97 lines
3.6 KiB
Plaintext
97 lines
3.6 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.createRemoteJWKSet = void 0;
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const fetch_jwks_js_1 = require("../runtime/fetch_jwks.js");
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const errors_js_1 = require("../util/errors.js");
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const local_js_1 = require("./local.js");
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function isCloudflareWorkers() {
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return (typeof WebSocketPair !== 'undefined' ||
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(typeof navigator !== 'undefined' && navigator.userAgent === 'Cloudflare-Workers') ||
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(typeof EdgeRuntime !== 'undefined' && EdgeRuntime === 'vercel'));
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}
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let USER_AGENT;
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if (typeof navigator === 'undefined' || !navigator.userAgent?.startsWith?.('Mozilla/5.0 ')) {
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const NAME = 'jose';
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const VERSION = 'v5.2.2';
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USER_AGENT = `${NAME}/${VERSION}`;
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}
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class RemoteJWKSet extends local_js_1.LocalJWKSet {
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_url;
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_timeoutDuration;
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_cooldownDuration;
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_cacheMaxAge;
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_jwksTimestamp;
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_pendingFetch;
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_options;
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constructor(url, options) {
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super({ keys: [] });
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this._jwks = undefined;
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if (!(url instanceof URL)) {
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throw new TypeError('url must be an instance of URL');
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}
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this._url = new URL(url.href);
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this._options = { agent: options?.agent, headers: options?.headers };
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this._timeoutDuration =
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typeof options?.timeoutDuration === 'number' ? options?.timeoutDuration : 5000;
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this._cooldownDuration =
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typeof options?.cooldownDuration === 'number' ? options?.cooldownDuration : 30000;
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this._cacheMaxAge = typeof options?.cacheMaxAge === 'number' ? options?.cacheMaxAge : 600000;
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}
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coolingDown() {
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return typeof this._jwksTimestamp === 'number'
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? Date.now() < this._jwksTimestamp + this._cooldownDuration
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: false;
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}
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fresh() {
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return typeof this._jwksTimestamp === 'number'
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? Date.now() < this._jwksTimestamp + this._cacheMaxAge
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: false;
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}
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async getKey(protectedHeader, token) {
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if (!this._jwks || !this.fresh()) {
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await this.reload();
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}
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try {
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return await super.getKey(protectedHeader, token);
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}
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catch (err) {
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if (err instanceof errors_js_1.JWKSNoMatchingKey) {
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if (this.coolingDown() === false) {
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await this.reload();
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return super.getKey(protectedHeader, token);
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}
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}
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throw err;
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}
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}
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async reload() {
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if (this._pendingFetch && isCloudflareWorkers()) {
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this._pendingFetch = undefined;
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}
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const headers = new Headers(this._options.headers);
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if (USER_AGENT && !headers.has('User-Agent')) {
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headers.set('User-Agent', USER_AGENT);
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this._options.headers = Object.fromEntries(headers.entries());
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}
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this._pendingFetch ||= (0, fetch_jwks_js_1.default)(this._url, this._timeoutDuration, this._options)
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.then((json) => {
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if (!(0, local_js_1.isJWKSLike)(json)) {
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throw new errors_js_1.JWKSInvalid('JSON Web Key Set malformed');
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}
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this._jwks = { keys: json.keys };
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this._jwksTimestamp = Date.now();
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this._pendingFetch = undefined;
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})
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.catch((err) => {
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this._pendingFetch = undefined;
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throw err;
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});
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await this._pendingFetch;
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}
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}
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function createRemoteJWKSet(url, options) {
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const set = new RemoteJWKSet(url, options);
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return async (protectedHeader, token) => set.getKey(protectedHeader, token);
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}
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exports.createRemoteJWKSet = createRemoteJWKSet;
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