greenlock.js/lib/core.js

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'use strict';
var PromiseA = require('bluebird');
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var RSA = PromiseA.promisifyAll(require('rsa-compat').RSA);
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var mkdirpAsync = PromiseA.promisify(require('mkdirp'));
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var path = require('path');
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var fs = PromiseA.promisifyAll(require('fs'));
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var sfs = require('safe-replace');
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var LE = require('../');
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var LeCore = PromiseA.promisifyAll(require('letiny-core'));
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var leCrypto = PromiseA.promisifyAll(LeCore.leCrypto);
var Accounts = require('./accounts');
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var merge = require('./common').merge;
var tplCopy = require('./common').tplCopy;
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var fetchFromConfigLiveDir = require('./common').fetchFromDisk;
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var ipc = {}; // in-process cache
function getAcmeUrls(args) {
var now = Date.now();
// TODO check response header on request for cache time
if ((now - ipc.acmeUrlsUpdatedAt) < 10 * 60 * 1000) {
return PromiseA.resolve(ipc.acmeUrls);
}
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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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function readRenewalConfig(args) {
var pyconf = PromiseA.promisifyAll(require('pyconf'));
return pyconf.readFileAsync(args.renewalPath).then(function (pyobj) {
return pyobj;
}, function () {
return pyconf.readFileAsync(path.join(__dirname, 'renewal.conf.tpl')).then(function (pyobj) {
return pyobj;
});
});
}
function writeRenewalConfig(args) {
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//console.log('args');
//console.log(args);
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var pyobj = args.pyobj;
pyobj.checkpoints = parseInt(pyobj.checkpoints, 10) || 0;
var pyconf = PromiseA.promisifyAll(require('pyconf'));
var liveDir = args.liveDir || path.join(args.configDir, 'live', args.domains[0]);
var certPath = args.certPath || pyobj.cert || path.join(liveDir, 'cert.pem');
var fullchainPath = args.fullchainPath || pyobj.fullchain || path.join(liveDir, 'fullchain.pem');
var chainPath = args.chainPath || pyobj.chain || path.join(liveDir, 'chain.pem');
var privkeyPath = args.privkeyPath || pyobj.privkey
//|| args.domainPrivateKeyPath || args.domainKeyPath || pyobj.keyPath
|| path.join(liveDir, 'privkey.pem');
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if (args.debug) {
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console.log('################ privkeyPath ################');
console.log(privkeyPath);
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}
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var updates = {
account: args.account.id
, configDir: args.configDir
, domains: args.domains
, email: args.email
, tos: args.agreeTos && true
// yes, it's an array. weird, right?
, webrootPath: args.webrootPath && [args.webrootPath] || []
, server: args.server || args.acmeDiscoveryUrl
, privkey: privkeyPath
, fullchain: fullchainPath
, cert: certPath
, chain: chainPath
, http01Port: args.http01Port
, keyPath: args.domainPrivateKeyPath || args.privkeyPath
, rsaKeySize: args.rsaKeySize
, checkpoints: pyobj.checkpoints
/* // TODO XXX what's the deal with these? they don't make sense
// are they just old junk? or do they have a meaning that I don't know about?
, fullchainPath: path.join(args.configDir, 'chain.pem')
, certPath: path.join(args.configDir, 'cert.pem')
, chainPath: path.join(args.configDir, 'chain.pem')
*/ // TODO XXX end
, workDir: args.workDir
, logsDir: args.logsDir
};
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// final section is completely dynamic
// :hostname = :webroot_path
args.domains.forEach(function (hostname) {
updates[hostname] = args.webrootPath;
});
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// must write back to the original pyobject or
// annotations will be lost
Object.keys(updates).forEach(function (key) {
pyobj[key] = updates[key];
});
return mkdirpAsync(path.dirname(args.renewalPath)).then(function () {
return pyconf.writeFileAsync(args.renewalPath, pyobj);
}).then(function () {
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// NOTE
// writing twice seems to causes a bug,
// so instead we re-read the file from the disk
return pyconf.readFileAsync(args.renewalPath);
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});
}
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function getOrCreateRenewal(args) {
return readRenewalConfig(args).then(function (pyobj) {
var minver = pyobj.checkpoints >= 0;
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args.pyobj = pyobj;
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if (!minver) {
args.checkpoints = 0;
pyobj.checkpoints = 0;
return writeRenewalConfig(args);
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}
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// args.account.id = pyobj.account
// args.configDir = args.configDir || pyobj.configDir;
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args.checkpoints = pyobj.checkpoints;
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args.agreeTos = (args.agreeTos || pyobj.tos) && true;
args.email = args.email || pyobj.email;
args.domains = args.domains || pyobj.domains;
// yes, it's an array. weird, right?
args.webrootPath = args.webrootPath || pyobj.webrootPath[0];
args.server = args.server || args.acmeDiscoveryUrl || pyobj.server;
args.certPath = args.certPath || pyobj.cert;
args.privkeyPath = args.privkeyPath || pyobj.privkey;
args.chainPath = args.chainPath || pyobj.chain;
args.fullchainPath = args.fullchainPath || pyobj.fullchain;
//, workDir: args.workDir
//, logsDir: args.logsDir
args.rsaKeySize = args.rsaKeySize || pyobj.rsaKeySize;
args.http01Port = args.http01Port || pyobj.http01Port;
args.domainKeyPath = args.domainPrivateKeyPath || args.domainKeyPath || args.keyPath || pyobj.keyPath;
return writeRenewalConfig(args);
});
}
function writeCertificateAsync(args, defaults, handlers) {
if (args.debug) {
console.log("got certificate!");
}
var obj = args.pyobj;
var result = args.pems;
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result.fullchain = result.cert + '\n' + (result.chain || result.ca);
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obj.checkpoints = parseInt(obj.checkpoints, 10) || 0;
var liveDir = args.liveDir || path.join(args.configDir, 'live', args.domains[0]);
var certPath = args.certPath || obj.cert || path.join(liveDir, 'cert.pem');
var fullchainPath = args.fullchainPath || obj.fullchain || path.join(liveDir, 'fullchain.pem');
var chainPath = args.chainPath || obj.chain || path.join(liveDir, 'chain.pem');
var privkeyPath = args.privkeyPath || obj.privkey
//|| args.domainPrivateKeyPath || args.domainKeyPath || obj.keyPath
|| path.join(liveDir, 'privkey.pem');
if (args.debug) {
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console.log('[LE] privkeyPath', privkeyPath);
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}
var archiveDir = args.archiveDir || path.join(args.configDir, 'archive', args.domains[0]);
var checkpoints = obj.checkpoints.toString();
var certArchive = path.join(archiveDir, 'cert' + checkpoints + '.pem');
var fullchainArchive = path.join(archiveDir, 'fullchain' + checkpoints + '.pem');
var chainArchive = path.join(archiveDir, 'chain'+ checkpoints + '.pem');
var privkeyArchive = path.join(archiveDir, 'privkey' + checkpoints + '.pem');
return mkdirpAsync(archiveDir).then(function () {
return PromiseA.all([
sfs.writeFileAsync(certArchive, result.cert, 'ascii')
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, sfs.writeFileAsync(chainArchive, (result.chain || result.ca), 'ascii')
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, sfs.writeFileAsync(fullchainArchive, result.fullchain, 'ascii')
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, sfs.writeFileAsync(
privkeyArchive
// TODO nix args.key, args.domainPrivateKeyPem ??
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, (result.privkey || result.key) || RSA.exportPrivateKey(args.domainKeypair)
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, 'ascii'
)
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]);
}).then(function () {
return mkdirpAsync(liveDir);
}).then(function () {
return PromiseA.all([
sfs.writeFileAsync(certPath, result.cert, 'ascii')
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, sfs.writeFileAsync(chainPath, (result.chain || result.ca), 'ascii')
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, sfs.writeFileAsync(fullchainPath, result.fullchain, 'ascii')
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, sfs.writeFileAsync(
privkeyPath
// TODO nix args.key, args.domainPrivateKeyPem ??
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, (result.privkey || result.key) || RSA.exportPrivateKey(args.domainKeypair)
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, 'ascii'
)
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]);
}).then(function () {
obj.checkpoints += 1;
args.checkpoints += 1;
return writeRenewalConfig(args);
}).then(function () {
return {
certPath: certPath
, chainPath: chainPath
, fullchainPath: fullchainPath
, privkeyPath: privkeyPath
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// TODO nix keypair
, keypair: args.domainKeypair
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// TODO nix args.key, args.domainPrivateKeyPem ??
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// some ambiguity here...
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, privkey: (result.privkey || result.key) || RSA.exportPrivateKey(args.domainKeypair)
, fullchain: result.fullchain || (result.cert + '\n' + result.chain)
, chain: (result.chain || result.ca)
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// especially this one... might be cert only, might be fullchain
, cert: result.cert
, issuedAt: Date.now()
, lifetime: defaults.lifetime || handlers.lifetime
};
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});
}
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function getCertificateAsync(args, defaults, handlers) {
var account = args.account;
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var promise;
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var keypairOpts = { public: true, pem: true };
if (!args.domainKeyPath) {
// TODO use default path ???
promise = RSA.generateKeypairAsync(args.rsaKeySize, 65537, keypairOpts);
}
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if (args.domainKeyPath) {
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promise = fs.readFileAsync(args.domainKeyPath, 'ascii').then(function (pem) {
return RSA.import({ privateKeyPem: pem });
}, function (err) {
return RSA.generateKeypairAsync(args.rsaKeySize, 65537, keypairOpts).then(function (keypair) {
return fs.writeFileAsync(args.domainKeyPath, keypair.privateKeyPem, 'ascii');
});
});
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}
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return promise.then(function (domainKeypair) {
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if (args.debug) {
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console.log("[letsencrypt/lib/core.js] get certificate");
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}
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args.domainKeypair = domainKeypair;
//args.registration = domainKey;
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return LeCore.getCertificateAsync({
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debug: args.debug
, 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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//
// 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)
//
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, setChallenge: function (domain, key, value, done) {
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var copy = merge(defaults, { domains: [domain] });
tplCopy(copy);
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args.domains = [domain];
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args.webrootPath = args.webrootPath;
if (4 === handlers.setChallenge.length) {
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handlers.setChallenge(copy, key, value, done);
}
else if (5 === handlers.setChallenge.length) {
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handlers.setChallenge(copy, domain, key, value, done);
}
else {
done(new Error("handlers.setChallenge receives the wrong number of arguments"));
}
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}
, removeChallenge: function (domain, key, done) {
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var copy = merge(defaults, { domains: [domain] });
tplCopy(copy);
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if (3 === handlers.removeChallenge.length) {
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handlers.removeChallenge(copy, key, done);
}
else if (4 === handlers.removeChallenge.length) {
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handlers.removeChallenge(copy, domain, key, done);
}
else {
done(new Error("handlers.removeChallenge receives the wrong number of arguments"));
}
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}
});
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}).then(function (results) {
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// { cert, chain, fullchain, privkey }
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args.pems = results;
return writeCertificateAsync(args, defaults, handlers);
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});
}
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function getOrCreateDomainCertificate(args, defaults, handlers) {
return fetchFromConfigLiveDir(args).then(function (certs) {
// if nothing, register and save
// if something, check date (don't register unless 30+ days)
// if good, don't bother registering
// (but if we get to the point that we're actually calling
// this function, that shouldn't be the case, right?)
//console.log(certs);
if (!certs) {
// no certs, seems like a good time to get some
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return getCertificateAsync(args, defaults, handlers);
}
else if (certs.issuedAt > (27 * 24 * 60 * 60 * 1000)) {
// cert is at least 27 days old we can renew that
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return getCertificateAsync(args, defaults, handlers);
}
else if (args.duplicate) {
// YOLO! I be gettin' fresh certs 'erday! Yo!
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return getCertificateAsync(args, defaults, handlers);
}
else {
console.warn('[WARN] Ignoring renewal attempt for certificate less than 27 days old. Use args.duplicate to force.');
// We're happy with what we have
return certs;
}
});
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}
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// returns 'account' from lib/accounts { meta, regr, keypair, accountId (id) }
function getOrCreateAcmeAccount(args, defaults, handlers) {
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var pyconf = PromiseA.promisifyAll(require('pyconf'));
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return pyconf.readFileAsync(args.renewalPath).then(function (renewal) {
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var accountId = renewal.account;
renewal = renewal.account;
return accountId;
}, function (err) {
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if ("ENOENT" === err.code) {
if (args.debug) {
console.log("[LE] try email");
}
return Accounts.getAccountIdByEmail(args, handlers);
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}
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return PromiseA.reject(err);
}).then(function (accountId) {
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// Note: the ACME urls are always fetched fresh on purpose
return getAcmeUrls(args).then(function (urls) {
args._acmeUrls = urls;
if (accountId) {
if (args.debug) {
console.log('[LE] use account');
}
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args.accountId = accountId;
return Accounts.getAccount(args, handlers);
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} else {
if (args.debug) {
console.log('[LE] create account');
}
return Accounts.createAccount(args, handlers);
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}
});
}).then(function (account) {
/*
if (renewal.account !== account) {
// the account has become corrupt, re-register
return;
}
*/
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if (args.debug) {
console.log('[LE] created account');
}
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return account;
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});
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/*
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return fs.readdirAsync(accountsDir, function (nodes) {
return PromiseA.all(nodes.map(function (node) {
var reMd5 = /[a-f0-9]{32}/i;
if (reMd5.test(node)) {
}
}));
});
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*/
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}
module.exports.create = function (defaults, handlers) {
defaults.server = defaults.server || LE.liveServer;
var wrapped = {
registerAsync: function (args) {
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var copy;
// TODO move these defaults elsewhere?
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//args.renewalDir = args.renewalDir || ':config/renewal/';
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args.renewalPath = args.renewalPath || ':config/renewal/:hostname.conf';
// Note: the /directory is part of the server url and, as such, bleeds into the pathname
// So :config/accounts/:server/directory is *incorrect*, but the following *is* correct:
args.accountsDir = args.accountsDir || ':config/accounts/:server';
copy = merge(args, defaults);
tplCopy(copy);
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if (copy.debug) {
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console.log('[LE DEBUG] reg domains', args.domains);
}
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var url = require('url');
var acmeLocation = url.parse(copy.server);
var acmeHostpath = path.join(acmeLocation.hostname, acmeLocation.pathname);
copy.renewalPath = copy.renewalPath || path.join(copy.configDir, 'renewal', copy.domains[0] + '.conf');
copy.accountsDir = copy.accountsDir || path.join(copy.configDir, 'accounts', acmeHostpath);
return getOrCreateAcmeAccount(copy, defaults, handlers).then(function (account) {
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copy.account = account;
return getOrCreateRenewal(copy).then(function (pyobj) {
copy.pyobj = pyobj;
return getOrCreateDomainCertificate(copy, defaults, handlers);
});
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}).then(function (result) {
return result;
}, function (err) {
console.error('[DEBUG le/lib/core.js] registeryAsync err');
console.error(err && err.stack || err);
return PromiseA.reject(err);
});
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}
, fetchAsync: function (args) {
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var copy = merge(args, defaults);
tplCopy(copy);
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if (args.debug) {
console.log('[LE DEBUG] fetch domains', copy);
}
return fetchFromConfigLiveDir(copy, defaults);
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}
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, configureAsync: function (hargs) {
hargs.renewalPath = hargs.renewalPath || ':config/renewal/:hostname.conf';
var copy = merge(hargs, defaults);
tplCopy(copy);
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//console.log('[LE] configureAsync copy');
//console.log(hargs);
//console.log(copy);
return getOrCreateAcmeAccount(copy, defaults, handlers).then(function (account) {
copy.account = account;
return getOrCreateRenewal(copy);
});
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}
, getConfigAsync: function (hargs) {
hargs.renewalPath = hargs.renewalPath || ':config/renewal/:hostname.conf';
hargs.domains = [];
var copy = merge(hargs, defaults);
tplCopy(copy);
if (copy.debug) {
console.log('[LE DEBUG] get configs', copy);
}
return readRenewalConfig(copy).then(function (pyobj) {
var exists = pyobj.checkpoints >= 0;
if (!exists) {
return null;
}
return pyobj;
});
}
, getConfigsAsync: function (hargs) {
hargs.renewalDir = hargs.renewalDir || ':config/renewal/';
hargs.renewalPath = hargs.renewalPath || ':config/renewal/:hostname.conf';
hargs.domains = [];
var copy = merge(hargs, defaults);
tplCopy(copy);
if (copy.debug) {
console.log('[LE DEBUG] get configs', copy);
}
return fs.readdirAsync(copy.renewalDir).then(function (nodes) {
nodes = nodes.filter(function (node) {
return /^[a-z0-9]+.*\.conf$/.test(node);
});
return PromiseA.all(nodes.map(function (node) {
copy.domains = [node.replace(/\.conf$/, '')];
return wrapped.getConfigAsync(copy);
}));
});
}
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};
return wrapped;
};