627 lines
22 KiB
JavaScript
627 lines
22 KiB
JavaScript
'use strict';
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var DAY = 24 * 60 * 60 * 1000;
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//var MIN = 60 * 1000;
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var ACME = require('acme-v2/compat').ACME;
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var pkg = require('./package.json');
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var PromiseA;
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try {
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PromiseA = require('bluebird');
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} catch(e) {
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PromiseA = global.Promise;
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}
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var util = require('util');
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function promisifyAllSelf(obj) {
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if (obj.__promisified) { return obj; }
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Object.keys(obj).forEach(function (key) {
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if ('function' === typeof obj[key] && !/Async$/.test(key)) {
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obj[key + 'Async'] = util.promisify(obj[key]);
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}
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});
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obj.__promisified = true;
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return obj;
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}
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var Greenlock = module.exports;
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Greenlock.Greenlock = Greenlock;
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Greenlock.LE = Greenlock;
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// in-process cache, shared between all instances
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var ipc = {};
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function _log(debug) {
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if (debug) {
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var args = Array.prototype.slice.call(arguments);
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args.shift();
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args.unshift("[gl/index.js]");
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console.log.apply(console, args);
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}
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}
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Greenlock.defaults = {
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productionServerUrl: 'https://acme-v01.api.letsencrypt.org/directory'
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, stagingServerUrl: 'https://acme-staging.api.letsencrypt.org/directory'
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, rsaKeySize: ACME.rsaKeySize || 2048
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, challengeType: ACME.challengeType || 'http-01'
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, challengeTypes: ACME.challengeTypes || [ 'http-01', 'dns-01' ]
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, acmeChallengePrefix: ACME.acmeChallengePrefix
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};
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// backwards compat
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Object.keys(Greenlock.defaults).forEach(function (key) {
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Greenlock[key] = Greenlock.defaults[key];
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});
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// show all possible options
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var u; // undefined
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Greenlock._undefined = {
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acme: u
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, store: u
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//, challenge: u
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, challenges: u
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, sni: u
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, tlsOptions: u
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, register: u
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, check: u
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, renewWithin: u // le-auto-sni and core
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//, renewBy: u // le-auto-sni
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, acmeChallengePrefix: u
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, rsaKeySize: u
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, challengeType: u
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, server: u
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, version: u
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, agreeToTerms: u
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, _ipc: u
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, duplicate: u
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, _acmeUrls: u
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};
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Greenlock._undefine = function (gl) {
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Object.keys(Greenlock._undefined).forEach(function (key) {
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if (!(key in gl)) {
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gl[key] = u;
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}
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});
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return gl;
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};
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Greenlock.create = function (gl) {
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gl.store = gl.store || require('le-store-certbot').create({
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debug: gl.debug
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, configDir: gl.configDir
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, logsDir: gl.logsDir
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, webrootPath: gl.webrootPath
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});
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gl.core = require('./lib/core');
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var log = gl.log || _log;
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if (!gl.challenges) {
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gl.challenges = {};
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}
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if (!gl.challenges['http-01']) {
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gl.challenges['http-01'] = require('le-challenge-fs').create({
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debug: gl.debug
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, webrootPath: gl.webrootPath
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});
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}
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if (!gl.challenges['dns-01']) {
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try {
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gl.challenges['dns-01'] = require('le-challenge-ddns').create({ debug: gl.debug });
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} catch(e) {
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try {
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gl.challenges['dns-01'] = require('le-challenge-dns').create({ debug: gl.debug });
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} catch(e) {
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// not yet implemented
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}
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}
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}
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gl = Greenlock._undefine(gl);
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gl.acmeChallengePrefix = Greenlock.acmeChallengePrefix;
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gl.rsaKeySize = gl.rsaKeySize || Greenlock.rsaKeySize;
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gl.challengeType = gl.challengeType || Greenlock.challengeType;
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gl._ipc = ipc;
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gl._communityPackage = gl._communityPackage || 'greenlock.js';
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if ('greenlock.js' === gl._communityPackage) {
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gl._communityPackageVersion = pkg.version;
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} else {
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gl._communityPackageVersion = gl._communityPackageVersion || ('greenlock.js-' + pkg.version);
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}
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gl.agreeToTerms = gl.agreeToTerms || function (args, agreeCb) {
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agreeCb(new Error("'agreeToTerms' was not supplied to Greenlock and 'agreeTos' was not supplied to Greenlock.register"));
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};
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if (!gl.renewWithin) { gl.renewWithin = 14 * DAY; }
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// renewBy has a default in le-sni-auto
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///////////////////////////
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// BEGIN VERSION MADNESS //
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///////////////////////////
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gl.version = gl.version || 'draft-11';
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gl.server = gl.server || 'https://acme-v02.api.letsencrypt.org/directory';
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if (!gl.version) {
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//console.warn("Please specify version: 'v01' (Let's Encrypt v1) or 'draft-12' (Let's Encrypt v2 / ACME draft 12)");
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console.warn("");
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console.warn("");
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console.warn("");
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console.warn("==========================================================");
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console.warn("== greenlock.js (v2.2.0+) ==");
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console.warn("==========================================================");
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console.warn("");
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console.warn("Please specify 'version' option:");
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console.warn("");
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console.warn(" 'draft-12' for Let's Encrypt v2 and ACME draft 12");
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console.warn(" ('v02' is an alias of 'draft-12'");
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console.warn("");
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console.warn("or");
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console.warn("");
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console.warn(" 'v01' for Let's Encrypt v1 (deprecated)");
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console.warn(" (also 'npm install --save le-acme-core' as this legacy dependency will soon be removed)");
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console.warn("");
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console.warn("This will be required in versions v2.3+");
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console.warn("");
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console.warn("");
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} else if ('v02' === gl.version) {
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gl.version = 'draft-11';
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} else if ('draft-12' === gl.version) {
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gl.version = 'draft-11';
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} else if ('draft-11' === gl.version) {
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// no-op
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} else if ('v01' !== gl.version) {
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throw new Error("Unrecognized version '" + gl.version + "'");
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}
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if (!gl.server) {
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throw new Error("opts.server must specify an ACME directory URL, such as 'https://acme-staging-v02.api.letsencrypt.org/directory'");
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}
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if ('staging' === gl.server || 'production' === gl.server) {
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if ('staging' === gl.server) {
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gl.server = 'https://acme-staging.api.letsencrypt.org/directory';
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gl.version = 'v01';
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gl._deprecatedServerName = 'staging';
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}
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else if ('production' === gl.server) {
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gl.server = 'https://acme-v01.api.letsencrypt.org/directory';
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gl.version = 'v01';
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gl._deprecatedServerName = 'production';
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}
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console.warn("");
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console.warn("");
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console.warn("=== WARNING ===");
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console.warn("");
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console.warn("Due to versioning issues the '" + gl._deprecatedServerName + "' option is deprecated.");
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console.warn("Please specify the full url and version.");
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console.warn("");
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console.warn("For APIs add:");
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console.warn("\t, \"version\": \"" + gl.version + "\"");
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console.warn("\t, \"server\": \"" + gl.server + "\"");
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console.warn("");
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console.warn("For the CLI add:");
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console.warn("\t--acme-url '" + gl.server + "' \\");
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console.warn("\t--acme-version '" + gl.version + "' \\");
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console.warn("");
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console.warn("");
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}
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function loadLeV01() {
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console.warn("");
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console.warn("=== WARNING ===");
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console.warn("");
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console.warn("Let's Encrypt v1 is deprecated.");
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console.warn("Please update to Let's Encrypt v2 (ACME draft 12)");
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console.warn("");
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try {
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return require('le-acme-core').ACME;
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} catch(e) {
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console.error("");
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console.error("=== Error (easy-to-fix) ===");
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console.error("");
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console.error("Hey, this isn't a big deal, but you need to manually add v1 support:");
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console.error("");
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console.error(" npm install --save le-acme-core");
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console.error("");
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console.error("Just run that real quick, restart, and everything will work great.");
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console.error("");
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console.error("");
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process.exit(e.code || 13);
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}
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}
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if (-1 !== [
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'https://acme-v02.api.letsencrypt.org/directory'
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, 'https://acme-staging-v02.api.letsencrypt.org/directory' ].indexOf(gl.server)
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) {
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if ('draft-11' !== gl.version) {
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console.warn("Detected Let's Encrypt v02 URL. Changing version to draft-12.");
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gl.version = 'draft-11';
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}
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} else if (-1 !== [
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'https://acme-v01.api.letsencrypt.org/directory'
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, 'https://acme-staging.api.letsencrypt.org/directory' ].indexOf(gl.server)
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|| 'v01' === gl.version
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) {
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if ('v01' !== gl.version) {
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console.warn("Detected Let's Encrypt v01 URL (deprecated). Changing version to v01.");
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gl.version = 'v01';
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}
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}
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if ('v01' === gl.version) {
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ACME = loadLeV01();
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}
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/////////////////////////
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// END VERSION MADNESS //
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/////////////////////////
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gl.acme = gl.acme || ACME.create({ debug: gl.debug });
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if (gl.acme.create) {
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gl.acme = gl.acme.create(gl);
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}
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gl.acme = promisifyAllSelf(gl.acme);
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gl._acmeOpts = gl.acme.options || gl.acme.getOptions();
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Object.keys(gl._acmeOpts).forEach(function (key) {
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if (!(key in gl)) {
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gl[key] = gl._acmeOpts[key];
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}
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});
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try {
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if (gl.store.create) { gl.store = gl.store.create(gl); }
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gl.store = promisifyAllSelf(gl.store);
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gl.store.accounts = promisifyAllSelf(gl.store.accounts);
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gl.store.certificates = promisifyAllSelf(gl.store.certificates);
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gl._storeOpts = gl.store.options || gl.store.getOptions();
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} catch(e) {
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console.error(e);
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console.error("\nPROBABLE CAUSE:\n"
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+ "\tYour le-store module should have a create function and return { options, accounts, certificates }\n");
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process.exit(18);
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return;
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}
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Object.keys(gl._storeOpts).forEach(function (key) {
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if (!(key in gl)) {
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gl[key] = gl._storeOpts[key];
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}
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});
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//
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// Backwards compat for <= v2.1.7
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//
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if (gl.challenge) {
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console.warn("Deprecated use of gl.challenge. Use gl.challenges['" + Greenlock.challengeType + "'] instead.");
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gl.challenges[gl.challengeType] = gl.challenge;
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gl.challenge = undefined;
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}
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Object.keys(gl.challenges||{}).forEach(function (challengeType) {
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var challenger = gl.challenges[challengeType];
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if (challenger.create) {
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challenger = gl.challenges[challengeType] = challenger.create(gl);
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}
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challenger = gl.challenges[challengeType] = promisifyAllSelf(challenger);
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gl['_challengeOpts_' + challengeType] = challenger.options || challenger.getOptions();
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Object.keys(gl['_challengeOpts_' + challengeType]).forEach(function (key) {
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if (!(key in gl)) {
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gl[key] = gl['_challengeOpts_' + challengeType][key];
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}
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});
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// TODO wrap these here and now with tplCopy?
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if (!challenger.set || ![5,2,1].includes(challenger.set.length)) {
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throw new Error("gl.challenges[" + challengeType + "].set receives the wrong number of arguments."
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+ " You must define setChallenge as function (opts) { return Promise.resolve(); }");
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}
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if (challenger.get && ![4,2,1].includes(challenger.get.length)) {
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throw new Error("gl.challenges[" + challengeType + "].get receives the wrong number of arguments."
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+ " You must define getChallenge as function (opts) { return Promise.resolve(); }");
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}
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if (!challenger.remove || ![4,2,1].includes(challenger.remove.length)) {
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throw new Error("gl.challenges[" + challengeType + "].remove receives the wrong number of arguments."
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+ " You must define removeChallenge as function (opts) { return Promise.resolve(); }");
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}
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/*
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if (!gl._challengeWarn && (!challenger.loopback || 4 !== challenger.loopback.length)) {
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gl._challengeWarn = true;
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console.warn("gl.challenges[" + challengeType + "].loopback should be defined as function (opts, domain, token, cb) { ... } and should prove (by external means) that the ACME server challenge '" + challengeType + "' will succeed");
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}
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else if (!gl._challengeWarn && (!challenger.test || 5 !== challenger.test.length)) {
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gl._challengeWarn = true;
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console.warn("gl.challenges[" + challengeType + "].test should be defined as function (opts, domain, token, keyAuthorization, cb) { ... } and should prove (by external means) that the ACME server challenge '" + challengeType + "' will succeed");
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}
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*/
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});
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gl.sni = gl.sni || null;
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gl.tlsOptions = gl.tlsOptions || gl.httpsOptions || {};
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// Workaround for https://github.com/nodejs/node/issues/22389
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gl._updateServernames = function (cert) {
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if (!gl._certnames) { gl._certnames = {}; }
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// Note: Any given domain could exist on multiple certs
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// (especially during renewal where some may be added)
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// hence we use a separate object for each domain and list each domain on it
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// to get the minimal full set associated with each cert and domain
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var allDomains = [cert.subject].concat(cert.altnames.slice(0));
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allDomains.forEach(function (name) {
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name = name.toLowerCase();
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if (!gl._certnames[name]) {
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gl._certnames[name] = {};
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}
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allDomains.forEach(function (name2) {
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name2 = name2.toLowerCase();
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gl._certnames[name][name2] = true;
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});
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});
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};
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gl._checkServername = function (safeHost, servername) {
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// odd, but acceptable
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if (!safeHost || !servername) { return true; }
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if (safeHost === servername) { return true; }
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// connection established with servername and session is re-used for allowed name
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if (gl._certnames[servername] && gl._certnames[servername][safeHost]) {
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return true;
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}
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return false;
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};
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if (!gl.tlsOptions.SNICallback) {
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if (!gl.getCertificatesAsync && !gl.getCertificates) {
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if (Array.isArray(gl.approveDomains)) {
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gl.approvedDomains = gl.approveDomains;
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gl.approveDomains = null;
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}
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if (!gl.approveDomains) {
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gl.approveDomains = function (lexOpts, cb) {
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var err;
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var emsg;
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if (!gl.email) {
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throw new Error("le-sni-auto is not properly configured. Missing email");
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}
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if (!gl.agreeTos) {
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throw new Error("le-sni-auto is not properly configured. Missing agreeTos");
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}
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if (!/[a-z]/i.test(lexOpts.domain)) {
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cb(new Error("le-sni-auto does not allow IP addresses in SNI"));
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return;
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}
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if (!Array.isArray(gl.approvedDomains)) {
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// The acme-v2 package uses pre-flight test challenges to
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// verify that each requested domain is hosted by the server
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// these checks are sufficient for most use cases
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return cb(null, lexOpts);
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}
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if (lexOpts.domains.every(function (domain) {
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return -1 !== gl.approvedDomains.indexOf(domain);
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})) {
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// commented this out because people expect to be able to edit the list of domains
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// lexOpts.domains = gl.approvedDomains.slice(0);
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lexOpts.email = gl.email;
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lexOpts.agreeTos = gl.agreeTos;
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lexOpts.communityMember = gl.communityMember;
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lexOpts.telemetry = gl.telemetry;
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return cb(null, lexOpts);
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}
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emsg = "tls SNI for '" + lexOpts.domains.join(',') + "' rejected: not in list '" + gl.approvedDomains + "'";
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log(gl.debug, emsg, lexOpts.domains, gl.approvedDomains);
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err = new Error(emsg);
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err.code = 'E_REJECT_SNI';
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cb(err);
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};
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}
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gl.getCertificates = function (domain, certs, cb) {
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// certs come from current in-memory cache, not lookup
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log(gl.debug, 'gl.getCertificates called for', domain, 'with certs for', certs && certs.altnames || 'NONE');
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var opts = {
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domain: domain, domains: certs && certs.altnames || [ domain ]
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, certs: certs, certificate: {}, account: {}
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};
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function cb2(results) {
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log(gl.debug, 'gl.approveDomains called with certs for', results.certs && results.certs.altnames || 'NONE', 'and options:');
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log(gl.debug, results.options);
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var options = results.options || results;
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// just in case we get a completely different object from the one we originally created
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if (!options.account) { options.account = {}; }
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if (!options.certificate) { options.certificate = {}; }
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if (results.certs) {
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log(gl.debug, 'gl renewing');
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return gl.core.certificates.renewAsync(options, results.certs).then(
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function (certs) {
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// Workaround for https://github.com/nodejs/node/issues/22389
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gl._updateServernames(certs);
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cb(null, certs);
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}
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, function (e) {
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console.debug("Error renewing certificate for '" + domain + "':");
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console.debug(e);
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console.error("");
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cb(e);
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}
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);
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} else {
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log(gl.debug, 'gl getting from disk or registering new');
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return gl.core.certificates.getAsync(options).then(
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function (certs) {
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// Workaround for https://github.com/nodejs/node/issues/22389
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gl._updateServernames(certs);
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cb(null, certs);
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}
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, function (e) {
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console.debug("Error loading/registering certificate for '" + domain + "':");
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console.debug(e);
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console.error("");
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cb(e);
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}
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);
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}
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}
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function eb2(_err) {
|
|
if (false !== gl.logRejectedDomains) {
|
|
console.error("[Error] approveDomains rejected tls sni '" + domain + "'");
|
|
console.error("[Error] (see https://git.coolaj86.com/coolaj86/greenlock.js/issues/11)");
|
|
if ('E_REJECT_SNI' !== _err.code) {
|
|
console.error("[Error] This is the rejection message:");
|
|
console.error(_err.message);
|
|
}
|
|
console.error("");
|
|
}
|
|
cb(_err);
|
|
return;
|
|
}
|
|
function mb2(_err, results) {
|
|
if (_err) { eb2(_err); return; }
|
|
cb2(results);
|
|
}
|
|
|
|
try {
|
|
if (1 === gl.approveDomains.length) {
|
|
gl.approveDomains(opts).then(cb2).catch(eb2);
|
|
} else if (2 === gl.approveDomains.length) {
|
|
gl.approveDomains(opts, mb2);
|
|
} else {
|
|
gl.approveDomains(opts, certs, mb2);
|
|
}
|
|
} catch(e) {
|
|
console.error("[ERROR] Something went wrong in approveDomains:");
|
|
console.error(e);
|
|
console.error("BUT WAIT! Good news: It's probably your fault, so you can probably fix it.");
|
|
}
|
|
};
|
|
}
|
|
gl.sni = gl.sni || require('le-sni-auto');
|
|
if (gl.sni.create) {
|
|
gl.sni = gl.sni.create(gl);
|
|
}
|
|
gl.tlsOptions.SNICallback = function (_domain, cb) {
|
|
// format and (lightly) sanitize sni so that users can be naive
|
|
// and not have to worry about SQL injection or fs discovery
|
|
var domain = (_domain||'').toLowerCase();
|
|
// hostname labels allow a-z, 0-9, -, and are separated by dots
|
|
// _ is sometimes allowed
|
|
// REGEX // https://www.codeproject.com/Questions/1063023/alphanumeric-validation-javascript-without-regex
|
|
if (!gl.__sni_allow_dangerous_names && (!/^[a-z0-9_\.\-]+$/i.test(domain) || -1 !== domain.indexOf('..'))) {
|
|
log(gl.debug, "invalid sni '" + domain + "'");
|
|
cb(new Error("invalid SNI"));
|
|
return;
|
|
}
|
|
|
|
try {
|
|
gl.sni.sniCallback(gl.__sni_preserve_case && _domain || domain, cb);
|
|
} catch(e) {
|
|
console.error("[ERROR] Something went wrong in the SNICallback:");
|
|
console.error(e);
|
|
cb(e);
|
|
}
|
|
};
|
|
}
|
|
|
|
// We want to move to using tlsOptions instead of httpsOptions, but we also need to make
|
|
// sure anything that uses this object will still work if looking for httpsOptions.
|
|
gl.httpsOptions = gl.tlsOptions;
|
|
|
|
if (gl.core.create) {
|
|
gl.core = gl.core.create(gl);
|
|
}
|
|
|
|
gl.renew = function (args, certs) {
|
|
return gl.core.certificates.renewAsync(args, certs);
|
|
};
|
|
|
|
gl.register = function (args) {
|
|
return gl.core.certificates.getAsync(args);
|
|
};
|
|
|
|
gl.check = function (args) {
|
|
// TODO must return email, domains, tos, pems
|
|
return gl.core.certificates.checkAsync(args);
|
|
};
|
|
|
|
gl.middleware = gl.middleware || require('./lib/middleware');
|
|
if (gl.middleware.create) {
|
|
gl.middleware = gl.middleware.create(gl);
|
|
}
|
|
|
|
//var SERVERNAME_RE = /^[a-z0-9\.\-_]+$/;
|
|
var SERVERNAME_G = /[^a-z0-9\.\-_]/;
|
|
gl.middleware.sanitizeHost = function (app) {
|
|
return function (req, res, next) {
|
|
function realNext() {
|
|
if ('function' === typeof app) {
|
|
app(req, res);
|
|
} else if ('function' === typeof next) {
|
|
next();
|
|
} else {
|
|
res.statusCode = 500;
|
|
res.end("Error: no middleware assigned");
|
|
}
|
|
}
|
|
// Get the host:port combo, if it exists
|
|
var host = (req.headers.host||'').split(':');
|
|
|
|
// if not, move along
|
|
if (!host[0]) { realNext(); return; }
|
|
|
|
// if so, remove non-allowed characters
|
|
var safehost = host[0].toLowerCase().replace(SERVERNAME_G, '');
|
|
|
|
// if there were unallowed characters, complain
|
|
if (!gl.__sni_allow_dangerous_names && safehost.length !== host[0].length) {
|
|
res.statusCode = 400;
|
|
res.end("Malformed HTTP Header: 'Host: " + host[0] + "'");
|
|
return;
|
|
}
|
|
|
|
// make lowercase
|
|
if (!gl.__sni_preserve_case) {
|
|
host[0] = safehost;
|
|
req.headers.host = host.join(':');
|
|
}
|
|
|
|
// Note: This sanitize function is also called on plain sockets, which don't need Domain Fronting checks
|
|
if (req.socket.encrypted && !gl.__sni_allow_domain_fronting) {
|
|
if (req.socket && 'string' === typeof req.socket.servername) {
|
|
// Workaround for https://github.com/nodejs/node/issues/22389
|
|
if (!gl._checkServername(safehost, req.socket.servername.toLowerCase())) {
|
|
res.statusCode = 400;
|
|
res.setHeader('Content-Type', 'text/html; charset=utf-8');
|
|
res.end(
|
|
"<h1>Domain Fronting Error</h1>"
|
|
+ "<p>This connection was secured using TLS/SSL for '" + req.socket.servername.toLowerCase() + "'</p>"
|
|
+ "<p>The HTTP request specified 'Host: " + safehost + "', which is (obviously) different.</p>"
|
|
+ "<p>Because this looks like a domain fronting attack, the connection has been terminated.</p>"
|
|
);
|
|
return;
|
|
}
|
|
} else if (safehost && !gl.middleware.sanitizeHost._skip_fronting_check) {
|
|
// TODO how to handle wrapped sockets, as with telebit?
|
|
console.warn("\n\n\n[greenlock] WARN: no string for req.socket.servername,"
|
|
+ " skipping fronting check for '" + safehost + "'\n\n\n");
|
|
gl.middleware.sanitizeHost._skip_fronting_check = true;
|
|
}
|
|
}
|
|
|
|
// carry on
|
|
realNext();
|
|
};
|
|
};
|
|
gl.middleware.sanitizeHost._skip_fronting_check = false;
|
|
|
|
return gl;
|
|
};
|