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Add download button to Twitter image, and click to download the original image named by format.
// ==UserScript==
// @name TwitterImg Downloader
// @namespace TypeNANA
// @version 0.16
// @description Add download button to Twitter image, and click to download the original image named by format.
// @author HY
// @include *://twitter.com/*
// @include *://*.twitter.com/*
// @include *://x.com/*
// @include *://*.x.com/*
// @require http://code.jquery.com/jquery-3.3.1.min.js
// @grant none
// @license MIT
// ==/UserScript==
(function () {
/** Edit defaultFileName to change the file name format
*
* <%Userid> Twitter user ID. eg: shiratamacaron
* <%Tid> Tweet ID. eg: 1095705491429158912
* <%Time> Current timestamp. eg: 1550557810891
* <%PicName> Original pic name. eg: DzS6RkJUUAA_0LX
* <%PicNo> Ordinal number of pic. eg: 0
*
* default: "<%Userid> <%Tid>_p<%PicNo>"
* result: "shiratamacaron 1095705491429158912_p0.jpg"
*
* example1: "<%Userid> <%Tid> <%PicName>”
* result: "shiratamacaron 1095705491429158912 DzS6RkJUUAA_0LX.jpg"
*
* example2: "<%Tid>_p<%PicNo>”
* result: "1095705491429158912_p0.jpg"
*/
let defaultFileName = "<%Userid> <%Tid>_p<%PicNo>";
/** Edit following value to change download shortcut key in gallery mode
* KeyCode value can be found at https://keycode.info/
*
* default: shift + s (s->83)
*/
let shortCut_Shift = true; //true - Yes , false - No
let shortCut_Ctrl = false;
let shortCut_Alt = false;
let shortCut_KeyCode = 83 //KeyCode value
function download(url, name, view) {
//通过fetch获取blob
fetch(url).then(response => {
if (response.status == 200)
return response.blob();
throw new Error(`status: ${response.status}.`)
}).then(blob => {
downloadFile(name, blob, view)
}).catch(error => {
console.log("failed. cause:", error)
})
}
function downloadFile(fileName, blob, view) {
//通过a标签的download属性来下载指定文件名的文件
let anchor = view;
let src = URL.createObjectURL(blob);
anchor.download = fileName;
anchor.href = src;
view.click();
}
const addDownloadButton = function (v) {
newVer(v);
return false;
}
const setEditMargin = function (v) {
var vClass = v[0].parentElement.parentElement.className;
let vCss = `[class="` + vClass + `"] {margin-right: 35px !important;}`;
const style = document.createElement('style');
style.textContent = vCss;
document.head.appendChild(style);
return false;
}
function addDlBtn(){
let btnDownloadImg;
if(document.getElementsByClassName("img-link").length==0){
btnDownloadImg = document.createElement('A');
btnDownloadImg.className = 'img-link';
document.getElementById("react-root").appendChild(btnDownloadImg);
}else{
btnDownloadImg = document.getElementsByClassName("img-link")[0];
}
return btnDownloadImg;
}
function newVer(v) {
if (v == null || v.length == 0) return;
let target = v[0];
if (target == null || target.src == null) return;
if (target.alt == null || target.alt == "") return;
if (target.parentElement.getAttribute("aria-label") == null || target.parentElement.getAttribute("aria-label") == "") return;
let dlbtn = document.createElement('DIV');
target.parentElement.parentElement.appendChild(dlbtn);
dlbtn.outerHTML = '<div class="dl_btn_div" style="cursor: pointer;z-index: 999;display: table;font-size: 15px;color: white;position: absolute;right: 12px;bottom: 12px;backdrop-filter: blur(4px); background-color: rgba(15, 20, 25, 0.75);height: 32px;width: 32px;border-radius: 16px;text-align: center;"><svg class="icon" style="width: 16px;height: 16px;vertical-align: top;display: inline-block;margin-top: 8px;fill: currentColor;overflow: hidden;" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="3658"><path d="M925.248 356.928l-258.176-258.176a64 64 0 0 0-45.248-18.752H144a64 64 0 0 0-64 64v736a64 64 0 0 0 64 64h736a64 64 0 0 0 64-64V402.176a64 64 0 0 0-18.752-45.248zM288 144h192V256H288V144z m448 736H288V736h448v144z m144 0H800V704a32 32 0 0 0-32-32H256a32 32 0 0 0-32 32v176H144v-736H224V288a32 32 0 0 0 32 32h256a32 32 0 0 0 32-32V144h77.824l258.176 258.176V880z" p-id="3659"></path></svg></div>';
dlbtn = target.parentElement.parentElement.getElementsByClassName("dl_btn_div")[0];
let btnDownloadImg = addDlBtn();
let urlregex = /https\:\/\/(twitter|x).com\//;
if (!document.location.href.includes("photo")) {
//信息流模式
let firstA = findFirstA(target);
//获取文件名
// https://pbs.twimg.com/media/D_mR-WEUYAAZJVH?format=jpg&name=360x360
let fooName = target.src.split("?")[0];
let barName = fooName.split("/");
let dl_picname = barName[barName.length - 1];
let dl_time = new Date().getTime();
//获取图片编号
// ameto_y/status/1151067160078274561/photo/1
let array = firstA.href.replace(urlregex, "").split("/");
let dl_userid = array[0];
let dl_tid = array[2];
let dl_picno = array[4];
//替换内容，拼接文件名
let dl_filename = defaultFileName
.replace("<%Userid>", dl_userid)
.replace("<%Tid>", dl_tid)
.replace("<%Time>", dl_time)
.replace("<%PicName>", dl_picname)
.replace("<%PicNo>", dl_picno - 1);
//获取拓展名，推特只存在.jpg和.png格式的图片，故偷个懒不做正则判断
let dl_ext = "jpg";
if (target.src.includes("format=png")) {
dl_ext = "png";
}
dlbtn.addEventListener('touchstart', function (e) {
dlbtn.onclick = function (e) {
return false;
}
return false;
});
dlbtn.addEventListener('mousedown', function (e) {
dlbtn.onclick = function (e) {
return false;
}
return false;
});
dlbtn.addEventListener('click', function (e) {
//调用下载方法
cancelBubble(e);
download("https://pbs.twimg.com/media/" + dl_picname + "?format=" + dl_ext + "&name=orig", dl_filename + "." + dl_ext, btnDownloadImg);
return false;
});
} else {
//大图画廊模式
//获取文件名
// https://pbs.twimg.com/media/D_mR-WEUYAAZJVH?format=jpg&name=360x360
let fooName = target.src.split("?")[0];
let barName = fooName.split("/");
let dl_picname = barName[barName.length - 1];
//获取拓展名，推特只存在.jpg和.png格式的图片，故偷个懒不做正则判断
let dl_ext = "jpg";
if (target.src.includes("format=png")) {
dl_ext = "png";
}
dlbtn.addEventListener('click', function (e) {
//调用下载方法
cancelBubble(e);
//获取图片编号
// ameto_y/status/1151067160078274561/photo/1
let array = document.location.href.replace(urlregex, "").split("/");
let dl_userid = array[0];
let dl_tid = array[2];
let dl_picno = array[4];
let dl_time = new Date().getTime();
let dl_filename = defaultFileName
.replace("<%Userid>", dl_userid)
.replace("<%Tid>", dl_tid)
.replace("<%Time>", dl_time)
.replace("<%PicName>", dl_picname)
.replace("<%PicNo>", dl_picno - 1);
download("https://pbs.twimg.com/media/" + dl_picname + "?format=" + dl_ext + "&name=orig", dl_filename + "." + dl_ext, btnDownloadImg);
return false;
});
}
}
//画廊模式下的快捷键功能
function onShortCut() {
let locationArr = document.location.href.split("/");
let targetArr = $('ul[role="list"]');
let imgNo = null;
let imgArr = null;
let target = null;
//判断是否找到了画廊的ul标签
if (targetArr.length == 0 ) {
//如果找不到ul标签，并且不是画廊模式（那么网址内没有“photo”）， 则不进行进一步的处理
if(locationArr.length < 2 || locationArr[locationArr.length - 2] != "photo") return;
//否则进行搜索单张图画廊的情况
var arr = $('img[src^="https://pbs.twimg.com/media/');
for(var i=0;i< arr.length;i++){
var imgUrl = arr[i].src.split("?")[i]
//判断是否是推特附带的图片img，并且判断是不是信息流的图片（信息流图片的所有母层中必定带有一个a标签）
if(arr[i].parentElement.firstElementChild!="" && arr[i].parentElement.firstElementChild.style.backgroundImage.includes(imgUrl) && findFirstA(arr[i])==null){
//单图模式的赋值
let imgNo = 0;
target = arr[i];
break;
}
}
//如果找不到任何目标，则不进行进一步的处理
if(target == null) return;
} else {
//多图模式的赋值
imgNo = locationArr[locationArr.length - 1] - 1;
imgArr = targetArr[0].getElementsByTagName("img");
target = imgArr[imgNo];
}
//获取文件名
// https://pbs.twimg.com/media/D_mR-WEUYAAZJVH?format=jpg&name=360x360
let fooName = target.src.split("?")[0];
let barName = fooName.split("/");
let dl_picname = barName[barName.length - 1];
//获取拓展名，推特只存在.jpg和.png格式的图片，故偷个懒不做正则判断
let dl_ext = "jpg";
if (target.src.includes("format=png")) {
dl_ext = "png";
}
//获取图片编号
// ameto_y/status/1151067160078274561/photo/1
let urlregex = /https\:\/\/(twitter|x).com\//;
let array = document.location.href.replace(urlregex, "").split("/");
let dl_userid = array[0];
let dl_tid = array[2];
let dl_picno = array[4];
let dl_time = new Date().getTime();
let dl_filename = defaultFileName
.replace("<%Userid>", dl_userid)
.replace("<%Tid>", dl_tid)
.replace("<%Time>", dl_time)
.replace("<%PicName>", dl_picname)
.replace("<%PicNo>", dl_picno - 1);
let btnDownloadImg = addDlBtn();
download("https://pbs.twimg.com/media/" + dl_picname + "?format=" + dl_ext + "&name=orig", dl_filename + "." + dl_ext, btnDownloadImg);
}
waitForKeyElements(
'img[src^="https://pbs.twimg.com/media/"]',
addDownloadButton
);
waitForKeyElements(
'a[href^="/i/imagine?postId=',
setEditMargin,
true
);
$(document).keyup(function (e) {
let shiftFlag = true
let ctrlFlag = true
let altFlag = true
if (shortCut_Shift) {
shiftFlag = e.shiftKey
}
if (shortCut_Ctrl) {
ctrlFlag = e.ctrlKey
}
if (shortCut_Alt) {
altFlag = e.altKey
}
if (e.keyCode == shortCut_KeyCode && shiftFlag && ctrlFlag && altFlag) {
onShortCut()
}
})
function waitForKeyElements(
selectorTxt,
actionFunction,
bWaitOnce,
iframeSelector
) {
var targetNodes, btargetsFound;
if (typeof iframeSelector == "undefined") {
targetNodes = $(selectorTxt);
} else {
targetNodes = $(iframeSelector).contents().find(selectorTxt);
}
if (targetNodes && targetNodes.length > 0) {
btargetsFound = true;
targetNodes.each(function () {
var jThis = $(this);
var alreadyFound = jThis.data('alreadyFound') || false;
if (!alreadyFound) {
var cancelFound = actionFunction(jThis);
if (cancelFound) {
btargetsFound = false;
} else {
jThis.data('alreadyFound', true);
}
}
});
} else {
btargetsFound = false;
}
var controlObj = waitForKeyElements.controlObj || {};
var controlKey = selectorTxt.replace(/[^\w]/g, "_");
var timeControl = controlObj[controlKey];
if (btargetsFound && bWaitOnce && timeControl) {
clearInterval(timeControl);
delete controlObj[controlKey]
} else {
if (!timeControl) {
timeControl = setInterval(function () {
waitForKeyElements(selectorTxt,
actionFunction,
bWaitOnce,
iframeSelector
);
}, 300);
controlObj[controlKey] = timeControl;
}
}
waitForKeyElements.controlObj = controlObj;
}
function findFirstA(node) {
var tmp = node;
for (var i = 0; i < 20; i++) {
tmp = tmp.parentElement
if (tmp == null) return null;
if (tmp.nodeName == "a" || tmp.nodeName == "A") {
return tmp
}
}
}
function findFirstLi(node) {
var tmp = node;
for (var i = 0; i < 20; i++) {
tmp = tmp.parentElement
if (tmp == null) return null;
if (tmp.nodeName == "li" || tmp.nodeName == "LI") {
return tmp
}
}
}
function cancelBubble(e) {
var evt = e ? e : window.event;
if (evt.stopPropagation) {
evt.stopPropagation();
} else {
evt.cancelBubble = true;
}
}
})();