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acme-dns-01-test.js
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v3.2.0: test zones(), remove most http-01 docs

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AJ ONeal 2019-06-13 00:36:53 -06:00
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117
README.md
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@ -1,27 +1,33 @@
# [acme-challenge-test](https://git.rootprojects.org/root/acme-challenge-test.js.git) | a [Root](https://rootprojects.org) project
# [acme-dns-01-test](https://git.rootprojects.org/root/acme-dns-01-test.js.git) | a [Root](https://rootprojects.org) project
The test harness you should use when writing an ACME challenge strategy
for [ACME.js](https://git.coolaj86.com/coolaj86/acme-v2.js) and also [Greenlock](https://git.coolaj86.com/coolaj86/greenlock-express.js) v2.7+ (and v3).
An ACME dns-01 test harness for Let's Encrypt integrations.
All implementations MUST pass these tests, which is a very easy thing to do (just `set()`, `get()`, and `remove()`).
This was specificially designed for [ACME.js](https://git.coolaj86.com/coolaj86/acme-v2.js) and [Greenlock.js](https://git.coolaj86.com/coolaj86/greenlock-express.js), but will be generically useful to any ACME module.
Passing the tests is very easy. There are just four functions to implement:
- `zones()` - list domain zones (i.e. example.co.uk, example.com)
- `set()` - set a TXT record in a zone (i.e. `_acme-challenge.foo` in `example.com`)
- `get()` - confirm that the record was set
- `remove()` - clean up after the ACME challenge passes
The tests account for single-domain certificates (`example.com`) as well as multiple domain certs (SAN / AltName),
wildcards (`*.example.com`), and valid private / localhost certificates. No worries on your end, just pass the tests. 👌
**Node v6 Support**: Please build community plugins using node v6 / vanillajs to ensure that all acme.js and greenlock.js users are fully supported.
**Node v6 Support**: Please build community plugins using node v6 / vanillajs
to ensure that all acme.js and greenlock.js users are fully supported.
## Install
```bash
npm install --save-dev acme-challenge-test@3.x
npm install --save-dev acme-dns-01-test@3.x
```
## Usage
```js
var tester = require('acme-challenge-test');
var tester = require('acme-dns-01-test');
//var challenger = require('acme-http-01-cli').create({});
//var challenger = require('acme-dns-01-cli').create({});
var challenger = require('./YOUR-CHALLENGE-STRATEGY').create({
YOUR_TOKEN_OPTION: 'SOME_API_KEY'
@ -52,14 +58,18 @@ tester.testRecord('dns-01', record, challenger).then(function() {
These are plugins that use the v2.7+ (v3) API, and pass this test harness,
which you should use as a model for any plugins that you create.
- [`acme-http-01-cli`](https://git.rootprojects.org/root/acme-http-01-cli.js)
- dns-01
- [`acme-dns-01-cli`](https://git.rootprojects.org/root/acme-dns-01-cli.js)
- [`acme-dns-01-digitalocean`](https://git.rootprojects.org/root/acme-dns-01-digitalocean.js)
- http-01
- [`acme-http-01-cli`](https://git.rootprojects.org/root/acme-http-01-cli.js)
- [`acme-http-01-fs`](https://git.rootprojects.org/root/acme-http-01-fs.js)
You can find other implementations by searching npm for [acme-http-01-](https://www.npmjs.com/search?q=acme-http-01-)
and [acme-dns-01-](https://www.npmjs.com/search?q=acme-dns-01-).
If you are building a plugin, please let us know.
We would like to co-author and help maintain and promote your module.
We may like to co-author and help maintain and promote your module.
## Example
@ -70,14 +80,21 @@ See `example.js` (it works).
Here's what you could start with.
```js
var tester = require('acme-challenge-test');
var tester = require('acme-dns-01-test');
// The dry-run tests can pass on, literally, 'example.com'
// but the integration tests require that you have control over the domain
var domain = 'example.com';
var zone = 'example.com';
tester
.testRecord('http-01', domain, {
.testZone('dns-01', zone, {
// Should return an array of zone domain name strings
// (APIs that don't implement zones, such as DuckDNS, should return an empty array)
zones: function(opts) {
console.log('dnsHosts:', opts.dnsHosts);
throw new Error('_zone not implemented');
},
// Should set a TXT record for dnsHost with dnsAuthorization and ttl || 300
set: function(opts) {
console.log('set opts:', opts);
@ -93,6 +110,7 @@ tester
},
// Should get the record via the DNS server's API
// (Note: gets different options than set or remove)
get: function(opts) {
console.log('get opts:', opts);
throw new Error('get not implemented');
@ -105,16 +123,20 @@ tester
## dns-01 vs http-01
For `type` dns-01:
// `dnsHost` is the domain/subdomain/host
// `dnsAuthorization` is the value of the TXT record
// `dnsPrefix` is the record-only part, if `zones()` is implemented
// `dnsZone` is the zone-only part, if `zones()` is implemented
For `type` http-01:
// `altname` is the name of the domain
// `token` is the name of the file ( .well-known/acme-challenge/`token` )
// `keyAuthorization` is the contents of the file
For `type` dns-01:
// `dnsHost` is the domain/subdomain/host
// `dnsAuthorization` is the value of the TXT record
See [acme-http-01-test.js](https://git.rootprojects.org/root/acme-dns-01-test.js.git).
## Detailed Overview
@ -123,41 +145,55 @@ Here's a quick pseudo stub-out of what a test-passing plugin object might look l
```js
tester
.testZone('dns-01', 'example.com', {
zones: function(opts) {
// { dnsHosts: [
// '_acme-challenge.foo.example.com',
// '_acme-challenge.bar.example.com'
// ] }
return YourApi(
'GET',
// Most Domain Zone apis don't have a search or filter option,
// but `opts` includes list of dnsHosts is provided just in case.
'https://exampledns.com/api/dns/zones?search=' + opts.dnsHosts.join(',')
).then(function(result) {
return result.zones.map(function(zone) {
return zone.name;
});
});
},
set: function(opts) {
var ch = opts.challenge;
// { type: 'dns-01' // or 'http-01'
// , identifier: { type: 'dns', value: 'example.com' }
// { type: 'dns-01'
// , identifier: { type: 'dns', value: 'foo.example.com' }
// , wildcard: false
// , token: 'xxxx'
// , keyAuthorization: 'xxxx.yyyy'
// , dnsHost: '_acme-challenge.example.com'
// , dnsHost: '_acme-challenge.foo.example.com'
// , dnsPrefix: '_acme-challenge.foo'
// , dnsZone: 'example.com'
// , dnsAuthorization: 'zzzz' }
return YourApi('POST', 'https://example.com/api/dns/txt', {
host: ch.dnsHost,
record: ch.dnsAuthorization
});
return YourApi(
'POST',
'https://exampledns.com/api/dns/txt/' + ch.dnsZone + '/' + ch.dnsPrefix,
{ value: ch.dnsAuthorization }
);
},
get: function(query) {
var ch = query.challenge;
// { type: 'dns-01' // or 'http-01', 'tls-alpn-01', etc
// , identifier: { type: 'dns', value: 'example.com' }
// // http-01 only
// , token: 'xxxx'
// , url: '...' // for testing and debugging
// // dns-01 only, for testing / dubgging
// { type: 'dns-01'
// , identifier: { type: 'dns', value: 'foo.example.com' }
// , altname: '...'
// , dnsHost: '...'
// , wildcard: false }
// Note: query.identifier.value is different for http-01 than for dns-01
// because of how a DNS query is different from an HTTP request
return YourApi('GET', 'https://example.com/api/dns/txt', {
host: ch.dnsHost
}).then(function(secret) {
// http-01
//return { keyAuthorization: secret };
// dns-01
return YourApi(
'GET',
'https://exampledns.com/api/dns/txt/' + ch.dnsZone + '/' + ch.dnsPrefix
).then(function(secret) {
return { dnsAuthorization: secret };
});
},
@ -166,7 +202,10 @@ tester
var ch = opts.challenge;
// same options as in `set()` (which are not the same as `get()`
return YourApi('DELETE', 'https://example.com/api/dns/txt/' + ch.dnsHost);
return YourApi(
'DELETE',
'https://exampledns.com/api/dns/txt/' + ch.dnsZone + '/' + ch.dnsPrefix
);
}
})
.then(function() {

12
example.js
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@ -1,21 +1,21 @@
'use strict';
//var tester = require('acme-challenge-test');
//var tester = require('acme-dns-01-test');
var tester = require('./');
//var type = 'http-01';
//var challenger = require('acme-http-01-cli').create({});
var type = 'dns-01';
var challenger = require('acme-dns-01-cli').create({});
//var challenger = require('./YOUR-CHALLENGE-STRATEGY').create({});
//var type = 'YOUR-TYPE-01';
// The dry-run tests can pass on, literally, 'example.com'
// but the integration tests require that you have control over the domain
var zone = 'example.com';
tester
.test(type, zone, challenger)
// Will test these domain records
// - example.com
// - foo.example.com
// - *.foo.example.com
.testZone(type, zone, challenger)
.then(function() {
console.info('ALL PASSED');
})

283
index.js
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@ -1,284 +1,3 @@
'use strict';
/*global Promise*/
var crypto = require('crypto');
module.exports.create = function() {
throw new Error(
'acme-challenge-test is a test fixture for acme-challenge-* plugins, not a plugin itself'
);
};
// ignore all of this, it's just to normalize Promise vs node-style callback thunk vs synchronous
function promiseCheckAndCatch(obj, name) {
var promisify = require('util').promisify;
// don't loose this-ness, just in case that's important
var fn = obj[name].bind(obj);
var promiser;
// function signature must match, or an error will be thrown
if (1 === fn.length) {
// wrap so that synchronous errors are caught (alsa handles synchronous results)
promiser = function(opts) {
return Promise.resolve().then(function() {
return fn(opts);
});
};
} else if (2 === fn.length) {
// wrap as a promise
promiser = promisify(fn);
} else {
return Promise.reject(
new Error(
"'challenge." +
name +
"' should accept either one argument, the options," +
' and return a Promise or accept two arguments, the options and a node-style callback thunk'
)
);
}
function shouldntBeNull(result) {
if ('undefined' === typeof result) {
throw new Error(
"'challenge.'" +
name +
"' should never return `undefined`. Please explicitly return null" +
" (or fix the place where a value should have been returned but wasn't)."
);
}
return result;
}
return function(opts) {
return promiser(opts).then(shouldntBeNull);
};
}
function mapAsync(els, doer) {
els = els.slice(0);
var results = [];
function next() {
var el = els.shift();
if (!el) {
return results;
}
return doer(el).then(function(result) {
results.push(result);
return next();
});
}
return next();
}
// Here's the meat, where the tests are happening:
function testEach(type, domains, challenger) {
var chr = wrapChallenger(challenger);
var all = domains.map(function(d) {
return { domain: d };
});
var rnd = crypto.randomBytes(2).toString('hex');
return mapAsync(all, function(opts) {
console.info("TEST '%s'", opts.domain);
opts.challenge = fakeChallenge(type, opts.domain, rnd);
var ch = opts.challenge;
if ('http-01' === ch.type && ch.wildname) {
throw new Error('http-01 cannot be used for wildcard domains');
}
// The first time we just check it against itself
// this will cause the prompt to appear
return chr.set(opts).then(function() {
// this will cause the final completion message to appear
// _test is used by the manual cli reference implementations
var query = { type: ch.type, /*debug*/ status: ch.status, _test: true };
if ('http-01' === ch.type) {
query.identifier = ch.identifier;
query.token = ch.token;
// For testing only
query.url = ch.challengeUrl;
} else if ('dns-01' === ch.type) {
query.identifier = { type: 'dns', value: ch.dnsHost };
// For testing only
query.altname = ch.altname;
// there should only be two possible TXT records per challenge domain:
// one for the bare domain, and the other if and only if there's a wildcard
query.wildcard = ch.wildcard;
query.dnsAuthorization = ch.dnsAuthorization;
} else {
query = JSON.parse(JSON.stringify(ch));
query.comment = 'unknown challenge type, supplying everything';
}
opts.query = query;
return opts;
});
})
.then(function(all) {
return mapAsync(all, function(opts) {
var ch = opts.challenge;
return chr.get({ challenge: opts.query }).then(function(secret) {
if ('string' === typeof secret) {
console.info(
'secret was passed as a string, which works historically, but should be an object instead:'
);
console.info('{ "keyAuthorization": "' + secret + '" }');
console.info('or');
// TODO this should be "keyAuthorizationDigest"
console.info('{ "dnsAuthorization": "' + secret + '" }');
console.info(
'This is to help keep acme / greenlock (and associated plugins) future-proof for new challenge types'
);
}
// historically 'secret' has been a string, but I'd like it to transition to be an object.
// to make it backwards compatible in v2.7 to change it,
// so I'm not sure that we really need to.
if ('http-01' === ch.type) {
secret = secret.keyAuthorization || secret;
if (ch.keyAuthorization !== secret) {
throw new Error(
"http-01 challenge.get() returned '" +
secret +
"', which does not match the keyAuthorization" +
" saved with challenge.set(), which was '" +
ch.keyAuthorization +
"'"
);
}
} else if ('dns-01' === ch.type) {
secret = secret.dnsAuthorization || secret;
if (ch.dnsAuthorization !== secret) {
throw new Error(
"dns-01 challenge.get() returned '" +
secret +
"', which does not match the dnsAuthorization" +
" (keyAuthDigest) saved with challenge.set(), which was '" +
ch.dnsAuthorization +
"'"
);
}
} else {
if ('tls-alpn-01' === ch.type) {
console.warn(
"'tls-alpn-01' support is in development" +
" (or developed and we haven't update this yet). Please contact us."
);
} else {
console.warn(
"We don't know how to test '" +
ch.type +
"'... are you sure that's a thing?"
);
}
secret = secret.keyAuthorization || secret;
if (ch.keyAuthorization !== secret) {
console.warn(
"The returned value doesn't match keyAuthorization",
ch.keyAuthorization,
secret
);
}
}
});
});
})
.then(function() {
return mapAsync(all, function(opts) {
return chr.remove(opts).then(function() {
return chr.get(opts).then(function(result) {
if (result) {
throw new Error(
'challenge.remove() should have made it not possible for challenge.get() to return a value'
);
}
if (null !== result) {
throw new Error(
'challenge.get() should return null when the value is not set'
);
}
console.info("PASS '%s'", opts.domain);
});
});
});
})
.then(function() {
console.info('All soft tests: PASS');
console.warn(
'Hard tests (actually checking http URLs and dns records) is implemented in acme-v2.'
);
console.warn(
"We'll copy them over here as well, but that's a TODO for next week."
);
});
}
function testZone(type, zone, challenger) {
var domains = [zone, 'foo.' + zone];
if ('dns-01' === type) {
domains.push('*.foo.' + zone);
}
return testEach(type, domains, challenger);
}
function wrapChallenger(challenger) {
var set = promiseCheckAndCatch(challenger, 'set');
if ('function' !== typeof challenger.get) {
throw new Error(
"'challenge.get' should be implemented for the sake of testing." +
' It should be implemented as the internal method for fetching the challenge' +
' (i.e. reading from a database, file system or API, not return internal),' +
' not the external check (the http call, dns query, etc), which will already be done as part of this test.'
);
}
var get = promiseCheckAndCatch(challenger, 'get');
var remove = promiseCheckAndCatch(challenger, 'remove');
return { set: set, get: get, remove: remove };
}
function fakeChallenge(type, altname, rnd) {
var expires = new Date(Date.now() + 10 * 60 * 1000).toISOString();
var token = crypto.randomBytes(8).toString('hex');
var thumb = crypto.randomBytes(16).toString('hex');
var keyAuth = token + '.' + crypto.randomBytes(16).toString('hex');
var dnsAuth = crypto
.createHash('sha256')
.update(keyAuth)
.digest('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=/g, '');
var challenge = {
type: type,
identifier: { type: 'dns', value: null }, // completed below
wildcard: false, // completed below
status: 'pending',
expires: expires,
token: token,
thumbprint: thumb,
keyAuthorization: keyAuth,
url: null, // completed below
dnsHost: '_' + rnd.slice(0, 2) + '-acme-challenge-' + rnd.slice(2) + '.', // completed below
dnsAuthorization: dnsAuth,
altname: altname,
_test: true // used by CLI referenced implementations
};
if ('*.' === altname.slice(0, 2)) {
challenge.wildcard = true;
altname = altname.slice(2);
}
challenge.identifier.value = altname;
challenge.url =
'http://' + altname + '/.well-known/acme-challenge/' + challenge.token;
challenge.dnsHost += altname;
return challenge;
}
function testRecord(type, altname, challenger) {
return testEach(type, [altname], challenger);
}
module.exports.testRecord = testRecord;
module.exports.testZone = testZone;
module.exports.test = testZone;
module.exports = require('acme-challenge-test');

5
package-lock.json generated
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@ -1,5 +0,0 @@
{
"name": "acme-challenge-test",
"version": "3.0.4",
"lockfileVersion": 1
}

14
package.json
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@ -1,15 +1,19 @@
{
"name": "acme-challenge-test",
"version": "3.1.2",
"description": "The base set of tests for all ACME challenge strategies. Any `acme-http-01-`, `acme-dns-01-`, `acme-challenge-`, or greenlock plugin should be able to pass these tests.",
"name": "acme-dns-01-test",
"version": "3.2.0",
"description": "ACME dns-01 tests for Let's Encrypt integration. Any `acme-dns-01-` plugin should be able to pass these tests.",
"main": "index.js",
"homepage": "https://git.rootprojects.org/root/acme-challenge-test.js",
"files": [
"example.js",
"lib"
],
"dependencies": {},
"devDependencies": {},
"dependencies": {
"acme-challenge-test": "^3.2.0"
},
"devDependencies": {
"acme-dns-01-cli": "^3.1.0"
},
"scripts": {
"test": "node example.js"
},