forked from root/acme.js
448 lines
13 KiB
JavaScript
448 lines
13 KiB
JavaScript
/*!
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* acme-v2.js
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* Copyright(c) 2018 AJ ONeal <aj@ppl.family> https://ppl.family
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* Apache-2.0 OR MIT (and hence also MPL 2.0)
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*/
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'use strict';
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var defaults = {
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productionServerUrl: 'https://acme-v02.api.letsencrypt.org/directory'
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, stagingServerUrl: 'https://acme-staging-v02.api.letsencrypt.org/directory'
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, acmeChallengePrefix: '/.well-known/acme-challenge/'
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, knownEndpoints: [ 'keyChange', 'meta', 'newAccount', 'newNonce', 'newOrder', 'revokeCert' ]
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, challengeType: 'http-01' // dns-01
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, keyType: 'rsa' // ecdsa
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, keySize: 2048 // 256
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};
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function create(deps) {
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if (!deps) { deps = {}; }
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deps.LeCore = {};
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deps.pkg = deps.pkg || require('./package.json');
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deps.os = deps.os || require('os');
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deps.process = deps.process || require('process');
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var uaDefaults = {
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pkg: "Greenlock/" + deps.pkg.version
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, os: " (" + deps.os.type() + "; " + deps.process.arch + " " + deps.os.platform() + " " + deps.os.release() + ")"
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, node: " Node.js/" + deps.process.version
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, user: ''
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};
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//var currentUAProps;
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function getUaString() {
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var userAgent = '';
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//Object.keys(currentUAProps)
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Object.keys(uaDefaults).forEach(function (key) {
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userAgent += uaDefaults[key];
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//userAgent += currentUAProps[key];
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});
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return userAgent.trim();
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}
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function getRequest(opts) {
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if (!opts) { opts = {}; }
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return deps.request.defaults({
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headers: {
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'User-Agent': opts.userAgent || getUaString()
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}
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});
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}
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deps.request = deps.request || require('request');
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deps.promisify = deps.promisify || require('util').promisify;
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var directoryUrl = deps.directoryUrl || defaults.stagingServerUrl;
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var request = deps.promisify(getRequest({}));
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var crypto = require('crypto');
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RSA.signJws = RSA.generateJws = RSA.generateSignatureJws = RSA.generateSignatureJwk =
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function (keypair, payload, nonce) {
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var prot = {};
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if (nonce) {
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if ('string' === typeof nonce) {
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prot.nonce = nonce;
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} else {
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prot = nonce;
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}
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}
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keypair = RSA._internal.import(keypair);
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keypair = RSA._internal.importForge(keypair);
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keypair.publicKeyJwk = RSA.exportPublicJwk(keypair);
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// Compute JWS signature
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var protectedHeader = "";
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if (Object.keys(prot).length) {
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protectedHeader = JSON.stringify(prot); // { alg: prot.alg, nonce: prot.nonce, url: prot.url });
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}
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var protected64 = RSA.utils.toWebsafeBase64(new Buffer(protectedHeader).toString('base64'));
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var payload64 = RSA.utils.toWebsafeBase64(payload.toString('base64'));
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var raw = protected64 + "." + payload64;
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var sha256Buf = crypto.createHash('sha256').update(raw).digest();
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var sig64;
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if (RSA._URSA) {
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sig64 = RSA._ursaGenerateSig(keypair, sha256Buf);
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} else {
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sig64 = RSA._forgeGenerateSig(keypair, sha256Buf);
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}
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return {
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/*
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header: {
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alg: "RS256"
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, jwk: keypair.publicKeyJwk
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}
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*/
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protected: protected64
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, payload: payload64
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, signature: sig64
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};
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};
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var acme2 = {
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getAcmeUrls: function () {
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var me = this;
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return request({ url: directoryUrl }).then(function (resp) {
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me._directoryUrls = JSON.parse(resp.body);
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me._tos = me._directoryUrls.meta.termsOfService;
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return me._directoryUrls;
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});
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}
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, getNonce: function () {
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var me = this;
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return request({ method: 'HEAD', url: me._directoryUrls.newNonce }).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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return me._nonce;
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});
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}
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// ACME RFC Section 7.3 Account Creation
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/*
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{
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"protected": base64url({
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"alg": "ES256",
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"jwk": {...},
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"nonce": "6S8IqOGY7eL2lsGoTZYifg",
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"url": "https://example.com/acme/new-account"
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}),
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"payload": base64url({
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"termsOfServiceAgreed": true,
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"onlyReturnExisting": false,
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"contact": [
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"mailto:cert-admin@example.com",
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"mailto:admin@example.com"
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]
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}),
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"signature": "RZPOnYoPs1PhjszF...-nh6X1qtOFPB519I"
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}
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*/
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, registerNewAccount: function (options) {
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var me = this;
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var body = {
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termsOfServiceAgreed: true
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, onlyReturnExisting: false
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, contact: [ 'mailto:' + options.email ]
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/*
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"externalAccountBinding": {
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"protected": base64url({
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"alg": "HS256",
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"kid": /* key identifier from CA *//*,
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"url": "https://example.com/acme/new-account"
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}),
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"payload": base64url(/* same as in "jwk" above *//*),
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"signature": /* MAC using MAC key from CA *//*
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}
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*/
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};
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var payload = JSON.stringify(body, null, 2);
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var jws = RSA.signJws(
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options.keypair
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, new Buffer(payload)
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, { nonce: me._nonce, alg: 'RS256', url: me._directoryUrls.newAccount, jwk: RSA.exportPublicJwk(options.keypair) }
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);
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console.log('jws:');
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console.log(jws);
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return request({
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method: 'POST'
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, url: me._directoryUrls.newAccount
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, headers: { 'Content-Type': 'application/jose+json' }
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, json: jws
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}).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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var location = resp.toJSON().headers['location'];
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console.log(location); // the account id url
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console.log(resp.toJSON());
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me._kid = location;
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return resp.body;
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});
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}
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/*
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POST /acme/new-order HTTP/1.1
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Host: example.com
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Content-Type: application/jose+json
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{
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"protected": base64url({
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"alg": "ES256",
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"kid": "https://example.com/acme/acct/1",
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"nonce": "5XJ1L3lEkMG7tR6pA00clA",
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"url": "https://example.com/acme/new-order"
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}),
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"payload": base64url({
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"identifiers": [{"type:"dns","value":"example.com"}],
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"notBefore": "2016-01-01T00:00:00Z",
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"notAfter": "2016-01-08T00:00:00Z"
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}),
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"signature": "H6ZXtGjTZyUnPeKn...wEA4TklBdh3e454g"
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}
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*/
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, _getChallenges: function (options, auth) {
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console.log('\n[DEBUG] getChallenges\n');
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return request({ method: 'GET', url: auth, json: true }).then(function (resp) {
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console.log('Authorization:');
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console.log(resp.body.challenges);
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return resp.body.challenges;
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});
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}
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// https://tools.ietf.org/html/draft-ietf-acme-acme-10#section-7.5.1
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, _postChallenge: function (options, ch) {
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var me = this;
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var body = { };
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var payload = JSON.stringify(body);
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//var payload = JSON.stringify(body, null, 2);
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var jws = RSA.signJws(
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options.keypair
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, new Buffer(payload)
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, { nonce: me._nonce, alg: 'RS256', url: ch.url, kid: me._kid }
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);
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var thumbprint = RSA.thumbprint(options.keypair);
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var keyAuthorization = ch.token + '.' + thumbprint;
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// keyAuthorization = token || '.' || base64url(JWK_Thumbprint(accountKey))
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// /.well-known/acme-challenge/:token
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console.log('type:');
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console.log(ch.type);
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console.log('ch.token:');
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console.log(ch.token);
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console.log('thumbprint:');
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console.log(thumbprint);
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console.log('keyAuthorization:');
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console.log(keyAuthorization);
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/*
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options.setChallenge(ch.token, thumbprint, keyAuthorization, function (err) {
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});
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*/
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function wait(ms) {
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return new Promise(function (resolve) {
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setTimeout(resolve, (ms || 1100));
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});
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}
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function pollStatus() {
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console.log('\n[DEBUG] statusChallenge\n');
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return request({ method: 'GET', url: ch.url, json: true }).then(function (resp) {
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console.error('poll: resp.body:');
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console.error(resp.body);
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if ('pending' === resp.body.status) {
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console.log('poll: again');
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return wait().then(pollStatus);
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}
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if ('valid' === resp.body.status) {
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console.log('poll: valid');
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return resp.body;
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}
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if (!resp.body.status) {
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console.error("[acme-v2] (y) bad challenge state:");
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}
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else if ('invalid' === resp.body.status) {
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console.error("[acme-v2] (x) invalid challenge state:");
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}
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else {
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console.error("[acme-v2] (z) bad challenge state:");
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}
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});
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}
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console.log('\n[DEBUG] postChallenge\n');
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//console.log('\n[DEBUG] stop to fix things\n'); return;
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function post() {
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return request({
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method: 'POST'
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, url: ch.url
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, headers: { 'Content-Type': 'application/jose+json' }
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, json: jws
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}).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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console.log('respond to challenge: resp.body:');
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console.log(resp.body);
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return wait().then(pollStatus);
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});
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}
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return wait(20 * 1000).then(post);
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}
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, _finalizeOrder: function (options, validatedDomains) {
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console.log('finalizeOrder:');
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var me = this;
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var csr = RSA.generateCsrWeb64(options.certificateKeypair, validatedDomains);
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var body = { csr: csr };
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var payload = JSON.stringify(body);
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function wait(ms) {
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return new Promise(function (resolve) {
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setTimeout(resolve, (ms || 1100));
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});
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}
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function pollCert() {
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//var payload = JSON.stringify(body, null, 2);
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var jws = RSA.signJws(
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options.keypair
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, new Buffer(payload)
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, { nonce: me._nonce, alg: 'RS256', url: me._finalize, kid: me._kid }
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);
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console.log('finalize:', me._finalize);
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return request({
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method: 'POST'
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, url: me._finalize
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, headers: { 'Content-Type': 'application/jose+json' }
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, json: jws
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}).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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console.log('order finalized: resp.body:');
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console.log(resp.body);
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if ('processing' === resp.body.status) {
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return wait().then(pollCert);
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}
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if ('valid' === resp.body.status) {
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me._expires = resp.body.expires;
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me._certificate = resp.body.certificate;
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return resp.body;
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}
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if ('invalid' === resp.body.status) {
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console.error('cannot finalize: badness');
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return;
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}
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console.error('(x) cannot finalize: badness');
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return;
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});
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}
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return pollCert();
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}
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, _getCertificate: function (auth) {
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var me = this;
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return request({ method: 'GET', url: me._certificate, json: true }).then(function (resp) {
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console.log('Certificate:');
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console.log(resp.body);
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return resp.body;
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});
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}
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, getCertificate: function (options, cb) {
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var me = this;
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var body = {
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identifiers: [
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{ type: "dns" , value: "test.ppl.family" }
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/*
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, { type: "dns" , value: "example.net" }
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*/
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]
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//, "notBefore": "2016-01-01T00:00:00Z"
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//, "notAfter": "2016-01-08T00:00:00Z"
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};
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var payload = JSON.stringify(body);
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//var payload = JSON.stringify(body, null, 2);
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var jws = RSA.signJws(
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options.keypair
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, new Buffer(payload)
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, { nonce: me._nonce, alg: 'RS256', url: me._directoryUrls.newOrder, kid: me._kid }
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);
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console.log('\n[DEBUG] newOrder\n');
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return request({
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method: 'POST'
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, url: me._directoryUrls.newOrder
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, headers: { 'Content-Type': 'application/jose+json' }
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, json: jws
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}).then(function (resp) {
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me._nonce = resp.toJSON().headers['replay-nonce'];
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var location = resp.toJSON().headers['location'];
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console.log(location); // the account id url
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console.log(resp.toJSON());
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//var body = JSON.parse(resp.body);
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me._authorizations = resp.body.authorizations;
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me._order = location;
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me._finalize = resp.body.finalize;
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//console.log('[DEBUG] finalize:', me._finalize); return;
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//return resp.body;
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return Promise.all(me._authorizations.map(function (auth) {
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console.log('authz', auth);
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return me._getChallenges(options, auth).then(function (challenges) {
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var chp;
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challenges.forEach(function (ch) {
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if ('http-01' !== ch.type) {
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return;
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}
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chp = me._postChallenge(options, ch);
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});
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return chp;
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});
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})).then(function () {
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var validatedDomains = body.identifiers.map(function (ident) {
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return ident.value;
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});
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return me._finalizeOrder(options, validatedDomains);
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}).then(function () {
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return me._getCertificate();
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});
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});
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}
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};
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return acme2;
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}
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var RSA = require('rsa-compat').RSA;
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var acme2 = create();
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acme2.getAcmeUrls().then(function (body) {
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console.log(body);
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acme2.getNonce().then(function (nonce) {
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console.log(nonce);
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var options = {
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email: 'coolaj86@gmail.com'
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, keypair: RSA.import({ privateKeyPem: require('fs').readFileSync(__dirname + '/account.privkey.pem') })
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, certificateKeypair: RSA.import({ privateKeyPem: require('fs').readFileSync(__dirname + '/privkey.pem') })
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};
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acme2.registerNewAccount(options).then(function (account) {
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console.log(account);
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acme2.getCertificate(options, function () {
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console.log('got cert');
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});
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});
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});
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});
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