error'` event.
- *
- * @param {(RangeError|Error)} err The emitted error
- * @private
- */
-function receiverOnError(err) {
-  const websocket = this[kWebSocket];
-
-  if (websocket._socket[kWebSocket] !== undefined) {
-    websocket._socket.removeListener('data', socketOnData);
-
-    //
-    // On Node.js < 14.0.0 the `'error'` event is emitted synchronously. See
-    // https://github.com/websockets/ws/issues/1940.
-    //
-    process.nextTick(resume, websocket._socket);
-
-    websocket.close(err[kStatusCode]);
-  }
-
-  websocket.emit('error', err);
-}
-
-/**
- * The listener of the `Receiver` `'finish'` event.
- *
- * @private
- */
-function receiverOnFinish() {
-  this[kWebSocket].emitClose();
-}
-
-/**
- * The listener of the `Receiver` `'message'` event.
- *
- * @param {Buffer|ArrayBuffer|Buffer[])} data The message
- * @param {Boolean} isBinary Specifies whether the message is binary or not
- * @private
- */
-function receiverOnMessage(data, isBinary) {
-  this[kWebSocket].emit('message', data, isBinary);
-}
-
-/**
- * The listener of the `Receiver` `'ping'` event.
- *
- * @param {Buffer} data The data included in the ping frame
- * @private
- */
-function receiverOnPing(data) {
-  const websocket = this[kWebSocket];
-
-  websocket.pong(data, !websocket._isServer, NOOP);
-  websocket.emit('ping', data);
-}
-
-/**
- * The listener of the `Receiver` `'pong'` event.
- *
- * @param {Buffer} data The data included in the pong frame
- * @private
- */
-function receiverOnPong(data) {
-  this[kWebSocket].emit('pong', data);
-}
-
-/**
- * Resume a readable stream
- *
- * @param {Readable} stream The readable stream
- * @private
- */
-function resume(stream) {
-  stream.resume();
-}
-
-/**
- * The listener of the `net.Socket` `'close'` event.
- *
- * @private
- */
-function socketOnClose() {
-  const websocket = this[kWebSocket];
-
-  this.removeListener('close', socketOnClose);
-  this.removeListener('data', socketOnData);
-  this.removeListener('end', socketOnEnd);
-
-  websocket._readyState = WebSocket.CLOSING;
-
-  let chunk;
-
-  //
-  // The close frame might not have been received or the `'end'` event emitted,
-  // for example, if the socket was destroyed due to an error. Ensure that the
-  // `receiver` stream is closed after writing any remaining buffered data to
-  // it. If the readable side of the socket is in flowing mode then there is no
-  // buffered data as everything has been already written and `readable.read()`
-  // will return `null`. If instead, the socket is paused, any possible buffered
-  // data will be read as a single chunk.
-  //
-  if (
-    !this._readableState.endEmitted &&
-    !websocket._closeFrameReceived &&
-    !websocket._receiver._writableState.errorEmitted &&
-    (chunk = websocket._socket.read()) !== null
-  ) {
-    websocket._receiver.write(chunk);
-  }
-
-  websocket._receiver.end();
-
-  this[kWebSocket] = undefined;
-
-  clearTimeout(websocket._closeTimer);
-
-  if (
-    websocket._receiver._writableState.finished ||
-    websocket._receiver._writableState.errorEmitted
-  ) {
-    websocket.emitClose();
-  } else {
-    websocket._receiver.on('error', receiverOnFinish);
-    websocket._receiver.on('finish', receiverOnFinish);
-  }
-}
-
-/**
- * The listener of the `net.Socket` `'data'` event.
- *
- * @param {Buffer} chunk A chunk of data
- * @private
- */
-function socketOnData(chunk) {
-  if (!this[kWebSocket]._receiver.write(chunk)) {
-    this.pause();
-  }
-}
-
-/**
- * The listener of the `net.Socket` `'end'` event.
- *
- * @private
- */
-function socketOnEnd() {
-  const websocket = this[kWebSocket];
-
-  websocket._readyState = WebSocket.CLOSING;
-  websocket._receiver.end();
-  this.end();
-}
-
-/**
- * The listener of the `net.Socket` `'error'` event.
- *
- * @private
- */
-function socketOnError() {
-  const websocket = this[kWebSocket];
-
-  this.removeListener('error', socketOnError);
-  this.on('error', NOOP);
-
-  if (websocket) {
-    websocket._readyState = WebSocket.CLOSING;
-    this.destroy();
-  }
-}