smartacme/ts/smartacme.classes.smartacme.ts

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import * as plugins from './smartacme.plugins';
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import { Cert } from './smartacme.classes.cert';
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import { CertManager } from './smartacme.classes.certmanager';
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import { CertMatcher } from './smartacme.classes.certmatcher';
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/**
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* the options for the class @see SmartAcme
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*/
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export interface ISmartAcmeOptions {
accountPrivateKey?: string;
accountEmail: string;
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mongoDescriptor: plugins.smartdata.IMongoDescriptor;
setChallenge: (dnsChallengeArg: plugins.tsclass.network.IDnsChallenge) => Promise<any>;
removeChallenge: (dnsChallengeArg: plugins.tsclass.network.IDnsChallenge) => Promise<any>;
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environment: 'production' | 'integration';
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logger?: plugins.smartlog.Smartlog;
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}
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/**
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* class SmartAcme
* can be used for setting up communication with an ACME authority
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*
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* ```ts
* const mySmartAcmeInstance = new SmartAcme({
* // see ISmartAcmeOptions for options
* })
* ```
*/
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export class SmartAcme {
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private options: ISmartAcmeOptions;
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// the acme client
private client: any;
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private smartdns = new plugins.smartdns.Smartdns({});
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public logger: plugins.smartlog.Smartlog;
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// the account private key
private privateKey: string;
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// challenge fullfillment
private setChallenge: (dnsChallengeArg: plugins.tsclass.network.IDnsChallenge) => Promise<any>;
private removeChallenge: (dnsChallengeArg: plugins.tsclass.network.IDnsChallenge) => Promise<any>;
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// certmanager
private certmanager: CertManager;
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private certmatcher: CertMatcher;
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constructor(optionsArg: ISmartAcmeOptions) {
this.options = optionsArg;
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this.options.logger
? (this.logger = optionsArg.logger)
: (this.logger = plugins.smartlog.defaultLogger);
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}
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/**
* inits the instance
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* ```ts
* await myCloudlyInstance.init() // does not support options
* ```
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*/
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public async init() {
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this.privateKey =
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this.options.accountPrivateKey || (await plugins.acme.forge.createPrivateKey()).toString();
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this.setChallenge = this.options.setChallenge;
this.removeChallenge = this.options.removeChallenge;
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// CertMangaer
this.certmanager = new CertManager(this, {
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mongoDescriptor: this.options.mongoDescriptor
});
await this.certmanager.init();
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// CertMatcher
this.certmatcher = new CertMatcher();
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// ACME Client
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this.client = new plugins.acme.Client({
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directoryUrl: (() => {
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if (this.options.environment === 'production') {
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return plugins.acme.directory.letsencrypt.production;
} else {
return plugins.acme.directory.letsencrypt.staging;
}
})(),
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accountKey: this.privateKey
});
/* Register account */
await this.client.createAccount({
termsOfServiceAgreed: true,
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contact: [`mailto:${this.options.accountEmail}`]
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});
}
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public async stop() {
await this.certmanager.smartdataDb.close();
}
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/**
* gets a certificate
* it runs through the following steps
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*
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* * look in the database
* * if in the database and still valid return it
* * if not in the database announce it
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* * then get it from letsencrypt
* * store it
* * remove it from the pending map (which it go onto by announcing it)
* * retrieve it from the databse and return it
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*
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* @param domainArg
*/
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public async getCertificateForDomain(domainArg: string): Promise<Cert> {
const certDomainName = this.certmatcher.getCertificateDomainNameByDomainName(domainArg);
const retrievedCertificate = await this.certmanager.retrieveCertificate(certDomainName);
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const shouldberenewed = retrievedCertificate.shouldBeRenewed();
const isStillValid = retrievedCertificate.isStillValid();
if (!retrievedCertificate && await this.certmanager.interestMap.checkInterest(certDomainName)) {
const existingCertificateInterest = this.certmanager.interestMap.findInterest(certDomainName);
const certificate = existingCertificateInterest.interestFullfilled;
return certificate;
} else if (retrievedCertificate && !retrievedCertificate.shouldBeRenewed()) {
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return retrievedCertificate;
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} else if (retrievedCertificate && retrievedCertificate.shouldBeRenewed()) {
// await retrievedCertificate.delete();
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}
// lets make sure others get the same interest
await this.certmanager.interestMap.addInterest(certDomainName);
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/* Place new order */
const order = await this.client.createOrder({
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identifiers: [
{ type: 'dns', value: certDomainName },
{ type: 'dns', value: `*.${certDomainName}` }
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]
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});
/* Get authorizations and select challenges */
const authorizations = await this.client.getAuthorizations(order);
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for (const authz of authorizations) {
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console.log(authz);
const fullHostName: string = `_acme-challenge.${authz.identifier.value}`;
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const dnsChallenge: string = authz.challenges.find(challengeArg => {
return challengeArg.type === 'dns-01';
});
// process.exit(1);
const keyAuthorization: string = await this.client.getChallengeKeyAuthorization(dnsChallenge);
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try {
/* Satisfy challenge */
await this.setChallenge({
hostName: fullHostName,
challenge: keyAuthorization
});
await this.smartdns.checkUntilAvailable(fullHostName, 'TXT', keyAuthorization, 100, 5000);
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console.log('Cool down an extra 60 second for region availability');
await plugins.smartdelay.delayFor(60000);
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/* Verify that challenge is satisfied */
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await this.client.verifyChallenge(authz, dnsChallenge);
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/* Notify ACME provider that challenge is satisfied */
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await this.client.completeChallenge(dnsChallenge);
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/* Wait for ACME provider to respond with valid status */
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await this.client.waitForValidStatus(dnsChallenge);
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} finally {
/* Clean up challenge response */
try {
await this.removeChallenge({
hostName: fullHostName,
challenge: keyAuthorization
});
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} catch (e) {
console.log(e);
}
}
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}
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/* Finalize order */
const [key, csr] = await plugins.acme.forge.createCsr({
commonName: `*.${certDomainName}`,
altNames: [certDomainName]
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});
await this.client.finalizeOrder(order, csr);
const cert = await this.client.getCertificate(order);
/* Done */
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await this.certmanager.storeCertificate({
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id: plugins.smartunique.shortId(),
domainName: certDomainName,
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privateKey: key.toString(),
publicKey: cert.toString(),
csr: csr.toString(),
created: Date.now(),
validUntil:
Date.now() +
plugins.smarttime.getMilliSecondsFromUnits({
days: 90
})
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});
const newCertificate = await this.certmanager.retrieveCertificate(certDomainName);
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return newCertificate;
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}
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}