forked from root/acme.js
238 lines
7.8 KiB
Markdown
238 lines
7.8 KiB
Markdown
acme.js
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==========
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Free SSL for everybody. The bare essentials of the Let's Encrypt v2 (ACME draft 11) API. Built for [Greenlock](https://git.coolaj86.com/coolaj86/greenlock-express.js), [by request](https://git.coolaj86.com/coolaj86/greenlock.js/issues/5#issuecomment-8).
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| Sponsored by [ppl](https://ppl.family)
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| **acme.js** ([npm](https://www.npmjs.com/package/acme))
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| [Greenlock for Web Servers](https://git.coolaj86.com/coolaj86/greenlock-cli.js)
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| [Greenlock for Express.js](https://git.coolaj86.com/coolaj86/greenlock-express.js)
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| [Greenlock for API Integrations](https://git.coolaj86.com/coolaj86/greenlock.js)
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| [Greenlock for Web Browsers](https://git.coolaj86.com/coolaj86/greenlock.html)
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This is intented for building ACME API clients in node.js.
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Looking for Quick 'n' Easy™?
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=======
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If you're looking to *build* a *browser* client, try [Greenlock Web Browsers](https://git.coolaj86.com/coolaj86/greenlock.html).
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If you're looking to *build* a node.js *service* or *cli*, try [Greenlock for node.js](https://git.coolaj86.com/coolaj86/greenlock.js).
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If you're looking for an *ACME-enabled webserver*, try [Greenlock for Express.js](https://git.coolaj86.com/coolaj86/greenlock-express.js) or [goldilocks.js](https://git.coolaj86.com/coolaj86/goldilocks.js).
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* [Greenlock for Web Browsers](https://git.coolaj86.com/coolaj86/greenlock.html)
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* [Greenlock for node.js](https://git.coolaj86.com/coolaj86/greenlock.js)
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* [Greenlock for Express.js](https://git.coolaj86.com/coolaj86/greenlock-express.js)
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* [goldilocks.js](https://git.coolaj86.com/coolaj86/goldilocks.js)
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Let's Encrypt v2 / ACME draft 11 Support
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========
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This library (acme.js) supports ACME [*draft 11*](https://tools.ietf.org/html/draft-ietf-acme-acme-11),
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otherwise known as Let's Encrypt v2 (or v02).
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* ACME draft 11
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* Let's Encrypt v2
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* Let's Encrypt v02
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```
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# Production URL
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https://acme-v02.api.letsencrypt.org/directory
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```
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```
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# Staging URL
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https://acme-staging-v02.api.letsencrypt.org/directory
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```
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Demonstration
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=============
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As this is intended to build ACME clients, there is not a simple 2-line example.
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I'd recommend first trying out one of the [Greenlock for Web Servers](https://git.coolaj86.com/coolaj86/greenlock-cli.js)
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examples, which are guaranteed to work and have great error checking to help you debug.
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Then I'd recommend running the example CLI client with a test domain and then investigating the files used for that example:
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```bash
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git clone https://git.coolaj86.com/coolaj86/acme.js.git
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pushd acme.js/
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node examples/cli.js
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```
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The example cli has the following prompts:
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```
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What web address(es) would you like to get certificates for? (ex: example.com,*.example.com)
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What challenge will you be testing today? http-01 or dns-01? [http-01]
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What email should we use? (optional)
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What directoryUrl should we use? [https://acme-staging-v02.api.letsencrypt.org/directory]
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Put the string 'mBfh0SqaAV3MOK3B6cAhCbIReAyDuwuxlO1Sl70x6bM.VNAzCR4THe4czVzo9piNn73B1ZXRLaB2CESwJfKkvRM' into a file at 'example.com/.well-known/acme-challenge/mBfh0SqaAV3MOK3B6cAhCbIReAyDuwuxlO1Sl70x6bM'
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echo 'mBfh0SqaAV3MOK3B6cAhCbIReAyDuwuxlO1Sl70x6bM.VNAzCR4THe4czVzo9piNn73B1ZXRLaB2CESwJfKkvRM' > 'example.com/.well-known/acme-challenge/mBfh0SqaAV3MOK3B6cAhCbIReAyDuwuxlO1Sl70x6bM'
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Then hit the 'any' key to continue...
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```
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When you've completed the challenge you can hit a key to continue the process.
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If you place the certificate you receive back in `tests/fullchain.pem`
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then you can test it with `examples/https-server.js`.
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```
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examples/cli.js
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examples/genkeypair.js
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examples/https-server.js
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examples/http-server.js
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```
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Install
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=======
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Install via npm
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```bash
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npm install --save acme
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```
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Install via git
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```bash
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npm install https://git.coolaj86.com/coolaj86/acme.js.git
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```
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API
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===
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This API is an evolution of le-acme-core,
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but tries to provide a better mapping to the new draft 11 APIs.
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Status: Almost stable, but **not semver locked**.
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Patch versions will not introduce breaking changes,
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but may introduce lower-level APIs.
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Minor versions may change return values to include more information.
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Overview:
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```
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var ACME = require('acme').ACME;
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ACME.create(opts)
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acme.init(acmeDirectoryUrl)
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acme.accounts.create(opts)
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acme.certificates.create(opts)
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```
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Detailed Explanation:
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```
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var ACME = require('acme').ACME;
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// Create Instance (Dependency Injection)
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var acme = ACME.create({
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RSA: require('rsa-compat').RSA
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// other overrides
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, request: require('request')
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, promisify: require('util').promisify
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// used for constructing user-agent
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, os: require('os')
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, process: require('process')
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// used for overriding the default user-agent
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, userAgent: 'My custom UA String'
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, getUserAgentString: function (deps) { return 'My custom UA String'; }
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// don't try to validate challenges locally
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, skipChallengeTest: false
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});
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// Discover Directory URLs
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acme.init(acmeDirectoryUrl) // returns Promise<acmeUrls={keyChange,meta,newAccount,newNonce,newOrder,revokeCert}>
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// Accounts
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acme.accounts.create(options) // returns Promise<regr> registration data
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{ email: '<email>' // valid email (server checks MX records)
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, accountKeypair: { // privateKeyPem or privateKeyJwt
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privateKeyPem: '<ASCII PEM>'
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}
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, agreeToTerms: fn (tosUrl) {} // returns Promise with tosUrl
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}
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// Registration
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acme.certificates.create(options) // returns Promise<pems={ privkey (key), cert, chain (ca) }>
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{ newAuthzUrl: '<url>' // specify acmeUrls.newAuthz
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, newCertUrl: '<url>' // specify acmeUrls.newCert
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, domainKeypair: {
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privateKeyPem: '<ASCII PEM>'
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}
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, accountKeypair: {
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privateKeyPem: '<ASCII PEM>'
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}
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, domains: [ 'example.com' ]
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, setChallenge: fn (hostname, key, val) // return Promise
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, removeChallenge: fn (hostname, key) // return Promise
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}
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```
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Helpers & Stuff
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```javascript
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// Constants
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ACME.challengePrefixes['http-01'] // '/.well-known/acme-challenge'
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ACME.challengePrefixes['dns-01'] // '_acme-challenge'
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```
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Changelog
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---------
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* v1.0.8 - rename to acme.js
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* v1.0.7 - improved error handling again, after user testing
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* v1.0.6 - improved error handling
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* v1.0.5 - cleanup logging
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* v1.0.4 - v6- compat use `promisify` from node's util or bluebird
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* v1.0.3 - documentation cleanup
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* v1.0.2
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* use `options.contact` to provide raw contact array
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* made `options.email` optional
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* file cleanup
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* v1.0.1
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* Compat API is ready for use
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* Eliminate debug logging
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* Apr 10, 2018 - tested backwards-compatibility using greenlock.js
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* Apr 5, 2018 - export http and dns challenge tests
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* Apr 5, 2018 - test http and dns challenges (success and failure)
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* Apr 5, 2018 - test subdomains and its wildcard
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* Apr 5, 2018 - test two subdomains
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* Apr 5, 2018 - test wildcard
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* Apr 5, 2018 - completely match api for acme v1 (le-acme-core.js)
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* Mar 21, 2018 - *mostly* matches le-acme-core.js API
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* Mar 21, 2018 - can now accept values (not hard coded)
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* Mar 20, 2018 - SUCCESS - got a test certificate (hard-coded)
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* Mar 20, 2018 - download certificate
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* Mar 20, 2018 - poll for status
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* Mar 20, 2018 - finalize order (submit csr)
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* Mar 20, 2018 - generate domain keypair
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* Mar 20, 2018 - respond to challenges
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* Mar 16, 2018 - get challenges
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* Mar 16, 2018 - new order
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* Mar 15, 2018 - create account
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* Mar 15, 2018 - generate account keypair
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* Mar 15, 2018 - get nonce
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* Mar 15, 2018 - get directory
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