wikijs-fork/server/core/letsencrypt.js

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const ACME = require('acme')
const Keypairs = require('@root/keypairs')
const _ = require('lodash')
const moment = require('moment')
const CSR = require('@root/csr')
const PEM = require('@root/pem')
// eslint-disable-next-line node/no-deprecated-api
const punycode = require('punycode')
/* global WIKI */
module.exports = {
apiDirectory: WIKI.dev ? 'https://acme-staging-v02.api.letsencrypt.org/directory' : 'https://acme-v02.api.letsencrypt.org/directory',
acme: null,
async init () {
if (!_.get(WIKI.config, 'letsencrypt.payload', false)) {
await this.requestCertificate()
} else if (WIKI.config.letsencrypt.domain !== WIKI.config.ssl.domain) {
WIKI.logger.info(`(LETSENCRYPT) Domain has changed. Requesting new certificates...`)
await this.requestCertificate()
} else if (moment(WIKI.config.letsencrypt.payload.expires).isSameOrBefore(moment().add(5, 'days'))) {
WIKI.logger.info(`(LETSENCRYPT) Certificate is about to or has expired, requesting a new one...`)
await this.requestCertificate()
} else {
WIKI.logger.info(`(LETSENCRYPT) Using existing certificate for ${WIKI.config.ssl.domain}, expires on ${WIKI.config.letsencrypt.payload.expires}: [ OK ]`)
}
WIKI.config.ssl.format = 'pem'
WIKI.config.ssl.inline = true
WIKI.config.ssl.key = WIKI.config.letsencrypt.serverKey
WIKI.config.ssl.cert = WIKI.config.letsencrypt.payload.cert + '\n' + WIKI.config.letsencrypt.payload.chain
WIKI.config.ssl.passphrase = null
WIKI.config.ssl.dhparam = null
},
async requestCertificate () {
try {
WIKI.logger.info(`(LETSENCRYPT) Initializing Let's Encrypt client...`)
this.acme = ACME.create({
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maintainerEmail: WIKI.config.maintainerEmail,
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packageAgent: `wikijs/${WIKI.version}`,
notify: (ev, msg) => {
if (_.includes(['warning', 'error'], ev)) {
WIKI.logger.warn(`${ev}: ${msg}`)
} else {
WIKI.logger.debug(`${ev}: ${JSON.stringify(msg)}`)
}
}
})
await this.acme.init(this.apiDirectory)
// -> Create ACME Subscriber account
if (!_.get(WIKI.config, 'letsencrypt.account', false)) {
WIKI.logger.info(`(LETSENCRYPT) Setting up account for the first time...`)
const accountKeypair = await Keypairs.generate({ kty: 'EC', format: 'jwk' })
const account = await this.acme.accounts.create({
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subscriberEmail: WIKI.config.ssl.subscriberEmail,
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agreeToTerms: true,
accountKey: accountKeypair.private
})
WIKI.config.letsencrypt = {
accountKeypair: accountKeypair,
account: account,
domain: WIKI.config.ssl.domain
}
await WIKI.configSvc.saveToDb(['letsencrypt'])
WIKI.logger.info(`(LETSENCRYPT) Account was setup successfully [ OK ]`)
}
// -> Create Server Keypair
if (!WIKI.config.letsencrypt.serverKey) {
WIKI.logger.info(`(LETSENCRYPT) Generating server keypairs...`)
const serverKeypair = await Keypairs.generate({ kty: 'RSA', format: 'jwk' })
WIKI.config.letsencrypt.serverKey = await Keypairs.export({ jwk: serverKeypair.private })
WIKI.logger.info(`(LETSENCRYPT) Server keypairs generated successfully [ OK ]`)
}
// -> Create CSR
WIKI.logger.info(`(LETSENCRYPT) Generating certificate signing request (CSR)...`)
const domains = [ punycode.toASCII(WIKI.config.ssl.domain) ]
const serverKey = await Keypairs.import({ pem: WIKI.config.letsencrypt.serverKey })
const csrDer = await CSR.csr({ jwk: serverKey, domains, encoding: 'der' })
const csr = PEM.packBlock({ type: 'CERTIFICATE REQUEST', bytes: csrDer })
WIKI.logger.info(`(LETSENCRYPT) CSR generated successfully [ OK ]`)
// -> Verify Domain + Get Certificate
WIKI.logger.info(`(LETSENCRYPT) Requesting certificate from Let's Encrypt...`)
const certResp = await this.acme.certificates.create({
account: WIKI.config.letsencrypt.account,
accountKey: WIKI.config.letsencrypt.accountKeypair.private,
csr,
domains,
challenges: {
'http-01': {
init () {},
set (data) {
WIKI.logger.info(`(LETSENCRYPT) Setting HTTP challenge for ${data.challenge.hostname}: [ READY ]`)
WIKI.config.letsencrypt.challenge = data.challenge
WIKI.logger.info(`(LETSENCRYPT) Waiting for challenge to complete...`)
return null // <- this is needed, cannot be undefined
},
get (data) {
return WIKI.config.letsencrypt.challenge
},
async remove (data) {
WIKI.logger.info(`(LETSENCRYPT) Removing HTTP challenge: [ OK ]`)
WIKI.config.letsencrypt.challenge = null
return null // <- this is needed, cannot be undefined
}
}
}
})
WIKI.logger.info(`(LETSENCRYPT) New certifiate received successfully: [ COMPLETED ]`)
WIKI.config.letsencrypt.payload = certResp
WIKI.config.letsencrypt.domain = WIKI.config.ssl.domain
await WIKI.configSvc.saveToDb(['letsencrypt'])
} catch (err) {
WIKI.logger.warn(`(LETSENCRYPT) ${err}`)
throw err
}
}
}