web.js

#!/usr/bin/env node
"use strict";

// For details on how to set up New Relic reporting, see
// https://docs.newrelic.com/docs/nodejs/configuring-nodejs-with-environment-variables
if (process.env.RAWGIT_ENABLE_NEW_RELIC) {
    require('newrelic');
}

var config     = require('./conf');
var express    = require('express');
var hbs        = require('express-handlebars');
var middleware = require('./lib/middleware');
var path       = require('path');
var stats      = require('./lib/stats');
var https = require('https');
var http = require('http');

// -- Configure Express --------------------------------------------------------
var app = express();

app.disable('x-powered-by');	

if (app.get('env') === 'development') {
    app.use(require('morgan')('dev'));
}

app.engine('handlebars', hbs({
    defaultLayout: 'main',
    helpers      : require('./lib/helpers'),
    layoutsDir   : path.join(__dirname, 'views', 'layouts'),
    partialsDir  : path.join(__dirname, 'views', 'partials')
}));

app.set('view engine', 'handlebars');

// Need to set the views directory explicitly or RawGit will break if it's run
// from any directory other than its own root.
app.set('views', path.join(__dirname, 'views'));

app.locals.config = config;

if (process.env.GOOGLE_ANALYTICS_ID) {
    app.locals.googleAnalyticsId = process.env.GOOGLE_ANALYTICS_ID;
}

app.use(express.static(config.publicDir));

// -- Routes -------------------------------------------------------------------
app.get('/', function (req, res) {
    res.render('index', {includeMetaDescription: true});
});

app.get('/faq', function (req, res) {
    res.render('faq', {title: 'FAQ'});
});

app.get('/stats', function (req, res) {
    res.render('stats', {title: 'Usage Statistics'});
});

app.get('/stats.html', function (req, res) {
    res.redirect(301, '/stats');
});

// Don't allow requests for Google Webmaster Central verification files.
app.get('*/google[0-9a-f]{16}.html',
    middleware.error403);

// Public or private gist.
app.route(/^\/[0-9A-Za-z-]+\/[0-9a-f]+\/raw\/?/)
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://gist.githubusercontent.com'),
        middleware.proxyPath('https://gist.githubusercontent.com')
    );


// Bitbucket file.
app.route(/\/(.*?)\/raw\/([a-f0-9]+?)\/(.*)/)
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://bitbucket.org'),
        middleware.proxyPath('https://bitbucket.org')
    );

// gitlab.com file
app.route(/\/.+?\/.+?\/raw\/.+\/.+/)
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://gitlab.com'),
        middleware.proxyPath('https://gitlab.com')
    );

// FilesAnywhere file.
app.route(/\/fatemp\/[0-9]+?\/[0-9]+?\/[0-9A-Z]+?\/(.*)/)
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://personal.filesanywhere.com'),
        middleware.proxyPath('https://personal.filesanywhere.com')
    );

// FilesAnywhere file.
app.route(/\/in\/(.*)/)
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://www.linkedin.com'),
        middleware.proxyPath('https://www.linkedin.com')
    );
	
// Launchpad file.
app.route(/\/~(.+?):\/(.+)/)
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://bazaar.launchpad.net'),
        middleware.proxyPath('https://bazaar.launchpad.net')
    );

// Repo file.
app.route('/:user/:repo/:branch/*')
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://raw.githubusercontent.com'),
        middleware.proxyPath('https://raw.githubusercontent.com')
    );

// Dropbox file.
app.route('/s/:randomstring/*')
    .all(
        middleware.cdn,
        middleware.stats,
        middleware.security,
        middleware.noRobots,
        middleware.autoThrottle,
        middleware.accessControl
    )
    .get(
        middleware.fileRedirect('https://dl.dropboxusercontent.com'),
        middleware.proxyPath('https://dl.dropboxusercontent.com')
    );

// Stats API.
app.get('/api/stats', function (req, res) {
    var count = Math.max(0, Math.min(20, req.query.count || 10));

    res.setHeader('Cache-Control', 'private, no-cache, no-store, max-age=0, must-revalidate');

    res.jsonp({
        status: 'success',

        data: {
            since    : stats.since,
            files    : stats.files().slice(0, count),
            referrers: stats.referrers().slice(0, count)
        }
    });
});

// -- Error handlers -----------------------------------------------------------
app.use(function (req, res) {
    res.status(404);
    res.sendFile(config.publicDir + '/errors/404.html');
});

app.use(function (err, req, res, next) {
    /* eslint no-unused-vars: 0 */
    console.error(err.stack);
    res.status(err.status || 500);
    res.sendFile(config.publicDir + '/errors/500.html');
});

// -- Server -------------------------------------------------------------------
if (app.get('env') !== 'test') {
    var port = process.env.PORT || 5000;

    app.listen(port, function () {
        console.log('Listening on port ' + port);
    });
}

module.exports = app;