334 lines
9.6 KiB
JavaScript
334 lines
9.6 KiB
JavaScript
/*!
|
|
* letiny
|
|
* Copyright(c) 2015 Anatol Sommer <anatol@anatol.at>
|
|
* Some code used from https://github.com/letsencrypt/boulder/tree/master/test/js
|
|
* MPL 2.0
|
|
*/
|
|
'use strict';
|
|
|
|
module.exports.create = function (deps) {
|
|
var request=deps.request;
|
|
var toStandardB64 = deps.leUtils.toStandardB64;
|
|
var importPemPrivateKey = deps.leCrypto.importPemPrivateKey;
|
|
var thumbprinter = deps.leCrypto.thumbprint;
|
|
var generateCsr = deps.leCrypto.generateCsr || deps.leCrypto.generateCSR;
|
|
var Acme = deps.Acme;
|
|
|
|
function getCert(options, cb) {
|
|
var NOOP = function () {};
|
|
var log = options.debug ? console.log : NOOP;
|
|
var state={
|
|
validatedDomains:[]
|
|
, validAuthorizationUrls:[]
|
|
, newAuthzUrl: options.newAuthzUrl
|
|
, newCertUrl: options.newCertUrl
|
|
};
|
|
|
|
if (!options.newAuthzUrl) {
|
|
return handleErr(new Error("options.newAuthzUrl must be the authorization url"));
|
|
}
|
|
if (!options.newCertUrl) {
|
|
return handleErr(new Error("options.newCertUrl must be the new certificate url"));
|
|
}
|
|
if (!options.accountPrivateKeyPem) {
|
|
return handleErr(new Error("options.accountPrivateKeyPem must be an ascii private key pem"));
|
|
}
|
|
if (!options.domainPrivateKeyPem) {
|
|
return handleErr(new Error("options.domainPrivateKeyPem must be an ascii private key pem"));
|
|
}
|
|
if (!options.setChallenge) {
|
|
return handleErr(new Error("options.setChallenge must be function(hostname, challengeKey, tokenValue, done) {}"));
|
|
}
|
|
if (!options.removeChallenge) {
|
|
return handleErr(new Error("options.removeChallenge must be function(hostname, challengeKey, done) {}"));
|
|
}
|
|
if (!(options.domains && options.domains.length)) {
|
|
return handleErr(new Error("options.domains must be an array of domains such as ['example.com', 'www.example.com']"));
|
|
}
|
|
|
|
state.domains = options.domains.slice(0); // copy array
|
|
try {
|
|
state.accountKeyPem=options.accountPrivateKeyPem;
|
|
state.accountKeyPair=importPemPrivateKey(state.accountKeyPem);
|
|
state.acme=new Acme(state.accountKeyPair);
|
|
state.certPrivateKeyPem=options.domainPrivateKeyPem;
|
|
state.certPrivateKey=importPemPrivateKey(state.certPrivateKeyPem);
|
|
} catch(err) {
|
|
return handleErr(err, 'Failed to parse privateKey');
|
|
}
|
|
|
|
function bodyToError(res, body) {
|
|
var err;
|
|
|
|
if (!body) {
|
|
err = new Error("[Error] letiny-core: no request body");
|
|
err.code = "E_NO_RESPONSE_BODY";
|
|
throw err;
|
|
}
|
|
|
|
if ('{' === body[0] || '{' === String.fromCharCode(body[0])) {
|
|
try {
|
|
body = JSON.parse(body);
|
|
} catch(e) {
|
|
err = new Error("[Error] letiny-core: body could not be parsed");
|
|
err.code = "E_BODY_PARSE";
|
|
err.description = body;
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
if (Math.floor(res.statusCode / 100) !== 2) {
|
|
err = new Error("[Error] letiny-core: not 200 ok");
|
|
err.code = "E_STATUS_CODE";
|
|
err.type = body.type
|
|
err.description = body;
|
|
err.detail = body.detail;
|
|
throw err;
|
|
}
|
|
|
|
if (body.type && body.detail) {
|
|
err = new Error("[Error] letiny-core: " + body.detail);
|
|
err.code = body.type;
|
|
err.type = body.type;
|
|
err.description = body.detail;
|
|
err.detail = body.detail;
|
|
throw err;
|
|
}
|
|
|
|
return body;
|
|
}
|
|
|
|
nextDomain();
|
|
|
|
function nextDomain() {
|
|
if (state.domains.length > 0) {
|
|
getChallenges(state.domains.shift());
|
|
return;
|
|
} else {
|
|
getCertificate();
|
|
}
|
|
}
|
|
|
|
function getChallenges(domain) {
|
|
state.domain=domain;
|
|
|
|
state.acme.post(state.newAuthzUrl, {
|
|
resource:'new-authz',
|
|
identifier:{
|
|
type:'dns',
|
|
value:state.domain,
|
|
}
|
|
}, getReadyToValidate);
|
|
}
|
|
|
|
function getReadyToValidate(err, res, body) {
|
|
var links, authz, httpChallenges, challenge, thumbprint, keyAuthorization, challengePath;
|
|
|
|
if (err) {
|
|
return handleErr(err);
|
|
}
|
|
|
|
if (Math.floor(res.statusCode/100)!==2) {
|
|
return handleErr(null, 'Authorization request failed ('+res.statusCode+')');
|
|
}
|
|
|
|
links=Acme.parseLink(res.headers.link);
|
|
if (!links || !('next' in links)) {
|
|
return handleErr(err, 'Server didn\'t provide information to proceed (2)');
|
|
}
|
|
|
|
state.authorizationUrl=res.headers.location;
|
|
state.newCertUrl=links.next;
|
|
|
|
authz=body;
|
|
|
|
httpChallenges=authz.challenges.filter(function(x) {
|
|
return x.type==='http-01';
|
|
});
|
|
if (httpChallenges.length===0) {
|
|
return handleErr(null, 'Server didn\'t offer any challenge we can handle.');
|
|
}
|
|
challenge=httpChallenges[0];
|
|
|
|
thumbprint=thumbprinter(state.accountKeyPair.publicKey);
|
|
keyAuthorization=challenge.token+'.'+thumbprint;
|
|
state.responseUrl=challenge.uri;
|
|
|
|
options.setChallenge(state.domain, challenge.token, keyAuthorization, challengeDone);
|
|
|
|
function challengeDone() {
|
|
state.acme.post(state.responseUrl, {
|
|
resource:'challenge',
|
|
keyAuthorization:keyAuthorization
|
|
}, function(err, res, body) {
|
|
ensureValidation(err, res, body, function unlink() {
|
|
options.removeChallenge(state.domain, challenge.token, function () {
|
|
// ignore
|
|
});
|
|
});
|
|
});
|
|
}
|
|
}
|
|
|
|
function ensureValidation(err, res, body, unlink) {
|
|
var authz;
|
|
|
|
if (err || Math.floor(res.statusCode/100)!==2) {
|
|
unlink();
|
|
return handleErr(err, 'Authorization status request failed ('+res.statusCode+')');
|
|
}
|
|
|
|
authz=body;
|
|
|
|
if (authz.status==='pending') {
|
|
setTimeout(function() {
|
|
request({
|
|
method: 'GET'
|
|
, url: state.authorizationUrl
|
|
}, function(err, res, body) {
|
|
if (!err && res.body) {
|
|
try {
|
|
body = bodyToError(res, body);
|
|
} catch(e) {
|
|
err = e;
|
|
}
|
|
}
|
|
|
|
ensureValidation(err, res, body, unlink);
|
|
});
|
|
}, 1000);
|
|
} else if (authz.status==='valid') {
|
|
log('Validating domain ... done');
|
|
state.validatedDomains.push(state.domain);
|
|
state.validAuthorizationUrls.push(state.authorizationUrl);
|
|
unlink();
|
|
nextDomain();
|
|
} else if (authz.status==='invalid') {
|
|
unlink();
|
|
return handleErr(null, 'The CA was unable to validate the file you provisioned', body);
|
|
} else {
|
|
unlink();
|
|
return handleErr(null, 'CA returned an authorization in an unexpected state', authz);
|
|
}
|
|
}
|
|
|
|
function getCertificate() {
|
|
var csr=generateCsr(state.certPrivateKey, state.validatedDomains);
|
|
log('Requesting certificate...');
|
|
state.acme.post(state.newCertUrl, {
|
|
resource:'new-cert',
|
|
csr:csr,
|
|
authorizations:state.validAuthorizationUrls
|
|
}, downloadCertificate);
|
|
}
|
|
|
|
function downloadCertificate(err, res, body) {
|
|
var links, certUrl;
|
|
|
|
if (err) {
|
|
handleErr(err, 'Certificate request failed');
|
|
return;
|
|
}
|
|
|
|
if (Math.floor(res.statusCode/100)!==2) {
|
|
err = new Error("invalid status code: " + res.statusCode);
|
|
err.code = "E_STATUS_CODE";
|
|
err.description = body;
|
|
handleErr(err);
|
|
return;
|
|
}
|
|
|
|
links=Acme.parseLink(res.headers.link);
|
|
if (!links || !('up' in links)) {
|
|
return handleErr(err, 'Failed to fetch issuer certificate');
|
|
}
|
|
|
|
log('Requesting certificate: done');
|
|
|
|
state.certificate=body;
|
|
certUrl=res.headers.location;
|
|
request({
|
|
method: 'GET'
|
|
, url: certUrl
|
|
, encoding: null
|
|
}, function(err, res, body) {
|
|
if (!err) {
|
|
try {
|
|
body = bodyToError(res, body);
|
|
} catch(e) {
|
|
err = e;
|
|
}
|
|
}
|
|
|
|
if (err) {
|
|
return handleErr(err, 'Failed to fetch cert from '+certUrl);
|
|
}
|
|
|
|
if (res.statusCode!==200) {
|
|
return handleErr(err, 'Failed to fetch cert from '+certUrl, res.body.toString());
|
|
}
|
|
|
|
if (body.toString()!==state.certificate.toString()) {
|
|
return handleErr(null, 'Cert at '+certUrl+' did not match returned cert');
|
|
}
|
|
|
|
log('Successfully verified cert at '+certUrl);
|
|
log('Requesting issuer certificate...');
|
|
request({
|
|
method: 'GET'
|
|
, url: links.up
|
|
, encoding: null
|
|
}, function(err, res, body) {
|
|
if (!err) {
|
|
try {
|
|
body = bodyToError(res, body);
|
|
} catch(e) {
|
|
err = e;
|
|
}
|
|
}
|
|
|
|
if (err || res.statusCode!==200) {
|
|
return handleErr(err, 'Failed to fetch issuer certificate');
|
|
}
|
|
|
|
state.caCert=certBufferToPem(body);
|
|
log('Requesting issuer certificate: done');
|
|
done();
|
|
});
|
|
});
|
|
}
|
|
|
|
function done() {
|
|
var cert;
|
|
|
|
try {
|
|
cert=certBufferToPem(state.certificate);
|
|
} catch(e) {
|
|
console.error(e.stack);
|
|
//cb(new Error("Could not write output files. Please check permissions!"));
|
|
handleErr(e, 'Could not write output files. Please check permissions!');
|
|
return;
|
|
}
|
|
|
|
cb(null, {
|
|
cert: cert
|
|
, key: state.certPrivateKeyPem
|
|
, ca: state.caCert
|
|
});
|
|
}
|
|
|
|
function handleErr(err, text, info) {
|
|
log(text, err, info);
|
|
cb(err || new Error(text));
|
|
}
|
|
}
|
|
|
|
function certBufferToPem(cert) {
|
|
cert=toStandardB64(cert.toString('base64'));
|
|
cert=cert.match(/.{1,64}/g).join('\n');
|
|
return '-----BEGIN CERTIFICATE-----\n'+cert+'\n-----END CERTIFICATE-----';
|
|
}
|
|
|
|
return getCert;
|
|
};
|