root / HServer / 00.Server / 00.Program / node_modules / uws / uws.js
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'use strict';
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const http = require('http');
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const EventEmitter = require('events');
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const EE_ERROR = 'Registering more than one listener to a WebSocket is not supported.';
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const DEFAULT_PAYLOAD_LIMIT = 16777216;
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function noop() {} |
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function abortConnection(socket, code, name) { |
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socket.end('HTTP/1.1 ' + code + ' ' + name + '\r\n\r\n'); |
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} |
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function emitConnection(ws) { |
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this.emit('connection', ws); |
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} |
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function onServerMessage(message, webSocket) { |
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webSocket.internalOnMessage(message); |
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} |
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const native = (() => {
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try {
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try {
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return process.binding('uws_builtin'); |
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} catch (e) {
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return require(`./uws_${process.platform}_${process.versions.modules}`); |
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}
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} catch (e) {
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const version = process.version.substring(1).split('.').map(function(n) {
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return parseInt(n);
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});
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const lessThanSixFour = version[0] < 6 || (version[0] === 6 && version[1] < 4);
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if (process.platform === 'win32' && lessThanSixFour) {
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throw new Error('µWebSockets requires Node.js 6.4.0 or greater on Windows.');
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} else {
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throw new Error('Compilation of µWebSockets has failed and there is no pre-compiled binary ' +
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'available for your system. Please install a supported C++11 compiler and reinstall the module \'uws\'.');
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}
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}
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})();
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native.setNoop(noop);
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var _upgradeReq = null;
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const clientGroup = native.client.group.create(0, DEFAULT_PAYLOAD_LIMIT);
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native.client.group.onConnection(clientGroup, (external) => {
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const webSocket = native.getUserData(external);
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webSocket.external = external;
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webSocket.internalOnOpen();
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});
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native.client.group.onMessage(clientGroup, (message, webSocket) => {
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webSocket.internalOnMessage(message);
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});
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native.client.group.onDisconnection(clientGroup, (external, code, message, webSocket) => {
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webSocket.external = null;
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process.nextTick(() => {
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webSocket.internalOnClose(code, message);
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});
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native.clearUserData(external);
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});
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native.client.group.onPing(clientGroup, (message, webSocket) => {
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webSocket.onping(message);
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});
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native.client.group.onPong(clientGroup, (message, webSocket) => {
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webSocket.onpong(message);
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});
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native.client.group.onError(clientGroup, (webSocket) => {
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process.nextTick(() => {
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webSocket.internalOnError({
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message: 'uWs client connection error',
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stack: 'uWs client connection error'
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});
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});
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});
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class WebSocket {
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constructor(external) {
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this.external = external;
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this.internalOnMessage = noop;
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this.internalOnClose = noop;
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this.onping = noop;
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this.onpong = noop;
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}
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get upgradeReq() {
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return _upgradeReq;
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}
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set onmessage(f) {
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if (f) {
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this.internalOnMessage = (message) => {
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f({data: message});
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};
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} else {
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this.internalOnMessage = noop;
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}
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}
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set onopen(f) {
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if (f) {
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this.internalOnOpen = f;
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} else {
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this.internalOnOpen = noop;
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}
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}
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set onclose(f) {
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if (f) {
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this.internalOnClose = (code, message) => {
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f({code: code, reason: message});
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};
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} else {
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this.internalOnClose = noop;
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}
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}
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set onerror(f) {
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if (f && this instanceof WebSocketClient) {
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this.internalOnError = f;
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} else {
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this.internalOnError = noop;
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}
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}
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emit(eventName, arg1, arg2) {
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if (eventName === 'message') {
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this.internalOnMessage(arg1);
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} else if (eventName === 'close') {
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this.internalOnClose(arg1, arg2);
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} else if (eventName === 'ping') {
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this.onping(arg1);
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} else if (eventName === 'pong') {
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this.onpong(arg1);
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}
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return this;
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}
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on(eventName, f) {
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if (eventName === 'message') {
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if (this.internalOnMessage !== noop) {
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throw Error(EE_ERROR);
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}
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this.internalOnMessage = f;
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} else if (eventName === 'close') {
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if (this.internalOnClose !== noop) {
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throw Error(EE_ERROR);
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}
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this.internalOnClose = f;
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} else if (eventName === 'ping') {
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if (this.onping !== noop) {
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throw Error(EE_ERROR);
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}
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this.onping = f;
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} else if (eventName === 'pong') {
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if (this.onpong !== noop) {
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throw Error(EE_ERROR);
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}
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this.onpong = f;
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} else if (eventName === 'open') {
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if (this.internalOnOpen !== noop) {
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throw Error(EE_ERROR);
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}
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this.internalOnOpen = f;
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} else if (eventName === 'error' && this instanceof WebSocketClient) {
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if (this.internalOnError !== noop) {
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throw Error(EE_ERROR);
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}
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this.internalOnError = f;
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}
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return this;
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}
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once(eventName, f) {
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if (eventName === 'message') {
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if (this.internalOnMessage !== noop) {
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throw Error(EE_ERROR);
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}
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this.internalOnMessage = (message) => {
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this.internalOnMessage = noop;
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f(message);
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};
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} else if (eventName === 'close') {
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if (this.internalOnClose !== noop) {
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throw Error(EE_ERROR);
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}
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this.internalOnClose = (code, message) => {
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this.internalOnClose = noop;
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f(code, message);
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};
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} else if (eventName === 'ping') {
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if (this.onping !== noop) {
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throw Error(EE_ERROR);
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}
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this.onping = () => {
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this.onping = noop;
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f();
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};
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} else if (eventName === 'pong') {
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if (this.onpong !== noop) {
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throw Error(EE_ERROR);
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}
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this.onpong = () => {
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this.onpong = noop;
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f();
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};
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}
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return this;
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}
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removeAllListeners(eventName) {
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if (!eventName || eventName === 'message') {
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this.internalOnMessage = noop;
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}
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if (!eventName || eventName === 'close') {
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this.internalOnClose = noop;
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}
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if (!eventName || eventName === 'ping') {
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this.onping = noop;
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}
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if (!eventName || eventName === 'pong') {
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this.onpong = noop;
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}
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return this;
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}
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removeListener(eventName, cb) {
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if (eventName === 'message' && this.internalOnMessage === cb) {
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this.internalOnMessage = noop;
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} else if (eventName === 'close' && this.internalOnClose === cb) {
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this.internalOnClose = noop;
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} else if (eventName === 'ping' && this.onping === cb) {
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this.onping = noop;
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} else if (eventName === 'pong' && this.onpong === cb) {
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this.onpong = noop;
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}
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return this;
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}
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get OPEN() {
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return WebSocketClient.OPEN;
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}
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get CLOSED() {
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return WebSocketClient.CLOSED;
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}
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get readyState() {
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return this.external ? WebSocketClient.OPEN : WebSocketClient.CLOSED;
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}
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get _socket() {
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const address = this.external ? native.getAddress(this.external) : new Array(3);
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return {
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remotePort: address[0],
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remoteAddress: address[1],
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remoteFamily: address[2]
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};
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}
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// from here down, functions are not common between client and server
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ping(message, options, dontFailWhenClosed) {
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if (this.external) { |
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native.server.send(this.external, message, WebSocketClient.OPCODE_PING); |
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} |
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} |
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terminate() {
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if (this.external) { |
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native.server.terminate(this.external); |
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this.external = null; |
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} |
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} |
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send(message, options, cb) {
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if (this.external) { |
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if (typeof options === 'function') { |
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cb = options; |
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options = null;
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} |
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const binary = options && options.binary || typeof message !== 'string'; |
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native.server.send(this.external, message, binary ? WebSocketClient.OPCODE_BINARY : WebSocketClient.OPCODE_TEXT, cb ? (() => { |
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process.nextTick(cb); |
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}) : undefined);
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} else if (cb) { |
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cb(new Error('not opened')); |
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} |
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} |
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close(code, data) {
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if (this.external) { |
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native.server.close(this.external, code, data); |
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this.external = null; |
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} |
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} |
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} |
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class WebSocketClient extends WebSocket { |
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constructor(uri) {
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super(null); |
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this.internalOnOpen = noop;
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this.internalOnError = noop;
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native.connect(clientGroup, uri, this); |
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} |
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ping(message, options, dontFailWhenClosed) {
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if (this.external) { |
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native.client.send(this.external, message, WebSocketClient.OPCODE_PING); |
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} |
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} |
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terminate() {
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if (this.external) { |
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native.client.terminate(this.external); |
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this.external = null; |
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} |
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} |
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send(message, options, cb) {
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if (this.external) { |
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if (typeof options === 'function') { |
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cb = options; |
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options = null;
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} |
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const binary = options && options.binary || typeof message !== 'string'; |
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native.client.send(this.external, message, binary ? WebSocketClient.OPCODE_BINARY : WebSocketClient.OPCODE_TEXT, cb ? (() => { |
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process.nextTick(cb); |
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}) : undefined);
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} else if (cb) { |
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cb(new Error('not opened')); |
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} |
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} |
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close(code, data) {
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if (this.external) { |
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native.client.close(this.external, code, data); |
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this.external = null; |
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} |
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} |
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} |
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class Server extends EventEmitter { |
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constructor(options, callback) {
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super();
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if (!options) {
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throw new TypeError('missing options'); |
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} |
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if (options.port === undefined && !options.server && !options.noServer) { |
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throw new TypeError('invalid options'); |
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} |
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var nativeOptions = WebSocketClient.PERMESSAGE_DEFLATE;
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if (options.perMessageDeflate !== undefined) { |
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if (options.perMessageDeflate === false) { |
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nativeOptions = 0;
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} |
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} |
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this.serverGroup = native.server.group.create(nativeOptions, options.maxPayload === undefined ? DEFAULT_PAYLOAD_LIMIT : options.maxPayload); |
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// can these be made private?
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this._upgradeCallback = noop;
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this._upgradeListener = null; |
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this._noDelay = options.noDelay === undefined ? true : options.noDelay; |
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this._lastUpgradeListener = true; |
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this._passedHttpServer = options.server;
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if (!options.noServer) {
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this.httpServer = options.server ? options.server : http.createServer((request, response) => {
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// todo: default HTTP response
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response.end(); |
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}); |
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if (options.path && (!options.path.length || options.path[0] !== '/')) { |
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options.path = '/' + options.path;
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} |
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this.httpServer.on('upgrade', this._upgradeListener = ((request, socket, head) => { |
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if (!options.path || options.path == request.url.split('?')[0].split('#')[0]) { |
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if (options.verifyClient) {
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const info = {
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origin: request.headers.origin,
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secure: request.connection.authorized !== undefined || request.connection.encrypted !== undefined, |
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req: request
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}; |
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if (options.verifyClient.length === 2) { |
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options.verifyClient(info, (result, code, name) => {
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if (result) {
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this.handleUpgrade(request, socket, head, emitConnection);
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} else {
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abortConnection(socket, code, name); |
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} |
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}); |
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} else {
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if (options.verifyClient(info)) {
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this.handleUpgrade(request, socket, head, emitConnection);
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} else {
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abortConnection(socket, 400, 'Client verification failed'); |
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} |
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} |
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} else {
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this.handleUpgrade(request, socket, head, emitConnection);
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} |
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} else {
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if (this._lastUpgradeListener) { |
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abortConnection(socket, 400, 'URL not supported'); |
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} |
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} |
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})); |
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this.httpServer.on('newListener', (eventName, listener) => { |
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if (eventName === 'upgrade') { |
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this._lastUpgradeListener = false; |
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} |
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}); |
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this.httpServer.on('error', (err) => { |
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this.emit('error', err); |
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}); |
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} |
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|
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native.server.group.onDisconnection(this.serverGroup, (external, code, message, webSocket) => { |
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webSocket.external = null;
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process.nextTick(() => {
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webSocket.internalOnClose(code, message); |
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}); |
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native.clearUserData(external);
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}); |
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native.server.group.onMessage(this.serverGroup, onServerMessage); |
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native.server.group.onPing(this.serverGroup, (message, webSocket) => { |
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webSocket.onping(message); |
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}); |
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native.server.group.onPong(this.serverGroup, (message, webSocket) => { |
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webSocket.onpong(message); |
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}); |
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|
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native.server.group.onConnection(this.serverGroup, (external) => { |
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const webSocket = new WebSocket(external);
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native.setUserData(external, webSocket);
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this._upgradeCallback(webSocket);
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_upgradeReq = null;
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}); |
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if (options.port !== undefined) { |
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if (options.host) {
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this.httpServer.listen(options.port, options.host, () => {
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this.emit('listening'); |
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callback && callback(); |
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}); |
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} else {
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this.httpServer.listen(options.port, () => {
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this.emit('listening'); |
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callback && callback(); |
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}); |
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} |
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} |
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} |
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|
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handleUpgrade(request, socket, upgradeHead, callback) {
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if (socket._isNative) {
|
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if (this.serverGroup) { |
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_upgradeReq = request; |
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this._upgradeCallback = callback ? callback : noop;
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native.upgrade(this.serverGroup, socket.external, secKey, request.headers['sec-websocket-extensions'], request.headers['sec-websocket-protocol']); |
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} |
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} else {
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const secKey = request.headers['sec-websocket-key'];
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const socketHandle = socket.ssl ? socket._parent._handle : socket._handle; |
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const sslState = socket.ssl ? socket.ssl._external : null;
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if (socketHandle && secKey && secKey.length == 24) { |
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socket.setNoDelay(this._noDelay);
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const ticket = native.transfer(socketHandle.fd === -1 ? socketHandle : socketHandle.fd, sslState); |
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socket.on('close', (error) => {
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if (this.serverGroup) { |
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_upgradeReq = request; |
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this._upgradeCallback = callback ? callback : noop;
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native.upgrade(this.serverGroup, ticket, secKey, request.headers['sec-websocket-extensions'], request.headers['sec-websocket-protocol']); |
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} |
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}); |
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} |
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socket.destroy(); |
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} |
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} |
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|
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broadcast(message, options) {
|
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if (this.serverGroup) { |
| 512 |
native.server.group.broadcast(this.serverGroup, message, options && options.binary || false); |
| 513 |
} |
| 514 |
} |
| 515 |
|
| 516 |
startAutoPing(interval, userMessage) {
|
| 517 |
if (this.serverGroup) { |
| 518 |
native.server.group.startAutoPing(this.serverGroup, interval, userMessage); |
| 519 |
} |
| 520 |
} |
| 521 |
|
| 522 |
close(cb) {
|
| 523 |
if (this._upgradeListener && this.httpServer) { |
| 524 |
this.httpServer.removeListener('upgrade', this._upgradeListener); |
| 525 |
|
| 526 |
if (!this._passedHttpServer) { |
| 527 |
this.httpServer.close();
|
| 528 |
} |
| 529 |
} |
| 530 |
|
| 531 |
if (this.serverGroup) { |
| 532 |
native.server.group.close(this.serverGroup); |
| 533 |
this.serverGroup = null; |
| 534 |
} |
| 535 |
|
| 536 |
if (typeof cb === 'function') { |
| 537 |
// compatibility hack, 15 seconds timeout
|
| 538 |
setTimeout(cb, 20000);
|
| 539 |
} |
| 540 |
} |
| 541 |
|
| 542 |
get clients() {
|
| 543 |
if (this.serverGroup) { |
| 544 |
return {
|
| 545 |
length: native.server.group.getSize(this.serverGroup), |
| 546 |
forEach: ((cb) => {native.server.group.forEach(this.serverGroup, cb)}) |
| 547 |
}; |
| 548 |
} |
| 549 |
} |
| 550 |
} |
| 551 |
|
| 552 |
WebSocketClient.PERMESSAGE_DEFLATE = 1;
|
| 553 |
WebSocketClient.SERVER_NO_CONTEXT_TAKEOVER = 2;
|
| 554 |
WebSocketClient.CLIENT_NO_CONTEXT_TAKEOVER = 4;
|
| 555 |
WebSocketClient.OPCODE_TEXT = 1;
|
| 556 |
WebSocketClient.OPCODE_BINARY = 2;
|
| 557 |
WebSocketClient.OPCODE_PING = 9;
|
| 558 |
WebSocketClient.OPEN = 1;
|
| 559 |
WebSocketClient.CLOSED = 0;
|
| 560 |
WebSocketClient.Server = Server; |
| 561 |
WebSocketClient.http = native.httpServer;
|
| 562 |
WebSocketClient.native = native; |
| 563 |
module.exports = WebSocketClient; |