as-services/libs/common/jwks/jwks.js

24 lines
534 B
JavaScript

const fs = require("fs-extra")
const fnv = require("fnv-plus")
module.exports = async function createJwks(env) {
const { JWK_FILE, OLDJWK_FILE } = env
const loadJwkFile = async (file) => {
const rawJwk = await fs.readFile(file, { encoding: "utf-8" })
const jwk = JSON.parse(rawJwk)
if (!jwk.kid) {
jwk.kid = fnv.hash(rawJwk, 128).hex()
}
return jwk
}
const keys = []
keys.push(await loadJwkFile(JWK_FILE))
if (OLDJWK_FILE) {
keys.push(await loadJwkFile(OLDJWK_FILE))
}
return keys
}