可以免费下载网易云音乐上的歌曲
// ==UserScript==
// @name 网易云音乐免费下载
// @namespace http://tampermonkey.net/
// @version 1.1
// @description 可以免费下载网易云音乐上的歌曲
// @author remramEMT
// @match https://music.163.com/
// @icon https://s1.music.126.net/style/favicon.ico?v20180823
// @grant none
// @license none
// ==/UserScript==
(function () {
//等待网页加载时间单位：秒（ms）,网络慢可以设置长一点
const time = 1500;
//从本地读取默认下载音质,没保存有就默认为standard
let defaultDownloadLevel = localStorage.getItem('defaultDownloadLevel') || 'standard';
console.log('当前选择音质：' + defaultDownloadLevel);
//创建侧边显示栏
const box = document.createElement('div');
box.style.width = '210px';
box.style.top = '450px';
box.style.position = 'fixed';//固定位置
box.style.zIndex = '9999'; // 显示在最上层
// 将侧边显示栏添加到页面上
document.body.appendChild(box);
var type_id;
//创建音质选择按钮
function createSelectElement(downloadButton) {
//创建一个select
const selectElement = document.createElement('select');
//音质选择按钮css样式
selectElement.style.verticalAlign = 'middle';
selectElement.style.width = 'auto';
selectElement.style.height = 'auto';
selectElement.style.display = 'inline-block';
selectElement.style.backgroundColor = 'rgb(220, 30, 30)';
selectElement.style.color = 'white';
selectElement.style.width = '80px';
selectElement.style.height = '31px';
selectElement.style.border = 'none';
selectElement.style.outline = 'none';
selectElement.style.borderRadius = '0 4px 4px 0';
//select添加选项
selectElement.innerHTML = `<option value="standard">标准</option>
<option value="higher">较高</option>
<option value="exhigh">极高</option>
<option value="lossless">无损</option>
<option value="hires">Hi-Res</option>
<option value="jyeffect">高清环绕声</option>
<option value="sky">沉浸环绕声</option>
<option value="jymaster">超清母带</option>`;
//添加选项改变事件
selectElement.addEventListener('change', function () {
//更改下载音质
defaultDownloadLevel = this.value;
//将更改选项保存到本地
localStorage.setItem('defaultDownloadLevel', defaultDownloadLevel);
console.log('当前选择音质：' + defaultDownloadLevel);
//下载按钮恢复为可点击状态
downloadButton.disabled = false;
downloadButton.style.backgroundColor = 'rgb(220, 30, 30)';
});
// select设置为默认下载音质选项
selectElement.value = defaultDownloadLevel;
return selectElement;
}
// 创建下载按钮
function createDownloadButton() {
// 创建下载按钮
const downloadButton = document.createElement('button');
// 下载按钮css样式
downloadButton.title = '下载音乐';
downloadButton.textContent = '免费下载';
downloadButton.style.height = '31px';
downloadButton.style.width = '59px';
downloadButton.style.backgroundColor = 'rgb(220, 30, 30)';
downloadButton.style.color = '#FFF'
downloadButton.style.borderRadius = '4px 0 0 4px';
//downloadButton.style.marginLeft = '44px';
downloadButton.style.borderRight='2px solid rgb(176, 24, 24)';
downloadButton.style.verticalAlign = 'middle';
// 下载按钮添加点击事件
downloadButton.onclick = function () {
//设置为不可点击状态
downloadButton.disabled = true;
downloadButton.style.backgroundColor = '#EEE';
//获取文件名
const fileName = getSinger_SongTitle();
console.log(`尝试下载:${fileName}`);
//获取下载链接
fetch(`https://csm.sayqz.com/api/?type=apiSongUrlV1&id=${type_id.id}&level=${defaultDownloadLevel}`)
.then(response => response.text())
.then(html => {
//提取下载链接
const downloadUrl = JSON.parse(html).data[0].url;
//提取文件类型
const type = JSON.parse(html).data[0].type;
//显示下载提示
const div = downloadInfoDisplay(`${fileName}.${type}`);
fetch(downloadUrl)
//下载，生成blob对象
.then(response => response.blob())
.then(blob => {
var url = URL.createObjectURL(blob);
var a = document.createElement('a');
a.href = url;
//保存到硬盘（歌手 - 歌曲名.类型）
a.download = `${fileName}.${type}`;
a.click();
//取消下载提示
div.parentNode.removeChild(div);
})
.catch(error => console.error('Error:', error));
})
.catch(error => console.error('Error:', error));
};
return downloadButton;
}
//获取文件名（歌手 - 歌曲名）
function getSinger_SongTitle() {
// 切换到iframe
const iframeDocument = getiframe();
// 在iframe中查找元素
//获取歌手信息标签
const singerElement = iframeDocument.evaluate("/html/body/div[3]/div[1]/div/div/div[1]/div[1]/div[2]/p[1]/span", iframeDocument, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
//获取歌曲名信息标签
const SongTitleElement = iframeDocument.evaluate("/html/body/div[3]/div[1]/div/div/div[1]/div[1]/div[2]/div[1]/div/em", iframeDocument, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
//格式化歌手信息(去除' / ')
const singer = singerElement.innerText.replace(/ \/ /g, ' ');
//格式化歌曲名(去除' / ')
const SongTitle = SongTitleElement.innerText.replace(/ \/ /g, ' ');
//定义文件名（歌手 - 歌曲名）
const fileName = `${singer} - ${SongTitle}`;
return fileName;
}
//显示下载提示
function downloadInfoDisplay(fileName_type) {
//创建一个下载信息显示框
const div = document.createElement('div');
div.textContent = `正在下载${fileName_type}`;
div.style.float = 'left';
div.style.marginTop = `10px`;
div.style.backgroundColor = 'rgba(0, 0, 0, 0.2)';
div.style.color = '#FFF';
div.style.borderRadius = '4px';
// 将下载信息显示框添加到侧边显示栏
box.appendChild(div);
return div;
}
// 获取iframe
function getiframe() {
const iframe = document.getElementById('g_iframe');
return iframe.contentDocument || iframe.contentWindow.document;
}
//获取id和URL类型
function getTypeIdFromURL(url) {
const hash = new URL(url).hash;
//分割URL类型和id
type_id = hash.split('id=');
return {
id: type_id[1],
type: type_id[0]
};
}
//显示下载按钮
function downloadButton_is_Display() {
//获取id和URL类型
type_id = getTypeIdFromURL(window.location.href);
//判断URL类型是否为音乐链接
if (type_id.type === '#/song?') {
//等待{time}毫秒网页加载
setTimeout(function () {
// 获取iframe
const iframeDocument = getiframe();
//获取按钮栏
const divElement = iframeDocument.evaluate("/html/body/div[3]/div[1]/div/div/div[1]/div[1]/div[2]/div[2]/div", iframeDocument, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
//获取原下载按钮
const originalDownloadButton = divElement.querySelector('[data-res-action="download"]');
//获取评论按钮
const commentElement = originalDownloadButton.nextElementSibling;
//删除原来的下载按钮
originalDownloadButton.parentNode.removeChild(originalDownloadButton);
//删除评论按钮
commentElement.parentNode.removeChild(commentElement);
//生成一个新下载按钮
const downloadButton = createDownloadButton();
//生成一个音质选择按钮
const selectElement = createSelectElement(downloadButton);
// 将生成的按钮添加到按钮栏上
divElement.appendChild(downloadButton);
divElement.appendChild(selectElement);
}, time)
}
}
//浏览器地址栏更变，判断是否显示下载按钮
window.onhashchange = function () {
downloadButton_is_Display();
};
downloadButton_is_Display();
})();