Function fetch

scripts/utils.js:12–39

(url)

import {Transform as Stream} from 'node:stream';

export function fetch(url) {
  return new Promise(fetchPromise);

  function fetchPromise(resolve, reject) {
    let request;
    const protocol = new URL(url).protocol;
    const handleResponse = getCallback.bind(null, resolve, reject);
    if (protocol === 'https:') {
      request = https.get(url, handleResponse);
    } else if (protocol === 'http:') {
      request = http.get(url, handleResponse);
    } else {
      reject(new Error(`Invalid protocol for url: ${url}`));
      return;
    }
    request.on('error', err => reject(err));
  }

  function getCallback(resolve, reject, response) {
    if (response.statusCode !== 200) {
      reject(new Error(`Request error: + ${response.statusCode}`));
      return;
    }
    const body = new Stream();
    response.on('data', chunk => body.push(chunk));
    response.on('end', () => resolve(body.read()));
  }
}

export function atob(str) {
  return new Buffer(str, 'base64').toString('binary');