127 lines
2.3 KiB
JavaScript
127 lines
2.3 KiB
JavaScript
/**
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* Module dependencies.
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*/
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var http = require('http');
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/**
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* Invoking the library as a function delegates to attach if the first argument
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* is an `http.Server`.
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*
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* If there are no arguments or the first argument is an options object, then
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* a new Server instance is returned.
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*
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* @param {http.Server} server (if specified, will be attached to by the new Server instance)
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* @param {Object} options
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* @return {Server} engine server
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* @api public
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*/
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exports = module.exports = function () {
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// backwards compatible use as `.attach`
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// if first argument is an http server
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if (arguments.length && arguments[0] instanceof http.Server) {
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return attach.apply(this, arguments);
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}
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// if first argument is not an http server, then just make a regular eio server
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return exports.Server.apply(null, arguments);
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};
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/**
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* Protocol revision number.
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*
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* @api public
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*/
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exports.protocol = 1;
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/**
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* Expose Server constructor.
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*
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* @api public
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*/
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exports.Server = require('./server');
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/**
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* Expose Socket constructor.
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*
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* @api public
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*/
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exports.Socket = require('./socket');
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/**
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* Expose Transport constructor.
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*
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* @api public
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*/
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exports.Transport = require('./transport');
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/**
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* Expose mutable list of available transports.
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*
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* @api public
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*/
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exports.transports = require('./transports');
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/**
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* Exports parser.
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*
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* @api public
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*/
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exports.parser = require('engine.io-parser');
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/**
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* Creates an http.Server exclusively used for WS upgrades.
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*
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* @param {Number} port
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* @param {Function} callback
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* @param {Object} options
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* @return {Server} websocket.io server
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* @api public
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*/
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exports.listen = listen;
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function listen (port, options, fn) {
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if ('function' === typeof options) {
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fn = options;
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options = {};
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}
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var server = http.createServer(function (req, res) {
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res.writeHead(501);
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res.end('Not Implemented');
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});
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// create engine server
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var engine = exports.attach(server, options);
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engine.httpServer = server;
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server.listen(port, fn);
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return engine;
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}
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/**
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* Captures upgrade requests for a http.Server.
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*
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* @param {http.Server} server
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* @param {Object} options
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* @return {Server} engine server
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* @api public
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*/
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exports.attach = attach;
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function attach (server, options) {
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var engine = new exports.Server(options);
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engine.attach(server, options);
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return engine;
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}
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