forked from root/acme.js
478 lines
16 KiB
JavaScript
478 lines
16 KiB
JavaScript
/*!
|
|
* acme-v2.js
|
|
* Copyright(c) 2018 AJ ONeal <aj@ppl.family> https://ppl.family
|
|
* Apache-2.0 OR MIT (and hence also MPL 2.0)
|
|
*/
|
|
'use strict';
|
|
/* globals Promise */
|
|
|
|
var defaults = {
|
|
productionServerUrl: 'https://acme-v02.api.letsencrypt.org/directory'
|
|
, stagingServerUrl: 'https://acme-staging-v02.api.letsencrypt.org/directory'
|
|
, acmeChallengePrefix: '/.well-known/acme-challenge/'
|
|
, knownEndpoints: [ 'keyChange', 'meta', 'newAccount', 'newNonce', 'newOrder', 'revokeCert' ]
|
|
, challengeType: 'http-01' // dns-01
|
|
, keyType: 'rsa' // ecdsa
|
|
, keySize: 2048 // 256
|
|
};
|
|
|
|
function create(deps) {
|
|
if (!deps) { deps = {}; }
|
|
deps.LeCore = {};
|
|
deps.pkg = deps.pkg || require('./package.json');
|
|
deps.os = deps.os || require('os');
|
|
deps.process = deps.process || require('process');
|
|
|
|
var uaDefaults = {
|
|
pkg: "Greenlock/" + deps.pkg.version
|
|
, os: " (" + deps.os.type() + "; " + deps.process.arch + " " + deps.os.platform() + " " + deps.os.release() + ")"
|
|
, node: " Node.js/" + deps.process.version
|
|
, user: ''
|
|
};
|
|
//var currentUAProps;
|
|
|
|
function getUaString() {
|
|
var userAgent = '';
|
|
|
|
//Object.keys(currentUAProps)
|
|
Object.keys(uaDefaults).forEach(function (key) {
|
|
userAgent += uaDefaults[key];
|
|
//userAgent += currentUAProps[key];
|
|
});
|
|
|
|
return userAgent.trim();
|
|
}
|
|
|
|
function getRequest(opts) {
|
|
if (!opts) { opts = {}; }
|
|
|
|
return deps.request.defaults({
|
|
headers: {
|
|
'User-Agent': opts.userAgent || getUaString()
|
|
}
|
|
});
|
|
}
|
|
|
|
var RSA = deps.RSA || require('rsa-compat').RSA;
|
|
deps.request = deps.request || require('request');
|
|
deps.promisify = deps.promisify || require('util').promisify;
|
|
|
|
var directoryUrl = deps.directoryUrl || defaults.stagingServerUrl;
|
|
var request = deps.promisify(getRequest({}));
|
|
|
|
var acme2 = {
|
|
getAcmeUrls: function () {
|
|
var me = this;
|
|
return request({ url: directoryUrl }).then(function (resp) {
|
|
me._directoryUrls = JSON.parse(resp.body);
|
|
me._tos = me._directoryUrls.meta.termsOfService;
|
|
return me._directoryUrls;
|
|
});
|
|
}
|
|
, getNonce: function () {
|
|
var me = this;
|
|
if (me._nonce) { return new Promise(function (resolve) { resolve(me._nonce); return; }); }
|
|
return request({ method: 'HEAD', url: me._directoryUrls.newNonce }).then(function (resp) {
|
|
me._nonce = resp.toJSON().headers['replay-nonce'];
|
|
return me._nonce;
|
|
});
|
|
}
|
|
// ACME RFC Section 7.3 Account Creation
|
|
/*
|
|
{
|
|
"protected": base64url({
|
|
"alg": "ES256",
|
|
"jwk": {...},
|
|
"nonce": "6S8IqOGY7eL2lsGoTZYifg",
|
|
"url": "https://example.com/acme/new-account"
|
|
}),
|
|
"payload": base64url({
|
|
"termsOfServiceAgreed": true,
|
|
"onlyReturnExisting": false,
|
|
"contact": [
|
|
"mailto:cert-admin@example.com",
|
|
"mailto:admin@example.com"
|
|
]
|
|
}),
|
|
"signature": "RZPOnYoPs1PhjszF...-nh6X1qtOFPB519I"
|
|
}
|
|
*/
|
|
, registerNewAccount: function (options) {
|
|
var me = this;
|
|
|
|
console.log('[acme-v2] registerNewAccount');
|
|
|
|
return me.getNonce().then(function () {
|
|
return new Promise(function (resolve, reject) {
|
|
|
|
function agree(err, tosUrl) {
|
|
if (err) { reject(err); return; }
|
|
if (me._tos !== tosUrl) {
|
|
err = new Error("You must agree to the ToS at '" + me._tos + "'");
|
|
err.code = "E_AGREE_TOS";
|
|
reject(err);
|
|
return;
|
|
}
|
|
|
|
var jwk = RSA.exportPublicJwk(options.accountKeypair);
|
|
var body = {
|
|
termsOfServiceAgreed: tosUrl === me._tos
|
|
, onlyReturnExisting: false
|
|
, contact: [ 'mailto:' + options.email ]
|
|
};
|
|
if (options.externalAccount) {
|
|
body.externalAccountBinding = RSA.signJws(
|
|
options.externalAccount.secret
|
|
, undefined
|
|
, { alg: "HS256"
|
|
, kid: options.externalAccount.id
|
|
, url: me._directoryUrls.newAccount
|
|
}
|
|
, new Buffer(JSON.stringify(jwk))
|
|
);
|
|
}
|
|
var payload = JSON.stringify(body);
|
|
var jws = RSA.signJws(
|
|
options.accountKeypair
|
|
, undefined
|
|
, { nonce: me._nonce
|
|
, alg: 'RS256'
|
|
, url: me._directoryUrls.newAccount
|
|
, jwk: jwk
|
|
}
|
|
, new Buffer(payload)
|
|
);
|
|
|
|
console.log('[acme-v2] registerNewAccount JSON body:');
|
|
delete jws.header;
|
|
console.log(jws);
|
|
me._nonce = null;
|
|
return request({
|
|
method: 'POST'
|
|
, url: me._directoryUrls.newAccount
|
|
, headers: { 'Content-Type': 'application/jose+json' }
|
|
, json: jws
|
|
}).then(function (resp) {
|
|
me._nonce = resp.toJSON().headers['replay-nonce'];
|
|
var location = resp.toJSON().headers.location;
|
|
console.log('[DEBUG] new account location:'); // the account id url
|
|
console.log(location); // the account id url
|
|
console.log(resp.toJSON());
|
|
me._kid = location;
|
|
return resp.body;
|
|
}).then(resolve);
|
|
}
|
|
|
|
console.log('[acme-v2] agreeToTerms');
|
|
options.agreeToTerms(me._tos, agree);
|
|
});
|
|
});
|
|
}
|
|
/*
|
|
POST /acme/new-order HTTP/1.1
|
|
Host: example.com
|
|
Content-Type: application/jose+json
|
|
|
|
{
|
|
"protected": base64url({
|
|
"alg": "ES256",
|
|
"kid": "https://example.com/acme/acct/1",
|
|
"nonce": "5XJ1L3lEkMG7tR6pA00clA",
|
|
"url": "https://example.com/acme/new-order"
|
|
}),
|
|
"payload": base64url({
|
|
"identifiers": [{"type:"dns","value":"example.com"}],
|
|
"notBefore": "2016-01-01T00:00:00Z",
|
|
"notAfter": "2016-01-08T00:00:00Z"
|
|
}),
|
|
"signature": "H6ZXtGjTZyUnPeKn...wEA4TklBdh3e454g"
|
|
}
|
|
*/
|
|
, _getChallenges: function (options, auth) {
|
|
console.log('\n[DEBUG] getChallenges\n');
|
|
return request({ method: 'GET', url: auth, json: true }).then(function (resp) {
|
|
return resp.body;
|
|
});
|
|
}
|
|
// https://tools.ietf.org/html/draft-ietf-acme-acme-10#section-7.5.1
|
|
, _postChallenge: function (options, identifier, ch) {
|
|
var me = this;
|
|
|
|
var body = { };
|
|
|
|
var payload = JSON.stringify(body);
|
|
|
|
var thumbprint = RSA.thumbprint(options.accountKeypair);
|
|
var keyAuthorization = ch.token + '.' + thumbprint;
|
|
// keyAuthorization = token || '.' || base64url(JWK_Thumbprint(accountKey))
|
|
// /.well-known/acme-challenge/:token
|
|
console.log('type:');
|
|
console.log(ch.type);
|
|
console.log('ch.token:');
|
|
console.log(ch.token);
|
|
console.log('thumbprint:');
|
|
console.log(thumbprint);
|
|
console.log('keyAuthorization:');
|
|
console.log(keyAuthorization);
|
|
|
|
return new Promise(function (resolve, reject) {
|
|
if (options.setupChallenge) {
|
|
options.setupChallenge(
|
|
{ identifier: identifier
|
|
, hostname: identifier.value
|
|
, type: ch.type
|
|
, token: ch.token
|
|
, thumbprint: thumbprint
|
|
, keyAuthorization: keyAuthorization
|
|
, dnsAuthorization: RSA.utils.toWebsafeBase64(
|
|
require('crypto').createHash('sha256').update(keyAuthorization).digest('base64')
|
|
)
|
|
}
|
|
, testChallenge
|
|
);
|
|
} else {
|
|
options.setChallenge(identifier.value, ch.token, keyAuthorization, testChallenge);
|
|
}
|
|
|
|
function testChallenge(err) {
|
|
if (err) { reject(err); return; }
|
|
|
|
// TODO put check dns / http checks here?
|
|
// http-01: GET https://example.org/.well-known/acme-challenge/{{token}} => {{keyAuth}}
|
|
// dns-01: TXT _acme-challenge.example.org. => "{{urlSafeBase64(sha256(keyAuth))}}"
|
|
|
|
function wait(ms) {
|
|
return new Promise(function (resolve) {
|
|
setTimeout(resolve, (ms || 1100));
|
|
});
|
|
}
|
|
|
|
function pollStatus() {
|
|
console.log('\n[DEBUG] statusChallenge\n');
|
|
return request({ method: 'GET', url: ch.url, json: true }).then(function (resp) {
|
|
console.error('poll: resp.body:');
|
|
console.error(resp.body);
|
|
|
|
if ('pending' === resp.body.status) {
|
|
console.log('poll: again');
|
|
return wait().then(pollStatus);
|
|
}
|
|
|
|
if ('valid' === resp.body.status) {
|
|
console.log('poll: valid');
|
|
try {
|
|
if (options.teardownChallenge) {
|
|
options.teardownChallenge(
|
|
{ identifier: identifier
|
|
, type: ch.type
|
|
, token: ch.token
|
|
}
|
|
, function () {}
|
|
);
|
|
} else {
|
|
options.removeChallenge(identifier.value, ch.token, function () {});
|
|
}
|
|
} catch(e) {}
|
|
return resp.body;
|
|
}
|
|
|
|
if (!resp.body.status) {
|
|
console.error("[acme-v2] (y) bad challenge state:");
|
|
}
|
|
else if ('invalid' === resp.body.status) {
|
|
console.error("[acme-v2] (x) invalid challenge state:");
|
|
}
|
|
else {
|
|
console.error("[acme-v2] (z) bad challenge state:");
|
|
}
|
|
|
|
return Promise.reject(new Error("[acme-v2] bad challenge state"));
|
|
});
|
|
}
|
|
|
|
console.log('\n[DEBUG] postChallenge\n');
|
|
//console.log('\n[DEBUG] stop to fix things\n'); return;
|
|
|
|
function post() {
|
|
var jws = RSA.signJws(
|
|
options.accountKeypair
|
|
, undefined
|
|
, { nonce: me._nonce, alg: 'RS256', url: ch.url, kid: me._kid }
|
|
, new Buffer(payload)
|
|
);
|
|
me._nonce = null;
|
|
return request({
|
|
method: 'POST'
|
|
, url: ch.url
|
|
, headers: { 'Content-Type': 'application/jose+json' }
|
|
, json: jws
|
|
}).then(function (resp) {
|
|
me._nonce = resp.toJSON().headers['replay-nonce'];
|
|
console.log('respond to challenge: resp.body:');
|
|
console.log(resp.body);
|
|
return wait().then(pollStatus).then(resolve, reject);
|
|
});
|
|
}
|
|
|
|
return wait(20 * 1000).then(post);
|
|
}
|
|
});
|
|
}
|
|
, _finalizeOrder: function (options, validatedDomains) {
|
|
console.log('finalizeOrder:');
|
|
var me = this;
|
|
|
|
var csr = RSA.generateCsrWeb64(options.domainKeypair, validatedDomains);
|
|
var body = { csr: csr };
|
|
var payload = JSON.stringify(body);
|
|
|
|
function wait(ms) {
|
|
return new Promise(function (resolve) {
|
|
setTimeout(resolve, (ms || 1100));
|
|
});
|
|
}
|
|
|
|
function pollCert() {
|
|
var jws = RSA.signJws(
|
|
options.accountKeypair
|
|
, undefined
|
|
, { nonce: me._nonce, alg: 'RS256', url: me._finalize, kid: me._kid }
|
|
, new Buffer(payload)
|
|
);
|
|
|
|
console.log('finalize:', me._finalize);
|
|
me._nonce = null;
|
|
return request({
|
|
method: 'POST'
|
|
, url: me._finalize
|
|
, headers: { 'Content-Type': 'application/jose+json' }
|
|
, json: jws
|
|
}).then(function (resp) {
|
|
me._nonce = resp.toJSON().headers['replay-nonce'];
|
|
|
|
console.log('order finalized: resp.body:');
|
|
console.log(resp.body);
|
|
|
|
if ('processing' === resp.body.status) {
|
|
return wait().then(pollCert);
|
|
}
|
|
|
|
if ('valid' === resp.body.status) {
|
|
me._expires = resp.body.expires;
|
|
me._certificate = resp.body.certificate;
|
|
|
|
return resp.body;
|
|
}
|
|
|
|
if ('invalid' === resp.body.status) {
|
|
console.error('cannot finalize: badness');
|
|
return;
|
|
}
|
|
|
|
console.error('(x) cannot finalize: badness');
|
|
return;
|
|
});
|
|
}
|
|
|
|
return pollCert();
|
|
}
|
|
, _getCertificate: function () {
|
|
var me = this;
|
|
return request({ method: 'GET', url: me._certificate, json: true }).then(function (resp) {
|
|
console.log('Certificate:');
|
|
console.log(resp.body);
|
|
return resp.body;
|
|
});
|
|
}
|
|
, getCertificate: function (options, cb) {
|
|
console.log('[acme-v2] DEBUG get cert 1');
|
|
var me = this;
|
|
|
|
if (!options.challengeTypes) {
|
|
if (!options.challengeType) {
|
|
cb(new Error("challenge type must be specified"));
|
|
return Promise.reject(new Error("challenge type must be specified"));
|
|
}
|
|
options.challengeTypes = [ options.challengeType ];
|
|
}
|
|
|
|
console.log('[acme-v2] getCertificate');
|
|
return me.getNonce().then(function () {
|
|
var body = {
|
|
identifiers: options.domains.map(function (hostname) {
|
|
return { type: "dns" , value: hostname };
|
|
})
|
|
//, "notBefore": "2016-01-01T00:00:00Z"
|
|
//, "notAfter": "2016-01-08T00:00:00Z"
|
|
};
|
|
|
|
var payload = JSON.stringify(body);
|
|
var jws = RSA.signJws(
|
|
options.accountKeypair
|
|
, undefined
|
|
, { nonce: me._nonce, alg: 'RS256', url: me._directoryUrls.newOrder, kid: me._kid }
|
|
, new Buffer(payload)
|
|
);
|
|
|
|
console.log('\n[DEBUG] newOrder\n');
|
|
me._nonce = null;
|
|
return request({
|
|
method: 'POST'
|
|
, url: me._directoryUrls.newOrder
|
|
, headers: { 'Content-Type': 'application/jose+json' }
|
|
, json: jws
|
|
}).then(function (resp) {
|
|
me._nonce = resp.toJSON().headers['replay-nonce'];
|
|
var location = resp.toJSON().headers.location;
|
|
console.log(location); // the account id url
|
|
console.log(resp.toJSON());
|
|
//var body = JSON.parse(resp.body);
|
|
me._authorizations = resp.body.authorizations;
|
|
me._order = location;
|
|
me._finalize = resp.body.finalize;
|
|
//console.log('[DEBUG] finalize:', me._finalize); return;
|
|
|
|
//return resp.body;
|
|
return Promise.all(me._authorizations.map(function (authUrl) {
|
|
return me._getChallenges(options, authUrl).then(function (results) {
|
|
// var domain = options.domains[i]; // results.identifier.value
|
|
var chType = options.challengeTypes.filter(function (chType) {
|
|
return results.challenges.some(function (ch) {
|
|
return ch.type === chType;
|
|
});
|
|
})[0];
|
|
var challenge = results.challenges.filter(function (ch) {
|
|
if (chType === ch.type) {
|
|
return ch;
|
|
}
|
|
})[0];
|
|
|
|
if (!challenge) {
|
|
return Promise.reject(new Error("Server didn't offer any challenge we can handle."));
|
|
}
|
|
|
|
return me._postChallenge(options, results.identifier, challenge);
|
|
});
|
|
})).then(function () {
|
|
var validatedDomains = body.identifiers.map(function (ident) {
|
|
return ident.value;
|
|
});
|
|
|
|
return me._finalizeOrder(options, validatedDomains);
|
|
}).then(function () {
|
|
return me._getCertificate().then(function (result) { cb(null, result); return result; }, cb);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
};
|
|
return acme2;
|
|
}
|
|
|
|
module.exports.ACME = {
|
|
create: create
|
|
};
|
|
Object.keys(defaults).forEach(function (key) {
|
|
module.exports.ACME[key] = defaults[key];
|
|
});
|