115 lines
3.7 KiB
JavaScript
115 lines
3.7 KiB
JavaScript
'use strict';
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module.exports.create = function (lex, securePort, insecurePort, info, serverCallback) {
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var PromiseA = require('bluebird').Promise;
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var appPromise;
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//var app;
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var http = require('http');
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var redirectives;
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function useAppInsecurely(req, res) {
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if (!appPromise) {
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return false;
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}
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appPromise.then(function (app) {
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req._WALNUT_SECURITY_EXCEPTION = true;
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app(req, res);
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});
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return true;
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}
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function redirectHttps(req, res) {
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// Let it do this once they visit the https site
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// res.setHeader('Strict-Transport-Security', 'max-age=10886400; includeSubDomains; preload');
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var host = req.headers.host || '';
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var url = req.url;
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// TODO
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// XXX NOTE: info.conf.redirects may or may not be loaded at first
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// the object will be modified when the config is loaded
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if (!redirectives && info.conf.redirects) {
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redirectives = require('./hostname-redirects').compile(info.conf.redirects);
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}
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if (require('./no-www').scrubTheDub(req, res, redirectives)) {
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return true;
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}
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// TODO
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// allow exceptions for the case of arduino and whatnot that cannot handle https?
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// http://evothings.com/is-it-possible-to-secure-micro-controllers-used-within-iot/
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// needs ECDSA?
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if (/redirect-www.org$/.test(host) && useAppInsecurely(req, res)) {
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return true;
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}
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var escapeHtml = require('escape-html');
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var newLocation = 'https://'
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+ host.replace(/:\d+/, ':' + securePort) + url
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;
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var safeLocation = escapeHtml(newLocation);
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var metaRedirect = ''
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+ '<html>\n'
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+ '<head>\n'
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+ ' <style>* { background-color: white; color: white; text-decoration: none; }</style>\n'
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+ ' <META http-equiv="refresh" content="0;URL=' + safeLocation + '">\n'
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+ '</head>\n'
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+ '<body style="display: none;">\n'
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+ ' <p>You requested an insecure resource. Please use this instead: \n'
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+ ' <a href="' + safeLocation + '">' + safeLocation + '</a></p>\n'
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+ '</body>\n'
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+ '</html>\n'
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;
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// DO NOT HTTP REDIRECT
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/*
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res.setHeader('Location', newLocation);
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res.statusCode = 302;
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*/
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// BAD NEWS BEARS
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//
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// When people are experimenting with the API and posting tutorials
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// they'll use cURL and they'll forget to prefix with https://
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// If we allow that, then many users will be sending private tokens
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// and such with POSTs in clear text and, worse, it will work!
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// To minimize this, we give browser users a mostly optimal experience,
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// but people experimenting with the API get a message letting them know
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// that they're doing it wrong and thus forces them to ensure they encrypt.
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res.setHeader('Content-Type', 'text/html; charset=utf-8');
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res.end(metaRedirect);
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}
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// TODO localhost-only server shutdown mechanism
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// that closes all sockets, waits for them to finish,
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// and then hands control over completely to respawned server
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//
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// Redirect HTTP to HTTPS
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//
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// This simply redirects from the current insecure location to the encrypted location
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//
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var insecureServer;
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insecureServer = http.createServer();
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insecureServer.listen(insecurePort, function () {
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console.log("\nListening on http://localhost:" + insecureServer.address().port);
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console.log("(handling any explicit redirects and redirecting all other traffic to https)\n");
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if (serverCallback) {
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appPromise = serverCallback(null, insecureServer);
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}
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});
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if (lex) {
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var LEX = require('letsencrypt-express');
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insecureServer.on('request', LEX.createAcmeResponder(lex, redirectHttps));
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} else {
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insecureServer.on('request', redirectHttps);
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}
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return PromiseA.resolve(insecureServer);
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};
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