jose/dist/node/cjs/runtime/fetch_jwks.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const http_1 = require("http");
const https_1 = require("https");
const events_1 = require("events");
const errors_js_1 = require("../util/errors.js");
const buffer_utils_js_1 = require("../lib/buffer_utils.js");
const protocols = {
    'https:': https_1.get,
    'http:': http_1.get,
};
const fetchJwks = async (url, timeout, options) => {
    if (protocols[url.protocol] === undefined) {
        throw new TypeError('Unsupported URL protocol.');
    }
    const { agent } = options;
    const req = protocols[url.protocol](url.href, {
        agent,
        timeout,
    });
    const [response] = (await Promise.race([(0, events_1.once)(req, 'response'), (0, events_1.once)(req, 'timeout')]));
    if (!response) {
        req.destroy();
        throw new errors_js_1.JWKSTimeout();
    }
    if (response.statusCode !== 200) {
        throw new errors_js_1.JOSEError('Expected 200 OK from the JSON Web Key Set HTTP response');
    }
    const parts = [];
    for await (const part of response) {
        parts.push(part);
    }
    try {
        return JSON.parse(buffer_utils_js_1.decoder.decode((0, buffer_utils_js_1.concat)(...parts)));
    }
    catch {
        throw new errors_js_1.JOSEError('Failed to parse the JSON Web Key Set HTTP response as JSON');
    }
};
exports.default = fetchJwks;