Download Photos from Bright Horizons

bright-horizons-photo.mjs

/* Download Bright Horizons Photos */

import fs from "node:fs";
import https from "node:https";
import path from "node:path";
import process from "node:process";
import url from "node:url";
import util from "node:util";

if (!process.argv[2]) {
  console.error(`Usage: node ${process.argv[1]} <email-file>`);
  process.exit(-1);
}

const dirname = path.dirname(url.fileURLToPath(import.meta.url));
const readFile = util.promisify(fs.readFile);

const snapshotUrl = "https://productionmbd.brighthorizons.com/m/snapshot/";
const emailFile = path.resolve(dirname, process.argv[2]);

console.info("Read content from file: " + emailFile);
const content = (await readFile(emailFile, "utf-8")).replace(/=\r\n/g, "");

let position = 0;
while (true) {
  const startPosition = content.indexOf(snapshotUrl, position);
  if (startPosition === -1) {
    break;
  }

  const endPosition = content.indexOf("?d", startPosition);
  position = endPosition;

  const url = content.substring(startPosition, endPosition);
  console.info("Start download " + url);

  https.get(url + "?d=t&download=t", (response) => {
    const disposition = response.headers["content-disposition"];
    const filename = disposition
      .substring("attachment; filename=".length)
      .replace(/:/g, "_");

    const fileStream = fs.createWriteStream(path.join(dirname, filename));
    response.pipe(fileStream).on("finish", () => {
      fileStream.close();
      console.info("Complete: " + filename);
    });
  });
}