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Current File : //proc/self/root/usr/local/lib/node_modules/socket.io/dist/index.js
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Namespace = exports.Socket = exports.Server = void 0;
const http = require("http");
const fs_1 = require("fs");
const zlib_1 = require("zlib");
const accepts = require("accepts");
const stream_1 = require("stream");
const path = require("path");
const engine = require("engine.io");
const client_1 = require("./client");
const events_1 = require("events");
const namespace_1 = require("./namespace");
Object.defineProperty(exports, "Namespace", { enumerable: true, get: function () { return namespace_1.Namespace; } });
const parent_namespace_1 = require("./parent-namespace");
const socket_io_adapter_1 = require("socket.io-adapter");
const parser = __importStar(require("socket.io-parser"));
const debug_1 = __importDefault(require("debug"));
const socket_1 = require("./socket");
Object.defineProperty(exports, "Socket", { enumerable: true, get: function () { return socket_1.Socket; } });
const debug = debug_1.default("socket.io:server");
const clientVersion = require("../package.json").version;
const dotMapRegex = /\.map/;
class Server extends events_1.EventEmitter {
constructor(srv, opts = {}) {
super();
/**
* @private
*/
this._nsps = new Map();
this.parentNsps = new Map();
if ("object" === typeof srv &&
srv instanceof Object &&
!srv.listen) {
opts = srv;
srv = undefined;
}
this.path(opts.path || "/socket.io");
this.connectTimeout(opts.connectTimeout || 45000);
this.serveClient(false !== opts.serveClient);
this._parser = opts.parser || parser;
this.encoder = new this._parser.Encoder();
this.adapter(opts.adapter || socket_io_adapter_1.Adapter);
this.sockets = this.of("/");
this.opts = opts;
if (srv)
this.attach(srv);
}
serveClient(v) {
if (!arguments.length)
return this._serveClient;
this._serveClient = v;
return this;
}
/**
* Executes the middleware for an incoming namespace not already created on the server.
*
* @param name - name of incoming namespace
* @param {Object} auth - the auth parameters
* @param fn - callback
*
* @private
*/
_checkNamespace(name, auth, fn) {
if (this.parentNsps.size === 0)
return fn(false);
const keysIterator = this.parentNsps.keys();
const run = () => {
const nextFn = keysIterator.next();
if (nextFn.done) {
return fn(false);
}
nextFn.value(name, auth, (err, allow) => {
if (err || !allow) {
run();
}
else {
fn(this.parentNsps.get(nextFn.value).createChild(name));
}
});
};
run();
}
path(v) {
if (!arguments.length)
return this._path;
this._path = v.replace(/\/$/, "");
const escapedPath = this._path.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&");
this.clientPathRegex = new RegExp("^" +
escapedPath +
"/socket\\.io(\\.min|\\.msgpack\\.min)?\\.js(\\.map)?$");
return this;
}
connectTimeout(v) {
if (v === undefined)
return this._connectTimeout;
this._connectTimeout = v;
return this;
}
adapter(v) {
if (!arguments.length)
return this._adapter;
this._adapter = v;
for (const nsp of this._nsps.values()) {
nsp._initAdapter();
}
return this;
}
/**
* Attaches socket.io to a server or port.
*
* @param srv - server or port
* @param opts - options passed to engine.io
* @return self
* @public
*/
listen(srv, opts = {}) {
return this.attach(srv, opts);
}
/**
* Attaches socket.io to a server or port.
*
* @param srv - server or port
* @param opts - options passed to engine.io
* @return self
* @public
*/
attach(srv, opts = {}) {
if ("function" == typeof srv) {
const msg = "You are trying to attach socket.io to an express " +
"request handler function. Please pass a http.Server instance.";
throw new Error(msg);
}
// handle a port as a string
if (Number(srv) == srv) {
srv = Number(srv);
}
if ("number" == typeof srv) {
debug("creating http server and binding to %d", srv);
const port = srv;
srv = http.createServer((req, res) => {
res.writeHead(404);
res.end();
});
srv.listen(port);
}
// merge the options passed to the Socket.IO server
Object.assign(opts, this.opts);
// set engine.io path to `/socket.io`
opts.path = opts.path || this._path;
this.initEngine(srv, opts);
return this;
}
/**
* Initialize engine
*
* @param srv - the server to attach to
* @param opts - options passed to engine.io
* @private
*/
initEngine(srv, opts) {
// initialize engine
debug("creating engine.io instance with opts %j", opts);
this.eio = engine.attach(srv, opts);
// attach static file serving
if (this._serveClient)
this.attachServe(srv);
// Export http server
this.httpServer = srv;
// bind to engine events
this.bind(this.eio);
}
/**
* Attaches the static file serving.
*
* @param srv http server
* @private
*/
attachServe(srv) {
debug("attaching client serving req handler");
const evs = srv.listeners("request").slice(0);
srv.removeAllListeners("request");
srv.on("request", (req, res) => {
if (this.clientPathRegex.test(req.url)) {
this.serve(req, res);
}
else {
for (let i = 0; i < evs.length; i++) {
evs[i].call(srv, req, res);
}
}
});
}
/**
* Handles a request serving of client source and map
*
* @param req
* @param res
* @private
*/
serve(req, res) {
const filename = req.url.replace(this._path, "");
const isMap = dotMapRegex.test(filename);
const type = isMap ? "map" : "source";
// Per the standard, ETags must be quoted:
// https://tools.ietf.org/html/rfc7232#section-2.3
const expectedEtag = '"' + clientVersion + '"';
const weakEtag = "W/" + expectedEtag;
const etag = req.headers["if-none-match"];
if (etag) {
if (expectedEtag === etag || weakEtag === etag) {
debug("serve client %s 304", type);
res.writeHead(304);
res.end();
return;
}
}
debug("serve client %s", type);
res.setHeader("Cache-Control", "public, max-age=0");
res.setHeader("Content-Type", "application/" + (isMap ? "json" : "javascript"));
res.setHeader("ETag", expectedEtag);
if (!isMap) {
res.setHeader("X-SourceMap", filename.substring(1) + ".map");
}
Server.sendFile(filename, req, res);
}
/**
* @param filename
* @param req
* @param res
* @private
*/
static sendFile(filename, req, res) {
const readStream = fs_1.createReadStream(path.join(__dirname, "../client-dist/", filename));
const encoding = accepts(req).encodings(["br", "gzip", "deflate"]);
const onError = (err) => {
if (err) {
res.end();
}
};
switch (encoding) {
case "br":
res.writeHead(200, { "content-encoding": "br" });
readStream.pipe(zlib_1.createBrotliCompress()).pipe(res);
stream_1.pipeline(readStream, zlib_1.createBrotliCompress(), res, onError);
break;
case "gzip":
res.writeHead(200, { "content-encoding": "gzip" });
stream_1.pipeline(readStream, zlib_1.createGzip(), res, onError);
break;
case "deflate":
res.writeHead(200, { "content-encoding": "deflate" });
stream_1.pipeline(readStream, zlib_1.createDeflate(), res, onError);
break;
default:
res.writeHead(200);
stream_1.pipeline(readStream, res, onError);
}
}
/**
* Binds socket.io to an engine.io instance.
*
* @param {engine.Server} engine engine.io (or compatible) server
* @return self
* @public
*/
bind(engine) {
this.engine = engine;
this.engine.on("connection", this.onconnection.bind(this));
return this;
}
/**
* Called with each incoming transport connection.
*
* @param {engine.Socket} conn
* @return self
* @private
*/
onconnection(conn) {
debug("incoming connection with id %s", conn.id);
const client = new client_1.Client(this, conn);
if (conn.protocol === 3) {
// @ts-ignore
client.connect("/");
}
return this;
}
/**
* Looks up a namespace.
*
* @param {String|RegExp|Function} name nsp name
* @param [fn] optional, nsp `connection` ev handler
* @public
*/
of(name, fn) {
if (typeof name === "function" || name instanceof RegExp) {
const parentNsp = new parent_namespace_1.ParentNamespace(this);
debug("initializing parent namespace %s", parentNsp.name);
if (typeof name === "function") {
this.parentNsps.set(name, parentNsp);
}
else {
this.parentNsps.set((nsp, conn, next) => next(null, name.test(nsp)), parentNsp);
}
if (fn) {
// @ts-ignore
parentNsp.on("connect", fn);
}
return parentNsp;
}
if (String(name)[0] !== "/")
name = "/" + name;
let nsp = this._nsps.get(name);
if (!nsp) {
debug("initializing namespace %s", name);
nsp = new namespace_1.Namespace(this, name);
this._nsps.set(name, nsp);
}
if (fn)
nsp.on("connect", fn);
return nsp;
}
/**
* Closes server connection
*
* @param [fn] optional, called as `fn([err])` on error OR all conns closed
* @public
*/
close(fn) {
for (const socket of this.sockets.sockets.values()) {
socket._onclose("server shutting down");
}
this.engine.close();
if (this.httpServer) {
this.httpServer.close(fn);
}
else {
fn && fn();
}
}
/**
* Sets up namespace middleware.
*
* @return self
* @public
*/
use(fn) {
this.sockets.use(fn);
return this;
}
/**
* Targets a room when emitting.
*
* @param name
* @return self
* @public
*/
to(name) {
this.sockets.to(name);
return this;
}
/**
* Targets a room when emitting.
*
* @param name
* @return self
* @public
*/
in(name) {
this.sockets.in(name);
return this;
}
/**
* Sends a `message` event to all clients.
*
* @return self
* @public
*/
send(...args) {
this.sockets.emit("message", ...args);
return this;
}
/**
* Sends a `message` event to all clients.
*
* @return self
* @public
*/
write(...args) {
this.sockets.emit("message", ...args);
return this;
}
/**
* Gets a list of socket ids.
*
* @public
*/
allSockets() {
return this.sockets.allSockets();
}
/**
* Sets the compress flag.
*
* @param compress - if `true`, compresses the sending data
* @return self
* @public
*/
compress(compress) {
this.sockets.compress(compress);
return this;
}
/**
* Sets a modifier for a subsequent event emission that the event data may be lost if the client is not ready to
* receive messages (because of network slowness or other issues, or because they’re connected through long polling
* and is in the middle of a request-response cycle).
*
* @return self
* @public
*/
get volatile() {
this.sockets.volatile;
return this;
}
/**
* Sets a modifier for a subsequent event emission that the event data will only be broadcast to the current node.
*
* @return self
* @public
*/
get local() {
this.sockets.local;
return this;
}
}
exports.Server = Server;
/**
* Expose main namespace (/).
*/
const emitterMethods = Object.keys(events_1.EventEmitter.prototype).filter(function (key) {
return typeof events_1.EventEmitter.prototype[key] === "function";
});
emitterMethods.forEach(function (fn) {
Server.prototype[fn] = function () {
return this.sockets[fn].apply(this.sockets, arguments);
};
});
module.exports = (srv, opts) => new Server(srv, opts);
module.exports.Server = Server;
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