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greenlock.js
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gutting python

This commit is contained in:
AJ ONeal 2015-12-16 01:11:31 -08:00
parent c48de554c2
commit 3151ec3922
11 changed files with 112 additions and 185 deletions
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49
README.md
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@ -263,52 +263,27 @@ 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
@ -326,7 +301,7 @@ 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*

34
backends/python.js
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@ -1,34 +0,0 @@
'use strict';
var PromiseA = require('bluebird');
var fs = PromiseA.promisifyAll(require('fs'));
module.exports.create = function (defaults, opts, extra) {
// v1.0.0 backwards compat
if (3 === arguments.length) {
opts.pythonClientPath = defaults;
defaults = opts;
opts = extra;
}
else if (2 !== arguments.length) {
throw new Error("Instead of creating the python backend yourself, just pass it to LE. See the README.md");
}
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) {
require('./common').fetchFromDisk(args, defaults);
}
};
return wrapped;
};

2
examples/commandline-minimal.js
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@ -11,7 +11,7 @@ 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

4
examples/commandline.js
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@ -32,9 +32,7 @@ var bkDefaults = {
, 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

3
examples/config-minimal.js
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@ -26,7 +26,4 @@ var config = {
};
//config.backend = require('letsencrypt/backends/python').create(binpath, config.le);
config.backend = require('../backends/python');
module.exports = config;

2
examples/express-minimal.js
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@ -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
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@ -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;

90
index.js
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@ -6,14 +6,18 @@ var PromiseA = require('bluebird');
var crypto = require('crypto');
var tls = require('tls');
var path = require('path');
var leCore = require('./backends/letiny-core');
var LE = module.exports;
LE.productionServerUrl = leCore.productionServerUrl;
LE.stagingServer = leCore.stagingServerUrl;
LE.configDir = leCore.configDir;
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 = {};
@ -28,7 +32,48 @@ LE.merge = function merge(defaults, args) {
return copy;
};
LE.create = function (backend, defaults, handlers) {
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; }
@ -324,36 +369,3 @@ 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];
};

0
backends/common.js → lib/common.js
View File

99
backends/ursa.js → lib/letiny-core.js
View File

@ -6,10 +6,10 @@ var fs = PromiseA.promisifyAll(require('fs'));
var requestAsync = PromiseA.promisify(require('request'));
var LE = require('../');
var knownUrls = ['new-authz', 'new-cert', 'new-reg', 'revoke-cert'];
var ucrypto = PromiseA.promisifyAll(require('../lib/crypto-utils-ursa'));
var LeCore = PromiseA.promisifyAll(require('letiny-core'));
var ucrypto = PromiseA.promisifyAll(LeCore.leCrypto);
//var fcrypto = PromiseA.promisifyAll(require('../lib/crypto-utils-forge'));
var lef = PromiseA.promisifyAll(require('letsencrypt-forge'));
var fetchFromConfigLiveDir = require('./common').fetchFromDisk;
var ipc = {}; // in-process cache
@ -22,30 +22,7 @@ function getAcmeUrls(args) {
return PromiseA.resolve(ipc.acmeUrls);
}
return requestAsync({
url: args.server
}).then(function (resp) {
var data = resp.body;
if ('string' === typeof data) {
try {
data = JSON.parse(data);
} catch(e) {
return PromiseA.reject(e);
}
}
if (4 !== Object.keys(data).length) {
console.warn("This Let's Encrypt / ACME server has been updated with urls that this client doesn't understand");
console.warn(data);
}
if (!knownUrls.every(function (url) {
return data[url];
})) {
console.warn("This Let's Encrypt / ACME server is missing urls that this client may need.");
console.warn(data);
}
return LeCore.getAcmeUrlsAsync(args.server).then(function (data) {
ipc.acmeUrlsUpdatedAt = Date.now();
ipc.acmeUrls = {
newAuthz: data['new-authz']
@ -68,7 +45,7 @@ function createAccount(args, handlers) {
return ucrypto.generateRsaKeypairAsync(args.rsaBitLength, args.rsaExponent).then(function (pems) {
/* pems = { privateKeyPem, privateKeyJwk, publicKeyPem, publicKeyMd5 } */
return lef.registerNewAccountAsync({
return LeCore.registerNewAccountAsync({
email: args.email
, newReg: args._acmeUrls.newReg
, debug: args.debug || handlers.debug
@ -79,17 +56,6 @@ function createAccount(args, handlers) {
}
, accountPrivateKeyPem: pems.privateKeyPem
}).then(function (body) {
if (body instanceof Buffer) {
body = body.toString('utf8');
}
if ('string' === typeof body) {
try {
body = JSON.parse(body);
} catch(e) {
// ignore
}
}
var accountDir = path.join(args.accountsDir, pems.publicKeyMd5);
return mkdirpAsync(accountDir).then(function () {
@ -100,21 +66,20 @@ function createAccount(args, handlers) {
, creation_dt: isoDate
};
// meta.json {"creation_host": "ns1.redirect-www.org", "creation_dt": "2015-12-11T04:14:38Z"}
// private_key.json { "e", "d", "n", "q", "p", "kty", "qi", "dp", "dq" }
// 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' }
*/
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;
@ -180,15 +145,21 @@ function getCertificateAsync(account, args, defaults, handlers) {
var pyconf = PromiseA.promisifyAll(require('pyconf'));
return ucrypto.generateRsaKeypairAsync(args.rsaBitLength, args.rsaExponent).then(function (domain) {
return lef.getCertificateAsync({
domains: args.domains
return lef.getCertificateAsyncAsync({
newAuthorizationUrl: args._acmeUrls.newAuthz
, newCertificateUrl: args._acmeUrls.newCert
, accountPrivateKeyPem: account.privateKeyPem
, domainPrivateKeyPem: domain.privateKeyPem
, domains: args.domains
/*
, getChallenge: function (domain, key, done) {
args.domains = [domain];
args.webrootPath = args.webrootPath || defaults.webrootPath;
handlers.getChallenge(args, key, done);
}
*/
, setChallenge: function (domain, key, value, done) {
args.domains = [domain];
args.webrootPath = args.webrootPath || defaults.webrootPath;
@ -199,9 +170,27 @@ function getCertificateAsync(account, args, defaults, handlers) {
args.webrootPath = args.webrootPath || defaults.webrootPath;
handlers.removeChallenge(args, key, done);
}
, newAuthorizationUrl: args._acmeUrls.newAuthz
, newCertificateUrl: args._acmeUrls.newCert
}).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 PromisA.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')
]);
});
console.log(liveDir);
console.log(result);
throw new Error("IMPLEMENTATION NOT COMPLETE");
});

7
package.json
View File

@ -34,16 +34,13 @@
"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": {
"node-forge": "^0.6.38",
"bluebird": "^3.0.6",
"homedir": "^0.6.0",
"letiny-core": "^1.0.1",
"mkdirp": "^0.5.1",
"pyconf": "^1.0.0",
"request": "^2.67.0",