140 lines
7.6 KiB
JavaScript
140 lines
7.6 KiB
JavaScript
/**
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* @description MeshCentral letsEncrypt module, uses GreenLock to do all the work.
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* @author Ylian Saint-Hilaire
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* @copyright Intel Corporation 2018
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* @license Apache-2.0
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* @version v0.0.2
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*/
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/*xjslint node: true */
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/*xjslint plusplus: true */
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/*xjslint maxlen: 256 */
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/*jshint node: true */
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/*jshint strict: false */
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/*jshint esversion: 6 */
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"use strict";
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module.exports.CreateLetsEncrypt = function (parent) {
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try {
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const greenlock = require('greenlock');
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var obj = {};
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obj.parent = parent;
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obj.redirWebServerHooked = false;
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obj.leDomains = null;
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obj.leResults = null;
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// Setup the certificate storage paths
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obj.configPath = obj.parent.path.join(obj.parent.datapath, 'letsencrypt');
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obj.webrootPath = obj.parent.path.join(obj.parent.datapath, 'letsencrypt', 'webroot');
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try { obj.parent.fs.mkdirSync(obj.configPath); } catch (e) { }
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try { obj.parent.fs.mkdirSync(obj.webrootPath); } catch (e) { }
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// Storage Backend, store data in the "meshcentral-data/letencrypt" folder.
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var leStore = require('le-store-certbot').create({ configDir: obj.configPath, webrootPath: obj.webrootPath, debug: obj.parent.args.debug > 0 });
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// ACME Challenge Handlers
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var leHttpChallenge = require('le-challenge-fs').create({ webrootPath: obj.webrootPath, debug: obj.parent.args.debug > 0 });
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// Function to agree to terms of service
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function leAgree(opts, agreeCb) { agreeCb(null, opts.tosUrl); }
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// Create the main GreenLock code module.
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var greenlockargs = {
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version: 'draft-12',
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server: (obj.parent.config.letsencrypt.production === true) ? greenlock.productionServerUrl : greenlock.stagingServerUrl,
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store: leStore,
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challenges: { 'http-01': leHttpChallenge },
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challengeType: 'http-01',
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agreeToTerms: leAgree,
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debug: obj.parent.args.debug > 0
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};
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if (obj.parent.args.debug == null) { greenlockargs.log = function (debug) { }; } // If not in debug mode, ignore all console output from greenlock (makes things clean).
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obj.le = greenlock.create(greenlockargs);
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// Hook up GreenLock to the redirection server
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if (obj.parent.redirserver.port == 80) { obj.parent.redirserver.app.use('/', obj.le.middleware()); obj.redirWebServerHooked = true; }
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obj.getCertificate = function (certs, func) {
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if (certs.CommonName == 'un-configured') { console.log("ERROR: Use --cert to setup the default server name before using Let's Encrypt."); func(certs); return; }
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if (obj.parent.config.letsencrypt == null) { func(certs); return; }
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if (obj.parent.config.letsencrypt.email == null) { console.log("ERROR: Let's Encrypt email address not specified."); func(certs); return; }
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if ((obj.parent.redirserver == null) || (obj.parent.redirserver.port !== 80)) { console.log("ERROR: Redirection web server must be active on port 80 for Let's Encrypt to work."); func(certs); return; }
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if (obj.redirWebServerHooked !== true) { console.log("ERROR: Redirection web server not setup for Let's Encrypt to work."); func(certs); return; }
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if ((obj.parent.config.letsencrypt.rsakeysize != null) && (obj.parent.config.letsencrypt.rsakeysize !== 2048) && (obj.parent.config.letsencrypt.rsakeysize !== 3072)) { console.log("ERROR: Invalid Let's Encrypt certificate key size, must be 2048 or 3072."); func(certs); return; }
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// Get the list of domains
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obj.leDomains = [certs.CommonName];
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if (obj.parent.config.letsencrypt.names != null) {
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if (typeof obj.parent.config.letsencrypt.names == 'string') { obj.parent.config.letsencrypt.names = obj.parent.config.letsencrypt.names.split(','); }
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obj.parent.config.letsencrypt.names.map(function (s) { return s.trim(); }); // Trim each name
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if ((typeof obj.parent.config.letsencrypt.names != 'object') || (obj.parent.config.letsencrypt.names.length == null)) { console.log("ERROR: Let's Encrypt names must be an array in config.json."); func(certs); return; }
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obj.leDomains = obj.parent.config.letsencrypt.names;
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obj.leDomains.sort(); // Sort the array so it's always going to be in the same order.
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}
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obj.le.check({ domains: obj.leDomains }).then(function (results) {
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if (results) {
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obj.leResults = results;
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// If we already have real certificates, use them.
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if (results.altnames.indexOf(certs.CommonName) >= 0) {
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certs.web.cert = results.cert;
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certs.web.key = results.privkey;
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certs.web.ca = [results.chain];
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}
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for (var i in obj.parent.config.domains) {
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if ((obj.parent.config.domains[i].dns != null) && (results.altnames.indexOf(obj.parent.config.domains[i].dns) >= 0)) {
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certs.dns[i].cert = results.cert;
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certs.dns[i].key = results.privkey;
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certs.dns[i].ca = [results.chain];
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}
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}
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func(certs);
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// Check if the Let's Encrypt certificate needs to be renewed.
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setTimeout(obj.checkRenewCertificate, 60000); // Check in 1 minute.
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setInterval(obj.checkRenewCertificate, 86400000); // Check again in 24 hours and every 24 hours.
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return;
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} else {
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// Otherwise return default certificates and try to get a real one
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func(certs);
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}
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console.log("Attempting to get Let's Encrypt certificate, may take a few minutes...");
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// Figure out the RSA key size
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var rsaKeySize = (obj.parent.config.letsencrypt.rsakeysize === 2048) ? 2048 : 3072;
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// TODO: Only register on one of the peers if multi-peers are active.
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// Register Certificate manually
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obj.le.register({
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domains: obj.leDomains,
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email: obj.parent.config.letsencrypt.email,
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agreeTos: true,
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rsaKeySize: rsaKeySize,
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challengeType: 'http-01'
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//renewWithin: 15 * 24 * 60 * 60 * 1000 // 15 days
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//renewWithin: 81 * 24 * 60 * 60 * 1000, // 81 days
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//renewBy: 80 * 24 * 60 * 60 * 1000 // 80 days
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}).then(function (xresults) {
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obj.parent.performServerCertUpdate(); // Reset the server, TODO: Reset all peers
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}, function (err) {
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console.error("ERROR: Let's encrypt error: ", err);
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});
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});
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};
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// Check if we need to renew the certificate, call this every day.
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obj.checkRenewCertificate = function () {
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if (obj.leResults == null) { return; }
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// TODO: Only renew on one of the peers if multi-peers are active.
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// Check if we need to renew the certificate
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obj.le.renew({ duplicate: false, domains: obj.leDomains, email: obj.parent.config.letsencrypt.email }, obj.leResults).then(function (xresults) {
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obj.parent.performServerCertUpdate(); // Reset the server, TODO: Reset all peers
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}, function (err) { }); // If we can't renew, ignore.
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};
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return obj;
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} catch (ex) { console.log(ex); } // Unable to start Let's Encrypt
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return null;
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}; |