CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!

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/* -----------------------------------------------
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/* Author : Titanium Network
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/* MIT license: http://opensource.org/licenses/MIT
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/* ----------------------------------------------- */
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const express = require('express'),
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    alloy = require('alloyproxy'),
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    app = express(),
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    http = require('http'),
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    fs = require('fs'),
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    path = require('path');
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const config = JSON.parse(fs.readFileSync('./config.json', {
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    encoding: 'utf8'
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}));
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const server = http.createServer(app);
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//Local Alloy Proxy
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const localprox = new alloy({
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    prefix: '/prefix/',
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    error: (proxy) => {
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        return proxy.res.send(fs.readFileSync(path.join(__dirname, 'public', 'error.html'), 'utf8'));
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    },
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    request: [],
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    response: [],
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    injection: true
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});
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app.use(localprox.app);
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localprox.ws(server);
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//Cloudflare Attack Mode Fix
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app.post('/', async (req, res) => {
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    switch (req.url) {
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        case '/':
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            return res.send(fs.readFileSync(path.join(__dirname, 'public', 'index.html'), 'utf8'));
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    }
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});
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//Querystring Navigation
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app.get('/', async (req, res) => {
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    switch (req.url) {
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        case '/':
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            return res.send(fs.readFileSync(path.join(__dirname, 'public', 'index.html'), 'utf8'));
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    }
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    switch (req.url) {
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        case '/?a':
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            return res.send(fs.readFileSync(path.join(__dirname, 'public', 'error.html'), 'utf8'));
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    }
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});
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app.use(express.static(path.join(__dirname, 'public')));
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server.listen(process.env.PORT || config.port);
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