@cocalc/project/dist/browser-websocket/server.js

CoCalc: project daemon

"use strict";
/*
 *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
 *  License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
 */
Object.defineProperty(exports, "__esModule", { value: true });
/*
Create the Primus realtime socket server
*/
const { join } = require("path");
const express_1 = require("express");
// Primus devs don't care about typescript: https://github.com/primus/primus/pull/623
const Primus = require("primus");
// We are NOT using UglifyJS because it can easily take 3 blocking seconds of cpu
// during project startup to save 100kb -- it just isn't worth it.  Obviously, it
// would be optimal to build this one and for all into the project image.  TODO.
//const UglifyJS = require("uglify-js");
const api_1 = require("./api");
const logger_1 = require("@cocalc/project/logger");
function init(server, basePath) {
    const winston = (0, logger_1.getLogger)("websocket-server");
    const opts = {
        pathname: join(basePath, ".smc", "ws"),
        transformer: "websockets",
    };
    winston.info(`Initalizing primus websocket server at "${opts.pathname}"...`);
    const primus = new Primus(server, opts);
    // add multiplex to Primus so we have channels.
    primus.plugin("multiplex", require("primus-multiplex"));
    (0, api_1.init_websocket_api)(primus);
    const router = (0, express_1.Router)();
    const library = primus.library();
    // See note above.
    //UglifyJS.minify(primus.library()).code;
    router.get("/.smc/primus.js", (_, res) => {
        winston.debug("serving up primus.js to a specific client");
        res.send(library);
    });
    winston.info(`waiting for clients to request primus.js (length=${library.length})...`);
    return router;
}
exports.default = init;
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