281 lines
9.2 KiB
JavaScript
281 lines
9.2 KiB
JavaScript
'use strict';
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var LE = require('../');
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var ipc = {}; // in-process cache
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module.exports.create = function (defaults, handlers, backend) {
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var backendDefaults = backend.getDefaults && backend.getDefaults || backend.defaults || {};
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defaults.server = defaults.server || LE.liveServer;
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handlers.merge = require('./common').merge;
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handlers.tplCopy = require('./common').tplCopy;
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var PromiseA = require('bluebird');
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var RSA = PromiseA.promisifyAll(require('rsa-compat').RSA);
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var LeCore = PromiseA.promisifyAll(require('letiny-core'));
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var crypto = require('crypto');
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function attachCertInfo(results) {
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var getCertInfo = require('./cert-info').getCertInfo;
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// XXX Note: Parsing the certificate info comes at a great cost (~500kb)
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var certInfo = getCertInfo(results.cert);
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//results.issuedAt = arr[3].mtime.valueOf()
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results.issuedAt = Date(certInfo.notBefore.value).valueOf(); // Date.now()
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results.expiresAt = Date(certInfo.notAfter.value).valueOf();
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return results;
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}
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function createAccount(args, handlers) {
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args.rsaKeySize = args.rsaKeySize || 2048;
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return RSA.generateKeypairAsync(args.rsaKeySize, 65537, { public: true, pem: true }).then(function (keypair) {
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return LeCore.registerNewAccountAsync({
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email: args.email
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, newRegUrl: args._acmeUrls.newReg
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, agreeToTerms: function (tosUrl, agree) {
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// args.email = email; // already there
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args.tosUrl = tosUrl;
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handlers.agreeToTerms(args, agree);
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}
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, accountKeypair: keypair
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, debug: defaults.debug || args.debug || handlers.debug
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}).then(function (body) {
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// TODO XXX use sha256 (the python client uses md5)
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// TODO ssh fingerprint (noted on rsa-compat issues page, I believe)
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keypair.publicKeyMd5 = crypto.createHash('md5').update(RSA.exportPublicPem(keypair)).digest('hex');
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keypair.publicKeySha256 = crypto.createHash('sha256').update(RSA.exportPublicPem(keypair)).digest('hex');
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var accountId = keypair.publicKeyMd5;
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var regr = { body: body };
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var account = {};
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args.accountId = accountId;
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account.keypair = keypair;
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account.regr = regr;
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account.accountId = accountId;
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account.id = accountId;
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args.account = account;
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return backend.setAccountAsync(args, account).then(function () {
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return account;
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});
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});
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});
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}
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function getAcmeUrls(args) {
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var now = Date.now();
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// TODO check response header on request for cache time
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if ((now - ipc.acmeUrlsUpdatedAt) < 10 * 60 * 1000) {
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return PromiseA.resolve(ipc.acmeUrls);
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}
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return LeCore.getAcmeUrlsAsync(args.server).then(function (data) {
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ipc.acmeUrlsUpdatedAt = Date.now();
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ipc.acmeUrls = data;
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return ipc.acmeUrls;
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});
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}
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function getCertificateAsync(args, defaults, handlers) {
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args.rsaKeySize = args.rsaKeySize || 2048;
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args.challengeType = args.challengeType || 'http-01';
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function log() {
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if (args.debug || defaults.debug) {
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console.log.apply(console, arguments);
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}
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}
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var account = args.account;
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var promise;
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var keypairOpts = { public: true, pem: true };
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promise = backend.getPrivatePem(args).then(function (pem) {
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return RSA.import({ privateKeyPem: pem });
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}, function (/*err*/) {
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return RSA.generateKeypairAsync(args.rsaKeySize, 65537, keypairOpts).then(function (keypair) {
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keypair.privateKeyPem = RSA.exportPrivatePem(keypair);
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keypair.privateKeyJwk = RSA.exportPrivateJwk(keypair);
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return backend.setPrivatePem(args, keypair);
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});
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});
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return promise.then(function (domainKeypair) {
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log("[le/core.js] get certificate");
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args.domainKeypair = domainKeypair;
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//args.registration = domainKey;
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return LeCore.getCertificateAsync({
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debug: args.debug
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, newAuthzUrl: args._acmeUrls.newAuthz
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, newCertUrl: args._acmeUrls.newCert
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, accountKeypair: RSA.import(account.keypair)
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, domainKeypair: domainKeypair
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, domains: args.domains
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, challengeType: args.challengeType
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//
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// IMPORTANT
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//
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// setChallenge and removeChallenge are handed defaults
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// instead of args because getChallenge does not have
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// access to args
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// (args is per-request, defaults is per instance)
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//
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, setChallenge: function (domain, key, value, done) {
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var copy = handlers.merge({ domains: [domain] }, defaults, backendDefaults);
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handlers.tplCopy(copy);
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//args.domains = [domain];
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args.domains = args.domains || [domain];
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if (5 !== handlers.setChallenge.length) {
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done(new Error("handlers.setChallenge receives the wrong number of arguments."
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+ " You must define setChallenge as function (opts, domain, key, val, cb) { }"));
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return;
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}
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handlers.setChallenge(copy, domain, key, value, done);
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}
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, removeChallenge: function (domain, key, done) {
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var copy = handlers.merge({ domains: [domain] }, defaults, backendDefaults);
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handlers.tplCopy(copy);
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if (4 !== handlers.removeChallenge.length) {
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done(new Error("handlers.removeChallenge receives the wrong number of arguments."
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+ " You must define removeChallenge as function (opts, domain, key, cb) { }"));
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return;
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}
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handlers.removeChallenge(copy, domain, key, done);
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}
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}).then(attachCertInfo);
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}).then(function (results) {
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// { cert, chain, fullchain, privkey }
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args.pems = results;
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return backend.setRegistration(args, defaults, handlers);
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});
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}
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function getOrCreateDomainCertificate(args, defaults, handlers) {
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if (args.duplicate) {
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// we're forcing a refresh via 'dupliate: true'
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return getCertificateAsync(args, defaults, handlers);
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}
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return wrapped.fetchAsync(args).then(function (certs) {
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var halfLife = (certs.expiresAt - certs.issuedAt) / 2;
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if (!certs || (Date.now() - certs.issuedAt) > halfLife) {
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// There is no cert available
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// Or the cert is more than half-expired
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return getCertificateAsync(args, defaults, handlers);
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}
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return PromiseA.reject(new Error(
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"[ERROR] Certificate issued at '"
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+ new Date(certs.issuedAt).toISOString() + "' and expires at '"
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+ new Date(certs.expiresAt).toISOString() + "'. Ignoring renewal attempt until half-life at '"
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+ new Date(certs.issuedA + halfLife).toISOString() + "'. Set { duplicate: true } to force."
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));
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});
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}
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// returns 'account' from lib/accounts { meta, regr, keypair, accountId (id) }
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function getOrCreateAcmeAccount(args, defaults, handlers) {
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function log() {
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if (args.debug) {
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console.log.apply(console, arguments);
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}
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}
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return backend.getAccountId(args).then(function (accountId) {
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// Note: the ACME urls are always fetched fresh on purpose
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return getAcmeUrls(args).then(function (urls) {
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args._acmeUrls = urls;
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if (accountId) {
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log('[le/core.js] use account');
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args.accountId = accountId;
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return backend.getAccount(args, handlers);
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} else {
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log('[le/core.js] create account');
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return createAccount(args, handlers);
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}
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});
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});
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}
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var wrapped = {
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registerAsync: function (args) {
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var utils = require('./lib/common');
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var err;
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if (!Array.isArray(args.domains)) {
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return PromiseA.reject(new Error('args.domains should be an array of domains'));
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}
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if (!(args.domains.length && args.domains.every(utils.isValidDomain))) {
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// NOTE: this library can't assume to handle the http loopback
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// (or dns-01 validation may be used)
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// so we do not check dns records or attempt a loopback here
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err = new Error("invalid domain name(s): '" + args.domains + "'");
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err.code = "INVALID_DOMAIN";
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return PromiseA.reject(err);
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}
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var copy = handlers.merge(args, defaults, backendDefaults);
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handlers.tplCopy(copy);
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return getOrCreateAcmeAccount(copy, defaults, handlers).then(function (account) {
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copy.account = account;
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return backend.getOrCreateRenewal(copy).then(function (pyobj) {
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copy.pyobj = pyobj;
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return getOrCreateDomainCertificate(copy, defaults, handlers);
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});
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}).then(function (result) {
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return result;
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}, function (err) {
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return PromiseA.reject(err);
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});
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}
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, getOrCreateAccount: function (args) {
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return createAccount(args, handlers);
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}
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, configureAsync: function (hargs) {
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var copy = handlers.merge(hargs, defaults, backendDefaults);
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handlers.tplCopy(copy);
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return getOrCreateAcmeAccount(copy, defaults, handlers).then(function (account) {
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copy.account = account;
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return backend.getOrCreateRenewal(copy);
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});
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}
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, fetchAsync: function (args) {
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var copy = handlers.merge(args, defaults);
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handlers.tplCopy(copy);
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return backend.fetchAsync(copy).then(attachCertInfo);
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}
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};
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return wrapped;
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};
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