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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | 1x 1x 1x 14x 14x 14x 14x 14x 14x 14x 14x 14x 14x 24x 24x 24x 24x 14x 7x 7x 10x 10x 10x 10x 2x 2x 14x 14x 14x 7x 14x 14x 14x 14x 14x 14x 2x 24x 24x 24x 24x 24x 22x 22x 22x 22x 22x 22x 22x 22x 22x 2x | import * as HTTP from 'http'; import * as HTTPS from 'https'; import { Socket } from 'net'; import { WebSocket } from './client'; import { ServerConfigs } from './index'; import { native, noop, setupNative, APP_PING_CODE, PERMESSAGE_DEFLATE, SLIDING_DEFLATE_WINDOW, DEFAULT_PAYLOAD_LIMIT } from './shared'; export class WebSocketServer { public upgradeCb: (ws: WebSocket) => void; public upgradeReq: HTTP.IncomingMessage; public registeredEvents: any = { close: noop, error: noop, connection: noop, }; private httpServer: HTTP.Server | HTTPS.Server; private serverGroup: any; private onUpgradeRequest: (req: HTTP.IncomingMessage, socket: Socket) => void; constructor(private options: ServerConfigs, cb: () => void = noop) { let nativeOptions: number = 0; Iif (this.options.perMessageDeflate) { // tslint:disable-next-line nativeOptions |= PERMESSAGE_DEFLATE; if ((this.options.perMessageDeflate as { serverNoContextTakeover: boolean }).serverNoContextTakeover === false) { // tslint:disable-next-line nativeOptions |= SLIDING_DEFLATE_WINDOW; } } this.serverGroup = native.server.group.create(nativeOptions, this.options.maxPayload || DEFAULT_PAYLOAD_LIMIT); setupNative(this.serverGroup, 'server', this); Iif (this.options.noServer) { return; } Iif (this.options.path && this.options.path[0] !== '/') { this.options.path = `/${this.options.path}`; } this.httpServer = this.options.server || HTTP.createServer((_: any, res: HTTP.ServerResponse): void => { const body: string = HTTP.STATUS_CODES[426]; res.writeHead(426, { 'Content-Length': body.length, 'Content-Type': 'text/plain' }); return res.end(body); }); this.httpServer.on('upgrade', this.onUpgradeRequest = ((req: HTTP.IncomingMessage, socket: Socket): void => { socket.on('error', (): void => { // this is how `ws` handles socket error socket.destroy(); }); Iif (this.options.path && this.options.path !== req.url.split('?')[0].split('#')[0]) { return this.abortConnection(socket, 400, 'URL not supported'); } Iif (this.options.verifyClient) { const info: any = { origin: req.headers.origin, secure: !!((req.connection as any).authorized || (req.connection as any).encrypted), req }; this.options.verifyClient(info, (verified?: boolean, code?: number, message?: string): void => { if (!verified) { return this.abortConnection(socket, code || 401, message || 'Client verification failed'); } this.upgradeConnection(req, socket); }); } else { this.upgradeConnection(req, socket); } })); if (this.options.port && !this.options.server) { this.httpServer.on('error', (err: Error): void => { // listen on http server error only if server has been // created by cws, in case if server passed from the // user than user is responsible for listening for 'error' event // on passed http server this.registeredEvents['error'](err); }); this.httpServer.listen(this.options.port, this.options.host, cb); } } get clients(): { length: number, forEach: (cb: (ws: WebSocket) => void) => void } { return { length: this.serverGroup ? native.server.group.getSize(this.serverGroup) : 0, forEach: (cb: (ws: WebSocket) => void): void => { if (this.serverGroup) { native.server.group.forEach(this.serverGroup, cb); } } }; } public on(event: 'error', listener: (err: Error) => void): void; public on(event: 'connection', listener: (socket: WebSocket, req: HTTP.IncomingMessage) => void): void; public on(event: 'connection', listener: (socket: WebSocket) => void): void; public on(event: string, listener: (...args: any[]) => void): void { Iif (this.registeredEvents[event] === undefined) { console.warn(`cWS does not support '${event}' event`); return; } Iif (typeof listener !== 'function') { throw new Error(`Listener for '${event}' event must be a function`); } Iif (this.registeredEvents[event] !== noop) { console.warn(`cWS does not support multiple listeners for the same event. Old listener for '${event}' event will be overwritten`); } this.registeredEvents[event] = listener; } public emit(event: string, ...args: any[]): void { if (this.registeredEvents[event]) { this.registeredEvents[event](...args); } } public broadcast(message: string | Buffer, options?: { binary: boolean }): void { Eif (this.serverGroup) { native.server.group.broadcast(this.serverGroup, message, options && options.binary || false); } } public startAutoPing(interval: number, appLevel?: boolean): void { if (this.serverGroup) { native.server.group.startAutoPing(this.serverGroup, interval, appLevel ? APP_PING_CODE : null); } } public handleUpgrade(req: HTTP.IncomingMessage, socket: Socket, upgradeHead: any, cb: (ws: WebSocket) => void): void { // `ws` compatibility if (this.options.noServer) { this.upgradeConnection(req, socket, cb); } } public close(cb: () => void = noop): void { Eif (this.httpServer) { this.httpServer.removeListener('upgrade', this.onUpgradeRequest); if (!this.options.server) { this.httpServer.close(); } } Eif (this.serverGroup) { native.server.group.close(this.serverGroup); this.serverGroup = null; } setTimeout((): void => { this.registeredEvents['close'](); cb(); }, 0); } private abortConnection(socket: Socket, code: number, message: string): void { return socket.end(`HTTP/1.1 ${code} ${message}\r\n\r\n`); } private upgradeConnection(req: HTTP.IncomingMessage, socket: Socket, cb?: (ws: WebSocket) => void): void { const secKey: any = req.headers['sec-websocket-key']; Iif ((socket as any)._isNative) { if (this.serverGroup) { this.upgradeCb = cb; this.upgradeReq = req; native.upgrade(this.serverGroup, (socket as any).external, secKey, req.headers['sec-websocket-extensions'], req.headers['sec-websocket-protocol']); } } else { const socketAsAny: any = socket as any; const socketHandle: any = socketAsAny.ssl ? socketAsAny._parent._handle : socketAsAny._handle; if (socketHandle && secKey && secKey.length === 24) { const sslState: any = socketAsAny.ssl ? native.getSSLContext(socketAsAny.ssl) : null; socket.setNoDelay(this.options.noDelay === false ? false : true); const ticket: any = native.transfer(socketHandle.fd === -1 ? socketHandle : socketHandle.fd, sslState); socket.on('close', (): void => { Eif (this.serverGroup) { this.upgradeCb = cb; this.upgradeReq = req; native.upgrade(this.serverGroup, ticket, secKey, req.headers['sec-websocket-extensions'], req.headers['sec-websocket-protocol']); } }); socket.destroy(); } else { return this.abortConnection(socket, 400, 'Bad Request'); } } } } |