Add download button to Fanbox image, and click to download the original image named by format.
// ==UserScript==
// @name Fanbox Image Downloader
// @namespace TypeNANA
// @version 0.5
// @description Add download button to Fanbox image, and click to download the original image named by format.
// @author HY
// @match *.fanbox.cc/*
// @include *.fanbox.cc/*
// @require http://code.jquery.com/jquery-3.3.1.min.js
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function () {
/** Edit defaultFileName to change the file name format
*
* <%Userid> Fanbox user ID. eg: shiratamaco
* <%Postid> Fanbox post ID. eg: 1459770
* <%Time> Current timestamp. eg: 1550557810891
* <%PicName> Original pic name. eg: 6tpWcFZjqFmc1faOs4TraugL
* <%PicNo> Ordinal number of pic. eg: 0
*
* default: "fanbox <%Userid> <%Postid>_p<%PicNo>"
* result: "fanbox shiratamaco 1459770_p0.jpg"
*
* example1: "<%Userid> <%Postid> <%PicName>”
* result: "shiratamaco 1459770 6tpWcFZjqFmc1faOs4TraugL.jpg"
*
* example2: "<%Postid>_p<%PicNo>”
* result: "1459770_p0.jpg"
*/
let defaultFileName = "fanbox <%Userid> <%Postid>_p<%PicNo>";
function download(url, name) {
GM_xmlhttpRequest({
method: "GET",
url: url,
binary: true,
responseType: "blob",
onload: function (response) {
downloadFile(name, response.response)
},
onerror: function (e) {
console.log("failed. cause:", e)
},
});
}
function downloadFile(fileName, blob) {
//通过a标签的download属性来下载指定文件名的文件
let anchor = getDlBtn();
let src = URL.createObjectURL(blob);
anchor.download = fileName;
anchor.href = src;
anchor.click();
}
function getDlBtn() {
if (document.getElementsByClassName("img-link").length == 0) {
let btnDownloadImg = document.createElement('A');
btnDownloadImg.className = 'img-link';
document.getElementById("root").appendChild(btnDownloadImg);
}
return document.getElementsByClassName("img-link")[0];
}
function setBtn(v, index) {
if (v == null || v.length == 0) return;
let target = v[0];
if (target == null) return;
if (target.parentElement.getElementsByClassName("dl_btn_div").length > 0) return;
if (target.getElementsByTagName("img").length <= 0 && target.getElementsByTagName("img")[0].src == null) return;
let pageUrl = document.location.href.split("?")[0];
let picUrl = target.href;
let dlbtn = document.createElement('DIV');
target.parentElement.appendChild(dlbtn);
dlbtn.outerHTML = '<div class="dl_btn_div" style="cursor: pointer;display: table;font-size: 15px;color: white;position: absolute;right: 5px;bottom: 5px;background: #0000007f;height: 30px;width: 30px;border-radius: 15px;text-align: center;"><svg class="icon" style="width: 15px;height: 15px;vertical-align: top;display: inline-block;margin-top: 7px;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.getElementsByClassName("dl_btn_div")[0]
//获取文件名
// https://downloads.fanbox.cc/images/post/1459770/6tpWcFZjqFmc1faOs4TraugL.png
let nameArr = picUrl.split("/");
let picName = nameArr[nameArr.length - 1];
let dl_picname = picName.split(".")[0];
let dl_time = new Date().getTime();
//获取图片编号
// https://www.fanbox.cc/@shiratamaco/posts/1459770
let dl_userid;
if(pageUrl.includes("@")){
dl_userid = pageUrl.split("@")[1].split("/")[0];
}else{
dl_userid = pageUrl.split("://")[1].split(".")[0];
}
let dl_tid = pageUrl.split("/")[pageUrl.split("/").length - 1];
let dl_picno = index;
//替换内容，拼接文件名
let dl_filename = defaultFileName
.replace("<%Userid>", dl_userid)
.replace("<%Postid>", dl_tid)
.replace("<%Time>", dl_time)
.replace("<%PicName>", dl_picname)
.replace("<%PicNo>", dl_picno);
//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 = picUrl.split(".")[picUrl.split(".").length - 1];
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(picUrl, dl_filename + "." + dl_ext);
return false;
});
return false;
}
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;
}
}
function waitForKeyElements(
selectorTxt,
actionFunction,
bWaitOnce
) {
var targetNodes, btargetsFound;
targetNodes = $(selectorTxt);
if (targetNodes && targetNodes.length > 0) {
btargetsFound = true;
targetNodes.each(function (i, v) {
var jThis = $(this);
var alreadyFound = jThis.data('alreadyFound') || false;
if (!alreadyFound) {
var cancelFound = actionFunction(jThis, i);
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
);
}, 300);
controlObj[controlKey] = timeControl;
}
}
waitForKeyElements.controlObj = controlObj;
}
waitForKeyElements('article a[href^="https://downloads.fanbox.cc/images/post"]', setBtn);
})();