le-challenge-sni

le-challenge-sni
================

A strategy for node-letsencrypt for setting, retrieving, and clearing ACME
challenges by registering self-signed certs with the SNI handler.

It is designed to handle tls-sni-01 and tls-sni-02 challenges.

Install
-------

``bash
npm install --save le-challenge-sni@2.x
`

Usage
-----

`javascript
var leChallenge = require('le-challenge-sni').create({
debug: false
});

var LE = require('letsencrypt');

LE.create({
server: LE.stagingServerUrl
, challenge: leChallenge
});
`

le-challenge-sni requires the sni option to letsencrypt to have
cacheCerts and uncacheCerts methods. These are used to register/unregister
the certificates. The default le-sni-auto instance satisfies this
requirement.

It also requires the challengeType option to letsencrypt to be either
tls-sni-01 or tls-sni-02 and will generate and register certificates
accordingly.

Exposed Methods
---------------

For ACME Challenge:

* set(opts, domain, key, val, done)
* get(defaults, domain, key, done)
* remove(defaults, domain, key, done)

For node-letsencrypt internals:

* getOptions()` returns the user supplied options, if any (no effect)