Download manga on nHentai.
// ==UserScript== // @name nHentai Downloader // @name:vi nHentai Downloader // @name:zh-CN nHentai 下载器 // @name:zh-TW nHentai 下载器 // @namespace http://devs.forumvi.com // @description Download manga on nHentai. // @description:vi Tải truyện tranh tại NhệnTái. // @description:zh-CN 在nHentai上下载漫画。 // @description:zh-TW 在nHentai上下载漫画。 // @version 3.2.1 // @icon http://i.imgur.com/FAsQ4vZ.png // @author Zzbaivong // @oujs:author baivong // @license MIT; https://baivong.mit-license.org/license.txt // @match http://nhentai.net/g/* // @match https://nhentai.net/g/* // @require https://code.jquery.com/jquery-3.6.0.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/dist/ponyfill.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/StreamSaver.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/examples/zip-stream.js // @require https://greasyfork.org/scripts/28536-gm-config/code/GM_config.js?version=184529 // @require https://greasemonkey.github.io/gm4-polyfill/gm4-polyfill.js?v=a834d46 // @noframes // @connect self // @supportURL https://github.com/lelinhtinh/Userscript/issues // @run-at document-idle // @grant GM.xmlHttpRequest // @grant GM_xmlhttpRequest // @grant unsafeWindow // @grant GM_getValue // @grant GM_setValue // @grant GM.getValue // @grant GM.setValue // ==/UserScript== /* global streamSaver, ZIP */ (($, window) => { 'use strict'; const configFrame = document.createElement('div'), $infoBlock = $('#info-block'); $infoBlock.append(configFrame); $infoBlock.append( '<p style="text-align:left;padding:0 10px;color:#ff7600"><i class="fa fa-exclamation-triangle"></i> Enable 3rd-party cookies to allow streaming downloads.</p>', ); GM_config.init({ id: 'nHentaiDlConfig', title: 'Downloader Settings', fields: { outputExt: { options: ['cbz', 'zip'], label: 'Export as', type: 'radio', default: 'cbz', }, outputName: { label: 'Filename', type: 'select', options: ['pretty', 'english', 'japanese'], default: 'pretty', }, threading: { label: 'Max. conn. number', type: 'unsigned int', min: 1, max: 16, default: 4, }, hideTorrentBtn: { label: 'Hide the download torrent button', type: 'checkbox', default: false, }, useProxy: { label: 'Use DuckDuckGo proxy', type: 'checkbox', default: false, }, }, frame: configFrame, events: { save: () => { outputExt = GM_config.get('outputExt'); outputName = GM_config.get('outputName'); threading = GM_config.get('threading'); hideTorrentBtn = GM_config.get('hideTorrentBtn'); useProxy = GM_config.get('useProxy'); $download.find('span').text(` as ${outputExt.toUpperCase()}`); $_download.toggle(!hideTorrentBtn); const $saveBtn = $('#nHentaiDlConfig_saveBtn'); $saveBtn.prop('disabled', true).addClass('saved').text('Saved!'); setTimeout(() => { $saveBtn.prop('disabled', false).removeClass('saved').text('Save'); }, 1500); }, }, css: '#nHentaiDlConfig{width:100%!important;position:initial!important;padding:10px!important;background:#0d0d0d;border:1px solid #313131!important;border-radius:5px;text-align:left}#nHentaiDlConfig *{font-family:"Noto Sans",sans-serif}#nHentaiDlConfig .config_header{text-align:left;font-size:17px;font-weight:700;margin-bottom:20px;color:#999}#nHentaiDlConfig .reset_holder{float:left;height:30px;line-height:30px}#nHentaiDlConfig .reset{color:#4d4d4d;text-align:left}#nHentaiDlConfig .saveclose_buttons{margin:0;padding:4px;min-width:100px;height:30px;line-height:14px;border-radius:2px;border:1px solid;cursor:pointer}#nHentaiDlConfig .saveclose_buttons.saved{background:#ffeb3b;border:1px solid #ffc107}#nHentaiDlConfig #nHentaiDlConfig_closeBtn{display:none}#nHentaiDlConfig_buttons_holder{margin-top:20px;border-top:1px dashed #4d4d4d;padding-top:11px}#nHentaiDlConfig .config_var::after{clear:both;content:"";display:block}#nHentaiDlConfig .config_var{position:relative}#nHentaiDlConfig .field_label{font-size:14px;height:26px;line-height:26px;margin:0;padding:0 10px 0 0;width:60%;display:block;float:left}#nHentaiDlConfig .config_var>[type=text],#nHentaiDlConfig .config_var>div,#nHentaiDlConfig .config_var>select,#nHentaiDlConfig .config_var>textarea{width:40%;border-radius:0;display:block;height:26px;line-height:26px;padding:0 10px;float:left}#nHentaiDlConfig .config_var>textarea{height:auto;line-height:14px;padding:10px;min-height:5em}#nHentaiDlConfig .config_var>select{background:#4d4d4d;color:#d9d9d9;padding:0}#nHentaiDlConfig .config_var>select:hover{background:#666}#nHentaiDlConfig .config_var>select:focus{outline:0 none}#nHentaiDlConfig .config_var>div>label{display:inline-block;vertical-align:top;margin-right:5px}#nHentaiDlConfig .config_var>#nHentaiDlConfig_field_outputName{width:150px;text-transform:capitalize}#nHentaiDlConfig .config_var>#nHentaiDlConfig_field_threading{width:70px}#nHentaiDlConfig .config_var>div{padding:0}#nHentaiDlConfig_field_outputExt{text-transform:uppercase}#nHentaiDlConfig_field_outputExt [value=cbz]{margin-right:20px!important}', }); /** * Output extension * @type {'cbz'|'zip'} * * Tips: Convert .zip to .cbz * Windows * $ ren *.zip *.cbz * Linux * $ rename 's/\.zip$/\.cbz/' *.zip */ let outputExt = GM_config.get('outputExt') || 'cbz'; /** * File name * @type {'pretty'|'english'|'japanese'} */ let outputName = GM_config.get('outputName') || 'pretty'; /** * Multithreading * @type {Number} [1 -> 16] */ let threading = GM_config.get('threading') || 4; /** * Hide Torrent Download button * @type {Boolean} */ let hideTorrentBtn = GM_config.get('hideTorrentBtn') || false; /** * Use proxy from DuckDuckGo * @type {Boolean} */ let useProxy = GM_config.get('useProxy') || false; /** * Logging * @type {Boolean} */ let debug = false; const _console = window.console; const _time = window.console.time; const _timeEnd = window.console.timeEnd; const log = (...arg) => { if (!debug) return; _console.log(arg); }; window.console = { log: () => null, clear: () => null, }; function base64toBlob(base64Data, contentType) { contentType = contentType || ''; const sliceSize = 1024; const byteCharacters = atob(base64Data); const bytesLength = byteCharacters.length; const slicesCount = Math.ceil(bytesLength / sliceSize); const byteArrays = new Array(slicesCount); for (let sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) { const begin = sliceIndex * sliceSize; const end = Math.min(begin + sliceSize, bytesLength); const bytes = new Array(end - begin); for (let offset = begin, i = 0; offset < end; ++i, ++offset) { bytes[i] = byteCharacters[offset].charCodeAt(0); } byteArrays[sliceIndex] = new Uint8Array(bytes); } return new Blob(byteArrays, { type: contentType }); } function getInfo() { let info = '', tags = [], artists = [], groups = [], parodies = [], characters = [], categories = [], languages = []; if (gallery.title.english) info += gallery.title.english + '\r\n'; if (gallery.title.japanese) info += gallery.title.japanese + '\r\n'; if (gallery.title.pretty) info += gallery.title.pretty + '\r\n'; info += '#' + gallery.id + '\r\n'; if (gallery.tags) { for (const tag of gallery.tags) { if (tag.type === 'tag') tags.push(tag.name); if (tag.type === 'artist') artists.push(tag.name); if (tag.type === 'category') categories.push(tag.name); if (tag.type === 'group') groups.push(tag.name); if (tag.type === 'parody') parodies.push(tag.name); if (tag.type === 'character') characters.push(tag.name); if (tag.type === 'language') languages.push(tag.name); } } if (tags.length) info += '\r\n' + 'Tags: ' + tags.join(', '); if (categories.length) info += '\r\n' + 'Categories: ' + categories.join(', '); if (groups.length) info += '\r\n' + 'Groups: ' + groups.join(', '); if (parodies.length) info += '\r\n' + 'Parodies: ' + parodies.join(', '); if (characters.length) info += '\r\n' + 'Characters: ' + characters.join(', '); if (languages.length) info += '\r\n' + 'Languages: ' + languages.join(', '); info += '\r\n\r\n' + 'Pages: ' + total; info += '\r\n' + 'Uploaded at: ' + new Date(gallery.upload_date * 1000).toLocaleString() + '\r\n'; log(info); return info; } function beforeleaving(e) { e.preventDefault(); e.returnValue = ''; } function end() { window.removeEventListener('beforeunload', beforeleaving); if (debug) _timeEnd('nHentai'); } function done(filename) { doc.title = `[⇓] ${filename}`; log('COMPLETE'); end(); } function genZip(ctrl) { ctrl.close(); $download.html('<i class="fa fa-check"></i> Complete').css('backgroundColor', hasErr ? 'red' : 'green'); } function dlImgError(current, success, error, err, filename) { if (images[current].attempt < 1) { final++; error(err, filename); return; } setTimeout(() => { log(filename, `retry ${images[current].attempt}`); dlImg(current, success, error); images[current].attempt--; }, 2000); } function dlImg(current, success, error) { let url = images[current].url, filename = url.replace(/.*\//g, ''); if (useProxy) url = `https://proxy.duckduckgo.com/iu/?u=${url}&f=1`; filename = `000${filename}`.slice(-8); log(filename, 'progress'); GM.xmlHttpRequest({ method: 'GET', url: url, responseType: 'blob', onload: (response) => { if ( response.response.type === 'text/html' || response.response.byteLength < 1000 || (response.statusText !== 'OK' && response.statusText !== '') ) { dlImgError(current, success, error, response, filename); return; } final++; success(response, filename); }, onerror: (err) => { dlImgError(current, success, error, err, filename); }, }); } function next(ctrl) { doc.title = `[${final}/${total}] ${comicName}`; $download.find('strong').text(`${final}/${total}`); log(final, current); if (final < current) return; final < total ? addZip(ctrl) : genZip(ctrl); } function addZip(ctrl) { let max = current + threading; if (max > total) max = total; for (current; current < max; current++) { log(images[current].url, 'download'); dlImg( current, (response, filename) => { ctrl.enqueue({ name: filename, stream: () => response.response.stream() }); log(filename, 'success'); next(ctrl); }, (err, filename) => { hasErr = true; const errGif = base64toBlob('R0lGODdhBQAFAIACAAAAAP/eACwAAAAABQAFAAACCIwPkWerClIBADs=', 'image/gif'); ctrl.enqueue({ name: `${filename}_error.gif`, stream: () => errGif.stream() }); $download.css('backgroundColor', '#FF7F7F'); log(err, 'error'); next(ctrl); }, ); } log(current, 'current'); } const gallery = JSON.parse(JSON.stringify(window._gallery)); log(gallery, 'gallery'); if (!gallery) return; let current = 0, final = 0, total = gallery.num_pages, images = gallery.images.pages, hasErr = false, $_download = $('#download-torrent, #download'), $download, $config, $configPanel, doc = document, comicId = gallery.id, comicName = gallery.title[outputName] || gallery.title['english'], zipName = `${comicName .replace(/[\s|+=]+/g, '-') .replace(/[:;`'"”“/\\?.,<>[\]{}!@#$%^&*]/g, '') .replace(/・/g, '·')}.${comicId}.${outputExt}`, readableStream, writableStream, inProgress = false; if (!$_download.length) return; GM_config.open(); $configPanel = $('#nHentaiDlConfig'); $download = $_download.clone(); $download.removeAttr('id'); $download.removeClass('btn-disabled'); $download.attr('href', '#download'); $download.find('.top').html('No login required<br>No sign up required<i></i>'); $download.append(`<span> as ${outputExt.toUpperCase()}</span>`); $download.insertAfter($_download); $download.before('\n'); $download.css('backgroundColor', 'cornflowerblue').on('click', (e) => { e.preventDefault(); if (inProgress) return; inProgress = true; if (debug) _time('nHentai'); log({ outputExt, outputName, threading }); if (threading < 1) threading = 1; if (threading > 16) threading = 16; doc.title = `[⇣] ${comicName}`; window.addEventListener('beforeunload', beforeleaving); $download .html('<i class="fa fa-spinner fa-spin"></i> <strong>Waiting...</strong>') .css('backgroundColor', 'orange'); images = images.map((img, index) => { return { url: `https://i.nhentai.net/galleries/${gallery.media_id}/${index + 1}.${ { j: 'jpg', p: 'png', g: 'gif' }[img.t] }`, attempt: 3, }; }); log(images, 'images'); streamSaver.mitm = 'https://lelinhtinh.github.io/stream/mitm.html'; writableStream = streamSaver.createWriteStream(zipName); const info = new Blob([getInfo()]); readableStream = new ZIP({ start(ctrl) { ctrl.enqueue({ name: 'info.txt', stream: () => info.stream(), }); }, pull(ctrl) { addZip(ctrl); }, }); if (window.WritableStream && readableStream.pipeTo) { readableStream.pipeTo(writableStream).then(() => { done(comicName); }); } else { const writer = writableStream.getWriter(); const reader = readableStream.getReader(); const pump = () => reader.read().then((res) => (res.done ? writer.close() : writer.write(res.value).then(pump))); pump().then(() => done(comicName)); } }); $configPanel.toggle(); $config = $_download.clone(); $config.removeAttr('id'); $config.removeClass('btn-disabled'); $config.attr('href', '#settings'); $config.css('min-width', '40px'); $config.html('<i class="fa fa-cog"></i><div class="top">Toggle settings<i></i></div>'); $config.insertAfter($download); $config.on('click', (e) => { e.preventDefault(); $configPanel.toggle('fast'); }); if (hideTorrentBtn) $_download.hide(); })(jQuery, unsafeWindow);
