nHentai Downloader

Download manga on nHentai.net

Tính đến 19-11-2017. Xem phiên bản mới nhất.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

Bạn sẽ cần cài đặt một tiện ích mở rộng như Tampermonkey hoặc Violentmonkey để cài đặt kịch bản này.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         nHentai Downloader
// @namespace    http://devs.forumvi.com
// @description  Download manga on nHentai.net
// @version      1.6.0
// @icon         http://i.imgur.com/FAsQ4vZ.png
// @author       Zzbaivong
// @license      MIT
// @match        http://nhentai.net/g/*
// @match        https://nhentai.net/g/*
// @require      https://code.jquery.com/jquery-3.2.1.slim.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.4/jszip.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.3/FileSaver.min.js
// @require      https://greasemonkey.github.io/gm4-polyfill/gm4-polyfill.js
// @noframes
// @connect      self
// @supportURL   https://github.com/baivong/Userscript/issues
// @run-at       document-idle
// @grant        GM_xmlhttpRequest
// @grant        GM.xmlHttpRequest
// ==/UserScript==

jQuery(function ($) {
    'use strict';

    /**
     * Output extension
     * @type {String} zip
     *                cbz
     *
     * Tips: Convert .zip to .cbz
     * Windows
     * $ ren *.zip *.cbz
     * Linux
     * $ rename 's/\.zip$/\.cbz/' *.zip
     */
    var outputExt = 'cbz'; // or 'zip'

    /**
     * Multithreading
     * @type {Number} [1 -> 32]
     */
    var threading = 8;

    /**
     * Logging
     * @type {Boolean}
     */
    var debug = false;


    function end() {
        $win.off('beforeunload');

        if (debug) console.timeEnd('nHentai');
    }

    function getInfo() {
        var $info = $('#info'),
            $h1 = $info.find('h1'),
            $h2 = $info.find('h2'),
            $tags = $('#tags').clone(),
            info = '';

        $tags.find('.tag-container.hidden').remove();
        $tags.find('.count').remove();
        $tags.find('.tags a').replaceWith(function () {
            return this.textContent.trim() + ', ';
        });
        $tags.find('.tags').replaceWith(function () {
            return this.textContent.trim().slice(0, -1);
        });
        $tags.find('.tag-container').replaceWith(function () {
            return this.textContent.trim().replace(/[\n\s\t]{2,}/, ' ');
        });

        if ($h1.length) info += $h1.text().trim() + '\r\n';
        if ($h2.length) info += $h2.text().trim() + '\r\n';
        if ($tags.length) info += '\r\n' + $tags.text().trim().replace(/[\n\s\t]{2,}/g, '\r\n');

        if (debug) console.log(info);
        return info;
    }

    function genZip() {
        zip.file('info.txt', getInfo());

        zip.generateAsync({
            type: 'blob'
        }).then(function (blob) {
            var zipName = tit.split(' » ')[0]
                .replace(/\s/g, '_') + '.' + comicId + '.' + outputExt;

            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;
            if (debug) console.log('COMPLETE');
            end();
        }, function (reason) {
            $download.html('<i class="fa fa-exclamation"></i> Fail')
                .css('backgroundColor', 'red');

            doc.title = '[x] ' + tit;
            if (debug) console.error(reason, 'ERROR');
            end();
        });
    }

    function dlImg(url, success, error) {
        var filename = url.replace(/.*\//g, '');
        filename = filename.split('.');
        filename = ('0000' + filename[0]).slice(-4) + '.' + filename[1];

        if (debug) console.log(filename, 'progress');
        GM.xmlHttpRequest({
            method: 'GET',
            url: url,
            responseType: 'arraybuffer',
            onload: function (response) {
                final++;
                success(response, filename);
            },
            onerror: function (err) {
                final++;
                error(err, filename);
            }
        });
    }

    function next() {
        $download.html('<i class="fa fa-cog fa-spin"></i> ' + final + '/' + total);
        if (debug) console.log(final, current);

        if (final < current) return;
        final < total ? addZip() : genZip();
    }

    function addZip() {
        var max = current + threading;
        if (max > total) max = total;

        for (current; current < max; current++) {
            var url = images[current];

            if (debug) console.log(url, 'download');
            dlImg(url, function (response, filename) {
                zip.file(filename, response.response);

                if (debug) console.log(filename, 'success');
                next();
            }, function (err, filename) {
                zip.file(filename + '_' + comicId + '_error.gif', 'R0lGODdhBQAFAIACAAAAAP/eACwAAAAABQAFAAACCIwPkWerClIBADs=', {
                    base64: true
                });
                $download.css('backgroundColor', '#FF7F7F');

                if (debug) console.log(filename, 'error');
                next();
            });
        }
        if (debug) console.log(current, 'current');
    }


    var zip = new JSZip(),
        prevZip = false,
        current = 0,
        final = 0,
        total = 0,
        images = [],
        $images = $('#thumbnail-container img'),
        $download = $('#download-torrent, #download'),
        doc = document,
        tit = doc.title,
        $win = $(window),
        comicId = location.pathname.match(/\d+/)[0];

    if (!$images.length || !$download.length) return;

    window.URL = window.URL || window.webkitURL;

    $download.css('backgroundColor', 'cornflowerblue')
        .one('click', function (e) {
            e.preventDefault();
            if (debug) console.time('nHentai');

            if (threading < 1) threading = 1;
            if (threading > 32) threading = 32;

            $win.on('beforeunload', function () {
                return 'Progress is running...';
            });

            $download.attr('href', '#download')
                .html('<i class="fa fa-cog fa-spin"></i> Waiting...')
                .css('backgroundColor', 'orange');

            $images.each(function (i, v) {
                var src = $(v).data('src');

                if (/^\/\/t\./i.test(src)) src = location.protocol + src;
                src = src.replace('t.n', 'i.n')
                    .replace(/\/(\d+)t\./, '/$1.');

                images[i] = src;
            });

            total = images.length;
            addZip();
        });

});