coolaj86/greenlock-express.js
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simplify

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AJ ONeal 2016-02-15 18:11:48 -07:00
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README.md
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@ -6,6 +6,7 @@ Free SSL and managed or automatic HTTPS for node.js with Express, Koa, Connect,
* **registrations** require an **approval callback** in *production*
* Automatic Renewal (around 80 days)
* **renewals** are *fully automatic* and happen in the *background*, with **no downtime**
* Automatic vhost / virtual hosting
All you have to do is start the webserver and then visit it at it's domain name.
@ -17,17 +18,19 @@ npm install --save letsencrypt-express
## Usage
* standalone
* express
* http / https
* http / http2
* koa
### Setup
```javascript
'use strict';
// Note: using staging server url, remove .testing() for production
var lex = require('letsencrypt-express').testing();
// A happy little express app
var app = require('express')();
app.use(function (req, res) {
res.send({ success: true });
});
var LEX = require('letsencrypt-express').testing();
function approveRegistration(hostname, cb) {
// Note: this is the place to check your database to get the user associated with this domain
@ -38,17 +41,10 @@ function approveRegistration(hostname, cb) {
});
}
lex.create({
configDir: '/etc/letsencrypt'
, onRequest: app
var lex = LEX.create({
configDir: require('os').homedir() + '/letsencrypt/etc'
, approveRegistration: approveRegistration // leave `null` to disable automatic registration
}).listen([80], [443, 5001], function () {
console.log("ENCRYPT __ALL__ THE DOMAINS!");
});
// NOTE:
// `~/letsencrypt/etc` is the default `configDir`
// ports 80, 443, and 5001 are the default ports to listen on.
```
**WARNING**: If you don't do any checks and simply complete `approveRegistration` callback, an attacker will spoof SNI packets with bad hostnames and that will cause you to be rate-limited and or blocked from the ACME server.
@ -65,33 +61,49 @@ letsencrypt certonly --standalone \
Note: the `--webrootPath` option is also available if you don't want to shut down your webserver to get the cert.
## Examples
### Standalone
* https / express
* http2 / express
* koa
```javascript
lex.onRequest = function (req, res) {
res.end('Hello, World!');
};
lex.listen([80], [443, 5001], function () {
console.log("ENCRYPT __ALL__ THE DOMAINS!");
});
// NOTE:
// `~/letsencrypt/etc` is the default `configDir`
// ports 80, 443, and 5001 are the default ports to listen on.
```
## Express
```javascript
// A happy little express app
var app = require('express')();
app.use(function (req, res) {
res.send({ success: true });
});
lex.onRequest = app;
lex.listen([80], [443, 5001], function () {
var protocol = ('requestCert' in this) ? 'https': 'http';
console.log("Listening at " + protocol + '://localhost:' + this.address().port);
});
```
### Use with raw http / https modules
Let's say you want to redirect all http to https.
```javascript
var LEX = require('letsencrypt-express');
var http = require('http');
var https = require('http2');
// NOTE: you could use the old https module if for some reason you don't want to support modern browsers
var lex = LEX.create({
configDir: __dirname + '/letsencrypt.config'
, approveRegistration: function (hostname, cb) {
cb(null, {
domains: [hostname]
, email: 'CHANGE_ME' // 'user@example.com'
, agreeTos: true
});
}
});
function redirectHttp() {
http.createServer(LEX.createAcmeResponder(lex, function redirectHttps(req, res) {
res.setHeader('Location', 'https://' + req.headers.host + req.url);
@ -113,49 +125,19 @@ redirectHttp();
serveHttps();
```
In short these are the only functions you need to be aware of:
* `LEX.create(opts)`
* `{ configDir: pathname, approveRegistration: func }`
* `LEX.createAcmeResponder(lex, onRequest)`
### Using with Koa
### Let's Encrypt with Koa
```javascript
'use strict';
// Note: using staging server url, remove .testing() for production
var lex = require('letsencrypt-express').testing();
var koa = require('koa');
var app = koa();
app.use(function *(){
app.use(function *() {
this.body = 'Hello World';
});
lex.create({
configDir: './letsencrypt.config' // ~/letsencrypt, /etc/letsencrypt, whatever you want
, onRequest: app.callback() // your koa app callback
, letsencrypt: null // you can provide you own instance of letsencrypt
// if you need to configure it (with an agreeToTerms
// callback, for example)
, approveRegistration: function (hostname, cb) { // PRODUCTION MODE needs this function, but only if you want
// automatic registration (usually not necessary)
// renewals for registered domains will still be automatic
cb(null, {
domains: [hostname]
, email: 'user@example.com'
, agreeTos: true // you
});
}
}).listen([], [4443], function () {
var server = this;
var protocol = ('requestCert' in server) ? 'https': 'http';
console.log("Listening at " + protocol + '://localhost:' + this.address().port);
var server = require('http2').createServer(lex.httpsOptions, LEX.createAcmeResponder(lex, app.callback()));
server.listen(443, function () {
console.log('Listening at https://localhost:' + this.address().port);
});
```
@ -165,11 +147,12 @@ Note: you don't need to create websockets for the plain ports.
```javascript
var WebSocketServer = require('ws').Server;
var https = require('http2');
var server = https.createServer(lex.httpsOptions, LEX.createAcmeResponder(lex, app));
var wss = new WebSocketServer({ server: server });
results.tlsServers.forEach(function (server) {
var wss = new WebSocketServer({ server: server });
wss.on('connection', onConnection);
});
wss.on('connection', onConnection);
server.listen(443);
function onConnection(ws) {
var location = url.parse(ws.upgradeReq.url, true);