一键下载一条微博中的图片，文件名包含该微博的路径．xxx_wb_uid_wid，可恢复为 https://weibo.com/uid/wid
// ==UserScript==
// @name 下载微博图片和视频
// @name:en Download Weibo Images and Video
// @namespace https://gf.qytechs.cn/zh-CN/users/127123-flao
// @version 1.5.2
// @description 一键下载一条微博中的图片，文件名包含该微博的路径．xxx_wb_uid_wid，可恢复为 https://weibo.com/uid/wid
// @description:en Download images from weibo with user-id and weibo-id in its filename. filname format xxx_wb_uid_wid
// @author Flao
// @match https://weibo.com/*
// @match https://www.weibo.com/*
// @grant none
// @license MIT License
// @run-at document-end
// @connect *://*.sinaimg.cn
// ==/UserScript==
(function() {
var doDownload = function(blob, filename) {
var a = document.createElement('a');
a.download = filename;
a.href = blob;
a.click();
}
// Current blob size limit is around 500MB for browsers
var download = function (url, filename) {
if (!filename) filename = url.split('\\').pop().split('/').pop();
fetch(url, {
headers: new Headers({
'Origin': location.origin
}),
mode: 'cors'
})
.then(response => response.blob())
.then(blob => {
let blobUrl = window.URL.createObjectURL(blob);
doDownload(blobUrl, filename);
})
.catch(e => {console.error(e); return false;});
return true;
}
var toast = function(text, duration) {
if(isNaN(duration)) duration = 1500;
let _toast = document.createElement('div');
_toast.innerText = text;
_toast.style.cssText = 'width: 60%; height:50px; line-height: 50px; min-width:100px;text-align: center; font-size: 15px;' +
'position: fixed; top: 60%; left: 40%; background: rgb(0,0,0); color:rgb(255,255,255); opacity:0.75; z-index: 999';
document.body.children[0].appendChild(_toast);
_toast.style.transition = 'all 0.7s';
_toast.style.webkitTransition = 'all 0.7s';
setTimeout(function() {
_toast.style.opacity = 0;
setTimeout(()=> { document.body.children[0].removeChild(_toast);},700);
}, duration);
}
// global variables
var globalValue = "";
var inputBoxDict = new Map();
var proceedList = new WeakSet();
var imgPathReg = new RegExp("(https://[\\S]+/)([\\S]+)(/[\\S]+)");
var buttonOnClick = function(e) {
let buttonData = inputBoxDict.get(this); // path
let inputName = this.previousSibling.value && this.previousSibling.value.split('@')[0];
let fileName = (inputName && inputName + '_') + 'wb_' + buttonData[0] + '_' + buttonData[1];
var imgList = this.parentNode.parentNode.getElementsByClassName('media_box')[0].children[0].children; // media_box > ul >li
// set the page mask
let pages = this.previousSibling.value.split('@')[1];
let temp = /[0-9]*/.exec(pages);
pages = temp && temp[0];
let mask = new Uint8Array(imgList.length);
if(!pages){
mask.fill(1);
}
else {
console.log(pages, '_', pages.length);
for(var i = 0; i < pages.length; i++) {
let num = pages[i] - 1;
if(num > mask.length || num < 0) continue;
mask[num] = 1;
}
}
console.log(mask);
// check if the media is video
let firstMediaClass = imgList[0].classList[0];
if(firstMediaClass === 'WB_video') {
let videoElem = imgList[0].getElementsByTagName('video')[0];
let result = download(videoElem.src, fileName);
if(result === false) {toast('下载出错，详见控制台');}
else {toast('下载开始');}
return;
}
// else download images
var failedList = [];
for(var j = 0; j < imgList.length; j++) {
if(mask[j] === 0) continue;
let result = true;
let child = imgList[j].children[0];
var imgsrc = '';
// check whether picture or gif
if(child.tagName === 'IMG') {
imgsrc = child.src.replace(imgPathReg,'$1large$3'); // replace ....sinaming.cn/XXX/YYY.jpg' with '...sinaimg.cn/large/YYY.jpg'
result = download(imgsrc, fileName + '_' + j);
}
else {
imgsrc = child.children[0].src.replace(imgPathReg, '$1large$3');
result = download(imgsrc, fileName + '_' + j + '.gif');
}
if(result === false) failedList.push(j+1);
}
if(failedList.length !== 0) {
toast('第 ' + failedList + ' 下失败，详见控制台');
}
else {
toast('全部下载开始');
}
}
var getWeiboPath = function(media_box) {
var path = "";
if(media_box.parentNode.nextElementSibling &&
media_box.parentNode.nextElementSibling.classList.contains('WB_func')) {
path = media_box.parentNode.nextElementSibling.children[0].children[0].children[0].children[0].children[0].href;
// let date = media_box.parentNode.nextElementSibling.children[0].children[0].children[0].children[0].children[0].title;
path = path.split("?")[0].split("/").slice(3,5);
}
else {
path = media_box.parentNode.parentNode.children[1].children[0].href; // in an independent weibo page
//let date = media_box.parentNode.parentNode.children[1].children[0].title;
path = path.split("?")[0].split("/").slice(3,5);
}
return path;
}
var addFunction = function(){
var lists = document.getElementsByClassName('media_box');
console.log('media_box list.length = ' + lists.length);
for( var i = 0; i < lists.length; i++) {
var list = lists[i].parentNode.parentNode.children[1];
if(proceedList.has(list)) {
continue;
}
proceedList.add(list);
var inputBox = document.createElement('input');
inputBox.style.width = '20%';
inputBox.style.height = '70%';
inputBox.style.float = "right";
inputBox.style.marginLeft = '5px';
inputBox.style.opacity = "0.2";
var button = document.createElement('a');
button.setAttribute('class','S_txt2');
button.innerText = '下载图片';
button.href = 'javascript:void(0)';
button.input = inputBox;
var path = getWeiboPath(lists[i]);
button.onclick = buttonOnClick;
button.style.float = "right";
inputBoxDict.set(button,path);
list.appendChild(inputBox);
list.appendChild(button);
}
}
window.addEventListener ("load", ()=>{
setTimeout(addFunction,1000);
});
(function () {
var DOMObserverTimer = false;
var DOMObserverConfig = {
attributes: true,
childList: true,
subtree: true
};
var DOMObserver = new MutationObserver(function () {
if (DOMObserverTimer !== 'false') {
clearTimeout(DOMObserverTimer);
}
DOMObserverTimer = setTimeout(function () {
DOMObserver.disconnect();
addFunction();
DOMObserver.observe(document.body, DOMObserverConfig);
}, 1000);
});
DOMObserver.observe(document.body, DOMObserverConfig);
}) ();
})();
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