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Code Issues 27 Releases Wiki Activity

merge ursa/forge branch (no python)

This commit is contained in:
AJ ONeal 2015-12-16 04:55:35 -08:00
parent 5828e4f4ef 2bc1403200
commit fdfd7cb6c2
14 changed files with 699 additions and 253 deletions
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143
README.md
View File

@ -24,40 +24,23 @@ Install
npm install --save letsencrypt
```
Right now this uses [`letsencrypt-python`](https://github.com/Daplie/node-letsencrypt-python),
but it's built to be able to use a node-only javascript version (in progress).
```bash
# install the python client (takes 2 minutes normally, 20 on a raspberry pi)
git clone https://github.com/letsencrypt/letsencrypt
pushd letsencrypt
./letsencrypt-auto
```
### Great News:
The pure node `ursa` and `forge` branches are almost complete (and completely compatible with the official client directory and file structure)! `ursa` will be fast and work on Raspberry Pi. `forge` will be slow, but it will work on Windows.
* https://github.com/Daplie/node-letsencrypt/tree/ursa
Ping [@coolaj86](https://coolaj86.com) if you'd like to help.
Usage
=====
Here's a simple snippet:
See [letsencrypt-cli](https://github.com/Daplie/node-letsencrypt-cli)
and [letsencrypt-express](https://github.com/Daplie/letsencrypt-express)
```javascript
var config = require('./examples/config-minimal');
config.le.webrootPath = __dirname + '/tests/acme-challenge';
var le = require('letsencrypt').create(config.backend, config.le);
var le = require('letsencrypt').create(config.le);
le.register({
agreeTos: true
, domains: ['example.com'] // CHANGE TO YOUR DOMAIN
, email: 'user@email.com' // CHANGE TO YOUR EMAIL
, standalone: true
}, function (err) {
if (err) {
console.error('[Error]: node-letsencrypt/examples/standalone');
@ -265,52 +248,27 @@ and then make sure to set all of of the following to a directory that your user
* `webrootPath`
* `configDir`
* `workDir` (python backend only)
* `logsDir` (python backend only)
API
===
```javascript
LetsEncrypt.create(backend, bkDefaults, handlers) // wraps a given "backend" (the python client)
LetsEncrypt.stagingServer // string of staging server for testing
LetsEncrypt.init(leConfig, handlers) // wraps a given
LetsEncrypt.create(backend, leConfig, handlers) // wraps a given "backend" (the python or node client)
LetsEncrypt.stagingServer // string of staging server for testing
le.middleware() // middleware for serving webrootPath to /.well-known/acme-challenge
le.sniCallback(hostname, function (err, tlsContext) {}) // uses fetch (below) and formats for https.SNICallback
le.register({ domains, email, agreeTos, ... }, cb) // registers or renews certs for a domain
le.fetch({domains, email, agreeTos, ... }, cb) // fetches certs from in-memory cache, occasionally refreshes from disk
le.validate(domains, cb) // do some sanity checks before attempting to register
le.registrationFailureCallback(err, args, certInfo, cb) // called when registration fails (not implemented yet)
le.middleware() // middleware for serving webrootPath to /.well-known/acme-challenge
le.sniCallback(hostname, function (err, tlsContext) {}) // uses fetch (below) and formats for https.SNICallback
le.register({ domains, email, agreeTos, ... }, cb) // registers or renews certs for a domain
le.fetch({domains, email, agreeTos, ... }, cb) // fetches certs from in-memory cache, occasionally refreshes from disk
le.validate(domains, cb) // do some sanity checks before attempting to register
le.registrationFailureCallback(err, args, certInfo, cb) // called when registration fails (not implemented yet)
```
### `LetsEncrypt.create(backend, bkDefaults, handlers)`
### `LetsEncrypt.create(backend, leConfig, handlers)`
#### backend
Currently only `letsencrypt-python` is supported, but we plan to work on
native javascript support in February or so (when ECDSA keys are available).
If you'd like to help with that, see **how to write a backend** below and also
look at the wrapper `backend-python.js`.
**Example**:
```javascript
{ fetch: function (args, cb) {
// cb(err) when there is an actual error (db, fs, etc)
// cb(null, null) when the certificate was NOT available on disk
// cb(null, { cert: '<fullchain.pem>', key: '<privkey.pem>', renewedAt: 0, duration: 0 }) cert + meta
}
, register: function (args, setChallenge, cb) {
// setChallenge(hostnames, key, value, cb) when a challenge needs to be set
// cb(err) when there is an error
// cb(null, null) when the registration is successful, but fetch still needs to be called
// cb(null, cert /*see above*/) if registration can easily return the same as fetch
}
}
```
#### bkDefaults
#### leConfig
The arguments passed here (typically `webpathRoot`, `configDir`, etc) will be merged with
any `args` (typically `domains`, `email`, and `agreeTos`) and passed to the backend whenever
@ -328,7 +286,7 @@ Typically the backend wrapper will already merge any necessary backend-specific
```
Note: `webrootPath` can be set as a default, semi-locally with `webrootPathTpl`, or per
registration as `webrootPath` (which overwrites `defaults.webrootPath`).
registration as `webrootPath` (which overwrites `leConfig.webrootPath`).
#### handlers *optional*
@ -434,20 +392,6 @@ Checks in-memory cache of certificates for `args.domains` and calls then calls `
Not yet implemented
Backends
--------
* [`letsencrypt-python`](https://github.com/Daplie/node-letsencrypt-python) (complete)
* [`letiny`](https://github.com/Daplie/node-letiny) (in progress)
#### How to write a backend
A backend must implement (or be wrapped to implement) this API:
* `fetch(hostname, cb)` will cb(err, certs) with certs from disk (or null or error)
* `register(args, challengeCb, done)` will register and or renew a cert
* args = `{ domains, email, agreeTos }` MUST check that agreeTos === true
* challengeCb = `function (challenge, cb) { }` handle challenge as needed, call cb()
This is what `args` looks like:
@ -468,61 +412,12 @@ This is what the implementation should look like:
(it's expected that the client will follow the same conventions as
the python client, but it's not necessary)
```javascript
return {
fetch: function (args, cb) {
// NOTE: should return an error if args.domains cannot be satisfied with a single cert
// (usually example.com and www.example.com will be handled on the same cert, for example)
if (errorHappens) {
// return an error if there is an actual error (db, etc)
cb(err);
return;
}
// return null if there is no error, nor a certificate
else if (!cert) {
cb(null, null);
return;
}
// NOTE: if the certificate is available but expired it should be
// returned and the calling application will decide to renew when
// it is convenient
// NOTE: the application should handle caching, not the library
// return the cert with metadata
cb(null, {
cert: "/*contcatonated certs in pem format: cert + intermediate*/"
, key: "/*private keypair in pem format*/"
, renewedAt: new Date() // fs.stat cert.pem should also work
, duration: 90 * 24 * 60 * 60 * 1000 // assumes 90-days unless specified
});
}
, register: function (args, challengeCallback, completeCallback) {
// **MUST** reject if args.agreeTos is not true
// once you're ready for the caller to know the challenge
if (challengeCallback) {
challengeCallback(challenge, function () {
continueRegistration();
})
} else {
continueRegistration();
}
function continueRegistration() {
// it is not necessary to to return the certificates here
// the client will call fetch() when it needs them
completeCallback(err);
}
}
};
```
Change History
==============
v1.0.0 Thar be dragons
* v1.1.0 Added letiny-core, removed node-letsencrypt-python
* v1.0.2 Works with node-letsencrypt-python
* v1.0.0 Thar be dragons
LICENSE
=======

42
backends/python.js
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@ -1,42 +0,0 @@
'use strict';
var PromiseA = require('bluebird');
var fs = PromiseA.promisifyAll(require('fs'));
module.exports.create = function (defaults, opts) {
defaults.webroot = true;
defaults.renewByDefault = true;
defaults.text = true;
var leBinPath = defaults.pythonClientPath;
var LEP = require('letsencrypt-python');
var lep = PromiseA.promisifyAll(LEP.create(leBinPath, opts));
var wrapped = {
registerAsync: function (args) {
return lep.registerAsync('certonly', args);
}
, fetchAsync: function (args) {
var hostname = args.domains[0];
var crtpath = defaults.configDir + defaults.fullchainTpl.replace(/:hostname/, hostname);
var privpath = defaults.configDir + defaults.privkeyTpl.replace(/:hostname/, hostname);
return PromiseA.all([
fs.readFileAsync(privpath, 'ascii')
, fs.readFileAsync(crtpath, 'ascii')
// stat the file, not the link
, fs.statAsync(crtpath)
]).then(function (arr) {
return {
key: arr[0] // privkey.pem
, cert: arr[1] // fullchain.pem
// TODO parse centificate for lifetime / expiresAt
, issuedAt: arr[2].mtime.valueOf()
};
}, function () {
return null;
});
}
};
return wrapped;
};

6
examples/commandline-minimal.js
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@ -11,11 +11,11 @@ config.le.server = LE.stagingServer;
//
// Manual Registration
//
var le = LE.create(config.backend, config.le);
var le = LE.create(config.le);
le.register({
agreeTos: true
, domains: ['example.com'] // CHANGE TO YOUR DOMAIN
, email: 'user@example.com' // CHANGE TO YOUR EMAIL
, domains: [process.argv[3] || 'example.com'] // CHANGE TO YOUR DOMAIN
, email: process.argv[2] || 'user@example.com' // CHANGE TO YOUR EMAIL
}, function (err) {
if (err) {
console.error('[Error]: node-letsencrypt/examples/standalone');

6
examples/commandline.js
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@ -28,13 +28,9 @@ var bkDefaults = {
// backend-specific
, logsDir: path.join(__dirname, '..', 'tests', 'letsencrypt.logs')
, workDir: path.join(__dirname, '..', 'tests', 'letsencrypt.work')
, text: true
, pythonClientPath: require('os').homedir() + '/.local/share/letsencrypt/bin/letsencrypt'
};
var LEP = require('../backends/python');
var le = LE.create(LEP, bkDefaults, {
var le = LE.create(bkDefaults, {
/*
setChallenge: function (hostnames, key, value, cb) {
// the python backend needs fs.watch implemented

6
examples/config-minimal.js
View File

@ -2,8 +2,6 @@
var path = require('path');
var binpath = require('os').homedir() + '/.local/share/letsencrypt/bin/letsencrypt';
var config = {
plainPort: 80
@ -21,12 +19,8 @@ var config = {
// these are specific to the python client and won't be needed with the purejs library
, logsDir: path.join(__dirname, '..', 'tests', 'letsencrypt.logs')
, workDir: path.join(__dirname, '..', 'tests', 'letsencrypt.work')
, pythonClientPath: binpath
}
};
//config.backend = require('letsencrypt/backends/python').create(binpath, config.le);
config.backend = require('../backends/python');
module.exports = config;

2
examples/express-minimal.js
View File

@ -7,7 +7,7 @@ var config = require('./config-minimal');
config.le.webrootPath = __dirname + '/../tests/acme-challenge';
config.le.server = LE.stagingServer;
var le = LE.create(config.backend, config.le, {
var le = LE.create(config.le, {
sniRegisterCallback: function (args, expiredCert, cb) {
// In theory you should never get an expired certificate because
// the certificates automatically renew in the background starting

7
examples/express.js
View File

@ -24,15 +24,8 @@ var bkDefaults = {
, privkeyTpl: '/live/:hostname/privkey.pem'
, configDir: path.join(__dirname, '..', 'tests', 'letsencrypt.config')
, server: LE.stagingServer
// python-specific
, logsDir: path.join(__dirname, '..', 'tests', 'letsencrypt.logs')
, workDir: path.join(__dirname, '..', 'tests', 'letsencrypt.work')
, pythonClientPath: require('os').homedir() + '/.local/share/letsencrypt/bin/letsencrypt'
};
var LEP = require('../backends/python');
var le = LE.create(LEP, bkDefaults, {
sniRegisterCallback: function (args, certInfo, cb) {
var allowedDomains = conf.domains; // require('../tests/config').allowedDomains;

54
examples/ursa.js Normal file
View File

@ -0,0 +1,54 @@
'use strict';
var LE = require('../');
var config = require('./config-minimal');
// Note: you should make this special dir in your product and leave it empty
config.le.webrootPath = __dirname + '/../tests/acme-challenge';
config.le.server = LE.stagingServer;
//
// Manual Registration
//
var le = LE.create(config.le);
le.backend.registerAsync({
agreeTos: true
, domains: ['example.com'] // CHANGE TO YOUR DOMAIN
, email: 'user@example.com' // CHANGE TO YOUR EMAIL
}, function (err, body) {
if (err) {
console.error('[Error]: node-letsencrypt/examples/ursa');
console.error(err.stack);
} else {
console.log('success', body);
}
plainServer.close();
tlsServer.close();
}).then(function () {}, function (err) {
console.error(err.stack);
});
//
// Express App
//
var app = require('express')();
app.use('/', le.middleware());
//
// HTTP & HTTPS servers
// (required for domain validation)
//
var plainServer = require('http').createServer(app).listen(config.plainPort, function () {
console.log('Listening http', this.address());
});
var tlsServer = require('https').createServer({
key: config.tlsKey
, cert: config.tlsCert
, SNICallback: le.sniCallback
}, app).listen(config.tlsPort, function () {
console.log('Listening http', this.address());
});

175
index.js
View File

@ -5,15 +5,20 @@
var PromiseA = require('bluebird');
var crypto = require('crypto');
var tls = require('tls');
var path = require('path');
var leCore = require('./lib/letiny-core');
var LE = module.exports;
LE.productionServerUrl = leCore.productionServerUrl;
LE.stagingServer = leCore.stagingServerUrl;
LE.configDir = leCore.configDir;
LE.logsDir = leCore.logsDir;
LE.workDir = leCore.workDir;
LE.acmeChallengPrefix = leCore.acmeChallengPrefix;
LE.knownEndpoints = leCore.knownEndpoints;
LE.liveServer = "https://acme-v01.api.letsencrypt.org/directory";
LE.stagingServer = "https://acme-staging.api.letsencrypt.org/directory";
LE.configDir = "/etc/letsencrypt/";
LE.logsDir = "/var/log/letsencrypt/";
LE.workDir = "/var/lib/letsencrypt/";
// backwards compat
LE.liveServer = leCore.productionServerUrl;
LE.knownUrls = leCore.knownEndpoints;
LE.merge = function merge(defaults, args) {
var copy = {};
@ -28,19 +33,48 @@ LE.merge = function merge(defaults, args) {
return copy;
};
LE.create = function (backend, defaults, handlers) {
if ('function' === typeof backend.create) {
backend.create(defaults, handlers);
}
else if ('string' === typeof backend) {
// TODO I'll probably regret this
// I don't like dynamic requires because they cause build / minification issues.
backend = require(path.join('backends', backend)).create(defaults, handlers);
}
else {
// ignore
// this backend was created the v1.0.0 way
LE.cacheCertInfo = function (args, certInfo, ipc, handlers) {
// TODO IPC via process and worker to guarantee no races
// rather than just "really good odds"
var hostname = args.domains[0];
var now = Date.now();
// Stagger randomly by plus 0% to 25% to prevent all caches expiring at once
var rnd1 = (crypto.randomBytes(1)[0] / 255);
var memorizeFor = Math.floor(handlers.memorizeFor + ((handlers.memorizeFor / 4) * rnd1));
// Stagger randomly to renew between n and 2n days before renewal is due
// this *greatly* reduces the risk of multiple cluster processes renewing the same domain at once
var rnd2 = (crypto.randomBytes(1)[0] / 255);
var bestIfUsedBy = certInfo.expiresAt - (handlers.renewWithin + Math.floor(handlers.renewWithin * rnd2));
// Stagger randomly by plus 0 to 5 min to reduce risk of multiple cluster processes
// renewing at once on boot when the certs have expired
var rnd3 = (crypto.randomBytes(1)[0] / 255);
var renewTimeout = Math.floor((5 * 60 * 1000) * rnd3);
certInfo.context = tls.createSecureContext({
key: certInfo.key
, cert: certInfo.cert
//, ciphers // node's defaults are great
});
certInfo.loadedAt = now;
certInfo.memorizeFor = memorizeFor;
certInfo.bestIfUsedBy = bestIfUsedBy;
certInfo.renewTimeout = renewTimeout;
ipc[hostname] = certInfo;
return ipc[hostname];
};
// backend, defaults, handlers
LE.create = function (defaults, handlers, backend) {
var d, b, h;
// backwards compat for <= v1.0.2
if (defaults.registerAsync || defaults.create) {
b = defaults; d = handlers; h = backend;
defaults = d; handlers = h; backend = b;
}
if (!backend) { backend = require('./lib/letiny-core'); }
if (!handlers) { handlers = {}; }
if (!handlers.lifetime) { handlers.lifetime = 90 * 24 * 60 * 60 * 1000; }
if (!handlers.renewWithin) { handlers.renewWithin = 3 * 24 * 60 * 60 * 1000; }
@ -51,9 +85,52 @@ LE.create = function (backend, defaults, handlers) {
cb(null, null);
};
}
if (!handlers.getChallenge) {
if (!defaults.manual && !defaults.webrootPath) {
// GET /.well-known/acme-challenge/{{challengeKey}} should return {{tokenValue}}
throw new Error("handlers.getChallenge or defaults.webrootPath must be set");
}
handlers.getChallenge = function (hostname, key, done) {
// TODO associate by hostname?
// hmm... I don't think there's a direct way to associate this with
// the request it came from... it's kinda stateless in that way
// but realistically there only needs to be one handler and one
// "directory" for this. It's not that big of a deal.
var defaultos = LE.merge(defaults, {});
defaultos.domains = [hostname];
require('./lib/default-handlers').getChallenge(defaultos, key, done);
};
}
if (!handlers.setChallenge) {
if (!defaults.webrootPath) {
// GET /.well-known/acme-challenge/{{challengeKey}} should return {{tokenValue}}
throw new Error("handlers.setChallenge or defaults.webrootPath must be set");
}
handlers.setChallenge = require('./lib/default-handlers').setChallenge;
}
if (!handlers.removeChallenge) {
if (!defaults.webrootPath) {
// GET /.well-known/acme-challenge/{{challengeKey}} should return {{tokenValue}}
throw new Error("handlers.removeChallenge or defaults.webrootPath must be set");
}
handlers.removeChallenge = require('./lib/default-handlers').removeChallenge;
}
if (!handlers.agreeToTerms) {
if (defaults.agreeTos) {
console.warn("[WARN] Agreeing to terms by default is risky business...");
}
handlers.agreeToTerms = require('./lib/default-handlers').agreeToTerms;
}
if ('function' === typeof backend.create) {
backend = backend.create(defaults, handlers);
}
else {
// ignore
// this backend was created the v1.0.0 way
}
backend = PromiseA.promisifyAll(backend);
var utils = require('./utils');
var utils = require('./utils');
//var attempts = {}; // should exist in master process only
var ipc = {}; // in-process cache
var le;
@ -104,7 +181,8 @@ LE.create = function (backend, defaults, handlers) {
}
le = {
validate: function (hostnames, cb) {
backend: backend
, validate: function (hostnames, cb) {
// TODO check dns, etc
if ((!hostnames.length && hostnames.every(le.isValidDomain))) {
cb(new Error("node-letsencrypt: invalid hostnames: " + hostnames.join(',')));
@ -127,17 +205,25 @@ LE.create = function (backend, defaults, handlers) {
cb(null, true);
}
, middleware: function () {
//console.log('[DEBUG] webrootPath', defaults.webrootPath);
var serveStatic = require('serve-static')(defaults.webrootPath, { dotfiles: 'allow' });
var prefix = '/.well-known/acme-challenge/';
var prefix = leCore.acmeChallengePrefix;
return function (req, res, next) {
if (0 !== req.url.indexOf(prefix)) {
//console.log('[LE middleware]: pass');
next();
return;
}
serveStatic(req, res, next);
//args.domains = [req.hostname];
//console.log('[LE middleware]:', req.hostname, req.url, req.url.slice(prefix.length));
handlers.getChallenge(req.hostname, req.url.slice(prefix.length), function (err, token) {
if (err) {
res.send("Error: These aren't the tokens you're looking for. Move along.");
return;
}
res.send(token);
});
};
}
, SNICallback: sniCallback
@ -159,9 +245,9 @@ LE.create = function (backend, defaults, handlers) {
return;
}
console.log("[NLE]: begin registration");
//console.log("[NLE]: begin registration");
return backend.registerAsync(copy).then(function () {
console.log("[NLE]: end registration");
//console.log("[NLE]: end registration");
// calls fetch because fetch calls cacheCertInfo
return le.fetch(args, cb);
}, cb);
@ -231,6 +317,10 @@ LE.create = function (backend, defaults, handlers) {
le._fetchHelper(args, cb);
}
, register: function (args, cb) {
if (!Array.isArray(args.domains)) {
cb(new Error('args.domains should be an array of domains'));
return;
}
// this may be run in a cluster environment
// in that case it should NOT check the cache
// but ensure that it has the most fresh copy
@ -284,36 +374,3 @@ LE.create = function (backend, defaults, handlers) {
return le;
};
LE.cacheCertInfo = function (args, certInfo, ipc, handlers) {
// TODO IPC via process and worker to guarantee no races
// rather than just "really good odds"
var hostname = args.domains[0];
var now = Date.now();
// Stagger randomly by plus 0% to 25% to prevent all caches expiring at once
var rnd1 = (crypto.randomBytes(1)[0] / 255);
var memorizeFor = Math.floor(handlers.memorizeFor + ((handlers.memorizeFor / 4) * rnd1));
// Stagger randomly to renew between n and 2n days before renewal is due
// this *greatly* reduces the risk of multiple cluster processes renewing the same domain at once
var rnd2 = (crypto.randomBytes(1)[0] / 255);
var bestIfUsedBy = certInfo.expiresAt - (handlers.renewWithin + Math.floor(handlers.renewWithin * rnd2));
// Stagger randomly by plus 0 to 5 min to reduce risk of multiple cluster processes
// renewing at once on boot when the certs have expired
var rnd3 = (crypto.randomBytes(1)[0] / 255);
var renewTimeout = Math.floor((5 * 60 * 1000) * rnd3);
certInfo.context = tls.createSecureContext({
key: certInfo.key
, cert: certInfo.cert
//, ciphers // node's defaults are great
});
certInfo.loadedAt = now;
certInfo.memorizeFor = memorizeFor;
certInfo.bestIfUsedBy = bestIfUsedBy;
certInfo.renewTimeout = renewTimeout;
ipc[hostname] = certInfo;
return ipc[hostname];
};

30
lib/common.js Normal file
View File

@ -0,0 +1,30 @@
'use strict';
var fs = require('fs');
var PromiseA = require('bluebird');
module.exports.fetchFromDisk = function (args, defaults) {
var hostname = args.domains[0];
var crtpath = (args.fullchainPath || defaults.fullchainPath)
|| (defaults.configDir
+ (args.fullchainTpl || defaults.fullchainTpl || ':hostname/fullchain.pem').replace(/:hostname/, hostname));
var privpath = (args.privkeyPath || defaults.privkeyPath)
|| (defaults.configDir
+ (args.privkeyTpl || defaults.privkeyTpl || ':hostname/privkey.pem').replace(/:hostname/, hostname));
return PromiseA.all([
fs.readFileAsync(privpath, 'ascii')
, fs.readFileAsync(crtpath, 'ascii')
// stat the file, not the link
, fs.statAsync(crtpath)
]).then(function (arr) {
return {
key: arr[0] // privkey.pem
, cert: arr[1] // fullchain.pem
// TODO parse centificate for lifetime / expiresAt
, issuedAt: arr[2].mtime.valueOf()
};
}, function () {
return null;
});
};

76
lib/crypto-utils-ursa.js Normal file
View File

@ -0,0 +1,76 @@
'use strict';
var crypto = require('crypto');
var ursa = require('ursa');
var forge = require('node-forge');
function binstr2b64(binstr) {
return new Buffer(binstr, 'binary').toString('base64');
}
function toAcmePrivateKey(privkeyPem) {
var forgePrivkey = forge.pki.privateKeyFromPem(privkeyPem);
return {
kty: "RSA"
, n: binstr2b64(forgePrivkey.n)
, e: binstr2b64(forgePrivkey.e)
, d: binstr2b64(forgePrivkey.d)
, p: binstr2b64(forgePrivkey.p)
, q: binstr2b64(forgePrivkey.q)
, dp: binstr2b64(forgePrivkey.dP)
, dq: binstr2b64(forgePrivkey.dQ)
, qi: binstr2b64(forgePrivkey.qInv)
};
}
function generateRsaKeypair(bitlen, exp, cb) {
var keypair = ursa.generatePrivateKey(bitlen /*|| 2048*/, exp /*65537*/);
var pems = {
publicKeyPem: keypair.toPublicPem().toString('ascii') // ascii PEM: ----BEGIN...
, privateKeyPem: keypair.toPrivatePem().toString('ascii') // ascii PEM: ----BEGIN...
};
// I would have chosen sha1 or sha2... but whatever
pems.publicKeyMd5 = crypto.createHash('md5').update(pems.publicKeyPem).digest('hex');
// json { n: ..., e: ..., iq: ..., etc }
pems.privateKeyJwk = toAcmePrivateKey(pems.privateKeyPem);
pems.privateKeyJson = pems.privateKeyJwk;
// TODO thumbprint
cb(null, pems);
}
function parseAccountPrivateKey(pkj, cb) {
Object.keys(pkj).forEach(function (key) {
pkj[key] = new Buffer(pkj[key], 'base64');
});
var priv;
try {
priv = ursa.createPrivateKeyFromComponents(
pkj.n // modulus
, pkj.e // exponent
, pkj.p
, pkj.q
, pkj.dp
, pkj.dq
, pkj.qi
, pkj.d
);
} catch(e) {
cb(e);
return;
}
cb(null, {
privateKeyPem: priv.toPrivatePem.toString('ascii')
, publicKeyPem: priv.toPublicPem.toString('ascii')
});
}
module.exports.parseAccountPrivateKey = parseAccountPrivateKey;
module.exports.generateRsaKeypair = generateRsaKeypair;
module.exports.toAcmePrivateKey = toAcmePrivateKey;

40
lib/default-handlers.js Normal file
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@ -0,0 +1,40 @@
'use strict';
var fs = require('fs');
var path = require('path');
module.exports.agreeToTerms = function (args, agree) {
agree(null, args.agreeTos);
};
module.exports.setChallenge = function (args, challengePath, keyAuthorization, done) {
//var hostname = args.domains[0];
var mkdirp = require('mkdirp');
// TODO should be args.webrootPath
//console.log('args.webrootPath, challengePath');
//console.log(args.webrootPath, challengePath);
mkdirp(args.webrootPath, function (err) {
if (err) {
done(err);
return;
}
fs.writeFile(path.join(args.webrootPath, challengePath), keyAuthorization, 'utf8', function (err) {
done(err);
});
});
};
module.exports.getChallenge = function (args, key, done) {
//var hostname = args.domains[0];
//console.log("getting the challenge", args, key);
fs.readFile(path.join(args.webrootPath, key), 'utf8', done);
};
module.exports.removeChallenge = function (args, key, done) {
//var hostname = args.domains[0];
fs.unlink(path.join(args.webrootPath, key), done);
};

352
lib/letiny-core.js Normal file
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'use strict';
var PromiseA = require('bluebird');
var mkdirpAsync = PromiseA.promisify(require('mkdirp'));
var path = require('path');
var fs = PromiseA.promisifyAll(require('fs'));
var sfs = require('safe-replace');
var LE = require('../');
var LeCore = PromiseA.promisifyAll(require('letiny-core'));
var leCrypto = PromiseA.promisifyAll(LeCore.leCrypto);
var fetchFromConfigLiveDir = require('./common').fetchFromDisk;
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);
}
return LeCore.getAcmeUrlsAsync(args.server).then(function (data) {
ipc.acmeUrlsUpdatedAt = Date.now();
ipc.acmeUrls = data;
return ipc.acmeUrls;
});
}
function createAccount(args, handlers) {
var os = require("os");
var localname = os.hostname();
// TODO support ECDSA
// arg.rsaBitLength args.rsaExponent
return leCrypto.generateRsaKeypairAsync(args.rsaBitLength, args.rsaExponent).then(function (pems) {
/* pems = { privateKeyPem, privateKeyJwk, publicKeyPem, publicKeyMd5 } */
return LeCore.registerNewAccountAsync({
email: args.email
, newRegUrl: args._acmeUrls.newReg
, agreeToTerms: function (tosUrl, agree) {
// args.email = email; // already there
args.tosUrl = tosUrl;
handlers.agreeToTerms(args, agree);
}
, accountPrivateKeyPem: pems.privateKeyPem
, debug: args.debug || handlers.debug
}).then(function (body) {
var accountDir = path.join(args.accountsDir, pems.publicKeyMd5);
return mkdirpAsync(accountDir).then(function () {
var isoDate = new Date().toISOString();
var accountMeta = {
creation_host: localname
, creation_dt: isoDate
};
return PromiseA.all([
// meta.json {"creation_host": "ns1.redirect-www.org", "creation_dt": "2015-12-11T04:14:38Z"}
fs.writeFileAsync(path.join(accountDir, 'meta.json'), JSON.stringify(accountMeta), 'utf8')
// private_key.json { "e", "d", "n", "q", "p", "kty", "qi", "dp", "dq" }
, fs.writeFileAsync(path.join(accountDir, 'private_key.json'), JSON.stringify(pems.privateKeyJwk), 'utf8')
// regr.json:
/*
{ body: { contact: [ 'mailto:coolaj86@gmail.com' ],
agreement: 'https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf',
key: { e: 'AQAB', kty: 'RSA', n: '...' } },
uri: 'https://acme-v01.api.letsencrypt.org/acme/reg/71272',
new_authzr_uri: 'https://acme-v01.api.letsencrypt.org/acme/new-authz',
terms_of_service: 'https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf' }
*/
, fs.writeFileAsync(path.join(accountDir, 'regr.json'), JSON.stringify({ body: body }), 'utf8')
]).then(function () {
return pems;
});
});
});
});
}
function getAccount(accountId, args, handlers) {
var accountDir = path.join(args.accountsDir, accountId);
var files = {};
var configs = ['meta.json', 'private_key.json', 'regr.json'];
return PromiseA.all(configs.map(function (filename) {
var keyname = filename.slice(0, -5);
return fs.readFileAsync(path.join(accountDir, filename), 'utf8').then(function (text) {
var data;
try {
data = JSON.parse(text);
} catch(e) {
files[keyname] = { error: e };
return;
}
files[keyname] = data;
}, function (err) {
files[keyname] = { error: err };
});
})).then(function () {
if (!Object.keys(files).every(function (key) {
return !files[key].error;
})) {
// TODO log renewal.conf
console.warn("Account '" + accountId + "' was currupt. No big deal (I think?). Creating a new one...");
return createAccount(args, handlers);
}
return leCrypto.parseAccountPrivateKeyAsync(files.private_key).then(function (keypair) {
files.accountId = accountId; // md5sum(publicKeyPem)
files.publicKeyMd5 = accountId; // md5sum(publicKeyPem)
files.publicKeyPem = keypair.publicKeyPem; // ascii PEM: ----BEGIN...
files.privateKeyPem = keypair.privateKeyPem; // ascii PEM: ----BEGIN...
files.privateKeyJson = keypair.private_key; // json { n: ..., e: ..., iq: ..., etc }
return files;
});
});
}
function getAccountByEmail(args) {
// If we read 10,000 account directories looking for
// just one email address, that could get crazy.
// We should have a folder per email and list
// each account as a file in the folder
// TODO
return PromiseA.resolve(null);
}
function getCertificateAsync(account, args, defaults, handlers) {
var pyconf = PromiseA.promisifyAll(require('pyconf'));
return leCrypto.generateRsaKeypairAsync(args.rsaBitLength, args.rsaExponent).then(function (domain) {
return LeCore.getCertificateAsync({
newAuthzUrl: args._acmeUrls.newAuthz
, newCertUrl: args._acmeUrls.newCert
, accountPrivateKeyPem: account.privateKeyPem
, domainPrivateKeyPem: domain.privateKeyPem
, domains: args.domains
, setChallenge: function (domain, key, value, done) {
args.domains = [domain];
args.webrootPath = args.webrootPath || defaults.webrootPath;
handlers.setChallenge(args, key, value, done);
}
, removeChallenge: function (domain, key, done) {
args.domains = [domain];
args.webrootPath = args.webrootPath || defaults.webrootPath;
handlers.removeChallenge(args, key, done);
}
}).then(function (result) {
// TODO write pems={ca,cert,key} to disk
var liveDir = path.join(args.configDir, 'live', args.domains[0]);
var certPath = path.join(liveDir, 'cert.pem');
var fullchainPath = path.join(liveDir, 'fullchain.pem');
var chainPath = path.join(liveDir, 'chain.pem');
var privkeyPath = path.join(liveDir, 'privkey.pem');
result.fullchain = result.cert + '\n' + result.ca;
// TODO write to archive first, then write to live
return mkdirpAsync(liveDir).then(function () {
return PromiseA.all([
sfs.writeFileAsync(certPath, result.cert, 'ascii')
, sfs.writeFileAsync(chainPath, result.chain, 'ascii')
, sfs.writeFileAsync(fullchainPath, result.fullchain, 'ascii')
, sfs.writeFileAsync(privkeyPath, result.key, 'ascii')
]).then(function () {
// TODO format result licesy
//console.log(liveDir);
//console.log(result);
return {
certPath: certPath
, chainPath: chainPath
, fullchainPath: fullchainPath
, privkeyPath: privkeyPath
};
});
});
});
});
}
function registerWithAcme(args, defaults, handlers) {
var pyconf = PromiseA.promisifyAll(require('pyconf'));
var server = args.server || defaults.server || LeCore.stagingServerUrl; // https://acme-v01.api.letsencrypt.org/directory
var acmeHostname = require('url').parse(server).hostname;
var configDir = args.configDir || defaults.configDir || LE.configDir;
args.server = server;
args.renewalDir = args.renewalDir || path.join(configDir, 'renewal', args.domains[0] + '.conf');
args.accountsDir = args.accountsDir || path.join(configDir, 'accounts', acmeHostname, 'directory');
return pyconf.readFileAsync(args.renewalDir).then(function (renewal) {
var accountId = renewal.account;
renewal = renewal.account;
return accountId;
}, function (err) {
if ("ENOENT" === err.code) {
return getAccountByEmail(args, handlers);
}
return PromiseA.reject(err);
}).then(function (accountId) {
// Note: the ACME urls are always fetched fresh on purpose
return getAcmeUrls(args).then(function (urls) {
args._acmeUrls = urls;
if (accountId) {
return getAccount(accountId, args, handlers);
} else {
return createAccount(args, handlers);
}
});
}).then(function (account) {
/*
if (renewal.account !== account) {
// the account has become corrupt, re-register
return;
}
*/
//console.log(account);
return fetchFromConfigLiveDir(args, defaults).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
return getCertificateAsync(account, args, defaults, handlers);
}
else if (certs.issuedAt > (27 * 24 * 60 * 60 * 1000)) {
// cert is at least 27 days old we can renew that
return getCertificateAsync(account, args, defaults, handlers);
}
else if (args.duplicate) {
// YOLO! I be gettin' fresh certs 'erday! Yo!
return getCertificateAsync(account, 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;
}
});
/*
cert = /home/aj/node-letsencrypt/tests/letsencrypt.config/live/lds.io/cert.pem
privkey = /home/aj/node-letsencrypt/tests/letsencrypt.config/live/lds.io/privkey.pem
chain = /home/aj/node-letsencrypt/tests/letsencrypt.config/live/lds.io/chain.pem
fullchain = /home/aj/node-letsencrypt/tests/letsencrypt.config/live/lds.io/fullchain.pem
# Options and defaults used in the renewal process
[renewalparams]
apache_enmod = a2enmod
no_verify_ssl = False
ifaces = None
apache_dismod = a2dismod
register_unsafely_without_email = False
uir = None
installer = none
config_dir = /home/aj/node-letsencrypt/tests/letsencrypt.config
text_mode = True
func = <function obtain_cert at 0x7f46af0f02a8>
prepare = False
work_dir = /home/aj/node-letsencrypt/tests/letsencrypt.work
tos = True
init = False
http01_port = 80
duplicate = False
key_path = None
nginx = False
fullchain_path = /home/aj/node-letsencrypt/chain.pem
email = coolaj86@gmail.com
csr = None
agree_dev_preview = None
redirect = None
verbose_count = -3
config_file = None
renew_by_default = True
hsts = False
authenticator = webroot
domains = lds.io,
rsa_key_size = 2048
checkpoints = 1
manual_test_mode = False
apache = False
cert_path = /home/aj/node-letsencrypt/cert.pem
webroot_path = /home/aj/node-letsencrypt/examples/../tests/acme-challenge,
strict_permissions = False
apache_server_root = /etc/apache2
account = 1c41c64dfaf10d511db8aef0cc33b27f
manual_public_ip_logging_ok = False
chain_path = /home/aj/node-letsencrypt/chain.pem
standalone = False
manual = False
server = https://acme-staging.api.letsencrypt.org/directory
standalone_supported_challenges = "http-01,tls-sni-01"
webroot = True
apache_init_script = None
user_agent = None
apache_ctl = apache2ctl
apache_le_vhost_ext = -le-ssl.conf
debug = False
tls_sni_01_port = 443
logs_dir = /home/aj/node-letsencrypt/tests/letsencrypt.logs
configurator = None
[[webroot_map]]
lds.io = /home/aj/node-letsencrypt/examples/../tests/acme-challenge
*/
});
/*
return fs.readdirAsync(accountsDir, function (nodes) {
return PromiseA.all(nodes.map(function (node) {
var reMd5 = /[a-f0-9]{32}/i;
if (reMd5.test(node)) {
}
}));
});
*/
}
module.exports.create = function (defaults, handlers) {
defaults.server = defaults.server || LE.liveServer;
var wrapped = {
registerAsync: function (args) {
//require('./common').registerWithAcme(args, defaults, handlers);
return registerWithAcme(args, defaults, handlers);
}
, fetchAsync: function (args) {
return fetchFromConfigLiveDir(args, defaults);
}
};
return wrapped;
};

13
package.json
View File

@ -34,16 +34,17 @@
"localhost.daplie.com-certificates": "^1.1.2"
},
"optionalDependencies": {
"letsencrypt-python": "^1.0.3",
"letsencrypt-forge": "file:letsencrypt-forge",
"letsencrypt-ursa": "file:letsencrypt-ursa",
"node-forge": "^0.6.38",
"letiny": "0.0.4-beta",
"ursa": "^0.9.1"
},
"dependencies": {
"bluebird": "^3.0.6",
"safe-replace": "^1.0.0",
"homedir": "^0.6.0",
"letiny-core": "^1.0.1",
"mkdirp": "^0.5.1",
"node-forge": "^0.6.38",
"pyconf": "^1.0.0",
"request": "^2.67.0",
"safe-replace": "^1.0.2",
"serve-static": "^1.10.0"
}
}