447 lines
16 KiB
JavaScript
447 lines
16 KiB
JavaScript
'use strict';
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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 promisifyAll(obj) {
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var aobj = {};
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Object.keys(obj).forEach(function (key) {
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if ('function' === typeof obj[key]) {
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aobj[key] = obj[key];
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aobj[key + 'Async'] = util.promisify(obj[key]);
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}
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});
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return aobj;
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}
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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("[greenlock/lib/core.js]");
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console.log.apply(console, args);
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}
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}
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module.exports.create = function (gl) {
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var utils = require('./utils');
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var RSA = promisifyAll(require('rsa-compat').RSA);
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var log = gl.log || _log; // allow custom log
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var pendingRegistrations = {};
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var core = {
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//
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// Helpers
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//
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getAcmeUrlsAsync: function (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 - gl._ipc.acmeUrlsUpdatedAt) < 10 * 60 * 1000) {
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return PromiseA.resolve(gl._ipc.acmeUrls);
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}
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return gl.acme.getAcmeUrlsAsync(args.server).then(function (data) {
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gl._ipc.acmeUrlsUpdatedAt = Date.now();
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gl._ipc.acmeUrls = data;
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return gl._ipc.acmeUrls;
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});
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}
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//
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// The Main Enchilada
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//
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//
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// Accounts
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//
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, accounts: {
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// Accounts
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registerAsync: function (args) {
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var err;
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var copy = utils.merge(args, gl);
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var disagreeTos;
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args = utils.tplCopy(copy);
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disagreeTos = (!args.agreeTos && 'undefined' !== typeof args.agreeTos);
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if (!args.email || disagreeTos || (parseInt(args.rsaKeySize, 10) < 2048)) {
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err = new Error(
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"In order to register an account both 'email' and 'agreeTos' must be present"
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+ " and 'rsaKeySize' must be 2048 or greater."
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);
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err.code = 'E_ARGS';
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return PromiseA.reject(err);
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}
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return utils.testEmail(args.email).then(function () {
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var keypairOpts = { public: true, pem: true };
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var promise = gl.store.accounts.checkKeypairAsync(args).then(function (keypair) {
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if (keypair) {
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return RSA.import(keypair);
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}
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if (args.accountKeypair) {
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return gl.store.accounts.setKeypairAsync(args, RSA.import(args.accountKeypair));
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}
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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.publicKeyPem = RSA.exportPublicPem(keypair);
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keypair.privateKeyJwk = RSA.exportPrivateJwk(keypair);
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return gl.store.accounts.setKeypairAsync(args, keypair);
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});
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});
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return promise.then(function (keypair) {
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// Note: the ACME urls are always fetched fresh on purpose
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// TODO is this the right place for this?
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return core.getAcmeUrlsAsync(args).then(function (urls) {
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args._acmeUrls = urls;
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return gl.acme.registerNewAccountAsync({
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email: args.email
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, newRegUrl: args._acmeUrls.newReg
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, newAuthzUrl: args._acmeUrls.newAuthz
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, agreeToTerms: function (tosUrl, agreeCb) {
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if (true === args.agreeTos || tosUrl === args.agreeTos || tosUrl === gl.agreeToTerms) {
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agreeCb(null, tosUrl);
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return;
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}
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// args.email = email; // already there
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// args.domains = domains // already there
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args.tosUrl = tosUrl;
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gl.agreeToTerms(args, agreeCb);
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}
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, accountKeypair: keypair
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, debug: gl.debug || args.debug
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}).then(function (receipt) {
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var reg = {
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keypair: keypair
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, receipt: receipt
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, email: args.email
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, newRegUrl: args._acmeUrls.newReg
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, newAuthzUrl: args._acmeUrls.newAuthz
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};
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// TODO move templating of arguments to right here?
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return gl.store.accounts.setAsync(args, reg).then(function (account) {
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// should now have account.id and account.accountId
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args.account = account;
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args.accountId = account.id;
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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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});
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}
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// Accounts
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, getAsync: function (args) {
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return core.accounts.checkAsync(args).then(function (account) {
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if (account) {
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return account;
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} else {
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return core.accounts.registerAsync(args);
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}
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});
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}
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// Accounts
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, checkAsync: function (args) {
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var requiredArgs = ['accountId', 'email', 'domains', 'domain'];
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if (!requiredArgs.some(function (key) { return -1 !== Object.keys(args).indexOf(key); })) {
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return PromiseA.reject(new Error(
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"In order to register or retrieve an account one of '" + requiredArgs.join("', '") + "' must be present"
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));
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}
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var copy = utils.merge(args, gl);
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args = utils.tplCopy(copy);
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return gl.store.accounts.checkAsync(args).then(function (account) {
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if (!account) {
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return null;
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}
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args.account = account;
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args.accountId = account.id;
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return account;
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});
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}
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}
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, certificates: {
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// Certificates
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registerAsync: function (args) {
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var err;
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var challengeDefaults = gl['_challengeOpts_' + (args.challengeType || gl.challengeType)] || {};
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var copy = utils.merge(args, challengeDefaults || {});
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copy = utils.merge(copy, gl);
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args = utils.tplCopy(copy);
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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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// If a previous request to (re)register a certificate is already underway we need
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// to return the same promise created before rather than registering things twice.
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// I'm not 100% sure how to properly handle the case where someone registers domain
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// lists with some but not all elements common, nor am I sure that's even a case that
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// is allowed to happen anyway. But for now we act like the list is completely the
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// same if any elements are the same.
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var promise;
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args.domains.some(function (name) {
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if (pendingRegistrations.hasOwnProperty(name)) {
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promise = pendingRegistrations[name];
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return true;
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}
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});
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if (promise) {
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return promise;
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}
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promise = core.certificates._runRegistration(args);
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// Now that the registration is actually underway we need to make sure any subsequent
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// registration attempts return the same promise until it is completed (but not after
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// it is completed).
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args.domains.forEach(function (name) {
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pendingRegistrations[name] = promise;
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});
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function clearPending() {
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args.domains.forEach(function (name) {
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delete pendingRegistrations[name];
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});
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}
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promise.then(clearPending, clearPending);
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return promise;
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}
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, _runRegistration: function (args) {
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// TODO renewal cb
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// accountId and or email
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return core.accounts.getAsync(args).then(function (account) {
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args.account = account;
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var promise = gl.store.certificates.checkKeypairAsync(args).then(function (keypair) {
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if (keypair) {
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return RSA.import(keypair);
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}
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if (args.domainKeypair) {
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return gl.store.certificates.setKeypairAsync(args, RSA.import(args.domainKeypair));
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}
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var keypairOpts = { public: true, pem: true };
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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.publicKeyPem = RSA.exportPublicPem(keypair);
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keypair.privateKeyJwk = RSA.exportPrivateJwk(keypair);
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return gl.store.certificates.setKeypairAsync(args, keypair);
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});
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});
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return promise.then(function (domainKeypair) {
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args.domainKeypair = domainKeypair;
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//args.registration = domainKey;
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// Note: the ACME urls are always fetched fresh on purpose
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// TODO is this the right place for this?
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return core.getAcmeUrlsAsync(args).then(function (urls) {
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args._acmeUrls = urls;
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var certReq = {
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debug: args.debug || gl.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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//
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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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// Each of these fires individually for each domain,
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// even though the certificate on the whole may have many domains
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//
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certReq.setChallenge = function (domain, key, value, done) {
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log(args.debug, "setChallenge called for '" + domain + "'");
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var copy = utils.merge({ domains: [domain] }, args);
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copy = utils.merge(copy, gl);
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utils.tplCopy(copy);
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// TODO need to save challengeType
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gl.challenges[args.challengeType].set(copy, domain, key, value, done);
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};
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certReq.removeChallenge = function (domain, key, done) {
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log(args.debug, "removeChallenge called for '" + domain + "'");
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var copy = utils.merge({ domains: [domain] }, gl);
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utils.tplCopy(copy);
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gl.challenges[args.challengeType].remove(copy, domain, key, done);
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};
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log(args.debug, 'calling greenlock.acme.getCertificateAsync', certReq.domains);
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return gl.acme.getCertificateAsync(certReq).then(utils.attachCertInfo);
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});
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}).then(function (results) {
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// { cert, chain, privkey /*TODO, subject, altnames, issuedAt, expiresAt */ }
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args.certs = results;
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// args.pems is deprecated
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args.pems = results;
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return gl.store.certificates.setAsync(args).then(function () {
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return results;
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});
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});
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});
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}
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// Certificates
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, renewAsync: function (args, certs) {
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var renewableAt = core.certificates._getRenewableAt(args, certs);
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var err;
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//var halfLife = (certs.expiresAt - certs.issuedAt) / 2;
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//var renewable = (Date.now() - certs.issuedAt) > halfLife;
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log(args.debug, "(Renew) Expires At", new Date(certs.expiresAt).toISOString());
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log(args.debug, "(Renew) Renewable At", new Date(renewableAt).toISOString());
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if (!args.duplicate && Date.now() < renewableAt) {
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err = 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 '"
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+ new Date(renewableAt).toISOString() + "'. Set { duplicate: true } to force."
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);
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err.code = 'E_NOT_RENEWABLE';
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return PromiseA.reject(err);
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}
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// Either the cert has entered its renewal period
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// or we're forcing a refresh via 'dupliate: true'
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log(args.debug, "Renewing!");
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// TODO fetch email address / accountId (accountBydomain) if not present
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// store.config.getAsync(args.domains).then(function (config) { /*...*/ });
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if (!args.domains || (args.domains.length || 0) <= 2) {
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// this is a renewal, therefore we should renewal ALL of the domains
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// associated with this certificate, unless args.domains is a list larger
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// than example.com,www.example.com
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// TODO check www. prefix
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args.domains = certs.altnames;
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if (Array.isArray(certs.domains) && certs.domains.length) {
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args.domains = certs.domains;
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}
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}
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return core.certificates.registerAsync(args);
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}
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// Certificates
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, _isRenewable: function (args, certs) {
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var renewableAt = core.certificates._getRenewableAt(args, certs);
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log(args.debug, "Check Expires At", new Date(certs.expiresAt).toISOString());
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log(args.debug, "Check Renewable At", new Date(renewableAt).toISOString());
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if (args.duplicate || Date.now() >= renewableAt) {
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log(args.debug, "certificates are renewable");
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return true;
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}
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return false;
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}
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, _getRenewableAt: function (args, certs) {
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return certs.expiresAt - (args.renewWithin || gl.renewWithin);
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}
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, checkAsync: function (args) {
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var copy = utils.merge(args, gl);
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utils.tplCopy(copy);
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// returns pems
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return gl.store.certificates.checkAsync(copy).then(function (cert) {
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if (cert) {
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log(args.debug, 'checkAsync found existing certificates');
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return utils.attachCertInfo(cert);
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}
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log(args.debug, 'checkAsync failed to find certificates');
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return null;
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});
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}
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// Certificates
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, getAsync: function (args) {
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var copy = utils.merge(args, gl);
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args = utils.tplCopy(copy);
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return core.certificates.checkAsync(args).then(function (certs) {
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if (!certs) {
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// There is no cert available
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if (args.communityMember && !args._communityMemberAdded) {
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try {
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require('./community').add(args._communityPackage + ' reg', args.email, args.domains);
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} catch(e) { /* ignore */ }
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args._communityMemberAdded = true;
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}
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return core.certificates.registerAsync(args);
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}
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if (core.certificates._isRenewable(args, certs)) {
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// it's time to renew the available cert
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if (args.communityMember && !args._communityMemberAdded) {
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try {
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require('./community').add(args._communityPackage + ' renew', args.email, args.domains);
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} catch(e) { /* ignore */ }
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args._communityMemberAdded = true;
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}
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certs.renewing = core.certificates.renewAsync(args, certs);
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if (args.waitForRenewal) {
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return certs.renewing;
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}
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}
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// return existing unexpired (although potentially stale) certificates when available
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// there will be an additional .renewing property if the certs are being asynchronously renewed
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return certs;
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}).then(function (results) {
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// returns pems
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return results;
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});
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}
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}
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};
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return core;
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};
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