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Diffstat (limited to 'comproxy/node_modules/ws')
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diff --git a/comproxy/node_modules/ws/LICENSE b/comproxy/node_modules/ws/LICENSE deleted file mode 100644 index 65ff176..0000000 --- a/comproxy/node_modules/ws/LICENSE +++ /dev/null @@ -1,19 +0,0 @@ -Copyright (c) 2011 Einar Otto Stangvik <einaros@gmail.com> - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/comproxy/node_modules/ws/README.md b/comproxy/node_modules/ws/README.md deleted file mode 100644 index 4ae71f6..0000000 --- a/comproxy/node_modules/ws/README.md +++ /dev/null @@ -1,495 +0,0 @@ -# ws: a Node.js WebSocket library - -[](https://www.npmjs.com/package/ws) -[](https://github.com/websockets/ws/actions?query=workflow%3ACI+branch%3Amaster) -[](https://coveralls.io/github/websockets/ws) - -ws is a simple to use, blazing fast, and thoroughly tested WebSocket client and -server implementation. - -Passes the quite extensive Autobahn test suite: [server][server-report], -[client][client-report]. - -**Note**: This module does not work in the browser. The client in the docs is a -reference to a back end with the role of a client in the WebSocket -communication. Browser clients must use the native -[`WebSocket`](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) -object. To make the same code work seamlessly on Node.js and the browser, you -can use one of the many wrappers available on npm, like -[isomorphic-ws](https://github.com/heineiuo/isomorphic-ws). - -## Table of Contents - -- [Protocol support](#protocol-support) -- [Installing](#installing) - - [Opt-in for performance](#opt-in-for-performance) -- [API docs](#api-docs) -- [WebSocket compression](#websocket-compression) -- [Usage examples](#usage-examples) - - [Sending and receiving text data](#sending-and-receiving-text-data) - - [Sending binary data](#sending-binary-data) - - [Simple server](#simple-server) - - [External HTTP/S server](#external-https-server) - - [Multiple servers sharing a single HTTP/S server](#multiple-servers-sharing-a-single-https-server) - - [Client authentication](#client-authentication) - - [Server broadcast](#server-broadcast) - - [Round-trip time](#round-trip-time) - - [Use the Node.js streams API](#use-the-nodejs-streams-api) - - [Other examples](#other-examples) -- [FAQ](#faq) - - [How to get the IP address of the client?](#how-to-get-the-ip-address-of-the-client) - - [How to detect and close broken connections?](#how-to-detect-and-close-broken-connections) - - [How to connect via a proxy?](#how-to-connect-via-a-proxy) -- [Changelog](#changelog) -- [License](#license) - -## Protocol support - -- **HyBi drafts 07-12** (Use the option `protocolVersion: 8`) -- **HyBi drafts 13-17** (Current default, alternatively option - `protocolVersion: 13`) - -## Installing - -``` -npm install ws -``` - -### Opt-in for performance - -There are 2 optional modules that can be installed along side with the ws -module. These modules are binary addons which improve certain operations. -Prebuilt binaries are available for the most popular platforms so you don't -necessarily need to have a C++ compiler installed on your machine. - -- `npm install --save-optional bufferutil`: Allows to efficiently perform - operations such as masking and unmasking the data payload of the WebSocket - frames. -- `npm install --save-optional utf-8-validate`: Allows to efficiently check if a - message contains valid UTF-8. - -To not even try to require and use these modules, use the -[`WS_NO_BUFFER_UTIL`](./doc/ws.md#ws_no_buffer_util) and -[`WS_NO_UTF_8_VALIDATE`](./doc/ws.md#ws_no_utf_8_validate) environment -variables. These might be useful to enhance security in systems where a user can -put a package in the package search path of an application of another user, due -to how the Node.js resolver algorithm works. - -## API docs - -See [`/doc/ws.md`](./doc/ws.md) for Node.js-like documentation of ws classes and -utility functions. - -## WebSocket compression - -ws supports the [permessage-deflate extension][permessage-deflate] which enables -the client and server to negotiate a compression algorithm and its parameters, -and then selectively apply it to the data payloads of each WebSocket message. - -The extension is disabled by default on the server and enabled by default on the -client. It adds a significant overhead in terms of performance and memory -consumption so we suggest to enable it only if it is really needed. - -Note that Node.js has a variety of issues with high-performance compression, -where increased concurrency, especially on Linux, can lead to [catastrophic -memory fragmentation][node-zlib-bug] and slow performance. If you intend to use -permessage-deflate in production, it is worthwhile to set up a test -representative of your workload and ensure Node.js/zlib will handle it with -acceptable performance and memory usage. - -Tuning of permessage-deflate can be done via the options defined below. You can -also use `zlibDeflateOptions` and `zlibInflateOptions`, which is passed directly -into the creation of [raw deflate/inflate streams][node-zlib-deflaterawdocs]. - -See [the docs][ws-server-options] for more options. - -```js -import WebSocket, { WebSocketServer } from 'ws'; - -const wss = new WebSocketServer({ - port: 8080, - perMessageDeflate: { - zlibDeflateOptions: { - // See zlib defaults. - chunkSize: 1024, - memLevel: 7, - level: 3 - }, - zlibInflateOptions: { - chunkSize: 10 * 1024 - }, - // Other options settable: - clientNoContextTakeover: true, // Defaults to negotiated value. - serverNoContextTakeover: true, // Defaults to negotiated value. - serverMaxWindowBits: 10, // Defaults to negotiated value. - // Below options specified as default values. - concurrencyLimit: 10, // Limits zlib concurrency for perf. - threshold: 1024 // Size (in bytes) below which messages - // should not be compressed if context takeover is disabled. - } -}); -``` - -The client will only use the extension if it is supported and enabled on the -server. To always disable the extension on the client set the -`perMessageDeflate` option to `false`. - -```js -import WebSocket from 'ws'; - -const ws = new WebSocket('ws://www.host.com/path', { - perMessageDeflate: false -}); -``` - -## Usage examples - -### Sending and receiving text data - -```js -import WebSocket from 'ws'; - -const ws = new WebSocket('ws://www.host.com/path'); - -ws.on('open', function open() { - ws.send('something'); -}); - -ws.on('message', function message(data) { - console.log('received: %s', data); -}); -``` - -### Sending binary data - -```js -import WebSocket from 'ws'; - -const ws = new WebSocket('ws://www.host.com/path'); - -ws.on('open', function open() { - const array = new Float32Array(5); - - for (var i = 0; i < array.length; ++i) { - array[i] = i / 2; - } - - ws.send(array); -}); -``` - -### Simple server - -```js -import { WebSocketServer } from 'ws'; - -const wss = new WebSocketServer({ port: 8080 }); - -wss.on('connection', function connection(ws) { - ws.on('message', function message(data) { - console.log('received: %s', data); - }); - - ws.send('something'); -}); -``` - -### External HTTP/S server - -```js -import { createServer } from 'https'; -import { readFileSync } from 'fs'; -import { WebSocketServer } from 'ws'; - -const server = createServer({ - cert: readFileSync('/path/to/cert.pem'), - key: readFileSync('/path/to/key.pem') -}); -const wss = new WebSocketServer({ server }); - -wss.on('connection', function connection(ws) { - ws.on('message', function message(data) { - console.log('received: %s', data); - }); - - ws.send('something'); -}); - -server.listen(8080); -``` - -### Multiple servers sharing a single HTTP/S server - -```js -import { createServer } from 'http'; -import { parse } from 'url'; -import { WebSocketServer } from 'ws'; - -const server = createServer(); -const wss1 = new WebSocketServer({ noServer: true }); -const wss2 = new WebSocketServer({ noServer: true }); - -wss1.on('connection', function connection(ws) { - // ... -}); - -wss2.on('connection', function connection(ws) { - // ... -}); - -server.on('upgrade', function upgrade(request, socket, head) { - const { pathname } = parse(request.url); - - if (pathname === '/foo') { - wss1.handleUpgrade(request, socket, head, function done(ws) { - wss1.emit('connection', ws, request); - }); - } else if (pathname === '/bar') { - wss2.handleUpgrade(request, socket, head, function done(ws) { - wss2.emit('connection', ws, request); - }); - } else { - socket.destroy(); - } -}); - -server.listen(8080); -``` - -### Client authentication - -```js -import { createServer } from 'http'; -import { WebSocketServer } from 'ws'; - -const server = createServer(); -const wss = new WebSocketServer({ noServer: true }); - -wss.on('connection', function connection(ws, request, client) { - ws.on('message', function message(data) { - console.log(`Received message ${data} from user ${client}`); - }); -}); - -server.on('upgrade', function upgrade(request, socket, head) { - // This function is not defined on purpose. Implement it with your own logic. - authenticate(request, function next(err, client) { - if (err || !client) { - socket.write('HTTP/1.1 401 Unauthorized\r\n\r\n'); - socket.destroy(); - return; - } - - wss.handleUpgrade(request, socket, head, function done(ws) { - wss.emit('connection', ws, request, client); - }); - }); -}); - -server.listen(8080); -``` - -Also see the provided [example][session-parse-example] using `express-session`. - -### Server broadcast - -A client WebSocket broadcasting to all connected WebSocket clients, including -itself. - -```js -import WebSocket, { WebSocketServer } from 'ws'; - -const wss = new WebSocketServer({ port: 8080 }); - -wss.on('connection', function connection(ws) { - ws.on('message', function message(data, isBinary) { - wss.clients.forEach(function each(client) { - if (client.readyState === WebSocket.OPEN) { - client.send(data, { binary: isBinary }); - } - }); - }); -}); -``` - -A client WebSocket broadcasting to every other connected WebSocket clients, -excluding itself. - -```js -import WebSocket, { WebSocketServer } from 'ws'; - -const wss = new WebSocketServer({ port: 8080 }); - -wss.on('connection', function connection(ws) { - ws.on('message', function message(data, isBinary) { - wss.clients.forEach(function each(client) { - if (client !== ws && client.readyState === WebSocket.OPEN) { - client.send(data, { binary: isBinary }); - } - }); - }); -}); -``` - -### Round-trip time - -```js -import WebSocket from 'ws'; - -const ws = new WebSocket('wss://websocket-echo.com/'); - -ws.on('open', function open() { - console.log('connected'); - ws.send(Date.now()); -}); - -ws.on('close', function close() { - console.log('disconnected'); -}); - -ws.on('message', function message(data) { - console.log(`Round-trip time: ${Date.now() - data} ms`); - - setTimeout(function timeout() { - ws.send(Date.now()); - }, 500); -}); -``` - -### Use the Node.js streams API - -```js -import WebSocket, { createWebSocketStream } from 'ws'; - -const ws = new WebSocket('wss://websocket-echo.com/'); - -const duplex = createWebSocketStream(ws, { encoding: 'utf8' }); - -duplex.pipe(process.stdout); -process.stdin.pipe(duplex); -``` - -### Other examples - -For a full example with a browser client communicating with a ws server, see the -examples folder. - -Otherwise, see the test cases. - -## FAQ - -### How to get the IP address of the client? - -The remote IP address can be obtained from the raw socket. - -```js -import { WebSocketServer } from 'ws'; - -const wss = new WebSocketServer({ port: 8080 }); - -wss.on('connection', function connection(ws, req) { - const ip = req.socket.remoteAddress; -}); -``` - -When the server runs behind a proxy like NGINX, the de-facto standard is to use -the `X-Forwarded-For` header. - -```js -wss.on('connection', function connection(ws, req) { - const ip = req.headers['x-forwarded-for'].split(',')[0].trim(); -}); -``` - -### How to detect and close broken connections? - -Sometimes the link between the server and the client can be interrupted in a way -that keeps both the server and the client unaware of the broken state of the -connection (e.g. when pulling the cord). - -In these cases ping messages can be used as a means to verify that the remote -endpoint is still responsive. - -```js -import { WebSocketServer } from 'ws'; - -function heartbeat() { - this.isAlive = true; -} - -const wss = new WebSocketServer({ port: 8080 }); - -wss.on('connection', function connection(ws) { - ws.isAlive = true; - ws.on('pong', heartbeat); -}); - -const interval = setInterval(function ping() { - wss.clients.forEach(function each(ws) { - if (ws.isAlive === false) return ws.terminate(); - - ws.isAlive = false; - ws.ping(); - }); -}, 30000); - -wss.on('close', function close() { - clearInterval(interval); -}); -``` - -Pong messages are automatically sent in response to ping messages as required by -the spec. - -Just like the server example above your clients might as well lose connection -without knowing it. You might want to add a ping listener on your clients to -prevent that. A simple implementation would be: - -```js -import WebSocket from 'ws'; - -function heartbeat() { - clearTimeout(this.pingTimeout); - - // Use `WebSocket#terminate()`, which immediately destroys the connection, - // instead of `WebSocket#close()`, which waits for the close timer. - // Delay should be equal to the interval at which your server - // sends out pings plus a conservative assumption of the latency. - this.pingTimeout = setTimeout(() => { - this.terminate(); - }, 30000 + 1000); -} - -const client = new WebSocket('wss://websocket-echo.com/'); - -client.on('open', heartbeat); -client.on('ping', heartbeat); -client.on('close', function clear() { - clearTimeout(this.pingTimeout); -}); -``` - -### How to connect via a proxy? - -Use a custom `http.Agent` implementation like [https-proxy-agent][] or -[socks-proxy-agent][]. - -## Changelog - -We're using the GitHub [releases][changelog] for changelog entries. - -## License - -[MIT](LICENSE) - -[changelog]: https://github.com/websockets/ws/releases -[client-report]: http://websockets.github.io/ws/autobahn/clients/ -[https-proxy-agent]: https://github.com/TooTallNate/node-https-proxy-agent -[node-zlib-bug]: https://github.com/nodejs/node/issues/8871 -[node-zlib-deflaterawdocs]: - https://nodejs.org/api/zlib.html#zlib_zlib_createdeflateraw_options -[permessage-deflate]: https://tools.ietf.org/html/rfc7692 -[server-report]: http://websockets.github.io/ws/autobahn/servers/ -[session-parse-example]: ./examples/express-session-parse -[socks-proxy-agent]: https://github.com/TooTallNate/node-socks-proxy-agent -[ws-server-options]: ./doc/ws.md#new-websocketserveroptions-callback diff --git a/comproxy/node_modules/ws/browser.js b/comproxy/node_modules/ws/browser.js deleted file mode 100644 index ca4f628..0000000 --- a/comproxy/node_modules/ws/browser.js +++ /dev/null @@ -1,8 +0,0 @@ -'use strict'; - -module.exports = function () { - throw new Error( - 'ws does not work in the browser. Browser clients must use the native ' + - 'WebSocket object' - ); -}; diff --git a/comproxy/node_modules/ws/index.js b/comproxy/node_modules/ws/index.js deleted file mode 100644 index 41edb3b..0000000 --- a/comproxy/node_modules/ws/index.js +++ /dev/null @@ -1,13 +0,0 @@ -'use strict'; - -const WebSocket = require('./lib/websocket'); - -WebSocket.createWebSocketStream = require('./lib/stream'); -WebSocket.Server = require('./lib/websocket-server'); -WebSocket.Receiver = require('./lib/receiver'); -WebSocket.Sender = require('./lib/sender'); - -WebSocket.WebSocket = WebSocket; -WebSocket.WebSocketServer = WebSocket.Server; - -module.exports = WebSocket; diff --git a/comproxy/node_modules/ws/lib/buffer-util.js b/comproxy/node_modules/ws/lib/buffer-util.js deleted file mode 100644 index df75955..0000000 --- a/comproxy/node_modules/ws/lib/buffer-util.js +++ /dev/null @@ -1,127 +0,0 @@ -'use strict'; - -const { EMPTY_BUFFER } = require('./constants'); - -/** - * Merges an array of buffers into a new buffer. - * - * @param {Buffer[]} list The array of buffers to concat - * @param {Number} totalLength The total length of buffers in the list - * @return {Buffer} The resulting buffer - * @public - */ -function concat(list, totalLength) { - if (list.length === 0) return EMPTY_BUFFER; - if (list.length === 1) return list[0]; - - const target = Buffer.allocUnsafe(totalLength); - let offset = 0; - - for (let i = 0; i < list.length; i++) { - const buf = list[i]; - target.set(buf, offset); - offset += buf.length; - } - - if (offset < totalLength) return target.slice(0, offset); - - return target; -} - -/** - * Masks a buffer using the given mask. - * - * @param {Buffer} source The buffer to mask - * @param {Buffer} mask The mask to use - * @param {Buffer} output The buffer where to store the result - * @param {Number} offset The offset at which to start writing - * @param {Number} length The number of bytes to mask. - * @public - */ -function _mask(source, mask, output, offset, length) { - for (let i = 0; i < length; i++) { - output[offset + i] = source[i] ^ mask[i & 3]; - } -} - -/** - * Unmasks a buffer using the given mask. - * - * @param {Buffer} buffer The buffer to unmask - * @param {Buffer} mask The mask to use - * @public - */ -function _unmask(buffer, mask) { - for (let i = 0; i < buffer.length; i++) { - buffer[i] ^= mask[i & 3]; - } -} - -/** - * Converts a buffer to an `ArrayBuffer`. - * - * @param {Buffer} buf The buffer to convert - * @return {ArrayBuffer} Converted buffer - * @public - */ -function toArrayBuffer(buf) { - if (buf.byteLength === buf.buffer.byteLength) { - return buf.buffer; - } - - return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength); -} - -/** - * Converts `data` to a `Buffer`. - * - * @param {*} data The data to convert - * @return {Buffer} The buffer - * @throws {TypeError} - * @public - */ -function toBuffer(data) { - toBuffer.readOnly = true; - - if (Buffer.isBuffer(data)) return data; - - let buf; - - if (data instanceof ArrayBuffer) { - buf = Buffer.from(data); - } else if (ArrayBuffer.isView(data)) { - buf = Buffer.from(data.buffer, data.byteOffset, data.byteLength); - } else { - buf = Buffer.from(data); - toBuffer.readOnly = false; - } - - return buf; -} - -module.exports = { - concat, - mask: _mask, - toArrayBuffer, - toBuffer, - unmask: _unmask -}; - -/* istanbul ignore else */ -if (!process.env.WS_NO_BUFFER_UTIL) { - try { - const bufferUtil = require('bufferutil'); - - module.exports.mask = function (source, mask, output, offset, length) { - if (length < 48) _mask(source, mask, output, offset, length); - else bufferUtil.mask(source, mask, output, offset, length); - }; - - module.exports.unmask = function (buffer, mask) { - if (buffer.length < 32) _unmask(buffer, mask); - else bufferUtil.unmask(buffer, mask); - }; - } catch (e) { - // Continue regardless of the error. - } -} diff --git a/comproxy/node_modules/ws/lib/constants.js b/comproxy/node_modules/ws/lib/constants.js deleted file mode 100644 index d691b30..0000000 --- a/comproxy/node_modules/ws/lib/constants.js +++ /dev/null @@ -1,12 +0,0 @@ -'use strict'; - -module.exports = { - BINARY_TYPES: ['nodebuffer', 'arraybuffer', 'fragments'], - EMPTY_BUFFER: Buffer.alloc(0), - GUID: '258EAFA5-E914-47DA-95CA-C5AB0DC85B11', - kForOnEventAttribute: Symbol('kIsForOnEventAttribute'), - kListener: Symbol('kListener'), - kStatusCode: Symbol('status-code'), - kWebSocket: Symbol('websocket'), - NOOP: () => {} -}; diff --git a/comproxy/node_modules/ws/lib/event-target.js b/comproxy/node_modules/ws/lib/event-target.js deleted file mode 100644 index fea4cbc..0000000 --- a/comproxy/node_modules/ws/lib/event-target.js +++ /dev/null @@ -1,292 +0,0 @@ -'use strict'; - -const { kForOnEventAttribute, kListener } = require('./constants'); - -const kCode = Symbol('kCode'); -const kData = Symbol('kData'); -const kError = Symbol('kError'); -const kMessage = Symbol('kMessage'); -const kReason = Symbol('kReason'); -const kTarget = Symbol('kTarget'); -const kType = Symbol('kType'); -const kWasClean = Symbol('kWasClean'); - -/** - * Class representing an event. - */ -class Event { - /** - * Create a new `Event`. - * - * @param {String} type The name of the event - * @throws {TypeError} If the `type` argument is not specified - */ - constructor(type) { - this[kTarget] = null; - this[kType] = type; - } - - /** - * @type {*} - */ - get target() { - return this[kTarget]; - } - - /** - * @type {String} - */ - get type() { - return this[kType]; - } -} - -Object.defineProperty(Event.prototype, 'target', { enumerable: true }); -Object.defineProperty(Event.prototype, 'type', { enumerable: true }); - -/** - * Class representing a close event. - * - * @extends Event - */ -class CloseEvent extends Event { - /** - * Create a new `CloseEvent`. - * - * @param {String} type The name of the event - * @param {Object} [options] A dictionary object that allows for setting - * attributes via object members of the same name - * @param {Number} [options.code=0] The status code explaining why the - * connection was closed - * @param {String} [options.reason=''] A human-readable string explaining why - * the connection was closed - * @param {Boolean} [options.wasClean=false] Indicates whether or not the - * connection was cleanly closed - */ - constructor(type, options = {}) { - super(type); - - this[kCode] = options.code === undefined ? 0 : options.code; - this[kReason] = options.reason === undefined ? '' : options.reason; - this[kWasClean] = options.wasClean === undefined ? false : options.wasClean; - } - - /** - * @type {Number} - */ - get code() { - return this[kCode]; - } - - /** - * @type {String} - */ - get reason() { - return this[kReason]; - } - - /** - * @type {Boolean} - */ - get wasClean() { - return this[kWasClean]; - } -} - -Object.defineProperty(CloseEvent.prototype, 'code', { enumerable: true }); -Object.defineProperty(CloseEvent.prototype, 'reason', { enumerable: true }); -Object.defineProperty(CloseEvent.prototype, 'wasClean', { enumerable: true }); - -/** - * Class representing an error event. - * - * @extends Event - */ -class ErrorEvent extends Event { - /** - * Create a new `ErrorEvent`. - * - * @param {String} type The name of the event - * @param {Object} [options] A dictionary object that allows for setting - * attributes via object members of the same name - * @param {*} [options.error=null] The error that generated this event - * @param {String} [options.message=''] The error message - */ - constructor(type, options = {}) { - super(type); - - this[kError] = options.error === undefined ? null : options.error; - this[kMessage] = options.message === undefined ? '' : options.message; - } - - /** - * @type {*} - */ - get error() { - return this[kError]; - } - - /** - * @type {String} - */ - get message() { - return this[kMessage]; - } -} - -Object.defineProperty(ErrorEvent.prototype, 'error', { enumerable: true }); -Object.defineProperty(ErrorEvent.prototype, 'message', { enumerable: true }); - -/** - * Class representing a message event. - * - * @extends Event - */ -class MessageEvent extends Event { - /** - * Create a new `MessageEvent`. - * - * @param {String} type The name of the event - * @param {Object} [options] A dictionary object that allows for setting - * attributes via object members of the same name - * @param {*} [options.data=null] The message content - */ - constructor(type, options = {}) { - super(type); - - this[kData] = options.data === undefined ? null : options.data; - } - - /** - * @type {*} - */ - get data() { - return this[kData]; - } -} - -Object.defineProperty(MessageEvent.prototype, 'data', { enumerable: true }); - -/** - * This provides methods for emulating the `EventTarget` interface. It's not - * meant to be used directly. - * - * @mixin - */ -const EventTarget = { - /** - * Register an event listener. - * - * @param {String} type A string representing the event type to listen for - * @param {(Function|Object)} handler The listener to add - * @param {Object} [options] An options object specifies characteristics about - * the event listener - * @param {Boolean} [options.once=false] A `Boolean` indicating that the - * listener should be invoked at most once after being added. If `true`, - * the listener would be automatically removed when invoked. - * @public - */ - addEventListener(type, handler, options = {}) { - for (const listener of this.listeners(type)) { - if ( - !options[kForOnEventAttribute] && - listener[kListener] === handler && - !listener[kForOnEventAttribute] - ) { - return; - } - } - - let wrapper; - - if (type === 'message') { - wrapper = function onMessage(data, isBinary) { - const event = new MessageEvent('message', { - data: isBinary ? data : data.toString() - }); - - event[kTarget] = this; - callListener(handler, this, event); - }; - } else if (type === 'close') { - wrapper = function onClose(code, message) { - const event = new CloseEvent('close', { - code, - reason: message.toString(), - wasClean: this._closeFrameReceived && this._closeFrameSent - }); - - event[kTarget] = this; - callListener(handler, this, event); - }; - } else if (type === 'error') { - wrapper = function onError(error) { - const event = new ErrorEvent('error', { - error, - message: error.message - }); - - event[kTarget] = this; - callListener(handler, this, event); - }; - } else if (type === 'open') { - wrapper = function onOpen() { - const event = new Event('open'); - - event[kTarget] = this; - callListener(handler, this, event); - }; - } else { - return; - } - - wrapper[kForOnEventAttribute] = !!options[kForOnEventAttribute]; - wrapper[kListener] = handler; - - if (options.once) { - this.once(type, wrapper); - } else { - this.on(type, wrapper); - } - }, - - /** - * Remove an event listener. - * - * @param {String} type A string representing the event type to remove - * @param {(Function|Object)} handler The listener to remove - * @public - */ - removeEventListener(type, handler) { - for (const listener of this.listeners(type)) { - if (listener[kListener] === handler && !listener[kForOnEventAttribute]) { - this.removeListener(type, listener); - break; - } - } - } -}; - -module.exports = { - CloseEvent, - ErrorEvent, - Event, - EventTarget, - MessageEvent -}; - -/** - * Call an event listener - * - * @param {(Function|Object)} listener The listener to call - * @param {*} thisArg The value to use as `this`` when calling the listener - * @param {Event} event The event to pass to the listener - * @private - */ -function callListener(listener, thisArg, event) { - if (typeof listener === 'object' && listener.handleEvent) { - listener.handleEvent.call(listener, event); - } else { - listener.call(thisArg, event); - } -} diff --git a/comproxy/node_modules/ws/lib/extension.js b/comproxy/node_modules/ws/lib/extension.js deleted file mode 100644 index 3d7895c..0000000 --- a/comproxy/node_modules/ws/lib/extension.js +++ /dev/null @@ -1,203 +0,0 @@ -'use strict'; - -const { tokenChars } = require('./validation'); - -/** - * Adds an offer to the map of extension offers or a parameter to the map of - * parameters. - * - * @param {Object} dest The map of extension offers or parameters - * @param {String} name The extension or parameter name - * @param {(Object|Boolean|String)} elem The extension parameters or the - * parameter value - * @private - */ -function push(dest, name, elem) { - if (dest[name] === undefined) dest[name] = [elem]; - else dest[name].push(elem); -} - -/** - * Parses the `Sec-WebSocket-Extensions` header into an object. - * - * @param {String} header The field value of the header - * @return {Object} The parsed object - * @public - */ -function parse(header) { - const offers = Object.create(null); - let params = Object.create(null); - let mustUnescape = false; - let isEscaping = false; - let inQuotes = false; - let extensionName; - let paramName; - let start = -1; - let code = -1; - let end = -1; - let i = 0; - - for (; i < header.length; i++) { - code = header.charCodeAt(i); - - if (extensionName === undefined) { - if (end === -1 && tokenChars[code] === 1) { - if (start === -1) start = i; - } else if ( - i !== 0 && - (code === 0x20 /* ' ' */ || code === 0x09) /* '\t' */ - ) { - if (end === -1 && start !== -1) end = i; - } else if (code === 0x3b /* ';' */ || code === 0x2c /* ',' */) { - if (start === -1) { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - - if (end === -1) end = i; - const name = header.slice(start, end); - if (code === 0x2c) { - push(offers, name, params); - params = Object.create(null); - } else { - extensionName = name; - } - - start = end = -1; - } else { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - } else if (paramName === undefined) { - if (end === -1 && tokenChars[code] === 1) { - if (start === -1) start = i; - } else if (code === 0x20 || code === 0x09) { - if (end === -1 && start !== -1) end = i; - } else if (code === 0x3b || code === 0x2c) { - if (start === -1) { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - - if (end === -1) end = i; - push(params, header.slice(start, end), true); - if (code === 0x2c) { - push(offers, extensionName, params); - params = Object.create(null); - extensionName = undefined; - } - - start = end = -1; - } else if (code === 0x3d /* '=' */ && start !== -1 && end === -1) { - paramName = header.slice(start, i); - start = end = -1; - } else { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - } else { - // - // The value of a quoted-string after unescaping must conform to the - // token ABNF, so only token characters are valid. - // Ref: https://tools.ietf.org/html/rfc6455#section-9.1 - // - if (isEscaping) { - if (tokenChars[code] !== 1) { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - if (start === -1) start = i; - else if (!mustUnescape) mustUnescape = true; - isEscaping = false; - } else if (inQuotes) { - if (tokenChars[code] === 1) { - if (start === -1) start = i; - } else if (code === 0x22 /* '"' */ && start !== -1) { - inQuotes = false; - end = i; - } else if (code === 0x5c /* '\' */) { - isEscaping = true; - } else { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - } else if (code === 0x22 && header.charCodeAt(i - 1) === 0x3d) { - inQuotes = true; - } else if (end === -1 && tokenChars[code] === 1) { - if (start === -1) start = i; - } else if (start !== -1 && (code === 0x20 || code === 0x09)) { - if (end === -1) end = i; - } else if (code === 0x3b || code === 0x2c) { - if (start === -1) { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - - if (end === -1) end = i; - let value = header.slice(start, end); - if (mustUnescape) { - value = value.replace(/\\/g, ''); - mustUnescape = false; - } - push(params, paramName, value); - if (code === 0x2c) { - push(offers, extensionName, params); - params = Object.create(null); - extensionName = undefined; - } - - paramName = undefined; - start = end = -1; - } else { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - } - } - - if (start === -1 || inQuotes || code === 0x20 || code === 0x09) { - throw new SyntaxError('Unexpected end of input'); - } - - if (end === -1) end = i; - const token = header.slice(start, end); - if (extensionName === undefined) { - push(offers, token, params); - } else { - if (paramName === undefined) { - push(params, token, true); - } else if (mustUnescape) { - push(params, paramName, token.replace(/\\/g, '')); - } else { - push(params, paramName, token); - } - push(offers, extensionName, params); - } - - return offers; -} - -/** - * Builds the `Sec-WebSocket-Extensions` header field value. - * - * @param {Object} extensions The map of extensions and parameters to format - * @return {String} A string representing the given object - * @public - */ -function format(extensions) { - return Object.keys(extensions) - .map((extension) => { - let configurations = extensions[extension]; - if (!Array.isArray(configurations)) configurations = [configurations]; - return configurations - .map((params) => { - return [extension] - .concat( - Object.keys(params).map((k) => { - let values = params[k]; - if (!Array.isArray(values)) values = [values]; - return values - .map((v) => (v === true ? k : `${k}=${v}`)) - .join('; '); - }) - ) - .join('; '); - }) - .join(', '); - }) - .join(', '); -} - -module.exports = { format, parse }; diff --git a/comproxy/node_modules/ws/lib/limiter.js b/comproxy/node_modules/ws/lib/limiter.js deleted file mode 100644 index 3fd3578..0000000 --- a/comproxy/node_modules/ws/lib/limiter.js +++ /dev/null @@ -1,55 +0,0 @@ -'use strict'; - -const kDone = Symbol('kDone'); -const kRun = Symbol('kRun'); - -/** - * A very simple job queue with adjustable concurrency. Adapted from - * https://github.com/STRML/async-limiter - */ -class Limiter { - /** - * Creates a new `Limiter`. - * - * @param {Number} [concurrency=Infinity] The maximum number of jobs allowed - * to run concurrently - */ - constructor(concurrency) { - this[kDone] = () => { - this.pending--; - this[kRun](); - }; - this.concurrency = concurrency || Infinity; - this.jobs = []; - this.pending = 0; - } - - /** - * Adds a job to the queue. - * - * @param {Function} job The job to run - * @public - */ - add(job) { - this.jobs.push(job); - this[kRun](); - } - - /** - * Removes a job from the queue and runs it if possible. - * - * @private - */ - [kRun]() { - if (this.pending === this.concurrency) return; - - if (this.jobs.length) { - const job = this.jobs.shift(); - - this.pending++; - job(this[kDone]); - } - } -} - -module.exports = Limiter; diff --git a/comproxy/node_modules/ws/lib/permessage-deflate.js b/comproxy/node_modules/ws/lib/permessage-deflate.js deleted file mode 100644 index 94603c9..0000000 --- a/comproxy/node_modules/ws/lib/permessage-deflate.js +++ /dev/null @@ -1,511 +0,0 @@ -'use strict'; - -const zlib = require('zlib'); - -const bufferUtil = require('./buffer-util'); -const Limiter = require('./limiter'); -const { kStatusCode } = require('./constants'); - -const TRAILER = Buffer.from([0x00, 0x00, 0xff, 0xff]); -const kPerMessageDeflate = Symbol('permessage-deflate'); -const kTotalLength = Symbol('total-length'); -const kCallback = Symbol('callback'); -const kBuffers = Symbol('buffers'); -const kError = Symbol('error'); - -// -// We limit zlib concurrency, which prevents severe memory fragmentation -// as documented in https://github.com/nodejs/node/issues/8871#issuecomment-250915913 -// and https://github.com/websockets/ws/issues/1202 -// -// Intentionally global; it's the global thread pool that's an issue. -// -let zlibLimiter; - -/** - * permessage-deflate implementation. - */ -class PerMessageDeflate { - /** - * Creates a PerMessageDeflate instance. - * - * @param {Object} [options] Configuration options - * @param {(Boolean|Number)} [options.clientMaxWindowBits] Advertise support - * for, or request, a custom client window size - * @param {Boolean} [options.clientNoContextTakeover=false] Advertise/ - * acknowledge disabling of client context takeover - * @param {Number} [options.concurrencyLimit=10] The number of concurrent - * calls to zlib - * @param {(Boolean|Number)} [options.serverMaxWindowBits] Request/confirm the - * use of a custom server window size - * @param {Boolean} [options.serverNoContextTakeover=false] Request/accept - * disabling of server context takeover - * @param {Number} [options.threshold=1024] Size (in bytes) below which - * messages should not be compressed if context takeover is disabled - * @param {Object} [options.zlibDeflateOptions] Options to pass to zlib on - * deflate - * @param {Object} [options.zlibInflateOptions] Options to pass to zlib on - * inflate - * @param {Boolean} [isServer=false] Create the instance in either server or - * client mode - * @param {Number} [maxPayload=0] The maximum allowed message length - */ - constructor(options, isServer, maxPayload) { - this._maxPayload = maxPayload | 0; - this._options = options || {}; - this._threshold = - this._options.threshold !== undefined ? this._options.threshold : 1024; - this._isServer = !!isServer; - this._deflate = null; - this._inflate = null; - - this.params = null; - - if (!zlibLimiter) { - const concurrency = - this._options.concurrencyLimit !== undefined - ? this._options.concurrencyLimit - : 10; - zlibLimiter = new Limiter(concurrency); - } - } - - /** - * @type {String} - */ - static get extensionName() { - return 'permessage-deflate'; - } - - /** - * Create an extension negotiation offer. - * - * @return {Object} Extension parameters - * @public - */ - offer() { - const params = {}; - - if (this._options.serverNoContextTakeover) { - params.server_no_context_takeover = true; - } - if (this._options.clientNoContextTakeover) { - params.client_no_context_takeover = true; - } - if (this._options.serverMaxWindowBits) { - params.server_max_window_bits = this._options.serverMaxWindowBits; - } - if (this._options.clientMaxWindowBits) { - params.client_max_window_bits = this._options.clientMaxWindowBits; - } else if (this._options.clientMaxWindowBits == null) { - params.client_max_window_bits = true; - } - - return params; - } - - /** - * Accept an extension negotiation offer/response. - * - * @param {Array} configurations The extension negotiation offers/reponse - * @return {Object} Accepted configuration - * @public - */ - accept(configurations) { - configurations = this.normalizeParams(configurations); - - this.params = this._isServer - ? this.acceptAsServer(configurations) - : this.acceptAsClient(configurations); - - return this.params; - } - - /** - * Releases all resources used by the extension. - * - * @public - */ - cleanup() { - if (this._inflate) { - this._inflate.close(); - this._inflate = null; - } - - if (this._deflate) { - const callback = this._deflate[kCallback]; - - this._deflate.close(); - this._deflate = null; - - if (callback) { - callback( - new Error( - 'The deflate stream was closed while data was being processed' - ) - ); - } - } - } - - /** - * Accept an extension negotiation offer. - * - * @param {Array} offers The extension negotiation offers - * @return {Object} Accepted configuration - * @private - */ - acceptAsServer(offers) { - const opts = this._options; - const accepted = offers.find((params) => { - if ( - (opts.serverNoContextTakeover === false && - params.server_no_context_takeover) || - (params.server_max_window_bits && - (opts.serverMaxWindowBits === false || - (typeof opts.serverMaxWindowBits === 'number' && - opts.serverMaxWindowBits > params.server_max_window_bits))) || - (typeof opts.clientMaxWindowBits === 'number' && - !params.client_max_window_bits) - ) { - return false; - } - - return true; - }); - - if (!accepted) { - throw new Error('None of the extension offers can be accepted'); - } - - if (opts.serverNoContextTakeover) { - accepted.server_no_context_takeover = true; - } - if (opts.clientNoContextTakeover) { - accepted.client_no_context_takeover = true; - } - if (typeof opts.serverMaxWindowBits === 'number') { - accepted.server_max_window_bits = opts.serverMaxWindowBits; - } - if (typeof opts.clientMaxWindowBits === 'number') { - accepted.client_max_window_bits = opts.clientMaxWindowBits; - } else if ( - accepted.client_max_window_bits === true || - opts.clientMaxWindowBits === false - ) { - delete accepted.client_max_window_bits; - } - - return accepted; - } - - /** - * Accept the extension negotiation response. - * - * @param {Array} response The extension negotiation response - * @return {Object} Accepted configuration - * @private - */ - acceptAsClient(response) { - const params = response[0]; - - if ( - this._options.clientNoContextTakeover === false && - params.client_no_context_takeover - ) { - throw new Error('Unexpected parameter "client_no_context_takeover"'); - } - - if (!params.client_max_window_bits) { - if (typeof this._options.clientMaxWindowBits === 'number') { - params.client_max_window_bits = this._options.clientMaxWindowBits; - } - } else if ( - this._options.clientMaxWindowBits === false || - (typeof this._options.clientMaxWindowBits === 'number' && - params.client_max_window_bits > this._options.clientMaxWindowBits) - ) { - throw new Error( - 'Unexpected or invalid parameter "client_max_window_bits"' - ); - } - - return params; - } - - /** - * Normalize parameters. - * - * @param {Array} configurations The extension negotiation offers/reponse - * @return {Array} The offers/response with normalized parameters - * @private - */ - normalizeParams(configurations) { - configurations.forEach((params) => { - Object.keys(params).forEach((key) => { - let value = params[key]; - - if (value.length > 1) { - throw new Error(`Parameter "${key}" must have only a single value`); - } - - value = value[0]; - - if (key === 'client_max_window_bits') { - if (value !== true) { - const num = +value; - if (!Number.isInteger(num) || num < 8 || num > 15) { - throw new TypeError( - `Invalid value for parameter "${key}": ${value}` - ); - } - value = num; - } else if (!this._isServer) { - throw new TypeError( - `Invalid value for parameter "${key}": ${value}` - ); - } - } else if (key === 'server_max_window_bits') { - const num = +value; - if (!Number.isInteger(num) || num < 8 || num > 15) { - throw new TypeError( - `Invalid value for parameter "${key}": ${value}` - ); - } - value = num; - } else if ( - key === 'client_no_context_takeover' || - key === 'server_no_context_takeover' - ) { - if (value !== true) { - throw new TypeError( - `Invalid value for parameter "${key}": ${value}` - ); - } - } else { - throw new Error(`Unknown parameter "${key}"`); - } - - params[key] = value; - }); - }); - - return configurations; - } - - /** - * Decompress data. Concurrency limited. - * - * @param {Buffer} data Compressed data - * @param {Boolean} fin Specifies whether or not this is the last fragment - * @param {Function} callback Callback - * @public - */ - decompress(data, fin, callback) { - zlibLimiter.add((done) => { - this._decompress(data, fin, (err, result) => { - done(); - callback(err, result); - }); - }); - } - - /** - * Compress data. Concurrency limited. - * - * @param {(Buffer|String)} data Data to compress - * @param {Boolean} fin Specifies whether or not this is the last fragment - * @param {Function} callback Callback - * @public - */ - compress(data, fin, callback) { - zlibLimiter.add((done) => { - this._compress(data, fin, (err, result) => { - done(); - callback(err, result); - }); - }); - } - - /** - * Decompress data. - * - * @param {Buffer} data Compressed data - * @param {Boolean} fin Specifies whether or not this is the last fragment - * @param {Function} callback Callback - * @private - */ - _decompress(data, fin, callback) { - const endpoint = this._isServer ? 'client' : 'server'; - - if (!this._inflate) { - const key = `${endpoint}_max_window_bits`; - const windowBits = - typeof this.params[key] !== 'number' - ? zlib.Z_DEFAULT_WINDOWBITS - : this.params[key]; - - this._inflate = zlib.createInflateRaw({ - ...this._options.zlibInflateOptions, - windowBits - }); - this._inflate[kPerMessageDeflate] = this; - this._inflate[kTotalLength] = 0; - this._inflate[kBuffers] = []; - this._inflate.on('error', inflateOnError); - this._inflate.on('data', inflateOnData); - } - - this._inflate[kCallback] = callback; - - this._inflate.write(data); - if (fin) this._inflate.write(TRAILER); - - this._inflate.flush(() => { - const err = this._inflate[kError]; - - if (err) { - this._inflate.close(); - this._inflate = null; - callback(err); - return; - } - - const data = bufferUtil.concat( - this._inflate[kBuffers], - this._inflate[kTotalLength] - ); - - if (this._inflate._readableState.endEmitted) { - this._inflate.close(); - this._inflate = null; - } else { - this._inflate[kTotalLength] = 0; - this._inflate[kBuffers] = []; - - if (fin && this.params[`${endpoint}_no_context_takeover`]) { - this._inflate.reset(); - } - } - - callback(null, data); - }); - } - - /** - * Compress data. - * - * @param {(Buffer|String)} data Data to compress - * @param {Boolean} fin Specifies whether or not this is the last fragment - * @param {Function} callback Callback - * @private - */ - _compress(data, fin, callback) { - const endpoint = this._isServer ? 'server' : 'client'; - - if (!this._deflate) { - const key = `${endpoint}_max_window_bits`; - const windowBits = - typeof this.params[key] !== 'number' - ? zlib.Z_DEFAULT_WINDOWBITS - : this.params[key]; - - this._deflate = zlib.createDeflateRaw({ - ...this._options.zlibDeflateOptions, - windowBits - }); - - this._deflate[kTotalLength] = 0; - this._deflate[kBuffers] = []; - - this._deflate.on('data', deflateOnData); - } - - this._deflate[kCallback] = callback; - - this._deflate.write(data); - this._deflate.flush(zlib.Z_SYNC_FLUSH, () => { - if (!this._deflate) { - // - // The deflate stream was closed while data was being processed. - // - return; - } - - let data = bufferUtil.concat( - this._deflate[kBuffers], - this._deflate[kTotalLength] - ); - - if (fin) data = data.slice(0, data.length - 4); - - // - // Ensure that the callback will not be called again in - // `PerMessageDeflate#cleanup()`. - // - this._deflate[kCallback] = null; - - this._deflate[kTotalLength] = 0; - this._deflate[kBuffers] = []; - - if (fin && this.params[`${endpoint}_no_context_takeover`]) { - this._deflate.reset(); - } - - callback(null, data); - }); - } -} - -module.exports = PerMessageDeflate; - -/** - * The listener of the `zlib.DeflateRaw` stream `'data'` event. - * - * @param {Buffer} chunk A chunk of data - * @private - */ -function deflateOnData(chunk) { - this[kBuffers].push(chunk); - this[kTotalLength] += chunk.length; -} - -/** - * The listener of the `zlib.InflateRaw` stream `'data'` event. - * - * @param {Buffer} chunk A chunk of data - * @private - */ -function inflateOnData(chunk) { - this[kTotalLength] += chunk.length; - - if ( - this[kPerMessageDeflate]._maxPayload < 1 || - this[kTotalLength] <= this[kPerMessageDeflate]._maxPayload - ) { - this[kBuffers].push(chunk); - return; - } - - this[kError] = new RangeError('Max payload size exceeded'); - this[kError].code = 'WS_ERR_UNSUPPORTED_MESSAGE_LENGTH'; - this[kError][kStatusCode] = 1009; - this.removeListener('data', inflateOnData); - this.reset(); -} - -/** - * The listener of the `zlib.InflateRaw` stream `'error'` event. - * - * @param {Error} err The emitted error - * @private - */ -function inflateOnError(err) { - // - // There is no need to call `Zlib#close()` as the handle is automatically - // closed when an error is emitted. - // - this[kPerMessageDeflate]._inflate = null; - err[kStatusCode] = 1007; - this[kCallback](err); -} diff --git a/comproxy/node_modules/ws/lib/receiver.js b/comproxy/node_modules/ws/lib/receiver.js deleted file mode 100644 index 2d29d62..0000000 --- a/comproxy/node_modules/ws/lib/receiver.js +++ /dev/null @@ -1,618 +0,0 @@ -'use strict'; - -const { Writable } = require('stream'); - -const PerMessageDeflate = require('./permessage-deflate'); -const { - BINARY_TYPES, - EMPTY_BUFFER, - kStatusCode, - kWebSocket -} = require('./constants'); -const { concat, toArrayBuffer, unmask } = require('./buffer-util'); -const { isValidStatusCode, isValidUTF8 } = require('./validation'); - -const GET_INFO = 0; -const GET_PAYLOAD_LENGTH_16 = 1; -const GET_PAYLOAD_LENGTH_64 = 2; -const GET_MASK = 3; -const GET_DATA = 4; -const INFLATING = 5; - -/** - * HyBi Receiver implementation. - * - * @extends Writable - */ -class Receiver extends Writable { - /** - * Creates a Receiver instance. - * - * @param {Object} [options] Options object - * @param {String} [options.binaryType=nodebuffer] The type for binary data - * @param {Object} [options.extensions] An object containing the negotiated - * extensions - * @param {Boolean} [options.isServer=false] Specifies whether to operate in - * client or server mode - * @param {Number} [options.maxPayload=0] The maximum allowed message length - * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or - * not to skip UTF-8 validation for text and close messages - */ - constructor(options = {}) { - super(); - - this._binaryType = options.binaryType || BINARY_TYPES[0]; - this._extensions = options.extensions || {}; - this._isServer = !!options.isServer; - this._maxPayload = options.maxPayload | 0; - this._skipUTF8Validation = !!options.skipUTF8Validation; - this[kWebSocket] = undefined; - - this._bufferedBytes = 0; - this._buffers = []; - - this._compressed = false; - this._payloadLength = 0; - this._mask = undefined; - this._fragmented = 0; - this._masked = false; - this._fin = false; - this._opcode = 0; - - this._totalPayloadLength = 0; - this._messageLength = 0; - this._fragments = []; - - this._state = GET_INFO; - this._loop = false; - } - - /** - * Implements `Writable.prototype._write()`. - * - * @param {Buffer} chunk The chunk of data to write - * @param {String} encoding The character encoding of `chunk` - * @param {Function} cb Callback - * @private - */ - _write(chunk, encoding, cb) { - if (this._opcode === 0x08 && this._state == GET_INFO) return cb(); - - this._bufferedBytes += chunk.length; - this._buffers.push(chunk); - this.startLoop(cb); - } - - /** - * Consumes `n` bytes from the buffered data. - * - * @param {Number} n The number of bytes to consume - * @return {Buffer} The consumed bytes - * @private - */ - consume(n) { - this._bufferedBytes -= n; - - if (n === this._buffers[0].length) return this._buffers.shift(); - - if (n < this._buffers[0].length) { - const buf = this._buffers[0]; - this._buffers[0] = buf.slice(n); - return buf.slice(0, n); - } - - const dst = Buffer.allocUnsafe(n); - - do { - const buf = this._buffers[0]; - const offset = dst.length - n; - - if (n >= buf.length) { - dst.set(this._buffers.shift(), offset); - } else { - dst.set(new Uint8Array(buf.buffer, buf.byteOffset, n), offset); - this._buffers[0] = buf.slice(n); - } - - n -= buf.length; - } while (n > 0); - - return dst; - } - - /** - * Starts the parsing loop. - * - * @param {Function} cb Callback - * @private - */ - startLoop(cb) { - let err; - this._loop = true; - - do { - switch (this._state) { - case GET_INFO: - err = this.getInfo(); - break; - case GET_PAYLOAD_LENGTH_16: - err = this.getPayloadLength16(); - break; - case GET_PAYLOAD_LENGTH_64: - err = this.getPayloadLength64(); - break; - case GET_MASK: - this.getMask(); - break; - case GET_DATA: - err = this.getData(cb); - break; - default: - // `INFLATING` - this._loop = false; - return; - } - } while (this._loop); - - cb(err); - } - - /** - * Reads the first two bytes of a frame. - * - * @return {(RangeError|undefined)} A possible error - * @private - */ - getInfo() { - if (this._bufferedBytes < 2) { - this._loop = false; - return; - } - - const buf = this.consume(2); - - if ((buf[0] & 0x30) !== 0x00) { - this._loop = false; - return error( - RangeError, - 'RSV2 and RSV3 must be clear', - true, - 1002, - 'WS_ERR_UNEXPECTED_RSV_2_3' - ); - } - - const compressed = (buf[0] & 0x40) === 0x40; - - if (compressed && !this._extensions[PerMessageDeflate.extensionName]) { - this._loop = false; - return error( - RangeError, - 'RSV1 must be clear', - true, - 1002, - 'WS_ERR_UNEXPECTED_RSV_1' - ); - } - - this._fin = (buf[0] & 0x80) === 0x80; - this._opcode = buf[0] & 0x0f; - this._payloadLength = buf[1] & 0x7f; - - if (this._opcode === 0x00) { - if (compressed) { - this._loop = false; - return error( - RangeError, - 'RSV1 must be clear', - true, - 1002, - 'WS_ERR_UNEXPECTED_RSV_1' - ); - } - - if (!this._fragmented) { - this._loop = false; - return error( - RangeError, - 'invalid opcode 0', - true, - 1002, - 'WS_ERR_INVALID_OPCODE' - ); - } - - this._opcode = this._fragmented; - } else if (this._opcode === 0x01 || this._opcode === 0x02) { - if (this._fragmented) { - this._loop = false; - return error( - RangeError, - `invalid opcode ${this._opcode}`, - true, - 1002, - 'WS_ERR_INVALID_OPCODE' - ); - } - - this._compressed = compressed; - } else if (this._opcode > 0x07 && this._opcode < 0x0b) { - if (!this._fin) { - this._loop = false; - return error( - RangeError, - 'FIN must be set', - true, - 1002, - 'WS_ERR_EXPECTED_FIN' - ); - } - - if (compressed) { - this._loop = false; - return error( - RangeError, - 'RSV1 must be clear', - true, - 1002, - 'WS_ERR_UNEXPECTED_RSV_1' - ); - } - - if (this._payloadLength > 0x7d) { - this._loop = false; - return error( - RangeError, - `invalid payload length ${this._payloadLength}`, - true, - 1002, - 'WS_ERR_INVALID_CONTROL_PAYLOAD_LENGTH' - ); - } - } else { - this._loop = false; - return error( - RangeError, - `invalid opcode ${this._opcode}`, - true, - 1002, - 'WS_ERR_INVALID_OPCODE' - ); - } - - if (!this._fin && !this._fragmented) this._fragmented = this._opcode; - this._masked = (buf[1] & 0x80) === 0x80; - - if (this._isServer) { - if (!this._masked) { - this._loop = false; - return error( - RangeError, - 'MASK must be set', - true, - 1002, - 'WS_ERR_EXPECTED_MASK' - ); - } - } else if (this._masked) { - this._loop = false; - return error( - RangeError, - 'MASK must be clear', - true, - 1002, - 'WS_ERR_UNEXPECTED_MASK' - ); - } - - if (this._payloadLength === 126) this._state = GET_PAYLOAD_LENGTH_16; - else if (this._payloadLength === 127) this._state = GET_PAYLOAD_LENGTH_64; - else return this.haveLength(); - } - - /** - * Gets extended payload length (7+16). - * - * @return {(RangeError|undefined)} A possible error - * @private - */ - getPayloadLength16() { - if (this._bufferedBytes < 2) { - this._loop = false; - return; - } - - this._payloadLength = this.consume(2).readUInt16BE(0); - return this.haveLength(); - } - - /** - * Gets extended payload length (7+64). - * - * @return {(RangeError|undefined)} A possible error - * @private - */ - getPayloadLength64() { - if (this._bufferedBytes < 8) { - this._loop = false; - return; - } - - const buf = this.consume(8); - const num = buf.readUInt32BE(0); - - // - // The maximum safe integer in JavaScript is 2^53 - 1. An error is returned - // if payload length is greater than this number. - // - if (num > Math.pow(2, 53 - 32) - 1) { - this._loop = false; - return error( - RangeError, - 'Unsupported WebSocket frame: payload length > 2^53 - 1', - false, - 1009, - 'WS_ERR_UNSUPPORTED_DATA_PAYLOAD_LENGTH' - ); - } - - this._payloadLength = num * Math.pow(2, 32) + buf.readUInt32BE(4); - return this.haveLength(); - } - - /** - * Payload length has been read. - * - * @return {(RangeError|undefined)} A possible error - * @private - */ - haveLength() { - if (this._payloadLength && this._opcode < 0x08) { - this._totalPayloadLength += this._payloadLength; - if (this._totalPayloadLength > this._maxPayload && this._maxPayload > 0) { - this._loop = false; - return error( - RangeError, - 'Max payload size exceeded', - false, - 1009, - 'WS_ERR_UNSUPPORTED_MESSAGE_LENGTH' - ); - } - } - - if (this._masked) this._state = GET_MASK; - else this._state = GET_DATA; - } - - /** - * Reads mask bytes. - * - * @private - */ - getMask() { - if (this._bufferedBytes < 4) { - this._loop = false; - return; - } - - this._mask = this.consume(4); - this._state = GET_DATA; - } - - /** - * Reads data bytes. - * - * @param {Function} cb Callback - * @return {(Error|RangeError|undefined)} A possible error - * @private - */ - getData(cb) { - let data = EMPTY_BUFFER; - - if (this._payloadLength) { - if (this._bufferedBytes < this._payloadLength) { - this._loop = false; - return; - } - - data = this.consume(this._payloadLength); - - if ( - this._masked && - (this._mask[0] | this._mask[1] | this._mask[2] | this._mask[3]) !== 0 - ) { - unmask(data, this._mask); - } - } - - if (this._opcode > 0x07) return this.controlMessage(data); - - if (this._compressed) { - this._state = INFLATING; - this.decompress(data, cb); - return; - } - - if (data.length) { - // - // This message is not compressed so its length is the sum of the payload - // length of all fragments. - // - this._messageLength = this._totalPayloadLength; - this._fragments.push(data); - } - - return this.dataMessage(); - } - - /** - * Decompresses data. - * - * @param {Buffer} data Compressed data - * @param {Function} cb Callback - * @private - */ - decompress(data, cb) { - const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName]; - - perMessageDeflate.decompress(data, this._fin, (err, buf) => { - if (err) return cb(err); - - if (buf.length) { - this._messageLength += buf.length; - if (this._messageLength > this._maxPayload && this._maxPayload > 0) { - return cb( - error( - RangeError, - 'Max payload size exceeded', - false, - 1009, - 'WS_ERR_UNSUPPORTED_MESSAGE_LENGTH' - ) - ); - } - - this._fragments.push(buf); - } - - const er = this.dataMessage(); - if (er) return cb(er); - - this.startLoop(cb); - }); - } - - /** - * Handles a data message. - * - * @return {(Error|undefined)} A possible error - * @private - */ - dataMessage() { - if (this._fin) { - const messageLength = this._messageLength; - const fragments = this._fragments; - - this._totalPayloadLength = 0; - this._messageLength = 0; - this._fragmented = 0; - this._fragments = []; - - if (this._opcode === 2) { - let data; - - if (this._binaryType === 'nodebuffer') { - data = concat(fragments, messageLength); - } else if (this._binaryType === 'arraybuffer') { - data = toArrayBuffer(concat(fragments, messageLength)); - } else { - data = fragments; - } - - this.emit('message', data, true); - } else { - const buf = concat(fragments, messageLength); - - if (!this._skipUTF8Validation && !isValidUTF8(buf)) { - this._loop = false; - return error( - Error, - 'invalid UTF-8 sequence', - true, - 1007, - 'WS_ERR_INVALID_UTF8' - ); - } - - this.emit('message', buf, false); - } - } - - this._state = GET_INFO; - } - - /** - * Handles a control message. - * - * @param {Buffer} data Data to handle - * @return {(Error|RangeError|undefined)} A possible error - * @private - */ - controlMessage(data) { - if (this._opcode === 0x08) { - this._loop = false; - - if (data.length === 0) { - this.emit('conclude', 1005, EMPTY_BUFFER); - this.end(); - } else if (data.length === 1) { - return error( - RangeError, - 'invalid payload length 1', - true, - 1002, - 'WS_ERR_INVALID_CONTROL_PAYLOAD_LENGTH' - ); - } else { - const code = data.readUInt16BE(0); - - if (!isValidStatusCode(code)) { - return error( - RangeError, - `invalid status code ${code}`, - true, - 1002, - 'WS_ERR_INVALID_CLOSE_CODE' - ); - } - - const buf = data.slice(2); - - if (!this._skipUTF8Validation && !isValidUTF8(buf)) { - return error( - Error, - 'invalid UTF-8 sequence', - true, - 1007, - 'WS_ERR_INVALID_UTF8' - ); - } - - this.emit('conclude', code, buf); - this.end(); - } - } else if (this._opcode === 0x09) { - this.emit('ping', data); - } else { - this.emit('pong', data); - } - - this._state = GET_INFO; - } -} - -module.exports = Receiver; - -/** - * Builds an error object. - * - * @param {function(new:Error|RangeError)} ErrorCtor The error constructor - * @param {String} message The error message - * @param {Boolean} prefix Specifies whether or not to add a default prefix to - * `message` - * @param {Number} statusCode The status code - * @param {String} errorCode The exposed error code - * @return {(Error|RangeError)} The error - * @private - */ -function error(ErrorCtor, message, prefix, statusCode, errorCode) { - const err = new ErrorCtor( - prefix ? `Invalid WebSocket frame: ${message}` : message - ); - - Error.captureStackTrace(err, error); - err.code = errorCode; - err[kStatusCode] = statusCode; - return err; -} diff --git a/comproxy/node_modules/ws/lib/sender.js b/comproxy/node_modules/ws/lib/sender.js deleted file mode 100644 index c848853..0000000 --- a/comproxy/node_modules/ws/lib/sender.js +++ /dev/null @@ -1,478 +0,0 @@ -/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^net|tls$" }] */ - -'use strict'; - -const net = require('net'); -const tls = require('tls'); -const { randomFillSync } = require('crypto'); - -const PerMessageDeflate = require('./permessage-deflate'); -const { EMPTY_BUFFER } = require('./constants'); -const { isValidStatusCode } = require('./validation'); -const { mask: applyMask, toBuffer } = require('./buffer-util'); - -const kByteLength = Symbol('kByteLength'); -const maskBuffer = Buffer.alloc(4); - -/** - * HyBi Sender implementation. - */ -class Sender { - /** - * Creates a Sender instance. - * - * @param {(net.Socket|tls.Socket)} socket The connection socket - * @param {Object} [extensions] An object containing the negotiated extensions - * @param {Function} [generateMask] The function used to generate the masking - * key - */ - constructor(socket, extensions, generateMask) { - this._extensions = extensions || {}; - - if (generateMask) { - this._generateMask = generateMask; - this._maskBuffer = Buffer.alloc(4); - } - - this._socket = socket; - - this._firstFragment = true; - this._compress = false; - - this._bufferedBytes = 0; - this._deflating = false; - this._queue = []; - } - - /** - * Frames a piece of data according to the HyBi WebSocket protocol. - * - * @param {(Buffer|String)} data The data to frame - * @param {Object} options Options object - * @param {Boolean} [options.fin=false] Specifies whether or not to set the - * FIN bit - * @param {Function} [options.generateMask] The function used to generate the - * masking key - * @param {Boolean} [options.mask=false] Specifies whether or not to mask - * `data` - * @param {Buffer} [options.maskBuffer] The buffer used to store the masking - * key - * @param {Number} options.opcode The opcode - * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be - * modified - * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the - * RSV1 bit - * @return {(Buffer|String)[]} The framed data - * @public - */ - static frame(data, options) { - let mask; - let merge = false; - let offset = 2; - let skipMasking = false; - - if (options.mask) { - mask = options.maskBuffer || maskBuffer; - - if (options.generateMask) { - options.generateMask(mask); - } else { - randomFillSync(mask, 0, 4); - } - - skipMasking = (mask[0] | mask[1] | mask[2] | mask[3]) === 0; - offset = 6; - } - - let dataLength; - - if (typeof data === 'string') { - if ( - (!options.mask || skipMasking) && - options[kByteLength] !== undefined - ) { - dataLength = options[kByteLength]; - } else { - data = Buffer.from(data); - dataLength = data.length; - } - } else { - dataLength = data.length; - merge = options.mask && options.readOnly && !skipMasking; - } - - let payloadLength = dataLength; - - if (dataLength >= 65536) { - offset += 8; - payloadLength = 127; - } else if (dataLength > 125) { - offset += 2; - payloadLength = 126; - } - - const target = Buffer.allocUnsafe(merge ? dataLength + offset : offset); - - target[0] = options.fin ? options.opcode | 0x80 : options.opcode; - if (options.rsv1) target[0] |= 0x40; - - target[1] = payloadLength; - - if (payloadLength === 126) { - target.writeUInt16BE(dataLength, 2); - } else if (payloadLength === 127) { - target[2] = target[3] = 0; - target.writeUIntBE(dataLength, 4, 6); - } - - if (!options.mask) return [target, data]; - - target[1] |= 0x80; - target[offset - 4] = mask[0]; - target[offset - 3] = mask[1]; - target[offset - 2] = mask[2]; - target[offset - 1] = mask[3]; - - if (skipMasking) return [target, data]; - - if (merge) { - applyMask(data, mask, target, offset, dataLength); - return [target]; - } - - applyMask(data, mask, data, 0, dataLength); - return [target, data]; - } - - /** - * Sends a close message to the other peer. - * - * @param {Number} [code] The status code component of the body - * @param {(String|Buffer)} [data] The message component of the body - * @param {Boolean} [mask=false] Specifies whether or not to mask the message - * @param {Function} [cb] Callback - * @public - */ - close(code, data, mask, cb) { - let buf; - - if (code === undefined) { - buf = EMPTY_BUFFER; - } else if (typeof code !== 'number' || !isValidStatusCode(code)) { - throw new TypeError('First argument must be a valid error code number'); - } else if (data === undefined || !data.length) { - buf = Buffer.allocUnsafe(2); - buf.writeUInt16BE(code, 0); - } else { - const length = Buffer.byteLength(data); - - if (length > 123) { - throw new RangeError('The message must not be greater than 123 bytes'); - } - - buf = Buffer.allocUnsafe(2 + length); - buf.writeUInt16BE(code, 0); - - if (typeof data === 'string') { - buf.write(data, 2); - } else { - buf.set(data, 2); - } - } - - const options = { - [kByteLength]: buf.length, - fin: true, - generateMask: this._generateMask, - mask, - maskBuffer: this._maskBuffer, - opcode: 0x08, - readOnly: false, - rsv1: false - }; - - if (this._deflating) { - this.enqueue([this.dispatch, buf, false, options, cb]); - } else { - this.sendFrame(Sender.frame(buf, options), cb); - } - } - - /** - * Sends a ping message to the other peer. - * - * @param {*} data The message to send - * @param {Boolean} [mask=false] Specifies whether or not to mask `data` - * @param {Function} [cb] Callback - * @public - */ - ping(data, mask, cb) { - let byteLength; - let readOnly; - - if (typeof data === 'string') { - byteLength = Buffer.byteLength(data); - readOnly = false; - } else { - data = toBuffer(data); - byteLength = data.length; - readOnly = toBuffer.readOnly; - } - - if (byteLength > 125) { - throw new RangeError('The data size must not be greater than 125 bytes'); - } - - const options = { - [kByteLength]: byteLength, - fin: true, - generateMask: this._generateMask, - mask, - maskBuffer: this._maskBuffer, - opcode: 0x09, - readOnly, - rsv1: false - }; - - if (this._deflating) { - this.enqueue([this.dispatch, data, false, options, cb]); - } else { - this.sendFrame(Sender.frame(data, options), cb); - } - } - - /** - * Sends a pong message to the other peer. - * - * @param {*} data The message to send - * @param {Boolean} [mask=false] Specifies whether or not to mask `data` - * @param {Function} [cb] Callback - * @public - */ - pong(data, mask, cb) { - let byteLength; - let readOnly; - - if (typeof data === 'string') { - byteLength = Buffer.byteLength(data); - readOnly = false; - } else { - data = toBuffer(data); - byteLength = data.length; - readOnly = toBuffer.readOnly; - } - - if (byteLength > 125) { - throw new RangeError('The data size must not be greater than 125 bytes'); - } - - const options = { - [kByteLength]: byteLength, - fin: true, - generateMask: this._generateMask, - mask, - maskBuffer: this._maskBuffer, - opcode: 0x0a, - readOnly, - rsv1: false - }; - - if (this._deflating) { - this.enqueue([this.dispatch, data, false, options, cb]); - } else { - this.sendFrame(Sender.frame(data, options), cb); - } - } - - /** - * Sends a data message to the other peer. - * - * @param {*} data The message to send - * @param {Object} options Options object - * @param {Boolean} [options.binary=false] Specifies whether `data` is binary - * or text - * @param {Boolean} [options.compress=false] Specifies whether or not to - * compress `data` - * @param {Boolean} [options.fin=false] Specifies whether the fragment is the - * last one - * @param {Boolean} [options.mask=false] Specifies whether or not to mask - * `data` - * @param {Function} [cb] Callback - * @public - */ - send(data, options, cb) { - const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName]; - let opcode = options.binary ? 2 : 1; - let rsv1 = options.compress; - - let byteLength; - let readOnly; - - if (typeof data === 'string') { - byteLength = Buffer.byteLength(data); - readOnly = false; - } else { - data = toBuffer(data); - byteLength = data.length; - readOnly = toBuffer.readOnly; - } - - if (this._firstFragment) { - this._firstFragment = false; - if ( - rsv1 && - perMessageDeflate && - perMessageDeflate.params[ - perMessageDeflate._isServer - ? 'server_no_context_takeover' - : 'client_no_context_takeover' - ] - ) { - rsv1 = byteLength >= perMessageDeflate._threshold; - } - this._compress = rsv1; - } else { - rsv1 = false; - opcode = 0; - } - - if (options.fin) this._firstFragment = true; - - if (perMessageDeflate) { - const opts = { - [kByteLength]: byteLength, - fin: options.fin, - generateMask: this._generateMask, - mask: options.mask, - maskBuffer: this._maskBuffer, - opcode, - readOnly, - rsv1 - }; - - if (this._deflating) { - this.enqueue([this.dispatch, data, this._compress, opts, cb]); - } else { - this.dispatch(data, this._compress, opts, cb); - } - } else { - this.sendFrame( - Sender.frame(data, { - [kByteLength]: byteLength, - fin: options.fin, - generateMask: this._generateMask, - mask: options.mask, - maskBuffer: this._maskBuffer, - opcode, - readOnly, - rsv1: false - }), - cb - ); - } - } - - /** - * Dispatches a message. - * - * @param {(Buffer|String)} data The message to send - * @param {Boolean} [compress=false] Specifies whether or not to compress - * `data` - * @param {Object} options Options object - * @param {Boolean} [options.fin=false] Specifies whether or not to set the - * FIN bit - * @param {Function} [options.generateMask] The function used to generate the - * masking key - * @param {Boolean} [options.mask=false] Specifies whether or not to mask - * `data` - * @param {Buffer} [options.maskBuffer] The buffer used to store the masking - * key - * @param {Number} options.opcode The opcode - * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be - * modified - * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the - * RSV1 bit - * @param {Function} [cb] Callback - * @private - */ - dispatch(data, compress, options, cb) { - if (!compress) { - this.sendFrame(Sender.frame(data, options), cb); - return; - } - - const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName]; - - this._bufferedBytes += options[kByteLength]; - this._deflating = true; - perMessageDeflate.compress(data, options.fin, (_, buf) => { - if (this._socket.destroyed) { - const err = new Error( - 'The socket was closed while data was being compressed' - ); - - if (typeof cb === 'function') cb(err); - - for (let i = 0; i < this._queue.length; i++) { - const params = this._queue[i]; - const callback = params[params.length - 1]; - - if (typeof callback === 'function') callback(err); - } - - return; - } - - this._bufferedBytes -= options[kByteLength]; - this._deflating = false; - options.readOnly = false; - this.sendFrame(Sender.frame(buf, options), cb); - this.dequeue(); - }); - } - - /** - * Executes queued send operations. - * - * @private - */ - dequeue() { - while (!this._deflating && this._queue.length) { - const params = this._queue.shift(); - - this._bufferedBytes -= params[3][kByteLength]; - Reflect.apply(params[0], this, params.slice(1)); - } - } - - /** - * Enqueues a send operation. - * - * @param {Array} params Send operation parameters. - * @private - */ - enqueue(params) { - this._bufferedBytes += params[3][kByteLength]; - this._queue.push(params); - } - - /** - * Sends a frame. - * - * @param {Buffer[]} list The frame to send - * @param {Function} [cb] Callback - * @private - */ - sendFrame(list, cb) { - if (list.length === 2) { - this._socket.cork(); - this._socket.write(list[0]); - this._socket.write(list[1], cb); - this._socket.uncork(); - } else { - this._socket.write(list[0], cb); - } - } -} - -module.exports = Sender; diff --git a/comproxy/node_modules/ws/lib/stream.js b/comproxy/node_modules/ws/lib/stream.js deleted file mode 100644 index 230734b..0000000 --- a/comproxy/node_modules/ws/lib/stream.js +++ /dev/null @@ -1,159 +0,0 @@ -'use strict'; - -const { Duplex } = require('stream'); - -/** - * Emits the `'close'` event on a stream. - * - * @param {Duplex} stream The stream. - * @private - */ -function emitClose(stream) { - stream.emit('close'); -} - -/** - * The listener of the `'end'` event. - * - * @private - */ -function duplexOnEnd() { - if (!this.destroyed && this._writableState.finished) { - this.destroy(); - } -} - -/** - * The listener of the `'error'` event. - * - * @param {Error} err The error - * @private - */ -function duplexOnError(err) { - this.removeListener('error', duplexOnError); - this.destroy(); - if (this.listenerCount('error') === 0) { - // Do not suppress the throwing behavior. - this.emit('error', err); - } -} - -/** - * Wraps a `WebSocket` in a duplex stream. - * - * @param {WebSocket} ws The `WebSocket` to wrap - * @param {Object} [options] The options for the `Duplex` constructor - * @return {Duplex} The duplex stream - * @public - */ -function createWebSocketStream(ws, options) { - let terminateOnDestroy = true; - - const duplex = new Duplex({ - ...options, - autoDestroy: false, - emitClose: false, - objectMode: false, - writableObjectMode: false - }); - - ws.on('message', function message(msg, isBinary) { - const data = - !isBinary && duplex._readableState.objectMode ? msg.toString() : msg; - - if (!duplex.push(data)) ws.pause(); - }); - - ws.once('error', function error(err) { - if (duplex.destroyed) return; - - // Prevent `ws.terminate()` from being called by `duplex._destroy()`. - // - // - If the `'error'` event is emitted before the `'open'` event, then - // `ws.terminate()` is a noop as no socket is assigned. - // - Otherwise, the error is re-emitted by the listener of the `'error'` - // event of the `Receiver` object. The listener already closes the - // connection by calling `ws.close()`. This allows a close frame to be - // sent to the other peer. If `ws.terminate()` is called right after this, - // then the close frame might not be sent. - terminateOnDestroy = false; - duplex.destroy(err); - }); - - ws.once('close', function close() { - if (duplex.destroyed) return; - - duplex.push(null); - }); - - duplex._destroy = function (err, callback) { - if (ws.readyState === ws.CLOSED) { - callback(err); - process.nextTick(emitClose, duplex); - return; - } - - let called = false; - - ws.once('error', function error(err) { - called = true; - callback(err); - }); - - ws.once('close', function close() { - if (!called) callback(err); - process.nextTick(emitClose, duplex); - }); - - if (terminateOnDestroy) ws.terminate(); - }; - - duplex._final = function (callback) { - if (ws.readyState === ws.CONNECTING) { - ws.once('open', function open() { - duplex._final(callback); - }); - return; - } - - // If the value of the `_socket` property is `null` it means that `ws` is a - // client websocket and the handshake failed. In fact, when this happens, a - // socket is never assigned to the websocket. Wait for the `'error'` event - // that will be emitted by the websocket. - if (ws._socket === null) return; - - if (ws._socket._writableState.finished) { - callback(); - if (duplex._readableState.endEmitted) duplex.destroy(); - } else { - ws._socket.once('finish', function finish() { - // `duplex` is not destroyed here because the `'end'` event will be - // emitted on `duplex` after this `'finish'` event. The EOF signaling - // `null` chunk is, in fact, pushed when the websocket emits `'close'`. - callback(); - }); - ws.close(); - } - }; - - duplex._read = function () { - if (ws.isPaused) ws.resume(); - }; - - duplex._write = function (chunk, encoding, callback) { - if (ws.readyState === ws.CONNECTING) { - ws.once('open', function open() { - duplex._write(chunk, encoding, callback); - }); - return; - } - - ws.send(chunk, callback); - }; - - duplex.on('end', duplexOnEnd); - duplex.on('error', duplexOnError); - return duplex; -} - -module.exports = createWebSocketStream; diff --git a/comproxy/node_modules/ws/lib/subprotocol.js b/comproxy/node_modules/ws/lib/subprotocol.js deleted file mode 100644 index d4381e8..0000000 --- a/comproxy/node_modules/ws/lib/subprotocol.js +++ /dev/null @@ -1,62 +0,0 @@ -'use strict'; - -const { tokenChars } = require('./validation'); - -/** - * Parses the `Sec-WebSocket-Protocol` header into a set of subprotocol names. - * - * @param {String} header The field value of the header - * @return {Set} The subprotocol names - * @public - */ -function parse(header) { - const protocols = new Set(); - let start = -1; - let end = -1; - let i = 0; - - for (i; i < header.length; i++) { - const code = header.charCodeAt(i); - - if (end === -1 && tokenChars[code] === 1) { - if (start === -1) start = i; - } else if ( - i !== 0 && - (code === 0x20 /* ' ' */ || code === 0x09) /* '\t' */ - ) { - if (end === -1 && start !== -1) end = i; - } else if (code === 0x2c /* ',' */) { - if (start === -1) { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - - if (end === -1) end = i; - - const protocol = header.slice(start, end); - - if (protocols.has(protocol)) { - throw new SyntaxError(`The "${protocol}" subprotocol is duplicated`); - } - - protocols.add(protocol); - start = end = -1; - } else { - throw new SyntaxError(`Unexpected character at index ${i}`); - } - } - - if (start === -1 || end !== -1) { - throw new SyntaxError('Unexpected end of input'); - } - - const protocol = header.slice(start, i); - - if (protocols.has(protocol)) { - throw new SyntaxError(`The "${protocol}" subprotocol is duplicated`); - } - - protocols.add(protocol); - return protocols; -} - -module.exports = { parse }; diff --git a/comproxy/node_modules/ws/lib/validation.js b/comproxy/node_modules/ws/lib/validation.js deleted file mode 100644 index 44fc202..0000000 --- a/comproxy/node_modules/ws/lib/validation.js +++ /dev/null @@ -1,125 +0,0 @@ -'use strict'; - -// -// Allowed token characters: -// -// '!', '#', '$', '%', '&', ''', '*', '+', '-', -// '.', 0-9, A-Z, '^', '_', '`', a-z, '|', '~' -// -// tokenChars[32] === 0 // ' ' -// tokenChars[33] === 1 // '!' -// tokenChars[34] === 0 // '"' -// ... -// -// prettier-ignore -const tokenChars = [ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15 - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31 - 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, // 32 - 47 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63 - 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, // 80 - 95 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0 // 112 - 127 -]; - -/** - * Checks if a status code is allowed in a close frame. - * - * @param {Number} code The status code - * @return {Boolean} `true` if the status code is valid, else `false` - * @public - */ -function isValidStatusCode(code) { - return ( - (code >= 1000 && - code <= 1014 && - code !== 1004 && - code !== 1005 && - code !== 1006) || - (code >= 3000 && code <= 4999) - ); -} - -/** - * Checks if a given buffer contains only correct UTF-8. - * Ported from https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c by - * Markus Kuhn. - * - * @param {Buffer} buf The buffer to check - * @return {Boolean} `true` if `buf` contains only correct UTF-8, else `false` - * @public - */ -function _isValidUTF8(buf) { - const len = buf.length; - let i = 0; - - while (i < len) { - if ((buf[i] & 0x80) === 0) { - // 0xxxxxxx - i++; - } else if ((buf[i] & 0xe0) === 0xc0) { - // 110xxxxx 10xxxxxx - if ( - i + 1 === len || - (buf[i + 1] & 0xc0) !== 0x80 || - (buf[i] & 0xfe) === 0xc0 // Overlong - ) { - return false; - } - - i += 2; - } else if ((buf[i] & 0xf0) === 0xe0) { - // 1110xxxx 10xxxxxx 10xxxxxx - if ( - i + 2 >= len || - (buf[i + 1] & 0xc0) !== 0x80 || - (buf[i + 2] & 0xc0) !== 0x80 || - (buf[i] === 0xe0 && (buf[i + 1] & 0xe0) === 0x80) || // Overlong - (buf[i] === 0xed && (buf[i + 1] & 0xe0) === 0xa0) // Surrogate (U+D800 - U+DFFF) - ) { - return false; - } - - i += 3; - } else if ((buf[i] & 0xf8) === 0xf0) { - // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - if ( - i + 3 >= len || - (buf[i + 1] & 0xc0) !== 0x80 || - (buf[i + 2] & 0xc0) !== 0x80 || - (buf[i + 3] & 0xc0) !== 0x80 || - (buf[i] === 0xf0 && (buf[i + 1] & 0xf0) === 0x80) || // Overlong - (buf[i] === 0xf4 && buf[i + 1] > 0x8f) || - buf[i] > 0xf4 // > U+10FFFF - ) { - return false; - } - - i += 4; - } else { - return false; - } - } - - return true; -} - -module.exports = { - isValidStatusCode, - isValidUTF8: _isValidUTF8, - tokenChars -}; - -/* istanbul ignore else */ -if (!process.env.WS_NO_UTF_8_VALIDATE) { - try { - const isValidUTF8 = require('utf-8-validate'); - - module.exports.isValidUTF8 = function (buf) { - return buf.length < 150 ? _isValidUTF8(buf) : isValidUTF8(buf); - }; - } catch (e) { - // Continue regardless of the error. - } -} diff --git a/comproxy/node_modules/ws/lib/websocket-server.js b/comproxy/node_modules/ws/lib/websocket-server.js deleted file mode 100644 index bac30eb..0000000 --- a/comproxy/node_modules/ws/lib/websocket-server.js +++ /dev/null @@ -1,535 +0,0 @@ -/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^net|tls|https$" }] */ - -'use strict'; - -const EventEmitter = require('events'); -const http = require('http'); -const https = require('https'); -const net = require('net'); -const tls = require('tls'); -const { createHash } = require('crypto'); - -const extension = require('./extension'); -const PerMessageDeflate = require('./permessage-deflate'); -const subprotocol = require('./subprotocol'); -const WebSocket = require('./websocket'); -const { GUID, kWebSocket } = require('./constants'); - -const keyRegex = /^[+/0-9A-Za-z]{22}==$/; - -const RUNNING = 0; -const CLOSING = 1; -const CLOSED = 2; - -/** - * Class representing a WebSocket server. - * - * @extends EventEmitter - */ -class WebSocketServer extends EventEmitter { - /** - * Create a `WebSocketServer` instance. - * - * @param {Object} options Configuration options - * @param {Number} [options.backlog=511] The maximum length of the queue of - * pending connections - * @param {Boolean} [options.clientTracking=true] Specifies whether or not to - * track clients - * @param {Function} [options.handleProtocols] A hook to handle protocols - * @param {String} [options.host] The hostname where to bind the server - * @param {Number} [options.maxPayload=104857600] The maximum allowed message - * size - * @param {Boolean} [options.noServer=false] Enable no server mode - * @param {String} [options.path] Accept only connections matching this path - * @param {(Boolean|Object)} [options.perMessageDeflate=false] Enable/disable - * permessage-deflate - * @param {Number} [options.port] The port where to bind the server - * @param {(http.Server|https.Server)} [options.server] A pre-created HTTP/S - * server to use - * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or - * not to skip UTF-8 validation for text and close messages - * @param {Function} [options.verifyClient] A hook to reject connections - * @param {Function} [options.WebSocket=WebSocket] Specifies the `WebSocket` - * class to use. It must be the `WebSocket` class or class that extends it - * @param {Function} [callback] A listener for the `listening` event - */ - constructor(options, callback) { - super(); - - options = { - maxPayload: 100 * 1024 * 1024, - skipUTF8Validation: false, - perMessageDeflate: false, - handleProtocols: null, - clientTracking: true, - verifyClient: null, - noServer: false, - backlog: null, // use default (511 as implemented in net.js) - server: null, - host: null, - path: null, - port: null, - WebSocket, - ...options - }; - - if ( - (options.port == null && !options.server && !options.noServer) || - (options.port != null && (options.server || options.noServer)) || - (options.server && options.noServer) - ) { - throw new TypeError( - 'One and only one of the "port", "server", or "noServer" options ' + - 'must be specified' - ); - } - - if (options.port != null) { - this._server = http.createServer((req, res) => { - const body = http.STATUS_CODES[426]; - - res.writeHead(426, { - 'Content-Length': body.length, - 'Content-Type': 'text/plain' - }); - res.end(body); - }); - this._server.listen( - options.port, - options.host, - options.backlog, - callback - ); - } else if (options.server) { - this._server = options.server; - } - - if (this._server) { - const emitConnection = this.emit.bind(this, 'connection'); - - this._removeListeners = addListeners(this._server, { - listening: this.emit.bind(this, 'listening'), - error: this.emit.bind(this, 'error'), - upgrade: (req, socket, head) => { - this.handleUpgrade(req, socket, head, emitConnection); - } - }); - } - - if (options.perMessageDeflate === true) options.perMessageDeflate = {}; - if (options.clientTracking) { - this.clients = new Set(); - this._shouldEmitClose = false; - } - - this.options = options; - this._state = RUNNING; - } - - /** - * Returns the bound address, the address family name, and port of the server - * as reported by the operating system if listening on an IP socket. - * If the server is listening on a pipe or UNIX domain socket, the name is - * returned as a string. - * - * @return {(Object|String|null)} The address of the server - * @public - */ - address() { - if (this.options.noServer) { - throw new Error('The server is operating in "noServer" mode'); - } - - if (!this._server) return null; - return this._server.address(); - } - - /** - * Stop the server from accepting new connections and emit the `'close'` event - * when all existing connections are closed. - * - * @param {Function} [cb] A one-time listener for the `'close'` event - * @public - */ - close(cb) { - if (this._state === CLOSED) { - if (cb) { - this.once('close', () => { - cb(new Error('The server is not running')); - }); - } - - process.nextTick(emitClose, this); - return; - } - - if (cb) this.once('close', cb); - - if (this._state === CLOSING) return; - this._state = CLOSING; - - if (this.options.noServer || this.options.server) { - if (this._server) { - this._removeListeners(); - this._removeListeners = this._server = null; - } - - if (this.clients) { - if (!this.clients.size) { - process.nextTick(emitClose, this); - } else { - this._shouldEmitClose = true; - } - } else { - process.nextTick(emitClose, this); - } - } else { - const server = this._server; - - this._removeListeners(); - this._removeListeners = this._server = null; - - // - // The HTTP/S server was created internally. Close it, and rely on its - // `'close'` event. - // - server.close(() => { - emitClose(this); - }); - } - } - - /** - * See if a given request should be handled by this server instance. - * - * @param {http.IncomingMessage} req Request object to inspect - * @return {Boolean} `true` if the request is valid, else `false` - * @public - */ - shouldHandle(req) { - if (this.options.path) { - const index = req.url.indexOf('?'); - const pathname = index !== -1 ? req.url.slice(0, index) : req.url; - - if (pathname !== this.options.path) return false; - } - - return true; - } - - /** - * Handle a HTTP Upgrade request. - * - * @param {http.IncomingMessage} req The request object - * @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 {Function} cb Callback - * @public - */ - handleUpgrade(req, socket, head, cb) { - socket.on('error', socketOnError); - - const key = req.headers['sec-websocket-key']; - const version = +req.headers['sec-websocket-version']; - - if (req.method !== 'GET') { - const message = 'Invalid HTTP method'; - abortHandshakeOrEmitwsClientError(this, req, socket, 405, message); - return; - } - - if (req.headers.upgrade.toLowerCase() !== 'websocket') { - const message = 'Invalid Upgrade header'; - abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); - return; - } - - if (!key || !keyRegex.test(key)) { - const message = 'Missing or invalid Sec-WebSocket-Key header'; - abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); - return; - } - - if (version !== 8 && version !== 13) { - const message = 'Missing or invalid Sec-WebSocket-Version header'; - abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); - return; - } - - if (!this.shouldHandle(req)) { - abortHandshake(socket, 400); - return; - } - - const secWebSocketProtocol = req.headers['sec-websocket-protocol']; - let protocols = new Set(); - - if (secWebSocketProtocol !== undefined) { - try { - protocols = subprotocol.parse(secWebSocketProtocol); - } catch (err) { - const message = 'Invalid Sec-WebSocket-Protocol header'; - abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); - return; - } - } - - const secWebSocketExtensions = req.headers['sec-websocket-extensions']; - const extensions = {}; - - if ( - this.options.perMessageDeflate && - secWebSocketExtensions !== undefined - ) { - const perMessageDeflate = new PerMessageDeflate( - this.options.perMessageDeflate, - true, - this.options.maxPayload - ); - - try { - const offers = extension.parse(secWebSocketExtensions); - - if (offers[PerMessageDeflate.extensionName]) { - perMessageDeflate.accept(offers[PerMessageDeflate.extensionName]); - extensions[PerMessageDeflate.extensionName] = perMessageDeflate; - } - } catch (err) { - const message = - 'Invalid or unacceptable Sec-WebSocket-Extensions header'; - abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); - return; - } - } - - // - // Optionally call external client verification handler. - // - if (this.options.verifyClient) { - const info = { - origin: - req.headers[`${version === 8 ? 'sec-websocket-origin' : 'origin'}`], - secure: !!(req.socket.authorized || req.socket.encrypted), - req - }; - - if (this.options.verifyClient.length === 2) { - this.options.verifyClient(info, (verified, code, message, headers) => { - if (!verified) { - return abortHandshake(socket, code || 401, message, headers); - } - - this.completeUpgrade( - extensions, - key, - protocols, - req, - socket, - head, - cb - ); - }); - return; - } - - if (!this.options.verifyClient(info)) return abortHandshake(socket, 401); - } - - this.completeUpgrade(extensions, key, protocols, req, socket, head, cb); - } - - /** - * Upgrade the connection to WebSocket. - * - * @param {Object} extensions The accepted extensions - * @param {String} key The value of the `Sec-WebSocket-Key` header - * @param {Set} protocols The subprotocols - * @param {http.IncomingMessage} req The request object - * @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 {Function} cb Callback - * @throws {Error} If called more than once with the same socket - * @private - */ - completeUpgrade(extensions, key, protocols, req, socket, head, cb) { - // - // Destroy the socket if the client has already sent a FIN packet. - // - if (!socket.readable || !socket.writable) return socket.destroy(); - - if (socket[kWebSocket]) { - throw new Error( - 'server.handleUpgrade() was called more than once with the same ' + - 'socket, possibly due to a misconfiguration' - ); - } - - if (this._state > RUNNING) return abortHandshake(socket, 503); - - const digest = createHash('sha1') - .update(key + GUID) - .digest('base64'); - - const headers = [ - 'HTTP/1.1 101 Switching Protocols', - 'Upgrade: websocket', - 'Connection: Upgrade', - `Sec-WebSocket-Accept: ${digest}` - ]; - - const ws = new this.options.WebSocket(null); - - if (protocols.size) { - // - // Optionally call external protocol selection handler. - // - const protocol = this.options.handleProtocols - ? this.options.handleProtocols(protocols, req) - : protocols.values().next().value; - - if (protocol) { - headers.push(`Sec-WebSocket-Protocol: ${protocol}`); - ws._protocol = protocol; - } - } - - if (extensions[PerMessageDeflate.extensionName]) { - const params = extensions[PerMessageDeflate.extensionName].params; - const value = extension.format({ - [PerMessageDeflate.extensionName]: [params] - }); - headers.push(`Sec-WebSocket-Extensions: ${value}`); - ws._extensions = extensions; - } - - // - // Allow external modification/inspection of handshake headers. - // - this.emit('headers', headers, req); - - socket.write(headers.concat('\r\n').join('\r\n')); - socket.removeListener('error', socketOnError); - - ws.setSocket(socket, head, { - maxPayload: this.options.maxPayload, - skipUTF8Validation: this.options.skipUTF8Validation - }); - - if (this.clients) { - this.clients.add(ws); - ws.on('close', () => { - this.clients.delete(ws); - - if (this._shouldEmitClose && !this.clients.size) { - process.nextTick(emitClose, this); - } - }); - } - - cb(ws, req); - } -} - -module.exports = WebSocketServer; - -/** - * Add event listeners on an `EventEmitter` using a map of <event, listener> - * pairs. - * - * @param {EventEmitter} server The event emitter - * @param {Object.<String, Function>} map The listeners to add - * @return {Function} A function that will remove the added listeners when - * called - * @private - */ -function addListeners(server, map) { - for (const event of Object.keys(map)) server.on(event, map[event]); - - return function removeListeners() { - for (const event of Object.keys(map)) { - server.removeListener(event, map[event]); - } - }; -} - -/** - * Emit a `'close'` event on an `EventEmitter`. - * - * @param {EventEmitter} server The event emitter - * @private - */ -function emitClose(server) { - server._state = CLOSED; - server.emit('close'); -} - -/** - * Handle socket errors. - * - * @private - */ -function socketOnError() { - this.destroy(); -} - -/** - * Close the connection when preconditions are not fulfilled. - * - * @param {(net.Socket|tls.Socket)} socket The socket of the upgrade request - * @param {Number} code The HTTP response status code - * @param {String} [message] The HTTP response body - * @param {Object} [headers] Additional HTTP response headers - * @private - */ -function abortHandshake(socket, code, message, headers) { - // - // The socket is writable unless the user destroyed or ended it before calling - // `server.handleUpgrade()` or in the `verifyClient` function, which is a user - // error. Handling this does not make much sense as the worst that can happen - // is that some of the data written by the user might be discarded due to the - // call to `socket.end()` below, which triggers an `'error'` event that in - // turn causes the socket to be destroyed. - // - message = message || http.STATUS_CODES[code]; - headers = { - Connection: 'close', - 'Content-Type': 'text/html', - 'Content-Length': Buffer.byteLength(message), - ...headers - }; - - socket.once('finish', socket.destroy); - - socket.end( - `HTTP/1.1 ${code} ${http.STATUS_CODES[code]}\r\n` + - Object.keys(headers) - .map((h) => `${h}: ${headers[h]}`) - .join('\r\n') + - '\r\n\r\n' + - message - ); -} - -/** - * Emit a `'wsClientError'` event on a `WebSocketServer` if there is at least - * one listener for it, otherwise call `abortHandshake()`. - * - * @param {WebSocketServer} server The WebSocket server - * @param {http.IncomingMessage} req The request object - * @param {(net.Socket|tls.Socket)} socket The socket of the upgrade request - * @param {Number} code The HTTP response status code - * @param {String} message The HTTP response body - * @private - */ -function abortHandshakeOrEmitwsClientError(server, req, socket, code, message) { - if (server.listenerCount('wsClientError')) { - const err = new Error(message); - Error.captureStackTrace(err, abortHandshakeOrEmitwsClientError); - - server.emit('wsClientError', err, socket, req); - } else { - abortHandshake(socket, code, message); - } -} diff --git a/comproxy/node_modules/ws/lib/websocket.js b/comproxy/node_modules/ws/lib/websocket.js deleted file mode 100644 index 4391c73..0000000 --- a/comproxy/node_modules/ws/lib/websocket.js +++ /dev/null @@ -1,1305 +0,0 @@ -/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^Readable$" }] */ - -'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(); - } -} diff --git a/comproxy/node_modules/ws/package.json b/comproxy/node_modules/ws/package.json deleted file mode 100644 index 24ffdc5..0000000 --- a/comproxy/node_modules/ws/package.json +++ /dev/null @@ -1,64 +0,0 @@ -{ - "name": "ws", - "version": "8.11.0", - "description": "Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js", - "keywords": [ - "HyBi", - "Push", - "RFC-6455", - "WebSocket", - "WebSockets", - "real-time" - ], - "homepage": "https://github.com/websockets/ws", - "bugs": "https://github.com/websockets/ws/issues", - "repository": "websockets/ws", - "author": "Einar Otto Stangvik <einaros@gmail.com> (http://2x.io)", - "license": "MIT", - "main": "index.js", - "exports": { - ".": { - "import": "./wrapper.mjs", - "require": "./index.js" - }, - "./package.json": "./package.json" - }, - "browser": "browser.js", - "engines": { - "node": ">=10.0.0" - }, - "files": [ - "browser.js", - "index.js", - "lib/*.js", - "wrapper.mjs" - ], - "scripts": { - "test": "nyc --reporter=lcov --reporter=text mocha --throw-deprecation test/*.test.js", - "integration": "mocha --throw-deprecation test/*.integration.js", - "lint": "eslint --ignore-path .gitignore . && prettier --check --ignore-path .gitignore \"**/*.{json,md,yaml,yml}\"" - }, - "peerDependencies": { - "bufferutil": "^4.0.1", - "utf-8-validate": "^5.0.2" - }, - "peerDependenciesMeta": { - "bufferutil": { - "optional": true - }, - "utf-8-validate": { - "optional": true - } - }, - "devDependencies": { - "benchmark": "^2.1.4", - "bufferutil": "^4.0.1", - "eslint": "^8.0.0", - "eslint-config-prettier": "^8.1.0", - "eslint-plugin-prettier": "^4.0.0", - "mocha": "^8.4.0", - "nyc": "^15.0.0", - "prettier": "^2.0.5", - "utf-8-validate": "^5.0.2" - } -} diff --git a/comproxy/node_modules/ws/wrapper.mjs b/comproxy/node_modules/ws/wrapper.mjs deleted file mode 100644 index 7245ad1..0000000 --- a/comproxy/node_modules/ws/wrapper.mjs +++ /dev/null @@ -1,8 +0,0 @@ -import createWebSocketStream from './lib/stream.js'; -import Receiver from './lib/receiver.js'; -import Sender from './lib/sender.js'; -import WebSocket from './lib/websocket.js'; -import WebSocketServer from './lib/websocket-server.js'; - -export { createWebSocketStream, Receiver, Sender, WebSocket, WebSocketServer }; -export default WebSocket; |