Download nHentai doujin as compression file easily, and add some useful features. Also support NyaHentai.
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// ==UserScript== // @name nHentai Helper // @name:zh-CN nHentai 助手 // @name:zh-TW nHentai 助手 // @namespace https://github.com/Tsuk1ko // @version 2.6.1 // @icon https://nhentai.net/favicon.ico // @description Download nHentai doujin as compression file easily, and add some useful features. Also support NyaHentai. // @description:zh-CN 为 nHentai 增加压缩打包下载方式以及一些辅助功能，同时支持 NyaHentai // @description:zh-TW 爲 nHentai 增加壓縮打包下載方式以及一些輔助功能，同時支持 NyaHentai // @author Jindai Kirin // @match https://nhentai.net/* // @include /^https:\/\/[^\/]*nyahentai/ // @connect nhentai.net // @connect i.nhentai.net // @connect json2jsonp.com // @connect search.pstatic.net // @license GPL-3.0 // @grant GM_addStyle // @grant GM_getValue // @grant GM_setValue // @grant GM_deleteValue // @grant GM_registerMenuCommand // @grant GM_xmlhttpRequest // @grant GM_getResourceText // @resource notycss https://cdn.jsdelivr.net/npm/[email protected]/lib/noty.min.css // @require https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/dist/jszip.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/dist/FileSaver.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/jquery.pjax.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js // @require https://cdn.jsdelivr.net/npm/[email protected]/lib/noty.min.js // @require https://cdn.jsdelivr.net/gh/pvorb/node-md5@master/dist/md5.min.js // @run-at document-start // @inject-into content // @noframes // @homepageURL https://github.com/Tsuk1ko/nhentai-helper // @supportURL https://github.com/Tsuk1ko/nhentai-helper/issues // ==/UserScript== $(() => { 'use strict'; // 防 nhentai console 屏蔽 if (typeof unsafeWindow.N !== 'undefined') { const isNodeOrElement = typeof Node === 'object' && typeof HTMLElement === 'object' ? o => o instanceof Node || o instanceof HTMLElement : o => o && typeof o === 'object' && typeof o.nodeType === 'number' && typeof o.nodeName === 'string'; const c = unsafeWindow.console; c._clear = c.clear; c.clear = () => {}; c._log = c.log; c.log = function () { const args = Array.from(arguments).filter(value => !isNodeOrElement(value)); if (args.length) return c._log(...args); }; unsafeWindow.Date = Date; } Array.prototype.remove = function (index) { if (index > -1) return this.splice(index, 1)[0]; }; const HISTORY_MAX = 1000; // 下载线程数 let THREAD = GM_getValue('thread_num', 8); GM_registerMenuCommand('Download Thread', () => { let num; do { num = prompt( `Please input the number of threads you want (1~32) Currnet: ${THREAD}`, THREAD ); if (num === null) return; num = parseInt(num); } while (num.toString() == 'NaN' || num < 1 || num > 32); THREAD = num; GM_setValue('thread_num', num); }); // 在新窗口打开本子 let OPEN_ON_NEW_TAB = GM_getValue('open_on_new_tab', true); GM_registerMenuCommand('Open On New Tab', () => { OPEN_ON_NEW_TAB = confirm(`Do you want to open gallery page on a new tab? Current: ${OPEN_ON_NEW_TAB ? 'Yes' : 'No'} Please refresh to take effect after modification.`); GM_setValue('open_on_new_tab', OPEN_ON_NEW_TAB); }); // 自定义下载地址 let CUSTOM_DOWNLOAD_URL = GM_getValue('custom_download_url', ''); GM_registerMenuCommand('Custom Download URL', () => { const input = prompt( `WARNING: Please don't set it if you don't know what this does. Set it empty will restore it to default. Available placeholders: {{mid}} - Media ID {{index}} - Page index, starting from 1 {{ext}} - Image file extension`, CUSTOM_DOWNLOAD_URL ); if (input === null) return; CUSTOM_DOWNLOAD_URL = input.trim(); GM_setValue('custom_download_url', CUSTOM_DOWNLOAD_URL); }); // 自定义压缩文件名 const CF_EXT_OLD = GM_getValue('cf_ext'); if (CF_EXT_OLD) { GM_setValue('cf_name', `{{japanese}}.${CF_EXT_OLD}`); GM_deleteValue('cf_ext'); } let CF_NAME = GM_getValue('cf_name', '{{japanese}}.zip'); GM_registerMenuCommand('Compression Filename', () => { const input = prompt( `You can custom the naming of downloaded compression file, including the file extension. Set it empty will restore it to default. Available placeholders: {{english}} - English name of doujin {{japanese}} - Japanese name of doujin {{pretty}} - English simple title of doujin {{id}} - Gallery ID {{pages}} - Number of pages`, CF_NAME ); if (input === null) return; CF_NAME = input.trim() || '{{japanese}}.zip'; GM_setValue('cf_name', CF_NAME); }); // 自定义压缩级别 let C_LEVEL = parseInt(GM_getValue('c_lv', '0')) || 0; GM_registerMenuCommand('Compression Level', () => { let num; do { num = prompt( `Please input a number (0-9) as compression level. 0: store (no compression) 1: lowest (best speed) ... 9: highest (best compression)`, C_LEVEL ); if (num === null) return; num = parseInt(num.trim()); } while (isNaN(num) || num < 0 || num > 9); C_LEVEL = num; GM_setValue('c_lv', C_LEVEL); }); const getCompressionOptions = () => { if (C_LEVEL === 0) return {}; return { compression: 'DEFLATE', compressionOptions: { level: C_LEVEL }, }; }; GM_addStyle(GM_getResourceText('notycss')); GM_addStyle('.download-zip:disabled{cursor:wait}.gallery>.download-zip{position:absolute;z-index:1;left:0;top:0;opacity:.8}.gallery:hover>.download-zip{opacity:1}#download-panel::-webkit-scrollbar{width:6px;background-color:rgba(0,0,0,.7)}#download-panel::-webkit-scrollbar-thumb{background-color:rgba(255,255,255,.6)}#download-panel{ overflow-x:hidden;position:fixed;top:20vh;right:0;width:calc(50vw - 620px);max-width:300px;min-width:150px;max-height:60vh;background-color:rgba(0,0,0,.7);z-index:100;font-size:12px;overflow-y:scroll}.download-item{position:relative;white-space:nowrap;padding:2px;overflow:visible}.download-item-cancel{cursor:pointer;position:absolute;top:0;right:-30px;color:#F44336;font-size:20px;line-height:30px;width:30px}.download-item:hover{width:calc(100% - 30px)}.download-item-title{overflow:hidden;text-overflow:ellipsis;text-align:left}.download-item-progress{background-color:rgba(0,0,255,.5);line-height:10px}.download-error .download-item-progress{background-color:rgba(255,0,0,.5)}.download-compressing .download-item-progress{background-color:rgba(0,255,0,.5)}.download-item-progress-text{transform:scale(.8)}#page-container{position:relative}#gp-view-mode-btn{position:absolute;right:0;top:0;margin:0}.btn-noty-green{background-color:#66BB6A!important}.btn-noty-blue{background-color:#42A5F5!important}.btn-noty:hover{filter:brightness(1.15)}.noty_buttons{padding-top:0!important}@media screen and (max-width:768px){#page-container{padding-top:40px}}'); $('body').append('<div id="download-panel"></div>'); const getTextFromTemplate = (template, values) => Object.keys(values).reduce((pre, key) => pre.replace(new RegExp(`{{${key}}}`, 'g'), values[key]), template); const getDpDlExt = () => { const paths = CF_NAME.split('.'); const ext = paths[paths.length - 1]; if (typeof ext === 'string') return ext.toUpperCase(); return 'ZIP'; }; const notyOption = { type: 'error', layout: 'bottomRight', theme: 'nest', timeout: false, closeWith: [], }; const EXT = { p: 'png', j: 'jpg', g: 'gif' }; const getExtension = _t => { if (!EXT[_t]) throw new Error(`Unknown type "${_t}"`); return EXT[_t]; }; const sleep = ms => new Promise(resolve => setTimeout(resolve, ms)); // 页面类型 const pageType = { gallery: /^\/g\/[0-9]+\/(\?.*)?$/.test(window.location.pathname), galleryPage: /^\/g\/[0-9]+(\/list)?\/[0-9]+\/(\?.*)?$/.test(window.location.pathname), list: $('.gallery').length > 0, }; const isNyahentai = /nyahentai/.test(window.location.host); // 下载队列 const queue = []; const queueInfo = JSON.parse(sessionStorage.getItem('queueInfo')) || []; const downloadHistory = JSON.parse(localStorage.getItem('downloadHistory')) || []; const downloadHistorySet = new Set(downloadHistory); const isDownloaded = title => downloadHistorySet.has(MD5(title)) || downloadHistorySet.has(title); const downloadStatus = { running: false, skip: false, }; const startQueue = async () => { if (!downloadStatus.running && queue.length > 0) { downloadStatus.running = true; do { await queue[0](); queue.shift(); } while (queue.length > 0); downloadStatus.running = false; } }; // 下载面板 Vue.component('download-item', { props: ['item', 'index'], computed: { width() { const { page, done, compressing, compressingPercent } = this.item; return compressing ? compressingPercent.toFixed(2) : page && done ? ((100 * done) / page).toFixed(2) : 0; }, }, watch: { 'item.error': function (error) { if (error) { const n = new Noty({ ...notyOption, text: `Error occurred, retry?`, buttons: [ Noty.button('SKIP', 'btn btn-noty', () => { n.close(); queue.shift(); queueInfo.shift(); downloadStatus.running = false; startQueue(); }), Noty.button('YES', 'btn btn-noty-green btn-noty', () => { n.close(); this.item.error = false; downloadStatus.running = false; startQueue(); }), ], }); n.show(); } }, }, methods: { cancel() { if (this.index === 0) { downloadStatus.skip = true; queueInfo.shift(); } else { queue.remove(this.index); const q = queueInfo.remove(this.index); if (q && typeof q.cancel === 'function') q.cancel(); } }, }, template: '<div class="download-item" :class="{ \'download-error\': item.error, \'download-compressing\': item.compressing && !item.error }" :title="item.title"><div class="download-item-cancel" @click="cancel"><i class="fa fa-times"></i></div><div class="download-item-title">{{item.title}}</div><div class="download-item-progress" :style="{ width: `${width}%` }"><div class="download-item-progress-text">{{ width }}%</div></div></div>', }); Vue.component('download-list', { props: ['list'], template: '<div v-if="list && list.length" id="download-panel"><download-item v-for="(item, index) in list" :item="item" :index="index" :key="index" /></div>', }); new Vue({ el: '#download-panel', data: { queueInfo, downloadHistory, downloadStatus }, watch: { queueInfo(val) { sessionStorage.setItem('queueInfo', JSON.stringify(val)); }, downloadHistory(val) { while (val.length > HISTORY_MAX) val.shift(); localStorage.setItem('downloadHistory', JSON.stringify(val)); }, }, template: '<download-list :list="queueInfo" />', }); // 网络请求 const get = (url, responseType = 'json', retry = 3) => new Promise((resolve, reject) => { try { GM_xmlhttpRequest({ method: 'GET', url, responseType, onerror: e => { if (retry === 0) reject(e); else { console.warn('Network error, retry.'); setTimeout(() => { resolve(get(url, responseType, retry--)); }, 1000); } }, onload: ({ status, response }) => { if (status === 200) resolve(response); else if (retry === 0) reject(e); else { console.warn(status, url); setTimeout(() => { resolve(get(url, responseType, retry--)); }, 500); } }, }); } catch (error) { reject(error); } }); const proxyGetJSON = url => get(`https://json2jsonp.com/?url=${encodeURIComponent(url)}&callback=cbfunc`, '').then(jsonp => JSON.parse(jsonp.replace(/^cbfunc\((.*)\)$/, '$1'))); const nhentaiGalleryApi = gid => { const url = `https://nhentai.net/api/gallery/${gid}`; return isNyahentai ? proxyGetJSON(url) : get(url); }; const getDownloadURL = (mid, filename) => (isNyahentai ? `https://search.pstatic.net/common?type=origin&src=https://i.nyahentai.net/galleries/${mid}/${filename}` : `https://i.nhentai.net/galleries/${mid}/${filename}`); // 伪多线程 const multiThread = async (tasks, promiseFunc) => { const threads = []; let taskIndex = 0; const run = threadID => new Promise(async resolve => { while (true) { let i = taskIndex++; if (i >= tasks.length) break; await promiseFunc(tasks[i], threadID); } resolve(); }); // 创建线程 for (let threadID = 0; threadID < THREAD; threadID++) { await sleep(Math.min(2000 / THREAD, 300)); threads.push(run(threadID)); } return Promise.all(threads); }; // 获取本子信息 const getGallery = async gid => { const gallery = unsafeWindow.gallery; const { id, media_id, title: { english, japanese, pretty }, images: { pages }, num_pages, } = gid ? await nhentaiGalleryApi(gid) : typeof gallery === 'undefined' ? await nhentaiGalleryApi((gid = /\/g\/([0-9]+)/.exec(window.location.pathname)[1])) : (gid = gallery.id) && gallery; const p = []; pages.forEach((page, i) => { p.push({ i: i + 1, t: getExtension(page.t), }); }); const info = { mid: media_id, title: japanese || english, pages: p, cfName: getTextFromTemplate(CF_NAME, { english, japanese: japanese || english, pretty, id, pages: num_pages, }), }; console.log({ gid, ...info }); return info; }; // 下载本子 const downloadGallery = async ({ mid, pages, cfName }, $btn = null, $btnTxt = null, headTxt = false) => { const info = queueInfo[0] || {}; info.done = 0; const zip = new JSZip(); const btnDownloadProgress = () => { if ($btnTxt) $btnTxt.html(`${headTxt ? `Download ${getDpDlExt()} ` : ''}${info.done}/${pages.length}`); }; const btnCompressingProgress = (percent = 0) => { if ($btnTxt) $btnTxt.html(`${headTxt ? 'Compressing ' : ''}${percent.toFixed()}%`); }; btnDownloadProgress(); const dlPromise = (page, threadID) => { if (info.error || downloadStatus.skip) return; const filename = `${page.i}.${page.t}`; const url = CUSTOM_DOWNLOAD_URL ? getTextFromTemplate(CUSTOM_DOWNLOAD_URL, { mid: mid, index: page.i, ext: page.t }) : getDownloadURL(mid, filename); console.log(`[${threadID}] ${url}`); return get(url, 'blob') .then(r => { zip.file(filename, r); info.done++; btnDownloadProgress(); }) .catch(e => { info.error = true; throw e; }); }; await multiThread(pages, dlPromise); if (downloadStatus.skip) return {}; info.compressing = true; btnCompressingProgress(); console.log('Compressing', cfName); let lastZipFile = ''; const data = await zip.generateAsync({ type: 'blob', ...getCompressionOptions() }, ({ percent, currentFile }) => { if (lastZipFile !== currentFile && currentFile) { lastZipFile = currentFile; console.log(`${percent.toFixed(2)}%`, currentFile); } btnCompressingProgress(percent); info.compressingPercent = percent; }); console.log('Done'); if ($btnTxt) $btnTxt.html(`${headTxt ? `Download ${getDpDlExt()} ` : ''}√`); if ($btn) $btn.attr('disabled', false); queueInfo.shift(); return { name: cfName, data, }; }; const downloadG = async (gid, $btn = null, $btnTxt = null, headTxt = '') => downloadGallery(await getGallery(gid), $btn, $btnTxt, headTxt); // 语言过滤 const langFilter = lang => { if (lang == 'none') $('.gallery').removeClass('hidden'); else { $(`.gallery[lang=${lang}]`).removeClass('hidden'); $(`.gallery:not([lang=${lang}])`).addClass('hidden'); } }; // 本子浏览模式 const applyGPViewStyle = gpViewMode => { if (gpViewMode) $('body').append(`<style id="gp-view-mode-style">#image-container img{width:auto;max-width:calc(100vw - 20px);max-height:${isNyahentai ? 'calc(100vh - 65px)' : '100vh'}}</style>`); else $('#gp-view-mode-style').remove(); }; // 功能初始化 const init = (first = false) => { if (!first) { $('.pagination a').each(function () { const $this = $(this); $this.attr('href', $this.attr('href').replace(/(&?)_pjax=[^&]*(&?)/, '')); }); // pjax 后需要初始化页面以加载 lazyload 图片 const N = unsafeWindow.N; if (typeof N !== 'undefined') { N.init(); } else if (!isNyahentai) { $('img.lazyload').each((_, e) => { const $e = $(e); $e.attr('src', $e.data('src')); $e.removeClass('lazyload'); }); } } if (pageType.gallery) { // 本子详情页 $('#info > .buttons').append(`<button class="btn btn-secondary download-zip"><i class="fa fa-download"></i> <span class="download-zip-txt">Download ${getDpDlExt()}</span></button>`); const $btn = $('.download-zip'); const $btnTxt = $('.download-zip-txt'); let zip, info; $btn.click(async () => { $btn.attr('disabled', true); if (!info) info = await getGallery(); const downloaded = isDownloaded(info.title); if (downloaded) { const abandon = new Promise(resolve => { const n = new Noty({ ...notyOption, text: `"${info.title}" is already downloaded.<br>Do you want to download again?`, buttons: [ Noty.button('YES', 'btn btn-noty', () => { n.close(); resolve(false); }), Noty.button('NO', 'btn btn-noty-green btn-noty', () => { n.close(); resolve(true); }), ], }); n.show(); }); if (await abandon) { $btn.attr('disabled', false); return; } } try { if (!zip) zip = await downloadGallery(info, $btn, $btnTxt, true); saveAs(zip.data, zip.name); if (!downloaded) { const md5 = MD5(info.title); downloadHistory.push(md5); downloadHistorySet.add(md5); } } catch (error) { $btn.attr('disabled', false); $btnTxt.html('Error'); console.error(error); } }); } else if (pageType.list) { // 本子列表页 $('.gallery').each(function () { const $this = $(this); $this.prepend('<button class="btn btn-secondary download-zip"><i class="fa fa-download"></i> <span class="download-zip-txt"></span></button>'); const $a = $this.find('a.cover'); if (OPEN_ON_NEW_TAB) $a.attr('target', '_blank'); const gid = /[0-9]+/.exec($a.attr('href'))[0]; // 用于语言过滤 let language = ''; const dataTags = $this.attr('data-tags').split(' '); if (dataTags.includes('6346')) language = 'jp'; else if (dataTags.includes('12227')) language = 'en'; else if (dataTags.includes('29963')) language = 'zh'; $this.attr('lang', language); const $btn = $this.find('.download-zip'); const $btnTxt = $this.find('.download-zip-txt'); const cancel = () => { $btn.attr('disabled', false); $btnTxt.html(''); }; $btn.click(async () => { $btn.attr('disabled', true); $btnTxt.html('Wait'); const gallery = await getGallery(gid); const downloaded = isDownloaded(gallery.title); if (downloaded || queueInfo.some(({ title }) => title == gallery.title)) { const abandon = new Promise(resolve => { const n = new Noty({ ...notyOption, text: `"${gallery.title}" is already downloaded or in queue.<br>Do you want to download again?`, buttons: [ Noty.button('YES', 'btn btn-noty', () => { n.close(); resolve(false); }), Noty.button('NO', 'btn btn-noty-green btn-noty', () => { n.close(); resolve(true); $btn.attr('disabled', false); $btnTxt.html(''); }), ], }); n.show(); }); if (await abandon) return; } queueInfo.push({ gid, title: gallery.title, page: gallery.pages.length, done: 0, error: false, compressing: false, compressingPercent: 0, cancel, }); queue.push(async () => { const { data, name } = await downloadGallery(gallery, $btn, $btnTxt); if (downloadStatus.skip) { downloadStatus.skip = false; cancel(); return; } saveAs(data, name); if (!downloaded) { const md5 = MD5(gallery.title); downloadHistory.push(md5); downloadHistorySet.add(md5); } }); startQueue(); }); }); if (first) { // 语言过滤 $('ul.menu.left').append('<li style="padding:0 10px">Filter: <select id="lang-filter"><option value="none">None</option><option value="zh">Chinese</option><option value="jp">Japanese</option><option value="en">English</option></select></li>'); $('#lang-filter').change(function () { langFilter(this.value); sessionStorage.setItem('lang-filter', this.value); }); // 左右键翻页 $(document).keydown(function (event) { switch (event.keyCode) { case 37: // left $('.pagination .previous').click(); break; case 39: // right $('.pagination .next').click(); break; } }); } // 还原记住的语言过滤 const rememberedLANG = sessionStorage.getItem('lang-filter'); if (rememberedLANG) { $('#lang-filter')[0].value = rememberedLANG; langFilter(rememberedLANG); } // 还原下载队列 if (first) { for (const { gid, title } of queueInfo) { queue.push(async () => { const { data, name } = await downloadG(gid); if (downloadStatus.skip) { downloadStatus.skip = false; return; } saveAs(data, name); if (!isDownloaded(title)) { const md5 = MD5(title); downloadHistory.push(md5); downloadHistorySet.add(md5); } }); } } startQueue(); } else if (pageType.galleryPage) { // 本子在线阅读 const gpViewModeText = ['[off]', '[on]']; let gpViewMode = GM_getValue('gp_view_mode', 0); applyGPViewStyle(gpViewMode); $('#page-container').prepend(`<button id="gp-view-mode-btn" class="btn btn-secondary"><i class="fa fa-arrows-v"></i> <span>100% view height</span> <span id="gp-view-mode-switch-text">${gpViewModeText[gpViewMode]}</span></button>`); const $gpvmst = $('#gp-view-mode-switch-text'); $('#gp-view-mode-btn').click(() => { gpViewMode = 1 - gpViewMode; GM_setValue('gp_view_mode', gpViewMode); $gpvmst.html(gpViewModeText[gpViewMode]); applyGPViewStyle(gpViewMode); }); } }; $(document).pjax('.pagination a, .sort a', { container: '#content', fragment: '#content', timeout: 10000 }); $(document).on('pjax:end', () => init()); init(true); });
