@superhero/websocket

<!doctype html> <html lang="en"> <head> <title>Code coverage report for client.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="prettify.css" /> <link rel="stylesheet" href="base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="index.html">All files</a> client.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 84.34% Statements 70/83 </div> <div class='fl pad1y space-right2'> 71.43% Branches 15/21 </div> <div class='fl pad1y space-right2'> 94.74% Functions 18/19 </div> <div class='fl pad1y space-right2'> 84.81% Lines 67/79 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet"><a name='L1'></a><a 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        4x 4x          </td><td class="text"><pre class="prettyprint lang-js">const encoding = require('encoding'), crypto = require('crypto'), Debug = require('@superhero/debug'), Socket = require('net').Socket, Events = require('events'), version = require('./package.json').version, Codec = require('./codec')   module.exports = class { constructor(options) { this.config = Object.assign( { debug : true, reconnect : false, onClose : false }, options)   const debug = new Debug({ debug:this.config.debug, prefix:'ws client:' })   this.log = debug.log.bind(debug) this.events = new Events() this.socket = new Socket()   for(let event of ['close','connect','data','drain','end','lookup','ready']) this.socket.on(event, () => this.log(event))   for(let event of ['error']) this.socket.on(event, (...a) => this.log(event, ...a)) }   get key() { return this._key ? this._key : this._key = crypto.randomBytes(15).toString('base64') }   get chunks() { return this._chunks ? this._chunks : this._chunks = [] }   connect(port = 80, host = '127.0.0.1', headers) { const header = this.composeHeader(headers)   return new Promise((fulfill, reject) => this.socket.connect(port, host, () => { this.socket.write(header, (error) => { Iif(error) { this.log('error sending handshake', error) reject(error) } else { this.log('handshake:', 'sent') this.socket.once('data', (data) => fulfill( this.handshake(data) )) } }) })) }   handshake(data) { return new Promise((fulfill) => { this.log('handshake:', 'received')   const headers = data.toString().split('\r\n'), foundAcceptHeader = headers.some((line) => { if(!line.toLowerCase().startsWith('sec-websocket-accept')) return false   const signature = (line.split(':')[1] || '').trim()   Eif(signature === Codec.signature(this.key)) { this.log('handshake:', 'verified') this.socket.on('data', this.onData.bind(this)) fulfill() } else { this.log('handshake:', 'invalid:', 'signature:', signature) const error = new Error('invalid websocket handshake') error.code = 'ERR_WEBSOCKET_HANDSHAKE_INVALID' throw error }   return true })   Iif(!foundAcceptHeader) { this.log('handshake:', 'missing "Sec-WebSocket-Accept" header') const error = new Error('missing "Sec-WebSocket-Accept" header') error.code = 'ERR_WEBSOCKET_HANDSHAKE_MISSING_SIGNATURE' throw error } }) }   composeHeader(headers = {}) { headers = Object.assign( { 'User-Agent' : `Superhero Websocket Client/${version}` }, headers, { 'Sec-WebSocket-Key' : this.key })   let header = ''   for(const key in headers) header += `${key} : ${headers[key]}\r\n`   return header + '\r\n' }   onData(buffer) { this.log('received message') buffer = Buffer.concat([this.buffer, buffer].filter(_ => _)) for(const decoded of Codec.decode(buffer)) { this.buffer = decoded.buffer   try { this.chunks.push(decoded.msg)   const msg = this.chunks.join(), dto = JSON.parse(msg)   this.chunks.length = 0 this.log('received message:', dto) this.events.emit(dto.event, dto.data) } catch(error) { this.log(error) this.log('a message could not be parsed:', this.chunks) } } }   emit(event, data) { if(typeof event !== 'string') throw new TypeError('event must be a string')   const dto = JSON.stringify({ event, data }), masked = true, encoded = Codec.encode(dto, masked)   return new Promise((fulfill, reject) => this.socket.write(encoded, (error) => { Iif(error) { this.log('error emitting:', event, data, error) reject(error) } else { this.log('emitted:', event, data) fulfill() } })) } }  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Thu May 10 2018 14:50:41 GMT+0200 (CEST) </div> </div> <script src="prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="sorter.js"></script> <script src="block-navigation.js"></script> </body> </html>