205 lines
4.9 KiB
Markdown
205 lines
4.9 KiB
Markdown
Daplie is Taking Back the Internet!
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--------------
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[](https://daplie.com/preorder/)
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Stop serving the empire and join the rebel alliance!
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* [Invest in Daplie on Wefunder](https://daplie.com/invest/)
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* [Pre-order Cloud](https://daplie.com/preorder/), The World's First Home Server for Everyone
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le-sni-auto
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===========
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An auto-sni strategy for registering and renewing letsencrypt certificates using SNICallback.
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This does a couple of rather simple things:
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* caches certificates in memory
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* calls `getCertificatesAsync(domain, null)` when a certificate is not in memory
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* calls `getCertificatesASync(domain, certs)` when a certificate is up for renewal or expired
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Install
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=======
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```bash
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npm install --save le-sni-auto@2.x
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```
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Usage
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=====
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With node-letsencrypt
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---------------------
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```javascript
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'use strict';
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var leSni = require('le-sni-auto').create({
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renewWithin: 10 * 24 * 60 * 60 1000 // do not renew more than 10 days before expiration
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, renewBy: 5 * 24 * 60 * 60 1000 // do not wait more than 5 days before expiration
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, tlsOptions: {
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rejectUnauthorized: true // These options will be used with tls.createSecureContext()
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, requestCert: false // in addition to key (privkey.pem) and cert (cert.pem + chain.pem),
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, ca: null // which are provided by letsencrypt
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, crl: null
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}
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});
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var le = require('letsencrypt').create({
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server: 'staging'
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, sni: leSni
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, approveDomains: function (domain, cb) {
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// here you would lookup details such as email address in your db
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cb(null, { email: 'john.doe@gmail.com.', domains: [domain, 'www.' + domain], agreeTos: true }}
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}
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});
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var redirectHttps = require('redirect-https').create();
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http.createServer(le.middleware(redirectHttps));
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var app = require('express')();
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https.createServer(le.httpsOptions, le.middleware(app)).listen(443);
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```
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You can also provide a thunk-style `getCertificates(domain, certs, cb)`.
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Standalone
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----------
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```javascript
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'use strict';
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var leSni = require('le-sni-auto').create({
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renewWithin: 10 * 24 * 60 * 60 1000 // do not renew prior to 10 days before expiration
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, renewBy: 5 * 24 * 60 * 60 1000 // do not wait more than 5 days before expiration
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// key (privkey.pem) and cert (cert.pem + chain.pem) will be provided by letsencrypt
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, tlsOptions: { rejectUnauthorized: true, requestCert: false, ca: null, crl: null }
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, getCertificatesAsync: function (domain, certs) {
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// return a promise with an object with the following keys:
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// { privkey, cert, chain, expiresAt, issuedAt, subject, altnames }
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}
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});
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// some default certificates that work with localhost
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// (because default certificates are required as a fallback)
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var httpsOptions = require('localhost.daplie.com-certificates').merge({
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SNICallback: leSni.sniCallback
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});
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https.createServer(httpsOptions, app);
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```
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You can also provide a thunk-style `getCertificates(domain, certs, cb)`.
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API
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===
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* create(options)
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* `getCertificates(domain, certs, cb)` or `getCertificatesAsync(domain, certs)`
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* `renewWithin` (default 7 days, min 3 days)
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* `renewBy` (default 2 days, min 12 hours)
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* `sniCallback(domain, cb)`
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* `cacheCerts(certs)`
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* `uncacheDomain(domain)`
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.renewWithin
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-----------
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Specifies the maximum amount of time (in ms) before
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the certificate expires to renew it.
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Say the cert expires in 90 days and you would like
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to renew, **at earliest** 10 days before it expires.
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You would set this to `10 * 24 * 60 * 60 * 1000`.
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.renewBy
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--------
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Specifies the maximum amount of time (in ms) before
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the certificate expires to renew it.
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Say the cert expires in 90 days and you would like
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to renew, **at latest** 10 days before it expires.
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You would set this to `10 * 24 * 60 * 60 * 1000`.
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**MUST** be **less than** `renewWithin`.
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.sniCallback()
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-----------
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This gets passed to `https.createServer(httpsOptions, app)` as `httpsOptions.SNICallback`.
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```javascript
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var leSni = require('le-sni-auto').create({
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renewWithin: 10 * 24 * 60 * 60 1000
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});
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var httpsOptions = require('localhost.daplie.com-certificates').merge({
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SNICallback: leSni.sniCallback
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});
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function app(req, res) {
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res.end("Hello, World!");
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}
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https.createServer(httpsOptions, app);
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```
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.cacheCerts()
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-----------
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Manually load a certificate into the cache.
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This is useful in a cluster environment where the master
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may wish to inform multiple workers of a new or renewed certificate,
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or to satisfy tls-sni-01 challenges.
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```
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leSni.cacheCerts({
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, privkey: '<<privkey.pem>>'
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, cert: '<<cert.pem + chain.pem>>'
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, subject: 'example.com'
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, altnames: [ 'example.com', 'www.example.com' ]
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, issuedAt: 1470975565000
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, expiresAt: 1478751565000
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, auto: true
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});
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```
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.uncacheCerts()
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-----------
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Remove cached certificates from the cache.
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This is useful once a tls-sni-01 challenge has been satisfied.
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```
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leSni.uncacheCerts({
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, subject: 'example.com'
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, altnames: [ 'example.com', 'www.example.com' ]
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});
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```
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