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一键下载当前页面所有录音文件，显示下载失败的文件，显示整个网页的爬取状况
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// ==UserScript==
// @name JS 下载云听电台往期音频
// @namespace https://www.radio.cn/
// @version 1.71
// @description 一键下载当前页面所有录音文件，显示下载失败的文件，显示整个网页的爬取状况
// @match https://www.radio.cn/*
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
function formatDate(dateStr) {
const date = new Date(dateStr);
const year = date.getFullYear();
const month = date.getMonth() + 1;
const day = date.getDate();
return year + '-' + (month < 10 ? '0' : '') + month + '-' + (day < 10 ? '0' : '') + day;
}
function downloadAll() {
const downloadLinks = [];
for (const a of document.getElementsByTagName('a')) {
if (!a.hasAttribute('onclick')) continue;
const onclick = a.getAttribute('onclick');
const matches = onclick.match(/downLiveRecord\(['"](.*?)['"]/);
if (matches) {
let href = matches[1].replace(/\[|\]|"/g, '');
const dateMatch = href.match(/\/(\d{4})(\d{2})(\d{2})\//);
if (dateMatch) {
const dateStr = dateMatch[1] + '-' + dateMatch[2] + '-' + dateMatch[3];
const fileName = formatDate(dateStr) + '.mp3';
if (href.startsWith('https://')) {
downloadLinks.push({href: href, fileName: fileName});
} else {
href = 'https://' + href.replace(/^http:\/\//i, '');
downloadLinks.push({href: href, fileName: fileName});
}
}
}
}
downloadLinks.sort(function(a, b){
return a.fileName.localeCompare(b.fileName);
});
const progressEl = document.createElement('div');
progressEl.style.position = 'fixed';
progressEl.style.bottom = '100px';
progressEl.style.right = '50px';
progressEl.style.padding = '10px 20px';
progressEl.style.fontSize = '16px';
progressEl.style.borderRadius = '5px';
progressEl.style.color = '#fff';
progressEl.style.backgroundColor = '#f00';
progressEl.style.cursor = 'default';
document.body.appendChild(progressEl);
const currentProgressEl = document.createElement('div');
currentProgressEl.style.position = 'fixed';
currentProgressEl.style.bottom = '160px';
currentProgressEl.style.right = '50px';
currentProgressEl.style.width = '200px';
currentProgressEl.style.padding = '10px 20px';
currentProgressEl.style.fontSize = '16px';
currentProgressEl.style.borderRadius = '5px';
currentProgressEl.style.color = '#fff';
currentProgressEl.style.backgroundColor = '#009688';
currentProgressEl.style.cursor = 'default';
currentProgressEl.style.display = 'none';
document.body.appendChild(currentProgressEl);
let downloadCount = 0;
// 创建新的绿色按钮元素
const greenButton = document.createElement('button');
greenButton.textContent = '下载失败的文件';
greenButton.style.position = 'fixed';
greenButton.style.bottom = '150px';
greenButton.style.right = '50px';
greenButton.style.padding = '10px 20px';
greenButton.style.fontSize = '16px';
greenButton.style.borderRadius = '5px';
greenButton.style.color = '#fff';
greenButton.style.backgroundColor = 'green';
greenButton.style.cursor = 'pointer';
// 将绿色按钮添加到页面中
document.body.appendChild(greenButton);
// 为新按钮添加点击事件处理函数
greenButton.addEventListener('click', function() {
const errors = downloadLinks.filter(function(link) {
return !link.success;
}).map(function(link) {
return link.fileName;
});
if (errors.length > 0) {
alert('以下文件下载失败：\n\n' + errors.join('\n'));
} else {
alert('没有文件下载失败！');
}
});
function downloadNext() {
if (downloadCount >= downloadLinks.length) {
progressEl.textContent = '爬取进度：' + downloadCount + '/' + downloadLinks.length + '，全部完成';
currentProgressEl.style.display = 'none';
return;
}
const link = downloadLinks[downloadCount];
const xhr = new XMLHttpRequest();
xhr.open('GET', link.href);
xhr.responseType = 'blob';
xhr.onload = function() {
if (xhr.status === 200) {
downloadCount++;
const blob = new Blob([xhr.response], { type: 'audio/mp3' });
URL.revokeObjectURL(link.href);
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = link.fileName;
document.body.appendChild(a);
a.click();
a.remove();
// 下载成功，更新进度
progressEl.textContent = '爬取进度：' + downloadCount + '/' + downloadLinks.length;
if (currentProgressEl) {
currentProgressEl.textContent = '';
currentProgressEl.style.display = 'none';
}
// 标记当前链接下载成功
link.success = true;
setTimeout(downloadNext, 500);
} else {
// 下载失败，标记当前链接下载失败
downloadCount++;
link.success = false;
setTimeout(downloadNext, 0);
}
};
// 发送请求
xhr.send();
}
downloadNext();
}
const button = document.createElement('button');
button.textContent = "下载当前页面所有录音文件";
button.style.position = 'fixed';
button.style.bottom = '50px';
button.style.right = '50px';
button.style.padding = '10px 20px';
button.style.fontSize = '16px';
button.style.borderRadius = '5px';
button.style.color = '#fff';
button.style.backgroundColor = '#f00';
button.style.cursor = 'pointer';
button.addEventListener('click', function() {
downloadAll();
});
document.body.appendChild(button);
})();