Download manga on nHentai.net
// ==UserScript==
// @name nHentai Downloader
// @namespace https://holy-donkey.github.io
// @description Download manga on nHentai.net
// @version 1.2.1
// @icon http://i.imgur.com/FAsQ4vZ.png
// @author The Holy Donkey
// @license MIT
// @match http://nhentai.net/g/*
// @match https://nhentai.net/g/*
// @require https://cdn.jsdelivr.net/jquery/2.2.4/jquery.min.js
// @require https://cdn.jsdelivr.net/jszip/3.1.3/jszip.min.js
// @require https://cdn.jsdelivr.net/filesaver.js/1.3.3/FileSaver.min.js
// @noframes
// @connect self
// @supportURL https://github.com/holy-donkey/UserScripts/issues
// @run-at document-idle
// @grant GM_xmlhttpRequest
// ==/UserScript==
jQuery(function($) {
'use strict';
function deferredAddZip(i, filename) {
var deferred = $.Deferred();
GM_xmlhttpRequest({
method: 'GET',
url: images[i],
responseType: 'arraybuffer',
onload: function(response) {
zip.file(filename, response.response);
$download.html('<i class="fa fa-cog fa-spin"></i> ' + (++current) + '/' + total);
deferred.resolve(response);
},
onerror: function(err) {
console.error(err);
deferred.reject(err);
}
});
return deferred;
}
var zip = new JSZip(),
prevZip = false,
deferreds = [],
current = 0,
total = 0,
images = [],
$download = $('#download'),
doc = document,
tit = doc.title;
window.URL = window.URL || window.webkitURL;
$download.one('click', function(e) {
e.preventDefault();
$download.attr('href', '#download');
$(window).on('beforeunload', function() {
return 'Progress is running...';
});
$download.html('<i class="fa fa-cog fa-spin"></i> Waiting...').css('backgroundColor', 'orange');
$('.lazyload').each(function(i, v) {
images[i] = location.protocol + $(v).attr('data-src').replace('t.n', 'i.n').replace(/\/(\d+)t\./, '/$1.');
});
total = images.length;
$.each(images, function(i, v) {
var filename = v.replace(/.*\//g, '');
deferreds.push(deferredAddZip(i, filename));
});
$.when.apply($, deferreds).done(function() {
zip.generateAsync({
type: 'blob'
}).then(function(blob) {
var zipName = tit.split(' » ')[0].replace(/\s/g, '_') + '.zip';
if (prevZip) {
window.URL.revokeObjectURL(prevZip);
}
prevZip = blob;
$download.html('<i class="fa fa-check"></i> Complete').css('backgroundColor', 'green').attr({
href: window.URL.createObjectURL(prevZip),
download: zipName
});
saveAs(blob, zipName);
doc.title = '[⇓] ' + tit;
}, function(reason) {
console.error(reason);
});
}).fail(function(err) {
$download.html('<i class="fa fa-exclamation"></i> Fail').css('backgroundColor', 'red');
console.error(err);
}).always(function() {
$(window).off('beforeunload');
});
});
});