Enhanced download of wnacg
Fra
// ==UserScript==
// @name wnacgDownload
// @namespace yrWnacg
// @version 2.8
// @description Enhanced download of wnacg
// @author Toudaimori
// @match http*://*.wnacg.com/photos-index-page-*.html
// @match http*://*.wnacg.org/photos-index-page-*.html
// @match http*://*.wnacg.com/photos-index-aid-*.html
// @match http*://*.wnacg.org/photos-index-aid-*.html
// @grant GM_xmlhttpRequest
// @grant GM_openInTab
// ==/UserScript==
'use strict';
// Global Defines
const waitingStr = `排隊中`;
const downloadStr = `已下載`;
const timeout = 1000; // time interval between retry
const successCountLimit = 3; // How many continous success checks required to start download, set 0 for instant download
const closeTabInterval = -1; // set to -1 to avoid auto close new opened tabs
const closeWindowInterval = -1; // set to -1 to avoid auto close current window
const protocol = location.protocol
// Modified from https://gist.github.com/WebReflection/df05641bd04954f6d366
// with predefined object specific, for HTML entities only
function _Unescape(s) {
var re = /&(?:amp|#38|lt|#60|gt|#62|apos|#39|quot|#34);/g;
var unescaped = {
'&': '&',
'&': '&',
'<': '<',
'<': '<',
'>': '>',
'>': '>',
''': "'",
''': "'",
'"': '"',
'"': '"',
'-': '-'
};
return s.replace(re, function (m) {
return escape(unescaped[m]);
});
}
async function FetchTarget()
{
const resp = await fetch(location.href);
const result = await resp.text();
const match = result.match(/href=\"(\/download-index-aid-.*)"/);
return `${protocol}//wnacg.org` + match[1];
}
async function ParseDownloadLink(target)
{
const resp = await fetch(target);
const result = await resp.text();
const matches = result.match(/href="\/\/(.*wnacg\.download.*)"/);
const rawLink = `${protocol}//` + _Unescape(matches[1]); // fixs download re-naming of server behaviour
return new URL(rawLink).href;
}
function GetCategory()
{
let raw = document.querySelector('.asTBcell.uwconn label').textContent
raw = raw.replace(/分類：/, '').replace(/ /g, '').replace(/\//g,'')
return encodeURIComponent(raw)
}
async function DisplayDownloading(event)
{
const btn = document.querySelector('#YrDownloadBtn');
const block = document.querySelector('#YrStatusBlock');
const status = document.querySelector('#YrStatus');
const retryCount = document.querySelector('#YrRetryCount');
const lastRetry = document.querySelector('#YrLastRetry');
const url = btn.href.replace(/&_ga=.*/, '') // remove ga since it sucks and broke server renaming function;
let retries = 0;
let successCount = 0;
const Download = (onSuccessCallback, onFailCallback) => {
GM_xmlhttpRequest({
method: "HEAD",
url: url,
headers: { // Without header it return 200 and seldom return 503 even if service is not availiable
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
"Accept-Language": "zh-TW,zh;q=0.8,en-US;q=0.5,en;q=0.3",
"Upgrade-Insecure-Requests": "1",
"Pragma": "no-cache",
"Cache-Control": "no-cache"
},
timeout: 1000 * 10,
onerror: function (error) {
console.log('onerror')
successCount = 0;
onFailCallback();
},
onload: function (response) {
console.log(`successCount = ${successCount}, code = ${response.status}`);
if(response.status == 200) {
successCount += 1;
if (successCount >= successCountLimit) {
onSuccessCallback();
}
else {
onFailCallback();
}
}
else {
successCount = 0;
onFailCallback();
}
}
});
};
const OnSuccess = () => {
status.textContent = downloadStr;
const openTab = async () => {
console.log(url)
// open download link in new tab, use it with set auto download to specific types
const tab = await GM_openInTab(url);
// auto close tab
if (closeTabInterval > 0) {
await new Promise((resolve) => setTimeout(resolve, closeTabInterval));
tab.close();
}
// auto close window, use it with brower config: allow script to close window
// e.g. Firefox: dom.allow_scripts_to_close_windows
if (closeWindowInterval > 0) {
setTimeout(() => window.close(), closeWindowInterval);
}
}
openTab();
}
const OnFailed = () => {
status.textContent = waitingStr;
lastRetry.textContent = `${new Date().toLocaleTimeString()}`;
retryCount.textContent = `${++retries}`;
setTimeout(TryDownload, timeout);
}
const TryDownload = () => Download(OnSuccess, OnFailed);
// btn.style.display = 'none';
block.style.display = 'block';
lastRetry.textContent = `${new Date().toLocaleTimeString()}`;
retryCount.textContent = `${retries}`;
status.textContent = waitingStr;
TryDownload();
}
function ButtonCallback (event) {
event.preventDefault(); // for debug
DisplayDownloading(event);
}
async function Run()
{
const category = GetCategory();
const target = await FetchTarget();
let link = await ParseDownloadLink(target);
link = link.replace(/\?n=/, `?n=[${category}]`)
console.log(link); // for debug!
const btnElement = `<a id="YrDownloadBtn" class="btn" style="width:130px;" target="_blank" rel="noreferrer noopener" href=${link}>直接下載</a>`;
const statusElement = `
<div id="YrStatusBlock" style="display: none;">
<div>重試次數: <span id="YrRetryCount"></span></div>
<div style="padding-bottom: 3px;">目前狀態: <span id="YrStatus" style="color: blueviolet; font-weight: bold; font-size: 1.5em;"></span></div>
<div>最後重試時間: <span id="YrLastRetry"></span></div>
</div>`;
const root = document.querySelector('.asTBcell.uwthumb');
root.insertAdjacentHTML('beforeend', btnElement);
root.insertAdjacentHTML('beforeend', statusElement);
const btn = document.querySelector('#YrDownloadBtn');
btn.addEventListener('click', ButtonCallback);
}
Run();