歌曲封面下载,优化网易云音乐歌曲歌词下载
// ==UserScript==
// @name 网易云音乐歌曲封面下载
// @namespace 网易云音乐歌曲封面下载
// @version 0.8
// @description 歌曲封面下载,优化网易云音乐歌曲歌词下载
// @author opentdoor
// @match http://music.163.com/*
// @match https://music.163.com/*
// @grant GM_xmlhttpRequest
// @connect *
// ==/UserScript==
(function(root) {
'use strict';
function Downloader() {
// request
function FileRequest(url, progress, callback) {
var req = GM_xmlhttpRequest({
method: 'GET',
url: url,
onprogress: function (res) {
if (progress) progress(res);
},
overrideMimeType: "text/plain;charset=x-user-defined",
onreadystatechange: function (res) {
if (res.readyState == 4) {
if (res.status == 200) {
var str = res.response;
var ta1 = [];
for (var i = 0; i < str.length; i++) {
ta1[i] = str.charCodeAt(i) & 0x00ff;
}
var ua8 = new Uint8Array(ta1);
var blob = new Blob([ua8]);
callback(blob, res.status);
} else {
callback(null, res.status);
}
}
}
});
};
//save file
function SaveFile(blob, filename) {
if (root.navigator.msSaveBlob) {
root.navigator.msSaveBlob(blob, filename);
} else {
var anchor = root.document.createElement('a');
var url = root.URL.createObjectURL(blob);
anchor.download = filename;
anchor.href = url;
var evt = root.document.createEvent("MouseEvents");
evt.initEvent("click", true, true);
anchor.dispatchEvent(evt);
root.URL.revokeObjectURL(url);
}
}
//interface
function FileDownload(url, filename, downloading, success, error) {
FileRequest(url, downloading, function (blob, status) {
if (status == 200) {
SaveFile(blob, filename);
if (typeof success == 'function') success();
} else {
if (typeof error == 'function') error(status);
}
});
}
this.FileDownload = FileDownload;
var anthorEvents = {
onprogress: function (res) {
console.log(res);
if (res.lengthComputable) {
this.anchor.innerHTML = `下载:${(res.loaded*100 / res.total).toFixed(2)}%`;
} else {
this.anchor.innerHTML = "下载:" + anthorEvents.calcLength(res.loaded);
}
},
calcLength: function (b) {
b = Number(b) / 1024;
if (b < 1024) {
return b.toFixed(1) + "KB";
}
b = b / 1024;
if (b < 1024) {
return b.toFixed(2) + "MB";
}
b = b / 1024;
return b.toFixed(3) + "GB";
},
onsuccess: function () {
this.anchor.innerHTML = this.Html;
this.doing = false;
},
onerror: function () {
this.anchor.innerHTML = "下载失败";
this.handler = setTimeout(function (t) {
t.anchor.innerHTML = t.Html;
t.doing = false;
}, 2000, this);
},
onAnthorClick: function (e) {
e = e || event;
var a = this.anchor;
var ex = /([\w\s]+)(\.\w)(\?.*)?$/i.exec(a.href || "");
var name = a.download || a.title;
if (ex) {
if (!name && ex.length > 1) name = ex[1];
if (name && name.indexOf('.') == -1 && ex.length > 2) name += ex[2];
}
if (!name || !a.href) return;
e.preventDefault();
if (this.doing) return;
this.doing = true;
FileDownload(a.href, name, anthorEvents.onprogress.bind(this), anthorEvents.onsuccess.bind(this), anthorEvents.onerror.bind(this));
}
};
//interface
function BindAnthor(a) {
var env = { Html: a.innerHTML, anchor: a };
a.addEventListener('click', anthorEvents.onAnthorClick.bind(env), true);
}
this.BindAnthor = BindAnthor;
}
//main
var ggx=function(){
var ww=document.getElementById("g_iframe").contentWindow;
var do2=ww.document;
var aa=do2.querySelector("a[data-action='outchain']");
var info=do2.querySelectorAll("div.cnt .s-fc4 .s-fc7");
console.log(info);
var name=do2.querySelector(".f-ff2")&&info&&info.length>1?do2.querySelector(".f-ff2").innerText+"-"+info[0].innerText+"-"+info[1].innerText:document.title.replace(/\-.*$/i,'');
var dl=new Downloader();
if(aa){
var a=do2.createElement('a');
a.href= do2.querySelector(".j-img").dataset["src"];
a.download=name+'.jpg';
a.innerHTML='封面下载';
a.classList.add("des");
a.classList.add("s-fc7");
var br=do2.createElement("br");
var tgxz=do2.querySelector('.cnt .desc');
if(tgxz&&tgxz.childNodes[0]&&tgxz.childNodes[0].textContent=="下载："){
var lastA=tgxz.querySelector("a:last-of-type");
if(lastA&&(lastA.innerHTML||"").indexOf("封面")>-1){
tgxz.removeChild(lastA);
a.innerHTML='封面';
if(aa.parentElement.querySelector('a:last-of-type').innerHTML=='封面下载')
aa.parentElement.removeChild(aa.parentElement.querySelector('a:last-of-type'));
}
tgxz.appendChild(a);
dl.BindAnthor(a);
}
else
{
if(aa.parentElement.querySelector('a:last-of-type').innerHTML=='封面下载')
aa.parentElement.removeChild(aa.parentElement.querySelector('a:last-of-type'));
else aa.parentElement.appendChild(br);
aa.parentElement.appendChild(a);
dl.BindAnthor(a);
}
}else{
return;
}
//优化歌曲歌词下载
do2.querySelector("div.cnt").addEventListener('mouseenter',function(e){
if(e.target.tagName=="A"&&e.target.target=='_blank'&&!e.target.nnbk)
{
e.target.nnbk=true;
var regx=/(\.mp3|\.flac|\.ape|\.mp4)(\?.*)?$/i;
var mh=regx.exec(e.target.href);
if(mh&&mh.length)
{ e.target.download=name+mh[1];
dl.BindAnthor(e.target);
}
if(/^data\:text\/plain/i.test(e.target.href)) e.target.download=name+".lrc";
}
},true);
};
var ggx2=function(){ setTimeout(ggx,50);setTimeout(ggx,2000); };
if(document.getElementById("g_iframe")) document.getElementById("g_iframe").addEventListener('load',ggx2,false);
})(window);