Download humble bundle contents

download_all_humblebundle.js

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

function getTitle() {
  var re = /^Humble.*Bundle\:\ (.*)\ \(/g;
  return re.exec(document.title)[1];
}

function showHashes() {
  document.querySelectorAll('.dlmd5').forEach(md5 => {
    if (md5.innerText.trim() == 'md5') {
      md5.click();
    }
  });
}

function gatherInfo() {
  const data = [];
  const bundleTitle = getTitle();
  showHashes();
  document.querySelectorAll('.row').forEach(row => {
    const bookTitle = row.dataset.humanName;
    [...row.querySelectorAll('.downloads .download')].forEach(dl => {
      const downloadLink = dl.querySelector('.flexbtn a').href;
      const filename = /\.com\/([^?]+)/.exec(downloadLink)[1];
      const md5 = dl.querySelector('a.dlmd5').innerText.trim();
      data.push({
        "bundleTitle": bundleTitle,
        "bookTitle": bookTitle,
        "filename": filename,
        "downloadLink": downloadLink,
        "md5": md5
      });
    });
  });
  return data;
}

function downloadBookBundle() {
  const commands = []
  const md5Sums = [];
  const info = gatherInfo();
  for (var i in info) {
    bundleTitle = info[i]["bundleTitle"];
    bookTitle = info[i]["bookTitle"];
    filename = info[i]["filename"];
    downloadLink = info[i]["downloadLink"];
    md5 = info[i]["md5"];
    command = `curl --create-dirs -o "${bundleTitle}/${bookTitle}/${filename}" "${downloadLink}"`;
    commands.push("echo " + command);
    commands.push(command);
    md5Sums.push(`${md5}  ${bundleTitle}/${bookTitle}/${filename}`);
  };
  console.log(commands.join('\n'));
  console.log(md5Sums.join('\n'));
}

downloadBookBundle();