由于wnacg的直接下载通道无法使用，所以我想通过脚本请求每一张图片，之后打包保存。
// ==UserScript==
// @license MIT
// @name:en Pack to download-wnacg
// @name 打包下载wnacg的图片
// @namespace raincore
// @version 2.0.3
// @description 由于wnacg的直接下载通道无法使用，所以我想通过脚本请求每一张图片，之后打包保存。
// @description:en Try downloading the wnacg image as a package
// @author raincore
// @icon http://www.wnacg.com/favicon.ico
// @match *://*.wnacg.com/photos-index-*
// @match *://*.wnacg.wtf/photos-index-*
// @match *://*.wnacg.org/photos-index-*
// @match *://*.wnacg1.com/photos-index-*
// @match *://*.wnacg1.org/photos-index-*
// @match *://*.wnacg1.cc/photos-index-*
// @match *://*.hentaicomic.org/photos-index-*
// @match *://*.wnacg.fun/photos-index-*
// @match *://*.qy1.ru/photos-index-*
// @match *://*.qy0.ru/photos-index-*
// @match *://*.qy8.ru/photos-index-*
// @require https://cdn.staticfile.org/jquery/3.5.1/jquery.min.js
// @require https://cdn.staticfile.org/FileSaver.js/1.3.8/FileSaver.min.js
// @require https://cdn.staticfile.org/jszip/3.3.0/jszip.min.js
// @connect *
// @grant GM_xmlhttpRequest
// @grant unsafeWindow
// ==/UserScript==
(function () {
'use strict';
var a = document.createElement('a');
var tab = $('.uwthumb')[0];
a.className = "btn";
a.style = "width:130px;";
a.text = "打包下载";
a.onclick = onClick;
tab.append(a);
var is_downloading = false
let curWwwPath = window.document.location.href
var aid = curWwwPath.substring(curWwwPath.indexOf("aid") + 4, curWwwPath.lastIndexOf(".html"))
var title = $('#bodywrap h2').text()
var finished = 0
var erred = 0
var total = 0
function request(url,overridType) {
return new Promise((resolve, reject) => {
let request_config = {
url,
method: 'GET',
// headers: {
// "Cache-Control": "no-cache",
// referrer: referrerStr
// },
timeout: 100000,
onload: response => {
console.log(`fetch ${url} success`)
resolve(response);
},
onabort: response => {
reject(`abort:${url}`);
},
onerror: response => {
reject(`error:${url}`);
},
ontimeout: response => {
reject(`timeout:${url}`);
},
}
if (overridType){
request_config['overrideMimeType'] = 'text/plain; charset=x-user-defined'
}
GM_xmlhttpRequest(request_config);
})
}
function retry_request(url,overridType) {
return new Promise((resolve, reject) => {
request(url,overridType).then(resp => {
resolve(resp)
}).catch(e => {
console.log(e)
request(url).then(resp => {
resolve(resp)
}).catch(e => {
console.log(e)
request(url).then(resp => {
resolve(resp)
}).catch(e => {
console.log(e)
reject(`fetch ${url} failed`)
})
})
})
})
}
function getImgList(aid) {
return new Promise((resolve, reject) => {
retry_request("/photos-gallery-aid-" + aid + ".html",false).then(gallery_resp => {
let rawText = gallery_resp.response;
rawText = rawText.split('\n');
let raw = "";
for (let i = 2; i < rawText.length - 5; i++) {
rawText[i] = rawText[i].substring(18);
rawText[i] = rawText[i].substring(0, rawText[i].indexOf('");'));
rawText[i] = rawText[i].replace(/\\/g, "");
raw += rawText[i];
}
raw += 'imglist;'
let imglist = eval(raw);
imglist.splice(-1, 1)//去掉最后一个无用的图片
a.text = '列表加载成功!'
resolve(imglist)
}).catch(e => {
a.text = '列表加载失败!'
reject(e)
})
})
}
function get_img(img_url) {
return new Promise((resolve, reject) => {
retry_request(img_url,true).then(resp => {
let resp_text = resp.responseText;
let data = new Uint8Array(resp_text.length);
let i = 0;
while (i < resp_text.length) {
data[i] = resp_text.charCodeAt(i);
i++;
}
resp.type
let blob = new Blob([data], { type: `image/${getSuffix(img_url)}` });
resolve(blob)
}).catch(e => {
reject()
})
})
}
function onClick() {
if (!is_downloading) {
startDownload()
}
}
function prefixInteger(num, n) {
return (Array(n).join(0) + num).slice(-n);
}
function updateProgress() {
if (erred > 0) {
a.text = `正在下载:${finished}/${total},失败:${erred}`
} else {
a.text = `正在下载:${finished}/${total}`
}
}
function getSuffix(url){
let suffix = 'png'
let dot_index = url.lastIndexOf('.')
if (dot_index>0){
suffix = url.substring(dot_index+1)
}
return suffix
}
function startDownload() {
let zip = new JSZip()
let folder = zip.folder(title)
is_downloading = true
finished = 0
erred = 0
total = 0
a.text = '开始下载...'
getImgList(aid).then(imgList => {
total = imgList.length
updateProgress()
let promises = []
for (let i = 0; i < imgList.length; i++) {
let p = get_img(`https:${imgList[i].url}`)
let img_name = `${prefixInteger(i, 5)}.${getSuffix(imgList[i].url)}`
p.then(blob => {
folder.file(img_name, blob, { binary: true })
finished++
updateProgress()
}).catch(e => {
erred++
updateProgress()
})
promises.push(p)
}
Promise.all(promises).then(() => {
a.text = '下载完成，正在压缩...'
zip.generateAsync({ type: 'blob', base64: true },
metadata => {
a.text = "正在压缩:" + metadata.percent.toFixed(2) + " %";
})
.then(content => {
saveAs(content, `${title}.zip`)
if (erred > 0) {
a.text = `保存成功!其中失败${erred}个，点击重试`
} else {
a.text = '保存成功!'
}
})
}).catch(e => {
console.error(e)
a.text = `出现错误，点击重试`
})
}).finally(() => {
is_downloading = false
})
}
})();