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nHentai Downloader

Download manga on nHentai.

Per 02-08-2020. Zie de nieuwste versie.

  1. // ==UserScript==
  2. // @name            nHentai Downloader
  3. // @name:vi         nHentai Downloader
  4. // @name:zh         nHentai 下载器
  5. // @namespace       http://devs.forumvi.com
  6. // @description     Download manga on nHentai.
  7. // @description:vi  Tải truyện tranh tại NhệnTái.
  8. // @description:zh  在nHentai上下载漫画。
  9. // @version         2.1.1
  10. // @icon            http://i.imgur.com/FAsQ4vZ.png
  11. // @author          Zzbaivong
  12. // @oujs:author     baivong
  13. // @license         MIT; https://baivong.mit-license.org/license.txt
  14. // @match           http://nhentai.net/g/*
  15. // @match           https://nhentai.net/g/*
  16. // @require         https://code.jquery.com/jquery-3.5.1.min.js
  17. // @require         https://unpkg.com/jszip@3.1.5/dist/jszip.min.js
  18. // @require         https://greasyfork.org/scripts/28536-gm-config/code/GM_config.js?version=184529
  19. // @require         https://greasemonkey.github.io/gm4-polyfill/gm4-polyfill.js?v=a834d46
  20. // @require         https://cdn.jsdelivr.net/npm/web-streams-polyfill@2.0.2/dist/ponyfill.min.js
  21. // @require         https://cdn.jsdelivr.net/npm/streamsaver@2.0.3/StreamSaver.min.js
  22. // @noframes
  23. // @connect         self
  24. // @supportURL      https://github.com/lelinhtinh/Userscript/issues
  25. // @run-at          document-idle
  26. // @grant           GM.xmlHttpRequest
  27. // @grant           GM_xmlhttpRequest
  28. // @grant           unsafeWindow
  29. // @grant           GM_getValue
  30. // @grant           GM_setValue
  31. // @grant           GM.getValue
  32. // @grant           GM.setValue
  33. // ==/UserScript==
  34.  
  35. /* global streamSaver */
  36. (($, window) => {
  37.   'use strict';
  38.  
  39.   const configFrame = document.createElement('div');
  40.   $('#info-block').append(configFrame);
  41.  
  42.   GM_config.init({
  43.     id: 'nHentaiDlConfig',
  44.     title: 'Downloader Settings',
  45.     fields: {
  46.       outputExt: {
  47.         options: ['cbz', 'zip'],
  48.         label: 'Export as',
  49.         type: 'radio',
  50.         default: 'cbz',
  51.       },
  52.       outputName: {
  53.         label: 'Filename',
  54.         type: 'select',
  55.         options: ['pretty', 'english', 'japanese'],
  56.         default: 'pretty',
  57.       },
  58.       threading: {
  59.         label: 'Max. conn. number',
  60.         type: 'unsigned int',
  61.         min: 1,
  62.         max: 32,
  63.         default: 4,
  64.       },
  65.       hideTorrentBtn: {
  66.         label: 'Hide the download torrent button',
  67.         type: 'checkbox',
  68.         default: false,
  69.       },
  70.     },
  71.     frame: configFrame,
  72.     events: {
  73.       save: () => {
  74.         outputExt = GM_config.get('outputExt');
  75.         outputName = GM_config.get('outputName');
  76.         threading = GM_config.get('threading');
  77.  
  78.         $download.find('span').text(` as ${outputExt.toUpperCase()}`);
  79.  
  80.         if (GM_config.get('hideTorrentBtn') == true) {
  81.           $_download.hide();
  82.         } else {
  83.           $_download.show();
  84.         }
  85.  
  86.         const $saveBtn = $('#nHentaiDlConfig_saveBtn');
  87.         $saveBtn.prop('disabled', true).addClass('saved').text('Saved!');
  88.  
  89.         setTimeout(() => {
  90.           $saveBtn.prop('disabled', false).removeClass('saved').text('Save');
  91.         }, 1500);
  92.       },
  93.     },
  94.     css:
  95.       '#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}',
  96.   });
  97.  
  98.   /**
  99.    * Output extension
  100.    * @type {'cbz'|'zip'}
  101.    *
  102.    * Tips: Convert .zip to .cbz
  103.    * Windows
  104.    * $ ren *.zip *.cbz
  105.    * Linux
  106.    * $ rename 's/\.zip$/\.cbz/' *.zip
  107.    */
  108.   let outputExt = GM_config.get('outputExt') || 'cbz';
  109.  
  110.   /**
  111.    * File name
  112.    * @type {'pretty'|'english'|'japanese'}
  113.    */
  114.   let outputName = GM_config.get('outputName') || 'pretty';
  115.  
  116.   /**
  117.    * Multithreading
  118.    * @type {Number} [1 -> 32]
  119.    */
  120.   let threading = GM_config.get('threading') || 4;
  121.  
  122.   /**
  123.    * Logging
  124.    * @type {Boolean}
  125.    */
  126.   let debug = false;
  127.  
  128.   function end() {
  129.     $win.off('beforeunload');
  130.  
  131.     if (debug) console.timeEnd('nHentai');
  132.   }
  133.  
  134.   function getInfo() {
  135.     let info = '',
  136.       tags = [],
  137.       artists = [],
  138.       groups = [],
  139.       parodies = [],
  140.       characters = [],
  141.       categories = [],
  142.       languages = [];
  143.  
  144.     if (gallery.title.english) info += gallery.title.english + '\r\n';
  145.     if (gallery.title.japanese) info += gallery.title.japanese + '\r\n';
  146.     if (gallery.title.pretty) info += gallery.title.pretty + '\r\n';
  147.     info += '#' + gallery.id + '\r\n';
  148.  
  149.     if (gallery.tags) {
  150.       for (const tag of gallery.tags) {
  151.         if (tag.type === 'tag') tags.push(tag.name);
  152.         if (tag.type === 'artist') artists.push(tag.name);
  153.         if (tag.type === 'category') categories.push(tag.name);
  154.         if (tag.type === 'group') groups.push(tag.name);
  155.         if (tag.type === 'parody') parodies.push(tag.name);
  156.         if (tag.type === 'character') characters.push(tag.name);
  157.         if (tag.type === 'language') languages.push(tag.name);
  158.       }
  159.     }
  160.     if (tags.length) info += '\r\n' + 'Tags: ' + tags.join(', ');
  161.     if (categories.length) info += '\r\n' + 'Categories: ' + categories.join(', ');
  162.     if (groups.length) info += '\r\n' + 'Groups: ' + groups.join(', ');
  163.     if (parodies.length) info += '\r\n' + 'Parodies: ' + parodies.join(', ');
  164.     if (characters.length) info += '\r\n' + 'Characters: ' + characters.join(', ');
  165.     if (languages.length) info += '\r\n' + 'Languages: ' + languages.join(', ');
  166.  
  167.     info += '\r\n\r\n' + 'Pages: ' + total;
  168.     info += '\r\n' + 'Uploaded at: ' + new Date(gallery.upload_date * 1000).toLocaleString() + '\r\n';
  169.  
  170.     if (debug) console.log(info);
  171.     return info;
  172.   }
  173.  
  174.   function genZip() {
  175.     const filename = gallery.title[outputName] || gallery.title['english']; // e.g. #321311
  176.  
  177.     zip.file('info.txt', getInfo());
  178.     zip
  179.       .generateAsync(
  180.         {
  181.           type: 'blob',
  182.           compression: 'STORE',
  183.           streamFiles: true, // Less memory but less compatibility, https://stuk.github.io/jszip/documentation/api_jszip/generate_async.html#streamfiles-option
  184.         },
  185.         (metadata) => {
  186.           $download.html(`<i class="fa fa-file-archive"></i> ${metadata.percent.toFixed(2)} %`);
  187.         }
  188.       )
  189.       .then(
  190.         (blob) => {
  191.           const zipName = `${filename.replace(/\s+/g, '-').replace(/・/g, '·')}.${comicId}.${outputExt}`;
  192.  
  193.           $download
  194.             .html('<i class="fa fa-check"></i> Complete')
  195.             .css('backgroundColor', hasErr ? 'red' : 'green')
  196.             .attr({
  197.               href: 'javascript:void(0);',
  198.               download: zipName,
  199.             });
  200.  
  201.           const fileStream = streamSaver.createWriteStream(zipName, {
  202.             size: blob.size,
  203.           });
  204.           const readableStream = blob.stream();
  205.  
  206.           window.FSwriter = fileStream.getWriter();
  207.           const reader = readableStream.getReader();
  208.           const pump = () =>
  209.             reader
  210.               .read()
  211.               .then((res) => (res.done ? window.FSwriter.close() : window.FSwriter.write(res.value).then(pump)));
  212.           pump(); // Firefox does not support pipeTo() yet.
  213.  
  214.           doc.title = `[⇓] ${filename}`;
  215.           if (debug) console.log('COMPLETE');
  216.           end();
  217.         },
  218.         (reason) => {
  219.           $download.html('<i class="fa fa-exclamation"></i> Fail').css('backgroundColor', 'red');
  220.  
  221.           doc.title = `[x] ${filename}`;
  222.           if (debug) console.error(reason, 'ERROR');
  223.           end();
  224.         }
  225.       );
  226.   }
  227.  
  228.   function dlImg(current, success, error) {
  229.     let url = images[current].url,
  230.       filename = url.replace(/.*\//g, '');
  231.  
  232.     filename = `000${filename}`.slice(-8);
  233.     if (debug) console.log(filename, 'progress');
  234.  
  235.     GM.xmlHttpRequest({
  236.       method: 'GET',
  237.       url: url,
  238.       responseType: 'arraybuffer',
  239.       onload: (response) => {
  240.         final++;
  241.         success(response, filename);
  242.       },
  243.       onerror: (err) => {
  244.         if (images[current].attempt < 1) {
  245.           final++;
  246.           error(err, filename);
  247.           return;
  248.         }
  249.  
  250.         setTimeout(() => {
  251.           if (debug) console.log(filename, `retry ${images[current].attempt}`);
  252.           dlImg(current, success, error);
  253.           images[current].attempt--;
  254.         }, 2000);
  255.       },
  256.     });
  257.   }
  258.  
  259.   function next() {
  260.     $download.find('span').text(`${final}/${total}`);
  261.     if (debug) console.log(final, current);
  262.  
  263.     if (final < current) return;
  264.     final < total ? addZip() : genZip();
  265.   }
  266.  
  267.   function addZip() {
  268.     let max = current + threading;
  269.     if (max > total) max = total;
  270.  
  271.     for (current; current < max; current++) {
  272.       if (debug) console.log(images[current].url, 'download');
  273.       dlImg(
  274.         current,
  275.         (response, filename) => {
  276.           zip.file(filename, response.response);
  277.  
  278.           if (debug) console.log(filename, 'success');
  279.           next();
  280.         },
  281.         (err, filename) => {
  282.           hasErr = true;
  283.           // zip.file(filename + '_error.txt', err.statusText + '\r\n' + err.finalUrl);
  284.           zip.file(`${filename}_${comicId}_error.gif`, 'R0lGODdhBQAFAIACAAAAAP/eACwAAAAABQAFAAACCIwPkWerClIBADs=', {
  285.             base64: true,
  286.           });
  287.           $download.css('backgroundColor', '#FF7F7F');
  288.  
  289.           if (debug) console.log(filename, 'error');
  290.           next();
  291.         }
  292.       );
  293.     }
  294.     if (debug) console.log(current, 'current');
  295.   }
  296.  
  297.   const gallery = JSON.parse(JSON.stringify(window._gallery));
  298.   if (debug) console.log(gallery, 'gallery');
  299.   if (!gallery) return;
  300.  
  301.   let zip = new JSZip(),
  302.     current = 0,
  303.     final = 0,
  304.     total = gallery.num_pages,
  305.     images = gallery.images.pages,
  306.     hasErr = false,
  307.     $_download = $('#download-torrent, #download'),
  308.     $download,
  309.     $config,
  310.     $configPanel,
  311.     doc = document,
  312.     $win = $(window),
  313.     comicId = gallery.id;
  314.  
  315.   if (!$_download.length) return;
  316.   GM_config.open();
  317.   $configPanel = $('#nHentaiDlConfig');
  318.  
  319.   window.URL = window.URL || window.webkitURL;
  320.  
  321.   $download = $_download.clone();
  322.   $download.removeAttr('id');
  323.   $download.removeClass('btn-disabled');
  324.   $download.attr('href', '#download');
  325.   $download.find('.top').html('No login required<br>No sign up required<i></i>');
  326.   $download.append(`<span> as ${outputExt.toUpperCase()}</span>`);
  327.  
  328.   $download.insertAfter($_download);
  329.   $download.before('\n');
  330.  
  331.   $download.css('backgroundColor', 'cornflowerblue').one('click', (e) => {
  332.     e.preventDefault();
  333.     if (debug) console.time('nHentai');
  334.     if (debug) console.log({ outputExt, outputName, threading });
  335.  
  336.     if (threading < 1) threading = 1;
  337.     if (threading > 32) threading = 32;
  338.  
  339.     $win.on('beforeunload', () => {
  340.       return 'Progress is running...';
  341.     });
  342.  
  343.     $download.html('<i class="fa fa-spinner fa-spin"></i> <span>Waiting...</span>').css('backgroundColor', 'orange');
  344.  
  345.     images = images.map((img, index) => {
  346.       return {
  347.         url: `https://i.nhentai.net/galleries/${gallery.media_id}/${index + 1}.${
  348.           { j: 'jpg', p: 'png', g: 'gif' }[img.t]
  349.         }`,
  350.         attempt: 3,
  351.       };
  352.     });
  353.     if (debug) console.log(images, 'images');
  354.  
  355.     addZip();
  356.   });
  357.  
  358.   $configPanel.toggle();
  359.   $config = $_download.clone();
  360.   $config.removeAttr('id');
  361.   $config.removeClass('btn-disabled');
  362.   $config.attr('href', 'javascript:void(0);');
  363.   $config.css('min-width', '40px');
  364.   $config.html('<i class="fa fa-cog"></i>');
  365.  
  366.   $config.insertAfter($download);
  367.   $config.before('\n');
  368.   $config.on('click', () => {
  369.     $configPanel.toggle('fast');
  370.   });
  371.  
  372.   if (GM_config.get('hideTorrentBtn') == true) $_download.hide();
  373. })(jQuery, unsafeWindow);