下载汽水音乐歌词（LRC逐字格式）
// ==UserScript==
// @name 汽水音乐歌词下载
// @namespace http://tampermonkey.net/
// @version 1.0
// @description 下载汽水音乐歌词（LRC逐字格式）
// @author Yanice537
// @match https://music.douyin.com/qishui/share/track*
// @grant none
// ==/UserScript==
(function() {
'use strict';
// 创建下载按钮
function createDownloadButton() {
const btn = document.createElement('button');
btn.innerHTML = '下载LRC歌词';
btn.style.position = 'fixed';
btn.style.bottom = '20px';
btn.style.right = '20px';
btn.style.zIndex = '9999';
btn.style.padding = '12px 24px';
btn.style.background = 'linear-gradient(45deg, #ff2a55, #ff8a00)';
btn.style.color = 'white';
btn.style.border = 'none';
btn.style.borderRadius = '30px';
btn.style.fontWeight = 'bold';
btn.style.fontSize = '16px';
btn.style.cursor = 'pointer';
btn.style.boxShadow = '0 4px 15px rgba(255, 42, 85, 0.4)';
btn.style.transition = 'all 0.3s ease';
btn.onmouseover = () => {
btn.style.transform = 'translateY(-3px)';
btn.style.boxShadow = '0 6px 20px rgba(255, 42, 85, 0.6)';
};
btn.onmouseout = () => {
btn.style.transform = 'translateY(0)';
btn.style.boxShadow = '0 4px 15px rgba(255, 42, 85, 0.4)';
};
btn.onclick = downloadLyrics;
document.body.appendChild(btn);
return btn;
}
// 下载歌词
async function downloadLyrics() {
const btn = this;
const originalText = btn.innerHTML;
btn.innerHTML = '获取歌词中...';
btn.disabled = true;
try {
// 获取当前页面URL参数
const urlParams = new URLSearchParams(window.location.search);
const track_id = urlParams.get('track_id');
if (!track_id) {
throw new Error('无法获取歌曲ID');
}
// 构建API请求URL
const apiUrl = `https://music.douyin.com/qishui/share/track?${urlParams.toString()}`;
// 发送请求获取歌词数据
const response = await fetch(apiUrl);
const responseText = await response.text();
// 获取歌曲元数据
const { artistName, songTitle, composer, lyricist } = extractMetadata(responseText);
// 创建文件名
const filename = `${artistName}-${songTitle}.lrc`.replace(/[\\/:*?"<>|]/g, '');
// 解析歌词
let lrcContent = parseLyrics(responseText);
// 添加元数据到歌词开头
lrcContent = addMetadataToLyrics(lrcContent, composer, lyricist);
// 下载文件
downloadFile(lrcContent, filename);
btn.innerHTML = '下载成功！';
setTimeout(() => {
btn.innerHTML = originalText;
btn.disabled = false;
}, 2000);
} catch (error) {
console.error('歌词下载失败:', error);
btn.innerHTML = '失败，点击重试';
btn.disabled = false;
// 显示错误提示
showErrorToast(`歌词下载失败: ${error.message}`);
}
}
// 提取歌曲元数据
function extractMetadata(responseText) {
// 歌曲名
const songTitleMatch = responseText.match(/"trackName":"(.*?)"/);
const songTitle = songTitleMatch ? songTitleMatch[1] : '未知歌曲';
// 歌手名
const artistNameMatch = responseText.match(/"artistName":"(.*?)"/);
const artistName = artistNameMatch ? artistNameMatch[1] : '未知歌手';
// 作曲
const composerMatch = responseText.match(/"text":"作曲：(.*?)","startMs":(\d+),"endMs":(\d+)/);
const composer = composerMatch ? composerMatch[1] : '未知作曲';
// 作词
const lyricistMatch = responseText.match(/"text":"作词：(.*?)","startMs":(\d+),"endMs":(\d+)/);
const lyricist = lyricistMatch ? lyricistMatch[1] : '未知作词';
return {
songTitle,
artistName,
composer,
lyricist
};
}
// 添加元数据到歌词开头
function addMetadataToLyrics(lyrics, composer, lyricist) {
return `[ar:${composer}]\n` +
`[ti:${lyricist}]\n\n` +
lyrics;
}
// 解析歌词
function parseLyrics(responseText) {
// 使用正则表达式提取逐行歌词
const lineLyrics = [];
const lineRegex = /{"text":"(.*?)","startMs":(\d+),"endMs":(\d+)(?=,"words":)/g;
let lineMatch;
while ((lineMatch = lineRegex.exec(responseText)) !== null) {
lineLyrics.push({
text: lineMatch[1],
startMs: parseInt(lineMatch[2]),
endMs: parseInt(lineMatch[3])
});
}
// 提取逐字歌词信息
const wordLyrics = [];
const wordRegex = /{"startMs":(\d+),"endMs":(\d+),"text":"(.*?)"}/g;
let wordMatch;
while ((wordMatch = wordRegex.exec(responseText)) !== null) {
wordLyrics.push({
startMs: parseInt(wordMatch[1]),
endMs: parseInt(wordMatch[2]),
text: wordMatch[3]
});
}
// 准备LRC内容
const lrcContent = [];
// 处理每一行歌词
for (const line of lineLyrics) {
const lineStartMs = line.startMs;
const lineEndMs = line.endMs;
const lineText = line.text;
// 收集属于当前行的逐字歌词
const lineWords = [];
for (const word of wordLyrics) {
if (word.startMs >= lineStartMs && word.startMs <= lineEndMs) {
lineWords.push({
startMs: word.startMs,
text: word.text
});
}
}
// 如果没有逐字歌词，使用整行文本
if (lineWords.length === 0) {
const timeTag = formatTime(lineStartMs);
lrcContent.push(`${timeTag}${lineText}`);
} else {
// 按时间排序逐字歌词
lineWords.sort((a, b) => a.startMs - b.startMs);
// 生成逐字LRC行
let lineStr = '';
for (const word of lineWords) {
const timeTag = formatTime(word.startMs);
lineStr += `${timeTag}${word.text}`;
}
lrcContent.push(lineStr);
}
}
return lrcContent.join('\n');
}
// 格式化时间标签
function formatTime(ms) {
const minutes = Math.floor(ms / 60000);
const seconds = Math.floor((ms % 60000) / 1000);
const centiseconds = Math.floor((ms % 1000) / 10);
return `[${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}.${centiseconds.toString().padStart(2, '0')}]`;
}
// 下载文件
function downloadFile(content, filename) {
const blob = new Blob([content], { type: 'text/plain' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
// 清理
setTimeout(() => {
document.body.removeChild(a);
URL.revokeObjectURL(url);
}, 100);
}
// 显示错误提示
function showErrorToast(message) {
let toast = document.getElementById('lyrics-error-toast');
if (!toast) {
toast = document.createElement('div');
toast.id = 'lyrics-error-toast';
toast.style.position = 'fixed';
toast.style.top = '20px';
toast.style.left = '50%';
toast.style.transform = 'translateX(-50%)';
toast.style.backgroundColor = '#ff2a55';
toast.style.color = 'white';
toast.style.padding = '15px 25px';
toast.style.borderRadius = '8px';
toast.style.zIndex = '10000';
toast.style.fontWeight = 'bold';
toast.style.boxShadow = '0 4px 15px rgba(0, 0, 0, 0.3)';
toast.style.transition = 'opacity 0.3s';
document.body.appendChild(toast);
}
toast.textContent = message;
toast.style.opacity = '1';
setTimeout(() => {
toast.style.opacity = '0';
}, 3000);
}
// 初始化
window.addEventListener('load', () => {
createDownloadButton();
});
})();
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