Humble bundle book bundles - download all books at once

hb_all_books_dl.js

/* 
Forked from https://gist.github.com/zuazo/a91ecbb97b90ef3ef9ce8caf361199a2
Which was forked from https://gist.github.com/p0kR/95e05e689be4e59b1b8fb6e383b9e25a

After purchasing a humble book bundle, go to your download page for that bundle. 
Open a console window on the page and paste in the below JavaScript.

JamesSkemp fork changes:
- Fix ZIP file downloads.
- Add Chrome URLs to setting pages.
- Add configurable delay between downloads.

note that if you are in chrome, chrome will not download the pdfs for you by default, to fix this
Settings (chrome://settings) --> Advanced --> Privacy and security --> Content settings --> PDF documents --> Download PDF files instead of automatically opening them in Chrome --> Turn ON
    chrome://settings/content/pdfDocuments
Settings (chrome://settings) --> Advanced --> Downloads --> Ask where to save each file before downloading --> Turn OFF
    chrome://settings/downloads
*/
var pattern = /(MOBI|PRC|ZIP|EPUB|PDF( ?\(H.\))?|CBZ|Download)$/i;
var nodes = document.getElementsByTagName('a');
// Delay after starting a download, in ms.
const downloadDelay = 3000;
const timer = ms => new Promise(res => setTimeout(res, ms))

async function startSearching() {
    for (i in nodes) {
        var a = nodes[i];
        if (a && a.text && pattern.test(a.text.trim())) {
            download(a.attributes['href'].value, i);
            // Wait x milliseconds before looking for additional downloads.
            await timer(downloadDelay);
        }
    }
}
function download(url, i) {
    var iframe = document.createElement('iframe');
    iframe.id = "dl_iframe_" + i;
    iframe.style.display = "none";
    document.getElementsByTagName('body')[0].appendChild(iframe);
    iframe.src = url;
    console.log('iframe set to', url)
}
startSearching();

hb_get_titles.js

/*
  Bonus: Get book/game titles dumped to the console.
*/
const gameInfo = document.getElementsByClassName("gameinfo");
const gameTitles = [];
for (i in gameInfo) {
	var game = gameInfo[i];
	if (game && typeof game === 'object') {
		let gameTitle = game.getElementsByClassName("title");
		if (gameTitle) {
			gameTitles.push(gameTitle[0].innerText);
		}
	}
}
console.log(gameTitles.sort().join('\r\n'));
console.log(`${gameTitles.length} items`);