// ==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 0.0.3
// @author HentiSaru
// @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-end
// @grant GM_addStyle
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_download
// @grant GM_addElement
// @grant GM_xmlhttpRequest
// @grant GM_registerMenuCommand
// @require https://cdnjs.cloudflare.com/ajax/libs/jszip/3.9.1/jszip.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js
// ==/UserScript==
var count = 0,
ModeDisplay,
parser = new DOMParser(),
OriginalTitle = document.title,
url = window.location.href.split("?p=")[0],
CompressMode = GM_getValue("CompressedMode", []),
language = display_language(navigator.language);
(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]+/;
if (Ex_HManga.test(url) || E_HManga.test(url)) {
ButtonCreation();
}
GM_registerMenuCommand(language[0], function() {DownloadModeSwitch()}, "C");
})();
/* 按鈕創建 */
async function ButtonCreation() {
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;
}
`);
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;
}
`);
let download_button;
try {
download_button = GM_addElement(document.querySelector("div#gd2"), "button", {
class: "Download_Button"
});
if (CompressMode) {
ModeDisplay = language[1];
} else {
ModeDisplay = language[2];
}
download_button.textContent = ModeDisplay;
download_button.addEventListener("click", function() {
download_button.textContent = language[3];
download_button.disabled = true;
HomeDataProcessing(download_button);
});
} catch {}
}
/* 非法字元排除 */
function IllegalFilter(Name) {
return Name.replace(/[\/\?<>\\:\*\|":]/g, '');
}
/* 取得總頁數 */
function GetTotal(page) {
return parseInt(page[page.length - 2].textContent.replace(/\D/g, ''));
}
/* 取得漫畫擴展名 */
function GetExtension(link) {
try {
const match = link.match(/\.([^.]+)$/);
if (match) {return match[1].toLowerCase()}
return "png";
} catch {return "png"}
}
/* 主頁數據處理 */
async function HomeDataProcessing(button) {
let title,
homebox = [],
pages = GetTotal(document.querySelector("div#gdd").querySelectorAll("td.gdt2"));
try {
title = document.getElementById("gj").textContent.trim();
if (title === "") {throw new Error()}
} catch {
title = document.getElementById("gn").textContent.trim();
if (title === "") {title = language[4]}
}
title = IllegalFilter(title);
pages = Math.ceil(pages / 20);
async function GetLink(data) { // 獲取頁面所有連結
data.querySelector("#gdt").querySelectorAll("a").forEach(link => {
homebox.push(link.href);
});
}
async function FetchRequest(url) { // 數據請求
const response = await fetch(url);
const html = await response.text();
GetLink(parser.parseFromString(html, "text/html"));
}
const promises = [FetchRequest(url)];
for (let i = 1; i < pages; i++) {
promises.push(FetchRequest(`${url}?p=${i}`));
button.textContent = `${language[5]}: [${i+1}/${pages}]`;
await new Promise(resolve => setTimeout(resolve, 150));
}
await Promise.allSettled(promises);
ImageLinkProcessing(button, title, homebox);
}
/* 漫畫連結處理 */
async function ImageLinkProcessing(button, title, link) {
let imgbox = new Map(), pages = link.length;
async function GetLink(index, data) {
try {
imgbox.set(index, data.src);
button.textContent = `${language[6]}: [${index + 1}/${pages}]`;
} catch {
try {
imgbox.set(index, data.href);
button.textContent = `${language[6]}: [${index + 1}/${pages}]`;
} catch {}
}
}
async function FetchRequest(index, url) {
try {
const response = await fetch(url);
const html = await response.text();
GetLink(index, parser.parseFromString(html, "text/html").querySelector("img#img"));
} catch (error) {
await FetchRequest(index, url);
}
}
const promises = [];
for (let index = 0; index < pages; index++) {
promises.push(FetchRequest(index, link[index]));
await new Promise(resolve => setTimeout(resolve, 50));
}
await Promise.allSettled(promises);
DownloadTrigger(button, title, imgbox);
}
/* 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, link, mantissa, extension, BackgroundWork, retry=0;
async function Request(index) {
link = ImgData.get(index);
extension = GetExtension(link);
return new Promise((resolve) => {
if (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[7]}: [${progress}/${Total}]`;
progress++;
resolve();
} else {
retry++;
if (retry < 10) {
Request(index)
} else {resolve()}
}
},
onerror: error => {
resolve();
}
});
} else {
document.title = `[${progress}/${Total}]`;
Button.textContent = `${language[7]}: [${progress}/${Total}]`;
progress++;
resolve();
}
});
}
for (let i = 0; i < Total; i++) {
promises.push(Request(i));
count++;
if (count === 20) {
count = 0;
await new Promise(resolve => setTimeout(resolve, 1000));
}
}
await Promise.allSettled(promises);
Compression();
async function Compression() {
if (typeof(Worker) !== "undefined" && typeof(BackgroundWork) === "undefined") {
BackgroundWork = new Worker(BackgroundCreation());
BackgroundWork.postMessage([
await zip.generateAsync({
type: "blob",
compression: "DEFLATE",
compressionOptions: {
level: 5
}
}, (progress) => {
document.title = `${progress.percent.toFixed(1)} %`;
Button.textContent = `${language[8]}: ${progress.percent.toFixed(1)} %`;
}).then(zip => {
saveAs(zip, `${Folder}.zip`);
Button.textContent = language[9];
document.title = OriginalTitle;
setTimeout(() => {
Button.textContent = ModeDisplay;
Button.disabled = false;
}, 3000);
}).catch(result => {
Button.textContent = language[10];
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, retry=0;
async function Request(index) {
link = ImgData.get(index);
extension = GetExtension(link);
return new Promise((resolve) => {
if (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[7]}: [${progress}/${Total}]`;
progress++;
resolve();
},
onerror: () => {
retry++;
if (retry < 10) {
Request(index);
} else {resolve()}
}
});
} else {
document.title = `[${progress}/${Total}]`;
Button.textContent = `${language[7]} [${progress}/${Total}]`;
progress++;
resolve();
}
});
}
for (let i = 0; i < Total; i++) {
promises.push(Request(i));
}
await Promise.allSettled(promises);
Button.textContent = language[11];
setTimeout(() => {
Button.textContent = ModeDisplay;
Button.disabled = false;
}, 3000);
}
/* 下載模式切換 */
async function DownloadModeSwitch() {
if (CompressMode){
GM_setValue("CompressedMode", false);
} else {
GM_setValue("CompressedMode", true);
}
location.reload();
}
/* 自適應css */
function AdaptiveCSS(e, ex) {
const Domain = window.location.hostname;
if (Domain === "e-hentai.org") {
GM_addStyle(`${e}`);
} else if (Domain === "exhentai.org") {
GM_addStyle(`${ex}`);
}
}
/* work創建 */
function BackgroundCreation() {
let blob = new Blob([""], {type: "application/javascript"});
return URL.createObjectURL(blob);
}
/* 顯示語言 */
function display_language(language) {
let display = {
"zh-TW": [
"🔁 切換下載模式",
"壓縮下載",
"單圖下載",
"開始下載",
"未找到標題",
"獲取頁面",
"獲取連結",
"下載進度",
"壓縮封裝",
"壓縮完成",
"壓縮失敗",
"下載完成"
],
"zh-CN": [
"🔁 切换下载模式",
"压缩下载",
"单图下载",
"开始下载",
"未找到标题",
"获取页面",
"获取链接",
"下载进度",
"压缩封装",
"压缩完成",
"压缩失败",
"下载完成"
],
"ja": [
"🔁 ダウンロードモードの切り替え",
"圧縮ダウンロード",
"単一画像ダウンロード",
"ダウンロード開始",
"タイトルが見つかりませんでした",
"ページを取得する",
"リンクを取得する",
"ダウンロードの進捗状況",
"圧縮パッケージング",
"圧縮完了",
"圧縮に失敗しました",
"ダウンロードが完了しました"
],
"en": [
"🔁 Switch download mode",
"Compressed download",
"Single image download",
"Start download",
"Title not found",
"Get page",
"Get link",
"Download progress",
"Compressed packaging",
"Compression complete",
"Compression failed",
"Download complete"
],
"ko": [
"🔁 다운로드 모드 전환",
"압축 다운로드",
"단일 이미지 다운로드",
"다운로드 시작",
"제목을 찾을 수 없습니다",
"페이지 가져오기",
"링크 가져오기",
"다운로드 진행 상황",
"압축 포장",
"압축 완료",
"압축 실패",
"다운로드 완료"
]
};
return display[language] || display["en"];
}
