Grab all download links from the bandcamp post-checkout download cart page
// ==UserScript==
// @name Bandcamp Download Link Grabber
// @namespace http://tampermonkey.net/
// @version 1.0.1
// @description Grab all download links from the bandcamp post-checkout download cart page
// @author Maff
// @match https://bandcamp.com/download?*
// @icon https://www.google.com/s2/favicons?sz=64&domain=bandcamp.com
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
var dataBindMatchStr = 'attr: { href: downloadUrl }, visible: downloadReady() && !downloadError()';
var nDownloadables = {ready: 0, not: 0};
function getBlock() {
return document.getElementsByClassName('download_list')[0];
}
function getLinksFromDocument(box) {
let elements = [].filter.call(getBlock().getElementsByTagName('a'), e => e.className == 'item-button');
box.textContent = '';
for(let link of elements) {
if(link.hasAttribute('data-bind') && link.getAttribute('data-bind') == dataBindMatchStr) {
if(link.href == '' || link.style.display == 'none') {
nDownloadables.not++;
} else {
box.textContent += ''+link.href+'\n';
nDownloadables.ready++;
}
}
}
}
function removeContainer() {
let list = getBlock();
if(list.children[0].id == 'tm_js_GrabDlLinks_Container') {
list.children[0].remove();
}
}
function createOrReplaceContainer() {
removeContainer();
let list = getBlock();
let container = document.createElement('li');
container.className = 'download_list_item';
container.id = 'tm_js_GrabDlLinks_Container';
container.style.flexDirection = 'column';
list.prepend(container);
return container;
}
function getContainer() {
let list = document.getElementById('tm_js_GrabDlLinks_Container');
if(list) {
return list;
}
return createOrReplaceContainer();
}
function removeContainerById(id) {
let container = document.getElementById(id);
if(container) {
container.remove();
}
}
function createOrReplaceContainerById(id) {
removeContainerById(id);
let container = document.createElement('div');
container.id = id;
return container;
}
function addLinkBlock() {
let container = getContainer();
nDownloadables = {ready: 0, not: 0};
removeContainerById('tm_js_GrabDlLinks_Output');
let block = document.createElement('textarea');
block.id = 'tm_js_GrabDlLinks_Output';
block.style.minHeight = '800px';
let info = document.createElement('span');
removeContainerById('tm_js_GrabDlLinks_Info');
info.id = 'tm_js_GrabDlLinks_Info';
getLinksFromDocument(block);
info.textContent = 'Ready to download: '+nDownloadables.ready+', preparing/failed: '+nDownloadables.not;
container.appendChild(info);
container.appendChild(block);
}
function addButton() {
let container = getContainer();
removeContainerById('tm_js_GrabDlLinks_Invoke');
let link = document.createElement('a');
link.id = 'tm_js_GrabDlLinks_Invoke';
link.text = 'Get download links';
link.onclick = addLinkBlock;
container.prepend(link);
}
addButton();
})();