On the comic pages of E and Ex, create a download button that can use [compressed download/single image download] to automatically download images.
// ==UserScript==
// @name [E/Ex-Hentai] Downloader
// @name:zh-TW [E/Ex-Hentai] 下載器
// @name:zh-CN [E/Ex-Hentai] 下载器
// @name:ja [E/Ex-Hentai] ダウンローダー
// @name:ko [E/Ex-Hentai] 다운로더
// @name:en [E/Ex-Hentai] Downloader
// @version 0.0.10
// @author HentaiSaru
// @description 在 E 和 Ex 的漫畫頁面, 創建下載按鈕, 可使用[壓縮下載/單圖下載], 自動獲取圖片下載
// @description:zh-TW 在 E 和 Ex 的漫畫頁面, 創建下載按鈕, 可使用[壓縮下載/單圖下載], 自動獲取圖片下載
// @description:zh-CN 在 E 和 Ex 的漫画页面, 创建下载按钮, 可使用[压缩下载/单图下载], 自动获取图片下载
// @description:ja EとExの漫画ページで、ダウンロードボタンを作成し、[圧縮ダウンロード/単一画像ダウンロード]を使用して、自動的に画像をダウンロードします。
// @description:ko E 및 Ex의 만화 페이지에서 다운로드 버튼을 만들고, [압축 다운로드/단일 이미지 다운로드]를 사용하여 이미지를 자동으로 다운로드합니다.
// @description:en On the comic pages of E and Ex, create a download button that can use [compressed download/single image download] to automatically download images.
// @match https://e-hentai.org/*
// @match https://exhentai.org/*
// @icon https://e-hentai.org/favicon.ico
// @license MIT
// @namespace https://greasyfork.org/users/989635
// @run-at document-body
// @grant GM_addStyle
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_download
// @grant GM_addElement
// @grant GM_xmlhttpRequest
// @grant GM_registerMenuCommand
// @require https://greasyfork.org/scripts/473358-jszip/code/JSZip.js?version=1237031
// @require https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js
// ==/UserScript==
(function() {
const Ex_HManga = /https:\/\/exhentai\.org\/g\/\d+\/[a-zA-Z0-9]+/;
const E_HManga = /https:\/\/e-hentai\.org\/g\/\d+\/[a-zA-Z0-9]+/;
var parser, language, ModeDisplay, ListenerRecord, OriginalTitle, CompressMode,
url = document.URL.split("?p=")[0];
/* ============ 可調設置 ============ */
let DeBug = false;
const Delay = {
Home: 100, // 主頁數據獲取延遲
Image: 30, // 圖片連結獲取延遲
Download: 300, // 下載速度延遲
}
/* ============ 運行入口 ============ */
/* 判斷創建的網址格式 */
if (Ex_HManga.test(url) || E_HManga.test(url)) {
/* 宣告 (減少不須創建時的性能開銷) */
parser = new DOMParser();
ListenerRecord = new Map();
OriginalTitle = document.title;
language = display_language(navigator.language);
CompressMode = GM_getValue("CompressedMode", []);
/* 創建按鈕 */
ButtonCreation();
/* 創建菜單 */
GM_registerMenuCommand(language.MN_01, function() {DownloadModeSwitch()});
}
/* ============ API ============ */
/* 自適應css */
function AdaptiveCSS(e, ex) {
const Domain = location.hostname;
if (Domain === "e-hentai.org") {
GM_addStyle(`${e}`);
} else if (Domain === "exhentai.org") {
GM_addStyle(`${ex}`);
}
}
/* work創建 */
function WorkerCreation(code) {
let blob = new Blob([code], {type: "application/javascript"});
return new Worker(URL.createObjectURL(blob));
}
/* 添加監聽器 */
async function addlistener(element, type, listener, add={}) {
if (!ListenerRecord.has(element) || !ListenerRecord.get(element).has(type)) {
element.addEventListener(type, listener, add);
if (!ListenerRecord.has(element)) {
ListenerRecord.set(element, new Map());
}
ListenerRecord.get(element).set(type, listener);
}
}
/* ============ 按鈕創建 ============ */
async function ButtonCreation() {
let download_button;
GM_addStyle(`
.Download_Button {
float: right;
width: 9rem;
cursor: pointer;
font-weight: bold;
line-height: 20px;
border-radius: 5px;
position: relative;
padding: 1px 5px 2px;
font-family: arial,helvetica,sans-serif;
}
`);
// 自適應樣式
AdaptiveCSS(`
.Download_Button {
color: #5C0D12;
border: 2px solid #9a7c7e;
background-color: #EDEADA;
}
.Download_Button:hover {
color: #8f4701;
border: 2px dashed #B5A4A4;
}
.Download_Button:disabled {
color: #B5A4A4;
border: 2px dashed #B5A4A4;
cursor: default;
}
`,`
.Download_Button {
color: #b3b3b3;
border: 2px solid #34353b;
background-color: #2c2b2b;
}
.Download_Button:hover {
color: #f1f1f1;
border: 2px dashed #4f535b;
}
.Download_Button:disabled {
color: #4f535b;
border: 2px dashed #4f535b;
cursor: default;
}
`);
try {
download_button = GM_addElement(document.querySelector("div#gd2"), "button", {class: "Download_Button"});
if (CompressMode) {
ModeDisplay = language.DM_01;
} else {
ModeDisplay = language.DM_02;
}
download_button.textContent = ModeDisplay;
addlistener(download_button, "click", () => {
download_button.textContent = language.DS_01;
download_button.disabled = true;
HomeDataProcessing(download_button);
}, {capture: true, passive: true});
} catch {}
}
/* ============ 數據處理 ============ */
/* 非法字元排除 */
function IllegalFilter(Name) {
return Name.replace(/[\/\?<>\\:\*\|":]/g, '');
}
/* 取得總頁數 */
function GetTotal(page) {
return +page[page.length - 2].textContent.replace(/\D/g, '');
}
/* 圖片擴展名 */
function GetExtension(link) {
try {
const match = link.match(/\.([^.]+)$/);
return match[1].toLowerCase() || "png";
} catch {return "png"}
}
/* ============ 獲取處理 ============ */
/* 主頁數據處理 */
async function HomeDataProcessing(button) {
let title, homepage = new Map(), task = 0, DC = 1,
pages = GetTotal(document.querySelectorAll("#gdd td.gdt2"));
title = document.getElementById("gj").textContent.trim() || document.getElementById("gn").textContent.trim();
title = IllegalFilter(title);
pages = Math.ceil(pages / 20);
const worker = WorkerCreation(`
let queue = [], processing = false;
onmessage = function(e) {
const {index, url} = e.data;
queue.push({index, url});
if (!processing) {
processQueue();
processing = true;
}
}
async function processQueue() {
if (queue.length > 0) {
const {index, url} = queue.shift();
FetchRequest(index, url);
setTimeout(processQueue, ${Delay.Home});
}
}
async function FetchRequest(index, url) {
try {
const response = await fetch(url);
const html = await response.text();
postMessage({index, html, error: false});
} catch {
postMessage({index, url, error: true});
}
}
`)
// 傳遞訊息
worker.postMessage({index: 0, url: url});
for (let index = 1; index < pages; index++) {
worker.postMessage({index, url: `${url}?p=${index}`});
}
// 接受訊息
worker.onmessage = function(e) {
const {index, html, error} = e.data;
if (!error) {GetLink(index, parser.parseFromString(html, "text/html"))}
else {FetchRequest(index, html, 10)}
}
// 獲取連結
async function GetLink(index, data) {
const homebox = [];
data.querySelectorAll("#gdt a").forEach(link => {
homebox.push(link.href)
});
homepage.set(index, homebox);
document.title = `[${DC}/${pages}]`;
button.textContent = `${language.DS_02}: [${DC}/${pages}]`;
DC++; // 顯示效正
task++; // 任務進度
}
// 數據試錯請求
async function FetchRequest(index, url, retry) {
try {
const response = await fetch(url);
const html = await response.text();
await GetLink(index, parser.parseFromString(html, "text/html"));
} catch {
if (retry > 0) {
await FetchRequest(index, url, retry-1);
} else {
task++;
}
}
}
// 等待全部處理完成 (雖然會吃資源, 但是比較能避免例外)
let interval = setInterval(() => {
if (task === pages) {
clearInterval(interval);
worker.terminate();
const homebox = [];
for (let i = 0; i < homepage.size; i++) {
homebox.push(...homepage.get(i));
}
if (DeBug) {
console.groupCollapsed("Home Page Data");
console.log(`[Title] : ${title}`);
console.log(homebox);
console.groupEnd();
}
ImageLinkProcessing(button, title, homebox);
}
}, 300);
}
/* 漫畫連結處理 */
async function ImageLinkProcessing(button, title, link) {
let imgbox = new Map(), pages = link.length, DC = 1, task = 0;
const worker = WorkerCreation(`
let queue = [], processing = false;
onmessage = function(e) {
const {index, url} = e.data;
queue.push({index, url});
if (!processing) {
processQueue();
processing = true;
}
}
async function processQueue() {
if (queue.length > 0) {
const {index, url} = queue.shift();
FetchRequest(index, url);
setTimeout(processQueue, ${Delay.Image});
}
}
async function FetchRequest(index, url) {
try {
const response = await fetch(url);
const html = await response.text();
postMessage({index, html, error: false});
} catch {
postMessage({index, url, error: true});
}
}
`)
// 傳遞訊息
for (let index = 0; index < pages; index++) {
worker.postMessage({index, url: link[index]});
}
// 接收回傳
worker.onmessage = function(e) {
const {index, html, error} = e.data;
if (!error) {GetLink(index, parser.parseFromString(html, "text/html").getElementById("img"))}
else {FetchRequest(index, html, 10)}
}
// 獲取連結
async function GetLink(index, data) {
imgbox.set(index, data.src || data.href );
document.title = `[${DC}/${pages}]`;
button.textContent = `${language.DS_03}: [${DC}/${pages}]`;
DC++; // 顯示效正
task++; // 任務進度
}
// 數據試錯請求
async function FetchRequest(index, url, retry) {
try {
const response = await fetch(url);
const html = await response.text();
await GetLink(index, parser.parseFromString(html, "text/html").getElementById("img"));
} catch {
if (retry > 0) {
await FetchRequest(index, url, retry-1);
} else {
task++;
}
}
}
// 等待完成
let interval = setInterval(() => {
if (task === pages) {
clearInterval(interval);
worker.terminate();
if (DeBug) {
console.groupCollapsed("Img Link Data");
console.log(imgbox);
console.groupEnd();
}
DownloadTrigger(button, title, imgbox);
}
}, 300);
}
/* ============ 下載處理 ============ */
/* 下載觸發器 */
async function DownloadTrigger(button, title, link) {
if (CompressMode) {ZipDownload(button, title, link)}
else {ImageDownload(button, title, link)}
}
/* 壓縮下載 */
async function ZipDownload(Button, Folder, ImgData) {
const zip = new JSZip(), Total = ImgData.size, promises = [];
let progress = 1, count = 0, link, mantissa, extension;
async function Request(index, retry) {
link = ImgData.get(index);
extension = GetExtension(link);
return new Promise((resolve, reject) => {
if (typeof link !== "undefined") {
GM_xmlhttpRequest({
method: "GET",
url: link,
responseType: "blob",
headers : {"user-agent": navigator.userAgent},
onload: response => {
if (response.status === 200 && response.response instanceof Blob && response.response.size > 0) {
mantissa = (index + 1).toString().padStart(4, '0');
zip.file(`${Folder}/${mantissa}.${extension}`, response.response);
document.title = `[${progress}/${Total}]`;
Button.textContent = `${language.DS_04}: [${progress}/${Total}]`;
progress++;
resolve();
} else {
if (retry > 0) {
if (DeBug) {console.log(`Request Retry : [${retry}]`)}
Request(index, retry-1);
resolve();
} else {
reject(new Error("Request error"));
}
}
},
onerror: error => {
if (retry > 0) {
if (DeBug) {console.log(`Request Retry : [${retry}]`)}
Request(index, retry-1);
resolve();
} else {
console.groupCollapsed("Request Error");
console.log(`[Request Error] : ${link}`);
console.groupEnd();
reject(error);
}
}
})
} else {reject(new Error("undefined url"))}
});
}
for (let i = 0; i < Total; i++) {
promises.push(Request(i, 10));
count++;
if (count === 5) {
count = 0;
await new Promise(resolve => setTimeout(resolve, Delay.Download));
}
}
await Promise.allSettled(promises);
Compression();
async function Compression() {
zip.generateAsync({
type: "blob",
compression: "DEFLATE",
compressionOptions: {
level: 5
}
}, (progress) => {
document.title = `${progress.percent.toFixed(1)} %`;
Button.textContent = `${language.DS_05}: ${progress.percent.toFixed(1)} %`;
}).then(async zip => {
await saveAs(zip, `${Folder}.zip`);
Button.textContent = language.DS_06;
document.title = `✓ ${OriginalTitle}`;
setTimeout(() => {
Button.textContent = `✓ ${ModeDisplay}`;
Button.disabled = false;
}, 3000);
}).catch(result => {
Button.textContent = language.DS_07;
document.title = OriginalTitle;
setTimeout(() => {
Button.textContent = ModeDisplay;
Button.disabled = false;
}, 6000);
})
}
}
/* 單圖下載 */
async function ImageDownload(Button, Folder, ImgData) {
const Total = ImgData.size, promises = [];
let progress = 1, link, extension;
async function Request(index, retry) {
link = ImgData.get(index);
extension = GetExtension(link);
return new Promise((resolve, reject) => {
if (typeof link !== "undefined") {
GM_download({
url: link,
name: `${Folder}_${(index + 1).toString().padStart(4, '0')}.${extension}`,
headers : {"user-agent": navigator.userAgent},
onload: () => {
document.title = `[${progress}/${Total}]`;
Button.textContent = `${language.DS_04}: [${progress}/${Total}]`;
progress++;
resolve();
},
onerror: () => {
if (retry > 0) {
if (DeBug) {console.log(`Request Retry : [${retry}]`)}
Request(index, retry-1);
resolve();
} else {
reject(new Error("Request error"));
}
}
})
} else {reject(new Error("undefined url"))}
});
}
for (let i = 0; i < Total; i++) {
promises.push(Request(i));
await new Promise(resolve => setTimeout(resolve, Delay.Download));
}
await Promise.allSettled(promises);
Button.textContent = language.DS_08;
setTimeout(() => {
Button.textContent = `✓ ${ModeDisplay}`;
Button.disabled = false;
}, 3000);
}
/* ============ 附加功能 ============ */
/* 下載模式切換 */
async function DownloadModeSwitch() {
if (CompressMode){
GM_setValue("CompressedMode", false);
} else {
GM_setValue("CompressedMode", true);
}
location.reload();
}
/* 顯示語言 */
function display_language(language) {
let display = {
"zh-TW": [{
"MN_01" : "🔁 切換下載模式",
"DM_01" : "壓縮下載",
"DM_02" : "單圖下載",
"DS_01" : "開始下載",
"DS_02" : "獲取頁面",
"DS_03" : "獲取連結",
"DS_04" : "下載進度",
"DS_05" : "壓縮封裝",
"DS_06" : "壓縮完成",
"DS_07" : "壓縮失敗",
"DS_08" : "下載完成"
}],
"zh-CN": [{
"MN_01" : "🔁 切换下载模式",
"DM_01" : "压缩下载",
"DM_02" : "单图下载",
"DS_01" : "开始下载",
"DS_02" : "获取页面",
"DS_03" : "获取链接",
"DS_04" : "下载进度",
"DS_05" : "压缩封装",
"DS_06" : "压缩完成",
"DS_07" : "压缩失败",
"DS_08" : "下载完成"
}],
"ja": [{
"MN_01" : "🔁 ダウンロードモードの切り替え",
"DM_01" : "圧縮ダウンロード",
"DM_02" : "単一画像ダウンロード",
"DS_01" : "ダウンロード開始",
"DS_02" : "ページを取得する",
"DS_03" : "リンクを取得する",
"DS_04" : "ダウンロードの進捗状況",
"DS_05" : "圧縮パッケージング",
"DS_06" : "圧縮完了",
"DS_07" : "圧縮に失敗しました",
"DS_08" : "ダウンロードが完了しました"
}],
"en-US": [{
"MN_01" : "🔁 Switch download mode",
"DM_01" : "Compressed download",
"DM_02" : "Single image download",
"DS_01" : "Start download",
"DS_02" : "Get page",
"DS_03" : "Get link",
"DS_04" : "Download progress",
"DS_05" : "Compressed packaging",
"DS_06" : "Compression complete",
"DS_07" : "Compression failed",
"DS_08" : "Download complete"
}],
"ko": [{
"MN_01" : "🔁 다운로드 모드 전환",
"DM_01" : "압축 다운로드",
"DM_02" : "단일 이미지 다운로드",
"DS_01" : "다운로드 시작",
"DS_02" : "페이지 가져오기",
"DS_03" : "링크 가져오기",
"DS_04" : "다운로드 진행 상황",
"DS_05" : "압축 포장",
"DS_06" : "압축 완료",
"DS_07" : "압축 실패",
"DS_08" : "다운로드 완료"
}]
};
if (display.hasOwnProperty(language)) {
return display[language][0];
} else {
return display["en-US"][0];
}
}
})();