Manga downloader for pocket.shonenmagazine.com
// ==UserScript== // @name MagapokeDownloader // @namespace https://github.com/Timesient/manga-download-scripts // @version 0.4 // @license GPL-3.0 // @author Timesient // @description Manga downloader for pocket.shonenmagazine.com // @icon https://pocket.shonenmagazine.com/img/favicon.ico // @homepageURL https://greasyfork.org/scripts/536294-magapokedownloader // @supportURL https://github.com/Timesient/manga-download-scripts/issues // @match https://pocket.shonenmagazine.com/* // @require https://unpkg.com/[email protected]/dist/axios.min.js // @require https://unpkg.com/[email protected]/dist/jszip.min.js // @require https://unpkg.com/[email protected]/dist/FileSaver.min.js // @require https://unpkg.com/[email protected]/crypto-js.js // @require https://update.greasyfork.org/scripts/451810/1398192/ImageDownloaderLib.js // @grant GM_info // @grant GM_xmlhttpRequest // @grant unsafeWindow // ==/UserScript== (async function(axios, JSZip, saveAs, CryptoJS, ImageDownloader) { 'use strict'; // reload page when enter or leave chapter const re = /https:\/\/pocket\.shonenmagazine\.com\/title\/\d+\/episode\/\d+/; const oldHref = window.location.href; const timer = setInterval(() => { const newHref = window.location.href; if (newHref === oldHref) return; if (re.test(newHref) || re.test(oldHref)) { clearInterval(timer); window.location.reload(); } }, 200); // return if not reading chapter now if (!re.test(oldHref)) return; // build config const config = { episodeID: window.location.pathname.match(/\/episode\/(?<episodeID>\d+)/).groups.episodeID, apiServerUrl: unsafeWindow.__NUXT__.config.public.apiServerUrl, platform: unsafeWindow.__NUXT__.config.public.platform.toString(), } // get episode data const episodeData = await fetch(`${config.apiServerUrl}/episode/list`, { method: 'POST', credentials: 'include', headers: { 'content-type': 'application/x-www-form-urlencoded', 'X-Manga-Hash': getServiceHash({ platform: config.platform, episode_id_list: config.episodeID }), 'X-Manga-Is-Crawler': 'false', 'X-Manga-Platform': config.platform }, body: `platform=${config.platform}&episode_id_list=${config.episodeID}` }).then(res => res.json()); // get page data const params = { platform: config.platform, episode_id: config.episodeID }; const pageData = await fetch(`${config.apiServerUrl}/web/episode/viewer?${new URLSearchParams(params)}`, { method: 'GET', credentials: 'include', headers: { 'X-Manga-Hash': getServiceHash(params), 'X-Manga-Is-Crawler': 'false', 'X-Manga-Platform': config.platform } }).then(res => res.json()); // get title, url of images and scramble seed const title = episodeData.episode_list.pop().episode_name; const imageURLs = pageData.page_list; const scrambleSeed = pageData.scramble_seed || 1; // setup ImageDownloader ImageDownloader.init({ maxImageAmount: imageURLs.length, getImagePromises, title }); // collect promises of image function getImagePromises(startNum, endNum) { return imageURLs .slice(startNum - 1, endNum) .map(url => getDecryptedImage(url) .then(ImageDownloader.fulfillHandler) .catch(ImageDownloader.rejectHandler) ); } // get promise of decrypted image function getDecryptedImage(url) { return new Promise(async resolve => { const imageArrayBuffer = await new Promise(_resolve => { GM_xmlhttpRequest({ method: 'GET', url, responseType: 'arraybuffer', onload: res => _resolve(res.response) }); }); const image = document.createElement('img'); image.src = 'data:image/jpg;base64,' + window.btoa(new Uint8Array(imageArrayBuffer).reduce((data, byte) => data + String.fromCharCode(byte), '')); image.onload = function () { // create canvas const canvas = document.createElement('canvas'); const context = canvas.getContext('2d'); canvas.width = this.width; canvas.height = this.height; context.drawImage(this, 0, 0); const Cs = (a, e, s) => { if (a < s * 8 || e < s * 8) return null; const o = Math.floor(a / 8); const t = Math.floor(e / 8); const u = Math.floor(o / s); const r = Math.floor(t / s); return { width: u * 8, height: r * 8 }; } const Ts = function*(e) { const i = Uint32Array.of(e); for (; ;) i[0] ^= i[0] << 13, i[0] ^= i[0] >>> 17, i[0] ^= i[0] << 5, yield i[0] } const Ls = (e, i) => { const t = Ts(i); return e.map(o => [t.next().value, o]).sort( (o, l) => +(o[0] > l[0]) - +(l[0] > o[0])).map(o => o[1]) } const Is = function*(e, i) { yield*Ls([...Array(e ** 2)].map((s, o) => o), i).map((s, o) => ({ source: { x: s % e, y: Math.floor(s / e) }, dest: { x: o % e, y: Math.floor(o / e) } })) } const o = Cs(this.width, this.height, 4); for (const l of Is(4, scrambleSeed)) { context.drawImage(this, l.source.x * o.width, l.source.y * o.height, o.width, o.height, l.dest.x * o.width, l.dest.y * o.height, o.width, o.height); } canvas.toBlob(resolve, 'image/jpeg', 1); } }); } function getServiceHash(params) { const SHA256 = (stringContent) => CryptoJS.SHA256(stringContent).toString(CryptoJS.enc.Hex); const SHA512 = (stringContent) => CryptoJS.SHA512(stringContent).toString(CryptoJS.enc.Hex); const keys = Object.keys(params).sort(); const arr = []; for (const key of keys) { arr.push(`${SHA256(key)}_${SHA512(params[key])}`); } const part1 = SHA256(arr.toString()); const part2 = `${SHA256('')}_${SHA512('')}`; return SHA512(`${part1}${part2}`); } })(axios, JSZip, saveAs, CryptoJS, ImageDownloader);
