Download gallery from waifubitches.com
// ==UserScript==
// @name waifubitches.com Downloader
// @description Download gallery from waifubitches.com
// @namespace chimichanga
// @author chimichanga
// @icon https://waifubitches.com/favicon.ico
// @version 2.0
// @license MIT
// @match https://waifubitches.com/gallery/*
// @require https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.7.0.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/jszip/3.9.1/jszip.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.4/FileSaver.min.js
// @noframes
// @connect self
// @connect userapi.com
// @run-at document-idle
// @grant GM_xmlhttpRequest
// ==/UserScript==
// based on the 8muses.com downloader script
var downBtn;
var downStatus;
var zipFile;
const State = { NOT_STARTED: Symbol('not_started'), DOWNLOADING: Symbol('downloading'), COMPRESSING: Symbol('compressing'), DONE: Symbol('done') };
var state = State.NOT_STARTED;
var zip = new JSZip();
var resultBlob;
var sources = [];
var thumbnails = [];
var completed = 0;
var failed = 0;
$(document).ready(function () {
sources = $('div.grid .grid-item a').map((_, { href }) => href).get();
thumbnails = $('div.grid .grid-item img.img-fluid').map((_, { src }) => src).get();
sources = sources.map((s, i) => [s, thumbnails[i]]);
if (sources.length == 0) return;
downBtn = $(`<a class="btn btn-sm btn-warning"><i class="bi bi-download"></i> <span>DOWNLOAD (${sources.length})</span></a>`);
downStatus = $(downBtn).find('span');
$('body > div:nth-child(1) > div.pb-2 > center > noindex').append(downBtn);
zipFile = window.location.href.split('/gallery/')[1] + '+' + $('body > div:nth-child(1) > h1').get(0).innerText + '.zip';
$(downBtn).click(download);
});
function updateState(newState, progress) {
state = newState;
$(downBtn).toggleClass('btn-success', state == State.DONE);
$(downBtn).toggleClass('btn-warning', state == State.NOT_STARTED || state == State.COMPRESSING || state == State.DOWNLOADING);
$(downBtn).toggleClass('btn-danger', failed > 0);
let messages = {
[State.NOT_STARTED]: `DOWNLOAD`,
[State.DOWNLOADING]: `DOWNLOADING`,
[State.COMPRESSING]: `COMPRESSING`,
[State.DONE]: `ZIP READY`,
}
$(downStatus).html(messages[state] + (failed > 0 ? ` (${failed} failed)` : '') + (progress ? ` ${progress}` : ''));
}
function download() {
if (state == State.DONE && failed == 0) {
saveZip();
return;
}
if (state == State.DOWNLOADING || state == State.COMPRESSING)
return;
updateState(State.DOWNLOADING);
completed = 0;
failed = 0;
Promise.allSettled(
sources.map(([url, backup]) =>
fetch(url).catch((cause) => {
console.log(`can't fetch original image, ${cause}: ${url}`);
return fetch(backup);
}).then(({ response, url }) => {
completed++;
updateState(State.DOWNLOADING, `${completed}/${sources.length}`);
let fileName = url.split(/(?:\/(?:a|impg)\/|\?)/)[1].replaceAll('/', '-');
zip.file(fileName, response);
}).catch((cause) => {
console.log(`can't fetch thumbnail image, ${cause}: ${url}`);
failed++;
})))
.then(saveZip);
}
function fetch(url) {
return new Promise((resolve, reject) => GM_xmlhttpRequest({
method: 'GET',
url: url,
responseType: 'arraybuffer',
onload: ({ response, status }) => status == 200 ? resolve({ response: response, url: url }) : reject('missing'),
onerror: () => reject('error'),
onabort: () => reject('abort'),
ontimeout: () => reject('timeout'),
}));
}
function saveZip() {
if (state == State.DONE) {
saveAs(resultBlob, zipFile);
return;
}
zip.generateAsync(
{ type: 'blob' },
({ percent }) => updateState(State.COMPRESSING, `${percent.toFixed(2)}%`)
).then(function (blob) {
updateState(State.DONE, `${completed}/${sources.length}`);
resultBlob = blob;
saveAs(resultBlob, zipFile);
});
}