greenlock.js/lib/core.js

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'use strict';
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module.exports.create = function (le) {
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var PromiseA = require('bluebird');
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var utils = require('./utils'); // merge, tplCopy;
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var RSA = PromiseA.promisifyAll(require('rsa-compat').RSA);
var LeCore = PromiseA.promisifyAll(require('letiny-core'));
var crypto = require('crypto');
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var core = {
//
// Helpers
//
getAcmeUrlsAsync: function (args) {
var now = Date.now();
// TODO check response header on request for cache time
if ((now - le._ipc.acmeUrlsUpdatedAt) < 10 * 60 * 1000) {
return PromiseA.resolve(le._ipc.acmeUrls);
}
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return LeCore.getAcmeUrlsAsync(args.server).then(function (data) {
le._ipc.acmeUrlsUpdatedAt = Date.now();
le._ipc.acmeUrls = data;
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return le._ipc.acmeUrls;
});
}
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//
// The Main Enchilada
//
//
// Accounts
//
, accounts: {
registerAsync: function (args) {
return RSA.generateKeypairAsync(args.rsaKeySize, 65537, { public: true, pem: true }).then(function (keypair) {
return LeCore.registerNewAccountAsync({
email: args.email
, newRegUrl: args._acmeUrls.newReg
, agreeToTerms: function (tosUrl, agreeCb) {
if (true === args.agreeTos || tosUrl === args.agreeTos || tosUrl === le.agreeToTerms) {
agreeCb(null, tosUrl);
return;
}
// args.email = email; // already there
// args.domains = domains // already there
args.tosUrl = tosUrl;
le.agreeToTerms(args, agreeCb);
}
, accountKeypair: keypair
, debug: le.debug || args.debug
}).then(function (body) {
// TODO XXX use sha256 (the python client uses md5)
// TODO ssh fingerprint (noted on rsa-compat issues page, I believe)
keypair.publicKeyMd5 = crypto.createHash('md5').update(RSA.exportPublicPem(keypair)).digest('hex');
keypair.publicKeySha256 = crypto.createHash('sha256').update(RSA.exportPublicPem(keypair)).digest('hex');
var accountId = keypair.publicKeyMd5;
var regr = { body: body };
var account = {};
args.accountId = accountId;
account.keypair = keypair;
account.regr = regr;
account.accountId = accountId;
account.id = accountId;
args.account = account;
return le.store.accounts.setAsync(args, account).then(function () {
return account;
});
});
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});
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}
// getOrCreateAcmeAccount
, getAsync: function (args) {
return core.accounts.checkAsync(args).then(function (account) {
if (account) {
return le.store.accounts.checkAccount(args);
} else {
return core.accounts.registerAsync(args);
}
});
}
, checkAsync: function (args) {
return le.store.accounts.checkAccountId(args).then(function (accountId) {
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if (!accountId) {
return null;
}
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args.accountId = accountId;
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// Note: the ACME urls are always fetched fresh on purpose
return core.getAcmeUrlsAsync(args).then(function (urls) {
args._acmeUrls = urls;
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// return le.store.accounts.checkAccountId(args).then(function (accountId) {
return le.store.accounts.checkAsync(args);
});
});
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}
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}
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, certificates: {
registerAsync: function (args) {
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var err;
var copy = utils.merge(args, le);
args = utils.tplCopy(copy);
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if (!Array.isArray(args.domains)) {
return PromiseA.reject(new Error('args.domains should be an array of domains'));
}
if (!(args.domains.length && args.domains.every(utils.isValidDomain))) {
// NOTE: this library can't assume to handle the http loopback
// (or dns-01 validation may be used)
// so we do not check dns records or attempt a loopback here
err = new Error("invalid domain name(s): '" + args.domains + "'");
err.code = "INVALID_DOMAIN";
return PromiseA.reject(err);
}
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return core.accounts.getAsync(copy).then(function (account) {
copy.account = account;
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//var account = args.account;
var keypairOpts = { public: true, pem: true };
var promise = le.store.certificates.checkKeypairAsync(args).then(function (keypair) {
return RSA.import(keypair);
}, function (/*err*/) {
return RSA.generateKeypairAsync(args.rsaKeySize, 65537, keypairOpts).then(function (keypair) {
keypair.privateKeyPem = RSA.exportPrivatePem(keypair);
keypair.privateKeyJwk = RSA.exportPrivateJwk(keypair);
return le.store.certificates.setKeypairAsync(args, keypair);
});
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});
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return promise.then(function (domainKeypair) {
args.domainKeypair = domainKeypair;
//args.registration = domainKey;
return LeCore.getCertificateAsync({
debug: args.debug || le.debug
, newAuthzUrl: args._acmeUrls.newAuthz
, newCertUrl: args._acmeUrls.newCert
, accountKeypair: RSA.import(account.keypair)
, domainKeypair: domainKeypair
, domains: args.domains
, challengeType: args.challengeType
//
// IMPORTANT
//
// setChallenge and removeChallenge are handed defaults
// instead of args because getChallenge does not have
// access to args
// (args is per-request, defaults is per instance)
//
, setChallenge: function (domain, key, value, done) {
var copy = utils.merge({ domains: [domain] }, le);
utils.tplCopy(copy);
//args.domains = [domain];
args.domains = args.domains || [domain];
if (5 !== le.challenger.set.length) {
done(new Error("le.challenger.set receives the wrong number of arguments."
+ " You must define setChallenge as function (opts, domain, key, val, cb) { }"));
return;
}
le.challenger.set(copy, domain, key, value, done);
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}
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, removeChallenge: function (domain, key, done) {
var copy = utils.merge({ domains: [domain] }, le);
utils.tplCopy(copy);
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if (4 !== le.challenger.remove.length) {
done(new Error("le.challenger.remove receives the wrong number of arguments."
+ " You must define removeChallenge as function (opts, domain, key, cb) { }"));
return;
}
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le.challenger.remove(copy, domain, key, done);
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}
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}).then(utils.attachCertInfo);
}).then(function (results) {
// { cert, chain, fullchain, privkey }
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args.pems = results;
return le.store.certificates.setAsync(args).then(function () {
return results;
});
});
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});
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}
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, checkAsync: function (args) {
var copy = utils.merge(args, le);
utils.tplCopy(copy);
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// returns pems
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return le.store.certificates.checkAsync(copy).then(utils.attachCertInfo);
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}
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, getAsync: function (args) {
var copy = utils.merge(args, le);
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args = utils.tplCopy(copy);
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if (args.duplicate) {
// we're forcing a refresh via 'dupliate: true'
return core.certificates.registerAsync(args);
}
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return core.certificates.checkAsync(args).then(function (certs) {
var renewableAt = certs.expiresAt - le.renewWithin;
//var halfLife = (certs.expiresAt - certs.issuedAt) / 2;
//var renewable = (Date.now() - certs.issuedAt) > halfLife;
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if (!certs || Date.now() >= renewableAt) {
// There is no cert available
// Or the cert is more than half-expired
return core.certificates.registerAsync(args);
}
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return PromiseA.reject(new Error(
"[ERROR] Certificate issued at '"
+ new Date(certs.issuedAt).toISOString() + "' and expires at '"
+ new Date(certs.expiresAt).toISOString() + "'. Ignoring renewal attempt until half-life at '"
+ new Date(renewableAt).toISOString() + "'. Set { duplicate: true } to force."
));
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}).then(function (results) {
// returns pems
return results;
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});
}
}
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};
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return core;
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};