Patreon bulk attachment downloader

patreon.bulk.md

Patreon bulk attachment downloader

To use this script first install Greasemonkey (Firefox only), Violentmonkey or Tampermonkey.

Then click here to install this UserScript!

patreon.bulk.user.js

// ==UserScript==
// @name        Patreon bulk attachment downloader
// @author      anadius
// @namespace   anadius.su
// @match       https://www.patreon.com/posts/*
// @version     1.0.2
// @grant       none
// @require     https://cdn.jsdelivr.net/npm/[email protected]/dist/jszip.min.js
// @require     https://cdn.jsdelivr.net/npm/[email protected]/FileSaver.min.js
// @run-at      document-end
// ==/UserScript==

window.addEventListener("load", () => {

const ATTACHMENTS = document.querySelector("[data-tag=post-attachments]");
const DOWNLOAD_BUTTON = document.createElement("button");
const TITLE = document.querySelector("[data-tag=post-title]").textContent;

const makeCheckbox = (attachment) => {
  const cb = document.createElement("input");
  cb.type = "checkbox";
  if(attachment !== null) {
    cb.filename = attachment.textContent;
    cb.url = attachment.href;
    cb.style.height = "1.35rem";
    cb.classList.add("attachment");
  }
  return cb;
};

const getCheckboxes = () => ATTACHMENTS.querySelectorAll("input.attachment[type=checkbox]");

const readAsBinaryString = blob => new Promise(resolve => {
  const reader = new FileReader();
  reader.onload = function(event) {
    resolve(event.target.result);
  };
  reader.readAsBinaryString(blob);
});

const download = async e => {
  e.preventDefault();

  const zip = new JSZip();
  DOWNLOAD_BUTTON.disabled = "disabled";

  for(const cb of getCheckboxes()) {
    if(cb.checked) {
      const response = await fetch(cb.url);
      const blob = await response.blob();
      cb.classList.add("downloaded");
      zip.file(cb.filename, await readAsBinaryString(blob), {binary: true});
    }
  }

  zip.generateAsync({type:"blob"})
    .then(function(content) {
    saveAs(content, `${TITLE}.zip`);
  });
  DOWNLOAD_BUTTON.disabled = "";
};


for(const attachment of ATTACHMENTS.querySelectorAll("[data-tag=post-attachment-link]")) {
  attachment.before(makeCheckbox(attachment));
}

const div = document.createElement("div");
const toggleAll = makeCheckbox(null);
toggleAll.addEventListener("click", () => {
  for(const cb of getCheckboxes()) {
    cb.checked = toggleAll.checked;
  }
});

DOWNLOAD_BUTTON.innerHTML = "Download";
DOWNLOAD_BUTTON.addEventListener("click", download);

const label = document.createElement("label");
label.innerHTML = " Toggle all ";
label.prepend(toggleAll);

div.append(label, DOWNLOAD_BUTTON);
ATTACHMENTS.append(div);

document.styleSheets[0].addRule("input.attachment.downloaded[type=checkbox] + a:after",'content: "✅"');

})();

I think the problem is actually Tampermonkey and Violentmonkey. I tried with both Tampermonkey and Violentmonkey on Zen, a FF fork, and on Edge. With either extension, the toggle and download all button appear, but if I click the button, it greys out and nothing downloads. I tested with this post, this post and the post you linked. Then I tried with Greasemonkey on FF, and everything works as it should.

Thank you for clarifying the issue. I tested it on mac and windows and both of them freezed. The box and download button didnt show up on mac. Greasemonkey only downloads the first file. Anadius couldnt even realize the problem because he always has a shitty ego.

@legendarygamer2022 are you dumb? They clearly said that it works fine in Firefox with Greasemonkey. So if it doesn't work for you - that's on your side. You haven't even provided ANY FUCKING LINKS yet.